CN211598999U - Automobile electric vacuum pump - Google Patents
Automobile electric vacuum pump Download PDFInfo
- Publication number
- CN211598999U CN211598999U CN201922320440.6U CN201922320440U CN211598999U CN 211598999 U CN211598999 U CN 211598999U CN 201922320440 U CN201922320440 U CN 201922320440U CN 211598999 U CN211598999 U CN 211598999U
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- motor
- cover plate
- lower cover
- rotor
- sealing ring
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Abstract
The utility model relates to an automobile electric vacuum pump belongs to car braking system field. Amortization lid is through amortization lid screw assembly on the motor, the pump chamber screw is with the upper cover plate, the stator, the lower cover plate is fixed on the motor, at stator internally mounted rotor, blade and eccentric ring, wherein five blades are installed in five grooves of rotor, the motor shaft interference fit of eccentric ring and motor, the rotor is installed on the eccentric ring, heterotypic sealing washer is installed between motor and amortization lid and motor and lower cover plate, protection casing fixed connection is in the motor side, support cover and the inside fixed connection of shock attenuation trepanning, shock attenuation cover fixed connection is in the flange ear hole department of motor, the sealing plug is installed in the motor bottom. Has the advantages that: the structure is novel, the vibration of the lower cover plate can be reduced more, and the noise generated by the lower cover plate is inhibited; greatly reduce the risk that the sealing washer deviates from, the part assembly technology is simplified, has improved the assembly efficiency of product.
Description
Technical Field
The utility model belongs to car braking system field especially indicates a novel automobile electric vacuum pump.
Background
At present, in the electric vacuum pump industry, pump chamber sealing ring and O type sealing washer adopt split type design, and the sealing ring assembly can appear assembling inaccurate and lead to extrusion deformation under apron and motor, has the condition of suction vacuum passageway or vacuum leakage when electric vacuum pump work, and O type sealing washer is great owing to diameter rather than cross-section diameter ratio, can take place to enclose under free state and bend, phenomenons such as warp, and O type sealing washer assembles in the heterotypic annular between amortization lid and motor, the condition of deviating from easily appears. Due to the fact that the existing structure is not designed in a mistake-proof mode, the problems that parts are not installed in a neglected mode, the parts are not assembled in place and the like can occur, and the risk that the safety of a vehicle braking system is greatly reduced is achieved.
Disclosure of Invention
The utility model provides an automobile electric vacuum pump to the sealing ring and the O type sealing washer that solve current electric vacuum pump easily take place to warp, lead to electric vacuum pump during operation suction vacuum channel or vacuum leakage and O type sealing washer easily to appear deviating from, neglected loading, the problem that the assembly is not in place appear in the part.
The utility model adopts the technical proposal that: the noise reduction cover is assembled on the motor through a noise reduction cover screw, the upper cover plate, the stator and the lower cover plate are fixed on the motor through a pump chamber screw, a rotor, blades and an eccentric ring are installed inside the stator, five blades are installed in five grooves of the rotor, the eccentric ring is in interference fit with a motor shaft of the motor, the rotor is installed on the eccentric ring, special-shaped sealing rings are installed between the motor and the noise reduction cover and between the motor and the lower cover plate, a protective cover is fixedly connected to the side face of the motor, a supporting sleeve is fixedly connected with the inside of a damping sleeve hole, the damping sleeve is fixedly connected to a flange lug hole of the motor, and a;
the inner part of the special-shaped sealing ring is 8-shaped, the outer part of the special-shaped sealing ring is special-shaped, and the outer part and the inner part of the special-shaped sealing ring are connected by three ribs;
the motor is provided with a flange structure, a sealing ring groove in the flange is in a special shape, the sealing ring groove is matched with a special-shaped sealing ring, and a circular truncated cone is arranged on the flange and matched with the lower cover plate.
The utility model has the advantages that: the structure is novel, the sealing rings are arranged between the silencing cover and the motor and between the lower cover plate and the motor, and the sealing structure between the motor and the lower cover plate and the sealing structure between the motor and the silencing cover are unified into a sealing structure; the sealing groove matched with the sealing ring with the new structure is arranged in the flange, and the lower cover plate and the sealing ring with the new structure have more rubber contact parts, so that the vibration of the lower cover plate can be reduced more, and the noise generated by the lower cover plate can be inhibited; the sealing ring and the O-shaped sealing ring are combined through the connecting rib, and due to the fact that the connecting rib structure is added, the O-shaped sealing ring can distinguish the assembling direction, can be consistent with the special-shaped sealing ring groove of the motor, and can greatly reduce the risk of the sealing ring being separated. After the integrated structure is adopted, the part assembly is simplified into one-time assembly, the assembly efficiency of the product is improved, the integrated structure is used for new energy automobiles, automobiles with turbocharged system engines and diesel engine automobiles, the integrated structure plays a role in providing a vacuum source for automobile vacuum braking systems, and belongs to one of safety parts in automobile braking systems.
Drawings
Fig. 1 is an exploded view of the present invention;
fig. 2 is a schematic structural diagram of the sealing ring of the present invention;
fig. 3 is a schematic structural diagram of the motor of the present invention;
in the figure, a silencing cover 1, a pump chamber screw 2, an upper cover plate 3, a rotor 4, a blade 5, an eccentric ring 6, a stator 7, a silencing cover screw 8, a lower cover plate 9, a special-shaped sealing ring 10, a motor 11, a protective cover 12, a damping sleeve 13, a supporting sleeve 14, a sealing plug 15, a flange 1101, a special-shaped sealing ring groove 110101 and a circular truncated cone 110102.
Detailed Description
The noise reduction cover 1 is assembled on a motor 11 through 3 noise reduction cover screws 8, an upper cover plate 3, a stator 7 and a lower cover plate 9 are fixed on the motor 11 through pump chamber screws 2, a rotor 4, blades 5 and an eccentric ring 6 are installed inside the stator 7, five blades 5 are installed in five grooves of the rotor 4, the eccentric ring 6 is in interference fit with a motor shaft of the motor 11, the rotor 4 is installed on the eccentric ring 6, a special-shaped sealing ring 10 is installed between the motor 11 and the noise reduction cover 1 and between the motor 11 and the lower cover plate 9, a protective cover 12 is fixedly connected to the side surface of the motor 11, a support sleeve 14 is fixedly connected with the inner part of a hole of a damping sleeve 13, the damping sleeve 13 is fixedly connected with a flange ear hole of the motor 11, and;
the inner part of the special-shaped sealing ring 10 is 8-shaped, the outer part is special-shaped, and the outer part is connected with the inner part by three ribs;
the motor 11 is provided with a flange 1101 structure, a seal ring groove 110101 in the flange 1101 is in a special shape, the seal ring groove 110101 is matched with a special-shaped seal ring 10, a circular truncated cone 110102 is arranged on the flange 1101, and the circular truncated cone 110102 is matched with the lower cover plate 9.
The working principle is as follows: the utility model discloses an electric vacuum pump is by upper cover plate 3, stator 7 and lower cover plate 9 formation airtight pump chamber, under motor 11's drive, drives rotor 4 through eccentric ring 6 and rotates, and blade 5 produces the vacuum with gaseous discharge in the pump chamber under the centrifugal force effect. The main function of the silencing cover 1 is to reduce noise and protect the interior from dust and impurities such as water and oil. The special-shaped sealing ring 10 is arranged on the motor 11 and plays a role in sealing between the motor 11 and the silencing cover 1 to prevent impurities from invading. Meanwhile, an air inlet channel is arranged between the motor 11 and the lower cover plate 9 to play a role in sealing.
The utility model discloses a heterotypic sealing washer 10, as shown in figure 2. The inside comprises an 8-shaped sealing ring, the outside is a special-shaped sealing ring, and the outside is connected with the inside by 3 ribs. After the structure is combined, the assembly state of the special-shaped sealing ring is stable and is not easy to deform. Is not easy to loose in the assembling process. The utility model discloses a heterotypic sealing washer 10 has increased the area of contact with apron 9 down because of the structural change that takes place, and heterotypic sealing washer 10 and the relative former scheme atress of the contact segment of apron 9 equipartition more down for rubber damping noise suppression's ability improves, has effectively reduced the whole noise level of product.
Claims (3)
1. An automobile electric vacuum pump is characterized in that: amortization lid is through amortization lid screw assembly on the motor, the pump chamber screw is with the upper cover plate, the stator, the lower cover plate is fixed on the motor, at stator internally mounted rotor, blade and eccentric ring, wherein five blades are installed in five grooves of rotor, the motor shaft interference fit of eccentric ring and motor, the rotor is installed on the eccentric ring, heterotypic sealing washer is installed between motor and amortization lid and motor and lower cover plate, protection casing fixed connection is in the motor side, support cover and the inside fixed connection of shock attenuation trepanning, shock attenuation cover fixed connection is in the flange ear hole department of motor, the sealing plug is installed in the motor bottom.
2. The automotive electric vacuum pump of claim 1, characterized in that: the special-shaped sealing ring is internally shaped like an 8, externally shaped, and connected with the inside by three ribs.
3. The automotive electric vacuum pump of claim 1, characterized in that: the motor is provided with a flange structure, a sealing ring groove in the flange is in a special shape, the sealing ring groove is matched with a special-shaped sealing ring, and a circular truncated cone is arranged on the flange and matched with the lower cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922320440.6U CN211598999U (en) | 2019-12-22 | 2019-12-22 | Automobile electric vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922320440.6U CN211598999U (en) | 2019-12-22 | 2019-12-22 | Automobile electric vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211598999U true CN211598999U (en) | 2020-09-29 |
Family
ID=72594282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922320440.6U Active CN211598999U (en) | 2019-12-22 | 2019-12-22 | Automobile electric vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211598999U (en) |
-
2019
- 2019-12-22 CN CN201922320440.6U patent/CN211598999U/en active Active
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