CN104847620B - Automobile electric fuel pump - Google Patents
Automobile electric fuel pump Download PDFInfo
- Publication number
- CN104847620B CN104847620B CN201510223222.4A CN201510223222A CN104847620B CN 104847620 B CN104847620 B CN 104847620B CN 201510223222 A CN201510223222 A CN 201510223222A CN 104847620 B CN104847620 B CN 104847620B
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- China
- Prior art keywords
- pump
- positive
- inserted sheet
- negative polarity
- sealing ring
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Abstract
The invention discloses automobile electric fuel pump, including pump case, pump head part, rear case component, motor component and pump parts in pump case, the both positive and negative polarity inserted sheet that pump head part includes the pump cover of plastic material and is fixed on pump cover, both positive and negative polarity inserted sheet runs through pump cover upper and lower end face, it is characterised in that：The lower half outer rim fixed cover of both positive and negative polarity inserted sheet and pump cover joining part is provided with sealing ring, and pump cover lower surface certain distance, both positive and negative polarity inserted sheet, sealing ring and pump cover integrated injection molding are left in the lower end of sealing ring.The present invention can thoroughly solve oil pump internal fuel from both positive and negative polarity inserted sheet surface outward seepage the problem of, it is ensured that travel safety.
Description
【Technical field】
The present invention relates to a kind of improvement of automobile electric fuel pump.
【Background technology】
The effect of automobile electric fuel pump is that the fuel oil being stored in fuel tank is delivered in the fuel pipe of fuel injector.
The mounting means of automobile electric fuel pump has two kinds of built-in fuel tank and external fuel tank, for the motorcar electric of external fuel tank
Fuel pump, oil leakage prevention is very crucial technical problem, although having employed many schemes at present, inevitably
It is：During normal vehicle operation, because the rise of oil temperature can make the pump cover of plastic material ruckbildung occur, although both positive and negative polarity inserted sheet
With pump cover integrated injection molding, but oil be still likely to from inserted sheet surface seep；Further, during vehicle longtime running, fuel pipe
Road, which has clogging, causes pressure rise, and making fuel pump internal pressure, instantaneously increase also results in oil from inserted sheet surface seep.It is above-mentioned
Oil seepage is although micro, but pole is unfavorable for travel safety.
【The content of the invention】
In view of the deficienciess of the prior art, the purpose of the present invention, which aims to provide one kind, can thoroughly solve oil pump internal fuel
From both positive and negative polarity inserted sheet surface outward seepage the problem of, it is ensured that the automobile electric fuel pump of travel safety.
The present invention is implemented by the following technical programs：
Automobile electric fuel pump, including pump case, pump head part, rear case component, motor component and the pump housing in pump case
Part, the both positive and negative polarity inserted sheet that pump head part includes the pump cover of plastic material and is fixed on pump cover, both positive and negative polarity inserted sheet runs through pump cover
Upper and lower end face, it is characterised in that：The lower half outer rim fixed cover of both positive and negative polarity inserted sheet and pump cover joining part is provided with sealing ring, sealing ring
Lower end leave pump cover lower surface certain distance, both positive and negative polarity inserted sheet, sealing ring and pump cover integrated injection molding.
The sealing ring is fluorosioloxane rubber material, and sealing ring is fixed by heat-shrink tube mode is set in the outer of both positive and negative polarity inserted sheet
Edge.
After adopting the above technical scheme, first, the lower half outer rim of both positive and negative polarity inserted sheet and pump cover joining part fix be arranged it is close
Seal ring, and pump cover lower surface certain distance is left in the lower end of sealing ring, and then, both positive and negative polarity inserted sheet, sealing ring and pump cover are another
Body injection molding, so, has reliable sealing, its sealing is ensured of in 1. sealing rings between both positive and negative polarity inserted sheet：One is close
Seal ring banding itself both positive and negative polarity inserted sheet outer rim, two be injection after by the contraction of pump cover make sealing ring to both positive and negative polarity inserted sheet outside
Edge is compressed, and three be the caoutchouc elasticity that sealing ring has.2. sealing ring is outer reliable sealing between pump cover, it, which is sealed, ensures
It is：Rubber is with plastic material close to rubber has favorable elasticity, it can be ensured that good sealing connects between sealing ring and pump cover
Touch.3. both positive and negative polarity inserted sheet and pump cover joining part is upper semi-direct with pump cover integrated injection molding, lower half then by sealing ring after
With pump cover integrated injection molding, it is ensured that the coupling stiffness between both positive and negative polarity inserted sheet and pump cover, while also making sealing diversity, both
Include the sealing between sealing ring and both positive and negative polarity inserted sheet, the sealing between sealing ring and pump cover is included again, be further comprises just
Sealing between negative pole inserted sheet and pump cover, improves sealing reliability.4. pump cover lower surface certain distance is left in the lower end of sealing ring,
Sealing effective length can be increased first, secondly independent sealing of the sealing ring to both positive and negative polarity inserted sheet can be kept very well, more preferably avoid oil
Enter from the lower port of sealing ring between both positive and negative polarity inserted sheet and sealing ring.The various sealing above-mentioned due to having and reliable sealing give
Ensure, even if so oil temperature rise or oil pump internal pressure instantaneously increase, the fuel oil inside oil pump also will not be from both positive and negative polarity inserted sheet surface
There is a bit seepage outward, so that it is guaranteed that travel safety.
As preferred technical scheme, the width side side of the both positive and negative polarity inserted sheet is provided with groove, the both positive and negative polarity inserted sheet
Thickness side side be provided with shrinkage pool.Above-mentioned design can improve the adhesion between both positive and negative polarity inserted sheet and pump cover, be also beneficial to sealing.
【Brief description of the drawings】
Fig. 1 is structural representation of the invention,
Fig. 2 is Fig. 1 I portions enlarged drawing,
Fig. 3 is the sleeve structure figure of both positive and negative polarity inserted sheet and sealing ring.
【Embodiment】
As illustrated, the present invention automobile electric fuel pump, including pump case 2, pump head part 1, rear case component 5, mounted in pump
Motor component 3 and pump parts 4 in shell 2, pump head part 1 include the pump cover 7 of plastic material and are fixed on positive and negative on pump cover 7
Pole inserted sheet 6, both positive and negative polarity inserted sheet 6 runs through the upper and lower end face of pump cover 7, and the lower half outer rim of both positive and negative polarity inserted sheet 6 and the joining part of pump cover 7 is fixed
Sealing ring 8 is arranged with, the lower surface A certain distances (typically in 1cm or so) of pump cover 7, both positive and negative polarity inserted sheet are left in the lower end of sealing ring 8
6th, sealing ring 8 and the integrated injection molding of pump cover 7.The sealing ring 8 is fluorosioloxane rubber material, and sealing ring 8 passes through heat-shrink tube mode
The fixed outer rim for being set in both positive and negative polarity inserted sheet 6.The width side side of the both positive and negative polarity inserted sheet 6 is provided with groove 62, the both positive and negative polarity
The thickness side side of inserted sheet 6 is provided with shrinkage pool 61.
Have in above-mentioned automobile electric fuel pump, sealing ring between both positive and negative polarity inserted sheet outside reliable sealing, sealing ring and pump
There is reliable sealing between lid, have sealing, in addition to sealing ring between both positive and negative polarity inserted sheet and pump cover to the independent close of both positive and negative polarity inserted sheet
Envelope, sealing effective length is long.The various sealing above-mentioned due to having and reliable sealing are ensured, even if so oil temperature rise or oil
Pump internal pressure instantaneously increases, and the fuel oil inside oil pump also will not have a bit seepage outward from both positive and negative polarity inserted sheet surface, so that it is guaranteed that row
Car security.
Claims (3)
1. automobile electric fuel pump, including pump case, pump head part, rear case component, the motor component in pump case and pump housing portion
Part, the both positive and negative polarity inserted sheet that pump head part includes the pump cover of plastic material and is fixed on pump cover, both positive and negative polarity inserted sheet is on pump cover
Lower surface, it is characterised in that：The lower half outer rim fixed cover of both positive and negative polarity inserted sheet and pump cover joining part is provided with sealing ring, sealing ring
Leave pump cover lower surface certain distance, both positive and negative polarity inserted sheet, sealing ring and pump cover integrated injection molding in lower end.
2. automobile electric fuel pump as claimed in claim 1, it is characterised in that：The sealing ring is fluorosioloxane rubber material, close
Seal ring fixes the outer rim for being set in both positive and negative polarity inserted sheet by heat-shrink tube mode.
3. automobile electric fuel pump as claimed in claim 1, it is characterised in that：The width side side of the both positive and negative polarity inserted sheet is set
Fluted, the thickness side side of the both positive and negative polarity inserted sheet is provided with shrinkage pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223222.4A CN104847620B (en) | 2015-04-28 | 2015-04-28 | Automobile electric fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223222.4A CN104847620B (en) | 2015-04-28 | 2015-04-28 | Automobile electric fuel pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847620A CN104847620A (en) | 2015-08-19 |
| CN104847620B true CN104847620B (en) | 2017-10-10 |
Family
ID=53847517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510223222.4A Active CN104847620B (en) | 2015-04-28 | 2015-04-28 | Automobile electric fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847620B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524608B (en) * | 2016-06-22 | 2019-11-01 | 泓记精密股份有限公司 | Electric fuel oil pumping |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3003209A1 (en) * | 1980-01-30 | 1981-09-10 | Robert Bosch Gmbh, 7000 Stuttgart | Electrical connection for fuel pump - has conductive moulding material between terminal post and pump casing |
| DE10313985A1 (en) * | 2003-03-27 | 2004-10-07 | Siemens Ag | Connector for a fuel pump |
| JP2006283719A (en) * | 2005-04-04 | 2006-10-19 | Sanden Corp | Motor-driven compressor |
| CN200968268Y (en) * | 2006-11-22 | 2007-10-31 | 上海三电贝洱汽车空调有限公司 | Binding post board component for electric compressor |
| CN102272455B (en) * | 2009-01-09 | 2015-02-25 | 艾默生环境优化技术有限公司 | Compressor having terminal plug assembly |
| CN201925156U (en) * | 2011-01-14 | 2011-08-10 | 温州银皓泵业有限公司 | Micro fuel pump for motorcycle |
| CN102931757A (en) * | 2012-11-13 | 2013-02-13 | 苏州贝得科技有限公司 | Low voltage connecting terminal of refrigeration motor |
| CN204591612U (en) * | 2015-04-28 | 2015-08-26 | 胡金花 | Automobile electric fuel pump |
-
2015
- 2015-04-28 CN CN201510223222.4A patent/CN104847620B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104847620A (en) | 2015-08-19 |
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