Motor slot wedge with sealing structure and combined device

A technology of motor slot wedge and sealing structure, applied in electromechanical devices, electric components, magnetic circuit shape/style/structure, etc., can solve problems such as debonding, damage insulation, medium loss, etc., and achieve the effect of preventing the loss of paint

A technology of motor slot wedge and sealing structure, applied in electromechanical devices, electric components, magnetic circuit shape/style/structure, etc., can solve problems such as debonding, damage insulation, medium loss, etc., and achieve the effect of preventing the loss of paint

CN104319927BActive Publication Date: 2016-04-27XINJIANG GOLDWIND SCI & TECH
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  • Motor slot wedge with sealing structure and combined device
  • Motor slot wedge with sealing structure and combined device
  • Motor slot wedge with sealing structure and combined device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The embodiment of the present invention improves the prior art slot wedge, adds a sealing structure on the basis of the existing slot wedge, and proposes a motor slot wedge with a sealing structure. A groove is arranged on the outer wall of the slot wedge, and a thermal expansion material is arranged in the groove, and the thermal expansion material contacts the inner wall of the tooth groove of the iron core after being heated and expanded. Among them, the thermally expandable material is preferably an elastic thermally expandable material, and specifically, thermally expandable glass mat or thermally expandable rubber can be used.

[0069] The specific structure of the groove and the expansion material will be described in detail below in conjunction with the accompanying drawings, and for the convenience of description, the relevant structures will be defined and described. The part between the teeth 9 of the core is called the cogging, and the cogging of the core is...

Embodiment 2

[0085] The solution provided by this embodiment is a motor core with a sealed structure, such as Figure 31 and Figure 32 shown, as a pair Figure 5 and Figure 6 The improvement of the existing iron core structure shown, the difference between this embodiment and the first embodiment is that the thermal expansion material is not arranged in the groove of the slot wedge, but directly arranged at the notch of the core tooth groove . In this embodiment, the inner wall at the bottom of the groove of the iron core slot is stepped (different from the prior art), the thermal expansion material abuts against the surface of the lower step, and the thickness of the expansion material is higher than that between the lower step and the upper step. height difference between them. Such as Figure 32 After being heated and expanded, the heat-expandable material extends along the surface of the upper step to fill the gap between the surface of the upper step and the bottom side of the ...

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Abstract

The invention provides a motor slot wedge with a sealing structure and a combined device, wherein the structure of the motor slot wedge is as follows: a groove is arranged on the outer wall of the slot wedge, a thermal expansion material is arranged in the groove, and the thermal expansion After the material is heated and expanded, it contacts the inner wall of the core slot. In the technical solution of the present invention, a sealing structure is formed between the slot wedge and the inner wall of the tooth groove of the iron core by providing grooves on the outer wall of the slot wedge and filling the thermal expansion material, preventing moisture from entering the teeth of the iron core. The interior of the groove breaks down the insulating structure and prevents varnish loss after vacuum pressure impregnation.

Description

technical field [0001] The invention relates to a motor slot wedge, in particular to a motor slot wedge with a sealing structure and a combined device of the motor iron core and the slot wedge. Background technique [0002] 1. Description of the insulation structure of the motor and the structure of the slot wedge [0003] In the production process of the motor, it is necessary to open slots on the iron core of the stator or rotor, and arrange coils in the slots, and then install various shapes of slot wedges on the slots of the slots to fix the coils in the slots. Commonly used materials for making slot wedges are: 3020-3023 (the number is the type of insulating material) phenolic laminated cardboard; bamboo (after insulation treatment, reaching insulation grade E); 3230 phenolic laminated glass cloth board, 3231 aniline phenolic Laminated glass cloth board (after insulation treatment, reach insulation grade B); 3240 epoxy phenolic laminated glass cloth board (after insula...

Claims

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Application Information

Patent Timeline
27 Apr 2016
Publication
CN104319927B
IPC
H02K3/487; H02K1/16; H02K1/26
CPC
H02K1/165; H02K1/265; H02K3/34; H02K3/44; H02K3/487; H02K1/16; H02K1/26
Inventors
王栋; 马盛骏