CN209488323U - Automobile fuel pump motor - Google Patents
Automobile fuel pump motor Download PDFInfo
- Publication number
- CN209488323U CN209488323U CN201920574030.1U CN201920574030U CN209488323U CN 209488323 U CN209488323 U CN 209488323U CN 201920574030 U CN201920574030 U CN 201920574030U CN 209488323 U CN209488323 U CN 209488323U
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- Prior art keywords
- hole
- front cover
- screw
- carbon brush
- bearing
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Abstract
The utility model relates to a kind of automobile fuel pump motors, including front cover, rear cover, casing, rotor, the preceding snap ring for the protrusion being adapted to casing end face inner wall is formed on the inside of front cover, front cover forms seal groove before a circle outside preceding snap ring, preceding sealing ring is provided in preceding seal groove, the rear snap ring for the protrusion being adapted to casing end face inner wall is formed on the inside of the rear cover, rear cover forms seal groove after a circle outside rear snap ring, rear sealing ring is provided in seal groove afterwards, the axis hole at front cover center includes being arranged in inside, the bearing hole of major diameter and setting are in outside, the sealing hole of minor diameter, bearing is provided in bearing hole, cotton circle is provided on the inside of bearing, backbone sealing ring is provided in sealing hole, rotor central spindle passes through the center of bearing and backbone sealing ring, conducting wire is connected on the outside of rear cover, bellows is provided on conducting wire, filled with close between bellows and rear cover Sealing.The utility model guarantees leakproofness by a series of seal approach, while convenient for assembly.
Description
Technical field
The utility model relates to a kind of motor, especially a kind of automobile fuel pump motor.
Background technique
Automobile fuel pump motor is that the motor of pressure is provided for engine fuel injection system.Automobile fuel pump electric machine casing is by more
Duan Zucheng, shell are sealed in connection using sealing ring, and existing sealing ring setting is unreasonable, and sealing effect is bad;And
And using double carbon brush, the stability of motor is poor, is easy to lead to seal failure because of vibration.
Summary of the invention
In order to solve the deficiencies in the prior art, the utility model provides that a kind of structure is simple, vapour of good airproof performance
Vehicle Oil pump electrical machinery.
To achieve the above object, the utility model is a kind of automobile fuel pump motor, including front cover, rear cover, casing, rotor,
Carbon brush, front cover setting are provided with carbon brush holder in casing front end, rear cover setting on the inside of casing rear end, rear cover, and carbon brush is arranged in carbon
On brush holder, rotor is arranged in casing, and rotor rear end is provided with commutator, and commutator is connect with carbon brush, and there are four carbon brush, and four
Carbon brush is arranged in " ten " font in commutator surrounding, and rotor front end center is provided with rotor central spindle, and front cover is centrally formed axis hole, turns
Sub- central spindle passes through the axis hole of front cover, and the preceding snap ring for the protrusion being adapted to casing end face inner wall is formed on the inside of the front cover, and front cover exists
One is formed outside preceding snap ring and encloses preceding seal groove, and preceding sealing ring is provided in preceding seal groove, is formed and casing end face on the inside of the rear cover
The rear snap ring of the protrusion of inner wall adaptation, rear cover form seal groove after a circle outside rear snap ring, seal after being provided in rear seal groove
Circle, the axis hole at front cover center include the sealing hole that internal, major diameter bearing hole is arranged in and outside, minor diameter is arranged in, axis
It is provided with bearing in bearing bore, is provided with cotton circle on the inside of bearing, backbone sealing ring is provided in sealing hole, rotor central spindle passes through bearing
With the center of backbone sealing ring, rear cover outside is connected with conducting wire, bellows is provided on conducting wire, is filled between bellows and rear cover
There is sealant.
The utility model be further arranged to it is described after cover and be provided with screw through-hole, be provided with screw hole in screw through-hole
Sealing ring corresponds to screw through-hole on front cover and forms screw hole, and setting screw passes through screw through-hole and is connected on screw hole, carbon brush holder
The flight for bypassing screw is formed at screw through-hole.
The utility model is further arranged to be provided with exterior seal ring on the outside side wall of the front cover.
The utility model is further arranged on the carbon brush holder filled with sealant.
The utility model has the beneficial effects that sealing ring is arranged on contact surface between casing and front/rear cover, pass through spiral shell
Silk tenses front cover and rear cover, guarantees the sealing effect of sealing ring;Cotton circle is set outside the bearing of front cover and backbone sealing ring realizes axis
Sealing between core and front cover;Setting screw hole sealing ring in the screw through-hole passed through for screw is covered afterwards, guarantees screw through-hole
Sealing;Filling with sealant guarantees the sealing at conducting wire between rear cover and the bellows of conducting wire.The utility model passes through above-mentioned one
The seal approach of series guarantees leakproofness, while convenient for assembly.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model specific embodiment.
Fig. 2 is the axial sectional view of the utility model specific embodiment.
Fig. 3 is the radial cross-section of the utility model specific embodiment.
Specific embodiment
As shown in Figure 1-Figure 3, specific embodiment of the utility model is a kind of automobile fuel pump motor, including front cover 1, rear cover
2, casing 3, rotor 4, carbon brush 5, the setting of front cover 1 are provided on the inside of 3 rear end of casing, rear cover 2 in 3 front end of casing, the setting of rear cover 2
Carbon brush holder 6, carbon brush 5 are arranged on carbon brush holder 6, and rotor 4 is arranged in casing 3, and 4 rear end of rotor is provided with commutator 7, commutator
7 connect with carbon brush 5, and there are four carbon brush 5, and four carbon brush 5 are arranged in " ten " font in 7 surrounding of commutator, and 4 front end center of rotor is set
It is equipped with rotor central spindle 8, front cover 1 is centrally formed axis hole, and axis hole includes that internal, major diameter bearing hole 11 and setting is arranged in outside
Portion, minor diameter sealing hole 14, be provided with bearing 12 in bearing hole 11, be provided with cotton circle 13 on the inside of bearing 12, in sealing hole 14
It is provided with backbone sealing ring 15, rotor central spindle 8 passes through the center of bearing 12 and backbone sealing ring 15, formation and machine on the inside of front cover 1
The preceding snap ring 16 of the protrusion of 3 end face inner wall of shell adaptation, front cover 1 form seal groove 17 before a circle, preceding seal groove outside preceding snap ring 16
It is provided with preceding sealing ring 18 in 17, is provided with exterior seal ring 19 on the outside side wall of front cover 1.It is formed and 3 end of casing on the inside of rear cover 2
The rear snap ring 21 of the protrusion of face inner wall adaptation, rear cover 2 form seal groove 22 after a circle outside rear snap ring 21, set in rear seal groove 22
It is equipped with rear sealing ring 23, conducting wire 9 is connected on the outside of rear cover 2, bellows 91 is provided on conducting wire 9, between bellows 91 and rear cover 2
Filled with external seal glue 24.
It is provided with screw through-hole 25 on rear cover 2, screw hole sealing ring 26 is provided in screw through-hole 25, is corresponded on front cover 1
Screw through-hole 25 forms screw hole 10, and setting screw 27 passes through screw through-hole 25 and is connected on screw hole 10, and carbon brush holder 6 is in screw
The flight 61 for bypassing screw 27 is formed at through-hole 25, is filled with interior sealant 62 on carbon brush holder 6.
Above-described embodiment is the better embodiment of the utility model, other obvious changes are in the utility model
Protection scope in.
Claims (4)
1. a kind of automobile fuel pump motor, including front cover, rear cover, casing, rotor, carbon brush, front cover is arranged in casing front end, and rear cover is set
It sets and is provided with carbon brush holder on the inside of casing rear end, rear cover, carbon brush is arranged on carbon brush holder, and rotor is arranged in casing, after rotor
End is provided with commutator, and commutator is connect with carbon brush, and there are four carbon brush, and four carbon brush are arranged in " ten " font in commutator four
Week, rotor front end center are provided with rotor central spindle, and front cover is centrally formed axis hole, and rotor central spindle passes through the axis hole of front cover, feature
It is: forms the preceding snap ring for the protrusion being adapted to casing end face inner wall on the inside of the front cover, front cover forms a circle outside preceding snap ring
Preceding seal groove is provided with preceding sealing ring in preceding seal groove, forms the protrusion being adapted to casing end face inner wall on the inside of the rear cover
Snap ring afterwards, rear cover form seal groove after a circle outside rear snap ring, are provided with rear sealing ring, the axis hole at front cover center in rear seal groove
Including the bearing hole of internal, major diameter is arranged in and external, minor diameter sealing hole is arranged in, it is provided with bearing in bearing hole,
It is provided with cotton circle on the inside of bearing, backbone sealing ring is provided in sealing hole, rotor central spindle passes through in bearing and backbone sealing ring
The heart, rear cover outside are connected with conducting wire, bellows are provided on conducting wire, and sealant is filled between bellows and rear cover.
2. automobile fuel pump motor according to claim 1, it is characterised in that: it is covered after described and is provided with screw through-hole, spiral shell
It is provided with screw hole sealing ring in silk through-hole, screw through-hole is corresponded on front cover and forms screw hole, setting screw passes through screw through-hole
It is connected on screw hole, the flight that carbon brush holder is formed at screw through-hole around screw.
3. automobile fuel pump motor according to claim 1 or 2, it is characterised in that: be arranged on the outside side wall of the front cover
There is exterior seal ring.
4. automobile fuel pump motor according to claim 2, it is characterised in that: be filled with sealant on the carbon brush holder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920574030.1U CN209488323U (en) | 2019-04-25 | 2019-04-25 | Automobile fuel pump motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920574030.1U CN209488323U (en) | 2019-04-25 | 2019-04-25 | Automobile fuel pump motor |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209488323U true CN209488323U (en) | 2019-10-11 |
Family
ID=68135624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201920574030.1U Active CN209488323U (en) | 2019-04-25 | 2019-04-25 | Automobile fuel pump motor |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209488323U (en) |
-
2019
- 2019-04-25 CN CN201920574030.1U patent/CN209488323U/en active Active
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