CN211206580U - Thermal resistance test fixture for electronic element - Google Patents
Thermal resistance test fixture for electronic element Download PDFInfo
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- CN211206580U CN211206580U CN201922111362.9U CN201922111362U CN211206580U CN 211206580 U CN211206580 U CN 211206580U CN 201922111362 U CN201922111362 U CN 201922111362U CN 211206580 U CN211206580 U CN 211206580U
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Abstract
The utility model discloses an electronic component thermal resistance test fixture, including anchor clamps bottom plate, unable adjustment base, locating plate, apron, cylinder fixed plate, filtration relief pressure valve, pressure sensor display meter, hand-operated direction valve, electrode slide adjust pole and electrode slide, the anchor clamps bottom plate is the setting of rectangle plate-type. The utility model belongs to the technical field of the electronic component test, specifically be an electronic component that can fix a position different specifications through adjusting positioning mechanism, same anchor clamps are applicable to the multi-element test, practice thrift the cost, and through adjusting clamping mechanism's pressure, the protection component of maximize is not crushed when guaranteeing to press from both sides tight, guarantees that the electrode can not the electronic component thermal resistance test fixture of short circuit.
Description
Technical Field
The utility model belongs to the technical field of the electronic component test, specifically indicate an electronic component thermal resistance test fixture.
Background
The thermal characteristic of the electronic component is one of the important contents in the reliability design, in order to ensure the reliability of the device when in use, the heat dissipation characteristic of the device is considered in the structural design of the device, and the quantitative calculation of the designs needs to be based on the thermal resistance parameter of the device, therefore, the thermal resistance of the electronic component is an important parameter reflecting the thermal characteristic of the device, the resistance met by the heat on the heat conduction path is the thermal resistance, which is defined as the ratio of the temperature difference on the heat conduction path to the consumed power, the thermal resistance of the device to the shell is the thermal resistance between the heat source junction of the chip and the packaging shell, the junction temperature TJ of the device during working can be obtained by a thermal resistance tester, the packaging shell temperature (shell temperature) of the device is controlled at a certain fixed temperature by a temperature control platform when the junction-to-shell thermal resistance test is carried out according to the test method specified by the test standard, so the junction-to-shell thermal resistance, its three electrode all is located the device bottom surface, and on the coplanar, because the higher part of its during operation shell temperature is the bottom surface of leading out the electrode, when control shell temperature, need paste close accuse temperature platform and thermocouple probe with the electrode surface, nevertheless the accuse temperature platform is the metal material, if directly paste the device on accuse temperature platform, must can not test because the electrode short circuit.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned current difficult problem, the utility model provides an electronic component that can fix a position different specifications through adjusting positioning mechanism, same anchor clamps are applicable to the multi-element test, practice thrift the cost, and through adjusting clamping mechanism's pressure, the protection component of maximize is not crushed when guaranteeing to press from both sides tight, guarantees that the electrode can not the electronic component thermal resistance test fixture of short circuit.
The utility model adopts the following technical scheme: the utility model relates to an electronic component thermal resistance test fixture, which comprises a fixture bottom plate, a fixed base, a positioning plate, a cover plate, a cylinder fixing plate, a filter pressure reducing valve, a pressure sensor display meter, a manual reversing valve, an electrode slide block adjusting rod and an electrode slide block, wherein the fixture bottom plate is in a rectangular plate shape, the fixed base is arranged at the central position of the fixture bottom plate, the electrode slide block adjusting rod is rotatably arranged on two non-adjacent side walls of the fixed base, the electrode slide block is arranged in the fixed base and is sleeved on the electrode slide block adjusting rod, the positioning plate is connected on the fixed base, the cover plate is connected on the positioning plate, the cylinder fixing plate is arranged on the fixture bottom plate, the cylinder is arranged on the cylinder fixing plate and is close to the fixed base, the filter pressure reducing valve is arranged on the side wall of the fixed base, the, the manual reversing valve is arranged on the clamp bottom plate.
Furthermore, the fixed base is a rectangular cavity with openings at the upper part and two sides.
Furthermore, the electrode slide block is arranged in a rectangular plate shape, an electrode plate is arranged on the upper wall of the electrode slide block and used for being electrically communicated with an electronic element, and an electrode connecting hole is formed in the side wall of the electrode slide block and is convenient for electrode insertion.
Furthermore, one end of the electrode slide block adjusting rod is provided with a first adjusting knob, and the first adjusting knob can adjust the distance from the electrode slide block to the first adjusting knob.
Furthermore, the locating plate is in a rectangular plate shape, a locating plate groove is formed in the center of the locating plate, the locating plate groove is arranged on the locating plate in a penetrating mode, a locating slider is arranged in the locating plate groove and is slidably arranged in the locating plate groove, an adjusting knob II is arranged on one side wall of the locating plate, and a thermocouple probe placing hole is formed in the other opposite side wall of the locating plate groove.
Further, the cover plate is arranged in a rectangular plate shape, the bottom wall of the cover plate is provided with a cover plate protrusion, and the size of the cover plate protrusion is equal to that of the positioning plate groove.
Further, a flat pressing plate is arranged at the upper end of the air cylinder and can tightly press the cover plate, and a pressure sensor is arranged on the flat pressing plate and used for detecting the force of the pressing.
Furthermore, the electrode slide block is made of high-temperature-resistant insulating materials.
Adopt above-mentioned structure the utility model discloses the beneficial effect who gains as follows: the electronic component thermal resistance test fixture has the advantages that electronic components of different specifications can be positioned by adjusting the positioning mechanism, the same fixture is suitable for multi-component testing, cost is saved, the clamping is guaranteed to be tight, meanwhile, the maximized protection component is not crushed, and the electrode is not short-circuited.
Drawings
Fig. 1 is a schematic view of the overall structure of the thermal resistance testing fixture for electronic components of the present invention;
fig. 2 is a partial exploded view of the thermal resistance testing fixture for electronic components of the present invention.
The fixture comprises a fixture base plate 1, a fixture base plate 2, a fixing base 3, a positioning plate 4, a cover plate 5, an air cylinder 6, an air cylinder fixing plate 7, a filtering and reducing valve 8, a pressure sensor display meter 9, a manual reversing valve 10, an electrode slide adjusting rod 11, an electrode slide, 12, an electrode plate 13, an electrode connecting hole 14, an adjusting knob I, 15, a positioning plate groove 16, a positioning slide, 17, an adjusting knob II, 18, a thermocouple probe placing hole 19, a cover plate protrusion 20, a flat pressing plate 21 and a pressure sensor.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the following embodiments, and the technical features or the connection relations of the present invention, which are not described in detail, are the prior art adopted.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, the thermal resistance testing fixture for electronic components of the present invention comprises a fixture bottom plate 1, a fixing base 2, a positioning plate 3, a cover plate 4, a cylinder 5, a cylinder fixing plate 6, a filtering and pressure reducing valve 7, a pressure sensor display 8, a manual directional valve 9, an electrode slider adjusting rod 10 and an electrode slider 11, wherein the fixture bottom plate 1 is in a rectangular plate shape, the fixing base 2 is disposed at a central position of the fixture bottom plate 1, the electrode slider adjusting rod 10 is rotatably disposed on two non-adjacent side walls of the fixing base 2, the electrode slider 11 is disposed in the fixing base 2 and sleeved on the electrode slider adjusting rod 10, the positioning plate 3 is clamped on the fixing base 2, the cover plate 4 is clamped on the positioning plate 3, the cylinder fixing plate 6 is disposed on the fixture bottom plate 1, the cylinder 5 is disposed on the cylinder fixing plate 6 and close to the fixing, the filtering and pressure reducing valve 7 is arranged on the side wall of the fixed base 2, the pressure sensor display meter 8 is arranged on the side wall of the fixed base 2 and is close to the filtering and pressure reducing valve 7, and the manual reversing valve 9 is arranged on the clamp bottom plate 1.
The fixed base 2 is a rectangular cavity with openings at the upper part and two sides.
The electrode slide block 11 is arranged in a rectangular plate shape, an electrode plate 12 is arranged on the upper wall of the electrode slide block 11, the electrode plate 12 is used for being electrically communicated with an electronic element, an electrode connecting hole 13 is arranged on the side wall of the electrode slide block 11, and the electrode connecting hole 13 facilitates electrode insertion.
One end of the electrode slide block adjusting rod 10 is provided with an adjusting knob I14, and the adjusting knob I14 can adjust the distance from the electrode slide block 11 to the adjusting knob I14.
The positioning plate 3 is in a rectangular plate shape, a positioning plate groove 15 is formed in the center of the positioning plate 3, the positioning plate groove 15 is arranged on the positioning plate 3 in a penetrating mode, a positioning sliding block 16 is arranged in the positioning plate groove 15, the positioning sliding block 16 is arranged in the positioning plate groove 15 in a sliding mode, an adjusting knob II 17 is arranged on one side wall of the positioning plate 3, and a thermocouple probe placing hole 18 is formed in the other opposite side wall of the positioning plate groove 15.
The cover plate 4 is rectangular plate-shaped, a cover plate protrusion 19 is arranged on the bottom wall of the cover plate 4, and the size of the cover plate protrusion 19 is equal to that of the positioning plate groove 15.
The upper end of the cylinder 5 is provided with a flat pressing plate 20, the flat pressing plate 20 can tightly press the cover plate 4, the flat pressing plate 20 is provided with a pressure sensor 21, and the pressure sensor 21 is used for detecting the tight force.
The electrode slide block 11 is made of high-temperature-resistant insulating materials.
When the fixture plate is used, a user places the fixture plate on a constant temperature platform, an electrode of an electronic element is inserted into the electrode connecting hole 13 and is communicated with the electrode plate 12, the electronic element is placed into the positioning plate groove 15, the adjusting knob II 17 is rotated, the adjusting knob II 17 rotates to drive the positioning slide block 16 to move, so that the electronic element is fixed, the adjusting knob I14 is rotated to adjust the position of the electrode slide block 11 to be matched with the electronic element, the cover plate 4 is covered on the positioning plate 3 after adjustment is completed, the boss of the cover plate 4 is clamped into the positioning plate groove 15, the pressure of the air cylinder 5 is adjusted through the filtering and reducing valve 7 according to the pressure resistance of the electronic element, the manual reversing valve 9 is rotated to control the lifting of the air cylinder 5, the air cylinder 5 drives the flat pressing plate 20 to lift, so that the cover plate 4 is fastened on the positioning plate 3, and the pressure sensor 21 at the, and show the pressure value on pressure sensor shows table 8, through observing numerical value on the pressure sensor shows table 8 and carry out nimble adjustment, when carrying out the thermocouple test to electronic component, only need put into thermocouple probe with thermocouple probe and place hole 18 and can test, it is above-mentioned just the utility model discloses holistic work flow, repeat this step when using next time can.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (8)
1. The utility model provides an electronic component thermal resistance test fixture which characterized in that: comprises a clamp bottom plate, a fixed base, a positioning plate, a cover plate, a cylinder fixing plate, a filtering and reducing valve, a pressure sensor display meter, a manual reversing valve, an electrode slide block adjusting rod and an electrode slide block, the clamp bottom plate is arranged in a rectangular plate shape, the fixed base is arranged at the central position of the clamp bottom plate, the electrode slide block adjusting rod is rotatably arranged on two non-adjacent side walls of the fixed base, the electrode slide block is arranged in the fixed base and is sleeved on the electrode slide block adjusting rod, the positioning plate is clamped on the fixed base, the cover plate is clamped on the positioning plate, the cylinder fixing plate is arranged on the clamp bottom plate, the cylinder is arranged on the cylinder fixing plate and close to the fixed base, the filtering and pressure reducing valve is arranged on the side wall of the fixed base, the pressure sensor display meter is arranged on the side wall of the fixed base and is close to the filtering and reducing valve, and the manual reversing valve is arranged on the bottom plate of the clamp.
2. The thermal resistance test fixture for electronic components of claim 1, wherein: the fixed base is a rectangular cavity with openings at the upper part and the two sides.
3. The thermal resistance test fixture for electronic components of claim 2, wherein: the electrode slide block is arranged in a rectangular plate shape, an electrode plate is arranged on the upper wall of the electrode slide block, and an electrode connecting hole is formed in the side wall of the electrode slide block.
4. The thermal resistance test fixture for electronic components of claim 3, wherein: one end of the electrode slide block adjusting rod is provided with an adjusting knob I.
5. The thermal resistance test fixture for electronic components of claim 4, wherein: the locating plate is in a rectangular plate shape, a locating plate groove is formed in the center of the locating plate, the locating plate groove is arranged on the locating plate in a penetrating mode, a locating slider is arranged in the locating plate groove and can be slidably arranged in the locating plate groove, an adjusting knob II is arranged on one side wall of the locating plate, and a thermocouple probe placing hole is formed in the other opposite side wall of the locating plate groove.
6. The thermal resistance test fixture for electronic components of claim 5, wherein: the cover plate is arranged in a rectangular plate shape, the bottom wall of the cover plate is provided with a cover plate protrusion, and the size of the cover plate protrusion is equal to that of the positioning plate groove.
7. The clamp for testing thermal resistance of electronic elements according to claim 6, wherein: the upper end of the cylinder is provided with a flat pressing plate, and the flat pressing plate is provided with a pressure sensor.
8. The thermal resistance test fixture for electronic components of claim 7, wherein: the electrode slide block is made of high-temperature-resistant insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922111362.9U CN211206580U (en) | 2019-11-30 | 2019-11-30 | Thermal resistance test fixture for electronic element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922111362.9U CN211206580U (en) | 2019-11-30 | 2019-11-30 | Thermal resistance test fixture for electronic element |
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| Publication Number | Publication Date |
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| CN211206580U true CN211206580U (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922111362.9U Active CN211206580U (en) | 2019-11-30 | 2019-11-30 | Thermal resistance test fixture for electronic element |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285660A (en) * | 2020-09-10 | 2021-01-29 | 北京无线电测量研究所 | Fixing device for TR assembly test |
| CN112782215A (en) * | 2020-12-28 | 2021-05-11 | 中国电子科技集团公司第五十八研究所 | Novel thermal resistance test fixture for electronic element |
| CN112782216A (en) * | 2020-12-29 | 2021-05-11 | 中国电子科技集团公司第五十八研究所 | Thermal resistance test fixture for flip chip packaging |
| CN112782217A (en) * | 2020-12-29 | 2021-05-11 | 中国电子科技集团公司第五十八研究所 | Thermal resistance test fixture for flip chip |
-
2019
- 2019-11-30 CN CN201922111362.9U patent/CN211206580U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285660A (en) * | 2020-09-10 | 2021-01-29 | 北京无线电测量研究所 | Fixing device for TR assembly test |
| CN112782215A (en) * | 2020-12-28 | 2021-05-11 | 中国电子科技集团公司第五十八研究所 | Novel thermal resistance test fixture for electronic element |
| CN112782216A (en) * | 2020-12-29 | 2021-05-11 | 中国电子科技集团公司第五十八研究所 | Thermal resistance test fixture for flip chip packaging |
| CN112782217A (en) * | 2020-12-29 | 2021-05-11 | 中国电子科技集团公司第五十八研究所 | Thermal resistance test fixture for flip chip |
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