Rapid measurement device for thermal resistance

Abstract

The invention relates to the technical field of thermal resistance rapid measuring devices, in particular to a thermal resistance rapid measuring device which comprises a machining plate seat, a through groove is formed in the surface of the machining plate seat, a movable accessory is movably installed in the through groove and comprises a movable plate, and a motor is installed on the surface of the movable plate through a limiting accessory. The motor frequency converter end is provided with a first wire harness butt joint module, the right side of the first wire harness butt joint module is provided with two alternating current contactors, and the right sides of the alternating current contactors are connected with a double-arm bridge tester through wire harnesses. Before the motor operates, the first button switch is pressed, the first alternating current contactor pulls in the motor to operate for a temperature rise test, after the temperature rise is finished, the motor is completely stopped, the second button switch is pressed, the first alternating current contactor is disconnected, the power supply side is disconnected, the second alternating current contactor is pulled in, the thermal resistance can be directly measured, and at the moment, the stopwatch starts timing; and recording data.

Description

Technical Field

[0001] The invention relates to the technical field of hot resistance rapid measuring devices, in particular to a hot resistance rapid measuring device. Background Art

[0002] In the existing thermal resistance measurement technology, a multimeter or a bridge is usually used for measurement. However, these traditional methods have certain limitations when measuring thermal resistance.

[0003] Thermal resistance measurement uses a double-arm bridge measurement. This data is very important for motor detection. It has a relatively high measurement speed requirement and needs to be measured every once in a while. For the test of thermal resistance, the current method is to remove the cable after the motor temperature rise stops and clamp the double-arm bridge measurement line on the terminal for testing. The test speed is slow. At the same time, when measuring motors of different models, all related cable wires need to be removed. After the motor is replaced, the wiring operation is re-performed. There are many process steps, which affects the test rate. Therefore, a fast thermal resistance measurement device is needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A device for quickly measuring thermal resistance comprises a processing plate seat, a through groove is provided on the surface of the processing plate seat, and a movable accessory is movably installed in the through groove, the movable accessory comprises a movable plate, a motor is installed on the surface of the movable plate through a limit accessory, a first wiring harness docking module is provided at the motor inverter end, two AC contactors are provided on the right side of the first wiring harness docking module, a double-arm bridge tester is connected to the right side of the AC contactor through a wiring harness, a second wiring harness docking module is provided on the side of the movable plate, and two button switches are provided at the position of the processing plate seat surface close to the second wiring harness docking module, before the motor runs, the first button switch is pressed, the first AC contactor is energized to run the motor for a temperature rise test, after the temperature rise ends, the motor stops completely, the second button switch is pressed, the first AC contactor is disconnected, the power supply side is disconnected, and the second AC contactor is energized, so that the thermal resistance can be directly measured, and at this time an external stopwatch starts timing and records data, thereby improving the accuracy and test speed of the thermal resistance test.

[0006] Preferably, two guide rails are symmetrically connected on both sides of the movable plate, and the guide rails are embedded in the inner wall of the through groove of the processing plate seat through a guide groove. A handle is installed on the top side of the movable plate, and the guide rails can be guided by the guide groove of the processing plate seat to ensure the smooth movement of the movable plate. At the same time, the guide rails are designed with an arc-shaped structure to ensure the smooth movement of the guide rails.

[0007] Preferably, the second wiring harness docking module includes a sheet plate, the top of which is connected to a terminal, and the end of the terminal is fixedly connected to the shaft core, a hanging plate is installed on the inner wall of the processing plate seat groove, and the inner wall of the hanging plate is connected to a shaft cylinder, the shaft cylinder and the shaft core are plugged and docked with each other, and the sheet plate is pushed to move by the movable plate, so that the sheet plate can push the shaft core and the shaft cylinder to plug and dock with each other, so that the motor can quickly complete the line docking, ensuring the convenience of powering on the motor.

[0008] Preferably, a plug plate is connected to the top side of the sheet plate, and a rubber ring end is provided on the outer side of the bottom end of the plug plate. The plug plate is inserted into the movable plate through a slot, and the shaft core is adapted to the shaft tube. When the plug plate is inserted into the slot of the movable plate, the rubber ring end design on the outer side of the plug plate can increase the stability of the plug plate inserted in the slot of the movable plate.

[0009] Preferably, locking bolts are inserted through through holes on both sides of the top of the hanging plate, and the axial ends of the locking bolts are inserted into the processing plate seat through threaded holes. Grooves are symmetrically opened on the inner wall of the hanging plate, and metal block ends are arranged in the grooves. Magnets are symmetrically connected to the sides of the movable plate, and the magnets are magnetically docked with the metal block ends of the hanging plate. When the movable plate moves and drives the magnet to collide with the hanging plate, the metal block end of the hanging plate is magnetically docked with the magnet, which can ensure the stability of the movable plate after movement and the stability of the docking between the shaft core and the shaft cylinder.

[0010] Preferably, the first wiring harness docking module includes a wiring harness cable connected to the motor inverter end, and the wiring harness cable penetrates the left connecting plate and docks with the left inner contact piece, the inner wall of the left inner contact piece is in conflict with the right inner contact piece, and the right inner contact piece is fixed to the inner wall of the right connecting plate, and the right side of the right inner contact piece is docked with the AC contactor docking post end through the wiring harness, and the left connecting plate and the right connecting plate are brought close to each other so that the left inner contact piece is in contact with the right inner contact piece, thereby completing the quick docking and ensuring the convenience of electrical wiring harness docking between the motor and various electrical components and equipment.

[0011] Preferably, two bayonet pins are symmetrically connected at the center position of the inner wall of the right connecting plate, and the bayonet pins are inserted into the inside of the left connecting plate through a slot. When the right inner contact piece and the left inner contact piece are abutted and docked, the bayonet pins can be inserted into the slot on the inner side of the left connecting plate, thereby ensuring the convenience of module docking between the right connecting plate and the left connecting plate.

[0012] Preferably, forward and reverse start and stop buttons are installed on the side of the movable plate, and the limit accessories include two sliding rings, and card plates are symmetrically installed on the top of the two sliding rings. The sliding ring is installed inside the movable plate through a guide groove, and the sliding ring threaded sleeve is arranged on the surface of the opposing threaded shaft. One end of the opposing threaded shaft is rotatably installed on the inner wall of the movable plate guide groove, and the other end of the opposing threaded shaft passes through the movable plate and is connected to a driving motor, and the driving motor is installed inside the guard plate, and the guard plate is fixed to the side of the movable plate by bolts. The driving motor is powered on and started by pressing the forward and reverse start and stop buttons, and the shaft end of the driving motor drives the opposing threaded shaft to rotate, which can control the relative movement of the two sliding rings, so that the sliding ring drives the card plate to buckle the two sides of the seat end of the motor, thereby ensuring the stability of the motor installation.

[0013] Preferably, the card plate has an L-shaped structure, a hollow groove is opened on the surface of the card plate, and the inner wall of the card plate is equidistantly connected with rubber strip ends. The hollow groove design of the card plate can be observed during the process of the card plate clamping the motor seat end. At the same time, the rubber strip end design of the inner wall of the card plate can increase the friction force of the card plate on the surface of the motor seat end.

[0014] The present invention has at least the following beneficial effects: 1. By setting the circuit switching to measure the hot resistance, the measurement speed is faster. Compared with the traditional structure, this device presses the first button switch before the motor runs, and the first AC contactor is energized to run the motor for temperature rise test. After the temperature rise is over, the motor stops completely, and the second button switch is pressed. The first AC contactor is disconnected, the power supply side is disconnected, and the second AC contactor is energized. The hot resistance can be measured directly. At this time, the stopwatch starts timing and records data, which improves the accuracy and test speed of the hot resistance test.

[0015] 2. By setting movable accessories, motors, the first wiring harness docking module and the second wiring harness docking module, fast replacement and measurement of motors of different models can be realized. The device is docked with the terminal and respectively through the wiring harness. When docking, the bayonet is embedded in the slot of the left inner contact piece, and the right inner contact piece and the left inner contact piece are quickly contacted and docked. By pushing the movable plate, the movable plate control guide rail can slide in the guide groove of the processing plate seat, so that the forward and reverse start and stop buttons are magnetically docked with the sides of the hanging plate. At this time, the shaft core can be plugged into the shaft tube and powered on. The modular docking and replacement method can enable fast power-on measurement of motors of different models.

[0016] 3. By setting limit accessories, the limit fixation of motors of different models can be achieved. This device drives the opposite threaded shaft to rotate by rotating the shaft end of the driving motor. The two opposite external threads outside the opposite threaded shaft can control the relative movement of the two sliding rings. The sliding ring drives the card plate to move, and then fix the seat end of the motor to prevent the motor from being displaced by collision and causing the module interface of the wiring harness to spread. An L-shaped rubber plate end is set on the inner side of the card plate, which can wrap the rubber plate end to protect the motor seat end and avoid damage to the motor seat end during fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the external structure of a thermal resistance rapid measurement device proposed by the present invention; Figure 2 It is a schematic diagram of the three-dimensional docking structure of the first wiring harness docking module, the AC contactor and the double-arm bridge tester in a hot resistance rapid measurement device proposed by the present invention; Figure 3 It is a three-dimensional disassembled structural schematic diagram of a first wiring harness docking module in a thermal resistance rapid measurement device proposed by the present invention; Figure 4 It is a three-dimensional disassembled structural schematic diagram of a movable accessory and a second wiring harness docking module in a thermal resistance rapid measurement device proposed by the present invention; Figure 5 It is a three-dimensional disassembled structural schematic diagram of a second wiring harness docking module in a thermal resistance rapid measurement device proposed by the present invention; Figure 6 This is a schematic diagram of the partially disassembled structure of a movable accessory in a thermal resistance rapid measurement device proposed by the present invention; Figure 7 A schematic diagram of the three-dimensional structure of a limit fitting in a hot resistance rapid measurement device proposed by the present invention; Figure 8 The present invention provides a schematic diagram of the circuit connection state of a device for rapid measurement of thermal resistance.

[0019] In the figure: 1. Processing plate seat; 2. Movable accessories; 21. Movable plate; 22. Guide rail; 23. Magnet; 24. Grip; 25. Forward and reverse start / stop button; 3. Motor; 4. First wiring harness docking module; 41. Left connecting plate; 42. Wiring harness cable; 43. Left inner contact piece; 44. Right inner contact piece; 45. Right connecting plate; 46. Bayonet; 5. AC contactor; 6. Double-arm bridge tester; 7. Push button switch; 8. Limit accessories; 81. Sliding sleeve ring; 82. Opposite threaded shaft; 83. Card plate; 84. Drive motor; 85. Guard plate; 9. Second wiring harness docking module; 91. Plate; 92. Terminal; 93. Shaft core; 94. Insert plate; 95. Shaft cylinder; 96. Hanging plate; 97. Locking bolt. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] Reference Figure 1-8 A device for quickly measuring thermal resistance includes a processing plate seat 1, a through groove is provided on the surface of the processing plate seat 1, and a movable accessory 2 is movably installed in the through groove, the movable accessory 2 includes a movable plate 21, a motor 3 is installed on the surface of the movable plate 21 through a limit accessory 8, a first wiring harness docking module 4 is provided at the inverter end of the motor 3, two AC contactors 5 are provided on the right side of the first wiring harness docking module 4, and a double-arm bridge tester 6 is connected to the right side of the AC contactor 5 through a wiring harness, a second wiring harness docking module 9 is provided on the side of the movable plate 21, and two button switches 7 are provided at a position close to the second wiring harness docking module 9 on the surface of the processing plate seat 1.

[0022] Two guide rails 22 are symmetrically connected to both sides of the movable plate 21 , and the guide rails 22 are embedded in the inner wall of the through groove of the processing plate seat 1 through the guide groove. A handle 24 is installed on the top side of the movable plate 21 .

[0023] The second wiring harness docking module 9 includes a plate 91, the top of which is connected to a terminal 92, and the end of the terminal 92 is fixedly connected to an axis core 93, a hanging plate 96 is installed on the inner wall of the through groove of the processing plate seat 1, and the inner wall of the hanging plate 96 is connected to a shaft cylinder 95, and the shaft cylinder 95 and the axis core 93 are plugged and docked with each other.

[0024] The top side of the sheet plate 91 is connected with an inserting plate 94 , and the outer side of the bottom end of the inserting plate 94 is provided with a rubber ring end, and the inserting plate 94 is inserted into the movable plate 21 through a slot.

[0025] Locking bolts 97 are inserted through through holes on both sides of the top of the hanging plate 96, and the axial ends of the locking bolts 97 are inserted into the processing plate seat 1 through threaded holes. Grooves are symmetrically opened on the inner wall of the hanging plate 96, and metal block ends are arranged in the grooves. Magnets 23 are symmetrically connected to the sides of the movable plate 21, and the magnets 23 are magnetically connected to the metal block ends of the hanging plate 96.

[0026] The first wiring harness docking module 4 includes a wiring harness cable 42 connected to the inverter end of the motor 3, and the wiring harness cable 42 penetrates the left connecting plate 41 and docks with the left inner contact piece 43, the inner wall of the left inner contact piece 43 abuts against the right inner contact piece 44, the right inner contact piece 44 is fixed to the inner wall of the right connecting plate 45, and the right side of the right inner contact piece 44 is docked with the docking pile end of the AC contactor 5 through the wiring harness.

[0027] Two latching pins 46 are symmetrically connected at the center of the inner wall of the right connecting plate 45 , and the latching pins 46 are inserted into the left connecting plate 41 through a latching slot.

[0028] A forward and reverse start and stop button 25 is installed on the side of the movable plate 21, and the limit accessory 8 includes two sliding rings 81, and a clamping plate 83 is symmetrically installed on the top of the two sliding rings 81. The sliding ring 81 is installed inside the movable plate 21 through a guide groove. The sliding ring 81 is threadedly sleeved on the surface of the opposing threaded shaft 82, and one end of the opposing threaded shaft 82 is rotatably installed on the inner wall of the guide groove of the movable plate 21, and the other end of the opposing threaded shaft 82 passes through the movable plate 21 and is connected to a drive motor 84, and the drive motor 84 is installed inside the guard plate 85, and the guard plate 85 is fixed to the side of the movable plate 21 by bolts.

[0029] The card plate 83 is in an L-shaped structure, a hollow groove is formed on the surface of the card plate 83, and rubber strip ends are equidistantly connected to the inner wall of the card plate 83.

[0030] Before the motor 3 runs, press the first button switch 7, the first AC contactor 5 is energized to run the motor 3 for a temperature rise test. After the temperature rise is completed, the motor 3 stops completely. Press the second button switch 7, the first AC contactor 5 is disconnected, the power supply side is disconnected, and the second AC contactor 5 is energized. The thermal resistance can be directly measured. At this time, the external stopwatch starts timing and recording data, thereby improving the accuracy and speed of the thermal resistance test.

[0031] The guide rail 22 can be guided by processing the guide groove of the plate seat 1 to ensure the smooth movement of the movable plate 21. At the same time, the guide rail 22 is designed in an arc shape to ensure the smooth movement of the guide rail 22. The movable plate 21 can be easily pushed and displaced by holding it with the handle 24. When the motor 3 is placed on the surface of the movable plate 21, the movable plate 21 pushes the plate 91 to move, so that the plate 91 can push the shaft core 93 and the shaft tube 95 to plug and dock with each other, so that the motor 3 can quickly complete the line docking, ensuring the convenience of powering on the motor 3. The modular docking design improves the replacement of motors of different models 3, when the motor 3 is replaced, the plug plate 94 can be inserted into the slot of the movable plate 21, which is convenient for installing the sheet plate 91 on the side of the movable plate 21, so that the shaft core 93 and the shaft cylinder 95 are adapted. When the plug plate 94 is inserted into the slot of the movable plate 21, the rubber ring end design on the outside of the plug plate 94 can increase the stability of the plug plate 94 inserted in the slot of the movable plate 21. When the hanging plate 96 is installed on the side of the through groove of the processing plate seat 1, the locking bolt 97 can pass through the hanging plate 96 and then be inserted into the threaded hole of the processing plate seat 1, ensuring the convenience of installing the hanging plate 96 on the side of the through groove of the processing plate seat 1.

[0032] When the movable plate 21 moves and drives the magnet 23 to contact the hanging plate 96, the metal block end of the hanging plate 96 is magnetically connected to the magnet 23, which can ensure the stability of the movable plate 21 after movement, ensure the stability of the connection between the shaft core 93 and the shaft cylinder 95, and prevent the movable plate 21 from easily sliding and causing power failure. When the motor 3 is electrically connected to the AC contactor 5, the left connecting plate 41 and the right connecting plate 45 are close to each other, so that the left inner contact piece 43 and the right inner contact piece 44 are in contact, and the quick connection can be completed, ensuring the convenience of connecting the electrical wiring harness between the motor 3 and various electrical components and equipment. When the right inner contact piece 44 and the left inner contact piece 43 are close to each other, the latch pin 46 can be inserted into the inner slot of the left connecting plate 41 to ensure the convenience of module connection between the right connecting plate 45 and the left connecting plate 41, and at the same time effectively prevent the left connecting plate 41 and the right connecting plate 45 from being pulled apart, so as to ensure the stability of the connection between the right inner contact piece 44 and the left inner contact piece 43.

[0033] When the motor 3 is installed on the surface of the movable plate 21, the drive motor 84 can be powered on and started by pressing the forward and reverse start / stop buttons 25. The shaft end of the drive motor 84 drives the opposite threaded shaft 82 to rotate, and the two sliding rings 81 can be controlled to move relative to each other, so that the sliding ring 81 drives the clamping plate 83 to buckle the two sides of the seat end of the motor 3, thereby ensuring the stability of the installation of the motor 3.

[0034] A center indicator strip is provided on the surface of the movable plate 21, which can facilitate the placement of motors 3 of different models at the matching positions on the surface of the movable plate 21 to avoid the situation where the wiring harness is not long enough. The hollow groove design of the card plate 83 can be observed during the process of the card plate 83 clamping the seat end of the motor 3. At the same time, the rubber strip end design on the inner wall of the card plate 83 can increase the friction force of the card plate 83 on the surface of the seat end of the motor 3, and the rubber strip end can protect the card plate 83 during clamping.

[0035] In the present application, two AC contactors 5 and push button switches 7 are arranged in parallel, and in actual situations, the number can be freely changed according to the progress of the experiment.

[0036] Working principle: According to the attached Figure 1 With attached Figure 8 As shown, before the motor 3 runs, the first button switch 7 is pressed, the first AC contactor 5 is closed, the motor 3 runs to perform a temperature rise test, after the temperature rise is completed, the motor 3 is completely stopped, the second button switch 7 is pressed, the first AC contactor 5 is disconnected, the power supply side is disconnected, and the second AC contactor 5 is closed, and the hot resistance can be directly measured. At this time, the stopwatch starts timing and records data, thereby improving the accuracy and test speed of the hot resistance test; Secondly, according to the attached Figure 3 As shown, the motor 3 can be placed on the surface of the movable plate 21, and the bayonet 46 and the left connecting plate 41 can be displaced and squeezed and docked up and down, so that the bayonet 46 can be buckled inside the left connecting plate 41, and the left inner contact piece 43 and the right inner contact piece 44 can be contacted and docked, and the terminal 92 is inserted into the slot on the top side of the movable plate 21, so that the plate 91 can be fixed on the side of the movable plate 21, and the handle 24 can be held and pushed, and the handle 24 can push the movable plate 21 to move, and the movable plate 21 can drive the guide rail 22 to slide quickly in the guide groove of the processing plate seat 1, so that the magnet 23 and the metal block ends on both sides of the hanging plate 96 are magnetically docked, and at this time, the shaft core 93 can be plugged and docked with the shaft cylinder 95, and then the power-on operation is completed; Finally, according to the attached Figure 6 With attached Figure 7 As shown, when the motor 3 is placed on the surface of the movable plate 21, the forward and reverse start-stop buttons 25 are pressed to control the driving motor 84 to be energized, and the shaft end of the driving motor 84 can drive the opposite threaded shaft 82 to rotate, so that the opposite threaded shaft 82 rotates to control the relative movement of the two sliding rings 81, and the movement of the sliding ring 81 can drive the clamping plate 83 to move, and then the clamping plate 83 is buckled and fixed to the seat end of the motor 3 to prevent displacement.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A thermal resistance rapid measurement device, comprising a processing plate seat (1), characterized in that: The processing plate seat (1) has a through groove on its surface, and a movable accessory (2) is movably installed in the through groove, the movable accessory (2) comprising a movable plate (21), a motor (3) being installed on the surface of the movable plate (21) via a limit accessory (8), a first wiring harness docking module (4) being provided at the inverter end of the motor (3), two AC contactors (5) being provided on the right side of the first wiring harness docking module (4), a double-arm bridge tester (6) being connected to the right side of the AC contactor (5) via a wiring harness, a second wiring harness docking module (9) being provided on the side of the movable plate (21), and two button switches (7) being provided on the surface of the processing plate seat (1) at a position close to the second wiring harness docking module (9).

2. A thermal resistance rapid measurement device according to claim 1, characterized in that: Two guide rails (22) are symmetrically connected to the two sides of the movable plate (21), and the guide rails (22) are embedded in the inner wall of the through groove of the processing plate seat (1) through the guide groove. A handle (24) is installed on the top side of the movable plate (21).

3. A thermal resistance rapid measurement device according to claim 2, characterized in that: The second wiring harness docking module (9) comprises a plate (91), the top end of the plate (91) being connected to a terminal post (92), and the bottom end of the terminal post (92) being connected and fixed to an axle core (93); a hanging plate (96) being installed on the inner wall of the through groove of the processing plate seat (1), and the inner wall of the hanging plate (96) being connected to an axle cylinder (95), and the axle cylinder (95) and the axle core (93) being plugged and docked with each other.

4. A thermal resistance rapid measurement device according to claim 3, characterized in that: The top side of the sheet plate (91) is connected to an insert plate (94), and a rubber ring end is arranged on the outside of the bottom end of the insert plate (94). The insert plate (94) is inserted into the inside of the movable plate (21) through a slot.

5. A thermal resistance rapid measurement device according to claim 3, characterized in that: Locking bolts (97) are inserted through through holes on both sides of the top of the hanging plate (96), and the axial ends of the locking bolts (97) are inserted into the processing plate seat (1) through threaded holes. The inner wall of the hanging plate (96) is symmetrically provided with grooves, and metal block ends are arranged in the grooves. The side of the movable plate (21) is symmetrically connected with magnets (23), and the magnets (23) are magnetically connected to the metal block ends of the hanging plate (96).

6. A thermal resistance rapid measurement device according to claim 1, characterized in that: The first wiring harness docking module (4) comprises a wiring harness cable (42) connected to the inverter end of the motor (3), and the wiring harness cable (42) penetrates the left connection plate (41) and docks with the left inner contact piece (43), the inner wall of the left inner contact piece (43) abuts against the right inner contact piece (44), the right inner contact piece (44) is fixed to the inner wall of the right connection plate (45), and the right side of the right inner contact piece (44) docks with the docking pile end of the AC contactor (5) through the wiring harness.

7. A thermal resistance rapid measurement device according to claim 6, characterized in that: Two latching pins (46) are symmetrically connected at the center of the inner wall of the right connecting plate (45), and the latching pins (46) are inserted into the interior of the left connecting plate (41) through a latching slot.

8. A thermal resistance rapid measurement device according to claim 1, characterized in that: A forward and reverse start / stop button (25) is installed on the side of the movable plate (21); the limit fitting (8) comprises two sliding rings (81); a clamping plate (83) is symmetrically installed on the top of the two sliding rings (81); the sliding rings (81) are installed inside the movable plate (21) through a guide groove; the sliding rings (81) are threadedly sleeved on the surface of an opposing threaded shaft (82); one end of the opposing threaded shaft (82) is rotatably installed on the inner wall of the guide groove of the movable plate (21); the other end of the opposing threaded shaft (82) passes through the movable plate (21) and is connected to a driving motor (84); the driving motor (84) is installed inside a guard plate (85); and the guard plate (85) is fixed to the side of the movable plate (21) by bolts.

9. A thermal resistance rapid measurement device according to claim 8, characterized in that: The card plate (83) has an L-shaped structure, a hollow groove is provided on the surface of the card plate (83), and rubber strip ends are equidistantly connected to the inner wall of the card plate (83).

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