CN201150018Y

CN201150018Y - Carbon brush closed automobile generator

Info

Publication number: CN201150018Y
Application number: CNU2008200821111U
Authority: CN
Inventors: 徐广�; 袁敦歌
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-11
Filing date: 2008-01-11
Publication date: 2008-11-12
Anticipated expiration: 2018-01-11

Abstract

The utility model discloses a carbon brush closed type automobile generator, which comprises a rotor assembly (1), an end cover (7) and a dustproof cover (10), wherein a bearing (3) and a collecting ring (2) are arranged on a rotating shaft, a lockable bearing (3), the collecting ring (2) and a bearing collecting ring sleeve (4) on the end surface of the rotating shaft are all arranged between the bearing (3) and the end cover (7), a rectangular window (4.1) is arranged on the bearing collecting ring sleeve (4), a rubber sealing gasket (6) is arranged on the rectangular window (4.1), a carbon brush assembly (5) penetrates through the inner hole of the rubber sealing gasket (6) and is inserted on the rectangular window (4.1), and the carbon brush is matched with the collecting ring (2); a rectangular concave grooves (6.1) matched with the rectangular window (4.1) is arranged on the rubber sealing gasket (6). The default that the mud-water can splash on the collecting ring (2) and the carbon brush assembly (5) can be overcome after the structure is adopted, and the automobile generator has the advantages of simple and compact structure, convenient installment, secure and reliable work, and good water and mud proof and dustproof effects.

Description

Carbon brush closed automotive generator

Technical field

The utility model relates to a kind of automobile current generator, the automobile current generator that uses on particularly a kind of minicar.

Background technology

It is the requisite vitals of minicar that the brush automobile current generator is arranged, the general inner-cooled structure that adopts, dispel the heat by the fan blade 1.2 that is installed in rotor 1.1 two ends, the motor two ends are unenclosed construction, its maximum defective is that muddy water can splash on collector ring 2 and the brush 5, cause carbon brush stuck or loose contact, cause the automobile current generator cisco unity malfunction by mud.In order to address the above problem, manufacturer has taked some anti-muddy water measures in design, existing generator mainly is made up of rotor assembly 1, current collection 2, bearing 3, bearing holder (housing, cover) 11, brush 5, end cap 7, adjuster 8, rectifier bridge 9, dust cover 12, as shown in Figure 1 and Figure 2, waterproof jacket 12.1 is set on dust cover 12, allows waterproof jacket 12.1 cover the carbon brush of collector ring 2 and brush 5; But in use still have the following disadvantages: the one, for the ease of installing, just leave the gap between waterproof jacket 12.1 and the brush 5 inevitably, its radially monolateral gap is 0.25mm, end play is 1.6mm, gap between waterproof jacket 12.1 and the bearing holder (housing, cover) 11 is 8.2mm more greatly, Wai Jie muddy water and dust will be invaded on the carbon brush and carbon brush holder of collector ring 2 and brush 5 at leisure like this, will certainly cause carbon brush return decreased performance and carbon brush and collector ring 2 loose contacts, cause the generator cisco unity malfunction; The 2nd, bearing 3 also can be subjected to the invasion of extraneous muddy water and dust, cause bearing 3 lubricant effects poor, rotate dumb, quick abrasion; The 3rd, manufacturer is in order to strengthen the heat dissipation ventilation hole area, all the ventilation hole on the dust cover 12 is made radially strip, the width of macropore 12.3 ends is 12mm, the width of aperture 12.2 ends is 8mm, as shown in Figure 3, and like this, no matter be in assembling process, still in the maintenance cleaning process, all be easy to Screw or foreign material are fallen into generator inside, generator be short-circuited burn out.For this reason, many relevant manufacturing enterprises and knowledgeable people have carried out continuous research and development, but do not have ideal method to solve the problems referred to above so far as yet.

Summary of the invention

For overcoming the above-mentioned defective that existing automobile current generator exists, the purpose of this utility model provides a kind of muddy water simple and compact for structure, easy for installation, safe and reliable, anti-and the effective carbon brush closed automotive generator of dust.

The technical scheme that its technical problem that solves the utility model adopts, it comprises rotor assembly, end cap, dust cover, bearing and collector ring are installed in the rotating shaft, adjuster and rectifier bridge are installed on the end cap, be provided with the bearing current collection ring set that can seal bearing, collector ring and rotating shaft end face between described bearing and the end cap, the bearing collector ring puts and is provided with the rectangle window, the rectangle window is provided with rubber gasket, the carbon brush holder of brush passes the rubber gasket endoporus and is inserted on the rectangle window, and carbon brush matches with collector ring.

Described rubber gasket is provided with the rectangular recess that is complementary with rectangle window chimb.

Described dust cover is provided with annular vent.The width of described annular vent is 4mm.

After adopting said structure, following advantage is arranged: the one, the carbon brush holder of brush passes the rubber gasket endoporus and is inserted on the rectangle window, bearing, collector ring, carbon brush are fully enclosed in the bearing current collection ring set, constitute sealed whole body, on the carbon brush and carbon brush holder, collector ring and bearing that extraneous muddy water and dust just can't be invaded brush, make and remain good contact performance between carbon brush and the collector ring, be subjected to muddy water to influence the shortcoming of cisco unity malfunction thereby solved generator, and can prolong the useful life of carbon brush greatly; The 2nd, bearing is because after not being subjected to the muddy water and dust invasion in the external world, bearing lubrication is effective, rotation is flexible, wearing and tearing are little; The 3rd, the ventilation hole of dust cover can avoid Screw or foreign material to fall into the generation that generator inside causes damage after improving, and profile is more elegant in appearance.

Description of drawings

Fig. 1 is existing automobile current generator decomposing schematic representation.

Fig. 2 is existing automobile current generator fit structure schematic diagram.

Fig. 3 is existing automobile current generator dust cover structure schematic diagram.

Fig. 4 is the utility model STRUCTURE DECOMPOSITION schematic diagram.

Fig. 5 is the utility model fit structure schematic diagram.

Fig. 6 is the utility model bearing collector ring nested structure schematic diagram.

Fig. 7 is the utility model rubber gasket structural representation.

Fig. 8 is that the utility model brush cooperates schematic diagram with bearing current collection ring set.

Fig. 9 is the utility model dust cover structure schematic diagram.

Embodiment

Fig. 4 is to shown in Figure 9, specific embodiments for the utility model carbon brush closed automotive generator, it comprises rotor assembly 1, end cap 7, dust cover 10, fan blade 1.2 is installed in the two ends of rotor 1.1, bearing 3 and collector ring 2 are installed in the rotating shaft, adjuster 8 and rectifier bridge 9 are installed on the end cap 7, be provided with between described bearing 3 and the end cap 7 and can seal bearing 3, the bearing current collection ring set 4 of collector ring 2 and rotating shaft end face, bearing current collection ring set 4 is fixed by end cap 7 and bearing 3 outer rings, bearing 3, collector ring 2 is fully enclosed in the bearing current collection ring set 4, bearing current collection ring set 4 is provided with rectangle window 4.1, rectangle window 4.1 is provided with rubber gasket 6, rubber gasket 6 is provided with the rectangular recess 6.1 that is complementary with rectangle window 4.1 chimbs, the carbon brush holder of brush 5 passes rubber gasket 6 endoporus and is inserted on the rectangle window 4.1, rubber gasket 6 has played the sealing function between brush 5 and the rectangle window 4.1, carbon brush matches with collector ring 2, like this, Wai Jie muddy water and dust just can't be invaded the carbon brush and the carbon brush holder of brush 5, on collector ring 2 and the bearing 3; Guarantee to remain the excellent contact performance between carbon brush and the collector ring, be subjected to muddy water to influence the shortcoming of cisco unity malfunction thereby solved generator.

Described dust cover 10 is provided with annular vent 10.1; The width of described annular vent 10.1 is 4m m.So just can avoid Screw or foreign material to fall into generator inside effectively, dust cover 10 profiles are more elegant in appearance.

Claims

1, a kind of carbon brush closed automotive generator, comprise rotor assembly (1), end cap (7), dust cover (10), bearing (3) and collector ring (2) are installed in the rotating shaft, adjuster (8) and rectifier bridge (9) are installed on the end cap (7), it is characterized in that: be provided with between described bearing (3) and the end cap (7) and can seal bearing (3), the bearing current collection ring set (4) of collector ring (2) and rotating shaft end face, bearing current collection ring set (4) is provided with rectangle window (4.1), rectangle window (4.1) is provided with rubber gasket (6), the carbon brush holder of brush (5) passes rubber gasket (6) endoporus and is inserted on the rectangle window (4.1), and carbon brush matches with collector ring (2).

2, carbon brush closed automotive generator according to claim 1 is characterized in that: described rubber gasket (6) is provided with the rectangular recess (6.1) that is complementary with rectangle window (4.1) chimb.

3, carbon brush closed automotive generator according to claim 1 and 2, it is characterized in that: described dust cover (10) is provided with annular vent (10.1).

4, carbon brush closed automotive generator according to claim 3, it is characterized in that: the width of described annular vent (10.1) is 4mm.