Device for detecting heat-conducting property of heat-conducting silicone grease

Abstract

The utility model relates to the technical field of silicone grease testing, and particularly discloses a heat-conducting silicone grease heat-conducting property detection device which comprises a test plate for testing, a heat-conducting assembly arranged on the test plate and a carrier arranged between the test plate and the heat-conducting assembly, the test plate comprises a plate body, a cavity is formed in the inner side of the plate body, and a heating area is arranged at the cavity and used for detecting the heat-conducting property of the silicone grease; according to the utility model, the blade coating assembly is matched with the carrier, so that the variable of the heat-conducting material can be controlled, the coating thickness can be controlled, the heat-conducting property of the heat-conducting silicone grease can be detected, and the heat-conducting assembly is matched with the blade coating assembly, so that the temperature of multiple points can be detected and more data can be collected by relying on the carrier with uniform heat conduction; and moreover, a variable control mode is adopted, so that an interval curve of the heat-conducting property of the silicone grease can be drawn, and a data basis is provided for later improvement of components of the silicone grease.

Description

Technical Field

[0001] The utility model relates to the technical field of silicone grease testing, in particular to a device for detecting the thermal conductivity of thermally conductive silicone grease. Background Art

[0002] The thermal conductivity of silicone grease is affected by many factors, including the following main factors:

[0003] Grease composition: The composition of silicone grease has a great influence on its thermal conductivity. Generally speaking, the main components of silicone grease are silicone oil or silicone, and silicone has better thermal conductivity. In addition, the fillers or additives added to silicone grease may also affect its thermal conductivity.

[0004] Filler type and content: Fillers are usually added to silicone grease to improve its physical properties, such as consistency, viscosity, etc. Different types of fillers will also have different effects on thermal conductivity. For example, thermally conductive fillers such as metal powder, alumina, etc. can improve the thermal conductivity of silicone grease, while other fillers may reduce its thermal conductivity.

[0005] Particle size and distribution: The particle size and distribution of fillers also affect the thermal conductivity of silicone grease. Generally speaking, smaller filler particle size and uniform distribution can improve the thermal conductivity of silicone grease because they can fill the microscopic pores in the silicone grease and reduce thermal resistance.

[0006] Use conditions of silicone grease: The thermal conductivity of silicone grease will vary under different use conditions. For example, factors such as temperature, pressure, and stress may affect the thermal conductivity of silicone grease. Under extreme conditions, the thermal conductivity of silicone grease may change.

[0007] Processing technology: The processing technology of silicone grease may also affect its thermal conductivity. For example, the stirring speed, temperature, time and other parameters in the mixing process may affect the thermal conductivity of the final product.

[0008] When the above variables affecting the thermal conductivity of silicone grease are fixed, the degree of silicone grease application will also affect the thermal conductivity. However, the existing testing methods are not precise enough in controlling the variables, especially the thickness of the thermal grease application. Based on this, more precise control variables are required during testing. Utility Model Content

[0009] In view of the deficiencies in the prior art, the utility model provides a device for detecting the thermal conductivity of thermally conductive silicone grease, which solves the problem in the prior art that when the variables of the thermal conductivity factors affecting the silicone grease are fixed, the thickness variable of the applied silicone grease is not precisely controlled, resulting in inaccurate testing.

[0010] The thermal conductivity performance detection device of the thermal conductive silicone grease of the utility model comprises a test board for testing, a thermal conductive component arranged on the test board, and a carrier installed between the test board and the thermal conductive component;

[0011] The test board comprises a board body, a cavity is provided inside the board body, and a temperature rising area is provided in the cavity for testing the thermal conductivity of the silicone grease;

[0012] The top of the plate body is provided with two adjustment grooves arranged in mirror symmetry, the upper part of the adjustment groove is arranged in an opening shape, and a slide rail is installed to adapt to the scraping and coating component;

[0013] A test area is arranged at the top of the plate body between the two slide rails, and the test area is adapted to the carrier. The top of the carrier contacts the metal bottom plate at the bottom of the heat-conducting component through silicone grease.

[0014] As a further improvement of the present invention, the top of the plate body is located outside the test area and is provided with N positioning holes in a ring shape for fixing the heat conducting component.

[0015] As a further improvement of the utility model, the scraping assembly includes a threaded rod, which is adapted to the adjustment groove. A slider is sleeved on the rod body of the threaded rod, a support rod is arranged between two of the sliders, and a scraper is arranged at the bottom of the support rod for applying silicone grease.

[0016] As a further improvement of the utility model, both sides of the sliding block are adapted to the sliding rails, and the scraper is arranged at the bottom of the support rod at a preset inclination angle.

[0017] As a further improvement of the utility model, the heat conductive component includes a heat sink fin, the bottom of the heat sink fin is adapted to the carrier area, a hollow area is provided downward in the middle of the heat sink fin, and one or more test points are provided in the hollow area for detecting the thermal conductivity of the silicone grease.

[0018] As a further improvement of the present invention, a plurality of support bars are provided in a ring shape at the bottom of the heat dissipation fins, and the support bars are fitted with the positioning holes via fasteners.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] The utility model can control the variables of the thermally conductive material and the coating thickness through the provided scraping component in conjunction with the provided carrier, and can realize the detection of the thermal conductivity of the thermally conductive silicone grease. The provided thermally conductive component can rely on the uniformly thermally conductive carrier to perform temperature detection at multiple points, collect more data, and improve the detection accuracy. In addition, by adopting the method of controlling variables, the interval curve of the thermal conductivity of the silicone grease can be drawn, providing a data basis for the subsequent improvement of the silicone grease components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the test board and the heat-conducting component combination of the utility model;

[0023] Figure 2 This is a schematic diagram of the combined structure of the test board, heat conduction component and carrier of the utility model;

[0024] Figure 3 This is a schematic diagram of the top view of the test board of the utility model;

[0025] Figure 4 For this utility model Figure 3 Schematic diagram of the AA section structure;

[0026] Figure 5 This is a schematic diagram of the front view structure of the heat conduction component of the utility model;

[0027] Figure 6 This is a schematic diagram of the top view of the heat conduction component of the utility model;

[0028] Figure 7 It is a schematic diagram of the combined structure of the test plate and the scraping assembly of the utility model.

[0029] In the figure: 1. Test board; 2. Thermal conductive component; 3. Carrier; 4. Scrape coating component;

[0030] 11. Plate body; 12. Positioning hole; 13. Adjustment slot; 14. Slide rail; 15. Test area; 16. Heating area;

[0031] 21. Test point; 22. Heat sink fins; 23. Support bar;

[0032] 41. Slider; 42. Scraper; 43. Support rod; 44. Threaded rod. DETAILED DESCRIPTION

[0033] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0034] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 as well as Figure 7 The thermal conductivity of silicone grease is affected by many factors, mainly process and material aspects, and the degree of silicone grease application will also affect the thermal conductivity. The existing testing method is not accurate enough in controlling the variables, especially the thickness of the thermally conductive grease. Based on this, the present application provides a thermal conductivity testing device for thermally conductive silicone grease, including a test board 1 for testing, a thermally conductive component 2 set on the test board 1, and a carrier 3 installed between the test board 1 and the thermally conductive component 2;

[0036] The test board 1 includes a board body 11, a cavity is formed inside the board body 11, and a temperature rising area 16 is provided in the cavity for testing the thermal conductivity of the silicone grease;

[0037] The top of the plate body 11 is provided with two adjustment slots 13 arranged in mirror symmetry, the upper part of the adjustment slots 13 is arranged in an open shape, and a slide rail 14 is installed thereon for adapting the scraping assembly 4;

[0038] A test area 15 is provided at the top of the plate body 11 between the two slide rails 14 , and the test area 15 is adapted to the carrier 3 . The top of the carrier 3 is in contact with the metal bottom plate at the bottom of the heat-conducting component 2 through silicone grease.

[0039] The silicone grease sample is placed on the carrier 3 adapted to the cavity of the test board 1 for testing. The temperature rise area 16 is responsible for providing the required temperature conditions, such as using a heat spreader (carrier 3) and a resistor to heat up (generating heat by powering on) to simulate the temperature conditions in the actual working environment. In this way, the thermal conductivity of the silicone grease sample can be accurately tested under controlled temperature conditions.

[0040] The arrangement of the adjustment slot 13 and the slide rail 14 in the device allows the scraping assembly 4 to be easily installed and adjusted to accommodate different thicknesses of coating and samples of different sizes. This flexibility enables the device to be applicable to a variety of different experimental requirements, improving its practicality and versatility.

[0041] By setting the temperature rising area 16 in the test board 1 and contacting the metal bottom plate of the heat conducting component 2 through silicone grease, it can be ensured that the test sample is tested under appropriate temperature and pressure conditions, thereby improving the accuracy and credibility of the test.

[0042] The arrangement of the adjustment slot 13 and the slide rail 14 in the device allows the scraping assembly 4 to be easily installed and adjusted to accommodate coatings of different thicknesses and samples of different sizes. This flexibility enables the device to be applicable to a variety of different experimental requirements, improves its practicality and versatility, and ensures stable contact between the test sample and the carrier 3 and the thermal conductive component 2. This helps to maintain the stability and repeatability of the test conditions and ensures the comparability and accuracy of the experimental results.

[0043] See also Figure 1 , Figure 3 , Figure 4 , Figure 7 The top of the plate body 11 is located outside the test area 15 and is provided with N positioning holes 12 in a ring shape for fixing the heat conducting component 2 .

[0044] A plurality of support bars 23 are provided in a ring shape at the bottom of the heat dissipation fin 22 , and the support bars 23 are fitted with the positioning holes 12 via fasteners.

[0045] The positioning holes 12 ensure the stability and accuracy of the thermal conductive component 2 during the test. By selecting the positioning holes 12 with the appropriate number and position, good contact between the thermal conductive component 2 and the silicone grease sample can be ensured, and test errors caused by movement or looseness can be avoided.

[0046] The function of the support bar 23 is to provide additional support and stability to ensure the smooth operation of the thermal conductive component 2 during the test. The support bar 23 is adapted to the positioning hole 12 through a fastener, thereby fixing the thermal conductive component 2 in a suitable position and ensuring the accuracy and repeatability of the test.

[0047] The positioning holes 12 ensure that the thermal conductive component 2 is stably fixed on the top of the test board 1, and the design of the support bar 23 provides additional support, so that the thermal conductive component 2 remains stable during the test. This design ensures that the position of the thermal conductive component 2 is stable during the test, thereby improving the accuracy and reliability of the test.

[0048] Through the design of the positioning holes 12 and the support bars 23, the heat conducting component 2 can be quickly and accurately fixed on the test board 1, and can be adjusted as needed. This design makes the operation of the device more convenient and efficient, saves time and improves experimental efficiency.

[0049] Through the design of the positioning holes 12 and the support bars 23, the device ensures the position stability and repeatability of the thermal conductive component 2. This helps to maintain the stability of the test conditions and ensure the comparability and accuracy of the experimental results.

[0050] See also Figure 1 , Figure 7 The scraping assembly 4 includes a threaded rod 44, which is adapted to the adjustment groove 13. A slider 41 is sleeved on the rod body of the threaded rod 44, a support rod 43 is arranged between the two sliders 41, and a scraper 42 is arranged at the bottom of the support rod 43 for applying silicone grease.

[0051] Both sides of the slide block 41 are adapted to the slide rail 14 , and the scraper 42 is arranged at the bottom of the support rod 43 at a preset inclination angle.

[0052] The scraper assembly 4 is designed to achieve accurate application of the silicone grease sample. The two sides of the slider 41 are adapted to the slide rails 14 on the test plate 1, ensuring stable operation and accurate position adjustment of the scraper assembly 4. The scraper 42 is set at the bottom of the support rod 43 at a preset tilt angle to ensure that the applied silicone grease sample has a consistent thickness and uniformity.

[0053] The design of the scraper assembly 4 enables uniform coating on the silicone grease sample. The scraper 42 at the bottom of the support rod 43 and the preset tilt angle ensure that a uniform coating is formed on the surface of the silicone grease sample, thereby improving the accuracy and repeatability of the test.

[0054] The scraping assembly 4 is adapted to the slide rail 14 of the test plate 1, and the design of the slider 41 and the support rod 43 ensures the stability and precise position adjustment of the scraping assembly 4 during the test, making the scraping operation more reliable, thereby improving the credibility of the experiment.

[0055] The design of the scraping assembly 4 makes the coating operation on the silicone grease sample more efficient. Through the cooperation of the threaded rod 44 and the adjustment groove 13, as well as the structure of the slider 41 and the support rod 43, the coating task can be completed quickly and accurately, saving time and improving experimental efficiency.

[0056] The heat conducting component 2 includes a heat sink fin 22, the bottom of the heat sink fin 22 is adapted to the area of ​​the carrier 3, a hollow area is arranged downward from the middle of the heat sink fin 22, and one or more test points 21 are arranged in the hollow area for detecting the thermal conductivity of the silicone grease.

[0057] The heat sink fins 22 are designed to provide an effective test environment to evaluate the thermal conductivity of the silicone grease sample. The adaptation of the bottom and the carrier 3 area ensures that heat can be effectively transferred to the silicone grease sample. Test points 21 are set in the hollow area in the middle, and these test points 21 can accurately measure the thermal conductivity of the silicone grease sample under different temperature conditions.

[0058] The thermal conductive component 2 ensures good thermal contact with the silicone grease sample and effectively conducts heat by adapting the bottom area to the carrier 3. This design ensures the accuracy and reliability of the test, thus providing a reliable basis for the accurate evaluation of thermal conductivity.

[0059] One or more test points 21 are arranged in the hollow area in the middle of the heat sink fin 22 for real-time detection of the thermal conductivity of the silicone grease sample. This design makes it possible to accurately monitor and evaluate the thermal conductivity under different temperature conditions, providing important data support for researchers.

[0060] The design of the thermal conductive component 2 is intended to ensure the reliability and stability of the test. Through appropriate structure and position setting, good contact between the test point 21 and the silicone grease sample is ensured, thereby improving the credibility and accuracy of the test results.

[0061] The detection tool used at the test point 21 is usually a temperature sensor or a thermocouple. These tools can measure the temperature change at the test point, thereby evaluating the thermal conductivity of the silicone grease sample under different temperature conditions. By real-time monitoring of the temperature change at the test point, thermal conductivity data can be obtained for analyzing and evaluating the thermal conductivity of the silicone grease sample.

[0062] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A device for testing the thermal conductivity of thermally conductive silicone grease, comprising a test board (1) for testing, a thermally conductive component (2) arranged on the test board (1), and a carrier (3) installed between the test board (1) and the thermally conductive component (2); Features: The test board (1) comprises a board body (11), a cavity is provided on the inner side of the board body (11), and a temperature rising area (16) is provided in the cavity for testing the thermal conductivity of the silicone grease; The top of the plate body (11) is provided with two adjustment grooves (13) arranged in mirror symmetry, the upper part of the adjustment groove (13) is arranged in an open shape and is provided with a slide rail (14) for adapting to the scraping assembly (4); A test area (15) is provided at the top of the plate body (11) between the two slide rails (14), and the test area (15) is adapted to the carrier (3). The top of the carrier (3) is in contact with the metal base plate at the bottom of the heat-conducting component (2) through silicone grease.

2. A thermal conductivity testing device for thermal conductive silicone grease according to claim 1, characterized in that: The top of the plate body (11) is located outside the test area (15) and is provided with N positioning holes (12) in a ring shape for fixing the heat conducting component (2).

3. A thermal conductivity testing device for thermal conductive silicone grease according to claim 1, characterized in that: The scraping assembly (4) comprises a threaded rod (44), the threaded rod (44) is adapted to the adjustment groove (13), a slider (41) is sleeved on the rod body of the threaded rod (44), a support rod (43) is arranged between the two sliders (41), and a scraper (42) is arranged at the bottom of the support rod (43) for applying silicone grease.

4. A thermal conductivity testing device for thermal conductive silicone grease according to claim 3, characterized in that: Both sides of the sliding block (41) are adapted to the sliding rails (14), and the scraper (42) is arranged at a preset inclination angle at the bottom of the supporting rod (43).

5. A thermal conductivity testing device for thermal conductive silicone grease according to claim 1, characterized in that: The heat-conducting component (2) comprises a heat-dissipating fin (22), the bottom of the heat-dissipating fin (22) being adapted to the area of ​​the carrier (3), a hollow area being arranged downward in the middle of the heat-dissipating fin (22), and one or more test points (21) being arranged in the hollow area for detecting the thermal conductivity of the silicone grease.

6. A thermal conductivity testing device for thermal conductive silicone grease according to claim 5, characterized in that: A plurality of support bars (23) are provided in an annular shape at the bottom of the heat dissipation fin (22), and the support bars (23) are adapted to the positioning holes (12) via fasteners.

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