Automobile generator end cover

Abstract

The utility model discloses an automobile generator end cover which comprises a cover body, a step groove is formed in the open end, connected with a generator shell, of the cover body, a first sealing assembly is arranged in the step groove in an attached mode, and the first sealing assembly comprises a first sealing ring and a second sealing ring. And the first sealing ring and the second sealing ring are vertically and fixedly connected. According to the end cover, the cover body, the step groove, the first sealing assembly, the annular pressing plate, the second sealing assembly and the mounting plate are arranged, when the end cover is fixedly connected with a generator shell through the mounting plate, the side edge of the shell can extrude the annular pressing plate, and then the annular pressing plate extrudes a first sealing ring of the first sealing assembly; air in the first sealing ring enters the second sealing ring, so that the second sealing ring expands, the sealing performance of the joint of the cover body and the generator shell can be greatly improved through cooperation with the second sealing assembly, and the waterproof performance of the generator is better.

Description

Technical Field

[0001] The utility model relates to the technical field of generators, in particular to an end cover of an automobile generator. Background Art

[0002] The automobile generator is the main power source of the automobile. Its function is to supply power to all electrical devices and charge the battery when the engine is running normally. The generator end cover is generally divided into a front cover and a rear cover, which are cast with aluminum alloy. The composition of the generator end cover is also determined by the engine fixing and mounting generator bracket suitable for the corresponding vehicle model.

[0003] Unlike ordinary generators, the working environment of automobile generators is quite special. When a car is driving on the road, it may encounter water accumulation or heavy rain, and the water splashed by the wheels will enter the interior of the engine compartment, which requires the automobile generator to have a good waterproof effect. However, in order to ensure good heat dissipation, the current automobile generators will open heat dissipation holes on the end cover, and then set waterproof materials near the heat dissipation holes inside the end cover, but the waterproof level of this structure is not high. Therefore, the utility model proposes an automobile generator end cover. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides an automobile generator end cover.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automobile generator end cover, including a cover body, an open end of the cover body connected to the generator housing is provided with a step groove, a first sealing component is fitted inside the step groove, the first sealing component includes a first sealing ring and a second sealing ring, and the first sealing ring and the second sealing ring are vertically fixedly connected, an annular pressure plate is fitted on the surface of the first sealing ring away from the step groove, a second sealing component is provided at the open end of the cover body and located on the outside of the step groove, a plurality of heat sinks are penetrated and fixedly connected to the side wall of the cover body, and a plurality of through holes are provided at one end of the outer side of the cover body.

[0006] Furthermore, a plurality of mounting plates are fixedly connected to the side edge of the open end of the cover body, and a mounting hole is formed in the middle of each mounting plate.

[0007] Furthermore, the first sealing ring and the second sealing ring are both hollow in design, and a channel is provided between the first sealing ring and the second sealing ring.

[0008] Furthermore, two symmetrical positioning tubes are fixedly connected to the inner wall of the cover body, and a positioning rod inserted into the positioning tube is fixedly connected to the side of the annular pressure plate close to the cover body.

[0009] Furthermore, a rubber sleeve is fixedly connected to the outer side wall of the positioning rod.

[0010] Furthermore, the second sealing assembly includes an annular groove, and a third sealing ring is clamped inside the annular groove.

[0011] Furthermore, an axial hole is opened in the middle of the cover body, a sealed bearing is fixedly connected to the inner wall of the axial hole, and the inner ring of the sealed bearing is fixedly connected to the rotor shaft of the generator.

[0012] Beneficial effects of the utility model:

[0013] 1. When the utility model is in use, the automobile generator end cover is provided with a cover body, a step groove, a first sealing assembly, an annular pressure plate, a second sealing assembly and a mounting plate. When the end cover is fixedly connected to the generator housing through the mounting plate, the side of the housing will squeeze the annular pressure plate, and the annular pressure plate will squeeze the first sealing ring of the first sealing assembly, so that the air in the first sealing ring enters the second sealing ring, thereby expanding the second sealing ring. The second sealing assembly can greatly increase the sealing performance of the connection between the cover body and the generator housing, so that the waterproof performance of the generator is better.

[0014] 2. When the utility model is in use, the automobile generator end cover is provided with a plurality of heat sinks penetrating the cover body, and each heat sink is provided with a plurality of through holes, so that a good heat dissipation effect can be maintained while ensuring good sealing of the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 : The front view of the utility model;

[0017] Figure 2 : A side sectional view of the utility model;

[0018] Figure 3 :The utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 : A partial stereogram of the utility model.

[0020] The reference numerals are as follows:

[0021] 1. Cover body; 2. Step groove; 3. First sealing assembly; 31. First sealing ring; 32. Second sealing ring; 33. Channel; 4. Annular pressure plate; 5. Positioning rod; 6. Positioning tube; 7. Second sealing assembly; 71. Annular groove; 72. Third sealing ring; 8. Shaft hole; 9. Sealed bearing; 10. Heat sink; 11. Perforation; 12. Mounting plate; 13. Mounting hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 4 As shown, it relates to an automobile generator end cover, including a cover body 1, an open end of the cover body 1 connected to the generator housing is provided with a step groove 2, a first sealing component 3 is fitted inside the step groove 2, the first sealing component 3 includes a first sealing ring 31 and a second sealing ring 32, and the first sealing ring 31 and the second sealing ring 32 are vertically fixedly connected, an annular pressure plate 4 is fitted on the surface of the first sealing ring 31 away from the step groove 2, a second sealing component 7 is provided at the open end of the cover body 1 and located on the outside of the step groove 2, a plurality of heat sinks 10 are penetrated and fixedly connected to the side wall of the cover body 1, and a plurality of through holes 11 are provided at one end of the outer side of the cover body 1.

[0024] like Figure 1-Figure 2 As shown, a plurality of mounting plates 12 are fixedly connected to the side edge of the open end of the cover body 1 , and a mounting hole 13 is formed in the middle of each mounting plate 12 .

[0025] The mounting plate 12 can be butted against the connection hole on the generator housing through the mounting hole 13 , thereby achieving a fixed connection between the cover body 1 and the generator housing.

[0026] like Figure 2-Figure 3 As shown, the first sealing ring 31 and the second sealing ring 32 are both hollow in design, and a channel 33 is opened between the first sealing ring 31 and the second sealing ring 32 .

[0027] When the cover body 1 is fixedly connected to the generator housing, the generator housing will squeeze the annular pressure plate 4, and the annular pressure plate 4 will squeeze the first sealing ring 31, so that the air in the first sealing ring 31 enters the second sealing ring 32, so that the second sealing ring 32 expands at the connection between the cover body 1 and the generator housing, thereby increasing the sealing of the connection between the generator housing and the cover body 1.

[0028] like Figure 2-Figure 3As shown, two symmetrical positioning tubes 6 are fixedly connected to the inner wall of the cover body 1 , and a positioning rod 5 inserted into the positioning tube 6 is fixedly connected to the side of the annular pressure plate 4 close to the cover body 1 .

[0029] When the annular pressing plate 4 is installed, the positioning rod 5 can be inserted into the positioning tube 6 to facilitate positioning of the annular pressing plate 4 .

[0030] like Figure 3 As shown, a rubber sleeve is fixedly connected to the outer wall of the positioning rod 5. The rubber sleeve can increase the friction between the positioning rod 5 and the positioning tube 6, so that when the annular pressing plate 4 is installed, the annular pressing plate 4 is not easy to be separated from the inside of the cover body 1.

[0031] like Figure 3 As shown, the second sealing assembly 7 includes an annular groove 71, and a third sealing ring 72 is clamped inside the annular groove 71. In this embodiment, the third sealing ring 72 is a water-swellable rubber strip, which can further increase the sealing performance of the connection between the cover body 1 and the generator housing.

[0032] like Figure 1 and Figure 2 As shown, a shaft hole 8 is opened in the middle of the cover body 1, and a sealed bearing 9 is fixedly connected to the inner wall of the shaft hole 8, and the inner ring of the sealed bearing 9 is fixedly connected to the rotor shaft of the generator. By providing the sealed bearing 9, the sealing of the connection between the generator rotor shaft and the cover body 1 can be ensured.

[0033] Working principle: When installing the cover 1 with the generator housing, first insert the first sealing ring 31 and the second sealing ring 32 into the step groove 2, then insert the third sealing ring 72 into the annular groove 71, then insert the positioning rod 5 on the annular pressure plate 4 into the positioning tube 6 on the inner wall of the cover 1, and let the annular pressure plate 4 fit with the first sealing ring 31, and finally fix the cover 1 with the generator housing through the mounting plate 12. The perforations 11 on the heat sink 10 can increase air flow and improve the heat dissipation effect of the heat sink 10.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automobile generator end cover, comprising a cover body (1), characterized in that: The open end of the cover body (1) connected to the generator housing is provided with a step groove (2), and a first sealing component (3) is fitted inside the step groove (2). The first sealing component (3) includes a first sealing ring (31) and a second sealing ring (32), and the first sealing ring (31) and the second sealing ring (32) are vertically fixedly connected. An annular pressure plate (4) is fitted on the surface of the first sealing ring (31) away from the step groove (2). A second sealing component (7) is provided at the open end of the cover body (1) and located outside the step groove (2). A plurality of heat sinks (10) are penetrated and fixedly connected to the side wall of the cover body (1), and a plurality of through holes (11) are provided at one end of the outer side of the cover body (1).

2. The automobile generator end cover according to claim 1, characterized in that: A plurality of mounting plates (12) are fixedly connected to the side edge of the open end of the cover body (1), and a mounting hole (13) is provided in the middle of each mounting plate (12).

3. The automobile generator end cover according to claim 1, characterized in that: The first sealing ring (31) and the second sealing ring (32) are both hollow in design, and a channel (33) is provided between the first sealing ring (31) and the second sealing ring (32).

4. The automobile generator end cover according to claim 1, characterized in that: The inner wall of the cover body (1) is fixedly connected to two symmetrical positioning tubes (6), and the side of the annular pressure plate (4) close to the cover body (1) is fixedly connected to a positioning rod (5) inserted into the positioning tube (6).

5. The automobile generator end cover according to claim 4, characterized in that: The outer side wall of the positioning rod (5) is fixedly connected with a rubber sleeve.

6. The automobile generator end cover according to claim 1, characterized in that: The second sealing assembly (7) comprises an annular groove (71), and a third sealing ring (72) is clamped inside the annular groove (71).

7. The automobile generator end cover according to claim 1, characterized in that: An axial hole (8) is provided in the middle of the cover body (1), a sealed bearing (9) is fixedly connected to the inner wall of the axial hole (8), and the inner ring of the sealed bearing (9) is fixedly connected to the rotor shaft of the generator.

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