CN1027847C

CN1027847C - Rrtor with integral end commutator

Info

Publication number: CN1027847C
Application number: CN 89106759
Authority: CN
Inventors: 叶羽纺; 叶羽经; 叶羽纬; 许一心
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-08-22
Filing date: 1989-08-22
Publication date: 1995-03-08
Anticipated expiration: 2004-08-22
Also published as: CN1049757A

Abstract

The present invention discloses an integral end face commutator rotor, characterized in that a commutator bar on the end face commutator comprises two copper bars whose heads are closely abutted together. The commutator bar part and the armature element part of each copper bar are made of the integral copper material. The length of each copper bar is equal to the sum of the commutator bar and the armature element or is equal to two times of the sum. The rotor with the structure can be used in the starters of automobiles and tractors and can also be used in an electrical motor with the great current. In various working conditions, the phenomenon of disordering can not occur.

Description

Rrtor with integral end commutator

The present invention relates to a kind of rotor of integral end commutator, adopt the starter of this rotor structure can be used for various automobiles, tractor and internal combustion engine, this rotor can also be applicable to the motor of big electric current.

At present, on automobile and tractor in the motor of employed starter and big electric current, the structure of its rotor is mostly taked between the commutator segment on armature component and the commutator with being welded to connect, more often break down at weld like this, particularly after the rotating speed of rotor improves, it is more outstanding that this problem just becomes, and seriously influences starter operation and motor properties.For the defective that overcomes or avoid starter to produce, propose the starter armature structure is adopted and the diverse form of traditional handicraft at Chinese patent CN86205751 number about " a kind of improved starter ", the commutator segment of this rotor and armature component are to constitute with the copper product of same integral body, its armature component is divided into two-layer up and down by designing requirement, afterbody at armature component carries out the moulding welding, does like this and can avoid the sealing-off problem that the welding place produces between armature component and the commutator segment.But this technology relatively is suitable for the commutator of cylindrical form, if it is big to take the technology of this form to carry out difficulty of processing in the commutator of end face structure, particularly two-layer distortion moulding is up and down considerably bothered.

Task of the present invention provides a kind of rotor of integral end commutator, adopt the starter and the motor of this rotor, not only have good performance, avoided frequent sealing-off problem between armature component and the commutator segment, and can satisfy the designing requirement of high rotating speed, big electric current.

Task of the present invention is finished in such a way: when end commutator that designs starter and motor and armature component, its commutator segment and armature component are stamping forming by designing requirement with holistic copper bar, the width of every copper bar on end face is half of each width of commutator segment, the length of every copper bar equals the summation of commutator segment and armature component length, subsequently the copper bar head of these two moulding is pieced together and disturbed together, a commutator segment forming end commutator, and this two copper bars middle distortion becomes the desired shape of armature component part, then the punching press of this process, armature component after the shaping is pressed in the groove of rotor core, and the commutator segment that is abutted against together by two copper bar heads is pressed onto on the main shaft of rotor, last as requested the afterbody of armature winding is welded to connect, and takes the consolidation process that insulate.The rotor of the end commutator of this pattern, its manufacturing process is fairly simple, does not need every copper bar is processed into two-layer up and down, so moulding is easy.The form of all right time processing moulding of the commutator segment of this integral end commutator and armature component, the original requirement adopted two copper bars that are welded to connect at the armature winding afterbody, substitute with a whole copper bar, with regard to not needing the afterbody of armature winding is welded like this, select for use the length of every copper bar to equal the twice of each commutator segment and armature component length summation, these copper bar two ends punching press on request become the commutator segment shape of end commutator, its width is half of width of commutator segment, the mid portion of this copper bar is processed into the shape of armature component, copper bar with this root shaping injects in the groove of rotor core then, forms complete commutator segment after the assembly of the end of its two ends and other copper bars is disturbed together and compresses on the main shaft of rotor.The rotor of this end commutator, any position do not need welding sequence, and consolidation process directly insulate after the assembling.This all-in-one-piece end commutator rotor, because commutator segment and armature component, be to constitute between the armature component afterbody with same copper is whole, it the sealing-off problem can not occur fully, and commutator segment is abutted against together to be formed by the end of two copper bars, its electric conductivity is good, can not produce the phenomenon of loose contact.Therefore, take the starter and the motor of this rotor structure, run up and the operational environment of big electric current under, the high temperature that is produced between brush and the commutator just can not make starter and motor break down, and improves the useful life of starter and motor significantly.

The invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is the stamping forming cutaway view of copper bar of the present invention.

Fig. 2 is the transverse sectional view that two copper bars of the present invention are formed a complete commutator segment and armature component.

Fig. 3 is the vertical view that two copper of the present invention are formed a complete commutator segment and armature component.

Fig. 4 is that the present invention forms commutator segment and the armature component structure chart that afterbody need not to weld with a whole copper bar.

Fig. 5 is the installation diagram of end commutator rotor of the present invention.

As can be seen from Figure 1, commutator segment on the end commutator (1) part and armature component (2) part are to form with one whole copper bar (3), we select the copper product of proper width and length for use, by the designing requirement punch forming, make punching press, copper bar length after the shaping equals the sum total of commutator segment (1) and armature component (2) length, and its width equals end face to half of each commutator segment (1) width of device, copper bar after the punch forming (3), per two is one group, become a complete commutator segment (1), again the head of this two copper bar (3) is abutted against together, and their other parts are separated, this shows that commutator segment (1) part and armature component (2) part of every copper bar (3) are to make with the copper product of same integral body.

Fig. 2 and Fig. 3 illustrate the punching press of per two processes, copper bar after the shaping (3) abuts against transverse sectional view and the vertical view of forming a complete commutator segment together, the head of this two copper bar (3) is close together, and be processed into certain shape on request from the middle part beginning of every copper bar, separate each other, then commutator segment and packing material are arranged in the shape of end commutator, use clamp, carry out the processing assembling of corresponding operation.

Fig. 4 is a commutator segment (1) and armature component (2) of taking the integral end commutator of another kind of structure, it is that to equal the copper bar (4) of commutator segment (1) and armature component (2) summation twice with a length made, the two ends of copper bar (4) become the commutator segment shape of end commutator through punching press, the intermediate portion processes by the shape of armature component (2), and copper bar (4) can be used for changing copper bar (3).Because the width of copper bar (4) just also equals each width of commutator segment half, during assembling the two ends of copper bar (4) are inserted into respectively on different commutator segments (1) position, simultaneously the copper bar after the shaping (4) is directly injected in the groove of armature core (5), and needn't locate to be welded to connect at the afterbody (6) of armature component (2) again.

Fig. 5 is the rotor installation diagram of this integral end commutator, commutator segment on the end commutator (1) is to contact with brush on a vertical plane, in the armature core (5) and main shaft (7) of assembling rotor, carry out the rule assembling, promptly armature component (2) is compressed into the groove of armature core (5), commutator is pressed on the rotor main shaft (7), afterbody (6) to armature component (2) needs the position of connection to weld, and carries out dipping lacquer, oven dry, colligation, insulation consolidation process again.

Claims

1, a kind of by commutator segment (1), armature component (2), the armature core of rotor (5), the rotor of the integral end commutator that main shaft (7) is formed, it is characterized in that: each commutator segment on the commutator is to put together together with two copper bars (3) head to constitute, commutator segment (1) and armature component (2) are made with same global copper material, the middle part distortion of two copper bars (3) becomes the desired shape of armature component (2), the punching press of this process, armature component after the shaping (2) is pressed in the groove of rotor core (5), to be pressed onto on the main shaft (7) of rotor by the commutator segment (1) that two copper bars (3) head abuts against together, and as requested the afterbody (6) of armature winding is welded, take dipping lacquer at last, oven dry, colligation, the insulation consolidation process.

2, press the rotor of the integral end commutator of claim 1 defined, it is characterized in that: the length of every copper bar (3) equals the summation of commutator segment (1) and armature component (2) length, and the width of every copper bar (3) on end face is each width of commutator segment half.

3, press the rotor of the integral end commutator of claim 1 defined, it is characterized in that: the length of copper bar (4) is the twice of commutator segment (1) and both length summations of armature component (2), use a copper bar (4) just to equal to use two copper bars (3), the two ends of copper bar (4) become the commutator segment shape of end commutator through punching press, its middle part part is pressed the shape processing of armature component (2), copper bar after the shaping (4) is directly injected in the groove of armature core (5), meanwhile the two ends of copper bar (4) are inserted into respectively on the position of different commutator segments (1), carry out dipping lacquer subsequently, oven dry, colligation, the insulation consolidation process.