CN109915370A - A kind of high power noise reduction electric vacuum pump - Google Patents
A kind of high power noise reduction electric vacuum pump Download PDFInfo
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- CN109915370A CN109915370A CN201910290564.6A CN201910290564A CN109915370A CN 109915370 A CN109915370 A CN 109915370A CN 201910290564 A CN201910290564 A CN 201910290564A CN 109915370 A CN109915370 A CN 109915370A
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- stator
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- reduction
- gland
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Abstract
The invention discloses a kind of high power noise reduction electric vacuum pumps, including motor and the pump housing, the pump housing includes stator seat, stator, stator cover, stator seat, stator, stator cover is fixed together by bolt sequence, stator seat is equipped with air inlet duct, stator cover is equipped with air discharge duct, stator is equipped with multiple bolt holes, gland is equipped at the top of the pump housing, with the noise-reduction pad of gland cooperation, the noise-reduction pad is set to gland inner cavity, gland is separated into top silencing cavity by the noise-reduction pad, stator described in lower buffer chamber is circular ring shape, the auxiliary exhaust passageways parallel with annulus axis are equipped in the stator circumference wall, the stator seat is equipped with auxiliary exhaust slot corresponding with air discharge duct in stator cover, the auxiliary exhaust slot and auxiliary exhaust passageways one end is equipped with interface channel.The configuration of the present invention is simple, long service life, small in size, power is big, is suitable for pure electric vehicle and uses.
Description
Technical field
The present invention relates to technical field of automobile parts more particularly to a kind of high power noise reduction electric vacuum pumps.
Background technique
As petroleum resources are reduced increasingly, emission regulation is increasingly strict, and energy-saving and emission-reduction have become the pass of Automobile Design consideration
Key factor.Tradition machinery formula vacuum pump power consumption is big, and noise is rung, and it is poor to continue working in engine operation process ability,
Be no longer satisfied current energy consumption of vehicles demand.Meanwhile the development of pure electric vehicle, it needs a kind of motor-driven independent of starting
Power, and the device for braking required vacuum can be provided in due course.Existing electric vacuum pump is there are some, in particular, by installation dimension
Limitation, some position dimensions for needing relatively high power vacuum pump are merely able to place the small size vacuum pump of smaller power, then,
How under the premise of not changing vacuum pump outer dimension, the power for improving vacuum pump is exactly a urgent problem to be solved.
Summary of the invention
The purpose of the present invention is to solve above-mentioned technical problem, provide that a kind of structure is simple, long service life, volume
It is small, power is big, the high power noise reduction electric vacuum pump used suitable for pure electric vehicle.
To achieve the goals above, the present invention adopts the following technical scheme that, a kind of high power noise reduction electric vacuum pump, including
Motor and the pump housing, the pump housing include stator seat, stator, stator cover, and stator seat, stator, stator cover are fixed on one by bolt sequence
Rise, stator seat is equipped with air inlet duct, and stator cover is equipped with air discharge duct, and stator is equipped with multiple bolt holes, be equipped at the top of the pump housing gland, with
The noise-reduction pad of gland cooperation, the noise-reduction pad are set to gland inner cavity, and gland is separated by the noise-reduction pad
Top silencing cavity, lower buffer chamber, the noise-reduction pad and are equipped with band through-hole cylinder at center, set on the outside of the noise-reduction pad
There is an annulus wall, the annulus wall and with the connecting plate for being equipped with undaform section between through-hole cylinder is set on the outside of the annulus wall
There is sealing ring, the exhaust passage of the vacuum pump successively passes through lower buffer chamber, band through-hole cylinder, top silencing cavity, described
Lower buffer chamber includes at least two dashpots；The stator is circular ring shape, is equipped in the stator circumference wall and annulus axle
The parallel auxiliary exhaust passageways of line, the stator seat is equipped with auxiliary exhaust slot corresponding with air discharge duct in stator cover, described
Auxiliary exhaust slot and auxiliary exhaust passageways one end are equipped with interface channel, and the stator cover is equipped with corresponding with auxiliary exhaust passageways
Gas vent, the auxiliary exhaust passageways other end are connected to stator cover gas vent, and the auxiliary exhaust passageways both ends are also set respectively
There is link slot to be connected to bolt hole.
Preferably, being arc-shaped, the buffering trench bottom connection at the top of the rebasing portion's dashpot of the noise-reduction.
Preferably, the noise-reduction pad top portion is equipped with a silencing groove, the noise reduction trench bottom is arc-shaped.
The exhaust passage of this programme electric vacuum pump is needed through overpressure cap inner cavity, since air flows very in electric vacuum pump
Fastly, it is easy to produce noise, for this purpose, this programme uses noise-reduction pad, is extended, sluggish speed air flow, air velocity is fallen
After coming, noise is reduced by naturally；Specific noise-reduction structure includes that gas initially enters lower buffer chamber in vacuum pump, by
At least two dashpots in cushion chamber accommodate and extend air path length, give air first time reduction of speed, after air reduction of speed from
Through-hole enters top silencing cavity, is accommodated by silencing cavity and extended air path length, to discharging after second of reduction of speed of air；Noise reduction
It can be seen that on the sectional view of silencing pad, lower buffer chamber, top silencing cavity separate shape by the connecting plate and annulus wall in S type section
At；For guaranteeing that lower buffer chamber, top silencing cavity are only connected to by through-hole, will not generate gas leak phenomenon (will increase and make an uproar sealing ring
Sound)；In the prior art, what stator seat upper air was slotted is closely located at pump chamber maximum volume, and the position of fluting is vented in stator cover
It sets close at pump chamber minimum volume, exhaust passage is exactly from pump chamber minimum volume to stator cover air discharge duct；Therefore, this programme is new
Increase two ventilation gas channels, i.e., two through-holes be set on stator circumference wall as auxiliary exhaust passageways, with pump chamber most
Air discharge duct is opened up at small size on corresponding stator seat, and is connected to auxiliary exhaust passageways, auxiliary exhaust passageways are connected to stator again
The gas vent newly increased is covered, material is thus formed newly-increased venting channels；In addition, utilizing fixing bolt existing on stator
Through-hole also can use as exhaust passage, be vented equal to expanding since there are gaps with inner wall in bolt hole for bolt
Exhaust pumping efficiency can be improved in the case where electric vacuum pump increases power without changing other structures in channel.
The beneficial effect of this programme is: structure is simple, long service life, small in size, power is big, makes suitable for pure electric vehicle
With.
Detailed description of the invention
Fig. 1 is a kind of Structure explosion diagram of the invention.
Fig. 2 is noise-reduction mat structure schematic diagram of the invention.
Fig. 3 is stator seat structural schematic diagram of the invention.
Fig. 4 is stator structure schematic diagram of the invention.
Fig. 5 is stator cover structural schematic diagram of the invention.
In figure: 1, motor 2, the pump housing 3, stator seat 4, stator
5, stator cover 6, air inlet duct 7, air discharge duct 8, bolt hole 9, gland
10, noise-reduction pad 11, top silencing cavity 12, lower buffer chamber
13, band through-hole cylinder 14, annulus wall 15, connecting plate 16, sealing ring
17, dashpot 18, auxiliary exhaust passageways 19, auxiliary exhaust slot
20, interface channel 21, gas vent 22, link slot 23, silencing groove.
Specific embodiment
The present invention is further explained with reference to the accompanying drawing:
As shown in Figs. 1-5, a kind of high power noise reduction electric vacuum pump, including motor 1 and the pump housing 2, the pump housing 2 include stator seat
3, stator 4, stator cover 5, stator seat 3, stator 4, stator cover 5 are fixed together by bolt sequence, and stator seat 3 is equipped with air inlet duct
6, stator cover 5 is equipped with air discharge duct 7, and stator 4 is equipped with multiple bolt holes 8, cooperates at the top of the pump housing 2 equipped with gland 9, with gland 9
Noise-reduction pad 10, noise-reduction pad 10 be set to 9 inner cavity of gland, noise-reduction pad 10 by gland 9 be separated into top silencing cavity 11,
Lower buffer chamber 12, noise-reduction pad and are equipped with band through-hole cylinder 13 at 10 centers, are equipped with annulus wall 14 on the outside of noise-reduction pad 10,
Annulus wall 14 and with the connecting plate 15 for being equipped with undaform section between through-hole cylinder 13, sealing ring 16 is equipped on the outside of annulus wall 14,
The exhaust passage of vacuum pump successively passes through lower buffer chamber 12, band through-hole cylinder 13, top silencing cavity 11, and lower buffer chamber 12 wraps
Include at least two dashpots 17；Stator 4 is circular ring shape, and it is logical to be equipped with the auxiliary exhaust parallel with annulus axis in 4 circumferential wall of stator
Road 18, stator seat 3 are equipped with auxiliary exhaust slot 19 corresponding with air discharge duct 7 in stator cover 5, and auxiliary exhaust slot 19 and auxiliary exhaust are logical
18 one end of road is equipped with interface channel 20, and stator cover 5 is equipped with gas vent 21 corresponding with auxiliary exhaust passageways 18, auxiliary exhaust passageways
18 other ends are connected to 5 gas vent 21 of stator cover, and 18 both ends of auxiliary exhaust passageways further respectively have link slot 22 and bolt hole 8
Connection；
It is arc-shaped, 17 bottom of dashpot connection that noise-reduction, which pads at the top of 10 bottom dashpots 17,；
Noise-reduction pads 10 tops and is equipped with a silencing groove 23, and 23 bottom of silencing groove is arc-shaped.
Specific embodiment:
Gland 9, noise-reduction pad 10 such as Fig. 1 are adjacent to sealing, and when vacuum pump work, gas initially enters lower part in vacuum pump
Cushion chamber 12 is accommodated by two dashpots 17 in cushion chamber and is extended air path length, gives air first time reduction of speed, air
Enter top silencing cavity 11 from band 13 through-hole of through-hole cylinder after reduction of speed, is accommodated by silencing groove 23 and extended air path length, give
It is discharged after second of reduction of speed of air；
Stator seat 3, stator 4, stator cover 5 are fixed together by bolt sequence and form pump chamber, vacuum pump electricity in inside
After machine starting works normally, gas is inhaled into stator apparatus through air inlet duct 6, is carried gas by blade and is entered stator apparatus pump chamber
At minimum volume, gas through in stator cover 5 air discharge duct 7 be discharged, and can pass through simultaneously auxiliary exhaust slot 19, interface channel 20,
Auxiliary exhaust passageways 18 and bolt hole 8 are discharged from gas vent 21.
Claims (3)
1. a kind of high power noise reduction electric vacuum pump, including motor and the pump housing, the pump housing includes stator seat, stator, stator cover, stator
Seat, stator, stator cover are fixed together by bolt sequence, and stator seat is equipped with air inlet duct, and stator cover is equipped with air discharge duct, and stator is set
There are multiple bolt holes, gland, the noise-reduction pad with gland cooperation is equipped at the top of the pump housing, which is characterized in that the noise reduction
Silencing pad is set to gland inner cavity, and gland is separated into top silencing cavity, lower buffer chamber by the noise-reduction pad, and the noise reduction disappears
Band through-hole cylinder is equipped at sound pad center, the noise-reduction pad outside is equipped with annulus wall, the annulus wall and with through-hole circle
Be equipped with the connecting plate in undaform section between column, be equipped with sealing ring on the outside of the annulus wall, the exhaust passage of the vacuum pump according to
Secondary to pass through lower buffer chamber, band through-hole cylinder, top silencing cavity, the lower buffer chamber includes at least two dashpots；Institute
The stator stated is circular ring shape, is equipped with the auxiliary exhaust passageways parallel with annulus axis, the stator in the stator circumference wall
Seat is equipped with auxiliary exhaust slot corresponding with air discharge duct in stator cover, and the auxiliary exhaust slot is equipped with auxiliary exhaust passageways one end
Interface channel, the stator cover be equipped with gas vent corresponding with auxiliary exhaust passageways, the auxiliary exhaust passageways other end with
The connection of stator cover gas vent, the auxiliary exhaust passageways both ends further respectively have link slot and are connected to bolt hole.
2. a kind of high power noise reduction electric vacuum pump according to claim 1, which is characterized in that the noise-reduction pad
It is arc-shaped, the buffering trench bottom connection at the top of the dashpot of bottom.
3. a kind of high power noise reduction electric vacuum pump according to claim 1, which is characterized in that the noise-reduction pad
Top portion is equipped with a silencing groove, and the noise reduction trench bottom is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290564.6A CN109915370B (en) | 2019-04-11 | 2019-04-11 | High-power silencing electric vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290564.6A CN109915370B (en) | 2019-04-11 | 2019-04-11 | High-power silencing electric vacuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109915370A true CN109915370A (en) | 2019-06-21 |
| CN109915370B CN109915370B (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910290564.6A Active CN109915370B (en) | 2019-04-11 | 2019-04-11 | High-power silencing electric vacuum pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN109915370B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017290A (en) * | 2021-11-24 | 2022-02-08 | 厦门坤锦电子科技有限公司 | Self-drainage structure and vertical rotary diaphragm vacuum pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151890A (en) * | 1995-11-30 | 1997-06-10 | Sanyo Electric Co Ltd | Hermetic type rotary compressor |
| CN101876309A (en) * | 2010-07-30 | 2010-11-03 | 丹佛斯制冷设备(天津)有限公司 | Exhaust structure and piston compressor comprising same |
| CN103306979A (en) * | 2013-06-28 | 2013-09-18 | 常州市东南电器电机有限公司 | Electronic vacuum pump for new energy vehicle brake vacuum booster |
| CN205349727U (en) * | 2016-01-19 | 2016-06-29 | 浙江万安泵业有限公司 | Two effect structures of vacuum pump |
| KR20170001491U (en) * | 2017-02-15 | 2017-04-27 | 정안철강주식회사 | Vacuum pump for vehicles |
| CN206175169U (en) * | 2016-11-02 | 2017-05-17 | 杭州斯柯特机电有限公司 | Vacuum pump noise elimination sleeve |
| CN108799122A (en) * | 2018-06-13 | 2018-11-13 | 宁波沃德纳汽车部件有限公司 | A kind of novel electron vacuum pump applied to automobile |
| CN109296532A (en) * | 2018-12-14 | 2019-02-01 | 重庆工商大学 | Blade electronics aspiration pump |
-
2019
- 2019-04-11 CN CN201910290564.6A patent/CN109915370B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151890A (en) * | 1995-11-30 | 1997-06-10 | Sanyo Electric Co Ltd | Hermetic type rotary compressor |
| CN101876309A (en) * | 2010-07-30 | 2010-11-03 | 丹佛斯制冷设备(天津)有限公司 | Exhaust structure and piston compressor comprising same |
| CN103306979A (en) * | 2013-06-28 | 2013-09-18 | 常州市东南电器电机有限公司 | Electronic vacuum pump for new energy vehicle brake vacuum booster |
| CN205349727U (en) * | 2016-01-19 | 2016-06-29 | 浙江万安泵业有限公司 | Two effect structures of vacuum pump |
| CN206175169U (en) * | 2016-11-02 | 2017-05-17 | 杭州斯柯特机电有限公司 | Vacuum pump noise elimination sleeve |
| KR20170001491U (en) * | 2017-02-15 | 2017-04-27 | 정안철강주식회사 | Vacuum pump for vehicles |
| CN108799122A (en) * | 2018-06-13 | 2018-11-13 | 宁波沃德纳汽车部件有限公司 | A kind of novel electron vacuum pump applied to automobile |
| CN109296532A (en) * | 2018-12-14 | 2019-02-01 | 重庆工商大学 | Blade electronics aspiration pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017290A (en) * | 2021-11-24 | 2022-02-08 | 厦门坤锦电子科技有限公司 | Self-drainage structure and vertical rotary diaphragm vacuum pump |
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| CN109915370B (en) | 2021-02-12 |
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