CN203522386U

CN203522386U - Insulation end cap

Info

Publication number: CN203522386U
Application number: CN201320621904.7U
Authority: CN
Inventors: 罗宏兰
Original assignee: Zhongda Motors Co Ltd
Current assignee: Zhongda Motors Co Ltd
Priority date: 2013-10-09
Filing date: 2013-10-09
Publication date: 2014-04-02
Anticipated expiration: 2023-10-09

Abstract

The utility model belongs to the field of motor equipment, and relates to an insulation end cap. The insulation end cap comprises an end cap body, wherein the front end of the outer circumferential face of the end cap body is provided with a first groove, the rear end of the outer circumferential face of the end cap body is provided with a second groove, and the middle of the end cap body is provided with a through hole. According to the improved insulation end cap, an insulation sleeve is additionally arranged in a bearing chamber of an end cap, a piece of F-level NHN insulation paper is arranged between the insulation sleeve and the inner wall of the bearing chamber, the butt-joint portion is attached to the insulation sleeve through glue, after the end cap is heated, the insulation sleeve falls into the bearing chamber, and metal machining is carried out after the end cap is cooled. The end cap of the structure has the advantages that the machining process is simple and the manufacturing cycle is short. The operation process is a little complex, and more importantly, the qualified rate is low and cannot reach 50%. On the basis, the insulation end cap is provided as an improvement, and the qualified rate is improved.

Description

A kind of insulated end cover

Technical field

The utility model belongs to motor device field, relates to a kind of insulated end cover.

Background technology

End cap is the key components and parts in motor, so the structural design of end cap and processing technology are all very important, its material, inner circle size, excircle dimension, wall thickness intensity, shape etc. have direct impact to the operation stability of motor.And use in the market maximum insulated end covers, be to adopt bag on core retainer plate also to dry without latitude band brush ring epoxy resins, then be assembled into one with end cap, its processing technology is more loaded down with trivial details, and cost is higher simultaneously, and fabrication cycle is longer, cannot meet existing need of production.And insulated end cover after improvement is to adopt insulating case of the indoor increase of bearing with end cover, between insulating case and bearing chamber inwall, use one deck F level NHN insulating paper, joint is cemented on insulating case with glue, after end cap heating, insulating case is fallen in bearing chamber, carries out metalworking after cooling.The advantage of this structure is that processing technology is simple, fabrication cycle is shorter, and the loaded down with trivial details degree of operating process is general, but the conforming product rate that the major defect existing is is lower, 50% less than, be Given this necessary further to carry out on this basis product development to improve qualification rate.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of insulated end cover simple in structure, ingenious, rational is provided, and this end cap can effectively improve the qualification rate of product, thereby reduces manufacturing cost, enhances productivity.

The technical scheme providing according to the utility model: a kind of insulated end cover, is characterised in that: comprise end cap body, described end cap body outer circumference surface front end is offered the first groove, and the second groove is offered in rear end, is provided with through hole in the middle of end cap body.

As further improvement of the utility model, the distance a between described the first groove and end cap body front end face is 5mm; The second slot pitch is 2mm from the distance b between end cap body rear end face; The groove width m of described the first groove, the second groove is 3mm, and the diameter phi d3 of bottom land place annulus is 210mm; The diameter phi d1 of through hole is 194mm, and end cap body front end outside diameter φ d2 is 214mm, and end cap body rear end outside diameter φ d4 is 216mm, and the thickness n of end cap body 1 is 53mm.

The utility model compared with prior art, advantage is: the utility model is to adopt insulating case of the indoor increase of bearing with end cover through the insulated end cover of improvement, between insulating case and bearing chamber inwall, use one deck F level NHN insulating paper, joint is cemented on insulating case with glue, after end cap heating, insulating case is fallen in bearing chamber, carry out metalworking after cooling.The advantage of this structure is that processing technology is simple, and fabrication cycle is shorter, and the loaded down with trivial details degree of operating process is general, and most importantly qualification rate is lower, 50% less than.Inventing on this basis improved order is exactly to improve qualification rate.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Embodiment

Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.

As shown in Figure 1, comprise end cap body 1, the first groove 2, the second groove 3, endoporus 4 etc.

As shown in Figure 1, the utility model is a kind of insulated end cover, comprises end cap body 1, and the thickness n of end cap body 1 is 53mm, and described end cap body 1 outer circumference surface front end is offered the first groove 2, and the second groove 3 is offered in rear end, is provided with through hole 4 in the middle of end cap body 1.

Distance a between described the first groove 2 and end cap body 1 front end face is 5mm; The second groove 3 is 2mm apart from the distance b between end cap body 1 rear end face; The groove width m of described the first groove 2, the second groove 3 is 3mm, and the diameter phi d3 of bottom land place annulus is 210mm; The diameter phi d1 of through hole 4 is 194mm, and end cap body 1 front end outside diameter φ d2 is 214mm, and end cap body 1 rear end outside diameter φ d4 is 216mm.

The utility model only need be offered respectively at existing insulated end cover two ends a groove, when Vehicle Processing, can to notch place, just can reach and will in unnecessary part removal, not injure insulating paper by a car, insulating paper is wrapped on insulated end cover between two grooves, and the convenient grease-proof and waterproof material of filling plays sealing function; The pre-fixed one deck polyimide film of insulating paper seam crossing on insulated end cover, wrap after insulating paper, at seam crossing, fix one deck polyimide film again, for requirement attractive in appearance, inside and outside two layers of polyimide film overlaps as far as possible, but that seam should be positioned at other production process of Width centre position and the technological process of outer polyimide film is all constant.The utility model only increases polyimide film cost with respect to existing scheme, and other cost is constant, but the qualification rate of product turned over one and turn on original basis, can reach more than 98%.

Claims

1. an insulated end cover, is characterized in that: comprise end cap body (1), described end cap body (1) outer circumference surface front end is offered the first groove (2), and the second groove (3) is offered in rear end, is provided with through hole (4) in the middle of end cap body (1);

Distance a between described the first groove (2) and end cap body (1) front end face is 15mm; The second groove (3) is 6mm apart from the distance b between end cap body (1) rear end face; The groove width m of described the first groove (2), the second groove (3) is 9mm, and the diameter phi d3 of bottom land place annulus is 630mm; The diameter phi d1 of through hole (4) is 582mm, and end cap body (1) front end outside diameter φ d2 is 642mm, and end cap body (1) rear end outside diameter φ d4 is 648mm, and the thickness n of end cap body (1) is 53mm.