CN204258005U

CN204258005U - Splicing type commutator

Info

Publication number: CN204258005U
Application number: CN201420780366.0U
Authority: CN
Inventors: 陈德雅
Original assignee: RUIAN DEYA ELECTRONIC Co Ltd
Current assignee: RUIAN DEYA ELECTRONIC Co Ltd
Priority date: 2014-12-12
Filing date: 2014-12-12
Publication date: 2015-04-08
Anticipated expiration: 2024-12-12

Abstract

A kind of splicing type commutator disclosed in the utility model, many the copper bars that the excircle being included in commutator matrix is evenly laid, copper bar is injection-compression molding together with commutator matrix, the inner side of copper bar is provided with hook pin and commutator matrix strong bonded, it is characterized in that: described copper bar has the top vertically extended to direction, commutator upper surface, top dimension reduces formation plug, described hook pin has many along in the short transverse of copper bar, mutually staggers non-interference between the hook pin of adjacent copper bar in the short transverse of copper bar.Above-mentioned commutator can realize grafting and use, improve ease of use, to utilize between the hook pin of adjacent copper bar mutually staggering in the height direction simultaneously, every hook pin periphery is made to leave greater room for filling basis material, also the head width size of hook pin can be made to widen, so strengthen the bond strength between copper bar and commutator matrix, make the Stability Analysis of Structures of commutator matrix, thus effectively improve mechanical strength and the hypervelocity performance of commutator product.

Description

Splicing type commutator

Technical field

The utility model relates to a kind of improvement of commutator product.

Background technology

Commutator is mainly applied in electric tool, the essential structure of commutator is: many copper bars that the excircle being included in commutator matrix is evenly laid, described copper bar is injection-compression molding together with commutator matrix, and the inner side of described copper bar is provided with hook pin and commutator matrix strong bonded.At present, commutator product, when installing and using, is all be connected with coil the end of a thread by welding manner, uses inconvenient in some occasion; Further, be mechanical strength and the hypervelocity performance of raising commutator, strengthen the bond strength between copper bar and commutator matrix, the maximum method of employing is the structure of the hook pin improving copper bar at present, and most preferred technique scheme is the head width size adding hook pin.But the head width size adding hook pin can bring following harmful effect: one is that hook pin periphery can reduce for the space of filling basis material, easily causes the instability of commutator basal body structure; Two be adjacent hook pin head between distance can be too small, even if directly do not interfere, copper bar pressure injection phase together with hook pin also can be made to abut against trigger rawly indirectly to interfere, cause commutator product percent defective high.

Summary of the invention

In view of the deficiencies in the prior art, the purpose of this utility model is that providing one can realize grafting uses, and improves ease of use, strengthens the bond strength between copper bar and matrix, make matrix structure stabilizes, effectively improve the splicing type commutator of product mechanical strength and hypervelocity performance.

The utility model is implemented by the following technical programs:

Splicing type commutator, many the copper bars that the excircle being included in commutator matrix is evenly laid, described copper bar is injection-compression molding together with commutator matrix, the inner side of described copper bar is provided with hook pin and commutator matrix strong bonded, it is characterized in that: described copper bar has the top vertically extended to direction, commutator upper surface, top dimension reduces formation plug, described hook pin has many along in the short transverse of copper bar, mutually staggers non-interference between the hook pin of adjacent copper bar in the short transverse of copper bar.

The inner side of described copper bar has upper, on the upper side, on the lower side and lower four positions can arrange hook pin along copper bar short transverse, described copper bar divides copper bar A and copper bar B two type, copper bar A and copper bar B is laid staggeredly at the excircle of described commutator matrix, the inner side of described copper bar A is provided with two hook pin in two positions upper and on the lower side, and the inner side of described copper bar B is provided with two hook pin in partially upper and lower two positions.

After adopting technique scheme, first, copper bar top upwards extends and forms plug after minification, so just can realize the inserting function of commutator, improves the ease of use of commutator in specific occasion; The important point in addition, because the hook pin between adjacent copper bar staggers non-interference in the height direction mutually, every hook pin periphery is enable to leave greater room for filling basis material, thus make the Stability Analysis of Structures of commutator matrix, also the head width size of hook pin can be made to widen simultaneously, strengthen the bond strength between copper bar and commutator matrix, thus effectively improve mechanical strength and the hypervelocity performance of commutator product.

Accompanying drawing explanation

The utility model has following accompanying drawing:

Fig. 1 is the structural representation of splicing type commutator;

Fig. 2 is the A-A cutaway view of Fig. 1.

Embodiment

As shown in the figure, splicing type commutator of the present utility model, many the copper bars that the excircle being included in commutator matrix 1 is evenly laid, described copper bar is injection-compression molding together with commutator matrix 1, the inner side of described copper bar is provided with hook pin 3 and commutator matrix 1 strong bonded, described copper bar has the top 2 vertically extended to direction, commutator upper surface, top 2 size reduces formation plug, described hook pin 3 has many along in the short transverse of copper bar, mutually staggers non-interference between the hook pin 3 of adjacent copper bar in the short transverse of copper bar.

Concrete structure is: the inner side of described copper bar has upper, on the upper side, on the lower side and lower four positions can arrange hook pin 3 along copper bar short transverse, described copper bar divides copper bar A and copper bar B two type, copper bar A and copper bar B is laid staggeredly at the excircle of described commutator matrix 1, the inner side of described copper bar A is provided with two hook pin 3 in two positions upper and on the lower side, and the inner side of described copper bar B is provided with two hook pin 3 in partially upper and lower two positions.

Splicing type commutator of the present utility model, first, copper bar top upwards extends and forms plug after minification, so just can realize the inserting function of commutator, improves the ease of use of commutator in specific occasion; The important point in addition, because the hook pin between adjacent copper bar staggers non-interference in the height direction mutually, every hook pin periphery is enable to leave greater room for filling basis material, thus make the Stability Analysis of Structures of commutator matrix, also the head width size of hook pin can be made to widen simultaneously, strengthen the bond strength between copper bar and commutator matrix, thus effectively improve mechanical strength and the hypervelocity performance of commutator product.

Claims

1. splicing type commutator, many the copper bars that the excircle being included in commutator matrix is evenly laid, described copper bar is injection-compression molding together with commutator matrix, the inner side of described copper bar is provided with hook pin and commutator matrix strong bonded, it is characterized in that: described copper bar has the top vertically extended to direction, commutator upper surface, top dimension reduces formation plug, described hook pin has many along in the short transverse of copper bar, mutually staggers non-interference between the hook pin of adjacent copper bar in the short transverse of copper bar.

2. splicing type commutator according to claim 1, it is characterized in that: the inner side of described copper bar has upper, on the upper side, on the lower side and lower four positions can arrange hook pin along copper bar short transverse, described copper bar divides copper bar A and copper bar B two type, copper bar A and copper bar B is laid staggeredly at the excircle of described commutator matrix, the inner side of described copper bar A is provided with two hook pin in two positions upper and on the lower side, and the inner side of described copper bar B is provided with two hook pin in partially upper and lower two positions.