MOTOR WITH SPEED REDUCTION MECHANISM

• Main Authors: KAWASHIMA YOSHICHIKA, TOKISAKI TEPPEI, KOJIMA NAOKI
• Format: Patent
• Language: English; Japanese
• Published: 11.10.2018
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

PROBLEM TO BE SOLVED: To provide a motor with a speed reduction mechanism, capable of coping with miniaturization and high output without decreasing a diameter dimension of a conductive wire and achieving a long life of a brush while suppressing noise of the motor.SOLUTION: A brush 55 is formed of a basal end part 55a and a front end part 55b. A pigtail PG is electrically connected to one side surface of the basal end part 55a. The front end part 55b is formed so as to have a narrower width from both side surfaces in a rotation direction of an armature shaft 24 of the basal end part 55a. Moreover, in a brush holder 54, a pair of basal end side support parts 54e and a pair of front end side support parts 54f are provided, and the front end part 55b and the basal end part 55a of the brush 55 are made to be supported from both sides in the rotation direction of the armature shaft 24, respectively.SELECTED DRAWING: Figure 6 【課題】導電線の直径寸法を小さくせずに小型化や高出力化に対応でき、かつ騒音を抑制しつつブラシの長寿命化を図る。【解決手段】ブラシ５５を、基端部５５ａと先端部５５ｂとから形成し、基端部５５ａの一側面にピグテールＰＧを電気的に接続し、先端部５５ｂを基端部５５ａのアーマチュア軸２４の回転方向に沿う両側面から幅狭となるよう形成した。また、ブラシホルダ５４に一対の基端側支持部５４ｅおよび一対の先端側支持部５４ｆを設け、ブラシ５５の先端部５５ｂおよび基端部５５ａを、アーマチュア軸２４の回転方向に沿う両側からそれぞれ支持するようにした。【選択図】図６