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End face sealing structure for motor and stator of hub motor

A technology of end face sealing and wheel hub motors, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of shortening the service life of hub motors, lack of stable sealing supports, and unreliable positions of seals, etc., to achieve easy standardized production, Favorable effect of sealing and improving service life

Inactive Publication Date: 2019-09-27
ZHEJIANG VIE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is a common form of sealing structure for hub motors, but during use, since there is no stable sealing support, the grease needs to be replaced and cleaned frequently
Moreover, the seal cannot be directly formed between the stator and the rotor, the seal is not reliable enough, and the position of the seal is not reliable, thus shortening the service life of the hub motor

Method used

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  • End face sealing structure for motor and stator of hub motor
  • End face sealing structure for motor and stator of hub motor
  • End face sealing structure for motor and stator of hub motor

Examples

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Embodiment 1

[0032] Such as Figure 1 to Figure 3 As shown, this embodiment provides an end face sealing structure for the rotor and the stator of the in-wheel motor. For ease of understanding, the installation of the in-wheel motor is first described. The rotating part of the bearing 15 of the in-wheel motor is installed with the wheel, and the rotor 7 of the in-wheel motor is connected to the rotating part of the bearing 15 by bolts, so as to be fixed with the wheel. The rotor 7 It can drive the wheels to realize synchronous rotation. The stator 6 is connected with the non-rotating part of the bearing 15 through bolts and does not rotate. The coil of the stator 6 is energized to drive the rotor 7 to rotate, and the rotor 7 drives the wheels to rotate. This is the basic principle of the hub motor. Since there is a gap between the rotor 7 and the stator 6, external impurities will enter the interior of the hub motor and affect the hub motor. Therefore, this embodiment provides a seal 1 to ...

Embodiment 2

[0038] Such as Figure 4 As shown, this embodiment provides an end face sealing structure for the hub motor rotor and stator. The difference between this embodiment and Embodiment 1 is that the support frame 5 is covered on the outside of the installation part 2, and the cross section of the support frame 5 is "U" shape.

Embodiment 3

[0040] Such as Figure 5 As shown, this embodiment provides an end face sealing structure for the rotor and stator of an in-wheel motor. The difference between this embodiment and Embodiment 1 is that the cross-sectional shape of the support frame 5 is "L" shape.

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Abstract

The invention relates to the field of hub motor sealing and discloses an end face sealing structure for the motor and the stator of a hub motor. The end face sealing structure comprises a rotor, a stator and a sealing member disposed between the rotor and the stator, wherein the sealing member comprises a mounting portion and a sealing lip; a support skeleton is arranged inside or outside the mounting portion; the sealing lip is in seal fit with the end face of the rotor or the stator; the sealing member can be installed with the rotor and the stator in two ways in one of which the mounting portion is mounted on the rotor and the sealing lip is in sealed against the end face of the stator and in the other of which the mounting portion is mounted on the stator and the sealing lip is in sealed against with the end face of the rotor. The solution in the present invention is designed for solving the technical problem that the conventional hub motor has no reliable sealing member between the stator and the rotor. The sealing member designed by the invention is a separate component, is liable to form and prone to standardized production so as to be convenient in later maintenance.

Description

technical field [0001] The invention relates to the field of hub motor sealing, in particular to the end face sealing structure of the rotor and stator of the hub motor. Background technique [0002] Chinese invention patent CN102007676B discloses an outer rotor type motor and an outer rotor type in-wheel motor. It discloses a technical solution as follows: the outer rotor type motor includes: a stator module formed in a cylindrical shape with a closed rear end, the stator The module is installed on the shaft passing through the central part of the rear end of the stator module; the stator is fixedly installed on the outer circumferential surface of the stator module; the main cooling part is arranged inside the stator module On the peripheral surface, in order to reduce the temperature of the corresponding part, the main cooling part includes one or more recessed grooves formed along the inner peripheral surface of the stator module, and the grooves are formed in a pluralit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/10
CPCH02K5/10
Inventor 马志敏耿传亮黄梅仙齐晓刚
Owner ZHEJIANG VIE SCI & TECH
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