CN103456577B - Pyromagnetic release and circuit breaker - Google Patents
Pyromagnetic release and circuit breaker Download PDFInfo
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- CN103456577B CN103456577B CN201210175584.7A CN201210175584A CN103456577B CN 103456577 B CN103456577 B CN 103456577B CN 201210175584 A CN201210175584 A CN 201210175584A CN 103456577 B CN103456577 B CN 103456577B
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Abstract
A kind of Pyromagnetic release with fault type deixis is provided, comprises: when there is actuated components and be set to make the main circuit of circuit breaker normally to run or occur to transship actuated components be failure to actuate and there is short circuit in the main circuit of circuit breaker time actuated components action actuating unit; Can the tripping actuation component of Passively activated component actuation; The tripping be interlockingly connected with tripping actuation component; The short circuit instruction dropout actuation component of component actuation can be activated; The short circuit indicating dropout actuation component to be interlockingly connected with short circuit indicates release member; And the bimetal leaf being set to make the temperature distortion of this bimetal leaf to deflect can to press tripping actuation component and move to make tripping actuation component.Thus, when breaking down, Pyromagnetic release can indicate overload or short circuit to result in circuit breaker disconnection.The present invention also provides the circuit breaker comprising aforementioned hot magnetic release.
Description
Technical field
The present invention relates to release, more specifically, relate to the Pyromagnetic release for circuit breaker.The invention still further relates to circuit breaker, more specifically, relate to the circuit breaker with Pyromagnetic release.
Background technology
Release discharges the maintaining body of circuit breaker thus a kind of common apparatus that circuit breaker is disconnected automatically, usually can be divided into magnetic release, electronic trip unit and Pyromagnetic release, and Pyromagnetic release wherein has a very wide range of applications due to advantages such as cost is low, stable performance, long service life.
But, existing Pyromagnetic release does not have fault type deixis in the market, namely, after Pyromagnetic release makes circuit breaker tripping, user only knows and has occurred fault, but, that which kind of fault result in dropout and but cannot directly know on earth, such as, when after circuit breaker tripping, user cannot directly judge to have occurred that overload (namely, circuit breaker subjected to the overload current exceeding rated current) result in dropout, still there is short circuit (namely, circuit breaker subjected to the short circuit current larger than overload current) result in dropout, this causes certain difficulty for maintainer's fast finding line fault.
Therefore, there is a kind of demand, namely a kind of Pyromagnetic release with fault indication function is provided, more specifically, provide a kind of Pyromagnetic release with overload and short trouble deixis.Correspondingly, also there is a kind of demand, namely the circuit breaker of the Pyromagnetic release with aforementioned function is provided.
Summary of the invention
According to above-mentioned shortcoming and defect, the object of the invention is at least to solve the above-mentioned problems in the prior art.
According to a preferred embodiment of the invention, a kind of Pyromagnetic release for circuit breaker is provided, this Pyromagnetic release comprises: actuating unit, this actuating unit comprises actuated components, and when being set to the main circuit of circuit breaker is normally run or overload occur actuated components be failure to actuate and there is short circuit in the main circuit of circuit breaker time actuated components action; Tripping actuation component, this tripping actuation component have can activated component actuation part to make to be moved by the motion of actuated components; Tripping, a part for this tripping and tripping actuation component is interlockingly connected; Short circuit instruction dropout actuation component, this short circuit instruction dropout actuation component have can activated component actuation part to make to be moved by the motion of actuated components; Short circuit instruction release member, this short circuit instruction release member and short circuit indicate a part for dropout actuation component to be interlockingly connected; And bimetal leaf, this bimetal leaf is set to make the temperature distortion of this bimetal leaf deflection can press tripping actuation component and moves to make tripping actuation component.Thus, a kind of Pyromagnetic release with overload and short trouble deixis can be provided.
In above preferred embodiment of the present invention, preferably, actuating unit also comprises the electromagnet unit be made up of moving armature and static gag bit, moving armature carries and is fixed on actuated components, when normally running to make the main circuit of circuit breaker or overload occurs, moving armature is failure to actuate thus actuated components is failure to actuate, and moving armature action thus actuated components action when short circuit appears in the main circuit of circuit breaker.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, actuating unit also comprises current-carrying board component, and actuated components is connected on the Part I of current-carrying board component, static gag bit is fixed on the Part II of this current-carrying board component, to make static gag bit and moving armature toward each other.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, bimetal leaf is fixed on current-carrying board component.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, actuated components is connected on the Part I of current-carrying board component pivotly.Thus, the motion of actuated components can be designed as pivoting action, thus at least can be conducive to the Miniaturization Design of whole release and ensure the reliability of mechanism action.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, tripping actuation component has pivotable body and is connected to the first arm and second arm of this body, wherein the first arm can activated parts and presses, second arm and tripping are interlockingly connected, to make the pivotable of actuated components can press the first arm to make this first arm pivotable, and then drive the second arm pivotable by body, and then tripping and tripping actuation component are threaded off.Thus, the motion of tripping actuation component can be designed as pivoting action, thus at least can be conducive to the Miniaturization Design of whole release and ensure the reliability of mechanism action.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, short circuit instruction dropout actuation component has pivotable main body and is connected to the first bar and second bar of this main body, wherein the first bar can activated parts and presses, second bar and short circuit indicate release member to be interlockingly connected, to make the pivotable of actuated components can press the first bar to make this first bar pivotable, and then drive the second bar pivotable by main body, and then make short circuit indicate release member and short circuit to indicate dropout actuation component to thread off.Thus, the motion of short circuit instruction dropout actuation component can be designed as pivoting action, thus at least can be conducive to the Miniaturization Design of whole release and ensure the reliability of mechanism action.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, the temperature distortion deflection of bimetal leaf can press tripping actuation component to make the pivoted motion of tripping actuation component, and then tripping and tripping actuation component are threaded off.Thus, actuated components and bimetal leaf all may actuate tripping actuation component, and in other words, bimetal leaf can as the another set of mechanism of actuating tripping actuation component.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, current-carrying board component is communicated with the main circuit of circuit breaker.Thus, the electric current in current-carrying board component is actual is same electric current with the electric current in the main circuit of circuit breaker.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, electromagnet unit is placed through current-carrying board component and energizes, and be set to when the main circuit of circuit breaker normally runs or overload occurs, this electromagnet unit is also failure to actuate, and when the main circuit of circuit breaker is short-circuited, electromagnet unit action, move towards static gag bit to make moving armature, move to press both tripping actuation component and short circuit instruction dropout actuation component to make actuated components, to thread off to make tripping and tripping actuation component and described short circuit indicates release member and described short circuit to indicate dropout actuation component to thread off.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, bimetal leaf is placed through current-carrying board component and is heated, and be set to when the main circuit of circuit breaker normally runs, the temperature distortion deflection of this bimetal leaf is not enough to press tripping actuation component and moves to make tripping actuation component, and when overload occurs the main circuit of circuit breaker, the temperature distortion deflection of this bimetal leaf presses tripping actuation component and threads off to make tripping and tripping actuation component.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, short circuit instruction release member has a backstopping assembly, to make after both short circuit instruction release member and tripping are threaded off, the reset of this backstopping assembly backstop tripping actuation component so make tripping cannot with this tripping actuation component snapping, to make the short circuit instruction release member that must first reset before reset tripping.Thus, provide user to identify another means of short trouble, and this may bring the fault of the serious consequence of such as fire user unexpectedly can not to be ignored in circuit occur short circuit.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, backstopping assembly is a plate with holes, after indicating release member to thread off to make short circuit, not the having the reseting movement being connected to the 3rd arm of body of the entity part backstop tripping actuation component in hole thus tripping actuation component can not be resetted of this backstopping assembly, so make tripping cannot with this tripping actuation component snapping; And after short circuit instruction release member resets, the bore portion of backstopping assembly aims at the 3rd arm of tripping actuation component, thus the reset of not backstop tripping actuation component.Thus, structure the backstop function of backstopping assembly can be realized simply.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, Pyromagnetic release has a housing, and this housing has first window and Second Window, and a part for tripping is visible by first window, and a part for short circuit instruction release member is visible by Second Window.Thus, (dropout) action that user observes easily and/or identifies tripping and short circuit instruction release member in release can be conducive to.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, a part for tripping has mark to make the motion of this mark can by first window as seen to indicate this tripping whether to thread off.Thus, (dropout) action of tripping in user's rapid examination and/or identification release can more be contributed to.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, short circuit instruction release member a part on have mark with make the motion of this mark can by Second Window as seen with indicate this short circuit indicate release member whether thread off.Thus, more can contribute to user's rapid examination and/or identify that in release, short circuit indicates (dropout) action of release member.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, if learn that this tripping and this short circuit instruction release member are not all threaded off by observation, then show normal operation circuit, if learn this tripping dropout by observation and this short circuit instruction release member is not threaded off, then show circuit overloads, if learn that this tripping and this short circuit instruction release member are all threaded off by observation, then show short circuit.Thus, judged by the combination of the action of tripping and the action of this short circuit instruction release member, fault type can be identified fast.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, short circuit instruction release member has the nose bar be positioned at below Second Window, and this nose bar can be outstanding to indicate this short circuit to indicate release member to thread off from Second Window when short circuit instruction release member is threaded off.Thus, another way is provided to identify the action of this short circuit instruction release member.
According to a preferred embodiment of the invention, also provide a kind of circuit breaker, this circuit breaker comprises: as the Pyromagnetic release described in above-mentioned arbitrary preferred embodiment of the present invention; And breaker body, wherein, the release member of this breaker body is associated with the tripping of Pyromagnetic release, actuates the release member of this breaker body with the trip action of the tripping making Pyromagnetic release, and then the main circuit of cut-off breaker.
Will be appreciated that, foregoing description is only used to exemplary object, instead of will limit the scope of the invention.
Accompanying drawing explanation
Above-mentioned and the further feature of exemplary embodiment of the present invention and advantage will become more obvious from detailed description with the accompanying drawing below, and this description and accompanying drawing are only for exemplary purpose instead of limit the scope of the invention by any way, wherein:
Fig. 1 is the schematic side elevation of the internal structure of Pyromagnetic release when there is not overload and short trouble illustrated according to a first advantageous embodiment of the invention, and wherein tripping and short circuit instruction release member are not all threaded off;
Fig. 2 is the schematic side elevation of the internal structure of Pyromagnetic release when there is short trouble illustrated as shown in Figure 1, and wherein tripping and short circuit instruction release member are all threaded off;
Fig. 3 is the schematic side elevation of the internal structure of Pyromagnetic release when there is overload fault illustrated as shown in Figure 1, wherein tripping dropout and short circuit instruction release member do not thread off;
Fig. 4 is the perspective schematic view of the internal structure of the Pyromagnetic release illustrated as shown in Figure 1;
Fig. 5 is another perspective schematic view of the internal structure of the Pyromagnetic release illustrated as shown in Figure 1;
Fig. 6 is the schematic plan of the exterior panel structure of the Pyromagnetic release illustrated as shown in Figure 1;
Fig. 7 is the schematic side elevation that the internal structure of Pyromagnetic release according to a second, preferred embodiment of the present invention when there is not overload and short trouble is shown, wherein tripping and short circuit instruction release member are not all threaded off;
Fig. 8 is the schematic side elevation of the internal structure of Pyromagnetic release when there is short trouble illustrated as shown in Figure 7, and wherein tripping and short circuit instruction release member are all threaded off;
Fig. 9 is the schematic side elevation of the internal structure of Pyromagnetic release when there is overload fault illustrated as shown in Figure 7, wherein tripping dropout and short circuit instruction release member do not thread off;
Figure 10 is the perspective schematic view of the exterior panel structure of the Pyromagnetic release illustrated as shown in Figure 7; And
Figure 11 is the partial schematic perspective view of the internal structure of the Pyromagnetic release illustrated as shown in Figure 7.
Embodiment
Each exemplary embodiment of the present invention is described below with reference to accompanying drawings.
Aforementioned and other technology contents, feature and effect for the present invention, at following cooperation reference accompanying drawing in the detailed description of embodiment, can clearly present.The direction term mentioned in following examples such as: upper and lower, left and right, front or rear etc., is only the direction with reference to accompanying drawing.Therefore, the direction term of use is used to illustrate and is not used for limiting the present invention, and in addition, in whole embodiment, identical drawing reference numeral represents identical element.
First it should be noted that, above and the term hereinafter mentioned " overload ", " overload current " or " overload fault " indication circuit occur overload situation, such as, electric current is the situation of the 140%-300% of rated current; Term " short circuit ", " short circuit current " or " short trouble " then represent and occur that the situation of short circuit appears in circuit, and such as, electric current is greater than the situation of 300% of rated current.In other words, although from certain Special Significance, short circuit can be considered as a kind of very special overload situations, in this article, the two is different fault type, and have different implication, the current range included by the two is not overlapping, overload current is exceed the relatively less electric current of rated current, short circuit current is then for exceeding the relatively many electric currents of rated current, that is, short circuit current is not be not called yet or regard as overload current.
Referring now to Fig. 1-6, Pyromagnetic release is according to a first advantageous embodiment of the invention described.
First with reference to Fig. 1, it is the schematic side elevation of the internal structure of Pyromagnetic release when there is not overload and short trouble illustrated according to a first advantageous embodiment of the invention, wherein tripping and short circuit instruction release member are not all threaded off, in the figure, hold the housing of Pyromagnetic release internal structure and not shown, to illustrate the internal structure of Pyromagnetic release better.
According to a first advantageous embodiment of the invention for circuit breaker, normally low-voltage circuit breaker, Pyromagnetic release comprise: current-carrying board component 10; Actuated components 20, this actuated components 20 is connected on the Part I of current-carrying board component 10; Moving armature 30, this moving armature 30 is fixed on actuated components 20; Static gag bit 40, this static gag bit 40 is fixed on the Part II of this current-carrying board component 10, to make static gag bit 40 relative to moving armature 30 jointly to form an electromagnet unit, be failure to actuate when this electromagnet unit is set to the main circuit of circuit breaker is normally run or overload occurs and there is short circuit in the main circuit of circuit breaker time action; Tripping actuation component 50, this tripping actuation component 50 has and can activated the part that parts 20 press and move to make by pressing of actuated components 20; Tripping 60, this tripping 60 is interlockingly connected with a part for tripping actuation component 50; Short circuit instruction dropout actuation component 70, this short circuit instruction dropout actuation component 70 has and can activated the part that parts 20 press and move to make by pressing of actuated components 20; Short circuit instruction release member 80, this short circuit instruction release member 80 indicates a part for dropout actuation component 70 to be interlockingly connected with short circuit; Bimetal leaf 90, this bimetal leaf 90 is fixed on current-carrying board component 10, and has certain length and can press tripping actuation component 50 move to make tripping actuation component 50 to make the temperature distortion of this bimetal leaf 90 deflect.
Although in fig. 1, actuated components 20, tripping actuation component 50 and short circuit instruction dropout actuation component 70 are depicted as pivotable parts (can be described in further detail hereinafter), but, obviously, the present invention is not limited to the situation shown in accompanying drawing, namely one or more in actuated components 20, tripping actuation component 50 and short circuit instruction dropout actuation component 70 can be the parts of other forms of motion, such as, translation or translation can add the parts of rotation.That is, total inventive concept of the present invention is, when overload occurs (as shown in Figure 3), bimetal leaf moves, thus tripping actuation component is moved, and then actuate tripping, now short circuit instruction dropout actuation component and short circuit instruction release member are not moved; And when occurring short circuit (as shown in Figure 2), actuated components moves, thus (it makes tripping actuation component move early than bimetal leaf usually to make tripping actuation component move, because the magnetic response of electromagnet unit is faster than the thermal response of bimetal leaf) and make short circuit indicate dropout actuation component to move, and then actuate tripping and short circuit instruction release member respectively, thus, can come in decision circuitry, to have occurred overload fault or short trouble by the combination of the action of actuating tripping and short circuit instruction release member.Can find out, as long as the relative motion of above-mentioned interlinked mechanism/actuate can be realized, finally can realize the identification of fault type, and be not limited to the concrete type of sports of interlinked mechanism, such as, as long as the motion of actuated components can make short circuit indicate dropout actuation component and short circuit instruction release member to move, such as its can be moving armature towards static gag bit slip/translation, and regardless of actuated components forms of motion how.
Now simultaneously with reference to Fig. 1-5, wherein, Fig. 2 is the schematic side elevation of the internal structure of Pyromagnetic release when there is short trouble illustrated as shown in Figure 1, and wherein tripping and short circuit instruction release member are all threaded off; Fig. 3 is the schematic side elevation of the internal structure of Pyromagnetic release when there is overload fault illustrated as shown in Figure 1, wherein tripping dropout and short circuit instruction release member do not thread off; Fig. 4 is the perspective schematic view of the internal structure of the Pyromagnetic release illustrated as shown in Figure 1; And Fig. 5 is another perspective schematic view of the internal structure of the Pyromagnetic release illustrated as shown in Figure 1.
For the design of actuated components and associated components thereof, in a preferred embodiment of the invention, actuated components 20 is connected on the Part I of current-carrying board component 10 pivotly, moving armature 30 is attached on actuated components 20, static gag bit 40 is connected on the Part II of current-carrying board component 10, and moving armature 30 and static gag bit 40 form an electromagnet unit relative to one another, and current-carrying board component 10 is communicated with the main circuit of circuit breaker, thus, electromagnet unit can be energized by current-carrying board component 10.Can find out, in a preferred embodiment of the invention, current-carrying board component plays the effect energized for electromagnet unit and support simultaneously, thus is conducive to designs simplification.Certainly, electromagnet unit also can be energized by alternate manner, as long as the electric current of energizing to electromagnet unit is associated with the electric current of circuit breaker main circuit (such as but not limited to, there is between energized current and main circuit current certain proportion relation), be associated with the electric current of the action with main circuit that make electromagnet unit (such as overload current and short circuit current).
Further, as Figure 1-3, actuated components 20 upwards extends thus makes the top of actuated components 20 indicate dropout actuation component 70 bottom higher than tripping actuation component 50 and short circuit, thus makes the pivoting action of actuated components 20 can actuate both tripping actuation component 50 and short circuit instruction dropout actuation component 70.Pivoting action can realize actuating of corresponding component in less space, thus is conducive to the miniaturization of whole Pyromagnetic release.Moreover pivoting action carries out actuating and is also conducive to improving job stability and useful life.
For the design of tripping actuation component and associated components thereof, in a preferred embodiment of the invention, with reference to Fig. 2 and 3, tripping actuation component 50 has pivotable body 503 and is connected to first arm 501 and second arm 502 being in certain angle of this body 503, the first arm 501 can be pressed to make this first arm 501 pivotable to make the pivotable of actuated components 20, and then drive the second arm 502 pivotable by body 503, and then tripping 60 and tripping actuation component 50 are threaded off.As previously mentioned, the structural design of the pivoting action of tripping actuation component have such as make that Pyromagnetic release is miniaturized, structure simple, the advantage such as reliable operation and long service life.
Short circuit is indicated to the design of dropout actuation component and associated components thereof, in a preferred embodiment of the invention, with reference to Fig. 2 and 3, short circuit instruction dropout actuation component 70 has pivotable main body 703 and is connected to first bar 701 and second bar 702 being in certain angle of this main body 703, the first bar 701 can be pressed to make this first bar pivotable to make the pivotable of actuated components 20, and then drive the second bar 702 pivotable by main body 703, and then short circuit is made to indicate release member 80 and short circuit to indicate dropout actuation component 70 to thread off.
For the design of bimetal leaf and associated components thereof, in a preferred embodiment of the invention, with reference to Fig. 1-3, bimetal leaf 90 is connected on current-carrying board component, when overload appears in circuit, it is by heating with its parts attached mutually on current-carrying board component, thus the deflection that deforms, and then press a part for tripping actuation component 50, such as, from the rod member that body 503 extends, to make the pivoted motion of tripping actuation component 50, and then tripping 60 and tripping actuation component 50 are threaded off.
Thus, the electric current of electromagnet unit generation action can be arranged a threshold value, the corresponding minimum short circuit current of this threshold value, namely when electric current is less than this threshold value, when namely there is not short trouble when normally working and overload fault occurring (comprise circuit), there is not action in electromagnet unit; And when electric current is greater than this threshold value, when namely there is short trouble, electromagnet unit generation action.More particularly, electromagnet unit is placed through current-carrying board component 10 and energizes, and be set to when the main circuit of circuit breaker normally runs or overload occurs, this electromagnet unit is also failure to actuate, and when the main circuit of circuit breaker is short-circuited, electromagnet unit action, move towards static gag bit 40 to make moving armature 30, both tripping actuation component 50 and short circuit instruction dropout actuation component 70 is pressed to make actuated components 20 rotate, to thread off to make tripping 60 and tripping actuation component 50 and short circuit indicate release member 80 and short circuit to indicate dropout actuation component 70 to thread off.
On the other hand, bimetal leaf 90 is placed through current-carrying board component 10 and is heated, and be set to when the main circuit of circuit breaker normally runs, the temperature distortion deflection of this bimetal leaf 90 is not enough to press tripping actuation component 50 and moves to make tripping actuation component 50, and when overload occurs the main circuit of circuit breaker, the temperature distortion deflection of this bimetal leaf 90 presses tripping actuation component 50 and threads off to make tripping 60 and tripping actuation component 50.
With reference to Figure 4 and 5, it illustrates the three-dimensional side view of the internal structure of Pyromagnetic release according to a first advantageous embodiment of the invention.
In the diagram, the pivotable main body 703 of short circuit instruction dropout actuation component 70 is depicted as an elongated rod member, this elongated rod member is socketed in the axle of the sidewall of the housing through release, thus this elongated rod member can pivotable, and then the first bar 701 and the second bar 702 of the elongated rod member form on it can be driven.The top of actuated components 20 indicates the first bar 701 of dropout actuation component 70 higher than short circuit and protects the first arm 501 of actuation component bottom, can press the first bar 701 and the first arm 501 to make actuated components 20 in pivotable process.
In Figure 5, can know and find out that the second arm 502 of tripping actuation component has ledge structure, the part snapping to downward-extension of the left end of this step and tripping 60.Can predict, the second arm 502 is rotated counterclockwise under the actuating of actuated components 20, and the second arm 502 will be threaded off with tripping 60.Thus, achieve snapping and the tripping function of tripping actuation component and tripping, but obviously, the present invention is not limited to specific execution mode shown in the drawings, as long as the snapping of the two can be realized and thread off.
In Figure 5, can also know and find out, the second bar 702 of short circuit instruction dropout actuation component has the hook formation to downward-extension, this hook formation and short circuit indicate the part snapping upwards extended of the left end of release member 80.Can predict, the second arm 502 is rotated counterclockwise under the actuating of actuated components 20, and the second bar 702 will indicate release member 80 to thread off in short circuit.Thus, achieve short circuit and indicate dropout actuation component and short circuit to indicate snapping and the tripping function of release member, but obviously, the present invention is not limited to specific execution mode shown in the drawings, as long as the snapping of the two can be realized and thread off.
Thus, achieve under overload and short-circuit conditions, the inside linkage part of Pyromagnetic release has different motions respectively, and then can judge that the preferred structure of overload fault or short trouble designs by the motion of tripping and short circuit instruction release member.
The motion how observing and/or identify tripping and short circuit instruction release member is then described below.
With reference to Fig. 6, it is the schematic plan of the exterior panel structure of the Pyromagnetic release illustrated as shown in Figure 1.In figure 6, Pyromagnetic release has a housing, holds the above-mentioned internal part of Pyromagnetic release.This housing has first window 1001 and Second Window 1002, and a part for tripping 60 is visible by first window 1001, and a part for short circuit instruction release member 80 is visible by Second Window 1002.If learn that this tripping and this short circuit instruction release member are not all threaded off by observation, then show normal operation circuit, if learn this tripping dropout by observation and this short circuit instruction release member is not threaded off, then show circuit overloads, if learn that this tripping and this short circuit instruction release member are all threaded off by observation, then show short circuit.
Further, a part for tripping 60 can be provided with mark so that observe, to make the motion of this mark can be visible to indicate this tripping 60 whether to thread off by first window 1001.Similarly, a part for short circuit instruction release member 80 also can be provided with mark so that observe, to make the motion of this mark can by Second Window 1002 as seen to indicate this short circuit to indicate release member 80 whether to thread off.Above-mentioned mark can be such as pattern, colour code or other form.Such as, in the embodiment illustrated in fig. 6, tripping 60 is labeled as " TRIP " printed words, and short circuit instruction release member 80 is labeled as " S.C. " printed words.During normal operation circuit, tripping and short circuit instruction release member are not all threaded off, and can't see " TRIP " and " S.C. " printed words in first window 1001 and Second Window 1002 respectively.When overload occurs, tripping is threaded off and moves right (see Fig. 3), mark on it correspondingly can be seen by first window 1001, therefore in first window 1001, there are " TRIP " printed words, now, because short circuit instruction release member is not threaded off, therefore can't see " S.C. " printed words at Second Window 1002, thus, there are not " S.C. " printed words when appearance " TRIP " printed words, then can occur overload fault in decision circuitry.When a short circuit occurs, tripping is threaded off and moves right (see Fig. 2), mark on it correspondingly can be seen by first window 1001, therefore in first window 1001, occur " TRIP " printed words, now, short circuit instruction release member is also threaded off and moves right (see Fig. 2), therefore " S.C. " printed words are seen at Second Window 1002, thus, when there are " TRIP " printed words and " S.C. " printed words simultaneously, then short trouble can have been there is in decision circuitry.
Can find out, give a kind of mode of conveniently identification circuit fault in a preferred embodiment of the invention, but the present invention is not limited to carry out above by pattern printed words the mode that identifies.
Referring now to Fig. 7-11, Pyromagnetic release according to a second, preferred embodiment of the present invention is described, wherein Fig. 7 is the schematic side elevation that the internal structure of Pyromagnetic release according to a second, preferred embodiment of the present invention when there is not overload and short trouble is shown, wherein tripping and short circuit instruction release member are not all threaded off; Fig. 8 is the schematic side elevation of the internal structure of Pyromagnetic release when there is short trouble illustrated as shown in Figure 7, and wherein tripping and short circuit instruction release member are all threaded off; Fig. 9 is the schematic side elevation of the internal structure of Pyromagnetic release when there is overload fault illustrated as shown in Figure 7, wherein tripping dropout and short circuit instruction release member do not thread off; Figure 10 is the perspective schematic view of the exterior panel structure of the Pyromagnetic release illustrated as shown in Figure 7; And Figure 11 is the partial schematic perspective view of the internal structure of the Pyromagnetic release illustrated as shown in Figure 7.
The second preferred embodiment is as illustrated in figures 7-11 with the main difference part of the first preferred embodiment as shown in figures 1 to 6, in the second preferred embodiments, short circuit instruction release member pops up after dropout, correspondingly, in the Second Window of housing it is seen that whether a part for short circuit instruction release member is given prominence to by this window; And in a first preferred embodiment, short circuit instruction release member move right after dropout, correspondingly, in the Second Window of housing it is seen that short circuit instruction release member a part whether move right (namely whether seeing " S.C. " printed words).Difference is also, in the second preferred embodiments, short circuit instruction release member is provided with backstopping assembly, to make the motion of backstop tripping actuation component after dropout, to make the short circuit instruction release member that must first reset before reset tripping, and in a first preferred embodiment, there is not backstopping assembly.
Describe above difference with reference to the accompanying drawings, and repeat no more with the same or similar part of the first embodiment so that succinct.
With reference to accompanying drawing, short circuit instruction release member 80 has a backstopping assembly 801, to make after both short circuit instruction release member 8 and tripping 60 are threaded off, the reset of this backstopping assembly 801 backstop tripping actuation component 50 so make tripping 60 cannot with this tripping actuation component 50 snapping, to make the short circuit instruction release member 80 that must first reset before reset tripping 60.Preferably, illustrate as clear in fig. 11, backstopping assembly 801 is a plate with holes, after indicating release member 80 to thread off to make short circuit, not the having the reseting movement being connected to the 3rd arm 504 of body of the entity part backstop tripping actuation component 50 in hole thus tripping actuation component 50 can not be resetted of this backstopping assembly 801, so make tripping 60 cannot with this tripping actuation component 50 snapping; And after short circuit instruction release member 80 resets, the bore portion of backstopping assembly 801 aims at the 3rd arm 504 of tripping actuation component 50, thus the reset of not backstop tripping actuation component 50.
With reference to Fig. 7-10, short circuit instruction release member 80 has the nose bar 802 be positioned at below Second Window 1002, and this nose bar 802 can indicate release member to thread off to indicate this short circuit from Second Window 1002 outstanding (with reference to Figure 10) when short circuit instruction release member is threaded off.
Thus, with the first embodiment unlike, when short circuit, the nose bar 802 of short circuit instruction release member 80 moves upward, and outstanding from Second Window, user can judge to occur short-circuit conditions thus.When transshipping, nose bar 802 does not move upward, and only tripping moves, in first window, therefore correspondingly observe the motion of tripping.When resetting whole release, due to the backstop of backstopping assembly 801, first must press backstopping assembly, ability and then reset tripping.
In a preferred embodiment of the invention, also provide a kind of circuit breaker, particularly low-voltage circuit breaker, it comprises: according to the Pyromagnetic release of the first embodiment as above or the second embodiment; And breaker body, wherein, the release member of this breaker body is associated with the tripping of Pyromagnetic release, actuates the release member of this breaker body with the trip action of the tripping making Pyromagnetic release, and then the main circuit of cut-off breaker.
Although with reference on the basis of each embodiment, the present invention has been described in the description and has been illustrated in the accompanying drawings, but it will be appreciated by those skilled in the art that, above-described embodiment is only preferred embodiment, some technical characteristic in embodiment may not be required for the specific technical problem of solution, thus not or can omit these technical characteristics and the solution of non-influence technique problem or the formation of technical scheme; And the feature of an embodiment, key element and/or function suitably mutually can combine, combine or coordinate with the feature of other one or more embodiment, key element and/or function, unless this combination, combination or coordinate obviously can not be implemented.
Claims (22)
1. for a Pyromagnetic release for circuit breaker, it is characterized in that, this Pyromagnetic release comprises:
Actuating unit, this actuating unit comprises actuated components, and when being set to the main circuit of circuit breaker is normally run or overload occur described actuated components be failure to actuate and there is short circuit in the main circuit of circuit breaker time described actuated components action;
Tripping actuation component, this tripping actuation component has the part that can be activated by described actuated components and moves to make by the motion of described actuated components;
Tripping, a part for this tripping and described tripping actuation component is interlockingly connected;
Short circuit instruction dropout actuation component, this short circuit instruction dropout actuation component has the part that can be activated by described actuated components and moves to make by the motion of described actuated components;
Short circuit instruction release member, this short circuit instruction release member and described short circuit indicate a part for dropout actuation component to be interlockingly connected; And
Bimetal leaf, this bimetal leaf is set to make the temperature distortion of this bimetal leaf deflection can press described tripping actuation component and moves to make described tripping actuation component.
2. Pyromagnetic release as claimed in claim 1, it is characterized in that, described actuating unit also comprises the electromagnet unit be made up of moving armature and static gag bit, described moving armature carries and is fixed on described actuated components, when normally running to make the main circuit of circuit breaker or overload occurs, described moving armature is failure to actuate thus described actuated components is failure to actuate, and described moving armature action thus described actuated components action when short circuit appears in the main circuit of circuit breaker.
3. Pyromagnetic release as claimed in claim 2, it is characterized in that, described actuating unit also comprises current-carrying board component, described actuated components is connected on the Part I of described current-carrying board component, described static gag bit is fixed on the Part II of this current-carrying board component, to make described static gag bit and described moving armature toward each other.
4. Pyromagnetic release as claimed in claim 3, it is characterized in that, described bimetal leaf is fixed on described current-carrying board component.
5. Pyromagnetic release as claimed in claim 3, it is characterized in that, described actuated components is connected on the Part I of described current-carrying board component pivotly.
6. the Pyromagnetic release as described in one of claim 1-5, it is characterized in that, described tripping actuation component has pivotable body and is connected to the first arm and second arm of this body, wherein said first arm can be pressed by described actuated components, described second arm and described tripping are interlockingly connected, described first arm can be pressed to make this first arm pivotable to make the pivotable of described actuated components, and then drive described second arm pivotable by described body, and then described tripping and described tripping actuation component are threaded off.
7. the Pyromagnetic release as described in one of claim 1-5, it is characterized in that, described short circuit instruction dropout actuation component has pivotable main body and is connected to the first bar and second bar of this main body, wherein said first bar can be pressed by described actuated components, described second bar and described short circuit indicate release member to be interlockingly connected, described first bar can be pressed to make this first bar pivotable to make the motion of described actuated components, and then drive described second bar pivotable by described main body, and then make described short circuit indicate release member and described short circuit to indicate dropout actuation component to thread off.
8. Pyromagnetic release as claimed in claim 6, it is characterized in that, the temperature distortion deflection of described bimetal leaf can press described tripping actuation component to make the pivoted motion of described tripping actuation component, and then described tripping and described tripping actuation component are threaded off.
9. the Pyromagnetic release as described in one of claim 3-5, is characterized in that, described current-carrying board component is communicated with the main circuit of circuit breaker.
10. Pyromagnetic release as claimed in claim 9, it is characterized in that, described electromagnet unit is placed through described current-carrying board component and energizes, and be set to when the main circuit of circuit breaker normally runs or overload occurs, this electromagnet unit is also failure to actuate, and when the main circuit of circuit breaker is short-circuited, described electromagnet unit action, move towards described static gag bit to make described moving armature, move to press both described tripping actuation component and described short circuit instruction dropout actuation component to make described actuated components, to thread off to make described tripping and described tripping actuation component and described short circuit indicates release member and described short circuit to indicate dropout actuation component to thread off.
11. Pyromagnetic releases as claimed in claim 4, it is characterized in that, described bimetal leaf is placed through described current-carrying board component and is heated, and be set to when the main circuit of circuit breaker normally runs, the temperature distortion deflection of this bimetal leaf is not enough to press described tripping actuation component and moves to make described tripping actuation component, and when overload occurs the main circuit of circuit breaker, the temperature distortion deflection of this bimetal leaf presses described tripping actuation component and threads off to make described tripping and described tripping actuation component.
12. Pyromagnetic releases as claimed in claim 6, it is characterized in that, described short circuit instruction release member has a backstopping assembly, to make after described short circuit instruction release member and described both trippings are threaded off, the reset of tripping actuation component described in this backstopping assembly backstop so make described tripping cannot with this tripping actuation component snapping, to make the described short circuit instruction release member that must first reset before reset tripping.
13. Pyromagnetic releases as claimed in claim 12, it is characterized in that, described backstopping assembly is a plate with holes, after indicating release member to thread off to make described short circuit, not the having the reseting movement being connected to the 3rd arm of described body of tripping actuation component described in the entity part backstop in hole thus described tripping actuation component can not be resetted of this backstopping assembly, so make described tripping cannot with this tripping actuation component snapping; And after short circuit instruction release member resets, the bore portion of described backstopping assembly aims at described 3rd arm of described tripping actuation component, thus the reset of not tripping actuation component described in backstop.
14. Pyromagnetic releases as described in one of claim 1-5, it is characterized in that, described Pyromagnetic release has a housing, this housing has first window and Second Window, a part for described tripping is visible by described first window, and a part for described short circuit instruction release member is visible by described Second Window.
15. Pyromagnetic releases as claimed in claim 14, is characterized in that, a part for described tripping have mark to make the motion of this mark can by first window as seen to indicate this tripping whether to thread off.
16. Pyromagnetic releases as claimed in claim 15, is characterized in that, a part for described short circuit instruction release member have mark to make the motion of this mark can by Second Window as seen to indicate this short circuit to indicate release member whether to thread off.
17. Pyromagnetic releases as claimed in claim 16, it is characterized in that, if learn that this tripping and this short circuit instruction release member are not all threaded off by observation, then show normal operation circuit, if learn this tripping dropout by observation and this short circuit instruction release member is not threaded off, then show circuit overloads, if learn that this tripping and this short circuit instruction release member are all threaded off by observation, then show short circuit.
18. Pyromagnetic releases as claimed in claim 13, it is characterized in that, described Pyromagnetic release has a housing, this housing has first window and Second Window, a part for described tripping is visible by described first window, and a part for described short circuit instruction release member is visible by described Second Window.
19. Pyromagnetic releases as claimed in claim 18, is characterized in that, a part for described tripping have mark to make the motion of this mark can by first window as seen to indicate this tripping whether to thread off.
20. Pyromagnetic releases as claimed in claim 19, it is characterized in that, described short circuit instruction release member has the nose bar be positioned at below described Second Window, and this nose bar can be outstanding to indicate this short circuit to indicate release member to thread off from described Second Window when described short circuit instruction release member is threaded off.
21. Pyromagnetic releases as claimed in claim 20, it is characterized in that, if learn that this tripping and this short circuit instruction release member are not all threaded off by observation, then show normal operation circuit, if learn this tripping dropout by observation and this short circuit instruction release member is not threaded off, then show circuit overloads, if learn that this tripping and this short circuit instruction release member are all threaded off by observation, then show short circuit.
22. 1 kinds of circuit breakers, is characterized in that, this circuit breaker comprises:
Pyromagnetic release as described in one of claim 1-21; And
Breaker body,
Wherein, the release member of this breaker body is associated with the tripping of described Pyromagnetic release, actuates the release member of this breaker body with the trip action of the tripping making described Pyromagnetic release, and then the main circuit of cut-off breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210175584.7A CN103456577B (en) | 2012-05-30 | 2012-05-30 | Pyromagnetic release and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210175584.7A CN103456577B (en) | 2012-05-30 | 2012-05-30 | Pyromagnetic release and circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN103456577A CN103456577A (en) | 2013-12-18 |
| CN103456577B true CN103456577B (en) | 2015-12-23 |
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| CN201210175584.7A Active CN103456577B (en) | 2012-05-30 | 2012-05-30 | Pyromagnetic release and circuit breaker |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3373319B1 (en) | 2017-03-09 | 2021-11-10 | LSIS Co., Ltd. | Circuit breaker with instant trip mechanism |
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| US5694101A (en) * | 1995-02-01 | 1997-12-02 | Square D Company | Circuit breaker |
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| Publication number | Publication date |
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| CN103456577A (en) | 2013-12-18 |
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