CN221081848U

CN221081848U - Test device

Info

Publication number: CN221081848U
Application number: CN202322435277.4U
Authority: CN
Inventors: 胡建华
Original assignee: Beijing Co Wheels Technology Co Ltd
Current assignee: Beijing Co Wheels Technology Co Ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-06-04
Anticipated expiration: 2033-09-07

Abstract

The disclosure relates to the technical field of testing, in particular to a testing device. The test device provided by the present disclosure includes: the device comprises a bracket, a moving unit and a heat dissipation device, wherein the bracket is used for placing a piece to be tested; the moving unit is arranged on the bracket and can move along the height direction Z of the bracket; the heat dissipation device is arranged on the mobile unit and can move along the length direction X of the bracket and the width direction Y of the bracket so that the heat dissipation device corresponds to a heating component arranged on the to-be-detected piece; the heat dissipation device comprises a fan, a heat dissipation piece and a heat conduction piece, wherein the heat conduction piece is detachably connected with the heat dissipation piece. The testing device provided by the disclosure not only can be matched with the to-be-tested pieces with different sizes and different specifications for use, but also can be matched with different heating components on the same to-be-tested piece for use, so that the adaptability of the testing device is wider, the investment of cost can be reduced, and the working efficiency is improved.

Description

Test device

Technical Field

The disclosure relates to the technical field of testing, in particular to a testing device.

Background

The controller needs to debug the PCB in the design stage, and under the condition that heat dissipation support is not available, the chip with larger power consumption on the PCB can cause functional failure due to overheating, so that the specific chip on the PCB needs to be subjected to heat dissipation in the PCB debugging process, and the quality and the reliability of the chip are ensured. In the traditional heat dissipation mode, as the heat dissipation device is designed in a one-to-one matching way with the chips on the PCB, after the periodic debugging, the corresponding debugging tool is scrapped, and the investment of cost is increased.

Disclosure of Invention

In order to solve the technical problems, the present disclosure provides a testing device

The present disclosure provides a test apparatus, comprising: the bracket is used for placing the to-be-tested piece;

The moving unit is arranged on the bracket and can move along the height direction Z of the bracket;

The heat dissipation device is arranged on the mobile unit and can move along the length direction X of the bracket and the width direction Y of the bracket so that the heat dissipation device corresponds to a heating component arranged on the to-be-detected piece;

The heat dissipation device comprises a fan, a heat dissipation part and a heat conduction part, wherein the fan, the heat dissipation part and the heat conduction part are sequentially arranged, the fan is adjacent to the heat dissipation part, the fan and the heat dissipation part are connected with the mobile unit, and the heat conduction part is detachably connected with the heat dissipation part.

Further, the fourth fastening piece penetrates through the heat dissipation piece to be in threaded connection with the heat conduction piece.

Further, the heat conducting piece comprises a body part and a boss protruding out of the body part, the body part is abutted with the heat radiating piece, and the boss is used for contacting and radiating with the heating component.

Further, the to-be-measured piece is provided with a surrounding device, the surrounding device is arranged close to the heat conducting piece, and the surrounding device and the heat conducting piece are positioned on the same side of the to-be-measured piece;

The height H1 of the heat conducting piece along the height direction Z of the support meets the following conditions: h1 Not less than H2-H3;

wherein H2 is the height of the surrounding devices along the height direction Z of the bracket, and H3 is the height of the heating component along the height direction Z of the bracket.

Further, the heat sink includes a contact and a plurality of heat sinks;

The heat conducting piece is connected with the contact piece;

The radiating fins are arranged on one side, far away from the heat conducting piece, of the contact piece, and the radiating fins are arranged at intervals.

Further, a plurality of limiting pieces are arranged on one side, facing the heat conducting piece, of the contact piece, the limiting pieces are used for surrounding the heat conducting piece to form a mounting position, and the limiting pieces are symmetrical relative to the center of the mounting position.

Further, the limiting piece comprises a first limiting plate and a second limiting plate which are connected with each other, and the first limiting plate is perpendicular to the second limiting plate.

Further, the support extends along the height direction Z of the support;

The moving unit comprises a guide piece, wherein the guide piece is arranged on the bracket, and the guide piece can move along the extending direction of the bracket.

Further, the guide piece comprises a main body part, the main body part is provided with a through hole penetrating through, the bracket is arranged through the through hole in a penetrating mode, and the main body part is connected with the bracket through a first fastener;

And/or the moving unit comprises a first guide rail and a second guide rail, wherein the first guide rail is provided with a first guide part extending along the width direction Y of the bracket, the second guide rail is respectively and movably arranged at the first guide part along the two ends of the length direction X of the bracket, the second guide rail is provided with a second guide part extending along the length direction X of the bracket, and the heat radiating device is movably arranged at the second guide part;

And/or the number of the moving units is two, the two moving units are arranged on the support along the height direction Z of the support, the heat dissipation device is arranged on one moving unit, and the to-be-detected piece is arranged on the other moving unit.

Further, the first guide part comprises a first guide groove, the first guide groove extends along the width direction Y of the bracket, a second fastening piece is arranged in the first guide groove, and the second fastening piece penetrates through the first guide groove to be connected with the second guide rail;

And/or the second guiding part comprises a second guiding groove, the second guiding groove extends along the length direction X of the bracket, the second guiding groove is provided with a third fastening piece, and the third fastening piece penetrates through the second guiding groove to be connected with the heat dissipation device.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

The test device provided by the embodiment of the disclosure comprises a bracket, a mobile unit and a heat dissipation device; the support is used for mounting a piece to be tested, and the moving unit is arranged on the support and can move along the height direction Z of the support; the heat dissipating device is arranged on the moving unit and can move along the length direction X of the bracket and the width direction Y of the bracket, so that the heat dissipating device corresponds to the heating component arranged on the to-be-detected piece. When the heat dissipation device is used, the part to be tested is arranged on the support, the position of the heat dissipation device can be adjusted by moving the moving unit, so that the heat dissipation device corresponds to the heating component on the part to be tested, and the heat dissipation effect of the heating component on the part to be tested is improved. The heat dissipation device comprises a fan, a heat dissipation part and a heat conduction part, wherein the fan, the heat dissipation part and the heat conduction part are sequentially arranged, the fan is adjacent to the heat dissipation part, the fan and the heat dissipation part are connected with the mobile unit, and the heat conduction part is detachably connected with the heat dissipation part. The heat conducting piece is detachably connected with the heat radiating piece, so that the heat conducting piece has replaceability, and the heat conducting piece is adjacent to the heating component and is used for contacting with the heating component for heat radiation, so that the heat conducting piece is convenient to replace. The heat conducting piece can be used for a single heating component, and can also be simultaneously applied to different heating components with heat dissipation requirements on the whole piece to be tested. Through the heat conduction piece of design multiunit size, multiunit height, can select to use according to actual demand when the piece debugging that awaits measuring at ordinary times. According to the testing device provided by the embodiment of the disclosure, after the testing device finishes testing one heating component on the to-be-tested piece, the heat conducting piece can be replaced to be continuously used for testing other heating components on the to-be-tested piece or to be continuously used for testing other to-be-tested pieces. When the heat dissipation device is used, after the part to be tested is fixed, the heat dissipation device is enabled to move along the length direction X of the support and/or the width direction Y of the support through the moving unit, and the heat dissipation device corresponds to different heating components on the part to be tested. That is, the testing device provided by the embodiment of the disclosure not only can be matched with the to-be-tested pieces with different sizes and different specifications for use, but also can be matched with different heating components on the same to-be-tested piece for use, so that the adaptability of the testing device is wider, the investment of cost can be reduced, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of a test apparatus according to an embodiment of the disclosure;

FIG. 2 is a schematic diagram of a structure in which a part to be measured is disposed on a mobile unit;

FIG. 3 is a schematic diagram of a heat dissipating device disposed on a mobile unit;

FIG. 4 is a schematic view of the bottom structure of FIG. 3;

FIG. 5 is an exploded view of FIG. 3;

FIG. 6 is a partial enlarged view of the heat dissipating device disposed on the mobile unit;

Fig. 7 is a schematic structural view of a heat conductive member;

FIG. 8 is a schematic diagram of a heat sink;

FIG. 9 is a schematic view of a heat sink from another perspective;

FIG. 10 is a side view of a heat sink;

FIG. 11 is a side view of another construction of a heat sink;

Fig. 12 is a schematic view of another structure of the heat conductive member;

Fig. 13 is a side view of another construction of a heat sink.

Reference numerals: 1. a piece to be measured; 11. a heat generating component; 12. surrounding devices; 2. a bracket; 3. a mobile unit; 31. a first guide rail; 311. a first guide groove; 32. a second guide rail; 321. a second guide groove; 33. a guide member; 331. a through hole; 41. a first fastener; 42. a second fastener; 43. a third fastener; 44. a fourth fastener; 51. a fan; 52. a heat sink; 521. a contact piece; 522. a heat sink; 53. a heat conductive member; 531. a body portion; 532. a boss; 6. a limiting piece; 61. a first limiting plate; 62. and the second limiting plate.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

As shown in fig. 1 to 13, a test apparatus provided by an embodiment of the present disclosure includes a rack 2, a part 1 to be tested, and a moving unit 3; the support 2 is used for mounting the to-be-tested piece 1, and the moving unit 3 is arranged on the support 2 and can move along the height direction Z of the support 2; the heat sink is provided to the moving unit 3, and the heat sink can be moved in the length direction X of the holder 2 and the width direction Y of the holder 2 so that the heat sink corresponds to the heat generating component 11 provided on the part 1 to be tested. When the heat radiation device is used, the part to be tested 1 is arranged on the support 2, the position of the heat radiation device can be adjusted by moving the moving unit 3, so that the heat radiation device corresponds to the heat radiation part 11 on the part to be tested 1, the heat radiation effect of the heat radiation part 11 of the part to be tested 1 to be tested is improved, the heat radiation part 11 can continuously work in a high-temperature environment, the junction temperature exceeding the heat radiation part 11 is avoided, and the test stability of the heat radiation part 11 is improved. The test device provided in the embodiment of the present disclosure may be continuously used for testing other heat generating components 11 on the to-be-tested device 1 or for testing other to-be-tested devices 1 after the test device finishes testing one heat generating component 11 on the to-be-tested device 1. When in use, after the to-be-measured piece 1 is fixed, the heat dissipating device is moved along the length direction X of the bracket 2 and/or the width direction Y of the bracket 2 by the moving unit 3, so that the heat dissipating device corresponds to different heating components 11 on the to-be-measured piece 1. That is, the testing device provided by the embodiment of the disclosure not only can be matched with the to-be-tested pieces 1 with different sizes and different specifications for use, but also can be matched with different heating components 11 on the same to-be-tested piece 1 for use, so that the adaptability of the testing device is wider, the investment of cost can be reduced, and the working efficiency is improved. Meanwhile, the tool provided by the patent is convenient to install, high in reusability, capable of improving working efficiency and capable of saving cost.

The testing device provided by the embodiment of the disclosure can reduce the investment of time and cost, simplify the installation operation flow and improve the working efficiency while meeting the requirement of the debugging tool for adapting the heating component 11 on the same piece 1 to be tested or different pieces 1 to be tested.

The part 1 to be tested can be a PCB, a PCBA and the like, and can also be other components with heat dissipation requirements. The heating component can be a chip on a PCB or PCBA, or can be other main heating components on the component.

In some embodiments, the heat sink includes a fan 51 and a heat sink 52; the fan 51 and the heat dissipation part 52 are both connected with the mobile unit 3, and the fan 51 is adjacent to the heat dissipation part 52 and is used for cooling the heat dissipation part 52, so that the heat dissipation effect of the heating component 11 on the to-be-tested part 1 is improved, the heating component 11 can be ensured to continuously work in a high-temperature environment, the junction temperature of the heating component 11 is avoided being exceeded, and the testing stability of the heating component 11 is improved.

Alternatively, the long screw is fixed to the heat sink 52 through the second guide 32 and the mounting hole of the fan 51 in sequence. Optionally, a long screw is threadedly coupled to the heat sink 52.

In some specific embodiments, the heat-conducting member 53 is further included, and the fan 51, the heat-dissipating member 52, and the heat-conducting member 53 are disposed in this order; the heat conducting piece 53 is detachably connected with the heat radiating piece 52, and the heat conducting piece 53 is adjacent to the heating component 11 and used for contacting with the heating component 11 to radiate heat, so that the heat conducting piece 53 is convenient to replace. The heat conducting member 53 can be used alternatively not only for a single heat generating component 11 but also for different heat generating components 11 having heat dissipation requirements on the whole part 1 to be tested. By designing the heat conducting pieces 53 with multiple groups of sizes and multiple groups of heights, the heat conducting pieces 1 can be selected and used according to actual requirements during debugging of the to-be-tested piece at ordinary times. After the testing device finishes testing one heating component 11 on the to-be-tested piece 1, the heat conducting piece 53 can be replaced to be used for testing other heating components 11 on the to-be-tested piece 1 or used for testing other to-be-tested pieces 1. When in use, after the to-be-measured piece 1 is fixed, the heat dissipating device is moved along the length direction X of the bracket 2 and/or the width direction Y of the bracket 2 by the moving unit 3, so that the heat dissipating device corresponds to different heating components 11 on the to-be-measured piece 1. That is, the testing device provided by the embodiment of the disclosure not only can be matched with the to-be-tested pieces 1 with different sizes and different specifications for use, but also can be matched with different heating components 11 on the same to-be-tested piece 1 for use, so that the adaptability of the testing device is wider, the investment of cost can be reduced, and the working efficiency is improved.

In some embodiments, the fourth fastener 44 is threaded through the heat sink 52 with the heat conductive member 53. The fourth fastener 44 may be a bolt or a screw, and optionally, the heat conducting member 53 is provided with a threaded hole, and the bolt or the screw is screwed to the heat conducting member 53 through a mounting hole on the heat radiating member 52. Optionally, the heat conducting member 53 is provided with a blind hole, the blind hole is provided with an internal thread, and the tail of the bolt passes through the mounting hole on the heat radiating member 52 to be in threaded fit with the blind hole, so that the fastener cannot interfere the heat conducting member 53 to be in contact with the to-be-measured member 1, and the surface of the heat conducting member 53 in contact with the to-be-measured member 1 is a complete plane, thereby improving the heat radiating effect.

As shown in fig. 11, if the surrounding devices 12 around the heat generating component 11 on the device under test 1 are higher than the heat generating component 11, there is a case where the surrounding devices 12 collide with the heat conducting member 53.

In some specific embodiments, as shown in fig. 12 and 13, the heat conducting member 53 includes a body portion 531 and a boss 532 protruding from the body portion 531, the body portion 531 abuts against the heat dissipating member 52, and the boss 532 is used for heat dissipation in contact with the heat generating component 11. By providing the boss 532 with the heat conductive member 53, the striker problem can be solved. The height of the boss 532 is increased by the step feature, so that the heat dissipation module can perfectly avoid the development of the high-surrounding devices 12 around the thermal component 11, and complete the overall smooth assembly.

In some specific embodiments, the part 1 to be measured is provided with a surrounding device, the surrounding device is arranged close to the heat conducting member 53, and the surrounding device and the heat conducting member 53 are located on the same side of the part 1 to be measured; the height H1 of the heat conductive member 53 in the height direction Z of the bracket 2 satisfies: h1 Not less than H2-H3; where H2 is the height of the surrounding devices in the height direction Z of the holder 2, and H3 is the height of the heat generating component 11 in the height direction Z of the holder 2. The problem of collision can be solved. Through H1 is more than or equal to H2-H3, the heat radiation module can perfectly avoid and develop high surrounding devices 12 around the thermal component 11, and complete integral smooth assembly.

In some specific embodiments, heat sink 52 includes a contact tab 521 and a plurality of heat sinks 522; the heat conductive member 53 is connected to the contact piece 521; the plurality of radiating fins 522 are arranged on one side of the contact piece 521, which is far away from the heat conducting piece 53, and the plurality of radiating fins 522 are arranged at intervals, so that the radiating effect of the heating component 11 on the piece 1 to be tested is improved, the heating component 11 can be ensured to continuously work in a high-temperature environment, the junction temperature exceeding the heating component 11 is avoided, and the testing stability of the heating component 11 is improved.

In some specific embodiments, a plurality of limiting members 6 are disposed on a side of the contact piece 521 facing the heat conducting member 53, the plurality of limiting members 6 are configured to enclose a mounting position of the heat conducting member 53, and the plurality of limiting members 6 are symmetrical with respect to a center of the mounting position. The plurality of limiting pieces 6 are surrounded to be the installation positions of the heat conducting pieces 53, are used for limiting the heat conducting pieces 53, provide installation areas for the heat conducting pieces 53, play a role in guiding, facilitate replacement of the heat conducting pieces 53, and enable the heat conducting pieces 53 to be replaceable not only for a single heat generating component 11, but also for different heat generating components 11 with heat dissipation requirements on the whole to-be-detected piece 1. By designing the heat conducting pieces 53 with multiple groups of sizes and multiple groups of heights, the heat conducting pieces 1 can be selected and used according to actual requirements during debugging of the to-be-tested piece at ordinary times.

In some specific embodiments, the limiting member 6 includes a first limiting plate 61 and a second limiting plate 62 that are connected to each other, where the first limiting plate 61 and the second limiting plate 62 are perpendicular to each other, and are used to limit the heat conducting member 53, and provide an installation area for the heat conducting member 53, and meanwhile, can play a role in guiding, so that the heat conducting member 53 is convenient to replace.

In some specific embodiments, the support 2 extends along the height direction Z of the support 2; the moving unit 3 comprises a guide piece 33, the guide piece 33 is arranged on the support 2, the guide piece 33 can move along the extending direction of the support 2, so that the radiating device can move along the height direction Z of the support 2, not only can be matched with the to-be-tested pieces 1 with different sizes and different specifications for use, but also can be matched with different heating parts 11 on the same to-be-tested piece 1 for use, the adaptability of the testing device is wider, the investment of cost can be reduced, and the working efficiency is improved.

In some embodiments, the guide 33 includes a main body portion provided with a through hole 331 therethrough, and the bracket 2 is disposed through the through hole 331; the body portion is connected to the bracket 2 by a first fastener 41. The first fastener 41 may be a screw, and the main body portion is provided with a threaded hole, and the screw is in abutment with the bracket 2 after being in threaded engagement with the threaded hole, so that the guide member 33 may be fixed to the bracket 2, and the position of the guide member 33 in the height direction Z of the bracket 2 may be adjusted conveniently.

In some specific embodiments, the mobile unit 3 comprises a first rail 31 and a second rail 32; the first guide rail 31 is provided with a first guide portion extending in the width direction Y of the bracket 2, and the second guide rail 32 is movably provided at the first guide portion along both ends of the length direction X of the bracket 2, respectively, so that the second guide rail 32 can move in the width direction Y of the bracket 2. The second guide rail 32 is provided with a second guide part extending along the length direction X of the support 2, and the heat radiating device is movably arranged on the second guide part, so that the heat radiating device can move along the length direction X of the support 2, not only can be matched with the to-be-tested pieces 1 with different sizes and different specifications for use, but also can be matched with different heating parts 11 on the same to-be-tested piece 1 for use, so that the adaptability of the testing device is wider, the investment of cost can be reduced, and the working efficiency is improved.

Alternatively, the number of the first guide rails 31 is two, and the two first guide rails 31 are arranged at intervals. The number of the second guide rails 32 is two, and the two second guide rails 32 are arranged at intervals.

In some specific embodiments, the first guide portion includes a first guide groove 311, the first guide groove 311 extends along the width direction Y of the bracket 2, a second fastener 42 is disposed in the first guide groove 311, and the second fastener 42 passes through the first guide groove 311 to be connected with the second guide rail 32. The second fastener 42 includes a second screw slidably disposed in the first guide groove 311 and a second nut coupled to the second screw through a mounting hole formed in the second rail 32. The second guide rail 32 and the heat radiating device can move along the width direction Y of the bracket 2, not only can be matched with the to-be-tested pieces 1 with different sizes and different specifications for use, but also can be matched with different heating components 11 on the same to-be-tested piece 1 for use, so that the adaptability of the testing device is wider, the investment of cost can be reduced, and the working efficiency is improved.

In some specific embodiments, the second guide portion includes a second guide groove 321, the second guide groove 321 extends along the length direction X of the bracket 2, the second guide groove 321 is provided with a third fastener 43, and the third fastener 43 passes through the second guide groove 321 to be connected with the heat dissipating device. The third fastening member 43 includes a third screw slidably disposed in the second guide groove 321, and the third screw passes through the second guide groove 321 to be connected with the heat dissipating device. The heat dissipation device can move along the length direction X of the support 2, not only can be matched with the to-be-tested pieces 1 with different sizes and different specifications for use, but also can be matched with different heating components 11 on the same to-be-tested piece 1 for use, so that the adaptability of the test device is wider, the investment of cost can be reduced, and the working efficiency is improved.

In some specific embodiments, the number of the mobile units 3 is two, and the two mobile units 3 are arranged up and down on the support 2 along the height direction Z of the support 2; the heat dissipation device is arranged on one of the mobile units 3, and the to-be-tested piece 1 is arranged on the other mobile unit 3. The to-be-measured piece 1 is detachably connected with the moving unit 3, and optionally, the to-be-measured piece 1 is connected with the moving unit 3 through a fastener.

When the heat dissipation device is used, the to-be-measured piece 1 is arranged on the moving unit 3, and the to-be-measured piece 1 can be moved through the moving unit 3, so that the position of the to-be-measured piece 1 can be adjusted, and the heat dissipation device corresponds to the heating component 11 on the to-be-measured piece 1. The heat dissipating device is arranged on the other moving unit 3, and the heat dissipating device can be moved by the moving unit 3, so that the position of the heat dissipating device can be adjusted, and the heat dissipating device corresponds to the heating component 11 on the to-be-detected piece 1. After the test device has finished testing one heat generating component 11, it can be used for testing other heat generating components 11 on the part 1 to be tested or for testing other parts 1 to be tested. The heat sink is moved in the longitudinal direction X of the holder 2 and/or the width direction Y of the holder 2 by the moving unit 3, or the heat sink is made to correspond to the other heat generating component 11 by the moving unit 3 moving the test piece 1 in the longitudinal direction X of the holder 2 and/or the width direction Y of the holder 2. That is, the testing device provided by the embodiment of the disclosure not only can be matched with the to-be-tested pieces 1 with different sizes and different specifications for use, but also can be matched with the heating components 11 at different positions on the same to-be-tested piece 1 for use, so that the adaptability of the testing device is wider, the investment of cost can be reduced, and the working efficiency is improved. Meanwhile, the tool provided by the patent is convenient to install, high in reusability, capable of improving working efficiency and capable of saving cost.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Claims

1. A test device, comprising: the bracket is used for placing the to-be-tested piece;

A moving unit which is provided to the stand and can move in a height direction (Z) of the stand;

the heat dissipation device is arranged on the mobile unit and can move along the length direction (X) of the bracket and the width direction (Y) of the bracket so as to correspond to the heating component arranged on the to-be-detected piece;

2. The test device of claim 1, wherein a fourth fastener is threaded through the heat sink with the heat conductive member.

3. The test device of claim 1, wherein the heat conducting member includes a body portion and a boss protruding from the body portion, the body portion being in abutment with the heat dissipating member, the boss being for heat dissipation in contact with the heat generating component.

4. A test apparatus according to claim 3, wherein the member to be tested is provided with a peripheral device, the peripheral device being disposed adjacent to the heat conductive member, and the peripheral device being on the same side of the member to be tested as the heat conductive member;

The height H1 of the heat conducting piece along the height direction (Z) of the support meets the following conditions: h1 Not less than H2-H3;

Wherein H2 is the height of the surrounding devices along the height direction (Z) of the bracket, and H3 is the height of the heating component along the height direction (Z) of the bracket.

5. The test device of claim 1, wherein the heat sink comprises a contact sheet and a plurality of heat sinks;

The heat conducting piece is connected with the contact piece;

6. The testing device of claim 5, wherein a plurality of limiting members are disposed on a side of the contact sheet facing the heat conducting member, the plurality of limiting members are configured to enclose an installation position of the heat conducting member, and the plurality of limiting members are centrally symmetrical with respect to a center of the installation position.

7. The test device of claim 6, wherein the stop comprises a first stop plate and a second stop plate that are coupled to each other, the first stop plate and the second stop plate being perpendicular to each other.

8. The test device according to any one of claims 1 to 7, wherein the support extends in a height direction (Z) of the support, the moving unit comprises a guide, the guide is provided to the support, and the guide is movable in the extending direction of the support.

9. The test device of claim 8, wherein the guide comprises a body portion having a through hole therethrough, the bracket passing through the through hole, the body portion and the bracket being connected by a first fastener;

And/or the mobile unit comprises a first guide rail and a second guide rail, wherein the first guide rail is provided with a first guide part extending along the width direction (Y) of the bracket, the second guide rail is respectively and movably arranged at the first guide part along the two ends of the length direction (X) of the bracket, the second guide rail is provided with a second guide part extending along the length direction (X) of the bracket, and the heat dissipation device is movably arranged at the second guide part;

and/or the number of the moving units is two, the two moving units are arranged on the support along the height direction (Z) of the support, the heat dissipation device is arranged on one moving unit, and the piece to be detected is arranged on the other moving unit.

10. The test device according to claim 9, wherein the first guide portion comprises a first guide groove extending in a width direction (Y) of the rack, a second fastener being provided in the first guide groove, the second fastener being connected to the second guide rail through the first guide groove;

And/or, the second guiding part comprises a second guiding groove, the second guiding groove extends along the length direction (X) of the bracket, the second guiding groove is provided with a third fastening piece, and the third fastening piece penetrates through the second guiding groove to be connected with the heat dissipation device.