Detection device for cold plate embedded with heat pipe

By designing a detection device including a base, carrier plate, gantry, cylinder, metal block, probe, heating rod and thermocouple, the problem of difficulty in checking the heat transfer capability of the cold plate area in the prior art is solved, and high Good detection effect of accuracy and stability.

CN222506196UActive Publication Date: 2025-02-18MILLI ELECTROMECHANICAL (SUZHOU) CO LTD
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Patent Information

Application Number
CN202420524636.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-19
Publication Date
2025-02-18
Estimated Expiration
2034-03-19

AI Technical Summary

Technical Problem

The prior art is difficult to effectively verify the heat transfer capability of the area of ​​the cold plate buried with heat pipes, including whether the performance of the heat pipes, substrates and their connections meets the needs.

Method used

Design a detection device, including a base, carrier plate, gantry, cylinder, metal block, probe, heating rod and thermocouple, by simulating the heat of the object to be cooled, transfer the heat to the installation and non-installation areas of the cold plate , detect temperature differences to judge the regional heat transfer capability.

Benefits of technology

It realizes heat transfer capability detection in cold plate areas with high precision and stability, and can determine whether the heat pipes, substrates and their connections meet the needs, improving the detection efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a detection device for a cold plate embedded with a heat pipe. The detection device for the cold plate embedded with the heat pipe comprises a base; the carrier plate is arranged on the base; the portal frame comprises two stand columns located on the left side and the right side of the carrying plate and a cross beam connected with the top ends of the two stand columns. The first air cylinder comprises a first main body and a liftable first piston, and the first main body is arranged on the cross beam; the metal block is connected with the first piston, and the metal block can abut against the mounting area of the base plate; the probe is connected with the first piston, and the probe can abut against the non-mounting area of the substrate; the heating rod is inserted into the through hole of the metal block, and the power assembly can provide preset power for the heating rod; the first thermocouple is connected with the metal block so as to detect the first temperature of the metal block, and the second thermocouple is connected with the probe so as to detect the second temperature of the probe. The detection device provided by the utility model is high in detection precision and high in efficiency.
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Description

Technical Field

[0001] The utility model relates to the field of radiators, in particular to a detection device for a cold plate with a heat pipe buried therein. Background Art

[0002] Typically, grooves are formed on the surface of the substrate of the cold plate, and heat pipes are buried in the grooves. The heat pipes have a high regional heat transfer efficiency, so that the cold plate has a high regional heat transfer efficiency and can quickly transfer heat from the high-temperature area of ​​the cold plate (the area connected to the object to be cooled, that is, the installation area of ​​the cold plate, where the object to be cooled includes the area connected to chips, power devices / modules, etc.) to the low-temperature area (that is, the non-installation area of ​​the cold plate), thereby increasing the heat dissipation efficiency of the object to be cooled.

[0003] The performance of the heat pipe itself, the performance of the substrate itself, and the contact thermal resistance between the heat pipe and the groove all affect the regional heat transfer capacity of the cold plate of the hot cold plate. How to check whether the regional heat transfer capacity of the cold plate meets the requirements is a problem to be solved. Utility Model Content

[0004] In view of the above problems in the prior art, the purpose of the utility model is to provide a detection device for a cold plate with embedded heat pipes, which can determine whether the heat pipes, substrates and connections between the cold plate meet the requirements, and has high detection accuracy, good stability and high efficiency.

[0005] In order to solve the above problems, the utility model provides a detection device for a cold plate with a heat pipe buried therein, the cold plate comprising a substrate and a heat pipe buried on the substrate, the surface of the substrate is formed with an installation area for connecting an object to be cooled and a non-installation area, the two ends of the heat pipe are respectively located in the installation area and the non-installation area, the detection device for the cold plate with a heat pipe buried therein comprises:

[0006] Base;

[0007] A carrier plate, the carrier plate is arranged on the base, and a receiving area capable of receiving a cold plate is formed on the carrier plate;

[0008] A gantry, the gantry is mounted on the base, the gantry comprises two columns located on the left and right sides of the carrier plate and a crossbeam connecting the top ends of the two columns, the crossbeam is located above the carrier plate;

[0009] a first cylinder, the first cylinder comprising a first body and a first piston that can be raised and lowered, the first body being disposed on the crossbeam;

[0010] a metal block, the metal block being connected to the first piston, the metal block being formed with a horizontal through hole, and the metal block being capable of abutting against the mounting area of ​​the substrate;

[0011] a probe, the probe being connected to the first piston and spaced apart from the metal block, the probe being capable of abutting against a non-installation area of ​​the substrate;

[0012] A heating rod and a power component, wherein the heating rod is inserted into the through hole of the metal block, and the power component can provide a predetermined power to the heating rod;

[0013] A first thermocouple and a second thermocouple, wherein the first thermocouple is connected to the metal block to detect a first temperature of the metal block, and the second thermocouple is connected to the probe to detect a second temperature of the probe.

[0014] Furthermore, the cold plate further comprises a fin, wherein the fin is connected to a side of the substrate away from the heat pipe, and the detection device further comprises:

[0015] A fan is located on the carrier plate and at the rear side of the accommodating area.

[0016] Furthermore, the detection device also includes:

[0017] The enclosing plate is mounted on the carrier plate and is located between the accommodating area and the fan. The enclosing plate and the carrier plate can form an air outlet passage with front and rear end openings, and the front section of the enclosing plate can abut against the rear end of the cold plate.

[0018] There are a plurality of fans, and the plurality of fans are arranged at a rear side of the air outlet passage at intervals along the left-right direction.

[0019] Furthermore, the detection device also includes:

[0020] Two baffles, both of which are located on the carrier plate and respectively on both sides of the accommodating area, and the two baffles can be close to the left and right ends of the cold plate respectively.

[0021] Furthermore, the detection device also includes:

[0022] Two second cylinders, the two second cylinders are respectively arranged corresponding to the left and right edge areas of the cold plate, the second cylinders include a second body and a second piston, the second body is arranged on the crossbeam, and the second piston can be lifted and lowered;

[0023] Two buffer blocks, the tops of the two buffer blocks are respectively connected to the bottoms of the two second pistons, and the second pistons can abut against the cold plate through the buffer blocks.

[0024] Furthermore, there are two gantries, which are spaced apart from each other in front and back, and two of the second cylinders and two of the buffer blocks are arranged on each of the gantry.

[0025] Further, the detection device further comprises a moving component, the carrier is connected to the base via the moving component, the carrier comprises a metal plate and a bakelite board located above the metal plate, the carrier carries the cold plate via the bakelite board, and the moving component comprises:

[0026] Two rails, the two rails are longitudinally laid on the base and spaced apart in the transverse direction and are respectively adjacent to the two pillars;

[0027] Two groups of sliders are respectively matched with the two tracks, and the two groups of sliders are respectively connected to the bottom of the carrier plate.

[0028] Furthermore, the detection device also includes an elastic component, and the elastic component is arranged between the metal block and the first piston, and the first piston is connected to the metal block through the elastic component.

[0029] Furthermore, the elastic component comprises:

[0030] An upper plate, the top end of which is connected to the first piston, and the upper plate is formed with a through hole extending vertically therethrough;

[0031] A lower plate, the lower plate is arranged below the upper plate and has a predetermined distance from the upper plate, the bottom end of the lower plate is connected to the metal block, the probe is connected to the lower plate, and the head of the probe is downward and retractable;

[0032] A screw, the rod of which can movably pass through the through hole of the upper plate and is threadedly connected to the lower plate;

[0033] A spring surrounds the rod of the screw and is arranged between the upper plate and the lower plate.

[0034] Furthermore, the detection device comprises:

[0035] A thermally conductive silicone grease sheet is connected to the bottom end of the metal block.

[0036] Due to the above technical solution, the utility model has the following beneficial effects:

[0037] According to the detection device of the cold plate with embedded heat pipes of the utility model, the cold plate is placed in the accommodating area of ​​the carrier plate, the base supports the carrier plate, the first piston of the first cylinder arranged on the gantry descends, the metal block (used to simulate the object to be cooled) follows the first piston to descend and abuts the installation area of ​​the substrate of the cold plate, and the probe follows the first piston to descend and abuts the non-installation area of ​​the substrate of the cold plate. The heating rod is inserted into the through hole of the metal block, and the power component provides a predetermined power to the heating rod, so that the heating rod generates heat and transfers this heat to the metal block, simulating the heat generated during the actual operation of the object to be cooled. The first thermocouple detects the first temperature of the metal block, and the second thermocouple detects the second temperature of the probe. By calculating the temperature difference between the first temperature and the second temperature, it can be determined whether the regional heat transfer capacity of the cold plate meets the requirements according to this temperature difference, that is, whether the heat pipes, substrates and connections between the cold plate meet the requirements. This detection device has high detection accuracy, good stability and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solution of the utility model, the following is a brief introduction to the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 It is a structural diagram of a detection device for a cold plate with a heat pipe buried therein and a cold plate according to an embodiment of the utility model;

[0040] Figure 2 It is a structural diagram of a second cylinder, an elastic component, a metal block, a heating rod and a probe according to an embodiment of the utility model;

[0041] Figure 3 It is a structural diagram of a fan and a surrounding plate according to an embodiment of the utility model.

[0042] Reference numerals:

[0043] 100, base; 210, guide rail; 220, slider; 300, gantry; 310, column; 320, beam; 410, first cylinder; 411, first body; 412, first piston; 420, elastic component; 421, screw; 422, upper plate; 423, spring; 424, lower plate; 430, metal block; 440, heating rod; 450, probe; 510, second cylinder; 520, buffer block; 610, fan; 620, enclosure; 630, baffle; 700, carrier plate; 710, metal plate; 720, bakelite plate; 800, cold plate; 810, substrate; 820, fin; 830, heat pipe. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0046] Next, the detection device of the cold plate with embedded heat pipes in the embodiment of the present invention is described. The cold plate 800 in the present invention includes a substrate 810, fins 820 connected to the substrate 810, and a heat pipe 830 embedded in the substrate 810. The surface of the substrate 810 is formed with an installation area for connecting the object to be cooled and a non-installation area. The two ends of the heat pipe 830 are respectively located in the installation area and the non-installation area. That is, the heat pipe 830 passes through the installation area and the non-installation area of ​​the substrate 810. Among them, the front, back, left and right directions are as follows: Figure 1 shown.

[0047] like Figures 1 to 3 As shown, the detection device for the cold plate with embedded heat pipes according to the embodiment of the utility model includes: a base 100, a carrier plate 700, a gantry 300, a first cylinder 410, a metal block 430, a probe 450, a heating rod 440, a power component, a first thermocouple and a second thermocouple.

[0048] First, the base 100 and the carrier 700 are described. The carrier 700 is disposed on the base 100, and a receiving area capable of receiving the cold plate 800 is formed on the carrier 700.

[0049] The base 100 can provide stable support for the carrier 700. The cold plate 800 can be placed in the receiving area of ​​the carrier 700 to perform thermal performance testing.

[0050] Next, the gantry 300 and the first cylinder 410 are described. The gantry 300 is mounted on the base 100, and the gantry 300 includes two columns 310 located on the left and right sides of the carrier 700 and a crossbeam 320 connecting the top ends of the two columns 310, and the crossbeam 320 is located above the carrier 700. The first cylinder 410 includes a first body 411 and a first piston 412 that can be raised and lowered, and the first body 411 is arranged on the crossbeam 320.

[0051] like Figure 1 As shown, the gantry 300 is mounted on the base 100 and can provide stable support. The first body 411 of the first cylinder 410 is arranged on the crossbeam 320 of the gantry 300, and the first piston 412 that can be raised and lowered can approach or move away from the cold plate 800 located in the accommodation area.

[0052] Next, the metal block 430, the probe 450, the heating rod 440 and the power assembly are described. The metal block 430 is connected to the first piston 412, and a through hole in a horizontal direction is formed on the metal block 430, so that the metal block 430 can abut against the installation area of ​​the substrate 810. The probe 450 is connected to the first piston 412 and is spaced apart from the metal block 430, so that the probe 450 can abut against the non-installation area of ​​the substrate 810. The heating rod 440 is inserted into the through hole of the metal block 430, and the power assembly can provide the heating rod 440 with a predetermined power.

[0053] like Figure 1 and Figure 2 As shown, the metal block 430 is used to simulate the object to be cooled, and the first piston 412 of the first cylinder 410 can drive the metal block 430 and the probe 450 to rise and fall. When the first piston 412 drops to a certain position, the metal block 430 can abut the installation area of ​​the substrate 810 of the cold plate 800, and the probe 450 can abut the non-installation area of ​​the substrate 810 of the cold plate 800. The heating rod 440 is inserted into the through hole of the metal block 430, and the power component provides the heating rod 440 with a predetermined power, so that the heating rod 440 generates heat, and the heat is transferred to the metal block 430, simulating the heat generated during the actual operation of the object to be cooled.

[0054] Finally, the first thermocouple and the second thermocouple are described. The first thermocouple is connected to the metal block 430 to detect a first temperature of the metal block 430 , and the second thermocouple is connected to the probe 450 to detect a second temperature of the probe 450 .

[0055] When the metal block 430 abuts against the mounting area of ​​the substrate 810 and the probe 450 abuts against the non-mounting area of ​​the substrate 810, the temperature of the metal block 430 is transferred to the mounting area of ​​the cold plate 800, and the high temperature is transferred to the non-mounting area of ​​the cold plate 800 through the combined action of the substrate 810 and the heat pipe 830. The first temperature of the metal block 430 can be detected by the first thermocouple, and the second temperature of the probe 450 (characterizing the temperature of the non-mounting area of ​​the cold plate 800) can be detected by the second thermocouple. The temperature difference between the first temperature and the second temperature is calculated, and the regional heat transfer capacity of the cold plate 800 can be reflected by this temperature difference. According to this temperature difference, it can be determined whether the regional heat transfer capacity of the cold plate 800 meets the requirements, that is, it can be determined whether the heat pipe 830, the substrate 810, the fin 820 of the cold pipe and the connection between them meet the requirements.

[0056] In the above detection device for the cold plate with embedded heat pipe, the cold plate 800 is placed in the accommodation area of ​​the carrier plate 700, the base 100 carries the carrier plate 700, the first piston 412 of the first cylinder 410 provided on the gantry 300 descends, the metal block 430 (used to simulate the object to be cooled) follows the first piston 412 to descend and abuts against the installation area of ​​the base plate 810 of the cold plate 800, and the probe 450 follows the first piston 412 to descend and abuts against the non-installation area of ​​the base plate 810 of the cold plate 800. The heating rod 440 is inserted into the through hole of the metal block 430, and the power component provides the heating rod 440 with a predetermined power, so that the heating rod 440 generates heat, and the heat is transferred to the metal block 430, simulating the heat generated during the actual operation of the object to be cooled. The first thermocouple detects the first temperature of the metal block 430, and the second thermocouple detects the second temperature of the probe 450. By calculating the temperature difference between the first temperature and the second temperature, it can be determined based on the temperature difference whether the regional heat transfer capacity of the cold plate 800 meets the requirements, that is, whether the heat pipe 830, the substrate 810 and the connection between the cold plate 800 meet the requirements. This detection device has high detection accuracy, good stability, and high efficiency.

[0057] In some embodiments of the present invention, the cold plate 800 further includes a fin 820, which is connected to a side of the base plate 810 away from the heat pipe 830. The detection device further includes a fan 610, which is located on the carrier plate 700 and at the rear side of the accommodation area.

[0058] That is to say, when the metal block 430 and the probe 450 are in contact with the cold plate 800, the fan 610 can perform forced convection cooling on the cold plate 800, thereby simulating the actual process in which the air-cooled cold plate 800 (including the cold plate 800 with fins 820) performs cooling on the object to be cooled, thereby more accurately detecting whether the regional heat dissipation capacity of the cold plate 800 meets the requirements.

[0059] Furthermore, the detection device further includes a panel 620. The panel 620 is mounted on the carrier plate 700 and is located between the accommodating area and the fan 610. The panel 620 and the carrier plate 700 can form an air outlet passage with front and rear end openings, and the front section of the panel 620 can abut against the rear end of the cold plate 800. There are multiple fans 610, and the multiple fans 610 are arranged at a distance from each other along the left and right direction at the rear side of the air outlet passage.

[0060] like Figure 1 and Figure 3 As shown, the fins 820 of the cold plate 800 are located below the base plate 810, and the enclosure 620 is disposed at the rear side of the cold plate 800. The enclosure 620 and the carrier plate 700 can form an air outlet passage with front and rear end openings, and the fan 610 blows / sucks air into the air outlet passage, thereby blowing or sucking air to the cold plate 800. Moreover, the enclosure 620 can abut against the rear end of the cold plate 800 to limit the cold plate 800.

[0061] Furthermore, the detection device further includes two baffles 630 , both of which are located on the carrier plate 700 and respectively located on both sides of the accommodating area. The two baffles 630 can be close to the left and right ends of the cold plate 800 , respectively.

[0062] like Figure 1 As shown, the two baffles 630 can limit the left and right directions of the cold plate 800. The cold plate 800 can be placed in the space surrounded by the two baffles 630 and the enclosure 620 to position the cold plate 800 so that the metal block 430 and the probe 450 can be aligned with the cold plate 800.

[0063] In some embodiments of the utility model, the detection device further includes two second cylinders 510 and two buffer blocks 520. The two second cylinders 510 are respectively arranged corresponding to the left and right edge areas of the cold plate 800, and the second cylinder 510 includes a second body and a second piston, and the second body is arranged on the crossbeam 320, and the second piston can be raised and lowered. The tops of the two buffer blocks 520 are respectively connected to the bottoms of the two second pistons, and the second pistons can abut the cold plate 800 through the buffer blocks 520. The buffer blocks 520 are elastic.

[0064] Since the installation area of ​​the substrate 810 is not necessarily symmetrical, simply relying on the metal block 430 to abut the cold plate 800 may easily cause uneven force on the cold plate 800 and tilt, thereby causing damage to the cold plate 800 (especially the cold plate 800 with fins 820) and inaccurate detection.

[0065] The second piston of the second cylinder 510 abuts against the left and right edge areas of the base plate 810 of the cold plate 800 through the buffer block 520, so that the cold plate 800 is subjected to uniform force, so that the metal block 430 can stably contact the base plate 810, avoid damage to the cold plate 800, and increase the accuracy of detection.

[0066] The buffer block 520 is elastic and can avoid abrasion of the substrate 810 of the cold plate 800, so that the substrate 810 is subjected to uniform force. The buffer block can be a silicone block or a rubber block.

[0067] Furthermore, there are two gantries 300 , which are spaced apart from each other in the front and rear directions, and two second cylinders 510 and two buffer blocks 520 are disposed on each gantry 300 .

[0068] like Figure 1 As shown, more metal blocks 430 can be arranged by two gantries 300 , so that thermal performance detection can be performed on a larger cold plate 800 and on more mounting areas of the base plate 810 .

[0069] The four second cylinders 510 and the four buffer blocks 520 respectively abut against the four corners of the cold plate 800 , so that the stability of the cold plate 800 can be further increased.

[0070] In some embodiments of the utility model, the detection device further includes a moving assembly, the carrier 700 is connected to the base 100 through the moving assembly, the carrier 700 includes a metal plate 710 and a bakelite board 720 located above the metal plate 710, the carrier 700 carries the cold plate 800 through the bakelite board 720, and the moving assembly includes two rails 210 and two groups of sliders 220. The two rails 210 are longitudinally laid on the base 100 and are spaced apart in the transverse direction, and are respectively adjacent to the two columns 310. The two groups of sliders 220 are respectively adapted to the two rails 210, and the two groups of sliders 220 are respectively connected to the bottom of the carrier 700.

[0071] like Figure 1 As shown, the carrier 700 is connected to the base 100 via two rails 210 and two sets of sliders 220 (moving components), which can make the carrier 700 move more smoothly and more aligned. The number of each set of sliders 220 can be one, two, three, etc.

[0072] The carrier 700 includes a bakelite board 720 and a metal plate 710 arranged up and down. The metal plate 710 has a large hardness and can provide stable support. The bakelite board 720 is relatively soft and has high durability. When it carries the fins of the cold plate 800, it can reduce the damage to the fins and increase the service life of the detection equipment. In addition, the bakelite board 720 has a low thermal conductivity, which can prevent the bakelite board 720 from participating in the heat dissipation of the cold plate 800, reduce the interference of the carrier 700 on the cold plate 800 detection process, and increase the accuracy of the detection.

[0073] In some embodiments of the present invention, the detection device further includes an elastic component 420 , which is disposed between the metal block 430 and the first piston 412 , and the first piston 412 is connected to the metal block 430 via the elastic component 420 .

[0074] The elastic component 420 can mitigate the impact of the metal block 430 on the cold plate 800 , thereby reducing the wear of the metal block 430 and the cold plate 800 .

[0075] Moreover, since the bottom surface of the metal block 430 and the surface of the substrate 810 are more or less deformed and tilted to a certain extent, if they are in rigid contact, there will be a gap between the bottom surface of the metal block 430 and the surface of the substrate 810. The elastic component 420 can make the metal block 430 fit the surface of the substrate 810 to avoid the generation of a gap, increase the contact area between the metal block 430 and the surface of the substrate 810, and make the thermal performance detection of the cold plate more accurate.

[0076] Furthermore, the elastic component 420 includes an upper plate 422, a lower plate 424, a screw 421 and a spring 423. The top of the upper plate 422 is connected to the first piston 412, and the upper plate 422 is formed with a through hole that runs through from top to bottom. The lower plate 424 is arranged below the upper plate 422 and has a predetermined distance from the upper plate 422, the bottom end of the lower plate 424 is connected to the metal block 430, and the probe 450 is connected to the lower plate 424, and the head of the probe 450 is downward and retractable. The rod of the screw 421 can movably pass through the through hole of the upper plate 422 and is threadedly connected to the lower plate 424. The spring 423 surrounds the rod of the screw 421 and is arranged between the upper plate 422 and the lower plate 424.

[0077] like Figure 1 and Figure 2 As shown, the first piston 412 can drive the buffer assembly and the metal block 430 to descend, and make the metal block 430 contact the installation area of ​​the base plate 810 of the cold plate 800. The first piston 412 continues to descend, and the spring 423 located between the upper plate 422 and the lower plate 424 and surrounding the rod of the screw 421 shrinks. The elastic force of the spring 423 forces the metal block 430 to abut against the base plate 810 of the cold plate 800, so that the metal block 430 and the cold plate 800 are tightly connected, reducing thermal resistance, so as to simulate the situation that the object to be cooled is connected or welded to the base plate 810 of the cold plate 800 by fasteners. In addition, the spring 423 can reduce the impact of the metal block 430 on the cold plate 800, reduce the wear of the metal block 430 and the cold plate 800, increase the life of the detection device, and avoid damage to the cold plate 800 during the detection process.

[0078] like Figure 2As shown, four springs 423 are arranged between the upper plate 422 and the lower plate 424, which can increase the elastic force and make the force of the metal block 430 pressing the cold plate 800 relatively uniform. It should be noted that the number of springs 423 is not limited here, and the number of springs 423 can also be three, six, eight, etc., which is set according to the size / shape of the metal block 430 and the contact between the metal block 430 and the cold plate 800.

[0079] In some embodiments of the present invention, the detection device includes a thermal grease sheet, which is connected to the bottom end of the metal block 430 .

[0080] In an actual process, before the object to be cooled is mounted on the cold plate 800 , thermal grease is applied on the mounting area of ​​the base plate 810 of the cold plate 800 , and then the object to be cooled is placed on the thermal grease.

[0081] If each cold plate 800 is coated with fluid thermal grease before testing, it will waste thermal grease, increase the cost, and make the testing process complicated and inefficient. The present application attaches a solid thermal grease sheet to the bottom of the metal block 430, and during the testing process, the metal block 430 and the cold plate 800 squeeze the thermal grease sheet to achieve testing, thereby replacing the application of fluid thermal grease, thereby increasing the testing efficiency and reducing the cost.

[0082] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection device for a cold plate with a heat pipe buried therein, the cold plate comprising a substrate and a heat pipe buried on the substrate, the surface of the substrate is formed with an installation area for connecting an object to be cooled and a non-installation area, the two ends of the heat pipe are respectively located in the installation area and the non-installation area, characterized in that: The detection device comprises: Base; A carrier plate, the carrier plate is arranged on the base, and a receiving area capable of receiving a cold plate is formed on the carrier plate; A gantry, the gantry is mounted on the base, the gantry comprises two columns located on the left and right sides of the carrier plate and a crossbeam connecting the top ends of the two columns, the crossbeam is located above the carrier plate; a first cylinder, the first cylinder comprising a first body and a first piston that can be raised and lowered, the first body being disposed on the crossbeam; a metal block, the metal block being connected to the first piston, the metal block being formed with a horizontal through hole, and the metal block being capable of abutting against the mounting area of ​​the substrate; a probe, the probe being connected to the first piston and spaced apart from the metal block, the probe being capable of abutting against a non-installation area of ​​the substrate; A heating rod and a power component, wherein the heating rod is inserted into the through hole of the metal block, and the power component can provide a predetermined power to the heating rod; A first thermocouple and a second thermocouple, wherein the first thermocouple is connected to the metal block to detect a first temperature of the metal block, and the second thermocouple is connected to the probe to detect a second temperature of the probe.

2. The detection device for a cold plate with a heat pipe embedded therein according to claim 1, characterized in that: The cold plate further includes a fin, the fin being connected to a side of the base plate away from the heat pipe, and the detection device further includes: A fan is located on the carrier plate and at the rear side of the accommodating area.

3. The detection device for a cold plate with a heat pipe embedded therein according to claim 2, characterized in that: The detection device also includes: The enclosing plate is mounted on the carrier plate and is located between the accommodating area and the fan. The enclosing plate and the carrier plate can form an air outlet passage with front and rear end openings, and the front section of the enclosing plate can abut against the rear end of the cold plate. There are a plurality of fans, and the plurality of fans are arranged at a rear side of the air outlet passage at intervals along the left-right direction.

4. The detection device for a cold plate with a heat pipe embedded therein according to claim 3, characterized in that: The detection device also includes: Two baffles, both of which are located on the carrier plate and respectively on the left and right sides of the accommodating area, and the two baffles can be close to the left and right ends of the cold plate respectively.

5. The detection device for a cold plate with a buried heat pipe according to claim 1, characterized in that: The detection device also includes: Two second cylinders, the two second cylinders are respectively arranged corresponding to the left and right edge areas of the cold plate, the second cylinders include a second body and a second piston, the second body is arranged on the crossbeam, and the second piston can be lifted and lowered; Two buffer blocks, the tops of the two buffer blocks are respectively connected to the bottoms of the two second pistons, and the second pistons can abut against the cold plate through the buffer blocks.

6. The detection device for a cold plate with a heat pipe embedded therein according to claim 5, characterized in that: There are two gantries, which are spaced apart from each other in the front and back directions, and each of the gantries is provided with two of the second cylinders and two of the buffer blocks.

7. The detection device for a cold plate with a heat pipe embedded therein according to claim 1, characterized in that: The detection device further includes a moving component, the carrier is connected to the base through the moving component, the carrier includes a metal plate and a bakelite board located above the metal plate, the carrier carries the cold plate through the bakelite board, and the moving component includes: Two rails, the two rails are longitudinally laid on the base and spaced apart in the transverse direction and are respectively adjacent to the two pillars; Two groups of sliders are respectively matched with the two tracks, and the two groups of sliders are respectively connected to the bottom of the carrier plate.

8. The detection device for a cold plate with a heat pipe embedded therein according to claim 1, characterized in that: The detection device further includes an elastic component, wherein the elastic component is arranged between the metal block and the first piston, and the first piston is connected to the metal block via the elastic component.

9. The detection device for a cold plate with a heat pipe embedded therein according to claim 8, characterized in that: The elastic component comprises: An upper plate, the top end of which is connected to the first piston, and the upper plate is formed with a through hole extending vertically therethrough; A lower plate, the lower plate is arranged below the upper plate and has a predetermined distance from the upper plate, the bottom end of the lower plate is connected to the metal block, the probe is connected to the lower plate, and the head of the probe is downward and retractable; A screw, the rod of which can movably pass through the through hole of the upper plate and is threadedly connected to the lower plate; A spring surrounds the rod of the screw and is arranged between the upper plate and the lower plate.

10. The detection device for a cold plate with a heat pipe embedded therein according to claim 1, characterized in that: The detection device comprises: A thermally conductive silicone grease sheet is connected to the bottom end of the metal block.

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