CN210775295U - Heat conduction performance testing device - Google Patents

Heat conduction performance testing device Download PDF

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Publication number
CN210775295U
CN210775295U CN201921265493.6U CN201921265493U CN210775295U CN 210775295 U CN210775295 U CN 210775295U CN 201921265493 U CN201921265493 U CN 201921265493U CN 210775295 U CN210775295 U CN 210775295U
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CN
China
Prior art keywords
pressure sensor
support frame
heating device
heat conduction
slide rail
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Expired - Fee Related
Application number
CN201921265493.6U
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Chinese (zh)
Inventor
潘磊明
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Suzhou Xinche Electronic Co ltd
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Suzhou Xinche Electronic Co ltd
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Priority to CN201921265493.6U priority Critical patent/CN210775295U/en
Application granted granted Critical
Publication of CN210775295U publication Critical patent/CN210775295U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a heat conduction capability test device, including base, support frame, cooling device, heating device, slide rail, pressure sensor, altitude mixture control gear subassembly, hand wheel, calibrator, its characterized in that: the base is provided with a support frame and a cooling device, the support frame is provided with a slide rail, the slide rail is provided with a pressure sensor and a height adjusting gear assembly, the pressure sensor is provided with a thickness gauge and a heating device, the heating device is fixed at the bottom end of the pressure sensor through a connecting rod, and the other end of the thickness gauge is fixed on the support frame. The utility model discloses a set up calibrator and pressure sensor, adjustable sample thickness and the pressure of arranging in between heating device and the cooling device, cooperation thermocouple temperature probe monitors heating device and cooling device's temperature, can obtain the heat conductivity parameter of sample. The utility model has the advantages of simple and reasonable structure, the whole is with low costs, and the simple operation has promoted efficiency of software testing, reliability and reproducibility by a wide margin.

Description

Heat conduction performance testing device
Technical Field
The utility model belongs to the technical field of test equipment, concretely relates to heat conduction testing arrangement.
Background
With the miniaturization and integration of electronic products, power consumption and heat generation thereof are also increasing. In order to ensure high reliability and optimum performance of electronic products, it is necessary to promptly discharge heat generated from heat-generating electronic components using a heat conductive material. The heat conducting material has good interface filling and deformation characteristics, and is widely applied to the fields of consumer electronics, communication equipment, power modules and the like. And thus the demand for heat conductive materials is increasing. At present, the heat conduction performance test of the heat conduction materials mainly utilizes the principle of a steady-state heat flow method, namely, a heating block and a cooling block are arranged at two ends of the heat conduction materials, and the heat conduction performance parameters of the heat conduction materials are obtained through testing and calculating the parameters such as temperature, heat, size and the like. However, the existing test equipment has the disadvantages of complex structure, complex operation, long test working hours and low efficiency. Accordingly, the prior art is deficient and needs improvement.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a heat conduction performance testing device which has simple structure, low cost, simple operation and high testing efficiency.
In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a heat conduction capability test device, includes base, support frame, cooling device, heating device, slide rail, pressure sensor, altitude mixture control gear subassembly, hand wheel, calibrator, its characterized in that: the base is provided with a support frame and a cooling device, the support frame is provided with a slide rail, the slide rail is provided with a pressure sensor and a height adjusting gear assembly, the pressure sensor is provided with a thickness gauge and a heating device, the heating device is fixed at the bottom end of the pressure sensor through a connecting rod, and the other end of the thickness gauge is fixed on the support frame.
Furthermore, the heating device comprises an upper brass block, a heat insulation layer, an electric heating sheet and a lower brass block, wherein a first thermocouple temperature probe is arranged in the lower brass block;
further, the insulating layer material is one of asbestos, rock wool, aerogel felt, foaming silica gel, foaming polyurethane, the electrical heating piece is one of silica gel heating piece, polyimide heating piece, links to each other with adjustable DC power supply, brass block central point puts down on first thermocouple temperature probe top to link to each other with the temperature tester.
Furthermore, the cooling device comprises a brass cavity with an inner hollow part, a circulating cooling water inlet, a circulating cooling water outlet and a second thermocouple temperature probe, wherein the circulating cooling water inlet and the circulating cooling water outlet are connected with the constant-temperature circulating water tank.
Further, the thickness gauge is one of a micrometer, a vernier caliper and an electronic ruler.
Furthermore, the pressure applied by the pressure sensor ranges from 0kgf to 200 kgf.
Due to the application of the technical scheme, compared with the prior art, the utility model have the following advantage: by arranging the thickness gauge and the pressure sensor, the thickness and the pressure of the sample arranged between the heating device and the cooling device can be adjusted, and the temperature of the heating device and the temperature of the cooling device are monitored by matching with the thermocouple temperature probe, so that the heat conduction performance parameters of the sample can be obtained. Meanwhile, the heating device and the cooling device are specially designed, the heating device is internally provided with a heat insulating material, so that the purpose of unidirectional transmission of heat is realized, the cooling device is supplied with water by the constant-temperature circulating water tank, the temperature can be kept constant, and the reliability and the repeatability of the test are ensured. The utility model has the advantages of simple and reasonable structure, overall cost is low, and the simple operation has promoted efficiency of software testing by a wide margin.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the device comprises a base, 2, a cooling device, 3, a supporting frame, 4, a sliding rail, 5, a pressure sensor, 6, a connecting rod, 7, a heating device, 8, a height adjusting gear assembly, 9, a hand wheel, 10, a thickness gauge, 11, a connecting rod, 12 and a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a heat conduction performance testing device includes a base 1, a supporting frame 3, a cooling device 2, a heating device 7, a slide rail 4, a pressure sensor 5, a height adjusting gear assembly 8, a hand wheel 9, and a thickness gauge 10. The base 1 is provided with a support frame 3 and a cooling device 2, the support frame 3 is provided with a slide rail 4, the slide rail 4 is provided with a pressure sensor 5 and a height adjusting gear assembly 8, the pressure sensor 5 is provided with a thickness gauge 10 and a heating device 7, the heating device 7 is fixed at the bottom end of the pressure sensor 5 through a connecting rod 6, and the other end of the thickness gauge 10 is fixed on the support frame 3.
Referring to fig. 1, the heating device 7 comprises an upper brass block 71, a heat insulation layer 72, an electric heating sheet 73 and a lower brass block 74 in which a first thermocouple temperature probe 75 is arranged; the insulating layer 72 material is one of asbestos, rock wool, aerogel felt, foaming silica gel, foaming polyurethane, electric heating plate 73 is one of silica gel heating plate, polyimide heating plate, links to each other with adjustable DC power supply, the brass block 74 central point puts down on first thermocouple temperature probe 75 top to link to each other with the temperature tester.
Referring to fig. 1, the cooling device 2 comprises a brass cavity 21 with an inner hollow part, a circulating cooling water inlet 23, a circulating cooling water outlet 22 and a second thermocouple temperature probe 24, wherein the circulating cooling water inlet and the circulating cooling water outlet are connected with a constant temperature circulating water tank.
The use method of the test device comprises the following steps:
before the test, the temperature of the cooling device 7 is kept at the low temperature Tc by setting the temperature of the constant-temperature circulating water tank to be 10-25 ℃ in general. And then resetting the thickness, specifically, shaking the hand wheel 9 to make the lower surface of the heating device 7 contact with the upper surface of the cooling device 2, and when the numerical value of the pressure sensor 5 reaches 0.01kgf, enabling the reading of the thickness gauge 10 to return to zero. And then the hand wheel 9 is shaken reversely to stop when the distance between the lower surface of the heating device 7 and the upper surface of the cooling device 2 reaches 20 mm.
The sample with the area A equal to the lower surface of the heating device 7 is placed on the upper surface of the cooling device 2 right below the heating device 7, the hand wheel 9 is shaken to contact the sample, and when the value of the force sensor 5 reaches 0.01kgf, the reading of the thickness gauge 10 can be read, and the value is the initial thickness value D0 of the sample. The output power Q of the adjustable DC power supply is set to enable the heating device 7 to generate heat, at the moment, the heat can be transmitted to the cooling device 2 through the sample, and then the heat is rapidly discharged by the circulating cooling water. The temperature change process can be monitored in real time after the temperature tester is opened, and the temperature value Th is recorded after the temperature of the heating device 7 is constant. And continuously shaking the hand wheel 9 to apply pressure to compress and deform the sample, so that a series of thickness and heating device temperature values can be obtained. And calculating heat conduction performance parameters such as thermal resistance and the like of the material at different thicknesses according to a formula R ═ Th-Tc A/Q.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a heat conduction capability test device, its characterized in that, includes base (1), support frame (3), cooling device (2), heating device (7), slide rail (4), pressure sensor (5), altitude mixture control gear subassembly (8), hand wheel (9), calibrator (10), support frame (3) and cooling device (2) have been set up on base (1), be provided with slide rail (4) on support frame (3), be provided with pressure sensor (5) and altitude mixture control gear subassembly (8) on slide rail (4), be provided with calibrator (10) and heating device (7) on pressure sensor (5), heating device (7) are fixed in pressure sensor (5) bottom through connecting rod (6), calibrator (10) other end is fixed on support frame (3).
2. The device for testing the thermal conductivity according to claim 1, wherein the heating device (7) comprises an upper brass block (71), a thermal insulating layer (72), an electrical heating plate (73) and a lower brass block (74) in which a first thermocouple temperature probe (75) is arranged.
3. The heat conduction testing device according to claim 2, wherein the heat insulation layer (72) is made of one of asbestos, rock wool, aerogel felt, foamed silica gel and foamed polyurethane, the electric heating plate (73) is one of a silica gel heating plate and a polyimide heating plate and is connected with an adjustable direct current power supply, and the top end of the first thermocouple temperature probe (75) is located at the center of the lower brass block (74) and is connected with the temperature tester.
4. The heat conduction testing device according to claim 1, wherein the cooling device (2) comprises a brass cavity (21) with an inner cavity, a circulating cooling water inlet (23), a circulating cooling water outlet (22), and a second thermocouple temperature probe (24), and the circulating cooling water inlet and outlet are connected with the low-temperature constant-temperature circulating water tank.
5. The heat conduction testing apparatus according to claim 1, wherein the thickness gauge (10) is one of a micrometer, a vernier caliper, and an electronic ruler.
6. The device for testing heat conductivity according to claim 1, wherein the pressure sensor (5) applies a pressure in the range of 0 to 200 kgf.
CN201921265493.6U 2019-08-06 2019-08-06 Heat conduction performance testing device Expired - Fee Related CN210775295U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921265493.6U CN210775295U (en) 2019-08-06 2019-08-06 Heat conduction performance testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921265493.6U CN210775295U (en) 2019-08-06 2019-08-06 Heat conduction performance testing device

Publications (1)

Publication Number Publication Date
CN210775295U true CN210775295U (en) 2020-06-16

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Application Number Title Priority Date Filing Date
CN201921265493.6U Expired - Fee Related CN210775295U (en) 2019-08-06 2019-08-06 Heat conduction performance testing device

Country Status (1)

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CN (1) CN210775295U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113758966A (en) * 2021-09-08 2021-12-07 英业达科技有限公司 Adjustable simulated heat source test platform

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113758966A (en) * 2021-09-08 2021-12-07 英业达科技有限公司 Adjustable simulated heat source test platform

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20200616

Termination date: 20210806