CN101830165A - Electric fuel pump bracket and assembling method - Google Patents
Electric fuel pump bracket and assembling method Download PDFInfo
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- CN101830165A CN101830165A CN200910057878A CN200910057878A CN101830165A CN 101830165 A CN101830165 A CN 101830165A CN 200910057878 A CN200910057878 A CN 200910057878A CN 200910057878 A CN200910057878 A CN 200910057878A CN 101830165 A CN101830165 A CN 101830165A
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- bracket
- electric fuel
- fuel pump
- buckle
- punp
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Abstract
The invention discloses an electric fuel pump bracket and an assembling method. The electric fuel pump bracket comprises an upper bracket and a lower bracket, wherein an electric fuel pump is installed in the upper bracket and the lower bracket which are assembled and connected with each other through a fastening structure to together provide radial and axial constraints for the electric fuel pump; an oil sucking port of the electric fuel pump is matched with an oil inlet of the lower bracket; and the upper bracket is provided with an annular elastic check ring structure, and the elastic check ring structure of the upper bracket has downwards elastic constraining force for the electric fuel pump at the upper end of the electric fuel pump. The invention gets rid of auxiliary fastening parts to reduce product cost, solves the problem of difficult assembly of the electric fuel pump support and the electric fuel pump to reduce the risks of damaging the electric fuel pump in an assembling process, and improves the noise state of a fuel supplying device for vehicles.
Description
Technical field
The present invention relates to a kind of vehicle device, be specifically related to a kind of oil feeding device for vehicle.
Background technology
At present, as shown in Figure 1, the electric fuel pump bracket 4 of oil feeding device for vehicle generally is designed to single part.But generally, being connected of electric fuel pump bracket 4 and electric fuel punp 1 need to increase in addition auxiliary fastening parts (as the metal collar 5 etc.), to help to increase the reliability that cooperates.Owing to increased auxiliary component, thereby the cost of product increases.
And, do not have the circlip structure on the at present general electric fuel pump bracket 4, thereby electric fuel punp 1 suffered electric fuel pump bracket 4 axial constraint power are non-resilient power.4 pairs of electric fuel punps 1 of electric fuel pump bracket radially and axial constraint by incompatible the providing of rigidity close-fitting of 1 of electric fuel pump bracket 4 and electric fuel punp, promptly by the rigidity positive pressure and the friction force of 1 of electric fuel pump bracket 4 and electric fuel punp.The coordinate force that electric fuel pump bracket 4 and electric fuel punp are 1 is very big, and assembling between the two is difficulty relatively, and has the risk of damage electric fuel punp 1 in the fitting process.
At present, the noise of car load is more and more paid close attention to, the requirement of automobile fuel supply device noise quality is also constantly being improved.Former technology is excessive because of the not enough rigidity of electric fuel pump bracket 4 structural elasticities, and vibration damping, shock attenuation result are not good when system works, lack the effective protection to electric fuel punp 1, and the noise state of automobile fuel supply device is relatively poor.
As shown in Figure 1 and Figure 2, the electric fuel pump bracket 4 of prior art is a single part.The oil suction 8 of electric fuel punp 1 docks mutually with the oil inlet 9 of electric fuel pump bracket 4.Reliable in order to connect, the auxiliary fastening parts metal collar 5 is used for increasing the magnitude of interference of this cooperation place.
Produce in the fitting process, earlier the metal collar 5 is entangled the oil inlet 9 (matching relationship between the two can referring to Fig. 1, Fig. 2) of electric fuel pump bracket 4, then electric fuel punp 1 is pressed downward to electric fuel pump bracket 4 from the top of electric fuel pump bracket 4.Because the effect of holding tightly that the magnitude of interference that the metal collar 5 provides produces, the oil suction 8 of electric fuel punp 1 is when being pressed into the oil inlet 9 of electric fuel pump bracket 4, be subjected to bigger drag effect, assembling is difficulty comparatively, and the risk of the oil suction structure 8 of damage electric fuel punp 1 is arranged.
State after assembling is finished is referring to Fig. 1.The metal collar 5 and electric fuel pump bracket 4 combineds action are radially fixed the oil suction 8 of electric fuel punp 1.This place is the rigidity interference fit, and the radial rigidity positive pressure is big, thereby bigger rigidity friction force (this friction force is the axial constraint power of 4 pairs of electric fuel punps 1 of electric fuel pump bracket) can be provided.
As shown in Figure 1 and Figure 2, the axial constraint of 4 pairs of electric fuel punps 1 of electric fuel pump bracket is all provided by the friction force at this place basically.This shows, must guarantee have reliable and stable friction force at this place, this just prior art have to increase the reason of the auxiliary fastening parts metal collar 5.Owing to increased the part metal collar 5, cost of product increases.
As shown in Figure 1 and Figure 2, the rigidity of structure of electric fuel pump bracket 4 is big, and elasticity is very little, and vibration damping, absorbing poor-performing are therefore not enough to the protection of electric fuel punp 1, also is unfavorable for reducing the noise of electric fuel punp 1 work.
Summary of the invention
Technical matters to be solved by this invention provides a kind of electric fuel pump bracket, removes its auxiliary fastening parts to reduce cost of product; Solve the problem of electric fuel pump bracket and electric fuel punp assembling difficulty, reduce the risk of damage electric fuel punp in the fitting process; Improve the noise state of automobile fuel supply device.
In order to solve above technical matters, the invention provides a kind of electric fuel pump bracket, comprise: bracket, bottom bracket, electric fuel punp is installed in the inside of bracket and bottom bracket, assemble connection mutually by buckle structure between the upper and lower carriage, provide jointly to electric fuel punp radially with axial constraint; The oil suction of electric fuel punp and the oil inlet of bottom bracket cooperatively interact; Bracket is provided with the circlip structure of ring-type, and the circlip structure of bracket has downward elastic restraint power in the upper end of electric fuel punp to electric fuel punp.
Beneficial effect of the present invention is: remove auxiliary fastening parts to reduce cost of product; Solve the problem of electric fuel pump bracket and electric fuel punp assembling difficulty, reduce the risk of damage electric fuel punp in the fitting process; Improve the noise state of automobile fuel supply device.
The present invention also provides the assembly method of aforementioned electric fuel pump bracket, may further comprise the steps:
Electric fuel punp and bottom bracket are assembled, the oil suction of electric fuel punp is pressed into the oil inlet of bottom bracket;
Bracket is entangled electric fuel punp toward pressing down from the top, in the process that bracket presses down, the buckle of bracket can strut the elasticity window structure of bottom bracket;
When being seated, the circlip structure of bracket can be subjected to the thrust that the pump case of electric fuel punp makes progress and produce elastic deformation;
Upper and lower carriage is seated, and the buckle of bracket snaps in the rectangular window of bottom bracket elasticity window structure, and at this moment, three elasticity window structures of bottom bracket all return to the state before the distortion, and window structure fastens the buckle of bracket.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the state after prior art electric fuel pump bracket and the electric fuel punp assembling.
Fig. 2 is the assembling interface and the auxiliary fastening parts scheme drawing of prior art electric fuel pump bracket and electric fuel punp.
Fig. 3 is an automobile fuel supply device External view of the present invention.
Fig. 4 is an automobile fuel supply device section of structure of the present invention.
Fig. 5 is the assembling interface scheme drawing of electric fuel punp of the present invention and bottom bracket.
Fig. 6 is the assembly structure figure of upper and lower carriage of the present invention and electric fuel punp assembling.
The specific embodiment
The invention provides a kind of electric fuel pump bracket, comprise, electric fuel pump bracket is decomposed into bracket 2,3 two parts of bottom bracket; Assemble connection mutually by buckle structure between the upper and lower carriage, they provide jointly to electric fuel punp 1 radially with axial constraint; Remove the fixedly metal collar 5 of electric fuel punp 1 of auxiliary electric fuel pump bracket 4, reduced the risk of damage electric fuel punp 1 in the fitting process; Bracket 2 tops are provided with the circlip structure 6 of ring-type, and circlip structure 6 good springiness, rigidity are little; The circlip structure 6 of bracket 2 has downward (being axial) elastic restraint power in the upper end of electric fuel punp 1 to electric fuel punp 1; The circlip structure 6 of bracket 2 compensates build-up tolerance and gap by elastic deformation, and assembly process process is good; This circlip structure 6 has vibration damping, shock sucking function, thereby can protect electric fuel punp 1 and reduce its operating noise.
As shown in Figure 4, electric fuel punp 1 is installed in the inside of bracket 2 and bottom bracket 3, and whole electric fuel pump bracket structure matches with oil storage barrel by three the T shape snap-ons 7 (referring to Fig. 6) on the bracket 2, is fixed in the oil storage barrel.
The oil suction 8 of the electric fuel punp 1 among Fig. 5 is mutual to joining with the oil inlet of bottom bracket 39, this place is an amount of interference fit (an amount of interference, can satisfy this place's bonded assembly sealing requirements, can guarantee that again coordinate force between the two is moderate, be convenient to the two mutual assembly manipulation and can not damage the oil suction structure 8 of electric fuel punp 1);
Three of bottom bracket 3 elasticity window structures 10 120 ° of rectangular distributions of each interval in a circumferential direction among Fig. 5, elasticity window structure 10 is subjected to the buckle 11 outside thrusts of bracket 2 can produce outside elastic deformation in fitting process;
The circlip structure 6 of bracket 2 is 120 ° of thin elastic arms of well-distributed to each other by three sections and constitutes among Fig. 6, elastic arm has elasticity preferably, suitable rigidity, can produce certain elastic deformation on short transverse, this deformation energy provides certain elastic pressure.
Produce in the fitting process, earlier electric fuel punp 1 and bottom bracket 3 are assembled (oil suction 8 of electric fuel punp 1 is pressed into the oil inlet 9 of bottom bracket 3, can referring to Fig. 5).Then, bracket 2 is entangled electric fuel punp 1 toward pressing down from the top, in the process that bracket 2 presses down, the buckle 11 of bracket 2 can strut the elasticity window structure 10 of bottom bracket 3.
Referring to Fig. 6, when being seated, the circlip structure 6 of bracket 2 can be subjected to the thrust that the pump case of electric fuel punp 1 makes progress and produce elastic deformation.At last, upper and lower carriage is seated, the buckle 11 of bracket 2 snaps in the rectangular window of bottom bracket 3 elasticity window structures 10, at this moment, three elasticity window structures 10 of bottom bracket 3 all return to the state before the distortion, elasticity window structure 10 fastens the buckle 11 of bracket 2, guarantees the reliable connection at this place.
The circlip structure 6 of bracket 2 can produce certain deformation in fitting process, thereby compensation build-up tolerance and gap, the elasticity window 10 that can snap in bottom bracket 3 for the buckle 11 of bracket 2 provides enough assembly spaces, the buckle 11 that helps bracket 2 snaps in the elasticity window 10 of bottom bracket 3 smoothly, and this has just greatly improved assembly process process; After the buckle 11 of bracket 2 snaps in the elasticity window 10 of bottom bracket 3, bracket 2 circlip structures 6 still can remaining certain deformation, this deformation meeting applies elastic pressure to the pump case of electric fuel punp 1, and this elastic pressure is the axial constraint power of carrier structure to electric fuel punp 1.Therefore circlip structure 6 elasticity are better, when work vibration damping, shock sucking function arranged, and can protect electric fuel punp 1 and reduce the noise of its work.
The present invention is not limited to embodiment discussed above.More than the description of the specific embodiment is intended in order to describe and illustrate the technical scheme that the present invention relates to.Based on the conspicuous conversion of the present invention enlightenment or substitute and also should be considered to fall into protection scope of the present invention.The above specific embodiment is used for disclosing best implementation method of the present invention, so that those of ordinary skill in the art can use numerous embodiments of the present invention and multiple alternative reaches purpose of the present invention.
Claims (5)
1. an electric fuel pump bracket is characterized in that, comprising:
Bracket, bottom bracket, electric fuel punp are installed in the inside of bracket and bottom bracket, assemble connection mutually by buckle structure between the upper and lower carriage, provide jointly to electric fuel punp radially with axial constraint;
The oil suction of electric fuel punp and the oil inlet of bottom bracket cooperatively interact;
Bracket is provided with the circlip structure of ring-type, and the circlip structure of bracket has downward elastic restraint power in the upper end of electric fuel punp to electric fuel punp.
2. electric fuel pump bracket as claimed in claim 1 is characterized in that, electric fuel pump bracket matches with oil storage barrel by three T shape snap-ons on the bracket, is fixed in the oil storage barrel.
3. electric fuel pump bracket as claimed in claim 1, it is characterized in that, three buckle structures, 120 ° of rectangular distributions of each interval are in a circumferential direction arranged on the bracket, bottom bracket has three elasticity window structures, 120 ° of rectangular distributions of each interval in a circumferential direction, buckle structure on the bracket assembles mutually with the elasticity window structure of bottom bracket and is connected, and the elasticity window structure in fitting process on the bottom bracket is subjected to the outside thrust of the buckle of bracket can produce outside elastic deformation.
4. electric fuel pump bracket as claimed in claim 1 is characterized in that, the circlip structure of bracket is made of three sections thin elastic arms of 120 ° of well-distributeds of each interval.
5. the assembly method of electric fuel pump bracket as claimed in claim 1 is characterized in that, may further comprise the steps:
Electric fuel punp and bottom bracket are assembled, the oil suction of electric fuel punp is pressed into the oil inlet of bottom bracket;
Bracket is entangled electric fuel punp toward pressing down from the top, in the process that bracket presses down, the buckle of bracket can strut the elasticity window structure of bottom bracket;
When being seated, the circlip structure of bracket can be subjected to the thrust that the pump case of electric fuel punp makes progress and produce elastic deformation;
Upper and lower carriage is seated, and the buckle of bracket snaps in the rectangular window of bottom bracket elasticity window structure, and at this moment, three elasticity window structures of bottom bracket all return to the state before the distortion, and window structure fastens the buckle of bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910057878.8A CN101830165B (en) | 2009-09-04 | 2009-09-04 | Electric fuel pump bracket and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910057878.8A CN101830165B (en) | 2009-09-04 | 2009-09-04 | Electric fuel pump bracket and assembling method |
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| Publication Number | Publication Date |
|---|---|
| CN101830165A true CN101830165A (en) | 2010-09-15 |
| CN101830165B CN101830165B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910057878.8A Active CN101830165B (en) | 2009-09-04 | 2009-09-04 | Electric fuel pump bracket and assembling method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434341A (en) * | 2011-12-13 | 2012-05-02 | 联合汽车电子有限公司 | Fuel pump bracket structure and assembling method thereof |
| CN107363535A (en) * | 2017-08-10 | 2017-11-21 | 广西淞森车用部件有限公司 | The ring flange of electric fuel punp and the assembling device of oil storage tub assembly and assembly method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201568176U (en) * | 2009-09-04 | 2010-09-01 | 联合汽车电子有限公司 | Bracket of electric fuel oil pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0754483B1 (en) * | 1995-02-03 | 2004-02-04 | Denso Corporation | Filter |
| US7475678B2 (en) * | 2005-03-17 | 2009-01-13 | Walbro Engine Management, L.L.C. | Integrated fuel delivery system |
| CN201152214Y (en) * | 2007-12-28 | 2008-11-19 | 联合汽车电子有限公司 | Oil pump carrier frame and pressure regulator valve carrier frame integration structure |
-
2009
- 2009-09-04 CN CN200910057878.8A patent/CN101830165B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201568176U (en) * | 2009-09-04 | 2010-09-01 | 联合汽车电子有限公司 | Bracket of electric fuel oil pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434341A (en) * | 2011-12-13 | 2012-05-02 | 联合汽车电子有限公司 | Fuel pump bracket structure and assembling method thereof |
| CN107363535A (en) * | 2017-08-10 | 2017-11-21 | 广西淞森车用部件有限公司 | The ring flange of electric fuel punp and the assembling device of oil storage tub assembly and assembly method |
| CN107363535B (en) * | 2017-08-10 | 2023-05-05 | 广西淞森车用部件有限公司 | Device and method for assembling flange plate and oil storage barrel component of electric fuel pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101830165B (en) | 2014-03-12 |
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