US3763454A - Thermal switch - Google Patents
Thermal switch Download PDFInfo
- Publication number
- US3763454A US3763454A US00228097A US3763454DA US3763454A US 3763454 A US3763454 A US 3763454A US 00228097 A US00228097 A US 00228097A US 3763454D A US3763454D A US 3763454DA US 3763454 A US3763454 A US 3763454A
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- US
- United States
- Prior art keywords
- conductive
- resistive
- switch member
- thermal switch
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
- H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
- H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/04—Bases; Housings; Mountings
- H01H2037/046—Bases; Housings; Mountings being soldered on the printed circuit to be protected
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
- H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
- H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
- H01H2037/762—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts
- H01H2037/763—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts the spring being a blade spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
- H01H2085/466—Circuit arrangements not adapted to a particular application of the protective device with remote controlled forced fusing
Definitions
- a thermal switch is provided on an insulating support [22] Fled: 1972 member which includes conductive means carried 2 APP] 22 09 thereby with two of the conductive means defining stationary contact means at ends thereof spaced from each other.
- Movable contact means has one end se- [52] [1.8. CI. 337/404, 337/407 cured to one of the stationary Contact means and the [51] Int. Cl. H0lh 37/76 free end thereof extends over the other of the station [58] Field of Search 337/403, 401, 404, my Contact means Resistive means has one end eoh 337/405, 406, 0 nected to one of the two of the conductive means and another end connected to a further conductive means.
- references Cited Means is provided between the stationary contact UNlTED STATES PATENTS means and the free end of the movable contact means 530 430 2 g94 Klein 337/403 maintaining the contact means in electrical engage- 2,548,491 4/1951 Peek, Jr. 337/184 ment and to cause the contact means'to become disen- 1',398,153 11/1921 Reichard... 337/404 gaged when the heat generated by the resistive means 3,301,981 H1967 Urani .1 337/404 exceeds a predetermined limit 8 Claims, 5 Drawing Figures THERMAL SWITCH BACKGROUND OF THE INVENTION Electronic circuitry is typically utilized for testing purposes and it will operate within prescribed voltage limits. In using such circuitry, operators will inadvertently apply the circuitry to voltage areas in excess of the prescribed voltage limits and this will of course damage the circuitry thereby rendering the testing device incapable of further use and requiring its replacement.
- Another way to protect electrical circuitry is to use a bimetallic member which will open the circuit when the current exceeds a certain value. Use of bimetallic members is expensive.
- the present invention overcomes these drawbacks by providing a thermal switch in circuitry which will open the circuit when a predetermined temperature is reached which is determined by the current flowing therein and it can be closed again thereby enabling the circuitry to be reused.
- An object of the present invention is to provide a thermal switch in an electronic or electrical circuit which will open when the current exceeds a predetermined level.
- Another object of the present invention is a thermal switch for an electrical or electronic circuit which can be closed again without replacing any parts.
- a further object of the present invention is the provision of a thermal switch which precisely operates at a predetermined temperature.
- An additional object of the present invention is to provide a thermal switch that is inexpensive for use in connection with electrical or electronic circuitry.
- a still further object of the present invention is a thermal switch having the central portion of resistor means disposed in close proximity to the low melting point solder which maintains the movable contact means in electrical engagement with the stationary contact means.
- FIG. I is a top plan view of a part of a substrate on which a thermal switch is located;
- FIG. 2 is a side elevational view of FIG. 1 with the movable contact member in the open position;
- FIG. 3 is a top plan view of an alternative embodiment of the invention.
- FIG. 4 is a top plan view of a further embodiment of the invention.
- FIG. 5 is a view taken along lines 5 5 of FIG. 4.
- a substrate I which is generally made of aluminum oxide or some suitable dielectric material.
- Conductive members 2, 3 and 4 are carried by substrate 11.
- Conductive members 2 and 4 are connected to other components and other conductive members would be located on substrate 1 and these are not shown in the interest of brevity as well as not being essential to the invention.
- Ends of conductive members 2 and 3 are spaced from each other and they are bridged by a switch member 5 having one end secured to either end of conductive members 2 or 3 via welding or in any other conventional manner.
- switch member 5 is shown in its open position and it is made from a suitable material having spring characteristics which is initially formed having an arcuate configuration.
- the material from which switch member 5 can be made is generally beryllium copper, phosphor bronze, silicon bronze, steel, or any other conductive material having the desirable spring characteristics.
- Low temperature solder 6 having a predetermined melting point is placed at the end of either conductive member 2 or 3 and the free end of switch member 5 is soldered in position thereby connecting conductive members 2 and 3.
- Solder t3 is a conventional solder and it is selected in accordance with the melting point at which the switch means will open.
- the switch means is defined as stationary contact means comprising one of the ends of conductive members 2 or 3, the free end of switch member 5 and the solder 6 of a predetermined melting point.
- a resistor 7 is connected between a section 8 of conductive member 3 and an end of conductive member 4 and its center is disposed in close proximity to the soldered end of the switch means and the reason for this is that the hotest point of the resistor 7 is at or about its center and this will direct the heat right at the soldered end. It is desired that substrate l have proper thermal conductivity to conduct the heat being generated by resistor 7 toward solder 6.
- the switch means is closed by soldering the free end of switch member 5 to the end of conducrent passing therethrough and resistor 7 remains at or below a predetermined level, solder 6 will not melt and normal circuit operation will continue.
- the heat being generated by resistor 7 causes the solder 6 to melt and the switch means opens due to its spring characteristics thereby preventing any damage to the circuitry on substrate )1.
- the solder 6 is reheated and the free end of switch member 5 is resoldered onto the end of conductive member 2 or 3 and the circuitry can be reused without having to be replaced.
- the switch means and the resistor in series therewith constitute a reuseable thermal switch means to prevent excessive voltages from permanently damaging electrical circuitry means.
- FIG. 3 illustrates an alternative embodiment of the thermal switch wherein resistor 7a is disposed under switch member 5a and a thin piece of electrically insulating material 9 is secured over the central portion of resistor 7a in order to prevent any shorting between switch member 5a and resistor 71;. As can be discerned, the center of resistor 7a is positioned in close proximity to the soldered end of switch member 5a.
- FIGS. 4 and 5 illustrate another embodiment of the invention wherein conductive member 3b extends through opening in substrate 1b and has a section 8b extending along the bottom surface of substrate 1b in alignment with conductive member 3b.
- Resistor 7b connects conductive member 4b with section 8b, and it is disposed in alignment with switch section Sb which connects conductive members 2b and 3b so that the central portion of resistor 7b is disposed in close proximity to the soldered end.
- a thermal switch comprising:
- a hybrid solid state means including a substrate of dielectric materialhaving first, second and third conductive means secured on surface means thereof; a switch member of resilient material having a first end secured to said first conductive means and a second end disposed along said second conductive means;
- resistive means having one end connected to said third conductive means and another end connected to said first or second conductive means and being disposed adjacent said switch member, said electrically conductive heat softenable material being softened upon heat generated by said resistive means reaching a predetermined limit thereby causing said second end of said switch member to move free of said second conductive means.
- a thermal switch according to claim 1 wherein said switch member comprises an arcuate shape in its normally open position.
- a thermal switch according to claim 1 wherein said resistive means is disposed on another surface means opposite to said surface means on which said switch member is located and a central portion of said resistive means is disposed in alignment with said heatsoftenable material.
Abstract
A thermal switch is provided on an insulating support member which includes conductive means carried thereby with two of the conductive means defining stationary contact means at ends thereof spaced from each other. Movable contact means has one end secured to one of the stationary contact means and the free end thereof extends over the other of the stationary contact means. Resistive means has one end connected to one of the two of the conductive means and another end connected to a further conductive means. Means is provided between the stationary contact means and the free end of the movable contact means maintaining the contact means in electrical engagement and to cause the contact means to become disengaged when the heat generated by the resistive means exceeds a predetermined limit.
Description
United States Patent 1 Zandonatti 1 1 Oct. 2, 1973 THERMAL SWITCH Primary Examiner-Harold Broome [75] lnventor: Raymond A. Zandonatti, Beaverton, La Rue 57 ABSTRACT [73] Assignee: Tektronix, Inc., Beaverton, Oreg. I
A thermal switch is provided on an insulating support [22] Fled: 1972 member which includes conductive means carried 2 APP] 22 09 thereby with two of the conductive means defining stationary contact means at ends thereof spaced from each other. Movable contact means has one end se- [52] [1.8. CI. 337/404, 337/407 cured to one of the stationary Contact means and the [51] Int. Cl. H0lh 37/76 free end thereof extends over the other of the station [58] Field of Search 337/403, 401, 404, my Contact means Resistive means has one end eoh 337/405, 406, 0 nected to one of the two of the conductive means and another end connected to a further conductive means. [56] References Cited Means is provided between the stationary contact UNlTED STATES PATENTS means and the free end of the movable contact means 530 430 2 g94 Klein 337/403 maintaining the contact means in electrical engage- 2,548,491 4/1951 Peek, Jr. 337/184 ment and to cause the contact means'to become disen- 1',398,153 11/1921 Reichard... 337/404 gaged when the heat generated by the resistive means 3,301,981 H1967 Urani .1 337/404 exceeds a predetermined limit 8 Claims, 5 Drawing Figures THERMAL SWITCH BACKGROUND OF THE INVENTION Electronic circuitry is typically utilized for testing purposes and it will operate within prescribed voltage limits. In using such circuitry, operators will inadvertently apply the circuitry to voltage areas in excess of the prescribed voltage limits and this will of course damage the circuitry thereby rendering the testing device incapable of further use and requiring its replacement.
One way to protect electrical circuitry is to use a fuse, but it will have to be replaced if it blows. This is expensive and time consuming as well as too large for thick film circuits.
Another way to protect electrical circuitry is to use a bimetallic member which will open the circuit when the current exceeds a certain value. Use of bimetallic members is expensive.
The present invention overcomes these drawbacks by providing a thermal switch in circuitry which will open the circuit when a predetermined temperature is reached which is determined by the current flowing therein and it can be closed again thereby enabling the circuitry to be reused.
An object of the present invention is to provide a thermal switch in an electronic or electrical circuit which will open when the current exceeds a predetermined level.
Another object of the present invention is a thermal switch for an electrical or electronic circuit which can be closed again without replacing any parts.
A further object of the present invention is the provision of a thermal switch which precisely operates at a predetermined temperature.
An additional object of the present invention is to provide a thermal switch that is inexpensive for use in connection with electrical or electronic circuitry.
A still further object of the present invention is a thermal switch having the central portion of resistor means disposed in close proximity to the low melting point solder which maintains the movable contact means in electrical engagement with the stationary contact means.
BRIEF DESCRIPTION OF DRAWINGS Other objects and advantages of the present invention will be apparent from the detailed description of preferred embodiments thereof and from the attached drawings of which:
FIG. I is a top plan view of a part of a substrate on which a thermal switch is located;
FIG. 2 is a side elevational view of FIG. 1 with the movable contact member in the open position;
FIG. 3 is a top plan view of an alternative embodiment of the invention;
FIG. 4 is a top plan view of a further embodiment of the invention; and
FIG. 5 is a view taken along lines 5 5 of FIG. 4.
DETAILED DESCRIPTION OF PREFERRED AND OTHER EMBODIMENTS The present invention is described in conjunction with a hybrid solid state circuit, but it is to be understood that the invention can be used on macrominiature circuits, etched circuit board circuitry and other circuitry of this general construction.
Turning now to FIGS. I and 2, a substrate I is shown which is generally made of aluminum oxide or some suitable dielectric material. Conductive members 2, 3 and 4 are carried by substrate 11. Conductive members 2 and 4 are connected to other components and other conductive members would be located on substrate 1 and these are not shown in the interest of brevity as well as not being essential to the invention. Ends of conductive members 2 and 3 are spaced from each other and they are bridged by a switch member 5 having one end secured to either end of conductive members 2 or 3 via welding or in any other conventional manner.
As can be discerned from FIG. 2, switch member 5 is shown in its open position and it is made from a suitable material having spring characteristics which is initially formed having an arcuate configuration. The material from which switch member 5 can be made is generally beryllium copper, phosphor bronze, silicon bronze, steel, or any other conductive material having the desirable spring characteristics.
A resistor 7 is connected between a section 8 of conductive member 3 and an end of conductive member 4 and its center is disposed in close proximity to the soldered end of the switch means and the reason for this is that the hotest point of the resistor 7 is at or about its center and this will direct the heat right at the soldered end. It is desired that substrate l have proper thermal conductivity to conduct the heat being generated by resistor 7 toward solder 6.
In operation, the switch means is closed by soldering the free end of switch member 5 to the end of conducrent passing therethrough and resistor 7 remains at or below a predetermined level, solder 6 will not melt and normal circuit operation will continue.
If the current exceeds the predetermined level, the heat being generated by resistor 7 causes the solder 6 to melt and the switch means opens due to its spring characteristics thereby preventing any damage to the circuitry on substrate )1. In order to reestablish the circuit, the solder 6 is reheated and the free end of switch member 5 is resoldered onto the end of conductive member 2 or 3 and the circuitry can be reused without having to be replaced. Thus, the switch means and the resistor in series therewith constitute a reuseable thermal switch means to prevent excessive voltages from permanently damaging electrical circuitry means.
FIG. 3 illustrates an alternative embodiment of the thermal switch wherein resistor 7a is disposed under switch member 5a and a thin piece of electrically insulating material 9 is secured over the central portion of resistor 7a in order to prevent any shorting between switch member 5a and resistor 71;. As can be discerned, the center of resistor 7a is positioned in close proximity to the soldered end of switch member 5a.
FIGS. 4 and 5 illustrate another embodiment of the invention wherein conductive member 3b extends through opening in substrate 1b and has a section 8b extending along the bottom surface of substrate 1b in alignment with conductive member 3b. Resistor 7b connects conductive member 4b with section 8b, and it is disposed in alignment with switch section Sb which connects conductive members 2b and 3b so that the central portion of resistor 7b is disposed in close proximity to the soldered end.
While there have been shown and described embodiments of the present invention, it will be apparent to those skilled in the art that many changes and modifications may be made without departing from the broader aspects of the invention; therefore, it is intended that the appended claims cover all such changes and modifications as fall within the true spirit and scope of the present invention.
The invention is claimed in accordance with the following:
1. A thermal switch comprising:
a hybrid solid state means including a substrate of dielectric materialhaving first, second and third conductive means secured on surface means thereof; a switch member of resilient material having a first end secured to said first conductive means and a second end disposed along said second conductive means; I
electrically conductive heat-softenable material securing said second end of said switch member to said second conductive means; and
resistive means having one end connected to said third conductive means and another end connected to said first or second conductive means and being disposed adjacent said switch member, said electrically conductive heat softenable material being softened upon heat generated by said resistive means reaching a predetermined limit thereby causing said second end of said switch member to move free of said second conductive means.
2. A thermal switch according to claim 1 wherein said switch member comprises an arcuate shape in its normally open position.
3. A thermal switch according to claim 1 wherein said resistive means has its central section disposed adjacent and in alignment with said heat-softenable material.
4. A thermal switch according to claim 1 wherein said resistive means extends parallel with respect to said switch member and the central portion of said resistive means is disposed adjacent said heat-softenable material.
5. A thermal switch according to claim 1 wherein said resistive means is disposed under said switch member and the central portion of said resistive means is disposed adjacent said heat-softenable material.
6. A thermal switch according to claim 5 wherein insulative means is disposed between said switch member and said resistive means.
7. A thermal switch according to claim 5 wherein said resistive means extends at a right angle with respect to said switch member.
8. A thermal switch according to claim 1 wherein said resistive means is disposed on another surface means opposite to said surface means on which said switch member is located and a central portion of said resistive means is disposed in alignment with said heatsoftenable material.
Claims (8)
1. A thermal switch comprising: a hybrid solid state means including a substrate of dielectric material having first, second and third conductive means secured on surface means thereof; a switch member of resilient material having a first end secured to said first conductive means and a second end disposed along said second conductive means; electrically conductive heat-softenable material securing said second end of said switch member to said second conductive means; and resistive means having one end connected to said third conductive means and another end connected to said first or second conductive means and being disposed adjacent said switch member, said electrically conductive heat softenable material being softened upon heat generated by said resistive means reaching a predetermined limit thereby causing said second end of said switch member to move free of said second conductive means.
2. A thermal switch according to claim 1 wherein said switch member comprises an arcuate shape in its normally open position.
3. A thermal switch according to claim 1 wherein said resistive means has its central section disposed adjacent and in alignment with said heat-softenable material.
4. A thermal switch according to claim 1 wherein said resistive means extends parallel with respect to said switch member and the central portion of said resistive means is disposed adjacent said heat-softenable material.
5. A thermal switch according to claim 1 wherein said resistive means is disposed under said switch member and the central portion of said resistive means is disposed adjacent said heat-softenable material.
6. A thermal switch according to claim 5 wherein insulative means is disposed between said switch member and said resistive means.
7. A thermal switch according to claim 5 wherein said resistive means extends at a right angle with respect to said switch member.
8. A thermal switch according to claim 1 wherein said resistive means is disposed on another surface means opposite to said surface means on which said switch member is located and a central portion of said resistive means is disposed in alignment with said heat-softenable material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22809772A | 1972-02-22 | 1972-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3763454A true US3763454A (en) | 1973-10-02 |
Family
ID=22855775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00228097A Expired - Lifetime US3763454A (en) | 1972-02-22 | 1972-02-22 | Thermal switch |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3763454A (en) |
| JP (2) | JPS4897064A (en) |
Cited By (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4423401A (en) * | 1982-07-21 | 1983-12-27 | Tektronix, Inc. | Thin-film electrothermal device |
| DE3234826A1 (en) * | 1982-09-21 | 1984-03-22 | Loewe Opta Gmbh, 8640 Kronach | Thermal fuse element |
| US4494104A (en) * | 1983-07-18 | 1985-01-15 | Northern Telecom Limited | Thermal Fuse |
| EP0188695A1 (en) * | 1984-12-27 | 1986-07-30 | Siemens Aktiengesellschaft | Board carrying a switching arrangement with at least one conductor in the form of a layer |
| EP0352771A2 (en) * | 1988-07-28 | 1990-01-31 | Siemens Aktiengesellschaft | Fuse with a spring arm |
| US5084691A (en) * | 1990-10-01 | 1992-01-28 | Motorola, Inc. | Controllable fuse |
| US5192937A (en) * | 1990-12-24 | 1993-03-09 | Dong A Electric Parts Co., Ltd. | Resistance unit for motor speed control |
| EP0562438A1 (en) * | 1992-03-24 | 1993-09-29 | ROEDERSTEIN SPEZIALFABRIKEN FÜR BAUELEMENTE DER ELEKTRONIK UND KONDENSATOREN DER STARKSTROMTECHNIK GmbH | SDM type thermal protector |
| WO1994003913A1 (en) * | 1992-08-07 | 1994-02-17 | Siemens Aktiengesellschaft | Thermal cut-out and process for activating it |
| US5303402A (en) * | 1992-03-09 | 1994-04-12 | Motorola, Inc. | Electrically isolated metal mask programming using a polysilicon fuse |
| US5363083A (en) * | 1992-06-12 | 1994-11-08 | Roederstein Spezialfabriken Fuer Bauelemente Der Elektronik Und Kondensatoren Der Starkstromtechnik Gmbh. | Temperature responsive, electric overcurrent protection module |
| US5612662A (en) * | 1995-02-07 | 1997-03-18 | Siemens Aktiengesellschaft | Thermal fuse and method for its activation |
| US5793274A (en) * | 1996-11-01 | 1998-08-11 | Bourns, Inc. | Surface mount fusing device |
| US6198184B1 (en) * | 1997-01-10 | 2001-03-06 | Zexel Corporation | Brushless motor |
| EP1120888A1 (en) * | 1998-09-28 | 2001-08-01 | Zexel Valeo Climate Control Corporation | Brushless motor |
| US6342827B1 (en) * | 1997-07-02 | 2002-01-29 | Tyco Electronics Logistics Ag | Thermal fuse for fixing on a circuit substrate |
| US6348851B1 (en) * | 1998-08-14 | 2002-02-19 | Renata A.G. | Breaker switch and battery including the same |
| US6445276B2 (en) * | 1998-03-04 | 2002-09-03 | Trw Automotive Electronics & Components Gmbh & Co. Kg | Electrical fuse for use in motor vehicles |
| US6664885B2 (en) * | 2001-08-31 | 2003-12-16 | Adc Telecommunications, Inc. | Thermally activated latch |
| US20050062577A1 (en) * | 2001-08-30 | 2005-03-24 | Manfred Rupalla | Method for producing a protective component using an adjusted time response of the thermal transmission from a heating element to a fusible element |
| DE10356788A1 (en) * | 2003-12-04 | 2005-07-07 | BSH Bosch und Siemens Hausgeräte GmbH | Safety device for a heater, heater and water heater |
| US20080073438A1 (en) * | 2004-06-30 | 2008-03-27 | Gsi Group Corporation | Laser-based method and system for processing targeted surface material and article produced thereby |
| US20090027156A1 (en) * | 2005-03-31 | 2009-01-29 | Roberto Schlenker | Electronic Assembly |
| US20100045421A1 (en) * | 2006-09-01 | 2010-02-25 | Alexander Dauth | Electric Circuit With Thermal-Mechanical Fuse |
| US20100277268A1 (en) * | 2008-01-10 | 2010-11-04 | Peter Ireman | Thermal safety device |
| US20100328017A1 (en) * | 2009-06-30 | 2010-12-30 | Chin-Chi Yang | Current and temperature overloading protection device |
| US20110050386A1 (en) * | 2005-03-31 | 2011-03-03 | Roberto Schlenker | Electronic Assembly Having Stressable Contact Bridge with Fuse Function |
| US20110121936A1 (en) * | 2009-11-24 | 2011-05-26 | Littelfuse, Inc. | Circuit protection device |
| US20110211284A1 (en) * | 2008-04-21 | 2011-09-01 | Sony Chemical & Information Device Corporation | Protective element and method for producing the same |
| US20120194315A1 (en) * | 2011-02-02 | 2012-08-02 | Matthiesen Martyn A | Three-Function Reflowable Circuit Protection Device |
| CN102771036A (en) * | 2010-02-23 | 2012-11-07 | 博泽沃尔兹堡汽车零部件有限公司 | Electric motor for driving a motor vehicle component |
| US20130200984A1 (en) * | 2011-08-12 | 2013-08-08 | Tyco Electronics Corporation | Reflowable Circuit Protection Device |
| US20140158334A1 (en) * | 2011-06-22 | 2014-06-12 | Commissariat A L'energie Atomique Et Aux Ene Alt | Thermal management system with variable-volume material |
| DE102012025110A1 (en) * | 2012-12-21 | 2014-06-26 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Thermal overload protection structure of electromotor, has spring element that is designed like plate spring, such that spring ends of spring element are pre-mounted and electrically insulated with each other |
| US20140232511A1 (en) * | 2011-08-03 | 2014-08-21 | Phoenix Contact Gmbh & Co. Kg | Thermal overload protection apparatus |
| US20150022310A1 (en) * | 2013-07-19 | 2015-01-22 | Infineon Technologies Ag | Fuse arrangement and a method for manufacturing a fuse arrangement |
| US8941461B2 (en) | 2011-02-02 | 2015-01-27 | Tyco Electronics Corporation | Three-function reflowable circuit protection device |
| US20150044131A1 (en) * | 2012-03-23 | 2015-02-12 | Intelligent Energy Inc. | Hydrogen producing fuel cartridge and methods for producing hydrogen |
| US20150206679A1 (en) * | 2014-01-23 | 2015-07-23 | Johnson Electric S.A. | Voltage controller for an electric fan |
| US20160049275A1 (en) * | 2014-08-18 | 2016-02-18 | Borgwarner Ludwigsburg Gmbh | Fuse for an electrical circuit and printed circuit board having a fuse |
| US9276278B2 (en) | 2012-03-23 | 2016-03-01 | Intelligent Energy Limited | Hydrogen producing fuel cartridge |
| US20170276115A1 (en) * | 2016-03-23 | 2017-09-28 | Magna Electronics Inc. | Control device with thermal fuse having removable pre-tension element |
| US10269523B2 (en) * | 2012-03-29 | 2019-04-23 | Dexerials Corporation | Protection element |
| US11239039B2 (en) * | 2017-10-27 | 2022-02-01 | Auto-Kabel Management Gmbh | Electric fuse element, and method for operating an electric fuse element |
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| US530430A (en) * | 1894-12-04 | Thermal circuit-breaker | ||
| US1398153A (en) * | 1921-03-03 | 1921-11-22 | Walter V Reichard | Thermal circuit-closer |
| US2548491A (en) * | 1950-01-28 | 1951-04-10 | Sylvania Electric Prod | Low-current fuse |
| US3301981A (en) * | 1966-01-28 | 1967-01-31 | Mc Graw Edison Co | Protectors for electric circuits |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5029717U (en) * | 1973-07-12 | 1975-04-03 |
-
1972
- 1972-02-22 US US00228097A patent/US3763454A/en not_active Expired - Lifetime
-
1973
- 1973-02-19 JP JP48020090A patent/JPS4897064A/ja active Pending
-
1979
- 1979-11-05 JP JP1979153559U patent/JPS5565732U/ja active Pending
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| US530430A (en) * | 1894-12-04 | Thermal circuit-breaker | ||
| US1398153A (en) * | 1921-03-03 | 1921-11-22 | Walter V Reichard | Thermal circuit-closer |
| US2548491A (en) * | 1950-01-28 | 1951-04-10 | Sylvania Electric Prod | Low-current fuse |
| US3301981A (en) * | 1966-01-28 | 1967-01-31 | Mc Graw Edison Co | Protectors for electric circuits |
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|---|---|---|---|---|
| JPH0213411B2 (en) * | 1982-07-21 | 1990-04-04 | Tektronix Inc | |
| JPS5973826A (en) * | 1982-07-21 | 1984-04-26 | テクトロニツクス・インコーポレイテツド | Thin film electrothermal moving device |
| US4423401A (en) * | 1982-07-21 | 1983-12-27 | Tektronix, Inc. | Thin-film electrothermal device |
| DE3234826A1 (en) * | 1982-09-21 | 1984-03-22 | Loewe Opta Gmbh, 8640 Kronach | Thermal fuse element |
| US4494104A (en) * | 1983-07-18 | 1985-01-15 | Northern Telecom Limited | Thermal Fuse |
| EP0188695A1 (en) * | 1984-12-27 | 1986-07-30 | Siemens Aktiengesellschaft | Board carrying a switching arrangement with at least one conductor in the form of a layer |
| EP0352771A2 (en) * | 1988-07-28 | 1990-01-31 | Siemens Aktiengesellschaft | Fuse with a spring arm |
| EP0352771A3 (en) * | 1988-07-28 | 1991-11-13 | Siemens Aktiengesellschaft | Fuse with a spring arm |
| US5084691A (en) * | 1990-10-01 | 1992-01-28 | Motorola, Inc. | Controllable fuse |
| US5192937A (en) * | 1990-12-24 | 1993-03-09 | Dong A Electric Parts Co., Ltd. | Resistance unit for motor speed control |
| US5303402A (en) * | 1992-03-09 | 1994-04-12 | Motorola, Inc. | Electrically isolated metal mask programming using a polysilicon fuse |
| EP0562438A1 (en) * | 1992-03-24 | 1993-09-29 | ROEDERSTEIN SPEZIALFABRIKEN FÜR BAUELEMENTE DER ELEKTRONIK UND KONDENSATOREN DER STARKSTROMTECHNIK GmbH | SDM type thermal protector |
| US5363083A (en) * | 1992-06-12 | 1994-11-08 | Roederstein Spezialfabriken Fuer Bauelemente Der Elektronik Und Kondensatoren Der Starkstromtechnik Gmbh. | Temperature responsive, electric overcurrent protection module |
| WO1994003913A1 (en) * | 1992-08-07 | 1994-02-17 | Siemens Aktiengesellschaft | Thermal cut-out and process for activating it |
| US5612662A (en) * | 1995-02-07 | 1997-03-18 | Siemens Aktiengesellschaft | Thermal fuse and method for its activation |
| US5793274A (en) * | 1996-11-01 | 1998-08-11 | Bourns, Inc. | Surface mount fusing device |
| US6198184B1 (en) * | 1997-01-10 | 2001-03-06 | Zexel Corporation | Brushless motor |
| US6342827B1 (en) * | 1997-07-02 | 2002-01-29 | Tyco Electronics Logistics Ag | Thermal fuse for fixing on a circuit substrate |
| US6445276B2 (en) * | 1998-03-04 | 2002-09-03 | Trw Automotive Electronics & Components Gmbh & Co. Kg | Electrical fuse for use in motor vehicles |
| US6348851B1 (en) * | 1998-08-14 | 2002-02-19 | Renata A.G. | Breaker switch and battery including the same |
| EP1120888A4 (en) * | 1998-09-28 | 2002-11-06 | Zexel Valeo Climate Contr Corp | Brushless motor |
| EP1120888A1 (en) * | 1998-09-28 | 2001-08-01 | Zexel Valeo Climate Control Corporation | Brushless motor |
| US20050062577A1 (en) * | 2001-08-30 | 2005-03-24 | Manfred Rupalla | Method for producing a protective component using an adjusted time response of the thermal transmission from a heating element to a fusible element |
| US7265653B2 (en) * | 2001-08-30 | 2007-09-04 | Wickmann-Werke Gmbh | Method of providing a protective component with an adjusted time characteristic of the thermal transfer from a heating element to a fusible element |
| US6664885B2 (en) * | 2001-08-31 | 2003-12-16 | Adc Telecommunications, Inc. | Thermally activated latch |
| DE10356788A1 (en) * | 2003-12-04 | 2005-07-07 | BSH Bosch und Siemens Hausgeräte GmbH | Safety device for a heater, heater and water heater |
| US20080073438A1 (en) * | 2004-06-30 | 2008-03-27 | Gsi Group Corporation | Laser-based method and system for processing targeted surface material and article produced thereby |
| US7469831B2 (en) | 2004-06-30 | 2008-12-30 | Gsi Group Corporation | Laser-based method and system for processing targeted surface material and article produced thereby |
| US20110050386A1 (en) * | 2005-03-31 | 2011-03-03 | Roberto Schlenker | Electronic Assembly Having Stressable Contact Bridge with Fuse Function |
| US7864024B2 (en) * | 2005-03-31 | 2011-01-04 | Conti Temic Microelectronic Gmbh | Electronic assembly having spring-loaded contact bridge with fuse function |
| US20090027156A1 (en) * | 2005-03-31 | 2009-01-29 | Roberto Schlenker | Electronic Assembly |
| US8665057B2 (en) | 2005-03-31 | 2014-03-04 | Conti Temic Microelectronic Gmbh | Electronic assembly having stressable contact bridge with fuse function |
| US20100045421A1 (en) * | 2006-09-01 | 2010-02-25 | Alexander Dauth | Electric Circuit With Thermal-Mechanical Fuse |
| US7911314B2 (en) * | 2006-09-01 | 2011-03-22 | Alexander Dauth | Electric circuit with thermal-mechanical fuse |
| US20100277268A1 (en) * | 2008-01-10 | 2010-11-04 | Peter Ireman | Thermal safety device |
| US8767368B2 (en) * | 2008-04-21 | 2014-07-01 | Dexerials Corporation | Protective element and method for producing the same |
| US20110211284A1 (en) * | 2008-04-21 | 2011-09-01 | Sony Chemical & Information Device Corporation | Protective element and method for producing the same |
| US8143991B2 (en) * | 2009-06-30 | 2012-03-27 | Chin-Chi Yang | Current and temperature overloading protection device |
| US20100328017A1 (en) * | 2009-06-30 | 2010-12-30 | Chin-Chi Yang | Current and temperature overloading protection device |
| US8531263B2 (en) * | 2009-11-24 | 2013-09-10 | Littelfuse, Inc. | Circuit protection device |
| US20110121936A1 (en) * | 2009-11-24 | 2011-05-26 | Littelfuse, Inc. | Circuit protection device |
| CN102771036B (en) * | 2010-02-23 | 2015-01-21 | 博泽沃尔兹堡汽车零部件有限公司 | Electric motor for driving a motor vehicle component |
| CN102771036A (en) * | 2010-02-23 | 2012-11-07 | 博泽沃尔兹堡汽车零部件有限公司 | Electric motor for driving a motor vehicle component |
| US8941461B2 (en) | 2011-02-02 | 2015-01-27 | Tyco Electronics Corporation | Three-function reflowable circuit protection device |
| US20120194315A1 (en) * | 2011-02-02 | 2012-08-02 | Matthiesen Martyn A | Three-Function Reflowable Circuit Protection Device |
| US9455106B2 (en) * | 2011-02-02 | 2016-09-27 | Littelfuse, Inc. | Three-function reflowable circuit protection device |
| US20140158334A1 (en) * | 2011-06-22 | 2014-06-12 | Commissariat A L'energie Atomique Et Aux Ene Alt | Thermal management system with variable-volume material |
| US20140232511A1 (en) * | 2011-08-03 | 2014-08-21 | Phoenix Contact Gmbh & Co. Kg | Thermal overload protection apparatus |
| US20130200984A1 (en) * | 2011-08-12 | 2013-08-08 | Tyco Electronics Corporation | Reflowable Circuit Protection Device |
| US9620318B2 (en) * | 2011-08-12 | 2017-04-11 | Littlefuse, Inc. | Reflowable circuit protection device |
| US20150044131A1 (en) * | 2012-03-23 | 2015-02-12 | Intelligent Energy Inc. | Hydrogen producing fuel cartridge and methods for producing hydrogen |
| US9825316B2 (en) | 2012-03-23 | 2017-11-21 | Intelligent Energy Limited | Hydrogen producing fuel cartridge and methods for producing hydrogen |
| US9266728B2 (en) * | 2012-03-23 | 2016-02-23 | Intelligent Energy Limited | Hydrogen producing fuel cartridge and methods for producing hydrogen |
| US9276278B2 (en) | 2012-03-23 | 2016-03-01 | Intelligent Energy Limited | Hydrogen producing fuel cartridge |
| US10269523B2 (en) * | 2012-03-29 | 2019-04-23 | Dexerials Corporation | Protection element |
| DE102012025110A1 (en) * | 2012-12-21 | 2014-06-26 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Thermal overload protection structure of electromotor, has spring element that is designed like plate spring, such that spring ends of spring element are pre-mounted and electrically insulated with each other |
| US9524844B2 (en) * | 2013-07-19 | 2016-12-20 | Infineon Technologies Ag | Fuse arrangement and a method for manufacturing a fuse arrangement |
| US20150022310A1 (en) * | 2013-07-19 | 2015-01-22 | Infineon Technologies Ag | Fuse arrangement and a method for manufacturing a fuse arrangement |
| US20150206679A1 (en) * | 2014-01-23 | 2015-07-23 | Johnson Electric S.A. | Voltage controller for an electric fan |
| US20160049275A1 (en) * | 2014-08-18 | 2016-02-18 | Borgwarner Ludwigsburg Gmbh | Fuse for an electrical circuit and printed circuit board having a fuse |
| US9620321B2 (en) * | 2014-08-18 | 2017-04-11 | Borgwarner Ludwigsburg Gmbh | Fuse for an electrical circuit and printed circuit board having a fuse |
| US20170276115A1 (en) * | 2016-03-23 | 2017-09-28 | Magna Electronics Inc. | Control device with thermal fuse having removable pre-tension element |
| US10151292B2 (en) * | 2016-03-23 | 2018-12-11 | Magna Electronics Inc. | Control device with thermal fuse having removable pre-tension element |
| US11239039B2 (en) * | 2017-10-27 | 2022-02-01 | Auto-Kabel Management Gmbh | Electric fuse element, and method for operating an electric fuse element |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4897064A (en) | 1973-12-11 |
| JPS5565732U (en) | 1980-05-07 |
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