Tool for testing motor

Abstract

The utility model discloses a tool for testing a motor, which comprises a test box, and a simulation mechanism and an installation mechanism are arranged in the test box. The simulation mechanism comprises a fan and a cold collection shell, the cold collection shell is fixed to the inner wall of the test box, the surface of the cold collection shell is communicated with a plurality of air outlet pipes, a first liquid box is fixed to the surface of the test box, a semiconductor refrigerator is fixed to the surface of the first liquid box, and the top of the first liquid box is communicated with a first conveying pump; the surface of the first delivery pump is communicated with a cold guide pipe, a cooler is installed on the surface of the test box, an electric heating plate is fixed to the inner wall of the test box, a second delivery pump is arranged on one side of the test box, and the surface of the second delivery pump is communicated with a second liquid box. According to the utility model, the motor operation environment can be cooled so as to simulate the low-temperature area environment, and the problem that the low-temperature environment cannot be simulated when the current motor load tool is used is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor production, in particular to a tooling for motor testing. Background Technique

[0002] A motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. Its main function is to generate a driving torque and serve as a power source for electrical appliances or various machines. Its main function is to convert electrical energy into mechanical energy. During the manufacturing process of motors, it is usually necessary to conduct motor load tests on the assembled motors to ensure the quality of the motors leaving the factory.

[0003] After retrieving the Chinese patent with the publication number CN217561671U, a motor load test tooling is disclosed. The utility model includes a base, a test box body, a flip cover and a motor placement plate. The test box body is movably connected to the base, the motor placement plate is connected inside the test box body, and the flip cover is hinged outside the test box body. The motor load test tooling further includes: a limiting component, which is arranged on the test box body and the motor placement plate and is used to limit the position of the motor to be tested placed on the motor placement plate; a temperature control component, which is arranged on the test box body and is used to adjust the temperature inside the test box body. By setting a temperature sensor, a temperature display screen and an electric heating element, the staff can conveniently control the temperature inside the test box body so that the motor to be tested can conduct load tests in environments with different temperatures, thereby improving the functionality of the load test device.

[0004] However, the following problems still exist in this patent: The device heats up the test box body through an electric heating element to simulate the motor load conditions at different temperatures. However, since this tooling does not have a cooling function, it cannot conduct low-temperature tests, and it is impossible to accurately evaluate the actual performance of the motor in cold climates, which may lead to problems in the application of the product in cold regions. Moreover, without undergoing low-temperature tests, defects in the motor design, such as the selection of low-temperature sensitive materials and insufficient thermal management design, may not be discovered and corrected in time, affecting the overall quality and reliability of the product. Content of the Utility Model

[0005] The purpose of the utility model is to provide a tooling for motor testing, which has the advantage of being able to cool down the operating environment of the motor to simulate the environment in low-temperature regions, and solves the problem that the current motor load tooling cannot simulate a low-temperature environment when in use.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A tooling for motor testing, including a test box, and a simulation mechanism and an installation mechanism are arranged inside the test box;

[0007] The simulation mechanism includes a blower and a cold collection shell. The cold collection shell is fixed to the inner wall of the test box. A plurality of air outlet pipes are communicated with the surface of the cold collection shell. A first liquid tank is fixed to the surface of the test box. A semiconductor refrigerator is fixed to the surface of the first liquid tank. A first delivery pump is communicated with the top of the first liquid tank. A cold conduction pipe is communicated with the surface of the first delivery pump. A cooler is installed on the surface of the test box. An electric heating plate is fixed to the inner wall of the test box. A second delivery pump is arranged on one side of the test box. A second liquid tank is communicated with the surface of the second delivery pump. An atomizer is fixed to the top of the inner wall of the test box.

[0008] As a preferred tooling for motor testing of the present utility model, the installation mechanism includes a mounting plate. A connecting frame is fixed to the top of the mounting plate. A plurality of openings for mating with the motor installation are formed on the surface of the connecting frame. A vibration motor and a plurality of damping springs are fixed to the bottom of the mounting plate. The bottom of the damping spring is fixedly connected to the bottom of the inner wall of the test box.

[0009] As a preferred tooling for motor testing of the present utility model, the air outlet pipe is arranged in a funnel-shaped structure.

[0010] As a preferred tooling for motor testing of the present utility model, the cooler is composed of a compressor, a condenser, an expansion valve, and an evaporator, wherein the evaporator is located inside the test box.

[0011] As a preferred tooling for motor testing of the present utility model, an air pump is fixed to the surface of the test box. A valve is installed at the pipe communicated with the surface of the blower. A pressure gauge is installed on the surface of the test box. A closing door is hinged to the surface of the test box, and a sealing ring is fixed to the surface of the closing door.

[0012] As a preferred tooling for motor testing of the present utility model, a temperature and humidity sensor is fixed to the inner wall of the test box. A controller is fixed to the surface of the test box.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] With the setting of the simulation mechanism, when a low-temperature environment simulation is required for the motor load test, the cooler is started. The cooler can perform a preliminary temperature reduction treatment on the inside of the test chamber. At this time, the semiconductor refrigerator is started, so that the coolant in the first liquid tank can be refrigerated. Then, the first delivery pump can introduce the coolant in the first liquid tank into the cold conduction pipe, so that the cold conduction pipe can be in a low-temperature state, and the coolant in the cold conduction pipe can also flow back into the first liquid tank to realize the coolant circulation. When the fan is started, the air flow will be able to blow onto the surface of the cold conduction pipe. At this time, the air flow will absorb the low temperature on the surface of the cold conduction pipe and then be ejected from the air outlet pipe. The ejected low-temperature air flow can further reduce the temperature inside the test chamber, achieving a rapid cooling effect on the inside of the test chamber, so that the test chamber can be in a low-temperature environment for load testing. The start of the electric heating plate can increase the temperature inside the test chamber. When the second delivery pump is started, it can input the water flow in the second liquid tank into the atomizer through the pipeline. The atomizer can spray water mist, and these water mists will gradually diffuse and mix into the air, increasing the relative humidity of the entire box body to meet various environmental requirements during motor testing. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 is a sectional three-dimensional structure schematic diagram of the present utility model;

[0017] Figure 3 is a sectional structure schematic diagram of the simulation mechanism in the present utility model;

[0018] Figure 4 is a partial sectional structure schematic diagram of the simulation mechanism in the present utility model;

[0019] Figure 5 is a structure schematic diagram of the installation mechanism in the present utility model.

[0020] In the figure: 1, test chamber; 2, simulation mechanism; 201, fan; 202, cold collection shell; 203, air outlet pipe; 204, first liquid tank; 205, semiconductor refrigerator; 206, first delivery pump; 207, cold conduction pipe; 208, cooler; 209, electric heating plate; 210, second delivery pump; 211, second liquid tank; 212, atomizer; 213, air pump; 214, pressure gauge; 215, temperature and humidity sensor; 3, installation mechanism; 301, installation plate; 302, connecting frame; 303, vibration motor; 304, damping spring; 4, controller. Detailed Embodiment

[0021] Please refer to Figures 1 - 5 , a tool for motor testing, including a test chamber 1, and a simulation mechanism 2 and an installation mechanism 3 are arranged inside the test chamber 1;

[0022] Inside the test chamber 1 is used to place the motor, the simulation mechanism 2 is used to simulate the working environment of the motor, and the installation mechanism 3 is used to install the motor and conduct vibration simulation.

[0023] The simulation mechanism 2 includes a fan 201 and a cold collection shell 202. The cold collection shell 202 is fixed to the inner wall of the test chamber 1. A plurality of air outlet pipes 203 are communicated with the surface of the cold collection shell 202. A first liquid tank 204 is fixed to the surface of the test chamber 1. A semiconductor refrigerator 205 is fixed to the surface of the first liquid tank 204. The first liquid tank 204 is filled with a coolant. A cooling structure is arranged on the surface of the semiconductor refrigerator 205. The surface of the fan 201 passes through the test chamber 1 to the inside of the cold collection shell 202 through a pipeline. A first delivery pump 206 is communicated with the top of the first liquid tank 204. A cold conduction pipe 207 is communicated with the surface of the first delivery pump 206. The surface of the cold conduction pipe 207 passes through the test chamber 1 to the inside of the cold collection shell 202. One end of the cold conduction pipe 207 is communicated with the top of the first liquid tank 204. A cooler 208 is installed on the surface of the test chamber 1. An electric heating plate 209 is fixed to the inner wall of the test chamber 1. A second delivery pump 210 is arranged on one side of the test chamber 1. A second liquid tank 211 is communicated with the surface of the second delivery pump 210. The second liquid tank 211 is filled with water. An atomizer 212 is fixed to the top of the inner wall of the test chamber 1. The surface of the second delivery pump 210 passes through the test chamber 1 through a pipeline and is communicated with the atomizer 212;

[0024] When a low-temperature environment simulation is required for the motor load test, the cooler 208 is started. The cooler 208 can perform a preliminary temperature reduction treatment on the inside of the test chamber 1. At this time, the semiconductor refrigerator 205 is started so that the coolant inside the first liquid tank 204 can be refrigerated. Then the first delivery pump 206 can introduce the coolant inside the first liquid tank 204 into the cold conduction pipe 207, so that the cold conduction pipe 207 can be in a low-temperature state, and the coolant inside the cold conduction pipe 207 can also flow back into the first liquid tank 204 to realize the coolant circulation. When the fan 201 is started, the air flow will be able to blow to the surface of the cold conduction pipe 207. At this time, the air flow will absorb the low temperature on the surface of the cold conduction pipe 207 and then be ejected from the air outlet pipe 203, and the ejected low-temperature air flow can further reduce the temperature inside the test chamber 1, realizing a rapid cooling effect on the inside of the test chamber 1, so that the test chamber 1 can be in a low-temperature environment for load testing. The start of the electric heating plate 209 can increase the temperature inside the test chamber 1. When the second delivery pump 210 is started, it can input the water inside the second liquid tank 211 into the atomizer 212 through a pipeline. The atomizer 212 can spray water mist, and these water mists will gradually diffuse and mix in the air to increase the relative humidity of the entire box body, so as to meet various environmental requirements during the motor test.

[0025] Further, the installation mechanism 3 includes an installation plate 301. A connecting frame 302 is fixed to the top of the installation plate 301. Multiple openings for motor installation are provided on the surface of the connecting frame 302. A vibration motor 303 and multiple damping springs 304 are fixed to the bottom of the installation plate 301. The bottom of the damping springs 304 is fixedly connected to the bottom inner wall of the test chamber 1;

[0026] The motor can be fixedly installed by bolts through the cooperation of the bottom of itself and the openings on the surface of the connecting frame 302. Then, the motor is connected to the test equipment to be loaded, such as a dynamometer. After that, the load test can be started. When the vibration motor 303 is started, the installation plate 301 will vibrate, and at the same time, the damping springs 304 will compress and rebound, so as to improve the vibration effect received by the installation plate 301, thereby simulating the working condition of the motor under the vibration state.

[0027] Further, the air outlet pipe 203 is arranged in a funnel-shaped structure;

[0028] When the air passes through the air outlet pipe 203 with a gradually decreasing cross-section, according to Bernoulli's principle, the flow rate will increase, which can make the air flow in the box faster and more powerfully, helping to improve the air exchange efficiency, which is especially beneficial for the internal refrigeration of the test chamber 1.

[0029] Further, the cooler 208 is composed of a compressor, a condenser, an expansion valve, and an evaporator, and the evaporator is located inside the test chamber 1;

[0030] The compressor is responsible for compressing the refrigerant gas. The high-temperature and high-pressure refrigerant gas is cooled by external air or cooling water in the condenser and condensed into a liquid state, releasing heat to the environment. When the liquid refrigerant passes through the expansion valve, the pressure drops suddenly, and part of the liquid evaporates, and the temperature also drops accordingly, preparing to enter the evaporator. The low-temperature and low-pressure refrigerant absorbs the heat of the indoor air and evaporates in the evaporator, so that the indoor air temperature drops, achieving the refrigeration effect. Through the above structure, the internal temperature of the test chamber 1 is initially reduced, thus meeting the temperature requirements during the motor test.

[0031] Further, an air pump 213 is fixed to the surface of the test chamber 1. A valve is installed at the connecting pipe on the surface of the fan 201. A pressure gauge 214 is installed on the surface of the test chamber 1. A closing door is hinged on the surface of the test chamber 1, and a sealing ring is fixed to the surface of the closing door;

[0032] The air pump 213 can inject air or extract air into the test chamber 1, thereby changing the internal air pressure situation of the test chamber 1, so as to simulate the working condition of the motor in different altitude environments. The setting of the valve at the pipe on the surface of the fan 201 can improve the overall tightness of the tooling. The setting of the closing door and the sealing ring further reduces the gas leakage situation during the detection process. The pressure gauge 214 can detect the internal air pressure of the test chamber 1.

[0033] Furthermore, a temperature and humidity sensor 215 is fixed to the inner wall of the test chamber 1, and a controller 4 is fixed to the surface of the test chamber 1. The controller 4 is electrically connected to the temperature and humidity sensor 215, the cooler 208, the blower 201, the barometer 214, the air pump 213, the second transfer pump 210, the semiconductor cooler 205, and the first transfer pump 206;

[0034] The temperature and humidity sensor 215 can detect the temperature and humidity inside the test chamber 1. With the setting of the controller 4, the controller 4 can transmit signals to multiple devices, and also enables the operator to operate multiple devices through the controller 4.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tool for motor testing, comprising a test box (1), characterized in that: The test box (1) is provided with a simulation mechanism (2) and a mounting mechanism (3) inside; The simulation mechanism (2) comprises a fan (201) and a cold collecting shell (202); the cold collecting shell (202) is fixed to the inner wall of the test box (1); the surface of the cold collecting shell (202) is connected to a plurality of air outlet pipes (203); a first liquid tank (204) is fixed to the surface of the test box (1); a semiconductor refrigerator (205) is fixed to the surface of the first liquid tank (204); a first delivery pump (206) is connected to the top of the first liquid tank (204); a cooling pipe (207) is connected to the surface of the first delivery pump (206); a cooler (208) is installed on the surface of the test box (1); an electric heating plate (209) is fixed to the inner wall of the test box (1); a second delivery pump (210) is arranged on one side of the test box (1); the surface of the second delivery pump (210) is connected to a second liquid tank (211); and an atomizer (212) is fixed to the top of the inner wall of the test box (1).

2. A tool for motor testing according to claim 1, characterized in that: The mounting mechanism (3) comprises a mounting plate (301), a connecting frame (302) being fixed on the top of the mounting plate (301), a plurality of openings for matching the motor installation being provided on the surface of the connecting frame (302), a vibration motor (303) and a plurality of damping springs (304) being fixed on the bottom of the mounting plate (301), and the bottom of the damping spring (304) being fixedly connected to the bottom of the inner wall of the test box (1).

3. A tool for motor testing according to claim 1, characterized in that: The air outlet pipe (203) is arranged in a funnel-shaped structure.

4. A tool for motor testing according to claim 1, characterized in that: The cooler (208) is composed of a compressor, a condenser, an expansion valve, and an evaporator, wherein the evaporator is located inside the test box (1).

5. A tool for motor testing according to claim 1, characterized in that: An air pump (213) is fixed on the surface of the test box (1), a valve is installed on the surface of the fan (201) at the communicating pipe, a pressure gauge (214) is installed on the surface of the test box (1), a closed door is hinged on the surface of the test box (1), and a sealing ring is fixed on the surface of the closed door.

6. A tool for motor testing according to claim 1, characterized in that: A temperature and humidity sensor (215) is fixed on the inner wall of the test box (1), and a controller (4) is fixed on the surface of the test box (1).

Images