CN107643496B - Power module testing device - Google Patents
Power module testing device Download PDFInfo
- Publication number
- CN107643496B CN107643496B CN201711052358.9A CN201711052358A CN107643496B CN 107643496 B CN107643496 B CN 107643496B CN 201711052358 A CN201711052358 A CN 201711052358A CN 107643496 B CN107643496 B CN 107643496B
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- probe
- circuit board
- power module
- fixedly connected
- power supply
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- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 239000000523 sample Substances 0.000 claims abstract description 62
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Testing Of Individual Semiconductor Devices (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention provides a power module testing device which comprises an insulation box, a circuit board and a stud, wherein the circuit board is fixedly connected in the insulation box through the stud, a plurality of probe sleeves matched with the contact positions of a power module are fixedly connected in the middle of the circuit board, a hollow mounting pin is fixedly connected at the upper end of each probe sleeve, a detachable probe is sleeved in each mounting pin, and the probe is inserted into each probe sleeve; the circuit board is also provided with two tri-state switches and a BNC connector, the tri-state switches are electrically connected with the probe sleeve at the input end of the power module, and the probe sleeve at the output end of the power module is electrically connected with the BNC connector; and the two sides of the probe sleeve are respectively provided with a pressing component used for limiting the movement of the power supply module. The probe is inserted into the probe sleeve in a detachable mode, after the tool is used for many times, the probe can be directly pulled out to be recovered under the condition that the plugging port of the probe is damaged or in poor contact, the whole tool is prevented from being scrapped, the time for maintaining the tool is shortened, and the scrapped condition of a circuit board is avoided.
Description
Technical Field
The invention relates to the field of power module testing, in particular to a power module testing device.
Background
The power module is a direct-current-to-direct-current product integrating the main functions of the power supply together, and the power conversion part is integrated with the power module without a high-efficiency wave circuit, so that the characteristic curve of the power module is required to be tested after the manufacturing is finished, and the normal use of the power module is ensured.
The existing tool is connected in a plugging mode when the power module is tested, the socket is deformed due to long-time use, poor contact is caused, the whole tool is scrapped, material is wasted, a circuit board is provided with electroplating components and is easy to pollute the environment, a plugging mode is adopted, a pressing mechanism is not designed to press the power module, the power module is caused to slide out after being carelessly touched in the testing process, testing reworking is caused, and testing efficiency is seriously affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a power module testing device, which solves the problems that the whole tool is scrapped and environmental pollution is easy to cause due to the fact that the plug interface of the existing testing tool is easy to damage.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the power module testing device comprises an insulation box, a circuit board and a stud fixedly connected to the corner of the circuit board, wherein the stud is fixedly connected to the middle part of the circuit board in the insulation box, a plurality of probe sleeves matched with the contact positions of a power module are fixedly connected to the middle part of the circuit board, a hollow mounting pin is fixedly connected to the upper end of each probe sleeve, a detachable probe is sleeved in each mounting pin, and the probe is inserted into each probe sleeve; the circuit board is also provided with two tristate switches and a BNC connector, the tristate switches are electrically connected with a probe sleeve at the input end of the power module, the probe sleeve at the output end of the power module is electrically connected with the BNC connector, one tristate switch controls the positive electrode of the power supply, and the other tristate switch controls the negative electrode of the power supply; and the two sides of the probe sleeve are respectively provided with a pressing component used for limiting the movement of the power supply module.
When the power supply module is used, the insulation box is opened firstly, the circuit board is exposed, the probe is inserted into the mounting pin and is directly inserted into the probe sleeve, the pins on the power supply module are inserted into the corresponding probes, the power supply module is communicated with the circuit board, and the two three-state switches are opened to supply power to the power supply module; the output pin of the power module is communicated with the BNC connector through the probe and the circuit board, and then is connected to the detection equipment through the BNC connector for detection. The replaceable probe is used for conducting electricity, after the replaceable probe is used for multiple times, the socket of the probe can be recovered after being damaged, and the scrapping condition of the whole tool is avoided.
Compared with the prior art, the invention has the following beneficial effects:
1. the probe is inserted into the probe sleeve in a detachable mode, after the tool is used for many times, the plugging port of the probe is damaged, and the probe can be directly pulled out for recovery after the situation of poor contact is caused, so that the whole tool is prevented from being scrapped, the time for maintaining the tool is shortened, the scrapped condition of a circuit board is avoided, the problem that the metal component on the circuit board pollutes the environment is solved, and the method is beneficial to the construction of an environment-friendly enterprise;
2. the two three-state switches are adopted to control the communication condition of the input power supply, so that the condition that the power supply module is electrified when the power supply module is not installed stably can be avoided, the power supply module is fully protected, and the safety in the test process is ensured;
3. the power module is reliably pressed on the probe through the pressing component, so that the power module is prevented from moving in the test, and the accuracy of a detection result is improved;
4. the whole tool is small in size, light in weight, low in manufacturing cost and suitable for popularization and use in factories.
Drawings
FIG. 1 is a schematic diagram of a circuit board assembly of the present invention;
FIG. 2 is a schematic view of the structure of the inverted long side plate of the present invention;
FIG. 3 is a schematic view of a supporting circuit board according to the present invention;
fig. 4 is a schematic structural view showing a locked state of the insulation box according to the present invention;
in the figure, a circuit board 1, a stud 2, a probe sleeve 3, a mounting pin 4, a probe 5, a three-state switch 6, a BNC connector 7, a pressing assembly 8, a mounting post 81, a sliding rod 82, a compression spring 83, a binding post 9, an insulation box 10, a bottom plate 101, a long side plate 102, a short side plate 103, a cover plate 104, magnetic steel 105, a locking mechanism 11, a bolt 111, a mounting seat 112, a spring 113, a baffle 114, a limit seat 115 and a locking plate 116.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the power module testing device of the present invention includes an insulation box 10, a circuit board 1, and a stud 2 fixedly connected at a corner of the circuit board 1, wherein the stud 2 is fixedly connected in the insulation box 10, the insulation box 10 includes a bottom plate 101, two symmetrical short side plates 103, two symmetrical long side plates 102, the short side plates 103 and the long side plates 102 are both rotatably connected to the bottom plate 101, the rotation angle of the short side plates 103 relative to the bottom plate 101 is 180 degrees, the rotation angle of the long side plates 102 relative to the bottom plate 101 is 180 degrees, and the bottom plate 101 can be lifted up by reversing the long side plates 102 and the short side plates 103, so that the circuit board mounted in the interior is lifted up along with the bottom plate 101; the upper end of the short side plate 103 is rotatably provided with a cover plate 104, wherein the length of the cover plate 104 is 1/2 of the length of the long side plate 102; a locking mechanism 11 is arranged between each adjacent long side plate 102 and short side plate 103; the locking mechanism 11 comprises a mounting seat 112, a limiting seat 115, a bolt 111 and a locking plate 116, wherein the mounting seat 112 is fixedly connected to the regrowth side plate 102, the limiting seat 115 is fixedly connected to the mounting seat 112, the locking plate 116 is fixedly connected to the short side plate 103, and the bolt 111 sequentially passes through the mounting seat 112 and the limiting seat 115 and then is matched with the locking plate 116. The plug 111 is provided with a baffle 114, the baffle 114 is positioned in the limiting seat 115, the plug 111 is also provided with a spring 113, one end of the spring 113 is abutted against the mounting seat 112, and the other end of the spring 113 is abutted against the baffle 114; the latch 111 is automatically moved toward the locking plate 116 by the spring 113, avoiding the use of manual alignment, and particularly, the latch can be directly locked in a invisible state after the insulation box 10 is turned over.
The circuit board passes through the double-screw bolt rigid coupling on bottom plate 101, and when using, opens locking mechanism 11, locks short curb plate 103, long curb plate 102 after the upset 180 degrees rethread locking mechanism 11 for whole insulating box 10 supports the circuit board, makes the circuit board insulating through insulating box 10, can effectively avoid because the inaccurate condition of test result of extra power supply in the in-process of using. The middle part of the circuit board 1 is fixedly connected with a plurality of probe 5 sleeves 3 matched with the contact positions of the power supply module, the upper ends of the probe 5 sleeves 3 are fixedly connected with hollow mounting pins 4, detachable probes 5 are sleeved in the mounting pins 4, the probes 5 are inserted into the probe 5 sleeves 3, wherein the mounting pins 4 adopt light straight-groove elastic cylindrical pins, the diameter of the cylindrical pins can be changed according to the diameter of the probes 5, the fit clearance between the probes 5 and the cylindrical pins is smaller, the probes 5 are supported through the mounting pins 4, the probes 5 are prevented from shaking, the guide pins on the power supply module are prevented from moving after the probes 5 are inserted, and the smooth test is ensured; the circuit board 1 is also provided with two three-state switches 6 and a BNC connector 7, the three-state switches 6 are electrically connected with the probe 5 sleeve 3 positioned at the input end of the power module, the probe 5 sleeve 3 positioned at the output end of the power module is electrically connected with the BNC connector 7, one three-state switch 6 controls the positive electrode of the power supply, and the other three-state switch 6 controls the negative electrode of the power supply; the power supply of the power supply module is controlled to be turned off through the three-state switch 6, so that the safety of testing is ensured, the power supply module is prevented from being electrified during installation, and the damage to the power supply module is prevented. In order to facilitate the power supply clip to reliably energize the circuit board 1 when the circuit board 1 is energized, two groups of connecting posts 9 are arranged on the circuit board 1, each group is 2 in number, one is positive, and the other is negative; one set of pins 9 is located on the side of the three-state switch 6 and the other set of pins 9 is located on the side of the BNC connector 7. In order to facilitate processing and save cost, the binding post 9 is directly welded on the circuit board 1 by adopting a flat head rivet, and the material is current and has good conductive effect.
In order to reliably install the power module on the circuit board, the two sides of the sleeve 3 of the probe 5 are provided with the pressing assemblies 8 for limiting the movement of the power module, the pressing assemblies 8 comprise mounting posts 81, sliding rods 82 and pressing springs 83, the heights of the mounting posts 81 are the same as those of the studs 2, the mounting posts 81 can directly adopt the studs 2 for saving materials, the lower ends of the sliding rods 82 penetrate through the circuit board 1 and then are locked with the mounting posts 81, and the pressing springs 83 are adjustably installed on the sliding rods 82. When the power module is installed, after the guide pair on the power module is correspondingly inserted into the probe 5, the height of the leaf spring 83 is adjusted, the power module is reliably pressed by the elastic force of the leaf spring 83, the power module is prevented from moving in the probe 5, the damage to the socket of the probe 5 caused by shaking is avoided, the reliable connection of the probe 5 and the power module is ensured, the poor contact and virtual communication are avoided, and the test accuracy is improved.
Working principle: after the corresponding probe 5 is inserted into the guide pin on the power module, the power module is electrified through the three-state switch 6, so that the power module starts to work, the probe 5 at the input end of the power module provides high voltage, the probe 5 at the output end of the power module outputs low voltage after being processed by the power module and is connected with a detection instrument through the BNC connector 7, the working performance and the characteristic curve of the power module are detected through the detection instrument, the power module is fixed through a test fixture, the function and the quality problem of the power module can be fully tested, and the qualification rate of products is improved.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (5)
1. The power module testing device comprises an insulation box (10), a circuit board (1) and a stud (2) fixedly connected to the corner of the circuit board (1), wherein the stud (2) is fixedly connected in the insulation box (10); the method is characterized in that: the middle part of the circuit board (1) is fixedly connected with a plurality of probe (5) sleeves (3) matched with the contact positions of the power supply module, the upper ends of the probe (5) sleeves (3) are fixedly connected with hollow mounting pins (4), the detachable probe (5) is sleeved in the mounting pins (4), and the probe (5) is inserted into the probe (5) sleeves (3); the circuit board (1) is also provided with two three-state switches (6) and a BNC connector (7), the three-state switches (6) are electrically connected with the probe (5) sleeve (3) positioned at the input end of the power supply module, the probe (5) sleeve (3) positioned at the output end of the power supply module is electrically connected with the BNC connector (7), one three-state switch (6) controls the positive electrode of the power supply, and the other three-state switch (6) controls the negative electrode of the power supply; the two sides of the sleeve (3) of the probe (5) are respectively provided with a pressing component (8) for limiting the movement of the power supply module;
the compressing assembly (8) comprises a mounting column (81), a sliding rod (82) and a compression spring (83), wherein the height of the mounting column (81) is the same as that of the stud (2), the lower end of the sliding rod (82) penetrates through the circuit board (1) and then is locked with the mounting column (81), and the compression spring (83) is adjustably mounted on the sliding rod (82);
the insulation box (10) comprises a bottom plate (1010), two pairs of symmetrical short side plates (103) and two pairs of symmetrical long side plates (102), wherein the short side plates (103) and the long side plates (102) are both rotationally connected to the bottom plate (1010), a cover plate (104) is rotationally arranged at the upper end of the short side plates (103), and the length of the cover plate (104) is 1/2 of that of the long side plates (102); locking mechanisms (11) are arranged between the adjacent long side plates (102) and the short side plates (103).
2. The power module testing apparatus of claim 1, wherein: two groups of connecting posts (9) are further arranged on the circuit board (1), each group is 2 in number, one group is located on one side of the three-state switch (6), and the other group is located on one side of the BNC connector (7).
3. The power module testing apparatus of claim 1, wherein: the locking mechanism (11) comprises a mounting seat (112), a limiting seat (115), a bolt (111) and a locking plate (116), wherein the mounting seat (112) is fixedly connected to the longer side plate (102), the limiting seat (115) is fixedly connected to the mounting seat (112), the locking plate (116) is fixedly connected to the short side plate (103), and the bolt (111) sequentially penetrates through the mounting seat (112) and the limiting seat (115) and then is matched with the locking plate (116).
4. A power module testing device according to claim 3, wherein: be equipped with baffle (114) on bolt (111), and baffle (114) are located spacing seat (115), still be equipped with spring (113) on bolt (111), the one end of spring (113) supports and leans on mount pad (112), and the other end of spring (113) supports and leans on baffle (114).
5. A power module testing apparatus according to any one of claims 1, 3 or 4, wherein: the long side plate (102) and the adjacent short side plate (103) are provided with mutually attractive T-shaped magnetic steel (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052358.9A CN107643496B (en) | 2017-10-30 | 2017-10-30 | Power module testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052358.9A CN107643496B (en) | 2017-10-30 | 2017-10-30 | Power module testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107643496A CN107643496A (en) | 2018-01-30 |
| CN107643496B true CN107643496B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711052358.9A Active CN107643496B (en) | 2017-10-30 | 2017-10-30 | Power module testing device |
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| Country | Link |
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| CN (1) | CN107643496B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796198B (en) * | 2020-07-14 | 2021-12-10 | 连云港杰瑞电子有限公司 | Power module testing tool and testing method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159001A (en) * | 1996-02-13 | 1997-09-10 | 日本电子材料株式会社 | Probe, manufacture of same, and vertically operative type probe card assembly employing same |
| CN200956035Y (en) * | 2006-08-24 | 2007-10-03 | 中国探针股份有限公司 | Replaceable probe structure |
| JP2007263630A (en) * | 2006-03-28 | 2007-10-11 | I C T:Kk | Inspection tool and inspection unit for printed circuit board |
| CN102565752A (en) * | 2012-01-19 | 2012-07-11 | 上海格州电子有限公司 | Test tool for electric meter |
| CN203321145U (en) * | 2013-03-31 | 2013-12-04 | 北京三兴汽车有限公司 | Spring-type plug pin combination locking device |
| CN203365490U (en) * | 2013-07-18 | 2013-12-25 | 北京京东方光电科技有限公司 | Probe framework and substrate test device |
| CN105353296A (en) * | 2015-12-15 | 2016-02-24 | 中北大学 | Flying probe tester utilizing planar motor |
| CN105403826A (en) * | 2016-01-04 | 2016-03-16 | 京东方科技集团股份有限公司 | Test tool |
| CN105699874A (en) * | 2014-11-28 | 2016-06-22 | 天津市中天电子发展有限公司 | Water meter circuit board rapid detection device |
| CN205869796U (en) * | 2016-06-13 | 2017-01-11 | 苏州沃特维自动化系统有限公司 | Welding and probe push down device |
| CN207366717U (en) * | 2017-10-30 | 2018-05-15 | 重庆大及电子科技有限公司 | A kind of power module test device |
-
2017
- 2017-10-30 CN CN201711052358.9A patent/CN107643496B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159001A (en) * | 1996-02-13 | 1997-09-10 | 日本电子材料株式会社 | Probe, manufacture of same, and vertically operative type probe card assembly employing same |
| JP2007263630A (en) * | 2006-03-28 | 2007-10-11 | I C T:Kk | Inspection tool and inspection unit for printed circuit board |
| CN200956035Y (en) * | 2006-08-24 | 2007-10-03 | 中国探针股份有限公司 | Replaceable probe structure |
| CN102565752A (en) * | 2012-01-19 | 2012-07-11 | 上海格州电子有限公司 | Test tool for electric meter |
| CN203321145U (en) * | 2013-03-31 | 2013-12-04 | 北京三兴汽车有限公司 | Spring-type plug pin combination locking device |
| CN203365490U (en) * | 2013-07-18 | 2013-12-25 | 北京京东方光电科技有限公司 | Probe framework and substrate test device |
| CN105699874A (en) * | 2014-11-28 | 2016-06-22 | 天津市中天电子发展有限公司 | Water meter circuit board rapid detection device |
| CN105353296A (en) * | 2015-12-15 | 2016-02-24 | 中北大学 | Flying probe tester utilizing planar motor |
| CN105403826A (en) * | 2016-01-04 | 2016-03-16 | 京东方科技集团股份有限公司 | Test tool |
| CN205869796U (en) * | 2016-06-13 | 2017-01-11 | 苏州沃特维自动化系统有限公司 | Welding and probe push down device |
| CN207366717U (en) * | 2017-10-30 | 2018-05-15 | 重庆大及电子科技有限公司 | A kind of power module test device |
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| Publication number | Publication date |
|---|---|
| CN107643496A (en) | 2018-01-30 |
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