CN104847620A - Electric fuel pump for automobile - Google Patents
Electric fuel pump for automobile Download PDFInfo
- Publication number
- CN104847620A CN104847620A CN201510223222.4A CN201510223222A CN104847620A CN 104847620 A CN104847620 A CN 104847620A CN 201510223222 A CN201510223222 A CN 201510223222A CN 104847620 A CN104847620 A CN 104847620A
- Authority
- CN
- China
- Prior art keywords
- pump
- positive
- inserted sheet
- negative polarity
- seal ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses an electric fuel pump for an automobile. The electric fuel pump for the automobile comprises a pump case, a pump head component, a back cover component, an electric motor component installed inside the pump case, and a pump body component. The pump head component comprises a pump cover made of a plastic material, an anode insertion piece and a cathode insertion piece that are fixed on the pump cover. The anode insertion piece and the cathode insertion piece run through the upper end face and the lower end face of the pump cover, wherein a sealing ring is fixedly sleeved on the lower-half periphery of the connected portion among the anode insertion piece, the cathode insertion piece and the pump cover, with the lower end of the sealing ring being away from the lower end face of the pump cover by a certain distance. The anode insertion piece, the cathode insertion piece, the sealing ring and the pump cover are integrally injection molded. With the electric fuel pump for the automobile, the problem of leaking the fuel inside the fuel pump from the surfaces of the anode insertion piece and the cathode insertion piece can be thoroughly solved, thereby ensuring the safety of driving.
Description
[technical field]
The present invention relates to a kind of improvement of automobile electric fuel pump.
[background technique]
The effect of automobile electric fuel pump is in the fuel pipe of oil sprayer by the fuel delivery that is stored in fuel tank.The mounting type of automobile electric fuel pump has built-in fuel tank and external fuel tank two kinds, for the automobile electric fuel pump of external fuel tank, oil leakage prevention is very crucial technical problem, although have employed a lot of scheme at present, but inevitably: during normal vehicle operation, rising due to oil temperature can make the pump cover of plastic materials occur ruckbildung, although both positive and negative polarity inserted sheet and pump cover integrated injection molding, oil is still possibly from inserted sheet surface seep; Further, during vehicle long-time running, fuel pipe has blocking phenomenon and causes pressure to raise, and makes the instantaneous increase of pressure in fuel pump that oil also can be caused from inserted sheet surface seep.Although above-mentioned oil seepage trace, pole is unfavorable for travel safety.
[summary of the invention]
For the deficiency that prior art exists, object of the present invention aims to provide and a kind ofly thoroughly can solve the problem of oil pump internal fuel from both positive and negative polarity inserted sheet surface seepage outward, guarantees the automobile electric fuel pump of travel safety.
The present invention implements by the following technical programs:
Automobile electric fuel pump, comprise pump case, pump head parts, rear case component, be contained in motor component in pump case and pump parts, the pump cover that pump head parts comprise plastic materials and the both positive and negative polarity inserted sheet be fixed on pump cover, both positive and negative polarity inserted sheet runs through pump cover upper and lower end face, it is characterized in that: second outer rim fixed cover of both positive and negative polarity inserted sheet and pump cover joining part is provided with seal ring, pump cover lower end surface certain distance is left in the lower end of seal ring, both positive and negative polarity inserted sheet, seal ring and pump cover integrated injection molding.
Described seal ring is fluorosioloxane rubber material, and seal ring is located at the outer rim of both positive and negative polarity inserted sheet by heat-shrink tube mode fixed cover.
After adopting technique scheme, first, second outer rim of both positive and negative polarity inserted sheet and pump cover joining part fixes sheathed seal ring, and pump cover lower end surface certain distance is left in the lower end of seal ring, then, both positive and negative polarity inserted sheet, seal ring and pump cover integrated injection molding again, so, 1. there is reliable sealing in seal ring and between both positive and negative polarity inserted sheet, its sealing guarantee is: one is the outer rim of the banding of seal ring at both positive and negative polarity inserted sheet own, two is by the contraction of pump cover, seal ring is compressed to both positive and negative polarity inserted sheet outer rim after injection moulding, and three is rubber elasticities that seal ring has.2. have reliable sealing outside seal ring and between pump cover, its sealing guarantee is: rubber is relative with plastic materials close, and rubber has favorable elasticity, can guarantee that sealing good between seal ring with pump cover contacts.3. first direct and pump cover integrated injection molding of both positive and negative polarity inserted sheet and pump cover joining part, second then by after seal ring with pump cover integrated injection molding, the coupling stiffness between both positive and negative polarity inserted sheet and pump cover can be ensured, also make sealing diversity simultaneously, both the sealing between seal ring and both positive and negative polarity inserted sheet had been included, include again the sealing between seal ring and pump cover, further comprises the sealing between both positive and negative polarity inserted sheet and pump cover, improve sealing reliability.4. pump cover lower end surface certain distance is left in the lower end of seal ring, first can increase sealing effective length, secondly seal ring can be kept very well to the independent sealing of both positive and negative polarity inserted sheet, better avoids oil to enter between both positive and negative polarity inserted sheet and seal ring from the lower end mouth of seal ring.Owing to having above-mentioned various sealing and reliable sealing to be ensured, even if so oil temperature raises or the instantaneous increase of pressure in oil pump, the fuel oil of oil pump inside also can not have a bit seepage from both positive and negative polarity inserted sheet surface outward, thus guarantees travel safety.
As preferred technological scheme, the width side side of described both positive and negative polarity inserted sheet is provided with groove, and the thickness side side of described both positive and negative polarity inserted sheet is provided with shrinkage pool.Above-mentioned design can improve the combination force between both positive and negative polarity inserted sheet and pump cover, is also conducive to sealing.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present invention,
Fig. 2 is the I portion enlarged view of Fig. 1,
Fig. 3 is the sleeve structure figure of both positive and negative polarity inserted sheet and seal ring.
[embodiment]
As shown in the figure, automobile electric fuel pump of the present invention, comprise pump case 2, pump head parts 1, rear case component 5, be contained in motor component 3 in pump case 2 and pump parts 4, the pump cover 7 that pump head parts 1 comprise plastic materials and the both positive and negative polarity inserted sheet 6 be fixed on pump cover 7, both positive and negative polarity inserted sheet 6 runs through pump cover 7 upper and lower end face, both positive and negative polarity inserted sheet 6 is provided with seal ring 8 with second outer rim fixed cover of pump cover 7 joining part, pump cover 7 lower end surface A certain distance (generally at about 1cm) is left in the lower end of seal ring 8, both positive and negative polarity inserted sheet 6, seal ring 8 and pump cover 7 integrated injection molding.Described seal ring 8 is fluorosioloxane rubber material, and seal ring 8 is located at the outer rim of both positive and negative polarity inserted sheet 6 by heat-shrink tube mode fixed cover.The width side side of described both positive and negative polarity inserted sheet 6 is provided with groove 62, and the thickness side side of described both positive and negative polarity inserted sheet 6 is provided with shrinkage pool 61.
Above-mentioned automobile electric fuel pump, there is reliable sealing in seal ring and between both positive and negative polarity inserted sheet, have reliable sealing outside seal ring and between pump cover, between both positive and negative polarity inserted sheet and pump cover, have sealing, also comprise the independent sealing of seal ring to both positive and negative polarity inserted sheet, sealing effective length is long.Owing to having above-mentioned various sealing and reliable sealing to be ensured, even if so oil temperature raises or the instantaneous increase of pressure in oil pump, the fuel oil of oil pump inside also can not have a bit seepage from both positive and negative polarity inserted sheet surface outward, thus guarantees travel safety.
Claims (3)
1. automobile electric fuel pump, comprise pump case, pump head parts, rear case component, be contained in motor component in pump case and pump parts, the pump cover that pump head parts comprise plastic materials and the both positive and negative polarity inserted sheet be fixed on pump cover, both positive and negative polarity inserted sheet runs through pump cover upper and lower end face, it is characterized in that: second outer rim fixed cover of both positive and negative polarity inserted sheet and pump cover joining part is provided with seal ring, pump cover lower end surface certain distance is left in the lower end of seal ring, both positive and negative polarity inserted sheet, seal ring and pump cover integrated injection molding.
2. automobile electric fuel pump as claimed in claim 1, it is characterized in that: described seal ring is fluorosioloxane rubber material, seal ring is located at the outer rim of both positive and negative polarity inserted sheet by heat-shrink tube mode fixed cover.
3. automobile electric fuel pump as claimed in claim 1, it is characterized in that: the width side side of described both positive and negative polarity inserted sheet is provided with groove, the thickness side side of described 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 true CN104847620A (en) | 2015-08-19 |
| CN104847620B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524608A (en) * | 2016-06-22 | 2017-12-29 | 泓记精密股份有限公司 | Electric fuel oil pumping |
Citations (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 |
| CN1701175A (en) * | 2003-03-27 | 2005-11-23 | 西门子公司 | Connection piece for a fuel pump |
| 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 |
| CN101146998A (en) * | 2005-04-04 | 2008-03-19 | 三电有限公司 | Electric motor-driven compressor |
| CN201925156U (en) * | 2011-01-14 | 2011-08-10 | 温州银皓泵业有限公司 | Micro fuel pump for motorcycle |
| CN102272455A (en) * | 2009-01-09 | 2011-12-07 | 艾默生环境优化技术有限公司 | Compressor having terminal plug assembly |
| 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
Patent Citations (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 |
| CN1701175A (en) * | 2003-03-27 | 2005-11-23 | 西门子公司 | Connection piece for a fuel pump |
| CN101146998A (en) * | 2005-04-04 | 2008-03-19 | 三电有限公司 | Electric 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 |
| CN102272455A (en) * | 2009-01-09 | 2011-12-07 | 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524608A (en) * | 2016-06-22 | 2017-12-29 | 泓记精密股份有限公司 | Electric fuel oil pumping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104847620B (en) | 2017-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104943557A (en) | Charging housing or filler neck housing | |
| CN104640751A (en) | Device for connecting a wiper arm and a wiper blade together including an area arranged to receive a plurality of spray openings | |
| CN104577477A (en) | Waterproof-sealing electrical connector assembly | |
| CN204591612U (en) | Automobile electric fuel pump | |
| CN104847620A (en) | Electric fuel pump for automobile | |
| CN204610268U (en) | Oil leakage prevention electric fuel punp | |
| KR20150111622A (en) | Assembly structure for dust cap of automobile steering apparatus | |
| CN205316683U (en) | Prevent joint Assembly of company and water heater of electric wall | |
| CN110822201A (en) | Double-layer sealed flexible stainless steel composite pipe joint | |
| KR101655139B1 (en) | Sealing structure of charging connector for vehicles | |
| CN209141810U (en) | A kind of sealing structure of automobile axle rear cover | |
| CN108361225B (en) | Vortex type air pump with high mechanical sealing structure | |
| CN218493868U (en) | Plastic-packaged magnetic pole impeller | |
| CN202039933U (en) | Wind lead cover of air-cooled diesel engine | |
| CN106567934A (en) | Stop valve | |
| CN216618870U (en) | Sealing ring structure for joint | |
| CN211118207U (en) | Double-layer sealed flexible stainless steel composite pipe joint | |
| US20020113378A1 (en) | Packing | |
| CN217719324U (en) | Rubber plug component of capacitor | |
| CN215995019U (en) | Sealing ring device for drainage tube and drainage tube using same | |
| CN205781646U (en) | Novel injection molding becomes section steel plastic transition components | |
| CN212455197U (en) | Dust keeper and connecting rod assembly | |
| CN204998334U (en) | Refuel neck tube assembly | |
| CN210882091U (en) | Liquid leakage prevention power-assisted oil cup | |
| CN213768216U (en) | Outer end cover of vehicle object shielding curtain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |