CN106481556A - A kind of vavuum pump - Google Patents
A kind of vavuum pump Download PDFInfo
- Publication number
- CN106481556A CN106481556A CN201611149458.9A CN201611149458A CN106481556A CN 106481556 A CN106481556 A CN 106481556A CN 201611149458 A CN201611149458 A CN 201611149458A CN 106481556 A CN106481556 A CN 106481556A
- Authority
- CN
- China
- Prior art keywords
- pump
- vavuum pump
- moment
- end cap
- electric machine
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
Abstract
The invention discloses a kind of vavuum pump, which includes：Electric machine casing, pump seat, end cap, electric machine assembly and pump group part, wherein, the electric machine assembly is fixed to the pump seat by the electric machine casing, the pump seat limits pump accommodating chamber, the pump group part is arranged in the pump accommodating chamber, the motor shaft of the electric machine assembly is stretched in the pump accommodating chamber, and to engage the pump group part, the end cap closes the pump accommodating chamber.The vavuum pump of the present invention can simplify the assembling process of vavuum pump, while improving the outward appearance globality of vavuum pump, and also be particularly conducive to the volume for eliminating noise and reduction vavuum pump.
Description
Technical field
The present invention relates to fluid machinery technical field, and in particular to a kind of vavuum pump.
Background technology
Vavuum pump of the prior art, such as vane-type vacuum pump, generally include three parts, i.e. motor from profile
Housing, pump case and installing plate, wherein, electric machine assembly and pump group part are fixedly installed to installation in the both sides of installing plate respectively
Plate, electric machine casing and pump case are covered on outside the outside and pump group part of electric machine assembly respectively, and are equally fixed to installing plate, example
Such as, the vavuum pump disclosed in patent document CN104131979A.The vavuum pump of this version, exist assembling process trouble,
Outward appearance globality poor and noise larger the shortcomings of.
In addition, for vane-type vacuum pump, the junction of electric machine assembly and pump group part, i.e. in motor shaft and pump
The driving member of transmitting torque between rotor, typically using the face of cylinder or elliptic cylinder as moment of torsion transfer surface, driving member is turned with pump
Contact surface between son is less, and contact stress is larger, is easily caused the damage of driving member and/or pump rotor, thus affects vacuum
The life-span of pump.
Content of the invention
Present invention is primarily targeted at providing a kind of vavuum pump, which can solve the problem that at least one in drawbacks described above.
For reaching above-mentioned purpose, the present invention takes technical scheme below：
A kind of vavuum pump, which includes：Electric machine casing, pump seat, end cap, electric machine assembly and pump group part, wherein, the motor casing
The electric machine assembly is fixed to the pump seat by body, and the pump seat limits pump accommodating chamber, and the pump group part is arranged on the pump
In accommodating chamber, the motor shaft of the electric machine assembly is stretched in the pump accommodating chamber, to engage the pump group part, the end cap closing
The pump accommodating chamber.
Preferably, the end cap is plate-like members.
Preferably, the pump seat includes integral part of cylindrical portion, and the inner side of the cylindrical portion limits pump receiving
Chamber.
Preferably, the madial wall of the cylindrical portion is provided with the multiple convex tendons for protruding radially inward, and at least one pair of is adjacent
The distance between convex tendon is less than the radial projection size of the convex tendon.
Preferably, the madial wall of the cylindrical portion is provided with lug, and the lug is provided with screwed hole, sets on the end cap
Have connecting hole, threaded fastener through after the connecting hole with the engagement threaded, the end cap is fixed to the pump seat；
Or, the madial wall at the opening of the cylindrical portion or lateral wall are provided with the first screw thread, and the end cap is provided with
Second screw thread, cooperation of the end cap by means of first screw thread with second screw thread are fixed to the pump seat.
Preferably, the pump group part includes pump rotor, and the motor shaft engages the pump rotor, the biography by driving member
Moving part has moment of torsion transfer surface, and at least a portion of the moment of torsion transfer surface is plane.
Preferably, the moment of torsion transfer surface also includes curved surface, seamlessly transits between the curved surface and the plane.
Preferably, the driving member includes cylindrical-shaped main body and the torque transfer part that extends from the cylindrical-shaped main body,
The moment of torsion transfer surface is located in the torque transfer part.
Preferably, the torque transfer part is the first projection axially extended from the end face of the cylindrical-shaped main body, or
Person, is the second projection radially extended from the lateral surface of the cylindrical-shaped main body.
Preferably, described first raised include medial surface, lateral surface and peripheral side, the medial surface of first projection and
Lateral surface is the extension of the medial surface of the cylindrical-shaped main body and lateral surface, and the peripheral side of first projection is connection
The medial surface of first projection and the transition face of lateral surface, the peripheral side are constituted and state moment of torsion transfer surface.
Preferably, the mid portion of the peripheral side is plane, near medial surface and the lateral surface of first projection
Part be arc surface.
Preferably, described second is raised including first side, second side and free end side, the first side and institute
The footpath for stating second side is proximally all connected with the lateral surface of the cylindrical-shaped main body, the free end side in smoothing junction described the
One side, the radially distant end of second side, a part or second side of the first side and the free end side
Face constitutes the moment of torsion transfer surface with a part for the free end side.
Preferably, the first side and the second side are parallel plane, and the free end side is arc surface.
The vavuum pump of the present invention can simplify the assembling process of vavuum pump, while the outward appearance globality of vavuum pump is improved, and
And also it is particularly conducive to the volume for eliminating noise and reduction vavuum pump.
The preferred structure of the vavuum pump of the present invention is by least a portion of the moment of torsion transfer surface of driving member to be set to put down
Face, can significantly increase the contact surface between driving member and pump rotor, reduce contact stress, extend the service life of vavuum pump.
Description of the drawings
Fig. 1 is the contour structures schematic diagram of the vavuum pump according to the preferred embodiment of the present invention；
Fig. 2 is the decomposing schematic representation of the vavuum pump according to the preferred embodiment of the present invention；
Fig. 3 is the cross-sectional schematic of the vavuum pump according to the preferred embodiment of the present invention；
Fig. 4 is the contour structures schematic diagram of the pump seat in the present invention；
Fig. 5 is the contour structures schematic diagram of another angle of the pump seat of Fig. 4；
Fig. 6 is the structural representation of the pump group part in the present invention；
Fig. 7 is the schematic diagram of the driving member in the present invention and a kind of embodiment of the fit structure of pump rotor；
Fig. 8 is the contour structures schematic diagram of the driving member in Fig. 7；
Fig. 9 is the schematic diagram of the driving member in the present invention and the another embodiment of the fit structure of pump rotor；
Figure 10 is the schematic top plan view of the driving member in Fig. 9.
Specific embodiment
The preferred embodiment of the vavuum pump according to the present invention is described hereinafter with reference to accompanying drawing.
Referring first to Fig. 1-3, the structure of the vavuum pump of the preferred embodiment of the present invention is that schematically illustrated.By scheming
It can be seen that, the vavuum pump of the present invention is generally comprised：Electric machine casing 12, pump seat 8, end cap 1, electric machine assembly 11 and pump group part, wherein,
The electric machine assembly 11 is fixed to the pump seat 8 by the electric machine casing 12, and the pump seat 8 limits pump accommodating chamber, the pump
Component is arranged in the pump accommodating chamber, and the motor shaft of the electric machine assembly 11 is stretched in the pump accommodating chamber, described to engage
Pump group part, the end cap 1 close the pump accommodating chamber.
The contour structures of the vavuum pump of the present invention only include two large divisions on the whole, i.e. electric machine casing and pump seat, a side
Face can simplify the assembling process of vavuum pump, on the other hand also improve the outward appearance globality of vavuum pump, and also particularly advantageous
In the volume for reducing vavuum pump.
Especially, by suitable shape or the thickness of selection end cap 1, it is easy to change the volume of pump accommodating chamber and intrinsic frequency
Rate, so as to advantageously reduce vibration and noise.By contrast, pump is collectively forming using installing plate and pump case in prior art
The scheme of accommodating chamber, then it is difficult to change the volume of pump accommodating chamber, its intrinsic frequency is also difficult to change, thus must adopt special
Sound-silencing measures, for example, arrange muffler in pump case, this increases not only cost, while cause the volume of vavuum pump to increase again
Greatly.
Preferably, as depicted in figs. 1 and 2, the end cap 1 can be plate-like members.This causes the manufacture of end cap 1 very
Simply, install and be also relatively easy to.It should be noted that heretofore described plate-like members, refer to that end cap is on the whole
It is now tabular, and does not mean which is necessary for the flat board of both sides perfect parallelism, although which can be the flat of both sides perfect parallelism
Plate.For example, end cap 1 can be thinning or thickening in adjacent edges local, e.g., can include the structure such as inner convex platform or outward flange, with
Fixed installation is convenient for, and is easy to change the volume of pump accommodating chamber.
Preferably, as shown in Fig. 2, Fig. 3 and Fig. 6, the pump group part includes the first cover plate 2, the pump housing 5, the second cover plate 6, pump
Rotor 3 and blade 4, first cover plate 2 and second cover plate 6 are located at the both sides of the pump housing 5 respectively, to limit jointly
Pump chamber, the pump rotor 3 are located in the pump chamber, and the blade 4 is slidably placed in the blade groove 301 of the pump rotor 3.
For example, the shape of cross section of pump rotor 3 is preferably circular, and the shape of cross section of the madial wall of the pump housing 5 is also preferably
Circle, pump rotor 3 are prejudicially arranged with the pump housing 5.It (can also be any other suitable number to be for example provided with 5 in pump rotor 3
Mesh) blade groove 301, these blade grooves 301 are obliquely installed with respect to the radial direction of pump rotor 3 at the same angle, and
It is evenly arranged in the range of 360 degree.5 blades 4 are placed in blade groove 301 correspondingly.When pump rotor 3 rotates, each leaf
Piece 4 is close to the madial wall of the pump housing 5 under the influence of centrifugal force, so as to pump chamber to be divided into the suction and discharge list of multiple volumes change
Unit.
Second cover plate 6 is provided with air inlet duct 601, such as the circular arc elongated slot shown in Fig. 6.First cover plate 2 is provided with out
Air drain 201, such as the circular arc elongated slot shown in Fig. 6.When at the corresponding suction and discharge unit rotational to air inlet duct 601, which enters
One step is rotated and causes the volume of the suction and discharge unit to become big, so as to suck gas in the suction and discharge unit；When the suction and discharge list
Unit is fully disconnected with air inlet duct 601 when connecting, and the volume of the suction and discharge unit reaches maximum；Hereafter, in the further of pump rotor 3
In rotary course, the volume of the suction and discharge unit starts to diminish, and gas therein is compressed, until the suction and discharge unit
When connecting with outgassing groove 201, gas is expelled in pump accommodating chamber, for example through outgassing groove 201, is expelled to the first cover plate 2 in Fig. 3
In the space of top, discharged outside vavuum pump then.
Preferably, as shown in figure 4, the pump seat 8 includes integral part of cylindrical portion 801, the inner side of the cylindrical portion 801
Limit the pump accommodating chamber.The free end of cylindrical portion 801 is closed by end cap 1 for the opening of pump accommodating chamber, the opening.
As shown in figure 4, the inner side of cylindrical portion 801 forms pump accommodating chamber, the bottom of pump accommodating chamber is provided with air inlet 802, pump
After component is in pump accommodating chamber, air inlet duct 601 is aligned with the air inlet 802.On the other hand, the air inlet 802
The other end is communicated with air inlet pipe 9 (being shown in Fig. 1, Fig. 2 and Fig. 5), so as to sucking ambient atmos in pump group part.Air inlet pipe 9
It is preferred that in the way of interference fit or Screw assembly on pump seat 8.
The bottom (for example near edge) of pump accommodating chamber is additionally provided with gas outlet (not shown), when pump group part is held installed in pump
When receiving in chamber, pump group part does not block the gas outlet, so as to the space of 2 top of the first cover plate is through pump group part edge and cylindrical portion
Gap between 801 madial walls is connected with the gas outlet.On the other hand, the other end of the gas outlet (is shown with escape pipe 10
In Fig. 1 and Fig. 5) communicate, so as to the gas in pump group part can be discharged outside vavuum pump.Escape pipe 10 preferably with interference fit or
The mode of Screw assembly is on pump seat 8.
Preferably, as shown in figure 4, the madial wall of the cylindrical portion 801 is provided with the multiple convex tendons for protruding radially inward
803, the distance between at least one pair of adjacent convex tendon 803 is less than the radial projection size of the convex tendon 803.Due to adjacent convex
Narrow slot is formed between muscle 803, on the one hand, when sound wave is through these narrow slot, is susceptible to reflect and is interfered, reduces acoustic energy,
So as to form resistant noise-reducing device, meanwhile, can also reduce flow velocity and the pressure of air-flow, realize preferable sound-deadening and noise-reducing effect；Separately
On the one hand, sound-absorbing porous material can also be set in these narrow slot, so as to resistive silencing means is constituted, to reduce making an uproar for vavuum pump
Sound.
Preferably, 3 convex tendon groups can be for example set on the madial wall of cylindrical portion 801, each convex tendon group all includes multiple convex
Muscle 803.Obviously, convex tendon more than 803, the bigger area of easier covering, occur the probability for reflecting and interfering bigger so as to sound wave,
Or more sound-absorbing porous materials can be accommodated, thus erasure effect is also better.However, the setting of convex tendon 803 also needs to examine
Consider the installation of pump group part, be defined by the installation for not interfering pump group part.
Preferably, with different radial projection sizes, the radial projection size of for example each convex tendon can for adjacent convex tendon 803
Alternately to change, e.g., change according to high and low, high and low rule, so as to strengthen the effect of sound wave reflection and interference, further
Reduce the noise of vavuum pump.
Preferably, as shown in figure 4, on the axial direction of vavuum pump, one end of the convex tendon 803 abuts the pump and accommodates
The bottom surface in chamber, the other end abut the end cap 1.That is, the axial dimension of each convex tendon 803 reaches maximum, such that it is able to accommodate more
Many sound-absorbing porous materials, ensure erasure effect further.
Preferably, still as shown in figure 4, the madial wall of the cylindrical portion 801 is provided with lug 804, set on the lug 804
Have screwed hole, the end cap 1 is provided with connecting hole, threaded fastener (screw etc.) through after the connecting hole with the spiral shell
Pit is engaged, and just the end cap 1 can be fixed to the pump seat 8.
Alternatively, threaded fastener can also be not provided between end cap 1 and pump seat 8, but complete by the screw thread of itself
Fastening.For example, it is possible to the first screw thread is provided with the madial wall at the opening of the cylindrical portion 801 or lateral wall, at the end
Second screw thread is accordingly provided with lid 1, the end cap 1 is so as to can be by means of the cooperation of first screw thread and second screw thread
It is fixed to the pump seat 8.
When vavuum pump is using pump seat provided by the present invention, the assembling process of vavuum pump can be simplified, while improving true
The outward appearance globality of empty pump, and also it is particularly conducive to the volume for eliminating noise and reduction vavuum pump.
In addition, as background section is previously mentioned, in prior art, transmitting torque between motor shaft and pump rotor
Driving member, typically using the face of cylinder or elliptic cylinder as moment of torsion transfer surface, this structure causes between driving member and pump rotor
Contact surface less, contact stress is larger, is easily caused the damage (damaging by pressure for such as contact surface) of driving member and/or pump rotor,
Thus the life-span of vavuum pump is affected.
For this purpose, the present invention makes improvement to the structure of driving member.
As it was previously stated, in the vavuum pump of the present invention, the pump group part includes pump rotor 3, the motor shaft passes through driving member 7
The pump rotor 3 is engaged, with moment of torsion transfer surface, at least a portion of the moment of torsion transfer surface is plane to the driving member 7.Hold
Intelligible is that the mating surface coordinated with the moment of torsion transfer surface on pump rotor 3 is similarly arranged at least a portion for plane.
It is plane by least a portion for arranging moment of torsion transfer surface, compared to the face of cylinder of the prior art or cylindroid
Face, can significantly increase the contact surface between driving member and pump rotor, reduce contact stress, extend the service life of vavuum pump.
Preferably, the moment of torsion transfer surface also includes curved surface, seamlessly transits between the curved surface and the plane.Easily manage
Solution, the mating surface coordinated with the moment of torsion transfer surface on pump rotor 3 are similarly arranged to the curved surface peace for including to seamlessly transit
Face.By combining for the curved surface that seamlessly transits and plane, the stress concentration situation of the edge of planar section can be eliminated, so as to
Be further ensured that pump rotor and driving member without damage.
Preferably, as is seen in figs 7-10, the driving member 7 includes cylindrical-shaped main body 701 and from the cylindrical-shaped main body 701
The torque transfer part 702 or 703 that extends, the moment of torsion transfer surface are located in the torque transfer part 702 or 703.Accordingly,
As shown in figures 7 and 9, pump rotor 3 is provided with the moment of torsion transmission recess with the torque transfer part 702 or 703 form fit, pump
The mating surface coordinated with the moment of torsion transfer surface on rotor 3 is located in the moment of torsion transmission recess.
When driving member 7 is fixed in torsion proof mode with respect to motor shaft, between driving member 7 and pump rotor 3
Coordinate and just the rotary motion of motor shaft can be delivered on pump rotor 3, so as to drive pump group part operation.7 phase of driving member
Fixed form for motor shaft is prior art, and the present invention will not be described here.
As the moment of torsion transfer surface between driving member 7 and pump rotor 3 adopts above-mentioned optimal design-aside, in the present invention, pump rotor 3
Can be made using graphite material, so that its high temperature resistant and self-lubricating property is made full use of, lead without worrying that contact stress is excessive
Cause pump rotor failure.Additionally, blade 4 can also be made using graphite material, also with its lubrication and anti-wear performance, extend true
The service life of empty pump.
Preferably, as Figure 7-8, the torque transfer part 702 be from the end face of the cylindrical-shaped main body 701 vertically
The first projection 702 for extending, for example, by 120 degree of equally distributed three first projections 702.The quantity of the first projection 702 also may be used
To be one or other numbers.Obviously, the quantity of the first projection 702 is more, and moment of torsion transfer surface thereon is also more, and moment of torsion is transmitted
The gross area in face is also bigger.However, the quantity of the first projection 702 is many, on pump rotor 3, corresponding moment of torsion transmits the quantity of recess
Many, excessive moment of torsion transmission recess will weaken the intensity of pump rotor 3, thus can affect the use longevity of vavuum pump again on the other hand
Life.
Preferably, as shown in figure 8, first projection 702 includes medial surface 7021, lateral surface 7022 and peripheral side
7023, the medial surface 7021 of first projection 702 and lateral surface 7022 are medial surface and the outside of the cylindrical-shaped main body 701
The extension in face, that is, the two is respectively a part for concentric circles cylinder, the peripheral side 7023 of first projection 702
For connecting the medial surface 7021 of first projection 702 and the transition face of lateral surface 7022, the peripheral side 7023 is constituted and is stated
Moment of torsion transfer surface.Obviously, first raised 702 has two peripheral side 7023, and the two peripheral side 7023 are being rotated forward respectively
With transmitting torque during reversion.
That is, each first projection 702 is with symmetrical structure, its cross section is a part for anchor ring.Easily
It is contemplated that the shape of moment of torsion transmission recess in pump rotor 3 for deep-slotted chip breaker, the shape phase of its cross section and the first projection 702
Coupling, to accommodate the first projection 702.
Preferably, the mid portion of the peripheral side 7023 is plane, near the medial surface of first projection 702
7021 and lateral surface 7022 part be arc surface, seamlessly transit between plane and arc surface.
Alternatively, as shown in figs. 9-10, the torque transfer part 703 is the lateral surface edge from the cylindrical-shaped main body 701
The second projection 703 for radially extending, for example, along symmetrically arranged two the second projections 703 of 180 degree.The quantity of the second projection 703
Can also be one or other numbers.Obviously, the quantity of the second projection 703 is more, and moment of torsion transfer surface thereon is also more, moment of torsion
The gross area of transfer surface is also bigger.However, the quantity of the second projection 703 is many, on pump rotor 3, corresponding moment of torsion transmits the number of recess
Amount is also many, and excessive moment of torsion transmission recess will weaken the intensity of pump rotor 3, thus can affect making for vavuum pump on the other hand again
Use the life-span.
Preferably, as shown in Figure 10, second projection 703 includes first side 7031, second side 7032 and freedom
End side surface 7033, the footpath of the first side 7031 and the second side 7032 are proximally all connected with the cylindrical-shaped main body
701 lateral surface, the free end side 7033 first side 7031 in smoothing junction, second side 7032 radial direction remote
End, the first side 7031 and a part for the free end side 7033 or the second side 7032 with described from
The moment of torsion transfer surface is made up of a part for end side surface 7033, their transmitting torques when rotating and reverse respectively.
Preferably, as shown in Figure 10, the first side 7031 and the second side 7032 are parallel plane, described from
It is arc surface (the preferably face of cylinder) by end side surface 7033, seamlessly transits between plane and arc surface.
When in vavuum pump using driving member provided by the present invention, even if pump rotor is using soft material systems such as graphite
Become, in vavuum pump after prolonged operating, driving member is also not easy will be bad for the corresponding contact face pressure of pump rotor, so as to protecting
The service life of card pump rotor.Equally, if driving member is made using soft material, the moment of torsion transfer surface of driving member is also not easy
It is subject to crushing, so as to the service life of driving member can be ensured.
The vavuum pump of the present invention is especially suitable for use as automobile brake power-assisted electric vacuum pump.
Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each preferred version can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is only illustrative, and not restrictive, without departing from the basic of the present invention
In the case of principle, the modification of the various obvious or equivalent that those skilled in the art can be made for above-mentioned details is replaced
Change, be all included in scope of the presently claimed invention.
Claims (10)
1. a kind of vavuum pump, it is characterised in that include：Electric machine casing, pump seat, end cap, electric machine assembly and pump group part, wherein, institute
State electric machine casing and the electric machine assembly is fixed to the pump seat, the pump seat limits pump accommodating chamber, the pump group part is arranged
In the pump accommodating chamber, the motor shaft of the electric machine assembly is stretched in the pump accommodating chamber, to engage the pump group part, described
End cap closes the pump accommodating chamber.
2. vavuum pump according to claim 1, it is characterised in that the end cap is plate-like members.
3. vavuum pump according to claim 1, it is characterised in that the pump seat includes integral part of cylindrical portion, described
The inner side of cylindrical portion limits the pump accommodating chamber.
4. vavuum pump according to claim 3, it is characterised in that the madial wall of the cylindrical portion is provided with radially-inwardly convex
The multiple convex tendons that stretches, the distance between at least one pair of adjacent convex tendon is less than the radial projection size of the convex tendon.
5. vavuum pump according to claim 3, it is characterised in that the madial wall of the cylindrical portion is provided with lug, described
Lug is provided with screwed hole, and the end cap is provided with connecting hole, threaded fastener through after the connecting hole with the screwed hole
Engagement, the end cap is fixed to the pump seat；
Or, the madial wall at the opening of the cylindrical portion or lateral wall are provided with the first screw thread, and the end cap is provided with second
Screw thread, cooperation of the end cap by means of first screw thread with second screw thread are fixed to the pump seat.
6. the vavuum pump according to one of claim 1-5, it is characterised in that the pump group part includes pump rotor, the electricity
Arbor engages the pump rotor by driving member, and the driving member has a moment of torsion transfer surface, and at least the one of the moment of torsion transfer surface
Part is plane.
7. vavuum pump according to claim 6, it is characterised in that the moment of torsion transfer surface also includes curved surface, the curved surface
Seamlessly transit between the plane.
8. vavuum pump according to claim 6, it is characterised in that the driving member includes cylindrical-shaped main body and from the circle
The torque transfer part that tubular body is extended, the moment of torsion transfer surface are located in the torque transfer part.
9. vavuum pump according to claim 8, it is characterised in that the torque transfer part be from the cylindrical-shaped main body
The first projection that end face is axially extended, or, it is the second projection radially extended from the lateral surface of the cylindrical-shaped main body.
10. vavuum pump according to claim 9, it is characterised in that
Described first is raised including medial surface, lateral surface and peripheral side, and the medial surface of first projection and lateral surface are institute
The medial surface of cylindrical-shaped main body and the extension of lateral surface is stated, the peripheral side of first projection is convex for connecting described first
The medial surface for rising and the transition face of lateral surface, the peripheral side are constituted and state moment of torsion transfer surface；
Preferably, the mid portion of the peripheral side is plane, near the medial surface of first projection and the portion of lateral surface
It is divided into arc surface；
Or, described second is raised including first side, second side and free end side, the first side and described second
The footpath of side is proximally all connected with the lateral surface of the cylindrical-shaped main body, the free end side first side in smoothing junction
Face, the radially distant end of second side, a part for the first side and the free end side or the second side with
A part for the free end side constitutes the moment of torsion transfer surface；
Preferably, the first side and the second side are parallel plane, and the free end side is arc surface.
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|---|---|---|---|
| CN201611149458.9A CN106481556A (en) | 2016-12-07 | 2016-12-07 | A kind of vavuum pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611149458.9A CN106481556A (en) | 2016-12-07 | 2016-12-07 | A kind of vavuum pump |
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| CN106481556A true CN106481556A (en) | 2017-03-08 |
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| CN201611149458.9A Pending CN106481556A (en) | 2016-12-07 | 2016-12-07 | A kind of vavuum pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799753A (en) * | 2020-06-15 | 2021-12-17 | 株式会社韩中Ncs | Vacuum pump with reservoir integrated therewith |
| CN114439750A (en) * | 2020-11-02 | 2022-05-06 | 上海海拉电子有限公司 | A amortization lid, electronic vacuum pump and vehicle for electronic vacuum pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2311632Y (en) * | 1997-10-27 | 1999-03-24 | 西安东方机械厂 | Silent rotary refrigerator compressor |
| CN201723506U (en) * | 2010-06-13 | 2011-01-26 | 南通贝特环保科技有限公司 | Silencer for low or medium pressure centrifugal fan |
| CN104696221A (en) * | 2013-12-06 | 2015-06-10 | 绍哈股份公司 | Electric vacuum pump for vehicle with control function |
| CN104863846A (en) * | 2014-02-25 | 2015-08-26 | Lg伊诺特有限公司 | Electric pump |
| CN204755314U (en) * | 2015-06-11 | 2015-11-11 | 温岭市麒元汽配有限公司 | Vacuum pump rotor joint structure |
| CN105864034A (en) * | 2016-06-06 | 2016-08-17 | 陈继业 | Single-sliding-vane rotary displacement pump |
| WO2016167409A1 (en) * | 2015-04-17 | 2016-10-20 | 한온시스템 주식회사 | Electric compressor |
| CN206409383U (en) * | 2016-12-07 | 2017-08-15 | 嘉兴东唐汽车科技有限公司 | A kind of vavuum pump |
-
2016
- 2016-12-07 CN CN201611149458.9A patent/CN106481556A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2311632Y (en) * | 1997-10-27 | 1999-03-24 | 西安东方机械厂 | Silent rotary refrigerator compressor |
| CN201723506U (en) * | 2010-06-13 | 2011-01-26 | 南通贝特环保科技有限公司 | Silencer for low or medium pressure centrifugal fan |
| CN104696221A (en) * | 2013-12-06 | 2015-06-10 | 绍哈股份公司 | Electric vacuum pump for vehicle with control function |
| CN104863846A (en) * | 2014-02-25 | 2015-08-26 | Lg伊诺特有限公司 | Electric pump |
| WO2016167409A1 (en) * | 2015-04-17 | 2016-10-20 | 한온시스템 주식회사 | Electric compressor |
| CN204755314U (en) * | 2015-06-11 | 2015-11-11 | 温岭市麒元汽配有限公司 | Vacuum pump rotor joint structure |
| CN105864034A (en) * | 2016-06-06 | 2016-08-17 | 陈继业 | Single-sliding-vane rotary displacement pump |
| CN206409383U (en) * | 2016-12-07 | 2017-08-15 | 嘉兴东唐汽车科技有限公司 | A kind of vavuum pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799753A (en) * | 2020-06-15 | 2021-12-17 | 株式会社韩中Ncs | Vacuum pump with reservoir integrated therewith |
| CN114439750A (en) * | 2020-11-02 | 2022-05-06 | 上海海拉电子有限公司 | A amortization lid, electronic vacuum pump and vehicle for electronic vacuum pump |
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Application publication date: 20170308 |