Heat dissipation efficiency testing device

Abstract

The invention provides a heat dissipation efficiency testing device, and relates to the technical field of testing devices.The heat dissipation efficiency testing device comprises a constant temperature device and a control mechanism, heat dissipation holes are formed in the top of the constant temperature device, an arc-shaped groove is formed in the top of the constant temperature device, a platform is fixedly connected to the outer surface of the constant temperature device, and the control mechanism comprises two supports; rotating holes are formed in one side of the support, a shaft rod is rotationally connected between the inner walls of the two rotating holes, the outer surface of the shaft rod is fixedly sleeved with a sleeve frame, and the outer surface of the sleeve frame is fixedly connected with a clamping mechanism. A constant temperature value is set through the constant temperature device, the sealing plate is used for sealing, the temperature in the constant temperature device is constant, the temperature change is small, a stepping motor in the control mechanism serves as a driving source to drive the sleeve frame to rotate, and then conversion between the sealing plate and the device to be tested can be achieved. Therefore, the heat dissipation efficiency of the to-be-tested device can be tested within the specified temperature range.

Description

Technical Field

[0001] The present invention relates to the technical field of testing devices, and particularly to a heat dissipation efficiency testing device. Background Art

[0002] A heat dissipation efficiency testing device is a device used to evaluate the heat dissipation performance of electronic devices or materials. Its main functions include measuring the efficiency of different heat dissipation methods such as heat conduction, convection, and radiation. For existing computer heat dissipation mechanisms, such as graphics cards, fans, etc., when designing their styles, they not only need to calculate the theoretical heat dissipation efficiency but also need to conduct actual heat dissipation efficiency experiments. However, during the heat dissipation efficiency test, a single individual cannot be applied to all cases. It is necessary to uniformly produce a batch of the same style for heat dissipation efficiency testing. Moreover, the heat dissipation efficiency test requires constant-temperature heat dissipation, that is, the temperature of the device to be cooled should not vary much during each test. Therefore, a heat dissipation efficiency testing device is needed to conveniently complete the heat dissipation efficiency test. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies existing in the prior art. For existing heat dissipation mechanisms such as graphics cards and fans, when designing their styles, they not only need to calculate the theoretical heat dissipation efficiency but also need to conduct actual heat dissipation efficiency experiments. However, during the heat dissipation efficiency test, a single individual cannot be applied to all cases. It is necessary to uniformly produce a batch of the same style for heat dissipation efficiency testing. Moreover, the heat dissipation efficiency test requires constant-temperature heat dissipation, that is, the temperature of the device to be cooled should not vary much during each test. Therefore, a heat dissipation efficiency testing device is needed to conveniently complete the heat dissipation efficiency test.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A heat dissipation efficiency testing device includes a constant temperature device and a control mechanism. A heat dissipation hole is formed in the top of the constant temperature device, and an arc-shaped groove is formed in the top of the constant temperature device. A platform is fixedly connected to the outer surface of the constant temperature device. The control mechanism includes two brackets. A rotating hole is formed in one side of the bracket. A shaft rod is rotatably connected between the inner walls of the two rotating holes. A sleeve is fixedly sleeved on the outer surface of the shaft rod. A clamping mechanism is fixedly connected to the outer surface of the sleeve. A fixed frame is fixedly connected to one side of one of the brackets. A stepping motor is fixedly connected to one side of the fixed frame. The output end of the stepping motor is fixedly connected to one end of the shaft rod. A support shell is fixedly connected to one side of the sleeve. A fixing plate is fixedly connected to one side of the sleeve. A plurality of arc-shaped rods are fixedly connected to one side of the fixing plate. One end of the arc-shaped rod is fixedly connected to one side of the support shell. The clamping mechanism includes four support plates. One side of the support plate is fixedly connected to the outer surface of the sleeve. A sliding tube is slidably connected to the outer surface of the support plate. A device to be tested is arranged between one side of two of the sliding tubes. A sealing plate is fixedly connected between one side of the other two sliding tubes. A rotating wheel is rotatably connected to the outer surface of the sliding tube. The outer surface of the rotating wheel is slidably connected to the inner wall of the arc-shaped groove.

[0005] As a preferred embodiment, a fixing frame is fixedly sleeved on the outer surface of the support plate. A spring is slidably connected to the outer surface of the support plate. One end of the spring is fixedly connected to one side of the fixing frame. The other end of the spring is fixedly connected to one side of the sliding tube.

[0006] As a preferred embodiment, a connector is arranged on the inner wall of the support shell. A cover plate is fixedly installed on the inner wall of the support shell. A sliding hole is formed in one side of the cover plate. The inner wall of the sliding hole is slidably connected to the outer surface of the connector. A threaded wire is electrically connected to one side of the connector. The plug at one end of the threaded wire is electrically connected to the interface of the device to be tested.

[0007] As a preferred embodiment, a slider is slidably connected to the inner walls of two of the sliding tubes. A baffle is fixedly connected to one side of the slider. Two clamping blocks are fixedly connected to one side of the baffle.

[0008] As a preferred embodiment, a clamping plate is rotatably arranged between one side of two of the clamping blocks. A rotating groove is formed in one side of the clamping plate. A rotating rod is rotatably connected to the inner wall of the rotating groove. The other end of the rotating rod is rotatably connected to one side of the clamping block. A torsion spring is arranged on the outer surface of the rotating rod. One end of the torsion spring is fixedly connected to the inner wall of the rotating groove. The other end of the torsion spring is fixedly connected to one side of the clamping block.

[0009] As a preferred embodiment, a card slot adapted to the clamping plate is formed on one side of the two sliding tubes, and the inner wall of the card slot is slidably connected to the convex part of the clamping plate.

[0010] As a preferred embodiment, a mounting frame is fixedly connected to one side of the baffle, a sliding groove is formed on one side of the mounting frame, and the outer surface of the device to be measured is slidably connected to the inner wall of the sliding groove.

[0011] As a preferred embodiment, two connecting plates are fixedly connected between one sides of the two baffles.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0013] 1. In the present invention, the constant temperature value is set by the constant temperature device and sealed by the sealing plate, so that the temperature inside the constant temperature device is constant and the temperature change is small. The stepping motor in the control mechanism is used as the driving source to drive the sleeve frame to rotate, and then the conversion between the sealing plate and the device to be measured can be realized. Furthermore, the heat dissipation efficiency of the device to be measured can be tested within the specified temperature range. At the same time, through the cooperation of the rotating wheel and the arc-shaped groove, during the rotation of the sleeve frame, the rotation effect and damping effect of the rotating wheel can avoid the more gentle release of the elastic potential energy of the spring and facilitate the rotation of the sleeve frame. Through the mutual cooperation of the support shell and the fixed plate, and through the arc-shaped rod, the support shell and the fixed plate are fixedly connected to each other, thereby increasing the structural stability of the sleeve frame. The spring can drive the sliding tube to move towards the constant temperature device, so that when the device to be measured is located above the constant temperature device, it is more stable, avoiding the movement of the device to be measured, increasing the test rigor of the device to be measured. At the same time, the spring can also prevent the sliding tube from being taken out from the outer surface of the support plate, increasing the structural stability of the sliding tube.

[0014] 2. In the present invention, a power supply is arranged inside the support shell, and the lead of the connector is fixed by the cover plate, so that the position of the connector can be more stable. And through the extension and restoration of the threaded wire, it is convenient to control the connection between the plug and the device to be measured. The clamping plate and the card slot are clamped and fixed. Through the mutual cooperation between the slider and the sliding tube, after the slider enters the inner wall of the sliding tube, it can only move parallel. And through the clamping and fixing of the clamping plate and the card slot, the baffle can be prevented from being taken out. At the same time, through the cooperation of the clamping plate and the rotating rod, the clamping plate can rotate, so as to facilitate the replacement of different mounting frames. And through the torsion spring, a force towards the card slot can be given to the clamping plate, enabling the clamping plate to be tightly fixed to the card slot, and at the same time, it does not prevent the clamping plate from rotating away from the card slot by other forces, increasing the structural convenience and stability of the device. Through the mutual cooperation of the connecting plate and the mounting frame, the length of the heat dissipation hole can be extended, thereby avoiding the heat from flowing through the gap between the device to be measured and the constant temperature device. And through the sliding groove, it is convenient to install and take out the device to be measured, increasing the convenience of the equipment. Description of the Drawings

[0015] Figure 1 This is a three-dimensional structure diagram of a heat dissipation efficiency test device proposed by the present invention;

[0016] Figure 2 This is a three-dimensional structure diagram of the constant temperature device of a heat dissipation efficiency test device proposed by the present invention;

[0017] Figure 3 This is a three-dimensional structure diagram of the control mechanism of a heat dissipation efficiency test device proposed by the present invention;

[0018] Figure 4 This is an exploded three-dimensional structure diagram of the support shell of a heat dissipation efficiency test device proposed by the present invention;

[0019] Figure 5 This is an exploded three-dimensional structure diagram of the slider of a heat dissipation efficiency test device proposed by the present invention;

[0020] Figure 6 For the present invention Figure 5 An enlarged schematic view of part A in the figure.

[0021] Legend description:

[0022] 1. Constant temperature device; 2. Control mechanism; 3. Arc-shaped groove; 4. Heat dissipation holes; 5. Platform;

[0023] 21. Bracket; 22. Shaft rod; 23. Sleeve; 24. Fixed frame; 25. Stepper motor; 26. Support shell; 27. Fixed plate; 28. Arc-shaped rod; 29. Clamping mechanism;

[0024] 291. Support plate; 292. Fixed frame; 293. Spring; 294. Slide tube; 295. Connector; 296. Cover plate; 297. Threaded wire; 298. Runner; 299. Slider; 2910. Baffle; 2911. Clamping block; 2912. Card plate; 2913. Rotating rod; 2914. Torsion spring; 2915. Mounting frame; 2916. Chute; 2917. Device to be tested; 2918. Connecting plate; 2919. Card slot; 2920. Sealing plate. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment

[0027] As Figures 1-6As shown in the figure, the present invention provides a technical solution: a heat dissipation efficiency testing device, including a constant temperature device 1 and a control mechanism 2. A heat dissipation hole 4 is provided at the top of the constant temperature device 1, and an arc-shaped groove 3 is provided at the top of the constant temperature device 1. A platform 5 is fixedly connected to the outer surface of the constant temperature device 1. The control mechanism 2 includes two brackets 21. A rotating hole is provided on one side of the bracket 21. A shaft rod 22 is rotatably connected between the inner walls of the two rotating holes. A sleeve frame 23 is fixedly sleeved on the outer surface of the shaft rod 22. A clamping mechanism 29 is fixedly connected to the outer surface of the sleeve frame 23. A fixed frame 24 is fixedly connected to one side of one of the brackets 21. A stepping motor 25 is fixedly connected to one side of the fixed frame 24. The output end of the stepping motor 25 is fixedly connected to one end of the shaft rod 22. A support shell 26 is fixedly connected to one side of the sleeve frame 23. A fixing plate 27 is fixedly connected to one side of the sleeve frame 23. A plurality of arc-shaped rods 28 are fixedly connected to one side of the fixing plate 27. One end of the arc-shaped rod 28 is fixedly connected to one side of the support shell 26. The clamping mechanism 29 includes four support plates 291. One side of the support plate 291 is fixedly connected to the outer surface of the sleeve frame 23. A sliding tube 294 is slidably connected to the outer surface of the support plate 291. A device to be tested 2917 is arranged between one sides of two of the sliding tubes 294. A sealing plate 2920 is fixedly connected between one sides of the other two sliding tubes 294. A rotating wheel 298 is rotatably connected to the outer surface of the sliding tube 294. The outer surface of the rotating wheel 298 is slidably connected to the inner wall of the arc-shaped groove 3;

[0028] Through the above-mentioned embodiments, the constant temperature value is set by the constant temperature device 1 and sealed by the sealing plate 2920, so that the temperature inside the constant temperature device 1 is constant and the temperature change is small. And the stepping motor 25 in the control mechanism 2 is used as the driving source to drive the sleeve frame 23 to rotate, and then the conversion between the sealing plate 2920 and the device to be tested 2917 can be realized. Then the heat dissipation efficiency of the device to be tested 2917 can be tested within the specified temperature range. At the same time, through the cooperation of the rotating wheel 298 and the arc-shaped groove 3, during the rotation of the sleeve frame 23, the rotation effect and damping effect of the rotating wheel 298 can avoid the release of elastic potential energy of the spring 293 more gently and facilitate the rotation of the sleeve frame 23. And through the mutual cooperation of the support shell 26 and the fixing plate 27 and the fixed connection between the support shell 26 and the fixing plate 27 through the arc-shaped rod 28, the structural stability of the sleeve frame 23 is increased;

[0029] A fixed frame 292 is fixedly sleeved on the outer surface of the support plate 291. A spring 293 is slidably connected to the outer surface of the support plate 291. One end of the spring 293 is fixedly connected to one side of the fixed frame 292. The other end of the spring 293 is fixedly connected to one side of the sliding tube 294;

[0030] Through the above embodiments, the spring 293 can drive the sliding tube 294 to move towards the constant temperature device 1, so that when the device under test 2917 is located above the constant temperature device 1, it can be more stable, avoiding the movement of the device under test 2917, increasing the test rigor of the device under test 2917. At the same time, the spring 293 can also prevent the sliding tube 294 from being taken out from the outer surface of the support plate 291, increasing the structural stability of the sliding tube 294;

[0031] A connector 295 is arranged on the inner wall of the support shell 26. A cover plate 296 is fixedly installed on the inner wall of the support shell 26. A sliding hole is formed on one side of the cover plate 296. The inner wall of the sliding hole is slidably connected with the outer surface of the connector 295. One side of the connector 295 is electrically connected with a threaded wire 297. The plug at one end of the threaded wire 297 is electrically connected with the interface of the device under test 2917;

[0032] Through the above embodiments, by arranging a power supply inside the support shell 26 and fixing the wire of the connector 295 with the cover plate 296, the position of the connector 295 can be made more stable. And through the extension and restoration of the threaded wire 297, it is convenient to control the connection between the plug and the device under test 2917;

[0033] A slider 299 is slidably connected to the inner walls of two of the sliding tubes 294. One side of the slider 299 is fixedly connected with a baffle 2910. Two clamping blocks 2911 are fixedly connected to one side of the baffle 2910;

[0034] A clamping plate 2912 is rotatably arranged between the sides of two pairs of the clamping blocks 2911. A rotating groove is formed on one side of the clamping plate 2912. The inner wall of the rotating groove is rotatably connected with a rotating rod 2913. The other end of the rotating rod 2913 is rotatably connected with one side of the clamping block 2911. A torsion spring 2914 is arranged on the outer surface of the rotating rod 2913. One end of the torsion spring 2914 is fixedly connected with the inner wall of the rotating groove. The other end of the torsion spring 2914 is fixedly connected with one side of the clamping block 2911;

[0035] A clamping groove 2919 adapted to the clamping plate 2912 is formed on one side of two of the sliding tubes 294. The inner wall of the clamping groove 2919 is slidably connected with the convex part of the clamping plate 2912;

[0036] Through the above embodiments, the clamping and fixing are carried out through the clamping plate 2912 and the clamping groove 2919. Through the mutual cooperation between the sliding block 299 and the sliding tube 294, after the sliding block 299 enters the inner wall of the sliding tube 294, it can only move parallel. And through the clamping and fixing of the clamping plate 2912 and the clamping groove 2919, the baffle 2910 can be prevented from being taken out. At the same time, through the cooperation of the clamping plate 2912 and the rotating rod 2913, the clamping plate 2912 can rotate, so as to facilitate the replacement of different mounting brackets 2915. And through the torsion spring 2914, a force towards the clamping groove 2919 can be given to the clamping plate 2912, enabling the clamping plate 2912 to be firmly fixed to the clamping groove 2919, and at the same time, it does not prevent the clamping plate 2912 from rotating away from the clamping groove 2919 by other forces, increasing the structural convenience and stability of the device;

[0037] One side of the baffle 2910 is fixedly connected with a mounting bracket 2915. A sliding groove 2916 is formed on one side of the mounting bracket 2915, and the inner wall of the sliding groove 2916 is slidably connected with the outer surface of the device to be measured 2917;

[0038] Two connecting plates 2918 are fixedly connected between one sides of the two baffles 2910;

[0039] Through the above embodiments, through the mutual cooperation of the connecting plate 2918 and the mounting bracket 2915, the length of the heat dissipation hole 4 can be extended, thereby preventing heat from flowing through the gap between the device to be measured 2917 and the constant temperature device 1. And through the sliding groove 2916, it is convenient for the device to be measured 2917 to be installed and taken out, increasing the convenience of the equipment.

[0040] Working principle:

[0041] Such as Figures 1-6As shown, during use, the device 2917 to be tested is slid from the chute 2916 into the interior of the mounting bracket 2915. Then, the stepping motor 25 drives the shaft rod 22 to rotate. The rotation of the shaft rod 22 drives the sleeve bracket 23 to rotate. The rotation of the sleeve bracket 23 is cooperated with the support shell 26 and the fixed plate 27, and the support shell 26 and the fixed plate 27 are fixedly connected through the arc rod 28, thereby increasing the structural stability of the sleeve bracket 23. Furthermore, the rotation of the sleeve bracket 23 can stably drive the support plate 291 to rotate. The rotation of the support plate 291 drives the sliding tube 294 to rotate. The rotation of the sliding tube 294 drives the runner 298 to rotate. When one group of runners 298 rotates out from the inner wall of the arc groove 3, it will drive the corresponding sliding tube 294 to move towards the shaft rod 22, thereby stably separating the sealing plate 2920 from the heat dissipation hole 4. At the same time, when the other group of runners 298 contacts the platform 5, it will drive the corresponding sliding tube 294 to move towards the shaft rod 22. When the other group of runners 298 reaches the arc groove 3, due to the arc design of the runner 298 and the arc groove 3, the runner 298 will slowly slide into the interior of the arc groove 3, thereby making the baffle 2910 contact the top of the constant temperature device 1. Set the constant temperature value through the constant temperature device 1 and seal it with the sealing plate 2920 to keep the temperature inside the constant temperature device 1 constant and the temperature change small. And using the stepping motor 25 in the control mechanism 2 as the driving source to drive the sleeve bracket 23 to rotate, the conversion between the sealing plate 2920 and the device 2917 to be tested can be realized, and then the heat dissipation efficiency of the device 2917 to be tested can be measured within the specified temperature range. At the same time, through the cooperation of the runner 298 and the arc groove 3, during the rotation of the sleeve bracket 23, the rotation effect and damping effect of the runner 298 can avoid the release of elastic potential energy of the spring 293 more gently and facilitate the rotation of the sleeve bracket 23. And through the cooperation of the support shell 26 and the fixed plate 27, and the support shell 26 and the fixed plate 27 are fixedly connected through the arc rod 28, thereby increasing the structural stability of the sleeve bracket 23. Through the cooperation of the connecting plate 2918 and the mounting bracket 2915, the length of the heat dissipation hole 4 can be extended, thereby preventing heat from flowing through the gap between the device 2917 to be tested and the constant temperature device 1. By setting a power supply inside the support shell 26 and fixing the wire of the connector 295 with the cover plate 296, the position of the connector 295 can be made more stable, and through the extension and restoration of the threaded wire 297, it is convenient to control the connection between the plug and the device 2917 to be tested. After connecting the plug and the device 2917 to be tested, the test can be carried out. When it is necessary to replace the device 2917 to be tested, the stepping motor 25 can be used to move back and forth. When the sealing plate 2920 reaches the heat dissipation hole 4, the constant temperature device 1 can be heated more quickly, and at this time, the device 2917 to be tested can be slid out and replaced. When it is necessary to replace different mounting brackets 2915, they are snap-fitted and fixed through the clamping plate 2912 and the clamping groove 2919. Through the cooperation between the slider 299 and the sliding tube 294, after the slider 299 enters the inner wall of the sliding tube 294, it can only move parallel.It is fixed by the engagement of the clamping plate 2912 and the clamping groove 2919, which can prevent the baffle plate 2910 from being taken out. At the same time, through the cooperation of the clamping plate 2912 and the rotating rod 2913, the clamping plate 2912 can rotate, so as to facilitate the replacement of different mounting brackets 2915. The torsion spring 2914 can apply a force to the clamping plate 2912 towards the clamping groove 2919, enabling the clamping plate 2912 to be firmly fixed to the clamping groove 2919. At the same time, it does not prevent the clamping plate 2912 from rotating by other forces to move the clamping plate 2912 away from the clamping groove 2919. After the clamping plate 2912 is away from the clamping groove 2919, the mounting bracket 2915 can be taken out.

[0042] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A heat dissipation efficiency test device, comprising a constant temperature device (1) and a control mechanism (2), characterized in that: The top of the constant temperature device (1) is provided with heat dissipation holes (4), and the top of the constant temperature device (1) is provided with an arc-shaped groove (3). The outer surface of the constant temperature device (1) is fixedly connected with a platform (5). The control mechanism (2) includes two brackets (21). A rotating hole is provided on one side of the bracket (21). A shaft rod (22) is rotatably connected between the inner walls of the two rotating holes. A sleeve frame (23) is fixedly sleeved on the outer surface of the shaft rod (22). A clamping mechanism (29) is fixedly connected to the outer surface of the sleeve frame (23). A fixed frame (24) is fixedly connected to one side of one of the brackets (21). A stepping motor (25) is fixedly connected to one side of the fixed frame (24). The output end of the stepping motor (25) is fixedly connected to one end of the shaft rod (22). A support shell (26) is fixedly connected to one side of the sleeve frame (23). A fixing plate (27) is fixedly connected to one side of the sleeve frame (23). A plurality of arc-shaped rods (28) are fixedly connected to one side of the fixing plate (27). One end of the arc-shaped rod (28) is fixedly connected to one side of the support shell (26). The clamping mechanism (29) includes four support plates (291). One side of the support plate (291) is fixedly connected to the outer surface of the sleeve frame (23). A sliding tube (294) is slidably connected to the outer surface of the support plate (291). A device to be measured (2917) is arranged between one sides of two of the sliding tubes (294). A sealing plate (2920) is fixedly connected between one sides of the other two sliding tubes (294). A rotating wheel (298) is rotatably connected to the outer surface of the sliding tube (294). The outer surface of the rotating wheel (298) is slidably connected to the inner wall of the arc-shaped groove (3).

2. The heat dissipation efficiency testing device according to claim 1, characterized in that: A fixing frame (292) is fixedly sleeved on the outer surface of the support plate (291). A spring (293) is slidably connected to the outer surface of the support plate (291). One end of the spring (293) is fixedly connected to one side of the fixing frame (292). The other end of the spring (293) is fixedly connected to one side of the sliding tube (294).

3. The heat dissipation efficiency testing device according to claim 1, characterized in that: A connector (295) is arranged on the inner wall of the support shell (26). A cover plate (296) is fixedly installed on the inner wall of the support shell (26). A sliding hole is provided on one side of the cover plate (296). The inner wall of the sliding hole is slidably connected to the outer surface of the connector (295). One side of the connector (295) is electrically connected to a threaded wire (297). The plug at one end of the threaded wire (297) is electrically connected to the interface of the device to be measured (2917).

4. The heat dissipation efficiency testing device according to claim 1, characterized in that: Sliders (299) are slidably connected to the inner walls of two of the sliding tubes (294). A baffle (2910) is fixedly connected to one side of the slider (299). Two clamping blocks (2911) are fixedly connected to one side of the baffle (2910).

5. The heat dissipation efficiency testing device according to claim 4, characterized in that: A clamping plate (2912) is rotatably arranged between one sides of two adjacent clamping blocks (2911). A rotating groove is formed on one side of the clamping plate (2912). A rotating rod (2913) is rotatably connected to the inner wall of the rotating groove. The other end of the rotating rod (2913) is rotatably connected to one side of the clamping block (2911). A torsion spring (2914) is arranged on the outer surface of the rotating rod (2913). One end of the torsion spring (2914) is fixedly connected to the inner wall of the rotating groove, and the other end of the torsion spring (2914) is fixedly connected to one side of the clamping block (2911).

6. The heat dissipation efficiency testing device according to claim 5, characterized in that: A clamping groove (2919) adapted to the clamping plate (2912) is formed on one side of two of the sliding tubes (294). The convex part of the clamping plate (2912) is slidably connected to the inner wall of the clamping groove (2919).

7. The heat dissipation efficiency testing device according to claim 4, characterized in that: An installation frame (2915) is fixedly connected to one side of the baffle plate (2910). A sliding groove (2916) is formed on one side of the installation frame (2915). The outer surface of the device to be measured (2917) is slidably connected to the inner wall of the sliding groove (2916).

8. The heat dissipation efficiency testing device according to claim 7, wherein: Two connecting plates (2918) are fixedly connected between one sides of two baffle plates (2910).

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