CN109969259A - Electric oil pump assembly and vehicle with it - Google Patents

Electric oil pump assembly and vehicle with it Download PDF

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Publication number
CN109969259A
CN109969259A CN201711465547.9A CN201711465547A CN109969259A CN 109969259 A CN109969259 A CN 109969259A CN 201711465547 A CN201711465547 A CN 201711465547A CN 109969259 A CN109969259 A CN 109969259A
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CN
China
Prior art keywords
oil
pump
oil pump
component
shaft
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Granted
Application number
CN201711465547.9A
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Chinese (zh)
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CN109969259B (en
Inventor
杨胜麟
王涛
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201711465547.9A priority Critical patent/CN109969259B/en
Publication of CN109969259A publication Critical patent/CN109969259A/en
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Publication of CN109969259B publication Critical patent/CN109969259B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R17/00—Arrangements or adaptations of lubricating systems or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/062—Details, component parts
    • B62D5/064—Pump driven independently from vehicle engine, e.g. electric driven pump

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

The invention discloses a kind of electric oil pump assembly and with its vehicle, the electric oil pump assembly includes: total stowage；Electric machine assembly, the electric machine assembly are located in total stowage, and the electric machine assembly includes end cap and drive shaft, and the end cap supports the drive shaft, has support holes on the end cap；Oil pump component, the oil pump component is located in total stowage and including pump oil mechanism, the pump oil mechanism includes connected shaft and pump oil portion, and the shaft is rotatably arranged in the support holes, and the end cap is cooperated by the axial plane sliding friction of the support holes and the shaft.Electric oil pump assembly according to the present invention, compact structure, compact, light weight and cost is low.

Description

Electric oil pump assembly and vehicle with it
Technical field
The present invention relates to vehicle arrangement fields, more particularly, to a kind of electric oil pump assembly and with its vehicle.
Background technique
Electric oil pump is widely used in the steering system and lubricating system of vehicle, in the related technology, the oil of electric oil pump It is split type for pumping with motor, and connection relationship is only the power coupling connection of oil pump shaft and motor shaft, so that electric oil pump Volume is larger, and the installation space of occupancy is big.In addition, the operating noise of motor and the operating noise of oil pump are larger, the relevant technologies In carry out insulating noise often through various damping elements are arranged, the construction of damping element is complicated, occupy biggish installation space, and High production cost, assembly technology is complicated, and there are rooms for improvement.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.Therefore, the present invention intends to propose one Kind of electric oil pump assembly, the electric oil pump assembly it is compact-sized.
The present invention also proposes a kind of vehicle with above-mentioned electric oil pump assembly.
The electric oil pump assembly of embodiment according to a first aspect of the present invention, comprising: total stowage；Electric machine assembly, the motor Component is located in total stowage, and the electric machine assembly includes end cap and drive shaft, and the end cap supports the drive shaft, described There are support holes on end cap；Oil pump component, the oil pump component are located in total stowage and including pump oil mechanism, the pump oil Mechanism includes connected shaft and pump oil portion, and the shaft is rotatably arranged in the support holes, and the end cap passes through institute The axial plane sliding friction for stating support holes and the shaft cooperates.
Electric oil pump assembly according to the present invention, compact structure, compact, light weight and cost is low.
In some embodiments, the end face sliding friction in the end cap and the pump oil portion cooperates.
In some embodiments, the end cap is the metal material materials and parts that hardness is less than the pump oil portion.
In some embodiments, the pump oil portion is steel part, and the end cap is aluminium sheet or copper sheet.
In some embodiments, have on the side end face towards the pump oil portion of the end cap and connect with the support holes Logical lubrication groove and/or the turbulent slot being oppositely arranged is set with the oil level that enters in the pump oil portion.
In some embodiments, it is equipped with supporting between the end cap and the pump oil portion, has on the supporting and supplies The end face sliding friction in the via hole that the shaft passes through, the supporting and the pump oil portion cooperates.
In some embodiments, pump cover is held equipped with double in the side far from the end cap in the pump oil portion, and described pair is held pump Lid on the one hand with the shaft reach the pump oil portion far from the rotor side axial plane sliding friction cooperation, it is another The end face sliding friction far from the rotor side in aspect and the pump oil portion cooperates.
In some embodiments, the side far from the end cap in the pump oil portion, which is equipped with, singly holds pump cover, described singly to hold pump Be equipped with supporting between lid and the pump oil portion, it is described singly hold pump cover and the shaft reach the pump oil portion far from institute The axial plane sliding friction cooperation of rotor side is stated, the supporting and the end face far from the rotor side in the pump oil portion are sliding Dynamic friction cooperation.
In some embodiments, the side far from the end cap in the pump oil portion be equipped with it is non-hold pump cover, it is described non-to hold pump Be equipped with bearing block between lid and the pump oil portion, the bearing block on the one hand with the shaft to reach the pump oil portion remote Axial plane sliding friction cooperation from the rotor side, the on the other hand end face with the pump oil portion far from the rotor side Sliding friction cooperation.
The vehicle of embodiment according to a second aspect of the present invention, including electric oil pump assembly according to a first aspect of the present invention.
Vehicle according to the invention, compact structure, compact, light weight and cost is low.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is the explosive view of according to embodiments of the present invention one oil pump component；
Fig. 2 is the axial side perspective view of oil pump component shown in Fig. 1；
Fig. 3 is the axial other side perspective view of oil pump component shown in Fig. 1；
Fig. 4 is a cross-sectional view of oil pump component shown in Fig. 1；
Fig. 5 is another cross-sectional view of oil pump component shown in Fig. 1；
Fig. 6 is the cross-sectional view of according to embodiments of the present invention one electric oil pump assembly；
Fig. 7 is the portion the F enlarged drawing in Fig. 6；
Fig. 8 is the explosive view of according to embodiments of the present invention two oil pump component；
Fig. 9 is the axial side perspective view of oil pump component shown in fig. 8；
Figure 10 is the axial other side perspective view of oil pump component shown in fig. 8；
Figure 11 is a cross-sectional view of oil pump component shown in fig. 8；
Figure 12 is another cross-sectional view of oil pump component shown in fig. 8；
Figure 13 is another cross-sectional view of oil pump component shown in fig. 8；
Figure 14 is the cross-sectional view of according to embodiments of the present invention two electric oil pump assembly；
Figure 15 is the explosive view of according to embodiments of the present invention three oil pump component；
Figure 16 is the axial side perspective view of oil pump component shown in Figure 15；
Figure 17 is the axial other side perspective view of oil pump component shown in Figure 15；
Figure 18 is a cross-sectional view of oil pump component shown in Figure 15；
Figure 19 is another cross-sectional view of oil pump component shown in Figure 15；
Figure 20 is another cross-sectional view of oil pump component shown in Figure 15；
Figure 21 is the cross-sectional view of according to embodiments of the present invention three electric oil pump assembly；
Figure 22 is the explosive view of according to embodiments of the present invention four oil pump component；
Figure 23 is the axial side perspective view of oil pump component shown in Figure 22；
Figure 24 is the axial other side perspective view of oil pump component shown in Figure 22；
Figure 25 is a cross-sectional view of oil pump component shown in Figure 22；
Figure 26 is another cross-sectional view of oil pump component shown in Figure 22；
Figure 27 is another cross-sectional view of oil pump component shown in Figure 22；
Figure 28 is the cross-sectional view of according to embodiments of the present invention four electric oil pump assembly；
Figure 29 is the explosive view of according to embodiments of the present invention five oil pump component；
Figure 30 is the axial side perspective view of oil pump component shown in Figure 29；
Figure 31 is the axial other side perspective view of oil pump component shown in Figure 29；
Figure 32 is a cross-sectional view of oil pump component shown in Figure 29；
Figure 33 is another cross-sectional view of oil pump component shown in Figure 29；
Figure 34 is the cross-sectional view of according to embodiments of the present invention five electric oil pump assembly；
Figure 35 is the explosive view of according to embodiments of the present invention six oil pump component；
Figure 36 is the axial side perspective view of oil pump component shown in Figure 35；
Figure 37 is the axial other side perspective view of oil pump component shown in Figure 35；
Figure 38 is a cross-sectional view of oil pump component shown in Figure 35；
Figure 39 is another cross-sectional view of oil pump component shown in Figure 35；
Figure 40 is the cross-sectional view of according to embodiments of the present invention six electric oil pump assembly；
Figure 41 is the explosive view of according to embodiments of the present invention seven oil pump component；
Figure 42 is the axial side perspective view of oil pump component shown in Figure 41；
Figure 43 is the axial other side perspective view of oil pump component shown in Figure 41；
Figure 44 is a cross-sectional view of oil pump component shown in Figure 41；
Figure 45 is another cross-sectional view of oil pump component shown in Figure 41；
Figure 46 is the cross-sectional view of according to embodiments of the present invention seven electric oil pump assembly；
Figure 47 is the explosive view of according to embodiments of the present invention eight oil pump component；
Figure 48 is the axial side perspective view of oil pump component shown in Figure 47；
Figure 49 is the axial other side perspective view of oil pump component shown in Figure 47；
Figure 50 is the axial other side perspective view of oil pump component shown in Figure 47；
Figure 51 is a cross-sectional view of oil pump component shown in Figure 47；
Figure 52 is another cross-sectional view of oil pump component shown in Figure 47；
Figure 53 is the cross-sectional view of according to embodiments of the present invention eight electric oil pump assembly；
Figure 54 is the explosive view of according to embodiments of the present invention nine oil pump component；
Figure 55 is the axial side perspective view of oil pump component shown in Figure 54；
Figure 56 is the axial other side perspective view of oil pump component shown in Figure 54；
Figure 57 is the axial other side perspective view of oil pump component shown in Figure 54；
Figure 58 is a cross-sectional view of oil pump component shown in Figure 54；
Figure 59 is another cross-sectional view of oil pump component shown in Figure 54；
Figure 60 is the cross-sectional view of according to embodiments of the present invention nine electric oil pump assembly；
Figure 61 is the explosive view of according to embodiments of the present invention ten oil pump component；
Figure 62 is the axial side perspective view of oil pump component shown in Figure 61；
Figure 63 is the axial other side perspective view of oil pump component shown in Figure 61；
Figure 64 is the axial other side perspective view of oil pump component shown in Figure 61；
Figure 65 is a cross-sectional view of oil pump component shown in Figure 61；
Figure 66 is another cross-sectional view of oil pump component shown in Figure 61；
Figure 67 is the cross-sectional view of according to embodiments of the present invention ten electric oil pump assembly；
Figure 68 is vehicle according to an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.For letter Change disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and It is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy It is for purposes of simplicity and clarity, itself not indicate the relationship between discussed various embodiments and/or setting again.This Outside, the present invention provides various specific techniques and material example, but those of ordinary skill in the art may be aware that The applicable property of other techniques and/or the use of other materials.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.
In addition, without conflicting with each other, those skilled in the art can be by difference described in this specification The feature of embodiment or example and different embodiments or examples is combined, all fall within protection scope of the present invention it It is interior.Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: do not departing from this These embodiments can be carried out with a variety of change, modification, replacement and modification in the case where the principle and objective of invention, it is of the invention Range is defined by the claims and their equivalents.
In the following, with reference to Fig. 1-7 and combining Figure 40 and Figure 46, the oil pump group of embodiment according to a first aspect of the present invention is described Part 1 and electric oil pump assembly 1000 with it.
As shown in fig. 6, electric oil pump assembly 1000 according to an embodiment of the present invention has total oil inlet 201 and total oil outlet 202, and electric oil pump assembly 1000 includes: oil pump component 1 and electric machine assembly 2.
As shown in Fig. 1, Fig. 6 and Fig. 7, electric machine assembly 2 includes drive shaft 24, and 1 floating support of oil pump component is in electric machine assembly 2 End cap 211 on (i.e. oil pump component 1 is connected with 211 on-fixed of end cap of electric machine assembly 2, at this point, oil pump component 1 is with respect to motor The end cap 211 of component 2 can play, such as can play along the axial, radial etc. of drive shaft 24), drive shaft 24 protrudes into oil pump The inside of component 1 (here, since drive shaft 24 will also be connected with rotor 23, protrudes fully into so that simultaneously nonpowered axle 24 is whole The inside of oil pump component 1) and oil pump component 1 is driven to realize from total oil inlet 201 to the work of the pump oil of total oil outlet 202.
Electric oil pump assembly 1000 according to an embodiment of the present invention as a result, since drive shaft 24 protrudes into oil pump component 1 Portion can reduce the connection distance between electric machine assembly 2 and oil pump component 1, so that the structure of electric oil pump assembly 1000 is more Small and exquisite, compact, weight is lighter, cost is lower, more convenient vehicle-mounted carrying.
In some currently preferred embodiments of the present invention, electric oil pump assembly 1000 can also include case component, casing group For part for accommodating oil pump component 1 and electric machine assembly 2, case component includes casing 21, and oil-overflow general assembly is limited in casing 21 Cabin 200, total oil inlet 201 and total oil outlet 202 are both formed on casing 21, and electric machine assembly 2 and oil pump component 1 are each provided at general assembly In cabin 200, wherein electric machine assembly 2 include stator 22 and rotor 23,23 relative stator 22 of rotor can be rotated and with 24 phase of drive shaft Even, oil pump component 1 includes pump oil mechanism 11, the driving that pump oil mechanism 11 is driven moving axis 24 realize from total oil inlet 201 to it is total go out The pump oil of hydraulic fluid port 202 works.
Specifically, in the process of work, rotor 23 drives 24 phase of drive shaft to electric oil pump assembly 1000 referring to Fig. 6 Stator 22 is rotated, the work of 24 transfer tube oil machine structure 11 of drive shaft, during pump oil mechanism 11 works, the oil outside casing 21 can To be entered in total stowage 200 by total oil inlet 201, the oil in total stowage 200 can be discharged to machine by total oil outlet 202 Outside shell 21.
Electric oil pump assembly 1000 according to an embodiment of the present invention as a result, since oil pump component 1 and electric machine assembly 2 are complete Full setting is wrapped up in oil-overflow total stowage 200 by oil, so as to minimize 121 wall thickness of the pump housing of oil pump component 1, is made Weight saving, the occupied space reduction of oil pump component 1 are obtained, but also can reduce the transmitting work noise outward of oil pump component 1, this The seal request of oil pump component 1 can also be reduced outside, reduce the design and investment of sealing element (sealing ring as described below), into And volume, weight, cost and the noise of electric oil pump assembly 1000 are reduced, it is more favorable for it vehicle-mounted.In short, according to this The electric oil pump assembly 1000 of inventive embodiments, since oil pump component 1 and electric machine assembly 2 are integrally disposed, so as to effectively drop The operating noise of low electric oil pump assembly 1000, and make the structure of electric oil pump assembly 1000 more compact.Here it is possible to will The casing 21 of electric oil pump assembly 1000 is considered as the shell of electric machine assembly 2, at this point it is possible to be understood as oil pump component 1, stator 22, Rotor 23, drive shaft 24 are completely integrated in the shell in electric machine assembly 2.
Specifically, pump oil mechanism 11 can only include pump oil portion 112, pump oil mechanism 11 can also both include pump oil portion It 112, again include shaft 111, pump oil portion 112 is connected with shaft 111, wherein pump oil is played the role of in pump oil portion 112, turns Axle portion 111 plays the role of input torque and/or support pump oil portion 112.Wherein, pump oil mechanism 11 can be inside engaged gear Group or external gear pump group or rotary blade.Here, it should be noted that " pump oil portion 112 and shaft as described herein 111 are connected " it refers to: shaft 111 can be respectively individual components with pump oil portion 112 and assembly is connected, shaft 111 and pump Oily portion 112 can also be an integrally formed global facility.
For example, when pump oil mechanism 11 is inside engaged gear group (not shown go out), pump oil portion 112 may include outer gear ring and Internal gear, as pump oil mechanism 11 also have shaft 11, shaft 111 may include the driven shaft being connected with outer gear ring and with it is interior The connected driving shaft of gear.
For example, (referring to Fig.1) when pump oil mechanism 11 is external gear pump group, pump oil portion 112 may include driving gear 112A and driven gear 112B, if pump oil mechanism 11 also has shaft 11, shaft 111 may include and driven gear 112B The connected driven shaft 111B and driving shaft 111A being connected with driving gear 112A.
For example, when pump oil mechanism 11 is rotary blade (not shown go out), pump oil portion 112 may include wheel hub and blade, If pump oil mechanism 11 also has shaft 11, shaft 111 may include the shaft being connected with wheel hub.
In some alternative embodiments of the invention, power input unit (the i.e. pump oil portion of drive shaft 24 and oil pump component 1 112 power input part, internal gear as described above, driving gear 112A, wheel hub etc.) connection.That is, drive shaft 24 can be directly protruding into power input unit and connect with power input unit, such as drive shaft 24 and power input unit can be with keys Connection, such as flat key connection, spline connection.Thus, it is possible to drive shaft 24 is improved for the driving reliability of oil pump component 1, and Keep the adaptive centering effect of oil pump component 1 and electric machine assembly 2 more preferable.
Preferably, as shown in Fig. 1, Fig. 4 and Fig. 7, drive shaft 24 couples with power input unit spline.That is, power There is internal spline on the shaft hole inner wall of input unit, there is external splines in the peripheral wall surfaces of 24 end 2431 of drive shaft, drive shaft 24 In the axis hole that 2431 inserting of end is arrived, internal spline couples with external splines spline, so that drive shaft 24 can be with transfer tube oil machine structure 11 It steadily and reliably rotates, and the contact stress at spline fitted is small, damage not easy to fatigue, long service life.
Certainly, the invention is not limited thereto, and in other embodiments of the invention, drive shaft 24 and power input unit can be with Couple by other means, for example, can have groove on the shaft hole inner wall of power input unit, the week of 24 end 2431 of drive shaft There is protrusion on wall surface, after the axis hole of 2431 inserting of end to the power input unit of drive shaft 24 is interior, protrusion cooperates with groove, from And drive shaft 24 can drive power input unit to realize rotation.
In some alternative embodiments of the invention, there is power input shaft, driving in the power input unit of oil pump component 1 Axis 24 and power input shaft (such as the driving shaft described above being connected with internal gear, the active being connected with driving gear 112A Axis 111A, the shaft being connected with wheel hub) it connect.That is, drive shaft 24 can be directly protruding into power input shaft and with Power input shaft connection, such as drive shaft 24 can be keyed with power input shaft, such as flat key connection, spline connection.As a result, Drive shaft 24 can be improved for the driving reliability of oil pump component 1, and make the adaptive right of oil pump component 1 and electric machine assembly 2 Middle effect is more preferable.
As a result, according to described above, when pump oil mechanism 11 is inside engaged gear group (not shown go out), drive shaft 24 can be with In axis hole in inserting to driving shaft (when not having driving shaft, axis hole that drive shaft 24 can directly in inserting to internal gear It is interior) outer gear ring rotation is driven to drive internal gear to rotate, when internal gear rotates, to realize that pump oil works.
(referring to Fig.1) when pump oil mechanism 11 is external gear pump group, drive shaft 24 can be in inserting to driving shaft 111A Axis hole 1121 in (when not having driving shaft 111A, axis hole that drive shaft 24 can directly in inserting to driving gear 112A It is interior) driven gear 112B rotation is driven to drive driving gear 112A to rotate, when driving gear 112A is rotated, to realize pump oil Work.
When pump oil mechanism 11 is rotary blade (not shown go out), drive shaft 24 can be in the axis hole in inserting to shaft (when not having shaft, drive shaft 24 can be in the axis hole directly in inserting to wheel hub) is rotated, hub rotation with drive hub When band movable vane piece rotate, thus realize pump oil work.
Such as in some specific examples of the invention, as shown in Figure 1 and Figure 4, being driven for inserting on oil pump component 1 The axis hole of axis 24 is along axially through pump oil mechanism 11.Facilitate the processing and manufacture of axis hole as a result, and facilitate internal spline processing and Manufacture, moreover, during drive shaft 24 drives oil pump component 1 to work, perfect heat-dissipating, long service life.Certainly, of the invention Without being limited thereto, axis hole can also be processed as blind hole as needed, preferably to meet different actual demands.
In some embodiments of the invention, as shown in fig. 7, the outer end face edge of the end 2431 of drive shaft 24 has just It is inserted into the guide surface 2432 of the inside of oil pump component 1 in end 2431, such as can be by way of rounded corner or contra bevel Guide surface 2432 is processed, to improve the assembly efficiency of drive shaft 24 Yu oil pump component 1.
In some embodiments of the invention, as shown in Fig. 1, Fig. 6 and Fig. 7, drive shaft 24 includes multistage ladder axial plane.By This, facilitates drive shaft 24 to be positioned and installed with oil pump component 1.Such as in some embodiments of the invention, including It is sequentially connected along axial direction and shaft section accumulates the first shaft part 241, the second shaft part 242 and the third shaft part 243 being sequentially reduced, that is, It says, the first shaft part 241, the second shaft part 242, third shaft part 243 are cross-section axis, wherein the sectional area of the second shaft part 242 is small Sectional area in the first shaft part 241 and the sectional area greater than third shaft part 243, wherein the first shaft part 241 is connected with rotor 23, Third shaft part 243 is connected with pump oil mechanism 11, and 242 backstop of the second shaft part is in the axial side of pump oil mechanism 11, that is to say, that the The cross-sectional area of two shaft parts 242 is greater than the aperture of the axis hole 1121 in pump oil mechanism 11, so that pump oil mechanism 11 can not be extend into The interior axial side to be located at pump oil mechanism 11.The structure of drive shaft 24 is simple as a result, facilitates processing and installation, and structure is strong It spends, drives high reliablity.Certainly, without being limited thereto, drive shaft 24 can also be processed as the shape of other multistage ladder axial planes, example One shaft part is such as set between the first shaft part 241 and the second shaft part 242 again, or in the second shaft part 242 and third shaft part 243 Between shaft part etc. is set again.
In some embodiments of the invention, as shown in figures 1 to 6, total stowage 200 includes motor room 200A and oil pump cabin 200B (herein, oil pump cabin 200B is that isolation is located in motor room 200A, i.e. oil pump cabin 200B and motor room 200A not by Oilhole, oil duct etc. are directly connected to, i.e. motor room 200A wraps up oil pump cabin 200B), motor room 200A is connected to total oil inlet 201, Oil pump cabin 200B is connected to total oil outlet 202, and oil pump component 1 is located in the 200B of oil pump cabin, the inlet port 101 of oil pump component 1 with Motor room 200A connection, the oil discharge outlet 102 of oil pump component 1 are connected to oil pump cabin 200B.It as a result, as described below, can be effective Work noise and the vibration of oil pump component 1 are reduced, and it is not necessary that sealing ring is arranged (even if i.e., pump case component in 102 outer ring of oil discharge outlet 12 leak, and the oil liquid of leakage also enters directly into the 200B of oil pump cabin, will not get rid of in air), to reduce pump case 12 wall thickness of component, weight and cost.
Specifically, as shown in figures 1 to 6,1 floating mount of oil pump component is in the 200B of oil pump cabin, such as can pass through 17 floating mount of positioning pin described below is in the 200B of oil pump cabin, so that the rotatable parts of oil pump component 1 and motor group The rotatable parts automatic centering of part 2, to reduce vibration and noise.
Preferably, have between a side end face of the separate electric machine assembly 2 of oil pump component 1 and the inner wall of oil pump cabin 200B Pre-pressing spring 25, such as pre-pressing spring 25 can be helical spring, waveform spring, disc spring etc..As a result, as described below, When electric machine assembly 2 starts, pre-pressing spring 25 can be prevented between generating between oil pump component 1 and the inner wall of oil pump cabin 200B Gap avoids the oil liquid in motor room 200A from being directly leaked to oil pump cabin 200B from the gap and can not normally enter oil pump component 1 Inlet port 101 in problem, to improve the functional reliability of oil pump component 1.
In some embodiments of the invention, as shown in Fig. 1, Figure 40 and Figure 46, total stowage 200 includes motor room 200A ' (herein, oil pump cabin 200B ' can be directly connected to motor room 200A ' by oilhole, oil duct etc., therefore total with oil pump cabin 200B ' Stowage 200 can be considered as integrated installation cabin 200C, that is to say, that total stowage 200 is simultaneously not divided into independent motor room 200A With oil pump cabin 200B), electric machine assembly 2 is located in motor room 200A ', and oil pump component 1 is located at oil pump cabin 200B ' (2 He of electric machine assembly Oil pump component 1 is each provided in the 200C of integrated installation cabin), the inlet port 101 of oil pump component 1 be connected to oil pump cabin 200B ' (i.e. with collection At installation cabin 200C connection), by oil expulsion channel 2110, (wherein, the isolation of oil expulsion channel 2110 is located at the oil discharge outlet 102 of oil pump component 1 In the 200C of integrated installation cabin, i.e. oil expulsion channel 2110 is not connected to directly with the oil in the 200C of integrated installation cabin) connect with total oil outlet 202 It is logical.The structure of electric oil pump assembly 1000 is simple as a result, facilitates processing and installation, and can equally reduce oil pump component 1 Work noise and vibration, and without 102 outer ring of oil discharge outlet be arranged sealing ring (even if i.e., pump case component 12 leak, leakage Oil liquid also enter directly into the 200C of integrated installation cabin, will not get rid of in air), thus reduce 12 wall thickness of pump case component, Weight and cost.
Preferably, the flow passage configuration in the 200C of integrated installation cabin enters integrated installation by total oil inlet 201 at when oil liquid The stator 22 that electric machine assembly 2 is first flowed through after in the 200C of cabin flows to oil pump component 1 again.As a result, by the 200C of integrated installation cabin Runner be configured, the heat dissipation effect of electric machine assembly 2 can be improved.
In addition, other of electric oil pump assembly 1000 according to an embodiment of the present invention constitute and other deformation schemes, it can be with Referring to described below, for example, embodiments described just below one is into the electric oil pump assembly 1000 of embodiment ten, as long as with this The feature that the electric oil pump assembly 1000 of invention first aspect embodiment is not contradicted or can be replaced, can be used as this hair The deformation scheme of the electric oil pump assembly 1000 of bright first aspect embodiment, falls under the scope of the present invention, here not It repeats.
In the following, describing the oil pump component 1 of embodiment and the electricity with it according to a second aspect of the present invention with reference to Fig. 8-Figure 14 Dynamic oil pump assy 1000.
As shown in figure 8, oil pump component 1 according to an embodiment of the present invention, comprising: pump case component 12 and pump oil mechanism 11.
As shown in Figure 8 and Figure 11, there is inlet port 101, multiple oil discharge outlets 102 and oil scupper 103, row on pump case component 12 Oil groove 103 includes confluence portion 1031 and the correspondence of confluence portion 1031 is connected to multiple distributary divisions 1032 of multiple oil discharge outlets 102, That is oil scupper 103 includes confluence portion 1031 and multiple distributary divisions 1032, multiple distributary divisions 1032 respectively correspondingly with Multiple oil discharge outlets 102 are connected to, and each distributary division 1032 is connected to confluence portion 1031, when the oil in pump case component 12 is drained into remittance After in stream portion 1031, multiple oil discharge outlets 102 can be flowed to by multiple distributary divisions 1032 respectively, pump oil mechanism 11 includes pump oil portion 112, pump oil portion 112 is located in pump case component 12 and passes through oil scupper 103 to multiple oil discharge outlets for realizing from inlet port 101 102 pump oil work.
Specifically, oil pump component 1 is in the process of work, pump oil portion 112 carries out pump oil work by driving (such as can be with It is directly driven realization rotation pump oil work or directly driven by shaft 111 as described herein by drive shaft 24 as described herein It is dynamic to realize rotation pump oil work etc.), at this point, the oil outside pump case component 12 can be drawn into pump case component 12 by inlet port 101 It is interior, it then pumps by pump oil portion 112 into the confluence portion 1031 of oil scupper 103, into the oil in confluence portion 1031 along multiple Distributary division 1032 flows to multiple oil discharge outlets 102 respectively, is then discharged by multiple oil discharge outlets 102.
Oil pump component 1 according to an embodiment of the present invention as a result, due to oil discharge outlet 102 have it is multiple, so as to the row of raising Oily efficiency is dispersed and is reduced the damping of the oil extraction at each oil discharge outlet 102, thereby reduces the operating noise of oil pump component 1.
In some embodiments of the invention, pump oil portion 112 realizes pump oil work by rotation, such as pump oil portion 112 can Think inside engaged gear group or external gear pump group or rotary blade described above, multiple oil discharge outlets 102 are along pump oil portion 112 Rotation axis circumferential direction (circumferential direction of the rotation axis of driving gear 112A as described above and the rotation of driven gear 112B The circumferential direction of axis) be spaced apart distribution and along the radial direction in pump oil portion 112 (rotation axis of driving gear 112A as described above The radial direction of radial and driven gear 112B rotation axis) perforation, thus, it is possible to improve oil extraction efficiency, reduce oil extraction damping and Oil extraction noise.Certainly, the invention is not limited thereto, such as in other specific examples of the present embodiment, pump oil portion 112 can also lead to It crosses other modes (such as swing, translation etc.) other than rotation and realizes pump oil work.
In some embodiments of the invention, as shown in figure 8, pump case component 12 includes: the pump housing 121 and is located at the pump housing 121 The pump cover 122 of axial one end, that is to say, that pump case component 12 includes the pump housing 121 and pump cover 122, limits axial direction in the pump housing 121 The cylinder chamber 1210 of both ends open, pump cover 122 are located at one end in 1210 axial direction of cylinder chamber, and oil scupper 103 is formed in pump cover 122 On, for example, oil scupper 103 can by the close pump housing 121 of pump cover 122 a side end face, be directed away from the pump housing 121 direction it is recessed Enter to be formed.Facilitate processing and manufacture as a result,.Such as in specific example shown in Fig. 8, the axis of the pump housing 121 is along the longitudinal direction Extend, the front-end and back-end of the pump housing 121 are respectively equipped with front pump cover 122A and rear pump cover 122B, and oil scupper 103 is formed in rear pump cover On 122B, and it is backwardly recessed and is formed by the front surface of rear pump cover 122B.Here, it should be noted that direction as described herein " preceding " is oil pump component 1 close to the side of rotor 23, and opposite side is " rear ", i.e., oil pump component 1 far from rotor 23 one Side.
Preferably, as shown in figure 11, confluence portion 1031 is arranged adjacent to the outer rim 1221 of pump cover 122, that is to say, that confluence portion There is small gap, such as gap can be 1mm~10mm between 1031 and the outer rim 1221 of pump cover 122；Moreover, confluence portion 1031 with it is more than the half-turn on 1221 border of outer rim radial (radial direction of the rotation axis of driving gear 112A as described above and The radial direction of the rotation axis of driven gear 112B) it is opposite, that is to say, that the pump housing 121 radially, confluence portion 1031 and outer rim It is more than the half-turn on 1221 borders opposite.Thus, it is possible to ensure that the volume of oil scupper 103 is larger, to further increase oil extraction Efficiency reduces oil extraction damping and oil extraction noise.
In some embodiments of the invention, as shown in Figure 8 and Figure 11, oil scupper 103 is axisymmetric shape, pump oil portion 112 fuel-displaced position is opposite with the axis of symmetry of oil scupper 103, such as when pump oil portion 112 is by driving gear 112A and driven When the external gear pump group of gear 112B composition, the starting point that driving gear 112A and driven gear 112B are meshed is pump oil portion 112 oil level that enters is set, and the end that driving gear 112A and driven gear 112B are meshed is the fuel-displaced position in pump oil portion 112. As a result, since the fuel-displaced position in pump oil portion 112 is opposite with the axis of symmetry of oil scupper 103, hence into in oil scupper 103 Oil can be spread at the same speed symmetrically towards the two sides of the axis of symmetry, and then diffuser efficiency can be improved to improve oil extraction efficiency, simultaneously Reduce oil extraction damping and oil extraction noise.Moreover, the structure of the oil scupper 103 of axisymmetric shape is simpler, more convenient processing.
In some embodiments of the invention, confluence portion 1031 extends along smooth curve, alternatively, confluence portion 1031 is along smooth Connected curve and straight line (quantity of curve and straight line herein is at least one) extend.Thus illustrate, confluence portion 1031 Extension line be not present sharp bending part, so as to reduce the side wall of the oil liquid flowed inside it Yu confluence portion 1031 Occur sharp impacts and caused by lose, and vibration and noise can be reduced.
As shown in figure 14, electric oil pump assembly 1000 can be used for according to the above-mentioned oil pump component 1 of the present embodiment.
Specifically, having total stowage 200, electric oil pump assembly as shown in Fig. 8 and Figure 14, in electric oil pump assembly 1000 There is total oil inlet 201 and total oil outlet 202, electric oil pump assembly 1000 includes: electric machine assembly 2 and this second aspect on 1000 Oil pump component 1 in embodiment, oil pump component 1 and electric machine assembly 2 are each provided in total stowage 200, and oil pump component 1 is by motor group The driving of part 2 is realized (can be with reference to above-mentioned first aspect embodiment to the work of the pump oil of total oil outlet 202 from total oil inlet 201 It explains, does not repeat here).As a result, as described above and below, since oil pump component 1 is located at oil-overflow total stowage 200 It is interior, vibration and the noise of electric oil pump assembly 1000 can be effectively reduced, and improve the compact-sized of electric oil pump assembly 1000 Property.
In some embodiments of the invention, as shown in figure 14, total stowage 200 includes motor room 200A and oil pump cabin 200B (can refer to the explanation of above-mentioned first aspect embodiment, do not repeat here), motor room 200A is connected to total oil inlet 201, Oil pump cabin 200B is connected to total oil outlet 202, wherein oil pump component 1 is located in the 200B of oil pump cabin, the inlet port of oil pump component 1 101 are connected to motor room 200A, and multiple oil discharge outlets 102 of oil pump component 1 are connected to oil pump cabin 200B.Institute as follows as a result, It states, work noise and the vibration of oil pump component 1 can be effectively reduced, to reduce 12 wall thickness of pump case component, weight and cost.
In addition, other of electric oil pump assembly 1000 according to an embodiment of the present invention constitute and other deformation schemes, it can be with Referring to described in above and below, for example, embodiments described just below one is into the electric oil pump assembly 1000 of embodiment ten, as long as It is the feature that does not contradict or can replace with the electric oil pump assembly 1000 of second aspect of the present invention embodiment, can makees For the deformation scheme of the electric oil pump assembly 1000 of second aspect of the present invention embodiment, fall under the scope of the present invention, Here it does not repeat.
In the following, with reference to Figure 22 and Figure 28, description according to a third aspect of the present invention the oil pump component 1 of embodiment and with its Electric oil pump assembly 1000.
As shown in Figure 22 and Figure 26, oil pump component 1 according to an embodiment of the present invention, comprising: pump oil mechanism 11, pump cover 122, Supporting 15 and sealing ring 14.Here, it should be noted that the pump cover 122 in third aspect embodiment preferably singly holds pump 122M1 is covered, but not limited to this, and the pump cover 122 in this third aspect embodiment can also hold pump cover 122M2, non-hold to be double Pump cover 122M3 etc..It is only illustrated so that the pump cover 122 in this third aspect embodiment is singly to hold pump cover 122M1 as an example below, After those skilled in the art have read following technical solution, it is clear that it is understood that the pump cover 122 in this third aspect embodiment For the technical solution and beneficial effect of other types pump cover.
As shown in Figure 22 and Figure 26, pump oil mechanism 11 includes connected shaft 111 and pump oil portion 112, singly holds pump cover 122M1 is located at the axial side in pump oil portion 112, that is to say, that on the rotation axis direction of shaft 111, singly holds pump cover 122M1 is located at the side in pump oil portion 112, singly hold on pump cover 122M1 have the support holes K1 that cooperates with shaft 111 with shaft Axial plane (i.e. peripheral wall surfaces) sliding friction in portion 111 cooperates, and supporting 15, which is located at, singly to be held between pump cover 122M1 and pump oil portion 112, is held End face (i.e. axial end face) with the via hole K2 and supporting 15 and pump oil portion 112 that pass through for shaft 111 on fitting 15 is sliding Dynamic friction cooperation.Here, it should be noted that " rotation axis of shaft 111 " the as described herein, " rotation in pump oil portion 112 Axis " is parallel line, i.e., parallel with the axis of driving shaft described above, the axis of driven shaft, the axis of shaft appoints Meaning straight line.
Shaft 111 can be with the support holes K1 that singly holds on pump cover 122M1 after passing through the via hole K2 on supporting 15 as a result, Sliding friction cooperation.In this way, singly holding pump cover 122M1 due to the dependence of 11 one side of pump oil mechanism carries out radial branch to shaft 111 It holds, on the other hand supporting 15 relied on to carry out axial bearing to pump oil portion 112, so as to save fore bearing shown in Fig. 4 Seat 13A, rear bearing block 13B, so that the structure of oil pump component 1 is more compact, compact, weight is lighter, cost is lower.
It is understood that as shown in figure 22, oil pump component 1 may include pump case component 12, and pump case component 12 can wrap Include the pump housing 121 and it is above-mentioned singly hold pump cover 122M1, there is inlet port 101 and oil discharge outlet 102 on pump case component 12,111 turns of shaft Pump oil portion 112 carries out pump oil work in dynamic process, at this point, the oil outside pump case component 12 can be drawn by inlet port 101 In pump case component 12, oil discharge outlet 102 then is flowed to by pump oil portion 112, pump case component 12 is then discharged to by oil discharge outlet 102 Outside.
As shown in Figure 22, Figure 26 and Figure 27, sealing ring 14 is located at supporting 15 and singly holds between pump cover 122M1, sealing ring The suction of space 141 (i.e. along the radial direction of sealing ring 14, sealing ring 14 is around the closed space gone out) with oil pump component 1 in 14 ring Hydraulic fluid port 101 be connected to one of in oil discharge outlet 102 (herein, if oil discharge outlet 102 be it is multiple, refer to space in ring 141 be either connected to inlet port 101 otherwise with multiple oil discharge outlets 102), the ring external space 142 of sealing ring 14 is (i.e. along sealing The radial direction of ring 14, the space except i.e. sealing ring 14, i.e. space in ring other than space 141) with the oil suction of oil pump component 1 Mouthfuls 101 be connected to another in oil discharge outlet 102 (herein, if oil discharge outlet 102 be it is multiple, refer to that the ring external space 142 is wanted Be connected to inlet port 101 otherwise with multiple oil discharge outlets 102), pump oil portion 112 is for pumping the oil liquid in space 141 in ring to ring The external space 142.
That is, the function of sealing ring 14 is by the working chamber (cylinder chamber 1210 i.e. in the pump housing 121) in pump oil portion 112 It is isolated into oil pressure different First pressure chamber 100A and second pressure chamber 100B, wherein space 141 is First pressure chamber in ring It a part of 100A and is connected to one of in inlet port 101 and oil discharge outlet 102, the ring external space 142 is second pressure chamber It a part of 100B and is connected to another in inlet port 101 and oil discharge outlet 102.
As shown in Figure 22 and Figure 28, when inlet port 101 with space 141 is connected in ring when, oil discharge outlet 102 and the ring external space When 142 connection, oil liquid can be sucked First pressure chamber 100A by inlet port 101 during working by pump oil portion 112, then The oil liquid in First pressure chamber 100A is pumped into second pressure chamber 100B again, then the oil liquid in second pressure chamber 100B can lead to Cross the discharge of oil discharge outlet 102.
As shown in Figure 35 and Figure 40, when inlet port 101 is connected to the ring external space 142, space in oil discharge outlet 102 and ring When 141 connection, oil liquid can be sucked second pressure chamber 100B by inlet port 101 during working by pump oil portion 112, then The oil liquid in second pressure chamber 100B is pumped into First pressure chamber 100A again, then the oil liquid in First pressure chamber 100A can lead to Cross the discharge of oil discharge outlet 102.
Thus, on the one hand, supporting 15 can play the role of being effectively protected to sealing ring 14, avoid 112 turns of pump oil portion Soft sealing ring 14 is damaged when dynamic, sealing ring 14 is avoided to lose sealing function, it is ensured that First pressure chamber 100A and second pressure The isolation effect of chamber 100B is reliable, so that oil pump component 1 can have reliable liter oil pressure performance；In another aspect, in pump oil portion 112 relative to supporting 15 rotation make supporting 15 occur friction loss when, sealing ring 14 can be in the elastic compression power of itself The motive force towards 112 direction of pump oil portion is applied to supporting 15 under effect, to ensure that supporting 15 can play pump oil portion 112 To reliable axial supporting role, prevent pump oil portion 112 from axial float occurs.
In some embodiments of the invention, supporting 15 is the metal material materials and parts that hardness is less than pump oil portion 112, thus, When pump oil portion 112 is rotated relative to supporting 15, sliding friction occurs for the end face in pump oil portion 112 and the surface of supporting 15, by It is less than the hardness in pump oil portion 112 in the hardness of supporting 15, to illustrate that pump oil portion 112 can wear supporting 15, and holds Fitting 15 cannot wear pump oil portion 112.Supporting 15 can play the role of being effectively protected to pump oil portion 112 as a result,.Separately Outside, since supporting 15 is metal material materials and parts, is formed using metal material processing, thus facilitate acquisition and processing, supporting The bearing performance in 15 pairs of pump oil portions 112 is good, protective value is good and at low cost.
Optionally, pump oil portion 112 is steel part, and supporting 15 is aluminium sheet or copper sheet, that is to say, that pump oil portion 112 can adopt It is process with steel, supporting 15 can be process using aluminium or copper material.Thus, it is possible to ensure the hard of supporting 15 Degree is less than the hardness in pump oil portion 112, it is ensured that pump oil portion 112 can for a long time, steadily and reliably work, and supporting 15 can be with Reliably, stablize and chronically support and protect pump oil portion 112, and pump oil portion 112 and supporting 15 facilitate processing and acquisition, at This is low.
In some embodiments of the invention, as shown in figure 22, on the side end face towards pump oil portion 112 of supporting 15 With the lubrication groove 104 being connected to via hole K2.The oil liquid that pump oil portion 112 is pumped into or pumps out as a result, can enter lubrication groove 104 It is interior, and entered along lubrication groove 104 and contact realization lubrication in via hole K2 with shaft 111, improve the suitable of the rotation of shaft 111 Smooth property.
In some embodiments of the invention, as shown in figure 22, on the side end face towards pump oil portion 112 of supporting 15 The turbulent slot 105 being oppositely arranged (referring to explained above) is set with the oil level that enters with pump oil portion 112, that is to say, that pump oil portion 112 The oil of intake side can enter in turbulent slot 105, to oil pump component 1 can be made to suck by the way that turbulent slot 105 is arranged Oil liquid disorder, to reduce the exhaust noise of oil pump component 1.
In some alternative embodiments of the invention, singly holds pump cover 122M1 and be two and be respectively provided at the axial direction of the pump housing 121 Two sides, supporting 15 are two and are respectively provided at two and singly hold between pump cover 122M1 and the axial sides end face in pump oil portion 112 (example out not shown).The modularization of oil pump component 1 is stronger as a result, more convenient to install.Other of the invention can Select in embodiment, singly hold pump cover 122M1 and supporting 15 be one and be located at pump oil portion 112 axial direction it is ipsilateral (such as Figure 26 institute Show).The compactedness of oil pump component 1 is more preferable as a result, minimizes stronger.
In some embodiments of the invention, it such as Figure 22 and Figure 25, singly holds on pump cover 122M1 with described close for installing The holding tank 1222 of seal ring 14.Thus, it is possible to improve the installation effectiveness and functional reliability of sealing ring 14.
According to the present embodiment, above-mentioned oil pump component 1 can be used for electric oil pump assembly 1000.
Specifically, having total stowage 200 as shown in Figure 22 and Figure 28, in electric oil pump assembly 1000, total stowage 200 is set There are total oil inlet 201 and total oil outlet 202, electric oil pump assembly 1000 includes: in electric machine assembly 2 and this third aspect embodiment Oil pump component 1, oil pump component 1 and electric machine assembly 2 are each provided in total stowage 200, and oil pump component 1 is connected with electric machine assembly 1 (above-mentioned first party can be referred to be realized by the driving of electric machine assembly 2 from total oil inlet 201 to the work of the pump oil of total oil outlet 202 The explanation of face embodiment, does not repeat here).As a result, as described above and below, due to oil pump component 1 be located at it is oil-overflow In total stowage 200, vibration and the noise of electric oil pump assembly 1000 can be effectively reduced, and improve electric oil pump assembly 1000 Structural compactness.
In addition, other of electric oil pump assembly 1000 according to an embodiment of the present invention constitute and other deformation schemes, it can be with Referring to described in above and below, for example, embodiments described just below one is into the electric oil pump assembly 1000 of embodiment ten, as long as It is the feature that does not contradict or can replace with the electric oil pump assembly 1000 of third aspect present invention embodiment, can makees For the deformation scheme of the electric oil pump assembly 1000 of third aspect present invention embodiment, fall under the scope of the present invention, Here it does not repeat.
In the following, with reference to Figure 29-Figure 46, description according to a fourth aspect of the present invention the oil pump component 1 of embodiment and with its Electric oil pump assembly 1000.
As shown in Figure 34, Figure 40 and Figure 46, electric oil pump assembly 1000 according to an embodiment of the present invention, comprising: total stowage 200, oil pump component 1 and electric machine assembly 2, total stowage 200 can be for oil-overflow cabin and total stowage 200 is equipped with total oil inlet 201 and total oil outlet 202.
As shown in Figure 29, Figure 35, Figure 41, Figure 34, Figure 40 and Figure 46, electric machine assembly 2 is located in total stowage 200, oil pump group Part 1, which is located in total stowage 200 and is driven by electric machine assembly 2, realizes pump oil work, and oil pump component 1 includes the pump housing 121, the pump housing 121 The radial direction and the i.e. pump housing 121 of at least one of inlet port 101 and oil discharge outlet 102 for tubular and oil pump component 1 along the pump housing 121 Axially through the pump housing 121.Here, it should be noted that " pump housing 121 is tubular " is not limited to rule as broad understanding The shapes such as cylinder, square tube, as long as the cylinder chamber of both ends open, conical cavity etc. can be limited in the pump housing 121, moreover, Due to being formed with open inlet port 101 and/or oil discharge outlet 102 on the pump housing 121, the pump housing 121 is that peripheral wall tool is jaggy Tubular rather than the closed tubular of peripheral wall.
Electric oil pump assembly 1000 according to an embodiment of the present invention as a result, due in inlet port 101 and oil discharge outlet 102 At least one penetrates through the pump housing 121 of tubular radially and axially, so that inlet port 101 and/or oil discharge outlet 102 are configured to out Put formula opening shape, not for the hole road shape that is connected such as adapter tube.As a result, when inlet port 101 is above-mentioned open knot When structure, the pump housing 121 can directly pass through open inlet port 101 fast absorbing oil out of it is dipped in oil, when oil discharge outlet 102 is When above-mentioned Open architecture, the pump housing 121 can directly by the open oil extraction into the oil that it is dipped in of oil discharge outlet 102, thus The oil suction and/or oil extraction efficiency of the pump housing 121 can be not only effectively improved, and oil suction and/or oil extraction damping, drop can be reduced Low part noise.
In addition, electric oil pump assembly 1000 according to an embodiment of the present invention, since oil pump component 1 is disposed entirely within full of oil Total stowage 200 in wrapped up by oil, so as to minimizing 121 wall thickness of the pump housing of oil pump component 1, so that oil pump component 1 Weight saving, occupied space reduce, but also can reduce the transmitting work noise outward of oil pump component 1, can additionally reduce The seal request of oil pump component 1, reduces the design and investment of seal member, and then reduces the body of electric oil pump assembly 1000 Product, weight, cost and noise are more favorable for it vehicle-mounted.
Preferably, there is electric machine assembly 2 and oil pump component 1 to be each provided in total stowage 200 for total stowage 200, and electric machine assembly 2 can To include drive shaft 24, oil pump component 1 can also include the pump oil portion 112 being located in the pump housing 121, pump oil portion 112 and drive shaft 24 are directly or indirectly connected, and realize pump oil work to be driven by drive shaft 24.
Specifically, as shown in Figure 34, Figure 40 and Figure 46, electric oil pump assembly 1000 in the process of work, motor group The rotor 23 of part 2 drives the rotation of 24 relative stator 22 of drive shaft, and drive shaft 24 drives the pump in coupled pump oil mechanism 11 The work of oily portion 112 (such as drive shaft 24 can directly be connected with pump oil portion 112, drive shaft 24 can also by with pump oil mechanism 11 shaft 111 is connected with pump oil portion 112), during pump oil mechanism 11 works, oil outside casing 21 can by always into Hydraulic fluid port 201 enters in total stowage 200, and the oil in total stowage 200 can be entered in the pump housing 121 by inlet port 101, the pump housing Oil in 121 can be discharged to outside casing 21 from total oil outlet 202 by oil discharge outlet 102 or is discharged to by oil discharge outlet 102 In total stowage 200, then passes through total oil outlet 202 and be discharged to outside casing 21.Here it is possible to understand, in the present embodiment, electricity Thermomechanical components 2 may include rotor 23 and stator 22, and pump oil mechanism 11 may include shaft 111, can not also include shaft 111。
In some embodiments of the invention, as shown in figure 41, inlet port 101 and oil discharge outlet 102 are along the diameter of the pump housing 121 To with axially through the pump housing 121, that is to say, that inlet port 101 and oil discharge outlet 102 are both formed on the side wall of the pump housing 121.By This, facilitates processing and manufacture, and can effectively improve the oil suction and oil extraction efficiency of the pump housing 121, and can reduce oil suction It is damped with oil extraction, reduces local noise.
In some embodiments of the invention, as shown in figure 41, the radial direction of inlet port 101 and oil discharge outlet 102 along the pump housing 121 It is oppositely arranged.Facilitate processing and assembly as a result, and the functional reliability and validity of oil pump component 1 can be improved.It is preferred that Ground, the opening width W1 of inlet port 101 and the opening width W2 of oil discharge outlet 102 are equal, more convenient processing as a result, Er Qiefang Civilian dress is matched.Here, it should be noted that " open length of hydraulic fluid port (including inlet port 101, oil discharge outlet 102) " herein refers to It is open length of the hydraulic fluid port in 121 axial direction of the pump housing, since hydraulic fluid port is along axially through the pump housing 121, the opening of hydraulic fluid port Length is equal with the axial length of the pump housing 121, and " the opening width of hydraulic fluid port (including inlet port 101, oil discharge outlet 102) " refers to oil Mouth is perpendicular to the opening width on its length direction.
In some embodiments of the invention, as shown in Figure 29, Figure 35 and Figure 41, when inlet port 101 radially and axially When penetrating through the pump housing 121, the ratio between opening width W1 and the inner cavity maximum width W of the pump housing 121 of inlet port 101 are 3/6~5/6, when When oil discharge outlet 102 penetrates through the pump housing 121 radially and axially, the opening width W2 of oil discharge outlet 102 and the inner cavity of the pump housing 121 are maximum wide Spending the ratio between W is 3/6~5/6.As a result, by so limiting the opening width of 121 upper hydraulic fluid port of the pump housing, hydraulic fluid port on the one hand may insure Open area it is enough, with good oil suction and/or oil extraction effect, on the other hand in the assembly pump housing 121 and pump oil portion 112 When, it can be convenient assembly, improve assembly efficiency, and improve the whole structural reliability of oil pump component 1.
In some embodiments of the invention, as shown in Figure 29 and Figure 35, oil pump component 1 further includes being located at 121 axis of the pump housing To the pump cover 122 of one end, pump cover 122 herein non-can hold pump cover 122M3 (as shown in Figure 1) or Dan Cheng to be as described herein Pump cover 122M1 (as shown in figure 22) or double is held pump cover 122M2 (as shown in Figure 61), its in inlet port 101 and oil discharge outlet 102 In one be formed on the pump housing 121, another in inlet port 101 and oil discharge outlet 102 is formed on pump cover 122 (i.e. along the pump housing 121 axially through pump cover 122).The structure of the pump housing 121 is simple as a result, facilitates processing and manufacture.
Specifically, as shown in figure 34, total stowage 200 includes motor room 200A and oil pump cabin 200B (herein, oil pump cabin 200B It is that isolation is located in motor room 200A, i.e. oil pump cabin 200B is directly connected to motor room 200A not by oilhole, oil duct etc., That is motor room 200A wraps up oil pump cabin 200B), oil pump component 1 is located in the 200B of oil pump cabin, when inlet port 101 is along axially through pump When lid 122, motor room 200A is connected to total oil inlet 201, and oil pump cabin 200B is connected to total oil outlet 202, inlet port 101 and electricity Cabin 200A connection, oil discharge outlet 102 are connected to oil pump cabin 200B.As a result, as described below, oil pump component 1 can be effectively reduced Work noise and vibration, and without 102 outer ring of oil discharge outlet be arranged sealing ring (even if i.e., pump case component 12 leak, let out The oil liquid of leakage also enters directly into the 200B of oil pump cabin, will not get rid of in air), to reduce 12 wall thickness of pump case component, again Amount and cost.
In some embodiments of the invention, as shown in Figure 40 and Figure 46, total stowage 200 includes motor room 200A ' and oil (herein, oil pump cabin 200B ' can be directly connected to pump room 200B ' with motor room 200A ' by oilhole, oil duct etc., therefore total stowage 200 can be considered as integrated installation cabin 200C, that is to say, that total stowage 200 is simultaneously not divided into independent motor room 200A and oil Pump room 200B), oil pump component 1 is located in the 200B ' of oil pump cabin, when inlet port 101 penetrates through the pump housing 121 radially and axially, is inhaled Hydraulic fluid port 101 is connected to oil pump cabin 200B ', and by oil expulsion channel 2110, (wherein, the isolation of oil expulsion channel 2110 is located at integrated oil discharge outlet 102 In installation cabin 200C, i.e. oil expulsion channel 2110 is not connected to directly with the oil in the 200C of integrated installation cabin) it is connected to total oil outlet 202. The structure of motor pump assembly is simple as a result, facilitates processing and installation, and the work that can equally reduce oil pump component 1 is made an uproar Sound and vibration, and no setting is required sealing ring (even if i.e., pump case component 12 leak, the oil liquid of leakage also enters directly into collection At in installation cabin 200C, will not get rid of in air), to reduce 12 wall thickness of pump case component, weight and cost.
Preferably, as shown in Figure 40 and Figure 46, the flow passage configuration in the 200C of integrated installation cabin passes through total oil inlet at when oil liquid Mouth 201 first flows through electric machine assembly 2 stator 22 after entering in the 200C of integrated installation cabin flows to oil pump component 1 again.As a result, by pair Runner in the 200C of integrated installation cabin is configured, and the heat dissipation effect of electric machine assembly 2 can be improved.
In addition, other of electric oil pump assembly 1000 according to an embodiment of the present invention constitute and other deformation schemes, it can be with Referring to described in above and below, for example, embodiments described just below one is into the electric oil pump assembly 1000 of embodiment ten, as long as It is the feature that does not contradict or can replace with the electric oil pump assembly 1000 of fourth aspect present invention embodiment, can makees For the deformation scheme of the electric oil pump assembly 1000 of fourth aspect present invention embodiment, fall under the scope of the present invention, Here it does not repeat.
In the following, with reference to Figure 41-Figure 53, description according to a fifth aspect of the present invention the oil pump component 1 of embodiment and with its Electric oil pump assembly 1000.
As shown in Figure 41 and Figure 47, oil pump component 1 according to an embodiment of the present invention, comprising: the pump housing 121, pump oil mechanism 11 With supporting member (double as described herein to hold pump cover 122M2, bearing block 13).
As shown in Figure 41 and Figure 47, oil pump component 1 includes inlet port 101 and oil discharge outlet 102, limits edge in the pump housing 121 The open cylinder chamber 1210 of the axial ends of the pump housing 121, pump oil mechanism 11 include connected shaft 111 and pump oil portion 112, pump Oily portion 112 is located in cylinder chamber 1210 and works for realizing from inlet port 101 to the pump oil of oil discharge outlet 102, that is to say, that turns Pump oil portion 112 carries out pump oil work during axle portion 111 rotates, so that the oil outside pump case component 12 can pass through inlet port 101 are drawn into oil pump component 1, then flow to oil discharge outlet 102 by pump oil portion 112, are then discharged to oil by oil discharge outlet 102 Outside pump assembly 1.
Specifically, as shown in Figure 41 and Figure 47, supporting member (double as described herein to hold pump cover 122M2, bearing block 13) It is located at the axial side in pump oil portion 112 (i.e. the rotation axis in pump oil portion 112) and supporting member is (double as described herein to hold pump cover 122M2, bearing block 13) on there is the support holes K1 that cooperate with shaft 111, supporting member (pair holds pump cover as described herein 122M2, bearing block 13) on the one hand axial plane (i.e. peripheral wall surfaces) the sliding friction cooperation of (by support holes K1) and shaft 111, another On the one hand (pass through its axial end face) and cooperate with end face (i.e. axial end face) sliding friction in pump oil portion 112.In this way, due to pump oil Mechanism 11 not only can carry out diameter to shaft 111 by supporting member (double as described herein to hold pump cover 122M2, bearing block 13) To bearing, simultaneously may also rely on supporting member (as described herein double hold pump cover 122M2, bearing block 13) to pump oil portion 112 into The axial bearing of row, to simplify the structure of oil pump component 1 so that the structure of oil pump component 1 is more compact, compact, weight more Gently, cost is lower.
In some alternative embodiments of the invention, as shown in Figure 41 and Figure 44, supporting member is to be located at outside the pump housing 121 and seal The double of 121 shaft end of the lid pump housing hold pump cover 122M2.Supporting member also has other than having the function of supporting pump oil mechanism 11 as a result, There is sealing function, so as to further increase the whole working effect of oil pump component 1, and improves the installation of oil pump component 1 Efficiency.
In other alternative embodiments of the invention, as shown in Figure 47 and Figure 51, supporting member be located in the pump housing 121 and Bearing block 13 positioned at 121 shaft end of the pump housing.Thus, it is possible to reduce the axial dimension of oil pump component 1, so that oil pump component 1 is more Meet miniaturization production requirement.
In some alternative embodiments of the invention, as shown in figure 51, supporting member (bearing block 13 as described herein) is Two and it is supported on the axial sides of pump oil mechanism 11 respectively.The structure of oil pump component 1 is simple as a result, and functional reliability is high.
In other alternative embodiments of the invention, as shown in figure 41, supporting member is (double as described herein to hold pump cover It is 122M2) one and is supported on the axial side of pump oil mechanism 11.Thus, it is possible to reduce the axial dimension of oil pump component 1, make It obtains oil pump component 1 and is more in line with miniaturization production requirement.
In some embodiments of the invention, supporting member (double as described herein to hold pump cover 122M2, bearing block 13) is hard Degree is less than the metal material materials and parts in pump oil portion 112, thus, in pump oil portion, 112 counter support is (double as described herein to hold pump cover 122M2, bearing block 13) rotation when, the end face in pump oil portion 112 and supporting member are (double as described herein to hold pump cover 122M2, bearing Sliding friction occurs for the surface of seat 13), due to the hardness of supporting member (double as described herein to hold pump cover 122M2, bearing block 13) Less than the hardness in pump oil portion 112, thus illustrate pump oil portion 112 can by supporting member (as described herein it is double hold pump cover 122M2, Bearing block 13) abrasion, and supporting member (double as described herein to hold pump cover 122M2, bearing block 13) cannot grind pump oil portion 112 Damage.Supporting member (double as described herein to hold pump cover 122M2, bearing block 13) can play effective guarantor to pump oil portion 112 as a result, Shield effect.In addition, since supporting member (double as described herein to hold pump cover 122M2, bearing block 13) is metal material materials and parts, i.e. use Metal material processing forms, to facilitate acquisition and processing, supporting member is (double as described herein to hold pump cover 122M2, bearing block 13) good to the bearing performance in pump oil portion 112, protective value is good and at low cost.
Optionally, pump oil portion 112 is steel part, and supporting member (double as described herein to hold pump cover 122M2, bearing block 13) is aluminium Plate or copper sheet, that is to say, that pump oil portion 112 can be process using steel, and supporting member is (double as described herein to hold pump cover 122M2, bearing block 13) it can be process using aluminium or copper material.Thus, it is possible to ensure supporting member (as described herein It is double to hold pump cover 122M2, bearing block 13) hardness be less than the hardness in pump oil portion 112, it is ensured that pump oil portion 112 can it is long-term, stablize and It reliably works, and supporting member (double as described herein to hold pump cover 122M2, bearing block 13) can be reliable, stable and long-term Ground bearing and protection pump oil portion 112, and pump oil portion 112 and supporting member are (double as described herein to hold pump cover 122M2, bearing block 13) facilitate processing and acquisition, it is at low cost.
In some embodiments of the invention, the court of supporting member (double as described herein to hold pump cover 122M2, bearing block 13) There is the lubrication groove (out not shown) be connected to support holes K1 on a side end face in pump oil portion 112.Pump oil portion 112 pumps as a result, The oil liquid for entering or pumping out can enter in lubrication groove, and enter in via hole K2 along lubrication groove and contact reality with shaft 111 It now lubricates, improves the smoothness that shaft 111 rotates.
In some embodiments of the invention, the court of supporting member (double as described herein to hold pump cover 122M2, bearing block 13) Have on a side end face in pump oil portion 112 and sets the turbulent flow being oppositely arranged (referring to explained above) with the oil level that enters in pump oil portion 112 Slot (not shown go out), that is to say, that the oil of 112 intake side of pump oil portion can enter in turbulent slot, to pass through setting turbulent flow Slot, the oil liquid disorder that oil pump component 1 can be made to suck, to reduce the exhaust noise of oil pump component 1.
According to the present embodiment, above-mentioned oil pump component 1 can be used for electric oil pump assembly 1000.
Specifically, electric oil pump assembly 1000 includes total stowage 200 as shown in Figure 46 and Figure 53, total stowage 200 is equipped with Total oil inlet 201 and total oil outlet 202, electric machine assembly 2 are located in total stowage 200 and including drive shaft, oil pump component 1 be this The oil pump component 1 of five aspect embodiments, oil pump component 1 be located in total stowage 200 and be connected with drive shaft 24 with realization from always into The pump oil of hydraulic fluid port 201 to total oil outlet 202 works.As a result, as described above and below, since oil pump component 1 is located at full of oil Total stowage 200 in, can be effectively reduced vibration and the noise of electric oil pump assembly 1000, and improve electric oil pump assembly 1000 Structural compactness.
In some embodiments of the invention, as shown in Figure 51 and Figure 53, electric oil pump assembly 1000 includes end cap 21, end Lid 21 is at least partially disposed in total stowage 200 and supports drive shaft 24, when supporting member is to be located in the pump housing 121 and be located at the pump housing When the bearing block 13 of 121 shaft ends, the end 2431 of the setting bearing block 13 of the pump housing 121 is covered by end cap 211.Thus, it is possible to mention The functional reliability of high 121 component of the pump housing.
In addition, other of electric oil pump assembly 1000 according to an embodiment of the present invention constitute and other deformation schemes, it can be with Referring to described in above and below, for example, embodiments described just below one is into the electric oil pump assembly 1000 of embodiment ten, as long as It is the feature that does not contradict or can replace with the electric oil pump assembly 1000 of fifth aspect present invention embodiment, can makees For the deformation scheme of the electric oil pump assembly 1000 of fifth aspect present invention embodiment, fall under the scope of the present invention, Here it does not repeat.
In the following, with reference to Figure 54-Figure 67, description according to a sixth aspect of the present invention the oil pump component 1 of embodiment and with its Electric oil pump assembly 1000.
As shown in Figure 60 and Figure 67, electric oil pump assembly 1000 according to an embodiment of the present invention, comprising: 200, oil of always shipping Pump assembly 1 and electric machine assembly 2.
As shown in Figure 54 and Figure 60, Figure 61 and Figure 67, electric machine assembly 2 is located in total stowage 200, and electric machine assembly 2 includes end Lid 211 and drive shaft 24, end cap 211 support drive shaft 24, have support holes on end cap 211, oil pump component 1 is located at total stowage In 200 and including pump oil mechanism 11, pump oil mechanism 11 includes that connected shaft 111 and pump oil portion 112, shaft 111 can turn It is set to support holes dynamicly, end cap 211 is cooperated by axial plane (i.e. peripheral wall surfaces) sliding friction of support holes and shaft 111.Also It is to say, pump oil mechanism 11 can carry out radial support to shaft 111 by end cap 211.
Electric oil pump assembly 1000 according to an embodiment of the present invention as a result, since the shaft 111 of oil pump component 1 borrows The end cap 211 of electric machine assembly 2 is supported, so as to save oil pump component 1 itself for supporting the supporting member of shaft 111 (double as described herein to hold pump cover 122M2, bearing block 13), so that the axial length of oil pump component 1 reduces, and then can reduce Connection distance between electric machine assembly 2 and oil pump component 1, so that the structure of electric oil pump assembly 1000 is more compact, compact, again Amount is lighter, cost is lower, more convenient vehicle-mounted carrying.
In some currently preferred embodiments of the present invention, electric oil pump assembly 1000 may include casing assembly, casing assembly Including casing 21, casing 21 limits oil-overflow total stowage 200 in casing 21, has total oil inlet 201 in total stowage 200 With total oil outlet 202, rotor 23 is connected with drive shaft 24 and is each provided in total stowage 200, and electric machine assembly 2 may include rotor 23 With stator 22,23 relative stator 22 of rotor can be rotated and be connected with drive shaft 24, and pump oil portion 112 is located at the separate of end cap 211 and turns The two sides that the side of son 23, i.e. rotor 23 and pump oil portion 112 are distributed in end cap 211.
Specifically, electric oil pump assembly 1000 is in the process of work, rotor 23 drives 24 relative stator 22 of drive shaft Rotation, drive shaft 24 be connected with shaft 111 with (direct or indirect) drive shaft portion 111 (including driving shaft described above, Driven shaft, shaft) rotation, during shaft 111 rotates, pump oil portion 112 carries out pump oil work, what pump oil mechanism 11 worked In the process, the oil outside casing 21 can be entered by total oil inlet 201 in total stowage 200, and the oil in total stowage 200 can lead to Total oil outlet 202 is crossed to be discharged to outside casing 21.Here it is possible to understand, in the present embodiment, electric machine assembly 2 may include Stator 22 and drive shaft 24.
In addition, electric oil pump assembly 1000 according to an embodiment of the present invention, since oil pump component 1 is disposed entirely within full of oil Total stowage 200 in wrapped up by oil, so as to minimizing 121 wall thickness of the pump housing of oil pump component 1, so that oil pump component 1 Weight saving, occupied space reduce, but also can reduce the transmitting work noise outward of oil pump component 1, can additionally reduce The seal request of oil pump component 1, reduces the design and investment of seal member, and then reduces the body of electric oil pump assembly 1000 Product, weight, cost and noise are more favorable for it vehicle-mounted.
In some embodiments of the invention, as shown in Figure 60 and Figure 67, end cap 211 (passing through its axial end face) and pump oil End face (i.e. axial end face) sliding friction in portion 112 cooperates.That is, in addition to can by end cap 211 to shaft 111 into Other than row radial support, axial bearing can also be carried out to pump oil portion 112.Thus, it is possible to be further simplified oil pump component 1 and electricity The overall structure of dynamic oil pump assy 1000, keeps its structure more compact, succinct.
In some embodiments of the invention, end cap 211 is the metal material materials and parts that hardness is less than pump oil portion 112, thus, When pump oil portion 112 is rotated relative to end cap 211, sliding friction occurs for the end face in pump oil portion 112 and the surface of end cap 211, due to end The hardness of lid 211 is less than the hardness in pump oil portion 112, thus illustrate that pump oil portion 112 can wear end cap 211, and end cap 211 is not Pump oil portion 112 can be worn.End cap 211 can play the role of being effectively protected to pump oil portion 112 as a result,.In addition, due to end cap 211 it is metal material materials and parts, formed using metal material processing, to facilitate acquisition and processing, end cap 211 is to pump oil portion 112 Bearing performance is good, protective value is good and at low cost.
Optionally, pump oil portion 112 is steel part, and end cap 211 is aluminium sheet or copper sheet, that is to say, that pump oil portion 112 can use Steel are process, and end cap 211 can be process using aluminium or copper material.Thus, it is possible to ensure that the hardness of end cap 211 is small Hardness in pump oil portion 112, it is ensured that pump oil portion 112 can for a long time, steadily and reliably work, and end cap 211 can it is reliable, Stablize and chronically support and protect pump oil portion 112, and pump oil portion 112 and end cap 211 facilitate processing and acquisition, it is at low cost.
In some embodiments of the invention, have on the side end face towards pump oil portion 112 of end cap 211 and support holes The lubrication groove (not shown go out) of K1 connection.The oil liquid that pump oil portion 112 is pumped into or pumps out as a result, can enter in lubrication groove, and It is entered along lubrication groove and contacts realization lubrication in via hole K2 with shaft 111, improve the smoothness that shaft 111 rotates.
In some embodiments of the invention, have and pump oil portion on the side end face towards pump oil portion 112 of end cap 211 112 oil level that enters sets turbulent slot that (referring to explained above) be oppositely arranged (not shown go out), that is to say, that 112 oil suction of pump oil portion The oil of side can enter in turbulent slot, so that the oil liquid disorder of the sucking of oil pump component 1 can be made by the way that turbulent slot is arranged, To reduce the exhaust noise of oil pump component 1.
Certainly, the invention is not limited thereto, in other embodiment of the invention, between end cap 211 and pump oil portion 112 Be also provided with supporting 15 described above, there is the via hole K2 passed through for shaft 111 on supporting 15, supporting 15 with The end face sliding friction cooperation (example out not shown) in pump oil portion 112, at this point, end cap 211 does not carry out directly pump oil portion 112 Axial bearing.Supporting 15 can effectively protect effect to end cap 211 as a result, reduce the difficulty of processing of end cap 211.
In some alternative embodiments of the invention, as shown in Figure 61 and Figure 67, the separate end cap 211 in pump oil portion 112 Side be equipped with it is double hold pump cover 122M2, double hold has the support holes K1 cooperated with shaft 111 on pump cover 122M2, double to hold pump cover 122M2 on the one hand with shaft 111 reach pump oil portion 112 far from 211 side of end cap axial plane sliding friction cooperation, it is another The end face sliding friction of 211 side of separate end cap in aspect and pump oil portion 112 cooperates.That is, pump oil mechanism 11 is on the one hand It holds pump cover 122M2 by double axial bearing is carried out to pump oil portion 112, on the other hand also hold pump cover 122M2 to shaft by double 111 carry out radial support, and the end 2431 of another further aspect oil pump component 1 is held pump cover 122M2 by pair and is sealed.As a result, may be used To simplify the overall structure of oil pump component 1.
In other alternative embodiments of the invention, as shown in Figure 54 and Figure 60, the separate end cap 211 in pump oil portion 112 Side be equipped with singly hold pump cover 122M1, singly hold between pump cover 122M1 and pump oil portion 112 be equipped with supporting 15, singly hold pump cover There is the support holes K1 cooperated with shaft 111 on 122M1, there is the via hole K2 passed through for shaft 111 on supporting 15, it is single The pump oil portion 112 that reaches for holding pump cover 122M1 and shaft 111 cooperates far from the axial plane sliding friction of 211 side of end cap, accepts The end face sliding friction of 211 side of separate end cap in part 15 and pump oil portion 112 cooperates.That is, pump oil mechanism 11 is on the one hand Axial bearing is carried out to pump oil portion 112 by supporting 15, on the other hand shaft 111 is carried out by singly holding pump cover 122M1 The end 2431 of radial support, another further aspect oil pump component 1 is sealed by singly holding pump cover 122M1.Thus, it is possible to simplify oil The overall structure of pump assembly 1.
In still other alternative embodiment of the invention, as shown in Figure 1 and Figure 7, the separate end cap 211 in pump oil portion 112 Pump cover 122M3 is held equipped with non-in side, and non-hold is equipped with bearing block 13 between pump cover 122M3 and pump oil portion 112, bearing block 13 is on the one hand Axial plane sliding friction cooperation, another aspect and pump oil of the pump oil portion 112 far from 211 side of end cap are reached with shaft 111 The end face sliding friction of 211 side of separate end cap in portion 112 cooperates.That is, 11 one side of pump oil mechanism passes through bearing block 13 pairs of pump oil portions 112 carry out axial bearing, on the other hand also carry out radial support to shaft 111 by bearing block 13, further The end 2431 of aspect oil pump component 1 is sealed by the non-pump cover 122M3 that holds.Thus, it is possible to simplify the entirety of oil pump component 1 Structure.
In short, " double to hold pump cover 122M2 ", " singly holding pump cover 122M1 " as described herein and " non-to hold pump cover 122M3 " Something in common be: can the end 2431 to oil pump component 1 be sealed, difference place be: it is double to hold pump cover 122M2 Axially and radially dual bearing can be carried out respectively to pump oil portion 112 and shaft 111, singly hold pump cover 122M1 and be only capable of to shaft 111 carry out radial substance bearing, and the non-pump cover 122M3 that holds cannot support pump oil portion 112 and shaft 111.In addition, herein The difference of " bearing block 13 " and " double to hold pump cover 122M2 " is: bearing block 13 cannot end 2431 to oil pump component 1 It is sealed, but axially and radially dual bearing can be carried out respectively to pump oil portion 112 and shaft 111.In addition, this paper institute The difference of " bearing block 13 " and " supporting 15 " stated is: supporting 15 is only capable of carrying out pump oil portion 112 axial substance bearing.
In addition, other of electric oil pump assembly 1000 according to an embodiment of the present invention constitute and other deformation schemes, it can be with Referring to described in above and below, for example, embodiments described just below one is into the electric oil pump assembly 1000 of embodiment ten, as long as It is the feature that does not contradict or can replace with the electric oil pump assembly 1000 of sixth aspect present invention embodiment, can makees For the deformation scheme of the electric oil pump assembly 1000 of sixth aspect present invention embodiment, fall under the scope of the present invention, Here it does not repeat.
In the following, describing the vehicle X of embodiment according to a seventh aspect of the present invention.
As shown in Figure 68, vehicle X according to an embodiment of the present invention, the electric oil pump assembly 1000 including above-described embodiment. Specifically, electric oil pump assembly 1000 can be used for the steering system and/or lubricating system of vehicle X.Wherein, when according to this hair When the electric oil pump assembly 1000 of bright embodiment is used for steering system, electric oil pump assembly 1000 is exported from total oil outlet 202 Oil liquid can drive transverse bar displacement to realize by the piston push rod of power cylinder and turn to, it is possible thereby to improve steering system Structural compactness, steering manipulation, job stability etc..When electric oil pump assembly 1000 according to an embodiment of the present invention is for moistening When sliding system, lubricating oil can be pumped into the system for needing to lubricate by electric oil pump assembly 1000, thus, it is possible to improve profit The structural compactness and job stability of sliding system.
Vehicle X according to an embodiment of the present invention as a result, by the way that the electric oil pump assembly 1000 of above-described embodiment is arranged, by Has many advantages, such as compact above structure, at low cost, low noise, light-weight in electric oil pump assembly 1000, so as to substantially mention The overall performance of high vehicle X.In addition, other compositions such as car body and air-conditioning system etc. of vehicle X according to an embodiment of the present invention And operation be all for those of ordinary skills it is known, be not detailed herein.
In the following, describing the oil pump component 1 of multiple specific embodiments and the electricity with it according to the present invention with reference to Fig. 1-Figure 67 Dynamic oil pump assy 1000.
Embodiment one
- Fig. 7 referring to Fig.1, electric oil pump assembly 1000 include casing 21, oil pump component 1 and electric machine assembly 2.
In the present embodiment one, casing 21 is limited in casing 21 and is full of for accommodating oil pump component 1 and electric machine assembly 2 Total stowage 200 of oil, when total stowage 200 includes motor room 200A and oil pump cabin 200B, motor room 200A and oil pump cabin 200B are simultaneously It is not connected to directly by oilhole or oil duct, electric machine assembly 2 is located in motor room 200A, and oil pump component 1 is located in the 200B of oil pump cabin.
As Figure 1-Figure 5, oil pump component 1 includes pump oil mechanism 11, pump case component 12, bearing block 13 and sealing ring 14, Wherein, pump oil mechanism 11 includes shaft 111 and pump oil portion 112, and wherein shaft 111 includes driving shaft 111A and driven shaft 111B, pump oil portion 112 include driving gear 112A and driven gear 112B, and pump case component 12 includes the pump housing 121 and pump cover 122, Pump cover 122 includes front pump cover 122A and rear pump cover 122B, and front pump cover 122A and rear pump cover 122B are without supporting functions Non- to hold pump cover 122M3, bearing block 13 includes front-end bearing pedestal 13A and rear bearing block 13B, sealing ring 14 include preceding sealing ring 14A and Increasing back sealing ring 14B.
As Figure 1-Figure 5, the pump housing 121 is the tubular of both ends open, and the axis of the pump housing 121 extends along the longitudinal direction with true The front-end and back-end for protecting the pump housing 121 are opened wide respectively, and front pump cover 122A is sealed on the front end of the pump housing 121, and rear pump cover 122B is sealed on The rear end of the pump housing 121 has on front pump cover 122A so as to form working chamber between front pump cover 122A, the pump housing 121 and rear pump cover 122B Have and penetrate through along the longitudinal direction and the inlet port 101 that be connected to working chamber, have on rear pump cover 122B penetrate through along the longitudinal direction and with The oil discharge outlet 102 of working chamber connection, in the axial direction of the pump housing 121, inlet port 101 and oil discharge outlet 102 are not face.Wherein, preceding Pump cover 122A, the pump housing 121 and rear pump cover 122B can connect by the way that two bolts 16 for being oppositely arranged and axially extending are fixed It connects.
As Figure 1-Figure 5, the driving gear 112A in pump oil portion 112 and driven gear 112B is intermeshed and is each provided at In working chamber, and the rotation axis of the rotation axis of driving gear 112A and driven gear 112B are flat with the axis of the pump housing 121 Row, wherein driving gear 112A can be connected or be integrated with driving shaft 111A, and driven gear 112B and driven shaft 111B can To be connected or be integrated, there is axis hole 1121,2431 inserting of end of drive shaft 24 is connected to axis hole on driving shaft 111A In 1121.
As Figure 1-Figure 5, front-end bearing pedestal 13A is located between pump oil portion 112 and front pump cover 122A and on the one hand bearing is led The front end face and driven gear of the axial plane and the axial plane of driven shaft 111B of moving axis 111A, on the other hand bearing driving gear 112A The front end face of 112B, rear bearing block 13B are located between pump oil portion 112 and rear pump cover 122B and on the one hand support driving shaft 111A's The rear end of the axial plane of axial plane and driven shaft 111B, the on the other hand rear end face of bearing driving gear 112A and driven gear 112B Face.The sliding friction cooperation between two components for referring to relatively rotating " is supported " herein.
As Figure 1-Figure 5, preceding sealing ring 14A is located between front-end bearing pedestal 13A and front pump cover 122A, increasing back sealing ring 14B It is located between rear bearing block 13B and rear pump cover 122B, along the axis projection of the pump housing 121, preceding sealing ring 14A and increasing back sealing ring 14B It is overlapped, before inlet port 101 is fallen in the circle of sealing ring 14A and increasing back sealing ring 14B, sealing ring 14A is with after before oil discharge outlet 102 is fallen in Outside the circle of sealing ring 14B, so that working chamber is divided into the First pressure chamber 100A being connected to inlet port 101 and and oil extraction Oil in second pressure the chamber 100B, First pressure chamber 100A of 102 connection of mouth is driving gear 112A's and driven gear 112B It can be pumped under engagement in second pressure chamber 100B.
As a result, as Figure 1-Figure 5, when drive shaft 24 drives pump oil portion 112 to work, oil can pass through front pump cover 122A On inlet port 101 enter in First pressure chamber 100A, then by the engagement of driving gear 112A and driven gear 112B Effect is pumped into second pressure chamber 100B, is then discharged by the oil discharge outlet 102 on rear pump cover 122B.
As shown in Fig. 1-Fig. 7, electric machine assembly 2 includes stator 22, rotor 23 and drive shaft 24, wherein drive shaft 24 is sky There is central blind hole 2401 that is axially extending along its and penetrating through 24 1 side end face of drive shaft, drive shaft 24 in mandrel and drive shaft 24 Level is that its axis is arranged along the longitudinal direction, and the rear end of drive shaft 24 has the radial direction oil hole 2402 being connected to central blind hole 2401.
As shown in Fig. 1-Fig. 7, electric machine assembly 2 includes (such as passing through rolling bearing for supporting the end cap 211 of drive shaft 24 28 bearings), casing 21 includes the front housing portion 212 and rear shell portion 213 for being mounted on 211 front and rear sides of end cap, front housing portion 212 and rear shell Total stowage 200 is limited between portion 213, casing 21 further includes the cover board in rear shell portion 213 and being mounted on rear side of end cap 211 214, the oil pump cabin 200B for accommodating oil pump component 1 is limited between cover board 214 and end cap 211, total 200 oil removing pump rooms of shipping Part other than 200B is the motor room 200A for accommodating stator 22 and rotor 23, and the front end of drive shaft 24 is located at motor room It is connected in 200A and with rotor 23, the rear end of drive shaft 24 extend into the 200B of oil pump cabin and passes through spline with driving gear 112A Inserting connection.
As shown in Fig. 1-Fig. 7, oil pump component 1 in the 200B of oil pump cabin floating mount to end cap 211, such as oil pump component 1 It can be by being oppositely arranged and front pump cover 122A being pre-positioned on end cap 211 along its two axially extending positioning pin 17 (rather than front pump cover 122A is fixed on end cap 211 by screw) is equipped with pre-pressing bullet between cover board 214 and rear pump cover 122B Spring 25 (such as helical spring, waveform spring, disk spring), pre-pressing spring 25 are used for 1 pre-pressing of oil pump component in end cap On 211, to prevent from generating gap, motor room between front pump cover 122A and end cap 211 when electric oil pump assembly 1000 starts Oil in 200A is directly entered in the 200B of oil pump cabin and can not enter the problem in oil pump component 1 by inlet port 101.Separately Outside, in order to further increase the sealing effect between oil pump component 1 and end cap 211, it is ensured that the oil in motor room 200A can be suitable Benefit is drawn into working chamber from inlet port 101, and sealing device 18 can be arranged between end cap 211 and front pump cover 122A.
Moreover, because oil pump component 1 is above-mentioned floated installation, and it is not secured on end cap 211, therefore can pacify It fills and translation play occurs in plane, in this way, when drive shaft 24 rotates, the rotation of the rotary part and oil pump component 1 of electric machine assembly 2 Rotation member can adaptively to the heart, (such as in the present embodiment one, drive shaft 24 and driving shaft 111A be adaptively to the heart, later In embodiment, drive shaft 24, shaft coupling 27, driving shaft 111A are adaptively to the heart), to reduce work noise.Moreover, because oily After pump assembly 1 is run, oil pump component 1 exports oil liquid and can pour into the 200B of oil pump cabin, so as to generate high pressure, by oil pump group Part 1 is pressed on forward on end cap 211, and oil pump component 1 is allowed more reliably to carry out oil suction by inlet port 101, so that The operation of oil pump component 1 is more reliable and more stable.
As shown in Fig. 1-Fig. 7, there is total oil inlet 201 and total oil outlet 202 on casing 21, wherein 201 He of total oil inlet Total oil outlet 202 can be set on end cap 211 and open distribution in the circumferentially-spaced of casing 21, wherein total oil inlet 201 It is connected to motor room 200A, total oil outlet 202 is connected to oil pump cabin 200B.
Preferably, as Figure 6-Figure 7, total oil inlet 201 can be arranged at the highest point of casing 21, in this way, working as When oil liquid flows into casing 21 from total oil inlet 201, the gas be conducive in casing 21 is discharged from total oil inlet 201 (with arrow in figure The solid line of head represents the flow direction of oil liquid, and chain-dotted line with the arrow represents the flow direction of gas), total oil outlet 202 can be set in machine At the arbitrary height position of shell 21.
Preferably, as Figure 6-Figure 7, the peripheral wall surfaces in rear shell portion 213 are designed and are transversely mounted using the conical surface, thus rear shell Portion 213 can have guiding role, allow the residual gas inside casing 21 along the conical surface preferably from total 201 row of oil inlet Out, the residual gas in casing 21 is thoroughly discharged when design feature runs convenient for electric oil pump assembly 1000.
As Figure 6-Figure 7, oil baffle 26 is provided between stator 22 and end cap 211, to avoid from total oil inlet 201 The oil entered in motor room 200A is directly drawn into the problem in oil pump component 1 by inlet port 101, to ensure from total oil inlet Mouthfuls 201 oil entered can effectively circulate in front housing portion 212 and rear shell portion 213, that is, ensure from oil inlet into The oil entered can by oil duct on electric machine assembly 2 (such as oil duct can be gap between stator 22 and front housing portion 212, It can be the gap between rear shell portion 213 and end cap 211 and cover board 214, oil duct can be one or more and can be along driving Axis 24 it is axially extending), and ensure that oil liquid can be entered at inlet port 101 by the central blind hole 2401 in drive shaft 24, And then ensure that electric machine assembly 2 can obtain good heat dissipation effect.
In this way, pump oil portion 112 works when electric oil pump assembly 1000 works, the oil liquid outside casing 21 can be from total Oil inlet 201 enters in motor room 200A, then passes through the central blind hole 2401 and the stream of radial direction oil hole 2402 in drive shaft 24 To the inlet port 101 of oil pump component 1, oil liquid is pumped into the pump housing 121 from inlet port 101 and pumped from oil discharge outlet 102 by pump oil portion 112 It is arrived in the oil pump cabin 200B outside the pump housing 121 out, then oil liquid can be discharged by the total oil outlet 202 being connected to oil pump cabin 200B To outside casing 21.Here it is possible to understand, oil liquid flow into casing 21 after, although may enter stator 22, rotor 23, In gap between drive shaft 24 and oil baffle 26 etc., but have no effect on the above-mentioned general flow direction of oil liquid.
As a result, according to the electric oil pump assembly 1000 of the present embodiment, due to being full of oil liquid, electric oil pump assembly in casing 21 Component in 1000 in addition to casing 21 is totally submerged in oil liquid (certainly, casing 21 is also possible to be immersed in oil liquid), thus The noise of movement components can be effectively reduced.Here it is possible to understand, electric oil pump assembly 1000 substantially has when running Two noise sources, one be oil pump component 1 noise, the other is the noise of electric machine assembly 2, oil pump component 1 is wrapped in oil In pump room 200B, oil pump cabin 200B is included in motor room 200A, when oil pump component 1 is run, oil pump cabin 200B and motor Oil liquid is each filled in the 200A of cabin, the noise that oil pump component 1 is run passes through oil pump cabin 200B, motor room 200A, the pump housing 121 and casing The multiple barriers such as 21, can greatly reduce the noise of motor pump assembly, moreover, because motor room 200A wraps up oil pump cabin 200B, so that the oil liquid pulsation of the output of oil pump component 1 can also be effectively reduced.
As a result, according to the electric oil pump assembly 1000 of the present embodiment, since the oil liquid in casing 21 circulates, also Be conducive to the heat dissipation of complete machine.Here it is possible to understand, when the oil liquid full of flowing in casing 21, stator 22 and rotor 23 It can sufficiently be contacted with oil liquid, since the thermal capacity of oil liquid is larger, so as to improve stator 22 and rotor 23 because of the fluctuation of load And the localized hyperthermia generated, and the oil liquid flowed can provide heat dissipation and lubrication simultaneously for the components of other movements, reduce The whole operation noise of electric oil pump assembly 1000.
In conclusion electric oil pump assembly 1000 according to an embodiment of the present invention, due to oil pump component 1 be mounted on oil pressure compared with In high oil pump cabin 200B, i.e. 1 periphery of oil pump component is wrapped up by high-voltage oil liquid, to have the advantages that (1) can set The wall thickness of the pump housing 121 is minimized on meter, reduces the weight of oil pump component 1；(2) it can reduce the pulsation of oil pump component 1 and make an uproar Sound；(3) oil pressure inside and outside the oil discharge outlet 102 of oil pump component 1 is equal, no longer needs to additionally be arranged in the outer ring of oil discharge outlet 102 Sealing ring reduces the wall thickness of the pump housing 121 to the greatest extent, effectively reduces cost and weight.In addition, due to electric machine assembly 2 The pump oil mechanism 11 of drive shaft 24 and oil pump component 1 connect using spline, so as to effectively reduce electric machine assembly 2 and oil pump Connection distance between component 1 reduces the weight of electric oil pump assembly 1000.In short, according to an embodiment of the present invention electronic Oil pump assy 1000, since oil pump component 1 is set to the inside of electric machine assembly 2, so as to which electric oil pump assembly is effectively reduced 1000 noise so that the structure of electric oil pump assembly 1000 more integrate it is compact.
Embodiment two
As shown in Fig. 8-Figure 14, the present embodiment is roughly the same with the structure of embodiment one, wherein identical component uses phase Same appended drawing reference, the difference is that: drive shaft 24 is different from the connection type of pump oil mechanism 11, the oil extraction of oil pump component 1 The set-up mode of mouth 102 is different.
Referring to Fig. 8-Figure 14, the shaft 111 (such as driving shaft 111A) of drive shaft 24 and pump oil mechanism 11 passes through shaft coupling 27 are connected.Wherein, shaft coupling 27 can be compactedness shaft coupling (i.e. compact-sized shaft coupling), such as to can be slide block type tight Gathering property shaft coupling relatively connects formula compactedness shaft coupling, gear type compactedness shaft coupling etc..
Referring to Fig. 8-Figure 14, oil discharge outlet 102 is multiple and is distributed in rear pump cover circumferentially spacedly along pump oil portion 112 122B is upper and the peripheral wall of pump cover 122 is penetrated through along the radial direction in pump oil portion 112, also has oil scupper 103, oil extraction on rear pump cover 122B Slot 103 includes the confluence portion 1031 being connected to the fuel-displaced position in pump oil portion 112 and connection in confluence portion 1031 and multiple oil discharge outlets Multiple distributary divisions 1032 between 102.As a result, in the present embodiment, the oil extraction mode of oil pump component 1 is by rear pump cover 122B Oil scupper 103 it is fuel-displaced, so as to disperse oil extraction damping, reduce local noise.
Embodiment three
As shown in Figure 15-Figure 21, the present embodiment is roughly the same with the structure of embodiment two, wherein identical component uses phase Same appended drawing reference, the difference is that: the front supporting scheme of pump oil mechanism 11 is different.
The front side of 5- Figure 21 referring to Fig.1, pump oil portion 112 do not have front-end bearing pedestal 13A, and front pump cover 122A holds pump cover by double 122M2 is replaced.The front end of driving shaft 111A and the front end of driven shaft 111B can hold pump cover 122M2 bearing by double as a result, from And the volume of oil pump component 1 can be further decreased, reduce cost.
Example IV
As shown in Figure 22-Figure 28, the present embodiment is roughly the same with the structure of embodiment three, wherein identical component uses phase Same appended drawing reference, the difference is that: the rear support scheme of pump oil mechanism 11 is different.
Referring to Figure 22-Figure 28, the rear bearing block 13B of 112 rear side of pump oil portion is replaced by supporting 15, and rear pump cover 122B is by list Pump cover 122M1 replacement is held, so as to further decrease the volume of oil pump component 1, reduces cost.
Embodiment five
As shown in Figure 29-Figure 34, the present embodiment is roughly the same with the structure of example IV, wherein identical component uses phase Same appended drawing reference, the difference is that: the setting position of the oil discharge outlet 102 of oil pump component 1 is different.
Referring to Figure 29-Figure 34, cancel the oil discharge outlet 102 on rear pump cover 122B, oil discharge outlet 102 be arranged on the pump housing 121, And oil discharge outlet 102 penetrates through the pump housing 121 both axially and radially and is configured to Open architecture, the oil liquid that pump oil portion 112 pumps up is directly logical Open oil discharge outlet 102 is crossed to be drained into the 200B of oil pump cabin, so that the oil extraction damping at oil discharge outlet 102 is significantly reduced, Reduce local noise.
Embodiment six
As shown in Figure 35-Figure 40, the present embodiment is roughly the same with the structure of example IV, wherein identical component uses phase Same appended drawing reference, the difference is that: the setting position of the inlet port 101 of oil pump component 1 and oil discharge outlet 102 is different, oil pump Layout type of the component 1 in electric machine assembly 2 is different, and the structure of drive shaft 24 is different, total oil inlet 201 and total oil outlet 202 Setting position it is different.
Referring to Figure 35-Figure 40, cancel the inlet port 101 on front pump cover 122A, cancels the oil discharge outlet on rear pump cover 122B 102, by inlet port 101 be arranged on the pump housing 121, and inlet port 101 penetrate through both axially and radially the pump housing 121 be configured to it is open Structure oil discharge outlet 102 is arranged on front pump cover 122A and along the process to work axially through front pump cover 122A, pump oil portion 112 In, oil liquid is entered in the pump housing 121 by open inlet port 101, is then pumped up by pump oil portion 112 and is passed through front pump cover Oil discharge outlet 102 on 122A is discharged.
In the present embodiment six, limits oil-overflow in casing 21 or always ship 200 ', 200 ' (i.e. integrated peaces of always shipping Ship 200C) when including motor room 200A ' and oil pump cabin 200B ', motor room 200A ' and oil pump cabin 200B ' pass through oilhole or oil Road is directly connected to, and electric machine assembly 2 is located in motor room 200A ', and oil pump component 1 is located in the 200B ' of oil pump cabin.
Referring to Figure 35-Figure 40,200 ' are shipped always as integrated installation cabin 200C, stator 22, rotor 23, drive shaft 24, oil pump Component 1 is installed in the 200C of integrated installation cabin, and specifically, oil pump component 1 is fixedly connected on end cap 211 using fixing bolt 29 On, total oil inlet 201 is located at the top of 21 front end of casing, and total oil outlet 202 is located at the top of end cap 211, is formed on end cap 211 There is the oil expulsion channel 2110 for keeping apart setting with the oil liquid in the 200C of integrated installation cabin, the both ends of oil expulsion channel 2110 are respectively communicated to always Oil outlet 202 and oil discharge outlet 102 do not have central blind hole 2401 and radial direction oil hole 2402 in drive shaft 24.
When electric machine assembly 2 works, the oil liquid outside casing 21 is entered in the 200C of integrated installation cabin by total oil inlet 201, Then it is entered in the pump housing 121 after stator 22 by open inlet port 101 from front to back, then passes through pump oil portion Oil expulsion channel 2110 on 112 oil discharge outlet 102 and end cap 211 from front pump cover 122A flows to total oil outlet 202 and is discharged.
Electric oil pump assembly 1000 according to an embodiment of the present invention as a result, since the inlet port 101 of oil pump component 1 is to open It puts formula structure and is directly connected to the integrated installation cabin 200C of low pressure, so as to omit extra sealing ring and reduce the pump housing 121 wall thickness further decreases the volume and cost of oil pump component 1, reduces oil suction damping and noise.
Embodiment seven
As shown in Figure 41-Figure 46, the present embodiment is roughly the same with the structure of embodiment six, wherein identical component uses phase With appended drawing reference, the difference is that: the setting position of the inlet port 101 of oil pump component 1 and oil discharge outlet 102 is different, always into Hydraulic fluid port 201 is different with the setting position of total oil outlet 202.
Referring to Figure 41-Figure 46, inlet port 101 and oil discharge outlet 102 are arranged on the pump housing 121, and both axially and radially The perforation pump housing 121 is configured to Open architecture, and oil discharge outlet 102 is located at the lower section of inlet port 101, the process that pump oil portion 112 works In, oil liquid is entered in the pump housing 121 by the inlet port 101 of 121 open-top of the pump housing, is then pumped up by pump oil portion 112 And it is discharged to outside the pump housing 121 by the oil discharge outlet 102 of 121 open bottom of the pump housing.
Referring to Figure 41-Figure 46, total oil inlet 201 is located at the top of end cap 211, and total oil outlet 202 is located at the bottom of end cap 211 Portion is formed with the oil expulsion channel 2110 for keeping apart setting with the oil liquid in the 200C of integrated installation cabin on end cap 211, oil expulsion channel 2110 Both ends are respectively communicated to total oil outlet 202 and oil discharge outlet 102.
When electric machine assembly 2 works, the oil liquid outside casing 21 is by total oil inlet 201 downwardly into integrated installation cabin 200C It is interior, then pass through stator 22 from back to front in the top of stator 22, again in the case where the front side of stator 22 flows down to stator 22 Side flows to oil pump component 1 by stator 22 from front to back again, then by the inlet port 101 of 1 open-top of oil pump component into Enter into the pump housing 121, then by passing downwardly through the oil expulsion channel on open oil discharge outlet 102 and end cap 211 behind pump oil portion 112 2110, which flow to total oil outlet 202, is discharged, so as to improve the heat dissipation effect of electric machine assembly 2 and oil pump component 1.
Electric oil pump assembly 1000 according to an embodiment of the present invention as a result, since the inlet port 101 of oil pump component 1 is to open It puts formula structure and is directly connected to the integrated installation cabin 200C of low pressure, and since the oil discharge outlet of oil pump component 1 102 is open knot Structure is directly connected to the oil expulsion channel of high pressure 2110, so as to omit the wall thickness of extra sealing ring and the reduction pump housing 121, into one Step reduces the volume and cost of oil pump component 1, reduces damping and the noise of oil suction and oil extraction.
Embodiment eight
As shown in Figure 47-Figure 53, the present embodiment is roughly the same with the structure of embodiment two, wherein identical component uses phase Same appended drawing reference, the difference is that: the front side capping scheme of oil pump component 1 is different.
Referring to Figure 47-Figure 53, the front side in pump oil portion 112 does not have front pump cover 122A, and the front side of the pump housing 121 is by electric machine assembly 2 end cap 211 covers, and inlet port 101 is directly limited by front-end bearing pedestal 13A and the pump housing 121.As a result, so as to further The axial dimension and volume for reducing oil pump component 1, reduce cost.
Embodiment nine
As shown in Figure 54-Figure 60, the present embodiment is roughly the same with the structure of example IV, wherein identical component uses phase Same appended drawing reference, the difference is that: the front supporting scheme of pump oil mechanism 11 is different.
Referring to Figure 54-Figure 60, cancels the double of 112 front side of pump oil portion and hold pump cover 122M2, shaft 111 is directly supported at On the end cap 211 of electric machine assembly 2, and provide pump oil portion 112 axial supporting force by end cap 211, inlet port 101 is directly by pump oil Portion 112 and the pump housing 121 limit.As a result, so as to further decreasing the axial dimension and volume of oil pump component 1, reduce at This.
Embodiment ten
As shown in Figure 61-Figure 67, the present embodiment is roughly the same with the structure of embodiment nine, wherein identical component uses phase Same appended drawing reference, the difference is that: the rear support scheme of pump oil mechanism 11 is different.
Referring to Figure 61-Figure 67, cancel the supporting 15 of 112 rear side of pump oil portion, holds pump cover 122M2 replacement rear pump cover using double 122B.As a result, so as to further decrease the axial dimension and volume of oil pump component 1, cost is reduced.
In the description of the present invention, it is to be understood that, term "front", "rear", " axial direction ", " radial direction ", " circumferential direction " etc. refer to The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplifies Description, rather than the device or element of indication or suggestion meaning must have a particular orientation, constructed and grasped with specific orientation Make, therefore is not considered as limiting the invention.
In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase To importance or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be with Explicitly or implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or Two or more, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be Meaning.In the present invention unless specifically defined or limited otherwise, fisrt feature can be in the second feature " on " or " down " One and second feature directly contacts or the first and second features are by intermediary mediate contact.

Claims (10)

1. a kind of electric oil pump assembly characterized by comprising
Total stowage；
Electric machine assembly, the electric machine assembly are located in total stowage, and the electric machine assembly includes end cap and drive shaft, the end Lid supports the drive shaft, has support holes on the end cap；
Oil pump component, the oil pump component are located in total stowage and including pump oil mechanisms, and the pump oil mechanism includes being connected Shaft and pump oil portion, the shaft be rotatably arranged in the support holes, the end cap passes through the support holes and institute State the axial plane sliding friction cooperation of shaft.
2. electric oil pump assembly according to claim 1, which is characterized in that the end face in the end cap and the pump oil portion is sliding Dynamic friction cooperation.
3. electric oil pump assembly according to claim 2, which is characterized in that the end cap is that hardness is less than the pump oil portion Metal material materials and parts.
4. electric oil pump assembly according to claim 3, which is characterized in that the pump oil portion is steel part, and the end cap is Aluminium sheet or copper sheet.
5. electric oil pump assembly according to claim 2, which is characterized in that the end cap towards the one of the pump oil portion There is the lubrication groove being connected to the support holes on side end face and/or set the turbulent flow being oppositely arranged with the oil level that enters in the pump oil portion Slot.
6. electric oil pump assembly according to any one of claims 1-5, which is characterized in that the end cap and the pump oil It is equipped with supporting between portion, there is the via hole passed through for the shaft, the supporting and the pump oil on the supporting The end face sliding friction in portion cooperates.
7. electric oil pump assembly according to any one of claims 1-5, which is characterized in that the separate institute in the pump oil portion State end cap side be equipped with it is double hold pump cover, it is described it is double hold pump cover on the one hand with the shaft to reach the pump oil portion separate The axial plane sliding friction cooperation of the rotor side, the end face far from the rotor side on the other hand with the pump oil portion are slided Dynamic friction cooperation.
8. electric oil pump assembly according to any one of claims 1-5, which is characterized in that the separate institute in the pump oil portion The side for stating end cap, which is equipped with, singly holds pump cover, and described singly hold is equipped with supporting between pump cover and the pump oil portion, described singly to hold pump cover With the shaft reach the pump oil portion far from the rotor side axial plane sliding friction cooperate, the supporting with The end face sliding friction far from the rotor side in the pump oil portion cooperates.
9. electric oil pump assembly according to claim 1, which is characterized in that one far from the end cap in the pump oil portion Side be equipped with it is non-hold pump cover, non-hold is equipped with bearing block between pump cover and the pump oil portion, the bearing block on the one hand with it is described Shaft reach the pump oil portion far from the rotor side axial plane sliding friction cooperation, on the other hand with the pump oil The end face sliding friction far from the rotor side in portion cooperates.
10. a kind of vehicle, which is characterized in that including electric oil pump assembly according to claim 1 to 9.
CN201711465547.9A 2017-12-28 2017-12-28 Electric oil pump assembly and vehicle with same Active CN109969259B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110863982A (en) * 2019-11-28 2020-03-06 江苏金湖输油泵有限公司 High-power engine fuel feed pump
WO2024060503A1 (en) * 2022-09-20 2024-03-28 安徽威灵汽车部件有限公司 Oil pumping device and vehicle

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Publication number Priority date Publication date Assignee Title
CN2198418Y (en) * 1994-05-24 1995-05-24 杨占英 High pressure large displacement gear oil pump
WO2013007233A1 (en) * 2011-07-14 2013-01-17 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Gear ring pump
CN202868269U (en) * 2012-10-30 2013-04-10 重庆跃进机械厂有限公司 Low noise gear type oil pump
CN203335396U (en) * 2013-06-24 2013-12-11 上海沪石石油机械有限公司 Full-immersion oil pump
CN104265627A (en) * 2014-09-11 2015-01-07 中山市罗顿五金机械有限公司 Electric hydraulic power device
CN204419616U (en) * 2014-12-15 2015-06-24 比亚迪股份有限公司 Oil pump assembly and the vehicle with it
CN204851631U (en) * 2015-05-29 2015-12-09 重庆红宇精密工业有限责任公司 A oil pump for vehicle automatic gearbox

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2198418Y (en) * 1994-05-24 1995-05-24 杨占英 High pressure large displacement gear oil pump
WO2013007233A1 (en) * 2011-07-14 2013-01-17 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Gear ring pump
CN202868269U (en) * 2012-10-30 2013-04-10 重庆跃进机械厂有限公司 Low noise gear type oil pump
CN203335396U (en) * 2013-06-24 2013-12-11 上海沪石石油机械有限公司 Full-immersion oil pump
CN104265627A (en) * 2014-09-11 2015-01-07 中山市罗顿五金机械有限公司 Electric hydraulic power device
CN204419616U (en) * 2014-12-15 2015-06-24 比亚迪股份有限公司 Oil pump assembly and the vehicle with it
CN204851631U (en) * 2015-05-29 2015-12-09 重庆红宇精密工业有限责任公司 A oil pump for vehicle automatic gearbox

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110863982A (en) * 2019-11-28 2020-03-06 江苏金湖输油泵有限公司 High-power engine fuel feed pump
WO2024060503A1 (en) * 2022-09-20 2024-03-28 安徽威灵汽车部件有限公司 Oil pumping device and vehicle

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