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Waterproof sealing structure of plastic-sealed stator and bearing end cover and plastic-sealed motor

A plastic-encapsulated stator and waterproof sealing technology, which is applied to electrical components, electromechanical devices, electric components, etc., can solve problems such as poor waterproof and sealing effects, and achieve the effects of facilitating installation, improving waterproof and sealing effects, and ensuring stability and reliability

Active Publication Date: 2018-03-27
GUANGDONG WELLING ELECTRIC MACHINE MFG
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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 overcome the deficiencies of the above-mentioned prior art, and provide a waterproof sealing structure of the plastic-sealed stator and the bearing end cover and a plastic-sealed motor, which solve the technical problem of poor waterproof sealing effect between the existing plastic-sealed stator and the bearing end cover

Method used

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  • Waterproof sealing structure of plastic-sealed stator and bearing end cover and plastic-sealed motor
  • Waterproof sealing structure of plastic-sealed stator and bearing end cover and plastic-sealed motor
  • Waterproof sealing structure of plastic-sealed stator and bearing end cover and plastic-sealed motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as Figure 1-12 As shown, the waterproof sealing structure of the plastic-encapsulated stator and the bearing end cover provided by the first embodiment of the present invention includes the plastic-enclosed stator 1a and the bearing end cover 2a arranged at the outer end of the plastic-enclosed stator 1a, and the plastic-enclosed stator 1a is provided with an annular locking protrusion. edge 11a, the bearing end cover 2a is provided with an annular slot 21a that fits with the annular locking flange 11a, and the annular locking flange 11a has an axis facing the bearing end cover 2a along the axial direction of the plastic-sealed stator 1a. Towards the end face 111a, the radially inner surface 113a facing the central axis of the plastic-encapsulated stator 1a along the radial direction of the plastic-enclosed stator 1a, and the radially outer surface 112a facing away from the central axis of the plastic-enclosed stator 1a along the radial direction of the plastic-enclo...

Embodiment 2

[0052] Such as Figures 13 to 16 As shown, in the waterproof sealing structure of the plastic-sealed stator and bearing end cover provided in this embodiment and the plastic-sealed motor, the positioning groove is at least one local groove 110b provided at a local circumferential position of the ring-shaped locking flange 11b, and the waterproof seal The ring 3b includes an annular sealing body 31b and protruding parts 32b protruding from one side of the annular sealing body 31b and having the same number as the local grooves 110b, and each protruding part 32b is inserted into each local groove 110b . After the bearing cover and the waterproof sealing ring 3b are installed on the plastic-sealed stator 1b, the annular sealing body 31b is elastically compressed between the axial end surface 111b of the annular locking flange 11b and the bottom groove surface of the annular locking groove. The main difference between this embodiment and the first embodiment lies in the structura...

Embodiment 3

[0061] Such as Figure 17 and Figure 18 As shown, the same as the second embodiment, in the waterproof sealing structure of the plastic-sealed stator and the bearing end cover provided by this embodiment, the positioning groove is also at least one local part located at a local circumferential position of the ring-shaped locking flange 11c. The groove 110c, correspondingly, the waterproof sealing ring 3c also includes an annular sealing body 31c and protrusions 32c protruding from one side of the annular sealing body 31c and having the same number as the local grooves 110c, and each protrusion 32c They are inserted and positioned in the local grooves 110c respectively. After the bearing cover and the waterproof sealing ring 3c are installed on the plastic-sealed stator 1c, the annular sealing body 31c is elastically compressed on the axial end surface 111c of the annular locking flange 11c and the ring between the bottom groove surfaces of the grooves; and the difference fro...

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Abstract

The invention relates to the field of motors, and discloses a plastic package stator and bearing end cap waterproof sealing structure and a plastic package motor. The plastic package stator and bearing end cap waterproof sealing structure comprises a plastic package stator, a bearing end cap and a waterproof sealing ring, wherein the plastic package stator is provided with an annular clamping flange, the bearing end cap is provided with an annular clamping groove matched with the annular clamping flange in a clamped and inserted mode, the annular clamping flange is provided with an axial end face towards the bearing end cap in the axial direction of the plastic package stator, the annular clamping groove is provided with a bottom groove face towards the plastic package stator in the axial direction of the plastic package stator, the waterproof sealing ring is elastically compressed between the axial end face and the bottom groove face, and a positioning groove allowing the waterproof sealing ring to be clamped, inserted and positioned is formed in the axial end face in a concave mode. The plastic package stator and bearing end cap waterproof sealing structure prevents influences of a needle insertion hole, a detection hole and a detachment notch which probably exist in the radial outer surface of the annular clamping flange on the sealing effect of the waterproof sealing ring, and achieves the aims of improving the waterproof sealing effect between the plastic package stator and the bearing end cap.

Description

technical field [0001] The invention belongs to the field of motors, in particular to a waterproof sealing structure of a plastic-sealed stator and a bearing end cover and a plastic-sealed motor with the waterproof sealing structure. Background technique [0002] Plastic-sealed motors generally have two bearing end covers located on both sides of the stator core; in traditional technology, one bearing end cover and the stator core are generally packaged in the plastic-sealed stator, and the other bearing end The cover is covered and fixed on the end of the plastic-sealed stator in an interference fit manner. For ease of description, the bearing end cover located inside the plastic-encapsulated stator is called the inner bearing end cover, and the bearing end cover located outside the plastic-enclosed stator is called the outer bearing end cover. The mating connection between the outer bearing end cover and the plastic-sealed stator is mainly realized through the cooperation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/10
CPCH02K5/10H02K5/16
Inventor 李国雄周庆杰
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG
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