CN100516903C - Detecting clamping fixture of de-to-ac converter - Google Patents
Detecting clamping fixture of de-to-ac converter Download PDFInfo
- Publication number
- CN100516903C CN100516903C CNB2005101005770A CN200510100577A CN100516903C CN 100516903 C CN100516903 C CN 100516903C CN B2005101005770 A CNB2005101005770 A CN B2005101005770A CN 200510100577 A CN200510100577 A CN 200510100577A CN 100516903 C CN100516903 C CN 100516903C
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- converter
- clamping fixture
- detecting clamping
- fixture
- inverter
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Abstract
A de-to-ac converter test control device is disclosed that is used to ancillary proof the property of the dc/ac converter. Said de-to-ac converter contains a input interface and a output interface, said de-to-ac converter test control device includes a conversion device and several artificial load; said conversion device contains a plated printed circuit, a switch and a incoming connector, said plated printed circuit is electric connected with a test facility and said incoming connector, said incoming connector is electric connected with the input interface of the said de-to-ac converter, said artificial load in contacted to the output interface of said de-to-ac converter, the on-off of current which gates through said artificial load is controlled by the electric connection between said switch and the plated printed circuit. The applying of the test control device can test the property of the dc/ac converter accurately and effectively to improve the testing efficiency.
Description
[technical field]
The present invention relates to a kind of measurement jig, particularly a kind of in order to assist the checking direct current to deliver the detecting clamping fixture of de-to-ac converter of stream inverter performance.
[background technology]
Universal day by day along with LCD products such as liquid crystal panel, LCD and LCD TV, various some lamp apparatus role in liquid crystal electric equipment luminescence process also becomes more and more important; The same with the some lamp apparatus in the family expenses illumination daylight lamp, when lighting a lamp equipment work, need have higher AC starting voltage to make its operate as normal, and conventional power supply can't satisfy above-mentioned trigger voltage needs.In mobile communication equipments such as mobile phone, computer, supply voltage on the mainboard is the little level DC voltages such as 5V, 3.3V of regulation and stipulation normally, a lamp apparatus is normally started, so industry provides drive signal to drive the need of work that the lamp unit satisfies above-mentioned some lamp apparatus by design the AC inverter that circulates always.The main effect of above-mentioned inverter is the high alternating voltage that little DC voltage is converted to energy start-up point lamp apparatus.In order to ensure a lamp apparatus operate as normal, the inverter to described different model carries out also just seeming extremely important such as the performance test checking of electrical safety, permanent life-span and the various aspects such as quality of lighting a lamp in advance.
The testing authentication of present above-mentioned inverter is mainly controlled a special inverter testing apparatus by the inverter characteristics proving program of computing machine special setting and is carried out.The thin wire at each pin place of the direct clamping inverter of described testing apparatus according to inverter test specification and Computer Validation Program regulation, is opened computing machine dependence test program and described inverter testing apparatus switch can carry out testing authentication to inverter.
But in above-mentioned testing authentication process,,, cause mistake to survey and erroneous judgement so be prone to loose contact because the line footpath of inverter interface pin lead-in wire is very tiny; Carry out inverter test at every turn and all will weld corresponding load end, carry out the test of inverter no-load characteristic measurement and open-circuit voltage and need pull out corresponding load end and also cause waste of time, directly influence the accuracy and the efficient of integrated testability.
[summary of the invention]
In view of above content, be necessary to provide a kind of detecting clamping fixture of de-to-ac converter that is used for improving inverter testing efficiency and testing precision.
A kind of detecting clamping fixture of de-to-ac converter, be used for the aided verification direct current deliver stream inverter performance, described inverter comprises an input interface and an output interface, described detecting clamping fixture of de-to-ac converter comprises a conversion equipment and some fictitious loads; Described conversion equipment comprises a printed circuit board (PCB), a switch and an input terminal, described printed circuit board (PCB) electrically connects a testing apparatus and described input terminal, the input interface of described input terminal and described inverter is electrically connected, described fictitious load is connected to the output interface of described inverter, and described switch and described printed circuit board (PCB) electrically connect the break-make of controlling by the electric current of described fictitious load.
Compare prior art, described detecting clamping fixture of de-to-ac converter is used the interface that a conversion equipment will this tested inverter and is well contacted with the test clip of testing apparatus, utilizes the no-load voltage of the convenient test of described switch inverter, thereby improved work efficiency, reduced testing expense.
[description of drawings]
The present invention is further illustrated below in conjunction with the drawings and the specific embodiments.
Fig. 1 is the three-dimensional exploded view of detecting clamping fixture of de-to-ac converter better embodiment of the present invention and inverter.
Fig. 2 is the user mode figure of detecting clamping fixture of de-to-ac converter better embodiment of the present invention.
[embodiment]
See also Fig. 1 and Fig. 2, detecting clamping fixture of de-to-ac converter of the present invention is used for aided verification one can be with the performance of the inverter 100 of converting direct-current voltage into alternating-current voltage.This inverter 100 comprises an input interface 120 and an output interface 122, and described output interface 122 is provided with two stitch lead-in wire 124 and 126.The pin of 124 correspondences that wherein go between is a positive voltage output end, and the pin of 126 correspondences that go between is the negative voltage output terminal.The better embodiment of described detecting clamping fixture of de-to-ac converter comprises a conversion equipment 10, some fictitious loads 20, an installing plate 30, a heat abstractor 40, a support 50, some first fixtures 60, some second fixtures 70 and some pads 80.
This conversion equipment 10 comprises a printed circuit board (PCB) 12, one and this printed circuit board (PCB) 12 switch 16 and the input terminal 18 that are electrically connected.This printed circuit board (PCB) 12 is established relevant trace, and these traces weld some connecting bridges 14 by the wiring requirement of inverter 100 input interfaces 120 in this printed circuit board (PCB) 12 back sides correspondence.The stitch of this input terminal 18 is welded in respective traces on this printed circuit board (PCB) 12 by some thin wires 19.
These fictitious loads 20 are some cement resistors, and these fictitious loads 20 are connected in series by lead 22.
Establish a through hole 34 respectively for four jiaos of this installing plate 30.One end of described conversion equipment 10 and each fictitious load 20 all are fixed in described installing plate 30.
This heat abstractor 40 comprises a small-sized fans 42 and a power interface 44.
This support 50 comprises pair of L type fixture 52.Described each fixture 52 includes a sidewall 54 and a roof 56.The respective through hole 34 of the corresponding described installing plate 30 in two side angle bottoms of described sidewall 54 is established a screw 55 respectively.
These first fixtures 60 are that some can the bolt of corresponding screw lock in the screw 55 of described sidewall 54.
These second fixtures 70 comprise a bolt 72 and a nut 74 respectively.These pads 80 are and described second fixture, 70 matching used circular ring metal thin slices.
When assembling described detecting clamping fixture of de-to-ac converter, described second fixture 70 and described pad 80 secure to described installing plate 30 with ends of described conversion equipment 10 jointly; Described fictitious load 20 usefulness scolding tin are welded in described installing plate 30, and wherein a fictitious load 20 1 ends are electrically connected a positive electrode binding clip 24, the other end directly connect or be connected in a negative electrode binding clip 26 after other fictitious load 20 is connected; Described heat abstractor 40 is fixed in two roofs, the 56 below medial margins of described L type fixture 52, and in this better embodiment, this heat abstractor 40 is for being pasted on described roof 56.Described two L type fixtures 52 are positioned over the lateral border of 30 liang of opposite side of described installing plate respectively, described first fixture 60 is corresponding respectively to be passed in the 30 4 jiaos of through holes located 34 of this installing plate and the screw 55 of screw lock on described sidewall 54, thereby described two L type fixtures 52 are fixed in described installing plate 30, described fan 42 can be dispelled the heat to described fictitious load 20.
Before test job begins, the input terminal 18 of described conversion equipment 10 connects the input interface 120 of this inverter 100, corresponding clip is to the two stitch lead-in wire 124 and 126 of the output interface 122 of this inverter 100 respectively for described positive and negative binding clip 24,26, and the power interface 44 of described heat abstractor 40 connects power supply.Corresponding connecting bridge 14 with the described printed circuit board (PCB) of corresponding test clip clamping 12 back sides of an inverter testing apparatus.After finishing above-mentioned steps, open the power switch of computer dependence test program and this inverter testing apparatus, close the power switch 16 on the described conversion equipment 10, can carry out the no-load voltage performance test to tested inverter 100 by this inverter testing apparatus; Open described power switch 16, can make things convenient for the related electric characteristic of inverter 100 under the test load situation; Test result can be presented on the display screen of described testing apparatus.Because fictitious load 20 can have the combination of a plurality of different resistances, so can satisfy different load testing demands.Simultaneously, because detecting clamping fixture of de-to-ac converter of the present invention uses cement resistor as fictitious load, cement resistor adstante febre impedance rate of change is very obvious, just can obtain test result more accurately to described fictitious load 20 heat radiations in test process so described heat abstractor 40 passes to power supply.
Claims (6)
1. detecting clamping fixture of de-to-ac converter is used for the aided verification direct current to deliver the performance of stream inverter, and described inverter comprises an input interface and an output interface, it is characterized in that: described detecting clamping fixture of de-to-ac converter comprises a conversion equipment and some fictitious loads; Described conversion equipment comprises a printed circuit board (PCB), a switch and an input terminal, described printed circuit board (PCB) electrically connects a testing apparatus and described input terminal, described input terminal can be electrically connected with the input interface of described inverter, described fictitious load can be connected to the output interface of described inverter, and described switch and described printed circuit board (PCB) electrically connect the break-make of controlling by the electric current of described fictitious load.
2. detecting clamping fixture of de-to-ac converter as claimed in claim 1 is characterized in that: described detecting clamping fixture of de-to-ac converter further comprises an installing plate, and described fictitious load is fixed in described installing plate.
3. detecting clamping fixture of de-to-ac converter as claimed in claim 2 is characterized in that: four jiaos of places of described installing plate establish a through hole respectively; Described detecting clamping fixture of de-to-ac converter also comprises a support and some first fixtures; Described support comprises pair of L type fixture, each described L type fixture includes a sidewall and a roof, the respective through hole of the corresponding described installing plate of two side angles of described sidewall is established a screw respectively, and corresponding respectively through hole and the screw of screw lock on described sidewall that passes four jiaos of places of described installing plate of described first fixture is fixed in described installing plate with described L type fixture.
4. detecting clamping fixture of de-to-ac converter as claimed in claim 3 is characterized in that: described output interface is provided with two stitch lead-in wire; Described fictitious load is connected in series, and wherein a fictitious load one end is electrically connected the positive electrode binding clip, the other end directly connect or be connected in the negative electrode binding clip after other fictitious load is connected; Described positive electrode binding clip, negative electrode binding clip be the two stitch lead-in wire of the described output interface of corresponding clamping respectively.
5. detecting clamping fixture of de-to-ac converter as claimed in claim 3 is characterized in that: described detecting clamping fixture of de-to-ac converter also comprises a heat abstractor, and described heat abstractor is fixed in described support.
6. detecting clamping fixture of de-to-ac converter as claimed in claim 5 is characterized in that: described heat abstractor is fixed in the below medial margin of described L type fixture roof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101005770A CN100516903C (en) | 2005-10-21 | 2005-10-21 | Detecting clamping fixture of de-to-ac converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101005770A CN100516903C (en) | 2005-10-21 | 2005-10-21 | Detecting clamping fixture of de-to-ac converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1952674A CN1952674A (en) | 2007-04-25 |
| CN100516903C true CN100516903C (en) | 2009-07-22 |
Family
ID=38059115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101005770A Expired - Fee Related CN100516903C (en) | 2005-10-21 | 2005-10-21 | Detecting clamping fixture of de-to-ac converter |
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| Country | Link |
|---|---|
| CN (1) | CN100516903C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305915A (en) * | 2011-07-29 | 2012-01-04 | 株洲南车时代电气股份有限公司 | Light load simulation testing apparatus for inverter and method thereof |
| CN102288923B (en) * | 2011-07-29 | 2013-08-28 | 株洲南车时代电气股份有限公司 | Current transformer module testing device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872102A (en) * | 1986-04-28 | 1989-10-03 | Dimensions Unlimited, Inc. | D.C. to A.C. inverter having improved structure providing improved thermal dissipation |
| US5206801A (en) * | 1991-09-18 | 1993-04-27 | Flick John R | Ac/dc converter fault detector |
| US5615102A (en) * | 1993-03-30 | 1997-03-25 | Mitsubishi Denki Kabushiki Kaisha | Inverter apparatus and method of operation therefor |
| CN1415118A (en) * | 2000-07-28 | 2003-04-30 | 住友电气工业株式会社 | Inverter |
| JP2004297919A (en) * | 2003-03-27 | 2004-10-21 | Mitsumi Electric Co Ltd | Ac-dc conversion device and packaging method for printed circuit board |
| CN1672850A (en) * | 2004-03-22 | 2005-09-28 | 上海广为杰士电源有限公司 | DC inverse arc welding machine |
-
2005
- 2005-10-21 CN CNB2005101005770A patent/CN100516903C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872102A (en) * | 1986-04-28 | 1989-10-03 | Dimensions Unlimited, Inc. | D.C. to A.C. inverter having improved structure providing improved thermal dissipation |
| US5206801A (en) * | 1991-09-18 | 1993-04-27 | Flick John R | Ac/dc converter fault detector |
| US5615102A (en) * | 1993-03-30 | 1997-03-25 | Mitsubishi Denki Kabushiki Kaisha | Inverter apparatus and method of operation therefor |
| CN1415118A (en) * | 2000-07-28 | 2003-04-30 | 住友电气工业株式会社 | Inverter |
| JP2004297919A (en) * | 2003-03-27 | 2004-10-21 | Mitsumi Electric Co Ltd | Ac-dc conversion device and packaging method for printed circuit board |
| CN1672850A (en) * | 2004-03-22 | 2005-09-28 | 上海广为杰士电源有限公司 | DC inverse arc welding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1952674A (en) | 2007-04-25 |
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Granted publication date: 20090722 Termination date: 20101021 |