A high and low temperature thermal experiment box for motor detection

Abstract

The utility model provides a kind of high-low temperature thermal test chamber for motor detection belongs to electrical engineering technical field, including box, the detection component of high-low temperature detection of motor is arranged at the top of box, the inside of box is provided with the fixed component of the motor of different sizes is fixed.The utility model is equipped with the detection component, fan is sent airflow to fixed frame by air outlet pipe, resistance wire is heated by electrification, airflow in air outlet pipe is heated, start condenser tube to cool the air in fixed frame, high-low temperature airflow is evenly and dispersedly sent to box by air outlet frame, temperature sensor detects the temperature in box in real time, and temperature information is passed to controller, controller integrates temperature data, and temperature data is passed to display screen and is shown, convenient for operator to understand the temperature state in box in real time, guarantee the accuracy of motor detection.

Description

Technical Field

[0001] This utility model relates to the field of electrical engineering technology, and more specifically, to a high and low temperature thermal test chamber for motor testing. Background Technology

[0002] In the field of motor manufacturing and application, the performance and quality testing of motors is a crucial step in ensuring their reliable operation. Motors face various complex environmental temperature conditions in different usage scenarios, ranging from the low temperatures of polar regions to the high temperatures near industrial furnaces. Therefore, to accurately evaluate the performance of motors under various extreme temperature environments, such as starting performance, operational stability, efficiency, and insulation performance, high and low temperature thermal test chambers have become indispensable equipment in the motor testing process. However, traditional high and low temperature thermal test chambers for motor testing still have the following shortcomings: Traditional high and low temperature thermal test chambers for motor testing typically regulate temperature by directly blowing cold or hot air into the chamber. Because the cold or hot air blows directly onto the motor, the area directly exposed to the airflow experiences rapid and drastic temperature changes, while other parts of the motor, either obstructed by the airflow or further from the air vent, experience relatively slower temperature changes. This results in significant temperature differences between different parts of the motor, causing the test data to deviate from actual conditions and failing to provide reliable data for motor research and improvement. Therefore, a new high and low temperature thermal test chamber for motor testing is proposed. Utility Model Content

[0003] The purpose of this invention is to address the problem that existing high and low temperature thermal test chambers for motor testing typically regulate temperature by directly blowing cold or hot air into the chamber. Because the cold or hot air blows directly onto the motor, the temperature of the area directly exposed to the airflow changes rapidly and drastically, while other parts of the motor, due to obstruction of airflow or distance from the air vent, experience relatively slower temperature changes. This results in significant temperature differences between different parts of the motor, causing the test data to be inconsistent with actual conditions and failing to provide a reliable basis for motor research and improvement. This invention provides a high and low temperature thermal test chamber for motor testing to solve the problems mentioned in the background.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: The present invention is as follows: a high and low temperature thermal test chamber for motor testing, comprising a chamber body, a testing component for high and low temperature testing of the motor being provided on the top of the chamber body, and a fixing component for fixing motors of different sizes being provided inside the chamber body; The detection assembly includes a fixed frame fixedly connected to the top of the housing, a fan bolted to the top of the fixed frame, an air outlet pipe at the output end of the fan, a resistance wire on the inner wall of the air outlet pipe, multiple condenser pipes on the inner wall of the fixed frame, a protective cover fixedly connected to the inner wall of the fixed frame, the condenser pipes located on the inner wall of the protective cover, multiple air outlet frames fixedly connected to the bottom of the fixed frame, all located on the inner wall of the housing, a placement rack fixedly connected to the bottom inner wall of the housing, a temperature sensor on the inner wall of the housing, a controller on the top of the fixed frame, and a display screen on one side of the housing.

[0005] As a preferred technical solution of this utility model, the fixing component includes a connecting frame fixedly connected to the bottom of the box, a servo motor is bolted to one side of the connecting frame, a lead screw is provided at the output end of the servo motor, two fixing plates are threaded to the outer wall of the lead screw, a crossbar is fixedly connected to the inner wall of the connecting frame, and a push plate is fixedly connected to one side of each of the two fixing plates.

[0006] As a preferred technical solution of this utility model, a return air frame is fixedly connected to one side of the box, a return air duct is fixedly connected to one side of the return air frame, an exhaust fan is provided on the side of the return air duct away from the return air frame, a flexible hose is provided at the output end of the exhaust fan, and the end of the flexible hose away from the exhaust fan is fixedly connected to one side of the fixed frame, and the flexible hose is connected to the interior of the fixed frame.

[0007] As a preferred technical solution of this utility model, a bracket is fixedly connected to the top of the fixed frame, an electric push rod is provided on the inner top wall of the bracket, an extension column is provided at the output end of the electric push rod, a scraper is fixedly connected to the bottom of the extension column, and the scraper is located on the outer wall of the condenser tube.

[0008] As a preferred technical solution of this utility model, a protective cover is fixedly connected to the top of the fixed frame, and a filter screen is provided on the top of the protective cover. The protective cover is located on the outer wall of the fan.

[0009] As a preferred technical solution of this utility model, plastic pads are provided on the opposing sides of the two push plates, and multiple fixing grooves are provided on the opposing sides of the two plastic pads.

[0010] As a preferred technical solution of this utility model, an alarm light is provided on one side of the box, and the alarm light is electrically connected to the controller.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Through the set detection components, the fan delivers airflow into the fixed frame through the air outlet duct. The resistance wire is energized and heats up, heating the airflow in the air outlet duct. The condenser is activated to cool the air in the fixed frame. The high and low temperature airflow is evenly and dispersedly delivered into the chamber through the air outlet frame. The temperature sensor detects the temperature inside the chamber in real time and transmits the temperature information to the controller. The controller integrates the temperature data and transmits it to the display screen for display, allowing operators to understand the temperature status inside the chamber in real time and ensuring the accuracy of motor detection.

[0012] 2. By setting up a fixing component, a stable fixing effect is achieved for motors of different sizes. The servo motor drives the lead screw to rotate, which in turn drives the push plate on the fixing plate on the lead screw to move in opposite or opposite directions, thereby achieving a stable clamping and fixing effect for motors of different sizes. The crossbar provides stable support for the fixing plate, greatly improving the stability of motor detection. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of a high and low temperature thermal test chamber for motor testing provided by this utility model; Figure 2 A front cross-sectional view of a high and low temperature thermal test chamber for motor testing provided by this utility model; Figure 3 A schematic diagram of the left-side cross-sectional structure of a high and low temperature thermal test chamber for motor testing provided by this utility model; Figure 4 This utility model provides a high and low temperature thermal test chamber for motor testing. Figure 2 Enlarged view of point A in the middle; Figure 5 This utility model provides a cross-sectional structural diagram of the support and electric push rod in a high and low temperature thermal test chamber for motor testing.

[0014] The diagram shows: 1. Housing; 2. Detection component; 3. Fixing component; 201. Fixing frame; 202. Fan; 203. Air outlet duct; 204. Resistance wire; 205. Condenser pipe; 206. Protective cover; 207. Air outlet frame; 208. Placement rack; 209. Temperature sensor; 210. Controller; 211. Display screen; 301. Connecting frame; 302. Servo motor; 303. Lead screw; 304. Fixing plate; 305. Crossbar; 306. Push plate; 4. Return air frame; 5. Return air duct; 6. Exhaust fan; 7. Hose; 8. Bracket; 9. Electric push rod; 10. Extension column; 11. Scraper; 12. Protective cover; 13. Filter screen; 14. Plastic pad; 15. Fixing groove; 16. Alarm light. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0016] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] like Figure 1 and Figure 2 As shown, this embodiment proposes a high and low temperature thermal test chamber for motor testing, including a chamber body 1. A testing component 2 for high and low temperature testing of the motor is provided on the top of the chamber body 1, and a fixing component 3 for fixing motors of different sizes is provided inside the chamber body 1. like Figure 2 - Figure 4As shown, the detection component 2 includes a fixed frame 201 fixedly connected to the top of the housing 1. A fan 202 is bolted to the top of the fixed frame 201. An air outlet duct 203 is provided at the output end of the fan 202. The air outlet duct 203 communicates with the interior of the fixed frame 201 through a hole at the top of the fixed frame 201. A resistance wire 204 is provided on the inner wall of the air outlet duct 203. The resistance wire 204 heats up when energized, heating the airflow blown out by the fan 202. Multiple condenser pipes 205 are provided on the inner wall of the fixed frame 201. A protective cover 206 is fixedly connected to the inner wall of the fixed frame 201. The condenser pipes 205 are located on the inner wall of the protective cover 206. Activating the condenser pipes 205 cools the air inside the fixed frame 201. Multiple air outlet frames 207 are fixedly connected to the bottom of the fixed frame 201. All air outlet frames 207 are located within the housing 1. The inner wall has air outlet frames 207 distributed at least at the four corners of the inner wall of the box 1. The bottom wall of the box 1 is fixedly connected to a placement rack 208, which is used to place the motor. The air outlet frames 207 in the box 1 deliver high and low temperature gases evenly and dispersedly into the box 1, avoiding local overheating or underheating of the motor surface on the placement rack 208. The inner wall of the box 1 is equipped with a temperature sensor 209. The top of the fixed frame 201 is equipped with a controller 210. The side of the box 1 is equipped with a display screen 211. The temperature sensor 209 detects the temperature inside the box 1 in real time and transmits the temperature information to the controller 210. The controller 210 integrates the temperature data and transmits it to the display screen 211 for display. The fan 202, the resistance wire 204 and the condenser pipe 205 are all electrically connected to the controller 210.The motor to be tested is placed on the rack 208. When a high-temperature environment is required, the fan 202 starts, drawing in outside air and delivering it through the exhaust pipe 203. Simultaneously, the resistance wire 204 is energized and heats up, heating the air passing through the exhaust pipe 203. The heated air is then blown into the interior of the housing 1 in a relatively dispersed and even manner through the exhaust frames 207 distributed at the four corners of the inner wall of the housing 1. This allows the hot air to naturally diffuse and mix within the housing 1, ensuring that the motor is in a uniform high-temperature environment. When a low-temperature environment is required, the resistance wire 204 is deactivated. The power supply is turned on and the condenser 205 is activated to cool the air inside the fixed frame 201. The fan 202 is also activated, blowing the cooled air evenly into the chamber 1 through the air outlet frame 207. This gradually lowers the temperature inside the chamber and distributes it evenly, avoiding direct hot and cold air blowing that could cause the motor temperature to be too high or too low in some areas, affecting the accuracy of the motor test results. The temperature detector monitors the temperature changes inside the chamber 1 in real time and transmits the data to the controller 210. The controller 210 controls the working status of the fan 202, the resistance wire 204, and the condenser 205 based on the difference between the set temperature and the actual temperature, achieving precise temperature control. At the same time, the temperature information is integrated and transmitted to the display screen 211, which displays the temperature parameters inside the chamber 1 intuitively. This allows operators to understand the test status of the motor inside the chamber 1 in high and low temperature environments in real time, effectively improving the accuracy and stability of the motor test results.

[0020] like Figure 3As shown, the fixing assembly 3 includes a connecting frame 301 fixedly connected to the bottom of the housing 1. A servo motor 302 is bolted to one side of the connecting frame 301. A lead screw 303 is provided at the output end of the servo motor 302. Two fixing plates 304 are threadedly connected to the outer wall of the lead screw 303. The two fixing plates 304 are parallel and extend into the housing 1. The two fixing plates 304 are arranged facing each other. The space between the two fixing plates 304 is used to accommodate the motor. A crossbar 305 is fixedly connected to the inner wall of the connecting frame 301. The crossbar 305 is parallel to the lead screw and passes through the two fixing plates 304. The crossbar 305 is slidably connected to the fixed plate 304, which limits the movement of the fixed plate 304 to prevent it from rotating when the lead screw 303 rotates. This ensures that the fixed plate 304 can only move linearly along the axis of the lead screw 303, greatly improving the stability of motor detection. Push plates 306 are fixedly connected to the opposing sides of the two fixed plates 304. The servo motor 302 drives the lead screw 303 to rotate, thereby causing the fixed plates 304 to move in opposite directions on the lead screw 303, achieving stable clamping of motors of different sizes. The motor to be tested is placed on the placement rack 208. Then, the servo motor 302 is started, driving the lead screw 303 to rotate. The rotation of the lead screw 303 causes the fixed plates 304 to move in opposite directions along the axis of the lead screw 303. The movement of the fixed plates 304 causes the push plates 306 to move, thus achieving clamping or releasing of motors of different sizes.

[0021] like Figure 3 As shown, a return air frame 4 is fixedly connected to one side of the enclosure 1, and a return air duct 5 is fixedly connected to one side of the return air frame 4. An exhaust fan 6 is installed on the side of the return air duct 5 away from the return air frame 4. A flexible hose 7 is installed at the output end of the exhaust fan 6. The end of the flexible hose 7 away from the exhaust fan 6 is fixedly connected to one side of the fixed frame 201, and the flexible hose 7 is connected to the interior of the fixed frame 201. During the high and low temperature testing of the motor, the exhaust fan 6 is started, and the air inside the enclosure 1 is drawn back through the return air duct 5 and the return air frame 4. The high and low temperature gases are drawn and transported to the fixed frame 201 through the flexible hose 7, realizing the circulation of air inside the enclosure 1. This improves energy efficiency, helps maintain the temperature uniformity inside the enclosure 1, and reduces temperature fluctuations inside the enclosure 1.

[0022] like Figure 5As shown, a bracket 8 is fixedly connected to the top of the fixed frame 201. An electric push rod 9 is provided on the inner top wall of the bracket 8. An extension column 10 is provided at the output end of the electric push rod 9. The extension column 10 extends into the fixed frame 201. A scraper 11 is fixedly connected to the bottom of the extension column 10. The scraper 11 is located on the outer wall of the condenser tube 205. When the condenser tube 205 has been working for a long time, causing frost to condense on its surface, the electric push rod 9 is activated. The electric push rod 9 drives the scraper 11 on the extension column 10 to move up and down along the surface of the condenser tube 205, scraping away dust, dirt, frost, and other impurities from the surface of the condenser tube 205. This ensures the cooling effect of the condenser tube 205, improves the efficiency and stability of creating a low-temperature environment, and extends the service life of the condenser tube 205.

[0023] like Figure 5 As shown, a protective cover 12 is fixedly connected to the top of the fixed frame 201, and a filter screen 13 is provided on the top of the protective cover 12. The protective cover 12 is located on the outer wall of the fan 202. When the fan 202 is working, the protective cover 12 provides stable protection for the fan 202, preventing external objects from colliding and damaging the fan 202. The filter screen 13 can block dust, particles and other impurities in the air, ensuring that the air entering the fan 202 is clean and reducing the impact of dust on the motor.

[0024] like Figure 3 As shown, plastic pads 14 are provided on the opposing sides of the two push plates 306, and multiple fixing grooves 15 are formed on the opposing sides of the two plastic pads 14. When the push plate 306 fixes the motor, the plastic pads 14 contact the motor surface and flexibly clamp the motor surface. At the same time, the fixing grooves 15 can increase the friction with the motor surface, prevent the push plate 306 from scratching the motor surface, and improve the stability of the push plate 306 in fixing the motor.

[0025] like Figure 2 As shown, an alarm light 16 is installed on one side of the enclosure 1, and the alarm light 16 is electrically connected to the controller 210. When the temperature sensor 209 detects that the temperature inside the enclosure 1 exceeds the set safe range, it transmits a signal to the controller 210, which then controls the alarm light 16 to light up, issuing an alarm signal to remind the operator to handle the situation in time, avoiding damage to the motor due to excessively high or low temperatures, and improving the safety of the motor detection process.

[0026] Specifically, when using this high and low temperature thermal test chamber for motor testing: place the motor to be tested on the placement rack 208, then start the servo motor 302. The servo motor 302 drives the lead screw 303 to rotate. The rotation of the lead screw 303 causes the fixing plate 304 to move in opposite directions along the axial direction of the lead screw 303. The movement of the fixing plate 304 causes the push plate 306 to move, thereby achieving the clamping or loosening of motors of different sizes (e.g., ...). Figure 3(As shown in the diagram) When a high-temperature environment is required, the fan 202 starts, drawing in outside air and delivering it through the air outlet duct 203. Simultaneously, the resistance wire 204 is energized and heats up, heating the air passing through the air outlet duct 203. The heated air is then dispersed and evenly blown into the interior of the housing 1 through the air outlet frames 207 distributed at the four corners of the inner wall of the housing 1, allowing the hot air to naturally diffuse and mix within the housing 1, thus ensuring that the entire motor is in a uniform high-temperature environment. When a low-temperature environment is required, the resistance wire 204 is deactivated. The power supply activates the condenser 205, cooling the air inside the fixed frame 201. The fan 202 also starts, blowing the cooled air evenly into the housing 1 through the air outlet 207, gradually lowering and uniformly distributing the temperature inside the housing. This avoids direct hot or cold air blowing, which could cause localized overheating or underheating of the motor. A temperature detector monitors the temperature changes inside the housing 1 in real time and transmits the data to the controller 210. The controller 210 controls the operation of the fan 202, resistance wire 204, and condenser 205 based on the difference between the set temperature and the actual temperature. Simultaneously, it integrates the temperature information and transmits it to the display screen 211, which visually displays the temperature parameters inside the housing 1, allowing operators to easily monitor the motor's status under high and low temperature conditions (e.g., temperature changes). Figures 2-4 (As shown in the figure); effectively improving the accuracy and stability of motor testing results.

[0027] All technical features in this embodiment can be freely combined according to actual needs.

[0028] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A high and low temperature thermal test chamber for motor testing, comprising a chamber body (1), characterized in that, The top of the housing (1) is provided with a detection component (2) for high and low temperature detection of the motor, and the inside of the housing (1) is provided with a fixing component (3) for fixing motors of different sizes. The detection component (2) includes a fixed frame (201) fixedly connected to the top of the housing (1). A fan (202) is bolted to the top of the fixed frame (201). An air outlet pipe (203) is provided at the output end of the fan (202). A resistance wire (204) is provided on the inner wall of the air outlet pipe (203). A plurality of condenser pipes (205) are provided on the inner wall of the fixed frame (201). A protective cover (206) is fixedly connected to the inner wall of the fixed frame (201). (205) Located on the inner wall of the protective cover (206), the bottom of the fixed frame (201) is fixedly connected to multiple air outlet frames (207), the air outlet frames (207) are all located on the inner wall of the box (1), the bottom wall of the box (1) is fixedly connected to a placement rack (208), the inner wall of the box (1) is provided with a temperature sensor (209), the top of the fixed frame (201) is provided with a controller (210), and a display screen (211) is provided on one side of the box (1).

2. The high and low temperature thermal test chamber for motor testing according to claim 1, characterized in that, The fixing component (3) includes a connecting frame (301) fixedly connected to the bottom of the housing (1). A servo motor (302) is bolted to one side of the connecting frame (301). A lead screw (303) is provided at the output end of the servo motor (302). Two fixing plates (304) are threaded to the outer wall of the lead screw (303). A crossbar (305) is fixedly connected to the inner wall of the connecting frame (301). A push plate (306) is fixedly connected to one side of each of the two fixing plates (304).

3. The high and low temperature thermal test chamber for motor testing according to claim 1, characterized in that, A return air frame (4) is fixedly connected to one side of the housing (1), and a return air pipe (5) is fixedly connected to one side of the return air frame (4). An exhaust fan (6) is provided on the side of the return air pipe (5) away from the return air frame (4). A flexible hose (7) is provided at the output end of the exhaust fan (6). The end of the flexible hose (7) away from the exhaust fan (6) is fixedly connected to one side of the fixed frame (201). The flexible hose (7) is connected to the interior of the fixed frame (201).

4. The high and low temperature thermal test chamber for motor testing according to claim 1, characterized in that, The top of the fixed frame (201) is fixedly connected to a bracket (8), and an electric push rod (9) is provided on the inner top wall of the bracket (8). An extension column (10) is provided at the output end of the electric push rod (9), and a scraper (11) is fixedly connected to the bottom of the extension column (10). The scraper (11) is located on the outer wall of the condenser tube (205).

5. The high and low temperature thermal test chamber for motor testing according to claim 1, characterized in that, A protective cover (12) is fixedly connected to the top of the fixed frame (201), and a filter screen (13) is provided on the top of the protective cover (12). The protective cover (12) is located on the outer wall of the fan (202).

6. The high and low temperature thermal test chamber for motor testing according to claim 2, characterized in that, Both of the push plates (306) are provided with plastic pads (14) on their opposing sides, and both of the plastic pads (14) are provided with multiple fixing grooves (15) on their opposing sides.

7. The high and low temperature thermal test chamber for motor testing according to claim 1, characterized in that, An alarm light (16) is provided on one side of the enclosure (1), and the alarm light (16) is electrically connected to the controller (210).

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