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Electric power steering (EPS) direct current brushless motor for new energy automobile and assembling method of electric power steering EPS direct current brushless motor

A technology for brushless DC motors and new energy vehicles, applied in electric steering mechanisms, electric components, electromechanical devices, etc., can solve the problems of brushless DC motors prone to failure, improve energy absorption and vibration isolation effect, and reduce vibration , the effect of improving stability

Pending Publication Date: 2022-07-15
JIANGSU CHAOLI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an EPS DC brushless motor for electric steering of a new energy vehicle and its assembly method, so as to solve the problem that the DC brushless motor in the steering system of the new energy vehicle is prone to failure when it works for a long time under harsh road conditions

Method used

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  • Electric power steering (EPS) direct current brushless motor for new energy automobile and assembling method of electric power steering EPS direct current brushless motor
  • Electric power steering (EPS) direct current brushless motor for new energy automobile and assembling method of electric power steering EPS direct current brushless motor
  • Electric power steering (EPS) direct current brushless motor for new energy automobile and assembling method of electric power steering EPS direct current brushless motor

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Experimental program
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Effect test

Embodiment 1

[0042] The present invention provides an EPS DC brushless motor for electric steering of a new energy vehicle. For its structure, please refer to Figure 1-3, including a motor body 1 , a mounting plate 2 and a damping mechanism 3 ; the motor body 1 includes a casing 101 , a stator 102 located in the casing 101 , a rotor 103 located in the stator 102 , and a rotor 103 located in the rotor 103 The rotating shaft 104 of the rotating shaft 104; the stator 102 is fixedly installed on the inner wall of the casing 101, and the stator winding is wound inside, so that the rotor 103 rotates in the casing 101 under the action of electromagnetic force; the rotating shaft 104 and the The rotor 103 is fixedly connected, and the rotating shaft 104 is rotatably connected to the casing 101 through a bearing, so that the rotating shaft 104 can rotate in the casing 101; a cooling flow is opened in the side wall of the casing 101 Channel 1011, cooling fluid circulates in the cooling channel 1011...

Embodiment 2

[0049] The present invention also provides a method for assembling an EPS DC brushless motor for electric steering of a new energy vehicle, comprising the following steps:

[0050] (a) First, heat the motor body 1 to make it expand so that the diameter of the inner circle is larger than the outer diameter of the stator 102. Then, the stator 102 is placed in the motor body 1 along the axial direction. After natural cooling, the stator is fixed and installed on the motor. In body 1;

[0051] (b), then install the rotating shaft 104 with the rotor 103 into the bearing of the motor body 1, install the front cover and the rear cover, and apply sealant;

[0052] (c) Before loading into the car, test the performance of the motor. After passing the test, connect the cooling liquid to the cooling channel 1011 to test the cooling effect. After all are qualified, wait for the shock absorption mechanism 3 to be installed;

[0053] (d) First, fix the bottom plate 301 of the damping mechan...

Embodiment 3

[0057] The present invention also provides a power steering system of EPS brushless DC motor for electric steering of a new energy vehicle, including the above-mentioned brushless DC motor 10, EPS controller 20, battery 30, steering column 40, steering wheel 50 and a steering wheel. torque sensor 60; one end of the steering column 40 is installed with the steering wheel 50, and the other end is installed with the torque sensor 60, the output shaft of the DC brushless motor 10 is connected to the steering column 40 for driving all When the steering column 40 rotates, one end of the EPS controller 20 is connected to the brushless DC motor 10 and the other end is connected to the battery 30 . When turning the steering wheel, the torque sensor 60 will detect the torque signal of the steering wheel 50, and transmit the torque model to the EPS controller 20. The EPS controller 20 will work immediately after receiving the torque signal. 20 sends a work command to the motor controller...

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Abstract

The invention discloses a new energy automobile electric steering EPS direct current brushless motor and an assembling method thereof. The new energy automobile electric steering EPS direct current brushless motor comprises a motor body, a mounting plate and a damping mechanism. A cooling flow channel is formed in the side wall of the shell, and cooling liquid circularly flows in the cooling flow channel, so that the temperature in the direct-current brushless motor can be reduced; the mounting plate is arranged at the bottom of the motor body and is used for connecting the damping mechanism; the damping mechanism is used for connecting the direct-current brushless motor and the mounting part; the damping mechanism comprises a bottom plate, an edge supporting assembly and a plurality of first damping springs. The edge supporting assemblies are arranged on the two sides of the bottom of the motor body so that the motor body can float on the bottom plate. The direct current brushless motor can ensure that a new energy automobile can run for a long time under severe road conditions, and the fault rate of a steering system is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of power steering of new energy vehicles, in particular to an EPS DC brushless motor for electric steering of new energy vehicles and an assembling method thereof. Background technique [0002] New energy vehicles refer to the use of unconventional vehicle fuels as the power source (or the use of conventional vehicle fuels, the use of new vehicle power units), and the integration of advanced technologies in vehicle power control and driving. New technology, new structure of the car. New energy vehicles include four major types of hybrid electric vehicles (HEV), pure electric vehicles (BEV, including solar vehicles), fuel cell electric vehicles (FCEV), and other new energy vehicles (such as supercapacitors, flywheels and other high-efficiency energy storage) vehicles Wait. [0003] In recent years, with the advancement of new energy vehicle technology, new energy vehicles have a cruising range and driving e...

Claims

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Application Information

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IPC IPC(8): H02K5/20H02K9/19H02K5/24F16F15/08H02K29/00B62D5/04
CPCH02K5/203H02K9/19H02K5/24F16F15/08H02K29/00B62D5/0409
Inventor 王爱仙
Owner JIANGSU CHAOLI ELECTRIC
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