Novel material thermal performance comparison test device

Abstract

The utility model discloses a novel material thermal performance comparison test device, which relates to the technical field of thermal performance test, and comprises a test board, a test tool is arranged at the upper end of the test board, the test tool comprises a base, the base is fixedly connected with the surface of the test board, the upper end of the base is fixedly connected with a heating module, a test workpiece is arranged above the heating module, and the test workpiece is arranged on the test board. A liquid cooling radiator and a heating module are arranged above the test workpiece, the surfaces, in contact with each other, of the test workpiece and the liquid cooling radiator are coated with heat conduction paste, an instrument desk is fixedly connected above the test board, various detection gauges are embedded in the instrument desk, three temperature test points are arranged on the heating module and the test workpiece, and a thermocouple is used for temperature measurement. Under the condition that the test conditions such as the water cooling flow and the test voltage are the same, the temperatures of the three test points are recorded, the thermal performance of the test workpiece is compared according to the temperature difference, and the device has the advantages of being small in size, stable in performance, low in cost and high in efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal performance testing, in particular to a new type of material thermal performance comparison testing device. Background Art

[0002] In fields such as electric power, rail transportation, new energy, servers, mobile communications, aerospace, medical equipment, precision parts and automotive parts that have high requirements for the thermal resistance of components, materials and components are usually required to meet high heat dissipation performance requirements. When conducting thermal performance tests on materials and components, high efficiency and low cost requirements must be met.

[0003] In the prior art, testing the thermal properties of materials requires the use of dedicated thermal resistance testing equipment, or sending the materials to a third-party testing agency for testing. The testing cost is high and the cycle is long. At the same time, material performance verification requires the use of professional imported equipment to test the thermal conductivity K value of the material. The equipment is expensive, the test cycle is long, and the cost is high. Therefore, there is an urgent need for a low-cost and fast material thermal performance comparison test device. Utility Model Content

[0004] In order to solve the above technical problems, a new material thermal performance comparison test device is provided. This technical solution solves the problems of high cost and long test cycle of material thermal performance testing.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A new material thermal performance comparison test device comprises a test bench, a test fixture is provided at the upper end of the test bench, the test fixture comprises a base, the base is arranged in a square shape and is fixedly connected to the surface of the test bench, the four corners of the upper end of the base are fixedly connected to connecting columns, a heating module is fixedly connected to the middle of the upper end of the base, a test workpiece is provided above the heating module, a liquid cooling radiator is provided above the test workpiece, and an instrument panel is fixedly connected to the upper end of the test bench;

[0007] Preferably, the instrument panel includes a differential pressure gauge, which is embedded in the front end of the instrument panel, a turbine flowmeter is provided on the right side of the differential pressure gauge, a pressure gauge is provided on the right side of the turbine flowmeter, a float flowmeter is provided on the right side of the pressure gauge, the turbine flowmeter, the pressure gauge and the float flowmeter are all embedded in the front end of the instrument panel, a plurality of control buttons are provided on the right side of the float flowmeter, and a pressure regulator is installed on the top of the instrument panel.

[0008] Preferably, a water inlet is provided at the front end of the instrument panel, a drain outlet is provided on one side of the water inlet, the water inlet and the drain outlet are respectively located on both sides of the test tooling, pipe openings matching the water inlet and the drain outlet are respectively provided on both sides of the liquid cooling radiator and are connected to them by water pipes, and a switch is provided at the water pipe interface.

[0009] Preferably, a first thermocouple is provided at one end of the heating module close to the test workpiece, a second thermocouple is provided at one end of the test workpiece close to the heating module, and a third thermocouple is provided at the other end of the test workpiece. The first thermocouple, the second thermocouple and the third thermocouple are arranged on the same side of the heating module and the test workpiece and are all electrically connected to the temperature display.

[0010] Preferably, the contact surface between the test workpiece and the liquid cooling radiator is coated with thermal conductive paste.

[0011] Preferably, a temperature-controlled water tank is provided below the test bench, and a cabinet door is provided at the front end of the temperature-controlled water tank.

[0012] Preferably, a heating rod is provided inside the heating module, and the heating rod is electrically connected to an external power source.

[0013] Preferably, a front end of the voltage regulator is provided with a plurality of terminals, an input end of the voltage regulator is electrically connected to an external circuit, and an output end of the voltage regulator is electrically connected to a test fixture.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The test fixture in the utility model is assembled by bolts and nuts, which is convenient to install and disassemble, and the test workpiece can be replaced more quickly, thereby improving the efficiency of the test.

[0016] 2. The utility model integrates the advantages of precision accessories into one, and has the characteristics of small size, stable performance and high precision. The test is intelligent and convenient, and the operation is simple. Compared with other similar equipment, it has the advantages of low cost and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the testing tooling in the utility model.

[0019] The numbers in the figure are:

[0020] 1. Test bench; 11. Cabinet door; 2. Test tooling; 21. Base; 22. Connecting column; 23. Heating module; 24. Test workpiece; 25. Liquid cooling radiator; 26. First thermocouple; 27. Second thermocouple; 28. Third thermocouple; 3. Instrument panel; 31. Differential pressure gauge; 32. Turbine flowmeter; 33. Pressure gauge; 34. Float flowmeter; 35. Control button; 36. Water inlet; 37. Drain; 4. Pressure regulator. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] like Figure 1-2As shown, a new material thermal performance comparison test device includes a test bench 1, a test fixture 2 is provided at the upper end of the test bench 1, and the test fixture 2 includes a base 21, the base 21 is set to be square and fixedly connected to the surface of the test bench 1, and the four corners of the upper end of the base 21 are fixedly connected to connecting columns 22, and the connecting columns 22 extend upward through the upper cover plate and fix the cover plate through nuts. A heating module 23 is fixedly connected to the middle part of the upper end of the base 21, and a plurality of heating rods are provided inside the heating module 23. The power of each heating rod is 100W, and the heating rod The test workpiece 24 is electrically connected to an external power source. A test workpiece 24 is arranged above the heating module 23. The contacting sides of the heating module 23 and the test workpiece 24 are coated with thermal conductive paste. The thermal conductive paste can effectively conduct the heat of the two interfaces, so that the test workpiece 24 is quickly heated. A liquid cooling radiator 25 is arranged above the test workpiece 24. Thermal conductive paste is also coated between the liquid cooling radiator 25 and the test workpiece 24. The liquid cooling radiator 25 quickly dissipates the heat from the top of the test workpiece 24, thereby increasing the temperature difference between the two ends of the test workpiece 24. The top of the test bench 1 is fixedly connected to The instrument platform 3 is connected to the instrument platform 3, and the instrument platform 3 includes a differential pressure gauge 31. The differential pressure gauge 31 is embedded in the front end of the instrument platform 3. The differential pressure gauge 31 is used to accurately display the pressure difference value at both ends of the test workpiece 24. A turbine flowmeter 32 is provided on the right side of the differential pressure gauge 31, a pressure gauge 33 is provided on the right side of the turbine flowmeter 32, and a float flowmeter 34 is provided on the right side of the pressure gauge 33. The turbine flowmeter 32, the pressure gauge 33 and the float flowmeter 34 are all embedded in the front end of the instrument platform 3. The turbine flowmeter 32 and the float flowmeter 34 are used to check the flow value during the test. The meter 32 and the float flowmeter 34 re-compare and verify the test data to make the test data more accurate. A plurality of control buttons 35 are provided on the right side of the float flowmeter 34. The control buttons 35 include a power switch, a water temperature control key, a test start and stop key, and a flow control knob. A voltage regulator 4 is installed on the top of the instrument panel 3. A plurality of terminals are provided at the front end of the voltage regulator 4. The input end of the voltage regulator 4 is electrically connected to the external circuit, and the output end of the voltage regulator 4 is electrically connected to the test fixture 2. The voltage regulator 4 adjusts the voltage value to meet the test requirements during the test.

[0023] like Figure 2 As shown, a water inlet 36 is provided at the front end of the instrument panel 3, a drain outlet 37 is provided on one side of the water inlet 36, the water inlet 36 and the drain outlet 37 are respectively located on both sides of the test fixture 2, and pipe openings matching the water inlet 36 and the drain outlet 37 are respectively provided on both sides of the liquid cooling radiator 25 and connected with them by water pipes, a switch is provided at the water pipe interface, a temperature-controlled water tank is provided under the test bench 1, the water inlet 36 and the drain outlet 37 are respectively connected with the temperature-controlled water tank, and filters are installed in the pipelines for filtering impurities in the water tank and the pipelines, and a cabinet door 11 is provided at the front end of the warm water tank.

[0024] Among them, a first thermocouple 26 is provided at one end of the heating module 23 close to the test workpiece 24, a second thermocouple 27 is provided at one end of the test workpiece 24 close to the heating module 23, and a third thermocouple 28 is provided at the other end of the test workpiece 24. The first thermocouple 26, the second thermocouple 27 and the third thermocouple 28 are arranged on the same side of the heating module 23 and the test workpiece 24 and are all electrically connected to the temperature display. When testing, the temperatures at the three thermocouples can be recorded by the temperature display, and the thermal performance of the test workpiece 24 can be compared and evaluated through the temperature difference between the second thermocouple 27 and the third thermocouple 28.

[0025] The principle of the utility model is as follows: when conducting a thermal performance test of a material, first apply thermal conductive paste on the upper surface of the heating module 23, then assemble the test workpiece 24 to the top of the heating module 23, apply thermal conductive paste on the upper surface of the test workpiece 24, and assemble the liquid cooling radiator 25 to the top of the test workpiece 24, then fix the cover plate above the test fixture 2 with nuts to complete the test assembly, then assemble thermocouples at the three test points respectively, and then connect the water inlet 36 and the drain outlet 37 to the pipe openings at both ends of the liquid cooling radiator 25 through water pipes respectively, then connect the thermocouple to the temperature display and record the initial temperature of the test point at this time, press the power switch, water temperature control key and test start and stop key in sequence, and the test will start. The water flow is adjusted by checking the turbine flowmeter 32 and the float flowmeter 34, the voltage regulator 4 is started and the output voltage is adjusted to the required value for the test, the heating module 23 is powered on, and when the monitoring temperature of the first thermocouple 26 reaches the test requirements, the monitoring temperatures of the second thermocouple 27 and the third thermocouple 28 are recorded. While keeping the test conditions such as the water cooling flow and the test voltage the same, the monitoring temperatures of the second thermocouple 27 and the third thermocouple 28 of different test workpieces 24 when the monitoring temperature of the first thermocouple 26 is the same are recorded. By obtaining the temperature difference between the second thermocouple 27 and the third thermocouple 28 and feeding it back to the display terminal, the thermal properties of different materials can be compared and evaluated to meet the test requirements.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A new material thermal performance comparison test device, characterized in that: The invention comprises a test bench (1), wherein a test fixture (2) is provided at the upper end of the test bench (1), wherein the test fixture (2) comprises a base (21), wherein the base (21) is arranged in a square shape and is fixedly connected to the surface of the test bench (1), wherein four corners of the upper end of the base (21) are fixedly connected to connecting columns (22), wherein a heating module (23) is fixedly connected to the middle of the upper end of the base (21), wherein a test workpiece (24) is provided above the heating module (23), wherein a liquid cooling radiator (25) is provided above the test workpiece (24), and wherein an instrument panel (3) is fixedly connected to the upper end of the test bench (1); The instrument panel (3) comprises a differential pressure gauge (31), the differential pressure gauge (31) is embedded in the front end of the instrument panel (3), a turbine flow meter (32) is arranged on the right side of the differential pressure gauge (31), a pressure gauge (33) is arranged on the right side of the turbine flow meter (32), a float flow meter (34) is arranged on the right side of the pressure gauge (33), the turbine flow meter (32), the pressure gauge (33) and the float flow meter (34) are all embedded in the front end of the instrument panel (3), a plurality of control buttons (35) are arranged on the right side of the float flow meter (34), and a pressure regulator (4) is installed on the top of the instrument panel (3).

2. A novel material thermal performance comparison test device according to claim 1, characterized in that: The front end of the instrument panel (3) is provided with a water inlet (36), and one side of the water inlet (36) is provided with a drain outlet (37). The water inlet (36) and the drain outlet (37) are respectively located on two sides of the test fixture (2). The two sides of the liquid cooling radiator (25) are respectively provided with pipe openings matching the water inlet (36) and the drain outlet (37) and connected with the water inlet (36) and the drain outlet (37) by means of a water pipe, and a switch is provided at the water pipe interface.

3. The new material thermal performance comparison test device according to claim 1, characterized in that: A first thermocouple (26) is provided at one end of the heating module (23) close to the test workpiece (24), a second thermocouple (27) is provided at one end of the test workpiece (24) close to the heating module (23), and a third thermocouple (28) is provided at the other end of the test workpiece (24); the first thermocouple (26), the second thermocouple (27) and the third thermocouple (28) are arranged on the same side of the heating module (23) and the test workpiece (24) and are all electrically connected to a temperature display.

4. The new material thermal performance comparison test device according to claim 1, characterized in that: The contact surface between the test workpiece (24) and the liquid cooling radiator (25) is coated with thermal conductive paste.

5. The new material thermal performance comparison test device according to claim 1, characterized in that: A temperature-controlled water tank is provided below the test bench (1), and a cabinet door (11) is provided at the front end of the temperature-controlled water tank.

6. The new material thermal performance comparison test device according to claim 1, characterized in that: A heating rod is provided inside the heating module (23), and the heating rod is electrically connected to an external power source.

7. The new material thermal performance comparison test device according to claim 1, characterized in that: A plurality of connecting posts are provided at the front end of the voltage regulator (4); an input end of the voltage regulator (4) is electrically connected to an external circuit; and an output end of the voltage regulator (4) is electrically connected to a test fixture (2).

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