JPS61185255U

JPS61185255U -

Info

Publication number: JPS61185255U
Application number: JP6654785U
Authority: JP
Priority date: 1985-05-07
Filing date: 1985-05-07
Publication date: 1986-11-19

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例に係るモータ冷却
構造を示す断面図、第２図は第１図の―線に
沿う断面図、第３図はこの考案の要部拡大斜視図
、第４図は第３図の―線に沿う断面図、第５
図はこの考案の他の実施例に係るモータ冷却構造
を示す部分断面図、第６図はこの考案の他の実施
例に係る要部拡大斜視図、第７図は他の実施例に
係る要部拡大断面図、第８図は従来のモータ冷却
構造を示す断面図である。Ｍ……モータ、４……フアン、５……冷却パイ
プ、６，３４……モータケーシング、１２，３７
……ロータ、１３，４１……マグネツト、１４，
３５……コンミユテータ、１６，３９……ブラシ
ホルダ、１８，３８……ブラシ、１８……貫通孔
、１８ｂ，３８ａ……ブラシの先端側、１８ｃ，
３８ｂ……ブラシの終端側、２０，４２……冷却
手段、３９ａ……膨出通路。 Fig. 1 is a sectional view showing a motor cooling structure according to an embodiment of this invention, Fig. 2 is a sectional view taken along the line - in Fig. 1, Fig. 3 is an enlarged perspective view of the main part of this invention, and Fig. 4 The figure is a cross-sectional view taken along the - line in Figure 3.
The figure is a partial cross-sectional view showing a motor cooling structure according to another embodiment of this invention, FIG. 6 is an enlarged perspective view of main parts according to another embodiment of this invention, and FIG. FIG. 8 is a partially enlarged sectional view showing a conventional motor cooling structure. M... Motor, 4... Fan, 5... Cooling pipe, 6, 34... Motor casing, 12, 37
... Rotor, 13, 41 ... Magnet, 14,
35... Commutator, 16, 39... Brush holder, 18, 38... Brush, 18... Through hole, 18b, 38a... Tip side of brush, 18c,
38b...Brush end side, 20, 42...Cooling means, 39a...Bulging passage.

Claims

[Scope of claim for utility model registration] 1. Magnet 1 inside motor casing 6, 34
3, 41 and rotors 12, 37 are disposed, and commutators 14, 3 are disposed at the ends of the rotors 12, 37.
In this motor, the tips of brushes 18, 38, which are slidably provided in brush holders 16, 39, are brought into elastic contact with commutators 14, 37, and the insides of the brushes and/or cooling means 20 for flowing cooling air along the outer peripheral surface;
A cooling structure for a motor, characterized in that a cooling structure for a motor is provided. 2. The motor cooling structure according to claim 1, wherein the brushes 18, 38 are formed with through holes 18a through which the cooling air flows. 3. The motor cooling structure according to claim 1, item 2, wherein the cooling means is constructed by connecting a cooling pipe 5 to the through hole 18a. 4. The motor cooling structure according to claim 1, item 2, wherein the cooling means is configured by connecting the cooling pipe 5 to the brush holders 16, 39.