Leak detection device for electric vehicle motor
A technology of motor testing and electric vehicles, applied in the direction of detecting the appearance of fluid at the leakage point, using liquid/vacuum degree for liquid tightness measurement, etc., can solve the problems of inaccurate detection results and incomplete sealing measures, etc. Achieve the effect of simple operation, intuitive and accurate detection results
Active Publication Date: 2016-11-30
JIANGSU XIECHANG ELECTRONICS TECH
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Problems solved by technology
However, in the actual assembly operation, due to various reasons, the sealing measures may not be fully implemented. After the motor arrives in the market, there are still many cases of non-returning due to water entering the motor after rain.
However, in the actual production process, the motor is generally tested by sampling leak detection, and the detection method is simple, and the detection results are not accurate.
Method used
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Embodiment Construction
[0016] The present invention will be described in further detail below through specific examples.
[0017] like figure 1 As shown, a leak testing device for an electric vehicle motor, the leak testing device includes a leak testing tank, a leak testing gas source and a leak testing nozzle 5, the leak testing tank is filled with liquid for observation, and the leak testing nozzle 5 It is fixed on the side cover 4 of the motor and is sealed and connected with the side cover of the motor. The inner hole 54 of the leak test nozzle 5 communicates with the internal space of the motor, and the leak test nozzle 5 communicates with the leak test gas source pipeline. The motor is impregnated with in the liquid in the leak test tank.
[0018] The leak detection gas nozzle 5 includes a gas nozzle body, one end of the gas nozzle body is provided with a threaded portion 51, the side cover 4 is provided with a threaded hole matching the threaded portion 51, and the other end of the gas nozz...
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The invention discloses a leak testing device for an electric vehicle motor. The leak testing device comprises a leak testing tank, a leak testing gas source and a leak testing nozzle. The leak testing tank is filled with liquid for observation, and the leak testing nozzle is fixed. On the side cover of the motor and sealed with the side cover of the motor, the inner hole of the leak test nozzle communicates with the internal space of the motor, the leak test nozzle communicates with the leak test gas source pipeline, and the motor is immersed in the leak test tank inside the liquid. The leak detection device is easy to operate and is applicable to the detection of all motors, and the detection result is intuitive and accurate.
Description
technical field [0001] The invention relates to a leak detection device, in particular to a leak detection device for an electric vehicle motor. Background technique [0002] Existing electric vehicle motors generally consist of a rotor and a stator. The rotor consists of a hub, magnetic steel, end caps, and bearings. The stator consists of iron core windings, motor shafts, power lines, Halls, and circuit boards. This kind of electric vehicle motor is no problem to run and use under normal conditions. If it encounters rainy days, rainwater will seep into the motor from the gaps between the hub, side cover and shaft. When the rainwater reaches a certain level inside the motor, it will cause The magnetic steel and iron core of the motor are rusted and corroded, and if it is more serious, it will cause the motor Hall to fail or be damaged. In order to make the inside of the motor completely waterproof, it is necessary to take effective waterproof measures between the parts of ...
Claims
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IPC IPC(8): G01M3/06
Inventor 顾挺
Owner JIANGSU XIECHANG ELECTRONICS TECH