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CN-224218191-U - Mounting structure of motor carbon brush

CN224218191UCN 224218191 UCN224218191 UCN 224218191UCN-224218191-U

Abstract

The utility model provides a mounting structure of a motor carbon brush, and belongs to the technical field of motors. It has solved the lower problem of current motor carbon brush assembly efficiency. This mounting structure of motor carbon brush, including the base that has the centre bore, a plurality of carbon brush box that encircle the centre bore interval and set up, activity set up in the carbon brush box the carbon brush body and be used for outside top pushing carbon brush body's elastic component, be connected with the brush pigtail that the metal wire made on the carbon brush body, it has the groove of stepping down that is used for dodging the brush pigtail to open along length direction on the lateral wall of carbon brush box, still be equipped with outside protrusion and supply the brush pigtail to hang or winding fixed convex part on the lateral wall of carbon brush box. The carbon brush box is simple in structure and ingenious in design, the convex fixing convex parts are arranged on the carbon brush box, the original carbon braids of the carbon brush are matched with the fixing convex parts to limit the carbon brush, the cost is low, the operation is simple, the operation requirements on assembly staff are low, and the assembly efficiency is high.

Inventors

  • Yin Faqing

Assignees

  • 永康市宝正电机有限公司

Dates

Publication Date
20260508
Application Date
20250520

Claims (7)

  1. 1. The utility model provides a mounting structure of motor carbon brush, includes base (11) that have centre bore (11 a), a plurality of carbon brush box (2) that encircle centre bore (11 a) interval setting, activity set up carbon brush body (31) in carbon brush box (2) and be used for outwards pushing away elastic component (32) of carbon brush body (31), be connected with brush pigtail (33) that metal wire made on carbon brush body (31), a serial communication port, open along length direction on the lateral wall of carbon brush box (2) has groove (2 b) of stepping down that are used for dodging brush pigtail (33), still be equipped with outwards protrusion and confession pigtail (33) on the lateral wall of carbon brush box (2) and hang or winding fixed convex part (21).
  2. 2. The mounting structure of a motor carbon brush according to claim 1, characterized in that the fixing protrusion (21) and the relief groove (2 b) are located on the same side of the carbon brush box (2).
  3. 3. The mounting structure of a motor carbon brush according to claim 1 or 2, characterized in that the fixing protrusion (21) is located at the tail of the relief groove (2 b).
  4. 4. A mounting structure of a motor carbon brush (3) according to claim 3, characterized in that the front end of the relief groove (2 b) is flared.
  5. 5. The mounting structure of the motor carbon brush according to claim 3, wherein the fixing protrusion (21) is formed by folding a side wall of the carbon brush box (2).
  6. 6. The mounting structure of a motor carbon brush according to claim 1 or 2, characterized in that the upper end of the fixing protrusion (21) further has a flange (22) bent toward a side away from the opening of the brush box (2).
  7. 7. The mounting structure of a motor carbon brush according to claim 1 or 2, characterized in that both sides of the fixing projection (21) have inward recessed card wire grooves (21 a).

Description

Mounting structure of motor carbon brush Technical Field The utility model belongs to the technical field of motors, and relates to a fastener, in particular to a mounting structure of a motor carbon brush. Background The motor is a common power output device for converting electric energy into mechanical energy, and mainly comprises a rotor and a stator, wherein a rotating magnetic field is generated by electrifying a coil on the stator and acts on the rotor to form magneto-electric power rotating torque. In order to ensure that continuous power can be supplied to the rotating rotor, it is generally necessary to form a stable current path through the cooperation of carbon brushes with the commutator on the rotor. In order to ensure stable contact between the carbon brush and the commutator, a spring is required to push the carbon brush so that the carbon brush is kept in contact with the commutator. Because during the motor installation, adopt the scheme of installing the carbon brush earlier and then installing the rotor generally, and after the carbon brush is installed, under the effect of spring, the carbon brush has the trend of moving forward and produces the interference to the installation of rotor, consequently need the hand when installing the rotor with the carbon brush back pressure, this is higher to installer's operation requirement, and installation effectiveness is lower. In order to solve the problems, china patent application (application number: 202420140623.8) discloses an auxiliary installation tool for carbon brushes, wherein a strip-shaped hole is formed at an outlet of the carbon brush, the carbon brush is limited by inserting a strip-shaped plate, and the strip-shaped plate is pulled out after the rotor is installed, so that the assembly is completed. However, because during operation, the operator needs to aim at the strip shaped hole with the strip shaped plate and insert, and the strip shaped hole is comparatively narrow and small, leads to inserting comparatively hard and trouble, still has the comparatively low problem of work efficiency, and the size of strip shaped plate is also less in addition, and during operation strip shaped plate also very easily loses, has certain inconvenience. Disclosure of Invention The utility model aims to solve the problems in the prior art and provides a mounting structure of a motor carbon brush. The utility model can be realized through the following technical scheme that the mounting structure of the motor carbon brush comprises a base with a central hole, a plurality of carbon brush boxes which are arranged at intervals around the central hole, a carbon brush body movably arranged in the carbon brush boxes, and an elastic piece for pushing the carbon brush body outwards, wherein the carbon brush body is connected with a brush braid made of metal wires. When the carbon brush is installed, the carbon brush body and the elastic piece are plugged into the carbon brush box together, the brush braid connected with the carbon brush body passes through the abdicating groove to be hung or wound on the fixing convex part, the brush braid is made of a metal wire and has certain rigidity, the brush braid can be hung or wound on the fixing convex part and exert a pulling force opposite to the elastic piece on the carbon brush body, so that the carbon brush body is limited in the carbon brush box, the carbon brush body is prevented from interfering with the center hole of the base, after the rotor is installed, the brush braid is separated from the positioning convex part, the limitation on the carbon brush body can be relieved, the carbon brush body moves towards one side of the center hole under the action of the elastic piece and contacts and abuts against the commutator on the rotor, the operation is simple and convenient, the efficiency is higher, and no additional tool is needed for matching. In the mounting structure of the motor carbon brush, the fixing convex part and the abdication groove are positioned on the same side of the carbon brush box, so that the brush braid extends out of the abdication groove and then is closer to the fixing convex part in distance, and the brush braid is convenient to hang and wind. In the mounting structure of the motor carbon brush, the fixing convex part is positioned at the tail part of the abdicating groove. Therefore, the direction of the tension generated after the brush braid is hung or wound on the fixing convex part and the direction of the tension applied by the elastic piece are basically positioned on the same straight line, and the limit effect on the carbon brush is better. In the mounting structure of the motor carbon brush box, the front end of the abdication groove is in a flaring shape, so that the brush braid is embedded into the abdication groove when the carbon brush is mounted conveniently, and the carbon brush mounting efficiency is higher. In the mounting structure of the motor carbon brush