JPS63117274U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の整流子電動送風機
の断面図、第２図は同ブラシユニツト組立説明用
断面図、第３図は従来の整流子電動送風機のブラ
シユニツト組立説明用断面図である。 ２４……ブラケツト、２６……ブラシユニツト
、３７……異形管、３８……バネ、４０……ブラ
シ、４２……小突起、４３，４４……貫通孔、４
８……小孔。 Fig. 1 is a cross-sectional view of a commutator electric blower according to an embodiment of the present invention, Fig. 2 is a cross-sectional view for explaining the brush unit assembly, and Fig. 3 is a cross-sectional view for explaining the brush unit assembly of a conventional commutator electric blower. It is. 24...Bracket, 26...Brush unit, 37...Deformed tube, 38...Spring, 40...Brush, 42...Small protrusion, 43, 44...Through hole, 4
8...Small hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ステーターと、ローター及びこのローターとと
もに回転するフアンと、ローターに設けられた整
流子と、ローターの整流子側軸受を保持するブラ
ケツトと、このブラケツトの外周に前記整流子に
対向して設けた１対の貫通孔と、この貫通孔に圧
入され、１対のブラシユニツトを構成する異形管
と、その内側で摺動するブラシと、このブラシを
異形管より整流子側へ押し出すバネと、異形管の
反ブラシ側端部よりブラシ後部につながるピツグ
テールとよりなり、異形管内面にブラシを整流子
に当接させた時ブラシ後部近くに位置する小突起
を設け、異形管の前記反ブラシ側端面に小孔を設
けてなる整流子電動送風機。 A stator, a rotor, a fan that rotates together with the rotor, a commutator provided on the rotor, a bracket that holds a commutator side bearing of the rotor, and a pair provided on the outer periphery of the bracket facing the commutator. a through-hole, an irregular-shaped tube that is press-fitted into the through-hole and forms a pair of brush units, a brush that slides inside the through-hole, a spring that pushes this brush from the irregular-shaped tube toward the commutator side, and a It has a pigtail that connects to the rear part of the brush from the end on the anti-brush side, and a small protrusion is provided on the inner surface of the irregularly shaped tube that is located near the rear part of the brush when the brush is brought into contact with the commutator. A commutator electric blower with holes.