Electric vehicle motor stall protection device and protection method thereof

A protection device and motor protection technology, applied in emergency protection circuit devices, electromechanical devices, electric vehicles, etc., can solve the problems of reducing the strength of the rotating shaft, affecting driving safety, and wearing the surface of the rotating shaft, so as to reduce wear and improve flexibility.

Active Publication Date: 2021-06-04
常州市武进金顺机电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stall protection device of the electric vehicle motor in the above-mentioned patent adopts the speed limit of the rotating shaft, whic

Method used

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  • Electric vehicle motor stall protection device and protection method thereof
  • Electric vehicle motor stall protection device and protection method thereof
  • Electric vehicle motor stall protection device and protection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1:

[0042] Electric vehicle motor stall protection device, such as Figure 1-8 As shown, a motor box 1 is included; the inner wall of the motor box 1 is connected to the drive motor 11 by a bolt; the outer wall of the output shaft of the driving motor 11 is connected to a coupling 12; the outer wall of the coupling 12 is passed The bolt is connected to the drive connecting 7; the drive connecting 7 side wall processed a bonded groove 35; the inner wall of the key groove 35 is placed in the inner wall; the driving connection 7 is fixed to the outer wall fixed to carry the carrier 10; carrying the inner wall of the ring 10 side Table with a keyhole 22; the outer wall of the motor box 1 is fixed to the motor protective plate 2 by the screw 2; the inner wall of the motor protective plate 2 has an electromagnetic groove 29; the inner wall of the electromagnetic groove 29 is fixed by the screw fixation. 24; The inner wall of the hollow base 24 is fixedly connected to the ...

Example Embodiment

[0046] Example 2:

[0047] Protection of electric vehicle motor stall protection device, such as Figure 7 As shown, including the following steps:

[0048] S1: The electromagnetic groove 29 is powered, the displacement sensor 14 is turned on, and the drive motor 11 is operated;

[0049] S2: Measure the displacement sensor 14 to measure the distance between the mobile link 8 and the human control drive motor 11 rotational speed;

[0050] S3: If the comparison is normal, repeat S2. If the result is displayed, it is transferred to S4. If the bit is the result, the display motor is severe, then transfer to S5;

[0051] S4: The electromagnetic groove 29 stops power;

[0052] S5: The brake cylinder 4 is running.

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Abstract

The invention discloses an electric vehicle motor stall protection device and a protection method thereof, and relates to the technical field of motor stall protection. The problems that during motor stall protection, damage to a rotating shaft is large, and follow-up driving safety is affected are solved. The motor stall protection device of the electric vehicle comprises a motor box, and the inner wall of one side of the motor box is connected with a driving motor through bolts; the outer wall of one side of the output shaft of the driving motor is connected with a coupler through bolts. The protection method of the motor stall protection device of the electric vehicle comprises the steps that an electromagnetic groove is powered on, a displacement sensor is started, and the driving motor runs. By arranging a bearing connecting ring, a hollow base, a telescopic spring, a telescopic connecting rod, a fixed connecting plate, an arc-shaped speed reducing plate and a friction layer, the friction layer conducts friction speed reduction on the bearing connecting ring on the driving connecting shaft when the driving motor stalls, and the friction layer on the arc-shaped speed reducing plate is prevented from making direct contact with the driving connecting shaft, so that subsequent driving is prevented from being affected by damage of the driving connecting shaft.

Description

technical field [0001] The invention relates to the technical field of motor stall protection, in particular to an electric vehicle motor stall protection device and a protection method thereof. Background technique [0002] Electric vehicles, that is, electric drive vehicles, have another name called electric drive vehicles. Electric vehicles are divided into AC electric vehicles and DC electric vehicles. Generally speaking, electric vehicles use batteries as energy sources. Through controllers, motors and other components, electric energy is converted into mechanical energy movement to control the current and change the speed of the vehicle. In the daily driving process Among them, electric vehicles are easy to lose control, which is generally due to motor stall. Motor stall refers to motor stall, and motor stall is the performance of motor speed loss of control. At present, in the prior art, the motor stall protection of electric vehicles generally adopts countershaft pro...

Claims

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Application Information

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IPC IPC(8): H02K7/102H02K11/20H02H7/093
CPCH02K7/1021H02K11/20H02H7/093Y02T10/64
Inventor 刘彦倪锦良
Owner 常州市武进金顺机电有限公司
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