CN102684354A - Vehicle generator brush end cover and manufacture method thereof - Google Patents

Abstract

A brush end cover for a vehicle generator, comprising an end cover body, a shaft hole, a heat dissipation hole, and a hanging angle 5, and a boss and a hanging angle hole are arranged at the end of the hanging angle, and the heat dissipation holes are multiple and arc-shaped , a counterbore is provided on the cooling hole, and the boss is oval or oblong. A method for manufacturing the brush end cover of a vehicle generator, the steps are as follows: casting the brush end cover blank; designing the position of the regulator and the rectifier bridge; drilling the counterbore; calculating the center distance between the hanging angle hole and the shaft hole; Hanging corner hole. The advantages are: 1. The positions of the counterbore and the hanging corner hole can be determined according to the position of the protrusion of the engine and the specific position of the vehicle generator in the vehicle body, which greatly reduces the production cost, and the overall processing procedure is simpler. 2. Since the diameter of the heat dissipation hole is smaller than that of the counterbore, the counterbore can be arranged above the heat dissipation hole, which increases the area of the heat dissipation hole, improves the heat dissipation capacity of the generator, and reduces the weight of the vehicle generator.

Description

Motor generator brush end cover for vehicle and manufacturing method thereof

technical field

The invention relates to a motor brush end cover for a vehicle and a manufacturing method thereof.

Background technique

The vehicle generator consists of a pulley, a drive end cover assembly, a rotor assembly, a stator assembly, a regulator, a rectifier bridge, a rear case and a brush end cover. There are shaft holes, heat dissipation holes and threaded holes for installing rectifier bridges and regulators on the brush end cover. There is a hanging angle on one side of the brush end cover, and a circular boss at the end of the hanging angle. A hanging corner hole is arranged in the center of the boss. Since the shapes of engines produced by various manufacturers are very different, in order to prevent the protrusions on the engine, the outlet end of the generator, and the outlet end of the regulator from interfering with each other, the threaded holes on the vehicle generator used with different engines The position of the bracket, the center distance between the hanging angle hole and the shaft hole shall be determined according to the position of the protrusion on the engine and the specific installation position of the vehicle generator in the vehicle body. Therefore, the molds used to cast the brush end covers of automotive generators used with different engines are also different. However, the process of designing and making molds is cumbersome, time-consuming and labor-intensive, and the cost is high, which increases the difficulty of processing the brush end cover of the vehicle generator and increases the processing cost.

Contents of the invention

The technical problem to be solved by the present invention is to provide an automotive generator brush end cover with wide application range, low processing difficulty and low processing cost and its manufacturing method.

The present invention is achieved like this:

A brush end cover for a vehicle generator, comprising an end cover body, on which a shaft hole and a cooling hole 3 are arranged, on one side of the end cover body a hanging angle 5 is provided, and a boss is arranged on the end of the hanging angle 6. There are hanging corner holes on the boss. The special feature is that the heat dissipation holes are multiple and arc-shaped. The diameter of the hole is smaller than that of the counterbore, and the boss is oval or oblong.

The heat dissipation holes are arranged to form multiple rows of concentric rings, so as to ensure the maximum heat dissipation capacity in a limited space.

A method for manufacturing a motor brush end cover for a vehicle, which is special in that the specific steps are as follows:

1) Use the mold to cast the blank of the brush end cover;

2) Measure the position of the protrusion of the engine used with the generator, and design the position of the regulator and rectifier bridge so that the protrusion on the engine, the outlet end of the generator, and the outlet end of the regulator do not interfere with each other;

3) According to the position of the regulator and the rectifier bridge, drill a sink hole on the inner side of the end cover body on the cooling hole;

4) According to the installation position of the automobile generator in the automobile, calculate the center distance between the hanging angle hole and the shaft hole;

5) According to the calculated center distance between the hanging corner hole and the shaft hole, drill the hanging corner hole on the boss.

The beneficial effects of the present invention are:

1. Since there are arc-shaped heat dissipation holes on the mold body, and the shape of the boss is oblong or elliptical, the positions of the counterbore and hanging corner holes can be determined according to the position of the protrusion of the engine and the position of the vehicle generator. Therefore, the brush end cover of the generator that can be used with different engines can be processed without changing the mold, compared with the method of using different molds for different engines to make the brush end cover , greatly reducing the production cost, and the overall processing procedure is simpler.

2. Since the diameter of the heat dissipation hole is smaller than that of the counterbore, the counterbore can be arranged above the heat dissipation hole, which increases the area of the heat dissipation hole, improves the heat dissipation capacity of the generator, and reduces the weight of the vehicle generator.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the back view of Fig. 1;

Fig. 3 is the schematic diagram of counterbore in Fig. 1;

Fig. 4 is a schematic structural view of the blank of the brush end cover.

In the figure: end cover body 1, shaft hole 2, cooling hole 3, counterbore 4, hanging angle 5, boss 6, hanging angle hole 7.

Detailed ways

As shown in FIGS. 1 to 3 , the motor brush end cover for a vehicle includes an end cover body 1 , on which a shaft hole 2 and an arc-shaped cooling hole 3 are provided. The heat dissipation holes 3 are multiple and arranged to form multiple rows of concentric rings. In this embodiment, eight heat dissipation holes 3 are taken as an example, and each group of four forms two rows of concentric rings. A counterbore 4 is provided on the inner end surface of the end cover body 1 corresponding to the cooling hole 3 , and the diameter of the cooling hole 3 is smaller than the diameter of the counterbore 4 . One side of the end cover body 1 is provided with a hanging angle 5, and an oval (or oblong) boss 6 is arranged at the end of the hanging angle 5. The hanging angle 5 is connected with the boss 6 and the hanging angle 5. It is integrated with the end cover body 1 respectively, and a hanging corner hole 7 is provided on the boss 6 . The heat dissipation holes 3 and the hanging corner holes 7 are through holes.

A method for manufacturing a motor brush end cover for a vehicle, the specific steps are as follows:

1) As shown in Figure 4, use the mold to cast the blank of the brush end cover. The blank of the brush end cover is provided with a shaft hole 2, a heat dissipation hole 3, and a hanging angle 5, and a boss 6 is provided at the end of the hanging angle. The cooling holes 3 are multiple and arc-shaped, and the boss 6 is oval or oblong.

2) Measure the position of the protrusion of the engine used with the generator, and design the position of the pre-installed regulator and rectifier bridge so that the protrusion on the engine, the outlet end of the generator, and the outlet end of the regulator are mutually connected. Non-interference (i.e. staggered positions).

3) According to the position of the regulator and the rectifier bridge, drill the counterbore 4 on the inner end surface of the end cover body 1 corresponding to the position of the cooling hole 3.

4) According to the installation position of the automobile alternator in the automobile, calculate the center distance between the hanging corner hole 7 and the shaft hole 2, so as to ensure that the automobile alternator does not interfere with the adjacent parts in the automobile.

5) Drill the corner hole 7 on the boss 6 according to the calculated center distance between the corner hole 7 and the shaft hole 2 .

When assembling, place the rectifier bridge and the regulator on the outer end surface of the end cover body 1, place bolts in the counterbore 4 located on the inner end surface of the end cover body 1, and the bolts pass through the cooling holes 3 and extend into the installation of the rectifier bridge and regulator In the hole, fix the rectifier bridge and regulator with nuts.

Claims (3)

1. an alternator for vehicle brush cover comprises the end cap body, on the end cap body, is provided with axis hole and louvre; Side at the end cap body is provided with the extension angle, and end is provided with boss at the extension angle, on boss, is provided with the Gua Jiao hole; It is characterized in that: described louvre is a plurality of and is arc; On louvre, be positioned at end cap body inboard and be provided with counterbore, the diameter of described louvre is less than the diameter of described counterbore, and described boss is ellipse or Long Circle.

2. alternator for vehicle brush cover according to claim 1 is characterized in that: described louvre is arranged and is formed the multiple row concentric ring.

3. the manufacturing approach of an alternator for vehicle brush cover is characterized in that concrete steps are following:

1) utilize die casting to go out the brush cover blank;

2) measure the position of the convexity of the engine that uses with this generator collocation, the position of design adjuster, rectifier bridge makes mutually noninterfere between the leading-out terminal of leading-out terminal, adjuster of convexity on the engine, generator;

3), on louvre, be positioned at end cap body inboard and get out counterbore according to the position of adjuster, rectifier bridge;

4), calculate the centre-to-centre spacing of Gua Jiao hole and axis hole according to the installation site of electric generators for automobile in automobile;

5) according to calculate Gua Jiao hole and the centre-to-centre spacing of axis hole on boss, get out the Gua Jiao hole.

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