CN201577000U

CN201577000U - Motor spring anti-contact commutator

Info

Publication number: CN201577000U
Application number: CN2009202134293U
Authority: CN
Inventors: 夏宇华; 夏威
Original assignee: Kangping Technology (Suzhou) Co Ltd
Priority date: 2009-12-21
Filing date: 2009-12-21
Publication date: 2010-09-08
Anticipated expiration: 2019-12-21

Abstract

The utility model discloses a motor spring anti-contact commutator which comprises a carbon brush box, a carbon brush and a spring, wherein the spring is connected and mounted in the carbon brush, a hooklet is respectively arranged at two ends of the carbon brush box, and two grooves are arranged in the corresponding positions of the carbon brush and the carbon brush box. When a motor runs, the carbon brush is subjected to the constant abrasion, and the motor spring anti-contact commutator can ensure that the carbon brush is in contact with the commutator on a motor through the pressure of the spring; when the carbon brush is abraded to the designed length, the hooklets on the carbon brush box can hook the carbon brush for preventing the continuous abrasion of the carbon brush, thereby solving the possibility of leading the spring of the motor to be in contact with the commutator. The motor spring anti-contact commutator has the advantages of simple structure, low cost, safe use and the like.

Description

The anti-contact of motor spring commutator

Technical field

The utility model relates to a kind of motor, relates in particular to a kind of structure of anti-spring contact commutator.

Background technology

Existing brush motor usually designs by carbon brush length 2/3rds when Life Design, rather than design by the carbon brush length of reality.So when motor reached useful life, motor all was can operate as normal a period of time.But the operator can not operate on request sometimes, stubbornly motor must be used carbon brush always uses up, and just having at this moment that spring and commutator are contacted may.This has also just caused certain potential safety hazard, and spring will cause the motor short circuit with contacting of commutator probably, and electrorheological is big, causes the possibility of burn-down of electric motor, and is very dangerous.

Summary of the invention

At the deficiency that prior art exists, goal of the invention of the present utility model is to provide a kind of structure of anti-spring contact commutator.

Goal of the invention of the present utility model is achieved by the following technical solution:

The anti-contact of motor spring commutator, comprise: brush-box, carbon brush, spring, described spring is mounted in the carbon brush, the brush-box two ends respectively are provided with a hooklet, on carbon brush and the corresponding position of brush-box, two grooves are set, when motor moves, carbon brush constantly is worn, pressure by spring contacts the assurance carbon brush with commutator on the motor, when carbon brush is worn down to the length of design, little hook on the brush-box just can hook carbon brush, and stops carbon brush to continue to be worn, thereby solves the possibility of motor spring contact commutator.The utlity model has simple in structure, cost is low, advantage such as safe in utilization.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model exploded view.

The number in the figure explanation

The 1-brush-box

The 2-carbon brush

The 3-spring

The 4-hook

The 5-groove

Embodiment

How further specify the utility model below in conjunction with accompanying drawing realizes.

As Fig. 1, shown in Figure 2, the utility model is by spring, brush-box, and carbon brush constitutes.The brush-box two ends respectively are provided with a hooklet 4, the two ends of carbon brush 2 respectively are provided with a groove, when motor moves, carbon brush 2 constantly is worn, when carbon brush 2 is worn down to the length of design, little hook on the brush-box 1 just can hook carbon brush 2, and stops carbon brush 2 to continue to be worn, thereby reaches the effect that solves motor spring 3 contact commutators.

During assembling, spring 3, carbon brush 2 are fitted together, the carbon brush that will the be assembled with spring then brush-box of packing into gets final product.

Claims

1. the motor spring is prevented the contact commutator, comprise: brush-box, carbon brush, spring, it is characterized in that: described spring is mounted in the carbon brush, the brush-box two ends respectively are provided with a hooklet, on carbon brush and the corresponding position of brush-box, two grooves are set, reach the effect of motor spring contact commutator.