CN205744369U - The outlet port cap assemblies of diaphragm type electric vacuum pump for automobile - Google Patents
The outlet port cap assemblies of diaphragm type electric vacuum pump for automobile Download PDFInfo
- Publication number
- CN205744369U CN205744369U CN201620659988.7U CN201620659988U CN205744369U CN 205744369 U CN205744369 U CN 205744369U CN 201620659988 U CN201620659988 U CN 201620659988U CN 205744369 U CN205744369 U CN 205744369U
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- CN
- China
- Prior art keywords
- outlet port
- pump housing
- cap assemblies
- level
- port cap
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- Expired - Fee Related
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Abstract
This utility model belongs to automobile brake force aid system field, particularly relates to the outlet port cap assemblies of a kind of diaphragm type electric vacuum pump for automobile.The utility model discloses the outlet port cap assemblies of diaphragm type electric vacuum pump for automobile, including the pump housing, entering and exhaust channel is offered on the pump housing, outlet port cap assemblies it is provided with at the top of the pump housing, outlet port cap assemblies and the installed surface of the pump housing are provided with sealing gasket and carry out waterproof, outlet port cap assemblies includes end cap and guard shield, end cap forms first-level buffer chamber and level 2 buffering chamber with guard shield, first-level buffer chamber is positioned at level 2 buffering intracavity portion, it is provided with end cap check valve at first-level buffer intracavity, level 2 buffering intracavity has sound-absorbing sponge, gas is discharged by steam vent by the entering and exhaust channel of the pump housing again.The beneficial effects of the utility model are: noise is less, and safety coefficient is higher, and sealing effectiveness is more preferable.
Description
Technical field
This utility model belongs to automobile brake force aid system field, particularly relates to a kind of diaphragm type electric vacuum pump for automobile
Outlet port cap assemblies.
Background technology
Along with the minimizing of non-renewable resources, Abgasgesetz increasingly stringent, energy-saving and emission-reduction, protection environment is society
Urgent needs.The development of new-energy automobile will be the Main way solving discharge, the conventional truck gas handling system by electromotor
Reach the vacuum level requirements of vacuum booster, and new-energy automobile lacks vacuum without electromotor, braking automobile vacuum booster
Power source, brakes cisco unity malfunction.It is therefore desirable to one is independent of engine power, and the dress of vacuum source can be provided in good time
Put.Existing electric vacuum pump there is problems in that 1. poor sealing performances, it is contemplated that the graphite powder excavationg pump after dry friction
Body, gas outlet must be towards little, without waterproof measure, to being provided with strict demand；2, noise is big, owing to part drives at eccentric stiffener
Lower high speed rotating or reciprocating motion, phase mutual friction and impact between part, noise is bigger.
Summary of the invention
The purpose of this utility model is to solve techniques discussed above problem, it is provided that a kind of noise is less, safety coefficient
Higher, the outlet port cap assemblies of sealing effectiveness more preferable diaphragm type electric vacuum pump for automobile, its technical scheme is as follows:
The outlet port cap assemblies of diaphragm type electric vacuum pump for automobile, including the pump housing, it is characterised in that the described pump housing
On offer entering and exhaust channel, be provided with outlet port cap assemblies at the top of the pump housing, the installation of outlet port cap assemblies and the pump housing
Face is provided with sealing gasket and carries out waterproof, and outlet port cap assemblies includes end cap and guard shield, end cap and guard shield formed first-level buffer chamber and
Level 2 buffering chamber, first-level buffer chamber is positioned at level 2 buffering intracavity portion, is provided with end cap check valve, level 2 buffering at first-level buffer intracavity
Intracavity has sound-absorbing sponge, and gas is discharged by steam vent by the entering and exhaust channel of the pump housing again.
Optimal way is, described sound-absorbing sponge is noise reduction PU sponge.
The outlet port cap assemblies of the diaphragm type electric vacuum pump for automobile that this utility model provides, aerofluxus is by the pump housing
Entering and exhaust channel, discharges through outlet side cap assemblies, is provided with check valve, prevents water from carrying out pump body in the cap assemblies of outlet side；
Outlet port cap assemblies, cover plate forms first-level buffer chamber and level 2 buffering chamber, is filled with suction at level 2 buffering intracavity
Sound sponge；So that noise is less.
Left and right end-cap assembly and pump housing installed surface are provided with O-ring seal, are provided with sealing between outlet port cap assemblies and the pump housing
Pad, can effectively prevent dust, and rainwater enters interiors of products, and degree of protection reaches IP67.
The beneficial effects of the utility model are: noise is less, and safety coefficient is higher, and sealing effectiveness is more preferable.
Accompanying drawing explanation
Fig. 1 is diaphragm type electric vacuum pump for automobile schematic diagram；
Fig. 2 is the cut-away view of diaphragm type electric vacuum pump for automobile；
Fig. 3 is left and right end-cap assembly schematic diagram；
Fig. 4 is piston component schematic diagram；
Fig. 5 is the cut-away view of piston component；
Fig. 6 is this utility model schematic diagram；
Fig. 7 is that mandrel assembles schematic diagram with balance weight；
Fig. 8 is the enlarged diagram of round-corner transition groove.
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 8 specific illustrative embodiment:
Diaphragm type electric vacuum pump for automobile, including motor 1, the pump housing 4, left and right end-cap assembly 2, piston component 3, band is eccentric
The outlet port cap assemblies 7 of the mandrel 5 in hole, the balance weight 6 coordinated with mandrel 5, band check valve and sound-absorbing sponge.Left and right end cap group
The internal shape chamber of part 2 is divided into suction muffler 24 and discharge chamber 25, and the pump housing 4 is provided with entering and exhaust channel 41, is respectively communicated with left and right end-cap assembly
Suction muffler 24, discharge chamber 25, side plate 23 be provided with two groups of holes 26,27 respectively with suction muffler 24, discharge chamber 25 communicates, 22 points of check valve
Do not controlling the unidirectional gas flow of suction and discharge；It is embedding that 2 symmetrically arranged piston components 3 are combined metal by diaphragm 31 with vulcanization
Part 32, is pressed with bearing 33 in metallic piston bar 34, then is connected by mandrel 5, and mandrel 5 is interference with the output shaft of motor 1
Coordinating, mandrel 5 is eccentric rotary under the driving of motor 1, and band piston component 3 moves back and forth；Outlet port cap assemblies 7 and the pump housing 4
Installed surface is provided with sealing gasket 71 and carries out waterproof, and end cap 72 and guard shield 75 form first-level buffer chamber 77 and level 2 buffering chamber 78, one
Being provided with end cap check valve 73 in level cushion chamber, level 2 buffering intracavity has sound-absorbing sponge 74, the gas entering and exhaust channel 41 by the pump housing 4
It is discharged into outside product by steam vent 76 again.
This product work principle: motor 1 output shaft drives mandrel 5 to carry out eccentric rotary, and then drives piston rod 34 around electricity
Machine 1 center carries out circumference and moves, and it is consistent with motor output shaft that balance weight 6 guarantees to rotate center of gravity, reaches steadily to operate.Outside diaphragm 31
Circle is pressed on the pump housing 4 by side plate 23, and diaphragm 31 inside carries out elastic deformation under the pulling of piston rod 34 and moves, when turning to
At stop, when the shape chamber 35 within diaphragm 31 is maximum, being in the state of bleeding, shape chamber 35 is internal is negative pressure, produces suction, and opposed
It is minimum that piston component is in shape chamber volume, is exhaust condition, shape intracavity no pressure, takes out (row) strength and obtains asymmetric cylinder compensation, low
Energy consumption.Being under the state of bleeding, check valve 22 is opened, and suction muffler 24 is communicated with the shape chamber 35 within diaphragm 31 by hole 26, single
Closing to valve 22, discharge chamber 25 and hole 27 are in blocking state；Being under exhaust condition, check valve 22 is opened, and discharge chamber 25 passes through
Hole 27 communicates with the shape chamber 35 within diaphragm 31, and check valve 22 is closed, and suction muffler and hole 26 are in blocking state.Suction muffler 24 passes through
The pump housing 4 air flue communicates with force aid system for braking vacuum tank, and discharge chamber 25 enters into pump body by entering and exhaust channel 41.At air pressure
Bottom end cover check valve 73 is opened, and gas is discharged into the first-level buffer intracavity of end cap 72 and guard shield 75 composition by steam vent 76, then
After being absorbed by the sound-absorbing sponge 74 of level 2 buffering intracavity, finally it is discharged into the external world.End cap check valve 73 prevents extraneous water simultaneously
Enter in pump.
The upper end of described mandrel 5 offers lower seam 51, and balance weight 6 offers seam 61, and balance weight press-fits
Time on mandrel, upper seam and lower seam coupling combine.
Being provided with round-corner transition groove 42 on the described pump housing 4, side plate compresses the outer ring of diaphragm on the pump housing, diaphragm interior
It is low friction trace movement with groove that circle has part to be arranged at round-corner transition groove interior.
The each fitting surface of this product is equipped with sealing member, it is ensured that sealing reliably, reaches degree of protection IP67；Due to opposed
Layout diaphragm, running balance, noise is low, without friction, the characteristic that the speed of exhaust is fast.Can ensure that normal use reliably service life
Under, car load travels more than 220,000 kilometers fault-free.
Claims (2)
1. the outlet port cap assemblies of diaphragm type electric vacuum pump for automobile, including the pump housing, it is characterised in that on the described pump housing
Offer entering and exhaust channel, at the top of the pump housing, be provided with the installed surface of outlet port cap assemblies, outlet port cap assemblies and the pump housing
Being provided with sealing gasket and carry out waterproof, outlet port cap assemblies includes that end cap and guard shield, end cap form first-level buffer chamber and two with guard shield
Level cushion chamber, first-level buffer chamber is positioned at level 2 buffering intracavity portion, is provided with end cap check valve, level 2 buffering chamber at first-level buffer intracavity
Inside having sound-absorbing sponge, gas is discharged by steam vent by the entering and exhaust channel of the pump housing again.
2. the outlet port cap assemblies of diaphragm type electric vacuum pump for automobile as claimed in claim 1, it is characterised in that described
Sound-absorbing sponge be noise reduction PU sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620659988.7U CN205744369U (en) | 2016-06-29 | 2016-06-29 | The outlet port cap assemblies of diaphragm type electric vacuum pump for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620659988.7U CN205744369U (en) | 2016-06-29 | 2016-06-29 | The outlet port cap assemblies of diaphragm type electric vacuum pump for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744369U true CN205744369U (en) | 2016-11-30 |
Family
ID=57382362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620659988.7U Expired - Fee Related CN205744369U (en) | 2016-06-29 | 2016-06-29 | The outlet port cap assemblies of diaphragm type electric vacuum pump for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205744369U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952624A (en) * | 2016-06-29 | 2016-09-21 | 湖州安瑞能液压气动科技有限公司 | Air outlet end cover assembly of electric vacuum pump for diaphragm type automobile |
| CN107035670A (en) * | 2017-05-31 | 2017-08-11 | 瑞立集团瑞安汽车零部件有限公司 | A kind of Vehicular electric diaphragm vavuum pump |
-
2016
- 2016-06-29 CN CN201620659988.7U patent/CN205744369U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952624A (en) * | 2016-06-29 | 2016-09-21 | 湖州安瑞能液压气动科技有限公司 | Air outlet end cover assembly of electric vacuum pump for diaphragm type automobile |
| CN107035670A (en) * | 2017-05-31 | 2017-08-11 | 瑞立集团瑞安汽车零部件有限公司 | A kind of Vehicular electric diaphragm vavuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20190629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |