Heat conduction material compression test method, device and equipment and storage medium

Abstract

The invention discloses a heat conduction material compression test method, device and equipment and a storage medium, the compression test method comprises the following steps: reading a set compression amount, calculating to obtain a driving stroke of a compression device, and driving a movable part of the compression device to move and approach to a test position; a data collector is controlled to read and record a pressure value sensed by a pressure sensor of the movable part in real time; judging the size between the recorded pressure value and a pressure value recorded last time, and if the recorded pressure value is smaller than the pressure value recorded last time, taking the pressure value recorded last time as a pressure value required by compression; and continuing to judge the size between the recorded pressure value and the last recorded pressure value, and if the recorded pressure value is equal to the last recorded pressure value, taking the last recorded pressure value as the pressure value required for stabilization. The compression test method for the heat-conducting material can accurately test the stable pressure required for compressing the heat-conducting material to a certain amount.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal conductive material compression testing, and in particular to a thermal conductive material compression testing method, device, equipment and storage medium. Background Art

[0002] Compression testing of elastic thermal conductive materials requires testing the relationship between the compression rate and pressure of the thermal conductive materials to draw a compression rate and pressure curve. However, the existing compression testing methods are mainly carried out using thermal conductivity testers and universal testing machines. The two cannot meet the needs of compression testing of elastic thermal conductive materials. When using a thermal conductivity tester for compression testing, the test data is obtained by continuously applying pressure to the thermal conductive material and recording the percentage of thickness change of the tested thermal conductive material. The test data obtained is not accurate and can only be obtained as follows: Figure 1 The curve graph shown in the figure, while the compression test using a universal testing machine cannot provide the pressure (pressure per square area) required to compress the thermal conductive material to a specific compression amount, resulting in the inability to perform the compression test. Therefore, the existing compression test equipment cannot test and obtain the required accurate compression test data, and thus cannot provide the OEM with the design data of the pressure required when the thermal conductive material sheet is compressed to a certain ratio and the pressure borne by the screws fixing the heat dissipation module. Summary of the invention

[0003] The purpose of the present invention is to provide a thermal conductive material compression test method, device, equipment and storage medium, which can accurately test and obtain the stable pressure required to compress the thermal conductive material to a certain amount, so as to provide pressure data for the use of thermal conductive material sheets, and further provide accurate data support for the design scheme of the main engine manufacturer.

[0004] In order to achieve the above-mentioned object, the present invention discloses a thermal conductive material compression test method, which comprises: being executed by a compression test device, the compression test device comprising a compression device and a data collector, the compression device comprising a driver and a movable part, the movable part being provided with a pressure sensor, the movable part being provided at a driving end of the driver corresponding to a test position where a thermal conductive material is placed, the test method comprising:

[0005] S101, reading a set compression amount, and calculating a driving stroke according to the set compression amount;

[0006] S102, driving the movable member to move closer to the test position according to the calculated driving stroke;

[0007] S103, controlling the data collector to read and record the pressure value sensed by the pressure sensor in real time;

[0008] S104, determining the difference between the recorded pressure value and the last recorded pressure value, if the recorded pressure value is smaller than the last recorded pressure value, taking the last recorded pressure value as the required compression pressure value;

[0009] S105, continue to determine the difference between the recorded pressure value and the last recorded pressure value. If the recorded pressure value is equal to the last recorded pressure value, use the last recorded pressure value as the pressure value required for stabilization.

[0010] Furthermore, before step S101, the method further includes:

[0011] S11, performing zero point calibration on the pressure sensor.

[0012] Furthermore, before step S101, the method further includes:

[0013] S12, controlling the driver to drive the movable part to reset.

[0014] Further, step S12 includes:

[0015] S121, controlling the driver to drive the movable member to move downward to a zero position;

[0016] S122, controlling the driver to drive the movable member to move upward to a rising position;

[0017] Furthermore, the set compression amount includes product thickness and at least one compression percentage, and step S101 includes:

[0018] S1011, reading the product thickness and the compression percentage;

[0019] S1012, calculating the driving stroke required for compression to a corresponding compression percentage according to the read product thickness.

[0020] Furthermore, after step S105, the method further includes:

[0021] S106. Generate a curve graph of the relationship between pressure and compression using the multiple pressure values ​​recorded in step S103.

[0022] Furthermore, after step S106, the method further includes:

[0023] S107, reading drawing setting values, wherein the drawing setting values ​​include an X length value and a Y upper limit value;

[0024] S108: Regenerate the pressure-compression relationship curve graph according to the read drawing setting value.

[0025] In order to achieve the above object, the present invention discloses a thermal conductive material compression test device, which comprises:

[0026] A reading and calculating module, used for reading a set compression amount and calculating a driving stroke according to the set compression amount;

[0027] A driving module, used for driving the movable part to move closer to the testing position according to the calculated driving stroke;

[0028] A reading and recording module, used to control the data collector to read and record the pressure value sensed by the pressure sensor in real time;

[0029] The first judgment module is used to judge the difference between the recorded pressure value and the last recorded pressure value. If the recorded pressure value is smaller than the last recorded pressure value, the last recorded pressure value is used as the required compression pressure value;

[0030] The second judgment module is used to continue to judge the size between the recorded pressure value and the last recorded pressure value. If the recorded pressure value is equal to the last recorded pressure value, the last recorded pressure value is used as the pressure value required for stability.

[0031] In order to achieve the above object, the present invention discloses an electronic device, which includes:

[0032] one or more processors;

[0033] One or more memories are used to store one or more programs. When one or more of the programs are executed by the processor, the processor implements the thermal conductive material compression test method as described above.

[0034] In order to achieve the above-mentioned object, the present invention discloses a computer-readable storage medium having a program stored thereon, and when the program is executed by a processor, the aforementioned thermal conductive material compression test method is implemented.

[0035] In the present application, the pressure value required for compressing the thermally conductive material is detected by controlling the compression device to compress the thermally conductive material in conjunction with the pressure sensor. First, the driving stroke is calculated according to the set compression amount read, and the movable part is driven to move closer to the thermally conductive material at the test position according to the calculated driving stroke. At the same time, the data collector is controlled to read and record the pressure value sensed by the pressure sensor in real time, and then the pressure value required for compression and the pressure value required for stability are obtained by judging the size between the recorded pressure value and the last recorded pressure value. Therefore, the above-mentioned test method can accurately test the stable pressure required to compress the thermally conductive material to a certain amount, so as to provide pressure data for the use of the thermally conductive material sheet, thereby providing accurate data support for the design scheme of the main engine manufacturer. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a data curve chart obtained by testing the existing thermal conductive material compression test method.

[0037] Figure 2 The figure is a flow chart of a thermal conductive material compression test method according to an embodiment of the present invention.

[0038] Figure 3 It is a schematic block diagram of a compression test device in a thermal conductive material compression test method according to an embodiment of the present invention.

[0039] Figure 4 It is an interface for setting product thickness of compression test equipment in the thermal conductive material compression test method according to an embodiment of the present invention.

[0040] Figure 5 It is a three-dimensional structural diagram of a compression device in a thermal conductive material compression test method according to an embodiment of the present invention.

[0041] Figure 6 This is a curve diagram showing the relationship between pressure and compression amount obtained by testing the thermal conductive material compression test method according to an embodiment of the present invention.

[0042] Figure 7 This is a module diagram of a thermal conductive material compression testing device according to an embodiment of the present invention.

[0043] Figure 8 4 is a system diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0045] Embodiment 1

[0046] See also Figures 2 to 6 The present invention discloses a thermal conductive material compression test method, which includes: being executed by a compression test device, the compression test device includes a compression device 2 and a data collector 3, the compression device 2 includes a driver 21 and a movable part 22, the movable part 22 is provided with a pressure sensor 23, the movable part 22 is provided at the driving end of the driver 21 corresponding to the test position where the thermal conductive material is placed, and the test method includes:

[0047] Furthermore, before step S101, the method further includes:

[0048] S11, performing zero point calibration on the pressure sensor 23;

[0049] It is understandable that before performing a compression test, the pressure sensor 23 needs to be zero-calibrated to avoid the influence of the previous compression test on the current compression test, thereby effectively improving the accuracy of the pressure value obtained by the compression test.

[0050] Furthermore, before step S101, the method further includes:

[0051] S12, controlling the driver 21 to drive the movable member 22 to reset;

[0052] Further, step S12 includes:

[0053] S121, controlling the driver 21 to drive the movable member 22 to move downward to the zero position;

[0054] S122, controlling the driver 21 to drive the movable member 22 to move upward to the ascending position;

[0055] It can be understood that the driver 21 includes a servo motor 211, and the zero position needs to be adjusted according to the accuracy and size of the pressure sensor 23 actually used. For example, in this embodiment, a 100KG pressure sensor 23 is used. When the data acquisition device 3 reads that the pressure sensor 23 senses a pressure value of 0.5KG, the corresponding position is set to the zero position; and the rising position is the limit position where the driver 21 drives the movable part 22 to rise. For example, in this embodiment, the limit position is the position of the servo motor 211 pulse 380000, and each pulse 8000 of the servo motor 211 corresponds to 1mm, but it is not limited to this.

[0056] S101, reading a set compression amount, and calculating a driving stroke according to the set compression amount;

[0057] Further, the compression amount is set to include product thickness and at least one compression percentage, and step S101 includes:

[0058] S1011. Read product thickness and compression percentage;

[0059] S1012, calculating the driving stroke required for compression to a corresponding compression percentage according to the read product thickness.

[0060] It is understandable that before performing the compression test, the product thickness needs to be input first. In this embodiment, the thermal conductive material with a thickness of 2 mm per unit area (1 square inch) is placed in the test position 11 for testing, and the corresponding compression percentage needs to be input in order to calculate the corresponding drive pulse value of the servo motor 211. For example, Figure 4 As shown, when the compression percentage of the compressed heat conductive material is set to 10%, 20%, and 30%, the driving pulse values ​​of the servo motor 211 corresponding to the driving stroke can be obtained by calculation to be 14400, 12800, and 11200, respectively, and the present invention is not limited thereto.

[0061] S102, driving the movable member 22 to move closer to the test position according to the calculated driving stroke;

[0062] It is understandable that if Figure 5 As shown, in this embodiment, the controller 4 is a control PCB board, which is responsible for executing the thermal conductive material compression test method. The driver 21 includes a servo motor 211 and a spiral lifting platform 212. The movable part 22 provided with a pressure sensor 23 is slidably disposed on the spiral lifting platform 212. The controller 4 controls the servo motor 211 to drive the movable part 22 to slide along the spiral lifting platform 212 close to the thermal conductive material placed on the test position 11, and applies a certain pressure thereto, so that the thermal conductive material is compressed to a set thickness compression percentage, but is not limited to this.

[0063] S103, controlling the data collector 3 to read and record the pressure value sensed by the pressure sensor 23 in real time;

[0064] It can be understood that in this embodiment, the data acquisition device 3 is a PLC data acquisition card connected to the pressure sensor 23. The high-speed data acquisition card can synchronously acquire the displacement data of the movable part 22 and the pressure data of the pressure sensor 23 in real time to control the vertical displacement of the movable part 22 and record the maximum pressure required to compress the thermal conductive material to a certain compression percentage and the stable pressure required to maintain the thermal conductive material at a certain compression percentage.

[0065] S104, determining the difference between the recorded pressure value and the last recorded pressure value, if the recorded pressure value is smaller than the last recorded pressure value, taking the last recorded pressure value as the required compression pressure value;

[0066] S105, continue to determine the difference between the recorded pressure value and the last recorded pressure value. If the recorded pressure value is equal to the last recorded pressure value, use the last recorded pressure value as the pressure value required for stabilization.

[0067] Furthermore, after step S105, the method further includes:

[0068] S106. Generate a curve graph of the relationship between pressure and compression using the multiple pressure values ​​recorded in step S103.

[0069] It should be noted that the pressure values ​​obtained when executing steps S103 to S105 can generate the following Figure 6The pressure and compression relationship curve shown in the figure can accurately know the maximum pressure and stable pressure required to compress the thermal conductive material to a certain compression percentage based on the generated relationship curve, so as to provide pressure data for the use of thermal conductive sheets, so that the host manufacturers who apply thermal conductive materials to computers can get data support when designing corresponding heat dissipation solutions. For example, when the host manufacturer customer needs to know how to compress the thickness of the thermal conductive material by 30%, then the pressure and compression relationship curve can be used to know that: 32.97LB of pressure is required to compress the thermal conductive material, and 5.19LB of pressure is required to maintain the thickness of the thermal conductive material compressed by 30%, and it is not limited to this.

[0070] Furthermore, after step S106, the method further includes:

[0071] S107, reading drawing setting values, the drawing setting values ​​including X length value and Y upper limit value;

[0072] S108. Regenerate the pressure-compression relationship curve graph according to the read drawing setting values.

[0073] It should be noted that adjusting the corresponding display settings according to the generated test curve can more intuitively display the relationship between pressure and compression, making it easier to generate a test report using the regenerated pressure and compression relationship curve.

[0074] In the present application, the pressure value required for compressing the thermally conductive material is detected by controlling the compression device 2 to compress the thermally conductive material in conjunction with the pressure sensor 23. First, the driving stroke is calculated according to the set compression amount read, and the movable part 22 is driven to move closer to the thermally conductive material at the test position according to the calculated driving stroke. At the same time, the data collector 3 is controlled to read and record the pressure value sensed by the pressure sensor 23 in real time, and then the pressure value required for compression and the pressure value required for stability are obtained by judging the size between the recorded pressure value and the last recorded pressure value. Therefore, the above-mentioned test method can accurately test the stable pressure required to compress the thermally conductive material to a certain amount, so as to provide pressure data for the use of the thermally conductive material sheet, thereby providing accurate data support for the design scheme of the main engine manufacturer.

[0075] Embodiment 2

[0076] See also Figure 2 and Figure 7 The present invention discloses a thermal conductive material compression test device, which comprises:

[0077] The reading and calculating module 201 is used to read the set compression amount and calculate the driving stroke according to the set compression amount;

[0078] A driving module 202, used for driving the movable member 22 to move closer to the test position according to the calculated driving stroke;

[0079] The reading and recording module 203 is used to control the data collector 3 to read and record the pressure value sensed by the pressure sensor 23 in real time;

[0080] The first judgment module 204 is used to judge the difference between the recorded pressure value and the last recorded pressure value. If the recorded pressure value is smaller than the last recorded pressure value, the last recorded pressure value is used as the required compression pressure value;

[0081] The second judgment module 205 is used to continue to judge the difference between the recorded pressure value and the last recorded pressure value. If the recorded pressure value is equal to the last recorded pressure value, the last recorded pressure value is used as the pressure value required for stability.

[0082] Embodiment 3

[0083] See also Figure 2 and Figure 8 , the present invention discloses an electronic device, comprising:

[0084] One or more processors 301;

[0085] One or more memories 302 are used to store one or more programs. When the one or more programs are executed by the processor, the processor implements the thermal conductive material compression test method as described above.

[0086] Embodiment 4

[0087] The embodiment of the present application discloses a computer-readable storage medium on which a program is stored. When the program is executed by a processor, the aforementioned thermal conductive material compression test method is implemented.

[0088] Embodiment 5

[0089] The embodiment of the present application discloses a computer program product or a computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device performs the above-mentioned thermal conductive material compression test method.

[0090] It should be understood that in the embodiments of the present application, the processor referred to may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0091] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by hardware related to computer program instructions, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM).

[0092] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A thermal conductive material compression test method, characterized in that: The test method is performed by a compression test device, the compression test device includes a compression device and a data collector, the compression device includes a driver and a movable part, the movable part is provided with a pressure sensor, and the movable part is provided at the driving end of the driver corresponding to the test position where the heat conductive material is placed. The test method includes: S101, reading a set compression amount, and calculating a driving stroke according to the set compression amount; S102, driving the movable member to move closer to the test position according to the calculated driving stroke; S103, controlling the data collector to read and record the pressure value sensed by the pressure sensor in real time; S104, determining the difference between the recorded pressure value and the last recorded pressure value, if the recorded pressure value is smaller than the last recorded pressure value, taking the last recorded pressure value as the required compression pressure value; S105, continue to determine the difference between the recorded pressure value and the last recorded pressure value. If the recorded pressure value is equal to the last recorded pressure value, use the last recorded pressure value as the pressure value required for stabilization.

2. The thermal conductive material compression test method according to claim 1, characterized in that: Before step S101, the method further includes: S11, performing zero point calibration on the pressure sensor.

3. The thermal conductive material compression test method according to claim 1, characterized in that: Before step S101, the method further includes: S12, controlling the driver to drive the movable part to reset.

4. The thermal conductive material compression test method according to claim 3, characterized in that: Step S12 includes: S121, controlling the driver to drive the movable member to move downward to a zero position; S122, controlling the driver to drive the movable member to move upward to a raised position.

5. The thermal conductive material compression test method according to claim 1, characterized in that: The set compression amount includes product thickness and at least one compression percentage, and step S101 includes: S1011, reading the product thickness and the compression percentage; S1012, calculating the driving stroke required for compression to a corresponding compression percentage according to the read product thickness.

6. The thermal conductive material compression test method according to claim 1, characterized in that: After step S105, the method further includes: S106. Generate a curve graph of the relationship between pressure and compression using the multiple pressure values ​​recorded in step S103.

7. The thermal conductive material compression test method according to claim 6, characterized in that: After step S106, the method further includes: S107, reading drawing setting values, wherein the drawing setting values ​​include an X length value and a Y upper limit value; S108: Regenerate the pressure-compression relationship curve graph according to the read drawing setting value.

8. A thermal conductive material compression test device, characterized in that: include: A reading and calculating module, used for reading a set compression amount and calculating a driving stroke according to the set compression amount; A driving module, used for driving the movable part to move closer to the testing position according to the calculated driving stroke; A reading and recording module, used to control the data collector to read and record the pressure value sensed by the pressure sensor in real time; The first judgment module is used to judge the difference between the recorded pressure value and the last recorded pressure value. If the recorded pressure value is smaller than the last recorded pressure value, the last recorded pressure value is used as the required compression pressure value; The second judgment module is used to continue to judge the size between the recorded pressure value and the last recorded pressure value. If the recorded pressure value is equal to the last recorded pressure value, the last recorded pressure value is used as the pressure value required for stability.

9. An electronic device, characterized in that: include: one or more processors; One or more memories are used to store one or more programs. When one or more of the programs are executed by the processor, the processor implements the thermal conductive material compression test method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a program stored thereon, characterized in that: When the program is executed by a processor, the thermal conductive material compression test method according to any one of claims 1 to 7 is implemented.

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