CN106224201A - Vacuum pump of electric automobile - Google Patents

Vacuum pump of electric automobile Download PDF

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Publication number
CN106224201A
CN106224201A CN201610795317.8A CN201610795317A CN106224201A CN 106224201 A CN106224201 A CN 106224201A CN 201610795317 A CN201610795317 A CN 201610795317A CN 106224201 A CN106224201 A CN 106224201A
Authority
CN
China
Prior art keywords
check valve
pump case
construction opening
cylinder sleeve
electric automobile
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
Application number
CN201610795317.8A
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Chinese (zh)
Other versions
CN106224201B (en
Inventor
吴鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG PNIAD MOTOR VEHICLE PARTS Co.,Ltd.
Original Assignee
Wenzhou Pinda Locomotive Parts Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wenzhou Pinda Locomotive Parts Co Ltd filed Critical Wenzhou Pinda Locomotive Parts Co Ltd
Priority to CN201610795317.8A priority Critical patent/CN106224201B/en
Publication of CN106224201A publication Critical patent/CN106224201A/en
Application granted granted Critical
Publication of CN106224201B publication Critical patent/CN106224201B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10Adaptations or arrangements of distribution members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121Casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/127Mounting of a cylinder block in a casing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

The present invention relates to a kind of auto parts machinery, particularly to a kind of vacuum pump of electric automobile.Technical scheme is: a kind of vacuum pump of electric automobile, include motor, pump case, pump case are provided with construction opening, it is provided with piston cup in being provided with check valve and cylinder sleeve, cylinder sleeve at construction opening, piston cup is connected by bent axle with the motor shaft of motor by connecting rod, the longitudinal direction of pump case is respectively arranged at two ends with construction opening, being respectively equipped with the cylinder sleeve and check valve being connected with pump case at construction opening, the transverse ends of pump case is closed end face;Being arranged with outer peripheral face and inlet channel and the check valve sealing gasket of the inner wall sealing of exhaust passage in the inlet channel of check valve and exhaust passage respectively, breather check valve valve block and exhaust check valve sheet are respectively arranged on check valve gasket seal.Use technique scheme, it is provided that a kind of concentricity when keeping connecting rod and pump case construction opening to assemble, good airproof performance, reduction noise, the vacuum pump of electric automobile of simple in construction.

Description

Vacuum pump of electric automobile
Technical field
The present invention relates to a kind of auto parts machinery, particularly to a kind of vacuum pump of electric automobile.
Background technology
Electric vacuum pump is the vacuum source of vacuum automobile water brake, force aid system, its mainly by motor, be set up in electricity Pump case on machine, the longitudinal direction of pump case are respectively arranged at two ends with construction opening, be respectively equipped with at two construction openings check valve and cylinder sleeve and Motor linkage and the piston cup moved back and forth in can be at cylinder sleeve, piston cup by the motor shaft of connecting rod and motor by song Axle connects, and one end that connecting rod is connected with bent axle is had two panels and becomes ringent holding piece, fixed by screw between two holding pieces Promoting connecting rod to lock with bent axle, check valve is provided with the pipeline being connected with external equipment.
Installing hole is offered on the sidewall that traditional pump case is corresponding with connecting rod holding piece, during assembling, first will even Bar is connected with motor shaft by bent axle, installs pump case, then extended in pump case by installing hole by specific purpose tool on motor Screw at the holding piece of connecting rod is implemented locking.During assembling, although concentric between connecting rod with pump case construction opening Degree is corrected, but can cause connecting rod and rock when the locking on holding piece is implemented locking by specific purpose tool, makes good same of correction Heart degree changes.Such structure and assembling mode can cause piston cup leather cup, and in cylinder sleeve, all directions stress is not With, easily cause the local abrasion aggravation that stress is big, make product failure, thus cannot help for the more preferable vacuum of internal car systems Power.And the installing hole on pump case needs after stating assembling on the implementation by blocking, easily occur at this closure revealing.
The inlet portion office of traditional check valve is provided with check valve pad, and electric vacuum pump is during evacuation, single To producing lasting collision between valve gasket meeting and check valve, bigger noise can be produced during collision, it will usually at check valve Exhaust portion office arranges noise reduction valve, but, noise reduction valve only can reduce noise to a certain extent, does not eliminate from root and makes an uproar Sound.And traditional noise reduction valve is independently installed part on check valve, the uniformity of its processing and product is difficult to ensure that.
Summary of the invention
The deficiency existed for prior art, the invention provides a kind of when keeping connecting rod and pump case construction opening to assemble Concentricity, good airproof performance, reduction noise, the vacuum pump of electric automobile of simple in construction.
For achieving the above object, the technical scheme is that a kind of vacuum pump of electric automobile, include electricity Machine, the pump case being set up on motor, pump case are provided with construction opening, are provided with check valve and cylinder sleeve and motor connection at construction opening The piston cup moved back and forth in moving and can be at cylinder sleeve, piston cup is connected by bent axle by the motor shaft of connecting rod with motor Connecing, one end that connecting rod is connected with bent axle has two panels and becomes ringent holding piece, fixing even by securing member between two holding pieces Connecing, described check valve includes check valve body, be located on check valve body and with cylinder sleeve conducting connection chamber be connected chamber The inlet channel of conducting and exhaust passage, be provided with breather check valve valve block, the row of being provided with at passing away at described inlet channel Gas check valve sheet, it is characterised in that: the longitudinal direction of described pump case is respectively arranged at two ends with construction opening, be respectively equipped with at construction opening with Cylinder sleeve that pump case connects and check valve, the transverse ends of pump case is closed end face, and pump case has towards one end of motor can be with The bottom construction opening that motor is installed;Outer peripheral face and air inlet it is arranged with respectively in the inlet channel of described check valve and exhaust passage The check valve sealing gasket of the inner wall sealing of passage and exhaust passage, described breather check valve valve block and exhaust check valve sheet are respectively It is installed on check valve gasket seal.
Using technique scheme, longitudinal two ends of pump case are provided with the construction opening installed with cylinder sleeve and check valve enforcement, Transverse ends is Closed End, and connecting rod, during assembling, can first be implemented to install by such structure by bent axle and motor shaft, And the concentricity enforcement correction of the construction opening of connecting rod and pump case, then the holding piece on connecting rod is locked, also can be again after locking Secondary to concentricity enforcement check and correction, after concentricity keeps unanimously, then to implement to be connected with motor by pump case, so setting can ensure connecting rod Keep consistent with the concentricity of pump case construction opening, and do not have change during assembling, make making of this electric vacuum pump With more stable, and structure is the simplest, assembles more convenient, and is not provided with installing hole on Closed End so that it is seal Point reduces, and therefore, the sealing of pump case then can be more preferable;By be respectively provided with in the inlet channel of check valve and exhaust passage with The check valve gasket seal of all face seals of inlet channel and exhaust passage, and by breather check valve valve block and exhaust check valve Sheet is respectively arranged on check valve gasket seal, and in the course of the work, breather check valve valve block and exhaust check valve sheet are by original Collision of repeatedly implementing with check valve be changed to and collision implemented by check valve gasket seal, owing to check valve sealing gasket is flexible Rubber bodies, therefore, produce during collision between breather check valve valve block and exhaust check valve sheet and check valve gasket seal makes an uproar Sound is less or noiselessness, so setting implement improvement from the source that noise occurs, thus noise has been reduced or avoided Produce.
The present invention is further arranged to: the exhaust passage of check valve is provided with detachably with the end of check valve turned on outside Venting plug, venting plug offers the steam vent for exhaust passage and turned on outside, exhaust check valve sheet blocks up with aerofluxus It is provided with noise damping space between Tou, in this noise damping space, is provided with compression Pilus Caprae seu Ovis noise reduction block.
Wherein, compression Pilus Caprae seu Ovis noise reduction block limited step, one end of compression Pilus Caprae seu Ovis noise reduction block and this limit it are provided with in noise damping space Position step is conflicted, and the other end is conflicted with venting plug.
Using technique scheme, in check valve exhaust passage, the setting of noise damping space and venting plug can be used for placing Reduce the compression Pilus Caprae seu Ovis noise reduction block of noise, be used for reducing or eliminating noise produced by check valve air-intake valve plate on check valve, will Pilus Caprae seu Ovis is compressed into blocks, is on the one hand easily installed, and can control for the Pilus Caprae seu Ovis amount of inserting, it is to avoid occur inserting very few go out Existing noise reduction is poor, and input too much causes the closure of exhaust passage, makes the vacuum pump cannot the situation of normal extracting vacuum.And this Without separately setting the valve body for reducing or abate the noise in invention, this valve body is substituted by exhaust passage, and the parts of noise reduction are direct It is located in exhaust passage, not only reduces production cost, and make the measurer of inserting of noise damping space and Pilus Caprae seu Ovis have uniformity, just In processing.
The present invention is further set to: offer on check valve sealing gasket connecting hole and with breather check valve valve block or row The through hole of conducting when sealing or separate with breather check valve valve block or exhaust check valve sheet during the laminating of gas check valve sheet, air inlet is unidirectional Valve valve block and exhaust check valve sheet are provided with towards one end of check valve sealing gasket in extending to connecting hole and can be axial along connecting hole The connecting rod moved back and forth, connecting rod is connected at the other end of one end relative to breather check valve valve block and exhaust check valve sheet It is provided with limited block.
Technique scheme, so setting is used to make breather check valve valve block and exhaust check valve sheet can pass through check valve close While gasket is connected with check valve, also can make breather check valve valve block and exhaust check valve sheet can implementation normally, In the course of the work, breather check valve valve block and exhaust check valve sheet are made reciprocal by connecting rod thereon and check valve sealing gasket Mobile, when breather check valve valve block and exhaust check valve sheet are fitted with check valve sealing gasket, through hole is in sealing state, and enters When gas one-way valve plate and exhaust check valve sheet separate with check valve gasket seal, then air-flow can be into or out by through hole, The setting of limited block is then to prevent breather check valve valve block and exhaust check valve sheet from departing from check valve gasket seal.
The present invention is further set to: the inlet channel of check valve is relative to arranging the another of breather check valve valve block one end One end is upstream end, is provided with the entrance input channel of shape UNICOM perpendicular with inlet channel at this inlet end, enters input channel Place is provided with the entrance jointing of straight-tube shape, and the outer peripheral face of jointing is provided with several mounting grooves installed for sealing ring.
Use technique scheme, simple in construction is so set, in the course of processing, it is not necessary to as traditional vacuum pump Process the processing hole corresponding with inlet channel, thus decrease seal point, improve sealing property;Jointing is straight-tube shape, It is not only convenient for installing, and the sealing after installing is protected.
The present invention is further set to: the construction opening of pump case is positioned at the edge of cylinder sleeve installation place and is provided with short slot, cylinder sleeve And it is provided with pad between construction opening.
Use technique scheme, the setting of short slot be easy to assembling regulation and during later maintenance to cylinder sleeve and pad Remove.
The invention will be further described below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the embodiment of the present invention;
Fig. 2 is the decomposing schematic representation of the embodiment of the present invention;
Fig. 3 is the schematic perspective view of check valve in the embodiment of the present invention;
Fig. 4 is the structural representation of check valve in the embodiment of the present invention;
Fig. 5 is the A-A generalized section of Fig. 4;
Fig. 6 is the B-B generalized section of Fig. 4;
Fig. 7 is the structural representation of pump case in the embodiment of the present invention.
Detailed description of the invention
A kind of vacuum pump of electric automobile as shown in Fig. 1 Fig. 7, the pump case 2 include motor 1, being set up on motor 1, Pump case 2 is provided with construction opening 21, is provided with check valve 3 and cylinder sleeve 4 and motor 1 links and can be at cylinder sleeve 4 at construction opening 21 The piston cup 5 inside moved back and forth, piston cup 5 is connected by bent axle 12 with the motor shaft 11 of motor 1 by connecting rod 6, connecting rod 6 The one end being connected with bent axle 12 has two panels and becomes ringent holding piece 61, by securing member 62 between two holding pieces 61, such as spiral shell Nail is fixing to be connected, and check valve 3 includes check valve body 31, the connection chamber be located on check valve body 31 and turn on cylinder sleeve 4 32 be connected chamber 32 conducting inlet channel 33 and exhaust passage 34, be provided with breather check valve valve block 35 at inlet channel 33, row Going out and be provided with exhaust check valve sheet 36 at passage 34, the longitudinal direction of pump case 2 is respectively arranged at two ends with construction opening 21, and construction opening 21 is punished Not being provided with the cylinder sleeve 4 and check valve 3 being connected with pump case 2, the transverse ends of pump case 2 is closed end face 22, and pump case 2 is towards motor One end of 1 has the bottom construction opening 23 can installed with motor 1;Divide in the inlet channel 33 of check valve 3 and exhaust passage 34 It is not arranged with outer peripheral face and inlet channel 33 and the check valve sealing gasket 331 of the inner wall sealing of exhaust passage 34, breather check valve Valve block 35 and exhaust check valve sheet 36 are respectively arranged on check valve gasket seal 331.In such scheme, longitudinal the two of pump case 2 End is provided with the construction opening 21 installed with cylinder sleeve 4 and check valve 3 enforcement, and transverse ends is Closed End 22, and such structure exists During assembling, can first implement to install by bent axle 12 and motor shaft 11 by connecting rod 6, and the construction opening to connecting rod 6 with pump case 2 The concentricity of 21 implements correction, is then locked by the holding piece 61 on connecting rod 6, also again concentricity can be implemented school after locking Right, after concentricity keeps unanimously, then implement to be connected with motor 1 by pump case 2, so arrange and can ensure that connecting rod 6 is opened with pump case 2 installation The concentricity of mouth 21 keeps consistent, and does not haves change during assembling, and the use making this electric vacuum pump is more stable, And structure is the simplest, assemble more convenient, and be not provided with installing hole on Closed End 22 so that it is seal point reduces, because of This, the sealing of pump case 2 then can be more preferable;By arrange in the inlet channel 33 of check valve 3 and exhaust passage 34 respectively with enter The check valve gasket seal 331 of gas passage 33 and exhaust passage face seal in 34 weeks, and by breather check valve valve block 35 and aerofluxus Check valve sheet 36 is installed on this check valve gasket seal 331, and in the course of the work, breather check valve valve block 35 and aerofluxus are unidirectional Valve block is repeatedly implemented collision by original and check valve 3 and is changed to implement collision, due to check valve with check valve gasket seal 331 Sealing gasket 331 is flexible rubber bodies, therefore, and breather check valve valve block 35 and exhaust check valve sheet 36 and check valve gasket seal The noise produced during collision between 331 is less or noiselessness, so arranges and implements improvement from the source of generation noise, Thus the generation of noise has been reduced or avoided.
In embodiments of the present invention, the exhaust passage 34 of check valve 3 is provided with removable with the end of check valve 3 turned on outside The venting plug 7 unloaded, venting plug 7 offers the steam vent 71 for exhaust passage 34 with turned on outside, exhaust check valve sheet It is provided with noise damping space 37 between 36 and venting plug 7, in this noise damping space 37, is provided with compression Pilus Caprae seu Ovis noise reduction block 38.Noise damping space 37 Inside being provided with compression Pilus Caprae seu Ovis noise reduction block limited step 371, conflicts, separately with this limited step 371 in one end of compression Pilus Caprae seu Ovis noise reduction block 38 Conflict with venting plug 7 in one end.In check valve 3 exhaust passage 34, the setting of noise damping space 37 and venting plug 7 can be used for putting Put the compression Pilus Caprae seu Ovis noise reduction block 38 reducing noise, be used for reducing or eliminating produced by check valve 3 upper air one-way valve plate 35 Noise, is compressed into blocks by Pilus Caprae seu Ovis, is on the one hand easily installed, and can control for the Pilus Caprae seu Ovis amount of inserting, it is to avoid occurs filling out Enter very few to occur that noise reduction is poor, put into the closure too much causing exhaust passage 34, make the vacuum pump cannot normal extracting vacuum Situation.And without separately setting the valve body for reducing or abate the noise in the present invention, this valve body is substituted by exhaust passage 34, and fall The parts made an uproar are directly arranged in exhaust passage 34, not only reduce production cost, and make filling out of noise damping space 37 and Pilus Caprae seu Ovis Enter measurer and have uniformity, it is simple to processing.
In embodiments of the present invention, check valve sealing gasket 331 offers connecting hole 3311 and with breather check valve valve block 35 and exhaust check valve sheet 36 conducting when sealing or separate with breather check valve valve block 35 and exhaust check valve sheet 36 when fitting Through hole 3312, breather check valve valve block 35 and exhaust check valve sheet 36 are provided with towards one end of check valve sealing gasket 331 and extend to In connecting hole 3311 and the connecting rod 351 that can move along connecting hole 3311 axial reciprocating, connecting rod 351 is relative to unidirectional with air inlet Valve valve block 35 connects and is provided with limited block 352 at the other end of one end.In the course of the work, breather check valve valve block 35 and aerofluxus list Moved back and forth with check valve sealing gasket 331 by connecting rod 351 thereon to valve block 36, as breather check valve valve block 35 and row When gas check valve sheet 36 and check valve sealing gasket 331 are fitted, through hole 3312 is in sealing state, and breather check valve valve block 35 and When exhaust check valve sheet 36 separates with check valve gasket seal 331, then air-flow can be entered by through hole 3312, limited block 352 Arranging is then to prevent breather check valve valve block 35 and exhaust check valve sheet 36 from departing from check valve gasket seal 331.Need Illustrating, the material that check valve sealing gasket 331 is flexible processes.
The inlet channel 33 of the check valve 3 in the embodiment of the present invention is relative to arranging the another of breather check valve valve block 35 one end One end is upstream end, is provided with the entrance input channel 332 of shape UNICOM perpendicular with inlet channel 33 at this inlet end, enters input Being provided with the entrance jointing 333 of straight-tube shape at passage 332, the outer peripheral face of jointing 333 is provided with several for sealing ring The mounting groove 3331 installed.Simple in construction is so set, in the course of processing, it is not necessary to process as traditional vacuum pump and enter The processing hole of gas passage 33 correspondence, thus decrease seal point, improve sealing property;Jointing 333 is straight-tube shape, not only It is easily installed, and the sealing after installing is protected.
In embodiments of the present invention, the construction opening 21 of pump case 2 is positioned at the edge of cylinder sleeve 4 installation place and is provided with short slot 24, cylinder It is provided with pad 41 between set 4 and construction opening 21.When if necessary pad 41 and cylinder sleeve 4 being implemented dismounting, operator can be by hands Referring to insert in short slot 24, the edge enforcement extraction that will extend into the cylinder sleeve 4 in short slot 24 and pad 41 both may be used.

Claims (8)

1. a vacuum pump of electric automobile, includes motor, the pump case being set up on motor, pump case are provided with construction opening, peace The piston cup that dress opening part moves back and forth in being provided with check valve and cylinder sleeve and motor linkage and can be at cylinder sleeve, piston cup Being connected by bent axle with the motor shaft of motor by connecting rod, one end that connecting rod is connected with bent axle has two panels and becomes ringent clamping Sheet, connects by securing member is fixing between two holding pieces, and described check valve includes check valve body, is located at check valve body Connection chamber and the inlet channel being connected chamber conducting and exhaust passage above and with cylinder sleeve turned on, is provided with at described inlet channel Air inlet breather check valve valve block, is provided with exhaust check valve sheet at passing away, it is characterised in that: longitudinal two ends of described pump case are divided Not being provided with construction opening, be respectively equipped with the cylinder sleeve and check valve being connected with pump case at construction opening, the transverse ends of pump case is envelope Enclosed end face, pump case has, towards one end of motor, the bottom construction opening can installed with motor;The air inlet of described check valve is led to Outer peripheral face and inlet channel and the check valve sealing gasket of the inner wall sealing of exhaust passage, institute it is arranged with respectively in road and exhaust passage Breather check valve valve block and the exhaust check valve sheet stated are respectively arranged on check valve gasket seal.
Vacuum pump of electric automobile the most according to claim 1, it is characterised in that: the exhaust passage of described check valve is with unidirectional The end of valve turned on outside is provided with dismountable venting plug, venting plug offers for exhaust passage and turned on outside Steam vent, is provided with noise damping space between exhaust check valve sheet and venting plug, is provided with compression Pilus Caprae seu Ovis noise reduction block in this noise damping space.
Vacuum pump of electric automobile the most according to claim 2, it is characterised in that: it is provided with compression sheep in described noise damping space Hair noise reduction block limited step, conflicts with venting plug with the conflict of this limited step, the other end in one end of compression Pilus Caprae seu Ovis noise reduction block.
4. according to the vacuum pump of electric automobile described in claim 1 or 2 or 3, it is characterised in that: on described check valve sealing gasket Seal when offering connecting hole and fit with breather check valve valve block or exhaust check valve sheet or with breather check valve valve block or row When gas check valve sheet separates, the through hole of conducting, breather check valve valve block and exhaust check valve sheet are towards one end of check valve sealing gasket Be provided with the connecting rod extending in connecting hole and can moving along connecting hole axial reciprocating, connecting rod relative to breather check valve valve Sheet and exhaust check valve sheet connect and are provided with limited block at the other end of one end.
5. according to the vacuum pump of electric automobile described in claim 1 or 2 or 3, it is characterised in that: the inlet channel of described check valve It is upstream end relative to the other end arranging breather check valve valve block one end, at this inlet end, is provided with shape perpendicular with inlet channel The entrance input channel of UNICOM, enters the entrance jointing being provided with straight-tube shape at input channel, on the outer peripheral face of jointing It is provided with several mounting grooves installed for sealing ring.
Vacuum pump of electric automobile the most according to claim 4, it is characterised in that: the inlet channel of described check valve relative to The other end arranging breather check valve valve block one end is upstream end, is provided with shape UNICOM perpendicular with inlet channel at this inlet end Enter input channel, enter the entrance jointing being provided with straight-tube shape at input channel, if the outer peripheral face of jointing is provided with Dry the mounting groove installed for sealing ring.
7. according to the vacuum pump of electric automobile described in claim 1 or 2 or 3, it is characterised in that: the construction opening position of described pump case It is provided with short slot in the edge of cylinder sleeve installation place, between cylinder sleeve and construction opening, is provided with pad.
Vacuum pump of electric automobile the most according to claim 4, it is characterised in that: the construction opening of described pump case is positioned at cylinder sleeve The edge of installation place is provided with short slot, is provided with pad between cylinder sleeve and construction opening.
CN201610795317.8A 2016-08-31 2016-08-31 Vacuum pump of electric automobile Active CN106224201B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610795317.8A CN106224201B (en) 2016-08-31 2016-08-31 Vacuum pump of electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610795317.8A CN106224201B (en) 2016-08-31 2016-08-31 Vacuum pump of electric automobile

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CN106224201A true CN106224201A (en) 2016-12-14
CN106224201B CN106224201B (en) 2019-01-08

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN109268236A (en) * 2018-12-05 2019-01-25 深圳市龙壹科技有限公司 Micro air pump
CN114517776A (en) * 2022-01-29 2022-05-20 贵州华烽汽车零部件有限公司 Portable mini-air compression pump for medical oxygen generator

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CN105804967A (en) * 2016-05-10 2016-07-27 浙江亚太机电股份有限公司 Combined piston type electronic vacuum pump for automobile
CN206175159U (en) * 2016-08-31 2017-05-17 温州品达机车部件有限公司 Electric automatic vacuum pump

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Publication number Priority date Publication date Assignee Title
JP2001280234A (en) * 2000-03-30 2001-10-10 Shibaura Mechatronics Corp Opposed type reciprocating pump
US20050069431A1 (en) * 2003-01-08 2005-03-31 Leu Shawn A. Piston mounting and balancing system
CN2856476Y (en) * 2006-02-20 2007-01-10 杨春和 Noiseless high efficiency gas compressor
US20090016913A1 (en) * 2007-07-11 2009-01-15 Gast Manufacturing, Inc., A Division Of Idex Corporation Balanced dual rocking piston pumps
CN201461306U (en) * 2009-08-03 2010-05-12 李天顺 Oil-gas recovery vacuum pump
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109268236A (en) * 2018-12-05 2019-01-25 深圳市龙壹科技有限公司 Micro air pump
CN109268236B (en) * 2018-12-05 2023-09-08 深圳市龙壹科技有限公司 Miniature air pump
CN114517776A (en) * 2022-01-29 2022-05-20 贵州华烽汽车零部件有限公司 Portable mini-air compression pump for medical oxygen generator

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Address after: Tangxia town Ruian city Wenzhou city Zhejiang province 325000 Lin Innovation Road No. 129

Patentee after: ZHEJIANG PNIAD MOTOR VEHICLE PARTS Co.,Ltd.

Address before: Tangxia town Ruian city Wenzhou city Zhejiang province 325000 Lin Innovation Road No. 129

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