CN201018333Y

CN201018333Y - Carbon brush assembly

Info

Publication number: CN201018333Y
Application number: CNU200720048673XU
Authority: CN
Inventors: 魏新民; 廖启国
Original assignee: Guangdong Welling Motor Manufacturing Co Ltd
Current assignee: Guangdong Powerful Motor Co., Ltd.
Priority date: 2007-02-09
Filing date: 2007-02-09
Publication date: 2008-02-06
Anticipated expiration: 2017-02-09

Abstract

The utility model relates to a carbon brush component, which comprises a carbon brush framework and a conducting strip in the carbon brush framework. One end of the conducting strip has an extension of terminal clamp connected with external power source, and the terminal clamp is higher than the carbon brush framework. The utility model has simple and reasonable structure. Since the conducting strip is integrated with the terminal clamp, the external power source is connected with the motor body by the shortest circuit, thus lowering circuit resistance and ensuring that the external power source can provide electricity for motors continuously and reliably. The carbon brush framework is made of PBT plastic added with a given proportion of glass fiber, and has the high mechanic intensity. When cooled or heated in certain environment, the carbon brush framework does not have flaws like melting, distortion, cracking, and embrittlement. According to different requirements of motors, the carbon brush framework is provided with two brushes or above. Compared with the prior art, the utility model can save materials such as power line, terminal clamp, terminal, and connector, and also assembly time. Meanwhile, the concise structure of motors also saves assembly space and lowers motor cost effectively.

Description

Carbon brush component

Technical field

The utility model relates to direct current machine, particularly a kind of carbon brush component that is used for direct current machine.

Background technology

In the prior art, direct current machine is when linking to each other with external power, usually by after two power lines and the conducting strip welding, draw motor by terminal clamp, mix terminal, connector (or other connector) for power line again, link to each other with external power then, make external power can be the motor normal power supply.Above structure will be used materials such as power line, terminal clamp, terminal, connector, to increase the power line wire stripping on the technology, with conducting strip welding, pass terminal clamp, beat process such as terminal, the time-consuming material that takes of this structure has strengthened the space of assembling these motor needs simultaneously.

China Patent No. 200520122361.X discloses a kind of motor bonnet, include: a cover T-Ring, two guide-joining plates, two carbon brush, two carbon brush retainers, two power lines and two cappings, two corresponding sections of this cover T-Ring are formed with a containing hole respectively, respectively this containing hole is the inside and outside ring wall that runs through this cover T-Ring, and respectively is formed with a storage tank on the sidewall of this containing hole; One end of this two guide-joining plate is to be positioned at this storage tank, then protruding this cover T-Ring inwall that is exposed to of the other end; This two carbon brush retainer has a spring, a fitting and a lead respectively, and an end of this two spring and this two lead is to connect this two fitting respectively, and the other end of this two spring and this two lead then is connected in this two carbon brush; This two power line is to be connected to this two guide-joining plate; This two capping is to be engaged in respectively on the outer end opening edge of this containing hole.Above-mentioned lead is mixed terminal, connector after remaining and drawing motor by terminal clamp again, the structure that links to each other with external power at last.Because structural reason makes the motor that adopts this carbon brush holder need bigger space.

The utility model content

The purpose of this utility model be intended to provide a kind of simple and reasonable, cost of manufacture is low, save the motor space, reduce line resistance, guarantee the carbon brush component that external power can continue, reliably power for motor, to overcome weak point of the prior art.

A kind of carbon brush component by this purpose design comprises the carbon brush skeleton and places the intraskeletal conducting strip of carbon brush that its architectural feature is that described conducting strip one end extends the terminal clamp that directly joins with external power, and the terminal clamp evagination is in the carbon brush skeleton.

Described conducting strip is made up of left conducting strip and right conducting strip.Conducting strip is sickle shaped, and the inboard is or/and arranged outside has profile of tooth; Left side conducting strip and right conducting strip are combined into the opening ring-type, and the handle end of reaping hook is a terminal clamp, and the conducting strip side-looking is similar Z-shaped.

Described carbon brush skeleton is circular or squarely to cooperate with electric motor end cap; Shape after the left and right conducting strip combination and the acute skeleton profile of carbon are complementary.The carbon brush skeleton is provided with at least two carbon brush jacks.

The utility model is simple and reasonable, because conducting strip and terminal clamp are integral type, make external power pass through the shortest circuit and links to each other with motor body, reduces line resistance, guarantees that external power can continue, reliably be the motor power supply.The carbon brush skeleton is made for the PBT plastics add a certain proportion of glass fibre, has mechanical strength preferably, and catches a cold, do not have during thermal shock phenomenons such as fusing, distortion, cracking, embrittlement occur under the certain environment condition.The carbon brush skeleton can be placed two or more brushes according to the different requirements of motor.This product has been saved materials such as power line, terminal clamp, terminal, connector compared to existing technology, has saved installation time, makes electric machine structure compacter simultaneously, has saved assembly space, effectively reduces motor cost.

Description of drawings

Fig. 1 is the front view of the utility model one embodiment.

Fig. 2 looks partial sectional view for the left side of Fig. 1.

Fig. 3 is a carbon brush skeleton front view among Fig. 1.

Fig. 4 is the left view of Fig. 3.

Fig. 5 is the front view of left conducting strip.

Fig. 6 is the front view of right conducting strip.

Fig. 7 is the left view of Fig. 5.

Fig. 8 is the left view of Fig. 6.

Fig. 9 is left and right conducting strip assembled state schematic diagram.

Embodiment

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

Referring to Fig. 1-Fig. 4, this carbon brush component comprises circular carbon brush skeleton 1 and places left conducting strip 3 and right conducting strip 2 in the carbon brush skeleton 1, and left and right conducting strip is respectively arranged with that terminal clamp 3.1,2.1 and external power directly join.Circular carbon brush skeleton 1 uniform four jacks 1.1 of placing brush.Referring to Fig. 5-Fig. 9, left conducting strip 3 is sickle shaped with right conducting strip 2, and the inboard is or/and arranged outside has profile of tooth; Left and right conducting strip is combined into the opening ring-type, and the handle end of reaping hook is a terminal clamp 3.1,2.1.

According to the shape of motor housing, the carbon brush skeleton also can be designed to square.Different according to the external power connected mode, conducting strip can be designed to other different shape.

Claims

1. a carbon brush component comprises carbon brush skeleton (1) and places the intraskeletal conducting strip of carbon brush, it is characterized in that described conducting strip one end extends the terminal clamp (2.1,3.1) that directly joins with external power, and the terminal clamp evagination is in the carbon brush skeleton.

2. carbon brush component according to claim 1 is characterized in that described conducting strip is made up of left conducting strip (3) and right conducting strip (2).

3. carbon brush component according to claim 2 is characterized in that described conducting strip is sickle shaped, and the inboard is or/and arranged outside has profile of tooth; Left side conducting strip and right conducting strip are combined into the opening ring-type, and the handle end of reaping hook is a terminal clamp, and the conducting strip side-looking is similar Z-shaped.

4. carbon brush component according to claim 2 is characterized in that described carbon brush skeleton is for circular or squarely cooperate with electric motor end cap; Shape and carbon brush skeleton profile after the left and right conducting strip combination are complementary.

5. carbon brush component according to claim 1 is characterized in that described carbon brush skeleton is provided with at least two carbon brush jacks (1.1).

6. carbon brush component according to claim 1 is characterized in that described carbon brush skeleton makes for the PBT plastics add a certain proportion of glass fibre.