A performance testing device for resistor production

Abstract

The application relates to a performance testing device for resistor production, which comprises a base, an exhaust cavity and a heating cavity formed in the base by a partition, an electric heating device arranged in the heating cavity, a heat preservation box detachably connected to the top of the base, a rotating pipe with spray holes arranged on the periphery and rotatably connected in the heat preservation box, a gas conveying structure for conveying hot gas into the rotating pipe installed on the base, a temperature sensor and a humidity sensor connected with a controller installed on the heat preservation box, which can monitor the temperature and humidity in the heat preservation box in real time, so that the user can control the hot gas flow conveyed into the heat preservation box by the air pump and the humidity flow conveyed into the heat preservation box by the humidity pipeline through the controller during the testing process, and the electric resistance tester can test the electric variable of the resistor under any temperature and humidity conditions, the temperature and humidity in the heat preservation box can also be set to superimpose test the resistor, and the accuracy of the electric variable test result of the resistor is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of resistor testing technology, and specifically relates to a performance testing device for resistor production. Background Technology

[0002] A resistor, commonly referred to simply as a resistor in everyday life, is a current-limiting component. Once connected in a circuit, its resistance value is fixed. Resistors typically have two leads, which limit the current flowing through the branch they are connected to. Resistors with a fixed resistance value are called fixed resistors, while those with a variable resistance value are called potentiometers or variable resistors. After manufacturing, resistors require performance testing.

[0003] Current testing methods generally involve directly measuring the electrical change of a resistor using a resistance tester. However, the electrical change of a resistor can vary under different temperature and humidity conditions. Therefore, directly measuring the electrical change of a resistor using a resistance tester may result in inaccurate test results. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and rationally designed performance testing device for resistor production in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A performance testing device for resistor production includes a base, in which an exhaust chamber and a heating chamber are formed by a partition. An electric heating device is installed in the heating chamber. A heat preservation box is detachably connected to the top of the base. A rotating tube with spray holes on its periphery is rotatably connected inside the heat preservation box. A gas supply structure for supplying hot gas into the rotating tube is installed on the base. One end of the rotating tube is fixedly connected to one end of a connecting shaft. The other end of the connecting shaft rotatably passes through the side wall of the heat preservation box and is equipped with a fan blade. A clamping structure is provided below the rotating tube. Both ends of the clamping structure are rotatably connected to the inner wall of the heat preservation box through insulating shafts. The connecting shaft and the insulating shaft below it are connected by a transmission device.

[0007] A moisture generator is installed at the end of the base away from the gas supply structure. The exhaust chamber is connected to the air inlet of the moisture generator through a pipe. A duct is fitted around the fan blade with one end fixed to the outer wall of the insulation box. The exhaust end of the moisture generator is connected to the duct through a corrugated pipe. An exhaust structure for supplying moisture into the insulation box is also connected to the moisture generator.

[0008] A temperature sensor and a humidity sensor are installed on one side of the insulated box, a controller is installed on the other side of the insulated box, and a resistance tester is fixedly connected to the top of the insulated box.

[0009] As a further optimization of the present invention, the electric heating device includes an electric heating wire fixedly installed in the heating cavity, and multiple air extraction holes are provided on the side walls of the heating cavity on both sides of the electric heating wire.

[0010] As a further optimization of the present invention, a sealing plate for sealing the top opening of the exhaust chamber and the heating chamber is fixedly connected to the top of the partition plate. The sealing plate above the exhaust chamber has a plurality of matrix-distributed through holes, and the heat preservation box communicates with the exhaust chamber through the through holes.

[0011] As a further optimization of the present invention, the gas supply structure includes a gas pump fixedly installed on the outer wall of the base, the gas pump's suction end is connected to the interior of the heating chamber, the gas pump's exhaust end is connected to a gas supply pipe, and the end of the gas supply pipe away from the gas pump is connected to the rotating pipe through a connector.

[0012] As a further optimization of the present invention, the clamping structure includes a U-shaped rotating seat, on which elastic electrodes are fixedly connected to adjacent sides of two vertical sections of the rotating seat. A resistor is clamped and fixed between the two elastic electrodes and electrically connected to the elastic electrodes. A conductive rod is fixedly connected to each of the two elastic electrodes. The end of the conductive rod away from the elastic electrode passes through the vertical section of the rotating seat and is fixed to the insulating shaft.

[0013] As a further optimization of the present invention, a conductive ring is sleeved on the middle section of the conductive rod, the conductive ring is rotatably connected to the conductive rod, and a wire is connected to the outer wall of the conductive ring. The end of the wire away from the conductive ring passes through the side wall of the heat preservation box and is electrically connected to the resistance tester.

[0014] As a further optimization of the present invention, the transmission device includes a synchronous pulley fixedly sleeved on the middle section of the connecting shaft and the insulating shaft, the two synchronous pulleys being arranged vertically and connected by a synchronous belt.

[0015] As a further optimization of the present invention, the moisture generating device includes a water tank fixed to the end of the base by a bracket, a copper pipe is provided inside the water tank, the exhaust chamber is connected to the bottom end of the copper pipe through a pipe, and the top end of the copper pipe is fixed to the corrugated pipe.

[0016] As a further optimization of the present invention, a water supply pipe is fixedly installed on the top wall of the water tank, and a screw cap is threadedly connected to the top end of the water supply pipe.

[0017] As a further optimization of the present invention, the exhaust structure includes an exhaust pipe fixedly connected to the top wall of the water tank, a three-way flow valve installed on the middle section of the exhaust pipe, a moisture pipe connected to the three-way flow valve, and the end of the moisture pipe away from the three-way flow valve communicating with the heating chamber.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The insulation box is equipped with temperature and humidity sensors connected to the controller, which can monitor the temperature and humidity inside the insulation box in real time. During the test, the user can control the flow rate of hot air delivered into the insulation box by the air pump and the flow rate of moisture delivered into the insulation box by the moisture pipe through the controller. In conjunction with a resistance tester, the electrical variable of the resistor can be tested under any temperature and humidity conditions. The temperature and humidity inside the insulation box can also be set to superimpose the resistance test, which greatly improves the accuracy of the resistance electrical variable test results.

[0020] 2. The water tank is equipped with copper pipes in a spiral or S-shape. The hot air discharged from the exhaust chamber first enters the copper pipes. As the hot air is transported along the copper pipes, it can exchange heat with the clean water in the water tank, thereby generating humid hot air in the water tank. There is no need to use external energy to heat the clean water, which is more energy-saving and environmentally friendly.

[0021] 3. One end of the rotating tube is connected to the fan blade via a connecting shaft. A duct is fitted around the fan blade, with one end fixed to the outer wall of the insulation box. The air discharged through the copper tube is then transported into the duct along the corrugated pipe. When the air is discharged from the duct, it will drive the fan blade to rotate, thereby driving the rotating tube to rotate synchronously. This ensures that the hot air discharged through the nozzle is evenly distributed in the insulation box, minimizing the problem of uneven temperature inside the insulation box.

[0022] 4. The resistor is clamped onto the rotating base. The two ends of the rotating base are rotatably connected to the inner wall of the insulation box through insulating shafts. The connecting shaft and the insulating shaft below it are connected by a synchronous pulley and synchronous belt drive. Therefore, when the fan blade rotates and drives the rotating tube to rotate, it will also drive the resistor clamped onto the rotating base to rotate synchronously. This is to prevent the high-temperature gas ejected from the nozzle from blowing directly on one side of the resistor, which would cause uneven heating of the resistor and affect the accuracy of the test results.

[0023] 5. The hot air discharged from the exhaust chamber into the heat exchange chamber with the clean water in the water tank through the copper pipes and then its temperature drops. This helps to avoid the hot air directly acting on the fan blades, which could easily cause damage to the fan blades over time. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall rear structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall front structure of the present invention;

[0026] Figure 3 This is the present invention. Figure 2 Enlarged view of a close-up detail at point A in the middle;

[0027] Figure 4 This is the present invention. Figure 1 A schematic diagram of the cross-sectional structure;

[0028] Figure 5 This is a schematic diagram of the connection structure of the partition, base and heating wire of the present invention;

[0029] Figure 6 This is a schematic diagram of the installation structure of the sealing plate of the present invention;

[0030] Figure 7 This is a schematic diagram of the transmission structure of the rotating tube and rotating seat of the present invention;

[0031] Figure 8 This is the present invention. Figure 7 Enlarged view of a detail at point B in the middle.

[0032] In the diagram: 1. Base; 2. Partition plate; 3. Exhaust chamber; 4. Heating chamber; 5. Heating wire; 6. Air extraction port; 7. Sealing plate; 8. Through hole; 9. Insulation box; 10. Rotary tube; 11. Spray nozzle; 12. Connecting shaft; 13. Connector; 14. Air pump; 15. Air supply pipe; 16. Rotating seat; 17. Elastic electrode; 18. Conductive rod; 19. Insulating shaft; 20. Conductive ring; 21. Synchronous pulley; 22. Synchronous belt; 23. Bracket; 24. Water tank; 25. Copper pipe; 26. Corrugated pipe; 27. Fan blade; 28. Air duct; 29. ​​Water supply pipe; 30. Screw cap; 31. Exhaust pipe; 32. Three-way flow valve; 33. Moisture pipe; 34. Temperature sensor; 35. Humidity sensor; 36. Controller; 37. Resistance tester; 38. Drain pipe; 39. Valve. Detailed Implementation

[0033] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] Example: Figure 1 - Figure 8As shown, a performance testing device for resistor production includes a base 1. The base 1 is divided into an exhaust chamber 3 and a heating chamber 4 by a partition 2. An electric heating device is installed in the heating chamber 4. The electric heating device includes an electric heating wire 5 fixedly installed in the heating chamber 4. Multiple air extraction holes 6 are opened on the side walls of the heating chamber 4 on both sides of the electric heating wire 5. When the external air is subjected to negative pressure, it can enter the heating chamber 4 through the air extraction holes 6. When the electric heating wire 5 installed in the heating chamber 4 is energized, the air entering the heating chamber 4 can be heated.

[0035] The upper surface of the base 1 has an integrally formed annular flange. An insulation box 9 is set on the top of the base 1. The insulation box 9 is fixed to the base 1 by snapping together with the annular flange, which facilitates the installation and disassembly of the insulation box 9. At the same time, the annular flange seals the bottom periphery of the insulation box 9 after snapping together, which can greatly improve the insulation performance of the insulation box 9 and the sealing performance of the connection between the bottom opening of the insulation box 9 and the base 1.

[0036] A sealing plate 7 is fixedly connected to the top of the partition 2 to seal the top openings of the exhaust chamber 3 and the heating chamber 4. The sealing plate 7 above the exhaust chamber 3 has multiple matrix-distributed through holes 8. The heat preservation box 9 communicates with the exhaust chamber 3 through the through holes 8, and the exhaust chamber 3 cooperates with the through holes 8 to discharge excess gas from the heat preservation box 9.

[0037] The heat preservation box 9 is rotatably connected to a rotating pipe 10 with nozzles 11 on its periphery. The heated air is ejected through the nozzles 11 on the rotating pipe 10, and the high-temperature air is delivered into the heat preservation box 9. In conjunction with the heat preservation effect of the heat preservation box 9, the condition of the resistor when working in a high-temperature environment is simulated.

[0038] A gas supply structure for supplying hot air into the rotating tube 10 is installed on the base 1. The gas supply structure includes an air pump 14 fixedly installed on the outer wall of the base 1. The air pump 14 is connected to the interior of the heating chamber 4 at the air intake end. An air supply pipe 15 is connected to the exhaust end of the air pump 14. The end of the air supply pipe 15 away from the air pump 14 is connected to the rotating tube 10 through a connector 13. After the heating wire 5 is energized, the air pump 14 can be started to draw air. External air can pass through the air extraction hole 6 into the heating chamber 4. After being heated by the heating wire 5, it is transported to the rotating tube 10 along the air supply pipe 15 made of flexible and high-temperature resistant material. Finally, it is discharged through the nozzle 11 opened on the rotating tube 10 to heat the interior of the heat preservation box 9.

[0039] One end of the rotating tube 10 away from the gas supply structure is fixedly connected to one end of the connecting shaft 12. A clamping structure is provided below the rotating tube 10. Both ends of the clamping structure are rotatably connected to the inner wall of the insulation box 9 through the insulating shaft 19. The clamping structure includes a U-shaped rotating seat 16. Elastic electrodes 17 are fixedly connected to the adjacent sides of the two vertical sections of the rotating seat 16. The resistor is clamped and fixed between the two elastic electrodes 17 and electrically connected to the elastic electrodes 17. Conductive rods 18 are fixedly connected to the two elastic electrodes 17. The end of the conductive rod 18 away from the elastic electrodes 17 passes through the vertical section of the rotating seat 16 and is fixed to the insulating shaft 19. When testing the resistor, the resistor can be clamped between the two elastic electrodes 17. At this time, the resistor can be fixed relative to the rotating seat 16 through the elastic electrodes 17 and rotated and placed inside the insulation box 9 below the rotating tube 10 in cooperation with the insulating shaft 19.

[0040] A conductive ring 20 is fitted on the middle section of the conductive rod 18. The conductive ring 20 is rotatably connected to the conductive rod 18 and conducts electricity. A wire is connected to the outer wall of the conductive ring 20. The end of the wire away from the conductive ring 20 passes through the side wall of the heat preservation box 9 and is electrically connected to the resistance tester 37 set on the top of the heat preservation box 9. After the resistor is clamped and fixed, it can be connected to the resistance tester 37 through the elastic electrode 17, the conductive rod 18 and the conductive ring 20. The resistance tester 37 is used to detect the electrical change of the resistor.

[0041] The connecting shaft 12 is connected to the insulating shaft 19 below it by a transmission device. The transmission device includes a synchronous wheel 21 fixedly sleeved on the middle section of the connecting shaft 12 and the insulating shaft 19. The two synchronous wheels 21 are arranged vertically and are connected by a synchronous belt 22. When the connecting shaft 12 rotates, the resistor clamped on the rotating seat 16 can be driven to rotate synchronously through the transmission action of the synchronous wheel 21 and the synchronous belt 22.

[0042] A moisture generator is installed at the end of the base 1 furthest from the gas supply structure. The exhaust chamber 3 is connected to the inlet of the moisture generator via a pipe. The end of the connecting shaft 12 furthest from the rotating pipe 10 passes through the side wall of the insulation box 9 and is fitted with a fan blade 27. A duct 28, one end of which is fixed to the outer wall of the insulation box 9, is sleeved around the fan blade 27. The exhaust end of the moisture generator is connected to the duct 28 via a corrugated pipe 26, and the corrugated pipe 26 is connected to the end of the duct 28 closest to the insulation box 9. Because the rotating pipe 10 continuously supplies gas to the insulation box 9... The internal hot air is transported so that the gas inside the heat preservation box 9 can enter the exhaust chamber 3 through the through hole 8 on the sealing plate 7. After passing through the moisture generator, the gas is discharged into the air duct 28 along the corrugated pipe 26 and finally discharged through the opening end of the air duct 28. During the process of the air being discharged from the air duct 28, the airflow will drive the fan blade 27 to rotate. Under the transmission action of the connecting shaft 12, the rotating pipe 10 will rotate. In conjunction with the rotation of the spray hole 11 on the side wall of the rotating pipe 10, the hot airflow heats the inside of the heat preservation box 9 more evenly.

[0043] Meanwhile, during the rotation of the connecting shaft 12, the resistor that is clamped on the rotating seat 16 can be driven to rotate through the cooperation of two synchronous pulleys 21, synchronous belt 22 and insulating shaft 19. This avoids the resistor's upper surface being directly blown by hot air, which would cause uneven heating of the resistor and affect the accuracy of the resistance tester 37's test results.

[0044] The moisture generator includes a water tank 24 fixed to the end of the base 1 via a bracket 23. A copper pipe 25 is installed inside the water tank 24. The copper pipe 25 is arranged in a spiral or S-shape inside the water tank 24, which can increase the contact surface between the copper pipe 25 and the clean water contained in the water tank 24, thereby improving the heating efficiency of the clean water. The exhaust chamber 3 is connected to the bottom end of the copper pipe 25 via a pipe. The top end of the copper pipe 25 is fixed to the corrugated pipe 26. The hot air in the heat preservation box 9 is discharged through the exhaust chamber 3 and first enters the copper pipe 25. Heat exchange occurs between the copper pipe 25 and the clean water contained in the water tank 24. On the one hand, hot steam is formed in the water tank 24. On the other hand, the heat exchange with the clean water can reduce the temperature of the air discharged from the copper pipe 25, thereby protecting the fan blades 27.

[0045] The copper pipe 25 is located at the lowest point inside the water tank 24 and is connected to the drain pipe 38. The bottom end of the drain pipe 38 passes through the water tank 24 and extends to the outside of the water tank 24. A valve 39 is installed on the free end of the drain pipe 38. When hot air is transmitted in the copper pipe 25 and exchanges heat with the clean water in the water tank 24 through the copper pipe 25, the moisture in the hot air will condense on the inner wall of the copper pipe 25 to form condensate. When there is too much condensate in the copper pipe 25 and it affects the flow of hot air, the valve 39 can be opened and the condensate can be drained through the drain pipe 38.

[0046] A water supply pipe 29 is fixedly installed on the top wall of the water tank 24. A screw cap 30 is threadedly connected to the top of the water supply pipe 29. The water supply pipe 29 is used to replenish clean water into the water tank 24. The screw cap 30 is used to seal the opening at the top of the water supply pipe 29 after water replenishment, so as to avoid external impurities falling into the water tank 24 and contaminating the clean water contained in the water tank 24.

[0047] The moisture generator is also connected to an exhaust structure for supplying moisture into the insulation box 9. The exhaust structure includes an exhaust pipe 31 fixedly connected to the top wall of the water tank 24. A three-way flow valve 32 is installed on the middle section of the exhaust pipe 31. A moisture pipe 33 is connected to the three-way flow valve 32. The end of the moisture pipe 33 away from the three-way flow valve 32 is connected to the heating chamber 4. When it is necessary to adjust the humidity in the insulation box 9, the three-way flow valve 32 can be opened. The steam generated in the water tank 24 after being heated by the hot airflow can be delivered to the insulation box 9 along the moisture pipe 33 at a set flow rate, thereby adjusting the humidity in the insulation box 9 and achieving the purpose of testing the electrical variables of the resistor under different humidity conditions.

[0048] A temperature sensor 34 and a humidity sensor 35 are installed on one side of the insulation box 9, and a controller 36 is installed on the other side of the insulation box 9. The controller 36 is a programmable logic controller (PLC). The temperature sensor 34, humidity sensor 35, air pump 14, and three-way flow valve 32 are all connected to the controller 36. The temperature sensor 34 and humidity sensor 35 are used to detect the temperature and humidity data inside the insulation box 9 and transmit them to the controller 36 in real time. This allows the controller 36 to control the flow rate of hot air delivered by the air pump 14 into the rotary pipe 10 and the flow rate of moisture delivered by the three-way flow valve 32 into the moisture pipe 33, thereby achieving automatic control of the temperature and humidity inside the insulation box 9. This allows users to use a resistance tester 37 to test the electrical variables of resistors under different temperature and humidity conditions. The controller 36 can also control the precise temperature and humidity inside the insulation box 9 to detect the electrical variables of resistors under specific temperature and humidity conditions, greatly improving the accuracy of the test results.

[0049] It should be noted that when using it, first pull out the heat preservation box 9 upwards, and then snap the resistor to be tested between the two elastic electrodes 17 installed on the rotating seat 16. Since the elastic electrode 17 is connected to the resistance tester 37 through the conductive rod 18 and the wire connected to the conductive ring 20, the resistance tester 37 can detect the electrical change of the resistor under normal temperature conditions.

[0050] When it is necessary to detect the electrical change of the resistor at different temperatures, the heating wire 5 installed in the heating chamber 4 can be energized to heat the air, and then the air pump 14 can be started to pump the heated air into the insulation box 9 through the air supply pipe 15. Since the side wall of the insulation box 9 is equipped with a temperature sensor 34 that is electrically connected to the controller 36, the temperature sensor 34 can transmit the temperature information in the insulation box 9 to the controller 36 in real time and display it on the display screen set on the controller 36, so that the user can detect the electrical change of the resistor under different temperature environments through the resistance tester 37.

[0051] After entering the insulation box 9, the hot air is pushed by the subsequent air and enters the exhaust chamber 3 through the through hole 8 on the sealing plate 7. After passing through the moisture generator, the airflow enters the air duct 28 through the corrugated pipe 26. When the air is discharged from the opening end of the air duct 28, the airflow will blow the fan blade 27 to rotate, thereby driving the rotating pipe 10 to rotate inside the insulation box 9. This disperses the hot airflow discharged through the nozzle 11 on the rotating pipe 10, achieving uniform heating inside the insulation box 9 and avoiding the problem that uneven temperature inside the insulation box 9 will affect the accuracy of the subsequent resistance variable test results.

[0052] Meanwhile, synchronous pulleys 21 are fixedly sleeved on the insulating shaft 19 connected to the rotating seat 16 and the connecting shaft 12 above it. The two synchronous pulleys 21 are connected by a synchronous belt 22. When the connecting shaft 12 drives the rotating tube 10 to rotate, it can also drive the resistor clamped on the rotating seat 16 to rotate through the synchronous belt 22 and the synchronous pulley 21, so as to prevent the air ejected from the nozzle 11 from blowing directly on the resistor, resulting in uneven heating of the resistor.

[0053] After being discharged from the exhaust chamber 3, the hot air first enters the copper pipe 25 installed inside the water tank 24. As the hot air moves within the copper pipe 25, it exchanges heat with the clean water in the water tank 24, thereby heating the water in the water tank 24 and generating moisture. When it is necessary to detect the electrical change of the resistor under different humidity conditions, the three-way flow valve 32 can be opened to allow the moisture to be transported to the insulation box 9 along the moisture pipe 33 to adjust the humidity inside the insulation box 9. With the data transmission of the humidity sensor 35, the user can detect the electrical change of the resistor under different humidity environments through the resistance tester 37.

[0054] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A performance testing device for resistor production, comprising a base (1), characterized in that: The base (1) is divided into an exhaust chamber (3) and a heating chamber (4) by a partition (2). An electric heating device is installed in the heating chamber (4). A heat preservation box (9) is detachably connected to the top of the base (1). A rotating pipe (10) with spray holes (11) on its periphery is rotatably connected inside the heat preservation box (9). A gas supply structure for supplying hot gas to the rotating pipe (10) is installed on the base (1). One end of the rotating pipe (10) is fixedly connected to one end of a connecting shaft (12). The other end of the connecting shaft (12) rotatably passes through the side wall of the heat preservation box (9) and is equipped with a fan blade (27). A clamping structure is provided below the rotating pipe (10). Both ends of the clamping structure are rotatably connected to the inner wall of the heat preservation box (9) through an insulating shaft (19). The connecting shaft (12) is connected to the insulating shaft (19) below it through a transmission device. A moisture generator is installed at the end of the base (1) away from the gas supply structure. The exhaust chamber (3) is connected to the air inlet of the moisture generator through a pipe. A duct (28) with one end fixed to the outer wall of the insulation box (9) is sleeved around the fan blade (27). The exhaust end of the moisture generator is connected to the duct (28) through a corrugated pipe (26). An exhaust structure for supplying moisture to the insulation box (9) is also connected to the moisture generator. A temperature sensor (34) and a humidity sensor (35) are installed on one side of the insulated box (9), a controller (36) is installed on the other side of the insulated box (9), and a resistance tester (37) is fixedly connected to the top of the insulated box (9).

2. The performance testing device for resistor production according to claim 1, characterized in that: The electric heating device includes an electric heating wire (5) fixedly installed in the heating chamber (4), and multiple air extraction holes (6) are provided on the side walls of the heating chamber (4) on both sides of the electric heating wire (5).

3. The performance testing device for resistor production according to claim 1, characterized in that: The top of the partition (2) is fixedly connected to a sealing plate (7) for sealing the top openings of the exhaust chamber (3) and the heating chamber (4). The sealing plate (7) above the exhaust chamber (3) has multiple matrix-distributed through holes (8). The heat preservation box (9) communicates with the exhaust chamber (3) through the through holes (8).

4. The performance testing device for resistor production according to claim 1, characterized in that: The gas supply structure includes an air pump (14) fixedly installed on the outer wall of the base (1). The air pump (14) has its suction end connected to the interior of the heating chamber (4). An air supply pipe (15) is connected to the exhaust end of the air pump (14). The end of the air supply pipe (15) away from the air pump (14) is connected to the rotating pipe (10) through a connector (13).

5. The performance testing device for resistor production according to claim 1, characterized in that: The clamping structure includes a U-shaped rotating seat (16), on which elastic electrodes (17) are fixedly connected to adjacent sides of two vertical sections. A resistor is clamped and fixed between the two elastic electrodes (17) and electrically connected to the elastic electrodes (17). A conductive rod (18) is fixedly connected to each of the two elastic electrodes (17). One end of the conductive rod (18) away from the elastic electrode (17) passes through the vertical section of the rotating seat (16) and is fixed to the insulating shaft (19).

6. The performance testing device for resistor production according to claim 5, characterized in that: A conductive ring (20) is fitted on the middle section of the conductive rod (18). The conductive ring (20) is rotatably connected to the conductive rod (18). A wire is connected to the outer wall of the conductive ring (20). One end of the wire away from the conductive ring (20) passes through the side wall of the heat preservation box (9) and is electrically connected to the resistance tester (37).

7. The performance testing device for resistor production according to claim 1, characterized in that: The transmission device includes a synchronous pulley (21) fixedly sleeved on the middle section of the connecting shaft (12) and the insulating shaft (19). The two synchronous pulleys (21) are arranged vertically and are connected by a synchronous belt (22).

8. The performance testing device for resistor production according to claim 2, characterized in that: The moisture generating device includes a water tank (24) fixed to the end of the base (1) by a bracket (23), a copper pipe (25) is provided in the water tank (24), the exhaust chamber (3) is connected to the bottom end of the copper pipe (25) through a pipe, and the top end of the copper pipe (25) is fixed to the corrugated pipe (26).

9. The performance testing device for resistor production according to claim 8, characterized in that: A water supply pipe (29) is fixedly installed on the top wall of the water tank (24), and a screw cap (30) is threadedly connected to the top of the water supply pipe (29).

10. A performance testing device for resistor production according to claim 9, characterized in that: The exhaust structure includes an exhaust pipe (31) fixedly connected to the top wall of the water tank (24), a three-way flow valve (32) installed on the exhaust pipe (31), a moisture pipe (33) connected to the three-way flow valve (32), and the end of the moisture pipe (33) away from the three-way flow valve (32) communicating with the heating chamber (4).

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