A heat pipe performance test system

Abstract

This utility model discloses a heat pipe performance testing system, including a cold-end module and a hot-end module. The cold-end module includes a heat dissipation platform, on which is provided a heat-conducting base in thermal contact with the condensation section of the heat pipe and a heat dissipation device thermally connected to the heat-conducting base. The hot-end module includes a heating platform, on which is provided a heat-conducting body in thermal contact with the evaporation section of the heat pipe and a heating element thermally connected to the heat-conducting body. A clamping mechanism is provided above both the heat dissipation platform and the heating platform, and the clamping mechanism includes an angle adjustment component. This structure achieves high-precision testing of the heat pipe's heat transfer performance by adjusting the clamping angle of the conformal pressure head through the angle adjustment component. The cold-end module employs a flipping mechanism, allowing the heat dissipation platform to be adjusted at multiple angles in space, improving clamping uniformity and testing accuracy. The hot-end module adopts a multi-heat-conducting body design and uses a bidirectional adjustment structure to adjust the position of the corresponding heat-conducting bodies to meet the testing needs of multiple heat sources and improve the applicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of heat pipe performance testing technology, and in particular to a heat pipe performance testing system. Background Technology

[0002] As a highly efficient heat transfer element, the performance testing of heat pipes requires simulating actual heat conduction and dissipation conditions. Existing testing equipment has the following problems:

[0003] Poor clamping compatibility: In practical applications, the evaporator and condenser ends of heat pipes often have complex curved shapes or asymmetrical structures. Traditional clamping mechanisms' conformal pressure heads cannot dynamically adjust the clamping angle, resulting in uneven pressure distribution between the heat pipe and the heat-conducting base or conductor. For curved heat pipes, poor local contact significantly reduces heat transfer efficiency, affecting the accuracy of test data. Furthermore, the relative positions of the heat dissipation and heating platforms in the cold and hot end modules are relatively rigid. During heat pipe installation, it must simultaneously adhere to both the heat-conducting base and the heat-conducting body; however, the difference in the curved structure between the condenser and evaporator ends of the heat pipe may lead to:

[0004] With one end attached and the other end suspended, the heat pipe needs to be manually bent to fit the fixed position, which may cause heat pipe deformation or increase interface thermal resistance.

[0005] It is difficult to adapt to different testing scenarios and can only be adapted to heat pipes of specific shapes, and cannot be compatible with multiple operating conditions (such as different tilt angles, curvatures or installation directions).

[0006] Low testing efficiency: For heat pipes of different specifications, the test platform needs to be disassembled and readjusted frequently, which is complicated and has poor repeatability, making it difficult to meet the needs of batch testing or rapid verification. Utility Model Content

[0007] To solve the above-mentioned technical problems, this utility model provides a heat pipe performance testing system.

[0008] The technical solution of this utility model is: it includes a hot end module and a cold end module that can be arranged relative to each other;

[0009] The cold end module includes a heat dissipation platform, on which a heat-conducting base is in thermal contact with the condensation section of the heat pipe and a heat dissipation device is in thermal connection with the heat-conducting base.

[0010] The hot end module includes a heating platform, on which a heat conductor is provided that is in thermal contact with the evaporation end of the heat pipe and a heating element is in thermal connection with the heat conductor.

[0011] A clamping mechanism is provided above the heat dissipation platform and the heating platform respectively, and the clamping mechanism includes:

[0012] Drive components;

[0013] The conformal pressure head, driven by the driving element, presses the heat pipe onto the corresponding platform;

[0014] Angle adjustment component; used to adjust the pressing angle of the profile pressing head around the axis.

[0015] Preferably, the angle adjustment assembly includes an adjustment plate located at the output end of the drive element, a rotating adjustment block rotatably located below the adjustment plate, and a locking member; the adjustment plate is provided with an oblong hole, and the rotating adjustment block is provided with an adjustment hole; the locking member passes through the oblong hole and the adjustment hole to achieve locking.

[0016] Preferably, an adaptive adjustment component is provided between the contouring pressure head and the rotary adjustment block; the upper end of the contouring pressure head is provided with a connecting part, and the adaptive adjustment component includes a limiting hole extending vertically on the connecting part. The connecting part and the rotary adjustment block are connected by a limiting element in the limiting hole, and the contouring pressure head achieves adaptive displacement relative to the rotary adjustment block in the vertical direction through the limiting hole.

[0017] Preferably, it also includes a temperature monitoring system, wherein the lower surface of the conforming pressure head is provided with a heat pipe conforming groove that matches the outer contour of the heat pipe; the temperature monitoring system includes temperature sensing holes arranged in an array on both sides of the radial direction of the heat pipe conforming groove; a detachable temperature sensing probe is provided in the temperature sensing hole; the temperature sensing probe is connected to an external temperature controller through a signal line.

[0018] Preferably, the cold end module further includes a first support substrate, and the heat dissipation platform is rotatably mounted on the first support substrate via a flipping mechanism.

[0019] Preferably, the flipping mechanism includes a flipping panel, a rotary table, and a flipping locking assembly;

[0020] The rotary table is disposed between the flip panel and the first support base plate, and a first pivot boss and a second pivot boss are coaxially provided on both sides of the rotary table.

[0021] The first pivot boss is rotatably inserted through the shaft hole of the first support substrate, and the second pivot boss cooperates with the limiting groove on the end face of the flip panel.

[0022] Preferably, the first support base plate is provided with an arc-shaped guide groove; a support rod is inserted into the arc-shaped guide groove, one end of the support rod is threaded to the first mounting hole of the flip panel, and the other end is provided with a manual handle;

[0023] The support rod is driven to move along the arc-shaped guide groove by rotating the manual handle, which in turn drives the turntable and the flip panel to rotate synchronously.

[0024] Preferably, the flip-locking assembly includes a locking screw hole that extends axially through the rotary table; the locking screw hole corresponds coaxially with the second mounting hole on the flip panel; the rotary table and the flip panel are locked by a locking bolt passing through the locking screw hole and the second mounting hole.

[0025] Preferably, the heat dissipation device includes a water-cooled plate integrated below the heat-conducting base, the water-cooled plate having microchannels inside, and the microchannels being connected to an external constant temperature circulation device through cooling water inlets and outlets opened on the water-cooled plate.

[0026] Preferably, the heating platform is provided with multiple sets of independently adjustable heat conductors, and the position of each heat conductor is adjusted through a bidirectional adjustment structure.

[0027] The beneficial technical effects of this utility model are:

[0028] The angle adjustment component enables multi-angle adjustment of the contouring indenter around the axis, adapting to different heat pipe bending shapes and different testing scenario requirements.

[0029] The adaptive adjustment component allows the profiled pressure head to move adaptively in the vertical direction, ensuring uniform distribution of clamping force and preventing heat pipe deformation.

[0030] The cold end module employs a flipping mechanism, which supports multi-angle adjustment of the heat dissipation platform within the space. This allows the condenser and evaporator ends of the heat pipe to adaptively fit the heat-conducting base and heat conductor, eliminating the need for forced bending of the heat pipe and improving the uniformity of compression and testing accuracy.

[0031] The hot end module adopts a multi-heat conductor design. The position of the corresponding heat conductors can be adjusted through a bidirectional adjustment structure, which can flexibly activate a specific number and position of heat conductors to meet the flexibility of multi-heat source testing. It can use single heat source, dual heat source or multi-heat source combination testing to meet different heat flow distribution scenarios and improve the applicability of the device. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0033] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0034] Figure 3 This is an exploded schematic diagram of the flipping mechanism of this utility model;

[0035] Figure 4 This is a schematic diagram of the specific structure of the angle adjustment component of this utility model;

[0036] Figure 5 This is an exploded view of the specific structure of the adaptive adjustment component of this utility model;

[0037] Figure 6 This is a schematic diagram of the relevant structure of the temperature monitoring system of this utility model;

[0038] Figure 7 This is a schematic diagram of the specific structure of the bidirectional adjustment structure of this utility model;

[0039] in:

[0040] 100. Hot end module; 11. Second mounting base; 12. Second support base; 13. Heating platform; 14. Lifting assembly; 141. Lead screw; 142. Nut; 143. Linear guide rail; 15. Heat conductor; 16. Adjustment seat; 17. Bidirectional adjustment structure; 171. Radial through hole; 172. Radial slotted hole; 173. Axial fixing hole;

[0041] 200. Cold end module; 21. First mounting base; 22. First support base plate; 23. Heat dissipation platform; 24. Flipping mechanism; 241. Flipping panel; 242. Rotary disk; 243. First pivot boss; 244. Second pivot boss; 245. Arc-shaped guide groove; 246. Support rod; 247. Locking screw hole; 248. Locking bolt; 25. Heat-conducting base; 26. Heat dissipation device;

[0042] 300. Clamping mechanism; 31. Contouring pressure head; 32. Driving element; 33. Angle adjustment assembly; 331. Adjusting plate; 332. Waist-shaped hole; 333. Rotary adjusting block; 334. Locking element; 34. Adaptive adjustment assembly; 341. Trapezoidal slide; 342. Adjusting slider; 343. Mounting slot; 344. Limiting hole;

[0043] 400. Temperature monitoring system; 41. Temperature sensing port. Detailed Implementation

[0044] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0045] like Figures 1 to 2 As shown, the heat pipe performance testing system of this utility model includes a hot end module 100 and a cold end module 200 that can achieve relative displacement. The hot end module 100 is located in the evaporation section of the heat pipe, and the cold end module 200 is located in the condensation section of the heat pipe.

[0046] The cold-end module 200 includes a first mounting base 21, a first supporting substrate 22, and a rotatable heat dissipation platform 23. The heat dissipation platform 23 is rotatably mounted on the first supporting substrate 22 via a flipping mechanism 24 to enable quick installation and removal of the heat pipe and adjustment of contact pressure. The heat dissipation platform 23 is provided with a thermally conductive base 25 and a heat dissipation device 26. The thermally conductive base 25 is in close contact with the condensation section of the heat pipe; the heat dissipation device 26 includes a water-cooled plate integrated below the thermally conductive base 25, the water-cooled plate is provided with cooling water inlet and outlet, and its internal microchannels are connected to an external constant temperature circulation device through the cooling water inlet and outlet to achieve efficient heat removal.

[0047] like Figure 3 The flipping mechanism 24 includes a flipping panel 241 for supporting the heat dissipation platform 23, a rotary disk 242, and a flipping locking assembly. The rotary disk 242 is disposed between the opposing end faces of the flipping panel 241 and the first support substrate 22. The two opposite sides of the rotary disk 242 are coaxially provided with a first pivot boss 243 and a second pivot boss 244. The first pivot boss 243 is rotatably inserted through the shaft hole of the first support substrate 22; the second pivot boss 244 cooperates with the limiting groove on the end face of the flipping panel 241. The first support base plate 22 is provided with a through shaft hole and an arc-shaped guide groove 245. A support rod 246 is inserted into the arc-shaped guide groove 245. One end of the support rod 246 passes through the turntable 242 and is threaded to the first mounting hole of the flip panel 241. The other end is provided with a manual handle. By applying a driving force to the manual handle, the support rod 246 slides along the arc-shaped guide groove 245, driving the turntable 242 and the flip panel 241 to rotate synchronously.

[0048] The flip-locking assembly includes a locking screw hole 247 that extends axially through the rotary table 242; the locking screw hole 247 is coaxially corresponding to the second mounting hole provided on the opposite end face of the flip panel 241. After the flip panel 241 reaches the preset flip angle, the locking bolt 248 passes through the locking screw hole 247 and the second mounting hole of the rotary table 242 to achieve rigid locking.

[0049] The heating module 100 includes a second mounting base 11, a second support base 12, and a heating platform 13. The heating platform 13 is mounted on the first support base 22 in a height-adjustable manner via a lifting assembly 14. The heating platform 13 is provided with a heat conductor 15 and a heating element thermally connected to the heat conductor 15. In this embodiment, the heat conductor 15 is a heating copper block, and the heating element is a heating rod. The heating copper block has mounting holes inside for the heating rod to be embedded. The heating rod provides a stable heat source to the heating copper block through a temperature control device.

[0050] The lifting assembly 14 includes a drive motor, a lead screw 141 that is connected to the output end of the drive motor, a nut 142 that is threadedly engaged with the lead screw 141, and a linear guide rail 143 that is vertically mounted on the second support base plate 12. The lead screw 141 is vertically mounted and its two ends are rotatably mounted on the second support base plate 12 via bearings. The heating platform 13 is fixedly connected to the nut 142 via a vertical panel and moves up and down vertically as the nut 142 moves.

[0051] During operation, the drive motor starts, causing the lead screw 141 to rotate. The nut 142 moves along the axial direction of the lead screw 141 under the constraint of the linear guide rail 143, thereby driving the vertical panel and heating platform 13 to rise and fall vertically.

[0052] Furthermore, a pressing mechanism 300 is provided above both the heat dissipation platform 23 and the heating platform 13. The pressing mechanism 300 includes a contour pressing head 31, a driving element 32, and an angle adjustment component 33. Driven by the driving element 32, the contour pressing head 31 achieves relative displacement with respect to the heat dissipation platform 23, thereby pressing the heat pipe onto the heat dissipation platform 23. In this embodiment, the driving element 32 is a driving cylinder. The angle adjustment component 33 is used to adjust the pressing angle of the contour pressing head 31.

[0053] Specifically, such as Figure 4 The angle adjustment assembly 33 includes an adjustment plate 331 located at the end of the piston rod of the drive cylinder, multiple oblong holes 332, a rotating adjustment block 333 rotatably disposed below the adjustment plate 331, and a locking member 334. The multiple oblong holes 332 are spaced apart on the adjustment plate 331. The end face of the rotating adjustment block 333 opposite to the adjustment plate 331 has several adjustment holes. The locking member 334 passes through the oblong holes 332 and the corresponding adjustment holes. The locking member 334 is an adjustment bolt. By loosening the adjustment bolt, the rotating adjustment block 333 can rotate around its axis by a certain angle, causing the contour pressure head 31 located below the rotating adjustment block 333 to synchronously adjust the pressing angle. After adjustment, the angle is locked by the adjustment bolt.

[0054] Furthermore, such as Figure 5An adaptive adjustment component 34 is further provided between the contouring pressure head 31 and the rotary adjustment block 333. The adaptive adjustment component 34 includes a trapezoidal groove 341 recessed on the lower surface of the rotary adjustment block 333 and an adjustment slider 342 that slides in cooperation with the trapezoidal groove 341. The adjustment slider 342 can move along the length of the trapezoidal groove 341. The lower surface of the adjustment slider 342 is provided with a recessed mounting groove 343. The two opposite groove walls of the mounting groove 343 are provided with coaxial through holes. The upper end of the contouring pressure head 31 is provided with a connecting part that fits into the mounting groove 343. The connecting part is provided with a limiting hole 344 extending in the vertical direction. The contouring pressure head 31 and the adjustment slider 342 are connected by a limiting member passing through the through hole and the limiting hole 344. When the contouring indenter 31 contacts the heat pipe, under pressure, the connecting part can undergo a slight displacement along the extension direction of the limiting hole 344, allowing the contouring indenter 31 to form an elastic adaptive contact with the heat pipe, avoiding rigid impact. An elastic element can be installed inside the limiting hole 344 to further enhance the elastic adaptive capability.

[0055] It also includes a temperature monitoring system 400, such as Figure 6 The temperature monitoring system 400 includes a plurality of temperature sensing holes 41 arranged on both sides of the heat pipe along the radial direction on the conformal pressure head 31, and detachable temperature sensing probes disposed in the temperature sensing holes 41; the plurality of temperature sensing holes 41 are arranged in an array, and the temperature sensing probes are connected to an external temperature controller through probe signal lines. Under the action of the pressing mechanism 300, the detection end of the temperature sensing probe is elastically pressed against the corresponding temperature measuring point on the heat pipe, and then the axial temperature distribution data is obtained through the axially distributed temperature sensing probe group; temperature difference compensation measurement is achieved through the radially distributed temperature sensing probes.

[0056] The temperature probe directly contacts the surface of the point to be measured, reducing environmental interference, resulting in high measurement accuracy and better stability. Moreover, the temperature probe can be added or removed according to the number of measurement points, and it is easy to replace, thus reducing costs.

[0057] In this embodiment, the heating platform 13 is provided with multiple sets of independently adjustable heat conductors 15. Each heat conductor 15 is mounted on the heating platform 13 via an adjusting seat 16, and its position is adjusted via a bidirectional adjusting structure 17. Figure 7The bidirectional adjustment structure 17 includes a radial adjustment component and an axial adjustment component. The radial adjustment component includes radial through holes 171 arranged radially on the heating platform 13 and radial waist holes 172 on the adjustment seat 16. The radial waist holes 172 cooperate with the radial through holes 171 to move the adjustment seat to a set position in the radial direction. Radial positioning is achieved by fasteners passing through the radial waist holes 172 and the corresponding radial through holes 171. The axial adjustment component includes an axial fixing hole 173 on the adjustment seat 16, which extends along the axial direction of the heat pipe. Fasteners pass through the heat conductor 15 and the axial fixing hole 173. The axial displacement of the heat conductor 15 is adjusted by the position of the fasteners in the axial fixing hole 173.

[0058] With the bidirectional adjustment structure 17, a specific number of heat conductors 15 can be flexibly selected (such as a single heat source, dual heat sources, or a combination of multiple heat sources), and the number and spatial distribution of heat sources can be flexibly configured to meet diverse testing needs. At the same time, by adjusting the position of the heat conductors 15, heat pipes of different lengths, diameters, or bending shapes can be adapted without changing the fixture.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A heat pipe performance testing system, comprising a hot-end module (100) and a cold-end module (200) that can be arranged opposite to each other; characterized in that: The cold end module (200) includes a heat dissipation platform (23), on which a heat-conducting base (25) is in thermal contact with the condensation section of the heat pipe and a heat dissipation device (26) is in thermal connection with the heat-conducting base (25). The hot end module (100) includes a heating platform (13), on which a heat conductor (15) is in thermal contact with the evaporation end of the heat pipe and a heating element is in thermal connection with the heat conductor (15). A clamping mechanism (300) is provided above the heat dissipation platform (23) and the heating platform (13), respectively. The clamping mechanism (300) includes: Drive element (32); The conformal pressure head (31) presses the heat pipe onto the corresponding platform under the drive of the driving element (32); Angle adjustment component (33); used to adjust the pressing angle of the contour pressing head (31) around the axis.

2. The heat pipe performance testing system according to claim 1, characterized in that: The angle adjustment assembly (33) includes an adjustment plate (331) located at the output end of the drive element (32), a rotating adjustment block (333) rotatably located below the adjustment plate (331), and a locking member (334); the adjustment plate (331) is provided with a waist-shaped hole (332), and the rotating adjustment block (333) is provided with an adjustment hole; the locking member (334) passes through the waist-shaped hole (332) and the adjustment hole to achieve locking.

3. The heat pipe performance testing system according to claim 2, characterized in that: An adaptive adjustment component (34) is provided between the contouring pressure head (31) and the rotary adjustment block (333); the upper end of the contouring pressure head (31) is provided with a connecting part, and the adaptive adjustment component (34) includes a limiting hole (344) extending vertically on the connecting part. The connecting part and the rotary adjustment block (333) are connected by a limiting member in the limiting hole (344), and the contouring pressure head (31) achieves adaptive displacement relative to the rotary adjustment block (333) in the vertical direction through the limiting hole (344).

4. The heat pipe performance testing system according to claim 1, characterized in that: It also includes a temperature monitoring system (400), wherein the lower surface of the conforming head (31) is provided with a heat pipe conforming groove that matches the outer contour of the heat pipe; the temperature monitoring system (400) includes an array of temperature sensing holes (41) arranged on both sides of the heat pipe conforming groove; a detachable temperature sensing probe is provided in the temperature sensing hole (41); the temperature sensing probe is connected to an external temperature controller through a signal line.

5. The heat pipe performance testing system according to claim 1, characterized in that: The cold end module (200) also includes a first support substrate (22), and the heat dissipation platform (23) is rotatably mounted on the first support substrate (22) via a flipping mechanism (24).

6. The heat pipe performance testing system according to claim 5, characterized in that: The flipping mechanism (24) includes a flipping panel (241), a rotary table (242), and a flipping locking assembly; The rotary table (242) is disposed between the flip panel (241) and the first support base plate (22), and a first pivot boss (243) and a second pivot boss (244) are coaxially provided on both sides. The first pivot boss (243) is rotatably inserted through the shaft hole of the first support substrate (22), and the second pivot boss (244) cooperates with the limiting groove on the end face of the flip panel (241).

7. A heat pipe performance testing system according to claim 6, characterized in that: The first support base plate (22) is provided with an arc-shaped guide groove (245); a support rod (246) is inserted in the arc-shaped guide groove (245), one end of the support rod (246) is threaded to the first mounting hole of the flip panel (241), and the other end is provided with a manual handle; The support rod (246) is driven to move along the arc-shaped guide groove (245) by rotating the manual handle, which drives the turntable (242) and the flip panel (241) to rotate synchronously.

8. A heat pipe performance testing system according to claim 7, characterized in that: The flip-locking assembly includes a locking screw hole (247) axially extending through the rotary table (242); the locking screw hole (247) is coaxially corresponding to the second mounting hole on the flip panel (241); the rotary table (242) and the flip panel (241) are locked by a locking bolt (248) passing through the locking screw hole (247) and the second mounting hole.

9. A heat pipe performance testing system according to claim 1, characterized in that: The heat dissipation device (26) includes a water-cooled plate integrated under the heat-conducting base (25). The water-cooled plate has a microchannel inside, and the microchannel is connected to an external constant temperature circulation device through a cooling water inlet and outlet on the water-cooled plate.

10. A heat pipe performance testing system according to claim 1, characterized in that: The heating platform (13) is provided with multiple sets of independently adjustable heat conductors (15), and each heat conductor (15) can be adjusted in position through a bidirectional adjustment structure (17).

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