CN110450612A - Integrated electric drive assembly - Google Patents
Integrated electric drive assembly Download PDFInfo
- Publication number
- CN110450612A CN110450612A CN201910887872.7A CN201910887872A CN110450612A CN 110450612 A CN110450612 A CN 110450612A CN 201910887872 A CN201910887872 A CN 201910887872A CN 110450612 A CN110450612 A CN 110450612A
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- Prior art keywords
- gear
- motor
- differential
- differential mechanism
- differential casing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing provided between independent half axles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/40—Constructional details characterised by features of the rotating cases
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Retarders (AREA)
Abstract
The invention discloses a kind of integrated electric drive assembly, including differential mechanism, cabinet, jackshaft, intermediate constant mesh gear, motor, input gear, intermediate gear, the first installation room is equipped in cabinet, second installation room and third install room, it is indoor that the differential mechanism is located at the first installation, the end of differential mechanism is pivotally supported on cabinet, jackshaft is located in the second installation room, the both ends of jackshaft are pivotally supported on cabinet, intermediate constant mesh gear is fixed on jackshaft, intermediate constant mesh gear and differential mechanism cooperate, a part of motor is located in third installation room, motor is connect with cabinet, the torque output of the motor extends to the second installation interior, input gear is fixed on the torque output, intermediate gear is engaged with input gear, intermediate gear is fixed on jackshaft.The present invention has the advantages that reduce cost and reduces installation space.
Description
Technical field
The present invention relates to differential art fields, and in particular to a kind of integrated electric drive assembly.
Background technique
With the fast development of electric car industry, the requirement to components lightweight, components integrated level and efficiency is got over
Come stringenter.Vehicles Collected from Market, motor, controller and retarder generally individually manufacture, and motor and speed changer pass through fastener
It is bonded together, motor and controller fastener link together.This power assembly volume, outer dimension are big, meanwhile, automobile
Internal space is limited and limited, and this configuration of existing motor, controller and speed changer occupies biggish in automobile
Difficulty is brought to the general layout of vehicle in space, and totle drilling cost is relatively high, and the power-driven system of higher cost lacks competing
Strive power.Meanwhile prior art deceleration mechanism is connect with motor shaft by spline, there are wear-out failures for spline under longtime running
Risk.And each system column of existing scheme is separately fabricated, and peripheral interface and fastener is needed to connect, over all Integration degree it is low and
Higher cost；Motor is connect with retarder by spline simultaneously, and processing is complicated and is unfavorable for lightweight, whole system integrated level
It is low.
Summary of the invention
The present invention provides a kind of integrated electric drive assembly for reducing cost and reducing installation space.
Realize that the technical solution of above-mentioned purpose is as follows:
Integrated electric drive assembly, including differential mechanism, cabinet, jackshaft, intermediate constant mesh gear, motor, input gear, centre
Gear, interior the first installation room, the second installation room and the third of being equipped with of cabinet install room, and the differential mechanism is positioned at the first installation room
Interior, the end of differential mechanism is pivotally supported on cabinet, and jackshaft is located in the second installation room, and the both ends of jackshaft are rotatable
Ground is supported on cabinet, and intermediate constant mesh gear is fixed on jackshaft, and intermediate constant mesh gear and differential mechanism cooperate, motor
A part is located in third installation room, and motor is connect with cabinet, and the torque output of the motor extends to the second installation interior,
Input gear is fixed on the torque output, and intermediate gear is engaged with input gear, and intermediate gear is fixed on jackshaft.
The invention has the following advantages that
In the present invention, the torque output of motor extends to the second installation interior, and input gear is fixed on the torque output
End can effectively solve spline so that the torque output of input gear and motor in deceleration mechanism does not use spline connection
There is abrasiveness in connection, improve the reliability of power assembly, prolong its service life.Moreover, for existing scheme
Multiple bearing and the transmission of two axis, this scheme cancel reducer input shaft and more conducively work as front so that whole system structure is more compact
Lightweight, the miniaturization of case, to realize the target of low cost.Simultaneously compared with the prior art controller housing, reducer shell,
Electric machine casing it is separately fabricated, and each plate need to be connected by fastener etc., and whole system integrated level is low, this scheme by pair
System cabinet it is highly integrated, cost is lower.
Detailed description of the invention
Fig. 1 is the schematic diagram of the integrated electric drive assembly in the present invention；
Fig. 2 is the structural schematic diagram of the differential mechanism in the present invention；
Fig. 3 is the schematic diagram of the section structure of the differential mechanism in the present invention；
Fig. 4 is the schematic diagram of the differential casing in the present invention；
Fig. 5 is that the schematic diagram after differential casing and bearing is concealed on the basis of Fig. 2；
Fig. 6 is the schematic diagram of the section structure of Fig. 5；
Label in attachment:
A is differential mechanism, and 10 be differential casing, and 11 be cavity, and 12 be the first mounting hole, and 13 be the second mounting hole, and 14 be limit
Flange, 15 be neck；
20 be axle shaft gear, and 21 be first annular slot；
30 be axis, and 31 be card collar groove, and 32 be retainer ring,
40 be transmission gear；
50 be differential mechanism input gear, and 51 be annulus；
60 be bearing；
70 be the first isolated part, and 71 be the first extension, and 72 be the first curved transition sections, and 73 be the second extension, and 74 be the
Two curved transition sections；
80 be the second isolated part；
90 be cabinet, and 90a is that controller installs room, and 91 be the first installation room, and 92 be the second installation room, and 93 install room for third,
94 be jackshaft, and 95 be midship shaft bearing, and 96 be intermediate constant mesh gear, and 97 be input gear, and 98 be intermediate gear, and 99 be electricity
Machine ontology, B are torque output, and 100 be motor right bearing, and 101 be motor left bearing, and 102 be shaft, and 103 be oil sealing, 104
It is back end cover for motor for axle sleeve, 105,106 be inner water sleeve.
Specific embodiment
As shown in Figure 1, integrated electric drive assembly of the invention, including differential mechanism A, cabinet 90, jackshaft 94, centre are often
Meshing gear 96, motor, input gear 97, intermediate gear 98, the relationship to each section and between them carries out detailed below
Illustrate:
As shown in Fig. 2, differential mechanism A includes differential casing 10, axle shaft gear 20, semiaxis (not shown), axis 30, driving cog
40, differential mechanism input gear 50 are taken turns, the relationship to every part and between them is described in detail below:
As shown in Figure 1 to Figure 3, differential casing 10 has hollow cavity 11, and the cavity 11 of the differential casing 10 is preferred
It is set as spherical cavity, the cavity 11 of sphere may make the axle shaft gear 20 being assemblied in the cavity and transmission gear 40 and poor
There is bigger mating surface, so that the stability of axle shaft gear 20 and transmission gear 40 is more preferable between fast device shell 10.Differential mechanism
The both ends of shell 10 are respectively equipped with the first mounting hole 12, are set on the circumferential surface of differential casing 10 there are two the second opposite mounting hole
13.The outer shape of differential casing 10 preferably uses sphere, and the differential casing 10 of this shape makes differential casing 10
Have the characteristics that occupy little space.
As shown in Figures 2 to 4, axle shaft gear 20 is located in the hollow cavity 11 of the differential casing 10, axle shaft gear
20 be two, and axle shaft gear 20 preferentially uses bevel gear, inner wall of the axle shaft gear 20 in face of the cavity 11 of differential casing 10
Surface be spherical surface, in this way conducive to axle shaft gear 20 and cavity 11 cooperation.
As shown in Figure 2 to Figure 3, one end of semiaxis is fixedly connected with axle shaft gear 20, and the other end of semiaxis passes through differential mechanism
The semiaxis is movably arranged as on differential casing 10 after the first mounting hole 12 on shell 10.
As shown in Fig. 2, Fig. 3 and Fig. 5, the both ends of axis 30 are separately positioned on the second peace on the circumferential surface of differential casing 10
It fills in hole 13,12 clearance fit of axis 30 and the second mounting hole, the both ends of axis 30 are respectively equipped with card collar groove 31, and the end of axis 30 passes through
After second mounting hole 13, retainer ring 32 is mounted in card collar groove 31, so that the end of axis 30 is obtained axial limiting, to limit
30 axial float of axis.The axial direction of second mounting hole 13 and the axial direction of the first mounting hole 12 are mutually perpendicular to.
As shown in Figures 2 to 4, transmission gear 40 is arranged on the axis 30, and two transmission gears 40 are mounted on axis 30,
Transmission gear 40 and the axle shaft gear 20 are intermeshed.The axle shaft gear 20 and transmission gear 40 are two, and two and half
20 gear of axis is arranged symmetrically, and two transmission gears 40 are arranged symmetrically, and two axle shaft gears 20 and two transmission gears 40 are mutually nibbled
After conjunction, axle shaft gear 20 and transmission gear 40 mutually form axial limiting.Two transmission gears 40 are strutted by axle shaft gear 20, are made
The effect that axle shaft gear 20 forms limit to one end of two transmission gears 40 is obtained, prevents transmission gear 40 along the axial direction of axis 30
It is mobile.And the other end of transmission gear 40, then it is limited by differential casing 10, in this way, the both ends of transmission gear 40 are distinguished
By axial limiting, so as to avoid the axial movement of transmission gear 40.Since axle shaft gear 20 is two, and respectively in axis 30
Two sides, axle shaft gear 20 is engaged with two transmission gears 40 respectively, to make the stress balance of two transmission gears 40.Half axle gear
One end of wheel 20 is limited by differential casing 10, meanwhile, moving gear 40 generates reversed restriction effect to axle shaft gear 20, makes
The other end for obtaining axle shaft gear 20 is limited.
As shown in Figure 2 to Figure 3,50 sets of the differential mechanism input gear is on the circumferential surface of differential casing 10, along differential
Device input gear 50 and the circumferential of differential casing 10 fix differential mechanism input gear 50 and differential casing 10, and differential mechanism is defeated
Enter gear 50 and differential casing 10 preferentially using welding.Differential mechanism input gear 50 preferably uses helical gear.Differential mechanism input
Gear 50 is engaged with the power output gear (not shown) of speed changer, and the power of speed changer output is transmitted to differential mechanism input
Gear 50, so that differential mechanism be made to work.
As shown in Figures 2 to 4, it is preferable that the circumferential surface of the differential casing 10 is equipped with defining flange 14, the limit convex
Edge 14 and the axial end face formation of differential mechanism input gear 50 are supported, thus axis of the defining flange 14 to differential mechanism input gear 50
It is limited to being formed, and defining flange 14 plays help to the stability of the installation of differential mechanism input gear 50.Ring position
Flange 14 is annular in shape, and ring position flange 14 is integrally formed with differential casing 10.
As shown in Figures 2 to 4, the both ends of the differential mechanism input gear 50 are equipped with the annulus 51 axially extended, should
After annulus 51 and the defining flange 14 interference fit, then differential mechanism input gear 50 and the welding of differential casing 10 is solid
It is fixed.The inner circle and defining flange 14 of annulus 51 are interference fitted, such cooperation, when differential mechanism work, can not only be born
A part of circumferential direction active force, so that the circumferential active force that the welding position of differential mechanism input gear 50 and differential casing 10 is born
Subtract power, protective effect is formd to weld, so that the assembly of differential mechanism input gear 50 and differential casing 10 is more
Add firm.
It as shown in Figure 2 to Figure 3, further include bearing 60, the both ends of the differential casing 10, which are respectively equipped with, to be located around
Neck 15 around first mounting hole 12, the bearing 60 are mounted on neck 15, when the winding around the first mounting hole 12
After setting neck 15, neck 15 is annular in shape, and the inner hole of neck 15 is combined into one with the first mounting hole 12, so that support semiaxis
Part is increased, and neck 15 preferentially uses the structure integrally formed with differential casing 10, so that the stability of semiaxis obtains
It is promoted.
As shown in Fig. 3, Fig. 5 and Fig. 6, further include coefficient of friction be less than differential casing 10 and axle shaft gear 20 first
Isolated part 70, the first isolated part 70 is between differential casing 10 and axle shaft gear 20,70 one end of the first isolated part
With 10 clearance fit of differential casing, the other end and 20 clearance fit of axle shaft gear of the first isolated part 70.First isolation part
The coefficient of friction of part 70 is less than differential casing 10 and axle shaft gear 20, can reduce differential casing 10 and axle shaft gear
20 abrasion, meanwhile, the first isolated part 70 also acts gap between adjustment differential casing 10 and axle shaft gear 20
Effect, and the effect in the gap between axle shaft gear 20 and transmission gear 40 is adjusted, improve the precision of assembly, in turn
Promote the stability of transmission.
As shown in Fig. 3, Fig. 5 and Fig. 6, one end of first isolated part 70 is equipped with the first extension 71, and described first
Mounting hole 12 is stepped hole, and 71 clearance fit of the first extension is in the large diameter hole of the first mounting hole 12；First extension, 71 edge
The first isolated part 70 it is axially extending, between the first extension 71 and the first isolated part 70 be equipped with the first curved transition sections
72, by the cooperation of the first extension 71 and the first mounting hole 12, keep the position of the first isolated part 70.
As shown in Fig. 3, Fig. 5 and Fig. 6, the other end of the first isolated part 70 is equipped with the second extension 73, the half axle gear
The circumferential surface of wheel 20 is equipped with first annular slot 21, the second extension 73 and first annular 21 clearance fit of slot.First annular slot 21
Along the axially extending of the first isolated part 70, the second arc-shaped transition is equipped between the second extension 73 and the first isolated part 70
Portion 74 is further kept the position of the first isolated part 70 by the second extension 73.
As shown in Fig. 3, Fig. 5 and Fig. 6, further include coefficient of friction be less than differential casing 10 and transmission gear 40 second
Isolated part 80, the second isolated part 80 is between differential casing 10 and transmission gear 40.Second isolated part 80 rubs
It wipes coefficient and is less than differential casing 10 and axle shaft gear 20, the mill of differential casing 10 and axle shaft gear 20 can be reduced
Damage, meanwhile, the second isolated part 80 also acts the effect in gap between adjustment differential casing 10 and axle shaft gear 20, with
And the effect in the gap between transmission gear 40 and axle shaft gear 20 is adjusted, improve the precision of assembly, and then promoted and passed
Dynamic stability.
As shown in Figure 1, being equipped in cabinet 90, room 92 is installed in the first installation room 91, second and third installs room 93, cabinet
Controller installation room 90a is additionally provided on 90, controller installation room 90a is set to the side of third installation room 93.The differential mechanism A
In the first installation room 91, the end of differential mechanism A is pivotally supported on cabinet 90, and the both ends of differential mechanism A pass through respectively
Bearing 60 is supported on cabinet 90, when there is torque to act on differential mechanism input gear 50, enables differential casing 10
Rotation.Jackshaft 94 is located in the second installation room 92, and the both ends of jackshaft 94 are pivotally supported on cabinet 90, jackshaft 94
Both ends pass through midship shaft bearing 95 respectively and be supported on cabinet 90.Intermediate constant mesh gear 96 is fixed on jackshaft 94, in
Between hole on constant mesh gear 96 be unthreaded hole, it is fixed using hot pressing mode and jackshaft 94 on intermediate constant mesh gear 96.It is intermediate
Constant mesh gear 96 and differential mechanism cooperate, and intermediate constant mesh gear 96 is engaged with the differential mechanism input gear 50 in differential mechanism.
As shown in Figure 1, electric machine casing, controller housing are integrated to form cabinet 90 by the cabinet in the present invention together, cancel
Retarder right case in the prior art, electric machine casing, controller housing；Retarder internal input shaft is cancelled simultaneously, motor
Torque output directly connect with the input gear in retarder, eliminate spline connection；Relative to existing three bearing, four
Bearing design, the entire transmittance process of the input gear of this programme Motor torque output end and retarder only need two bearing branch
Support.
As shown in Figure 1, a part of motor is located in third installation room 93, motor is connect with cabinet 90, the motor
Torque output B is extended in the second installation room 92, and input gear 97 is fixed on the torque output, and input gear 97 is with mistake
It is full of the mode of hot pressing and torque output B is fixed.
As shown in Figure 1, intermediate gear 98 is engaged with input gear, intermediate gear 98 is fixed on jackshaft 94.Jackshaft
94 are equipped with the shaft shoulder, and by shaft shoulder axial limiting, the other end of jackshaft 94 passes through midship shaft bearing 95 for one end of jackshaft 94
Axial limiting.
As shown in Figure 1, the motor includes motor body 99, motor right bearing 100, motor left bearing 101, motor right axle
It holds 100 to be fixed on back end cover for motor 105, back end cover for motor 105 and cabinet 90 are fixed, and motor left bearing 101 is fixed on cabinet
On 90, motor body 99 includes the shaft 102 with the torque output B, one end of shaft 102 and motor right bearing 100
Cooperation, the other end and motor left bearing 101 of shaft 102 cooperate.
As shown in Figure 1, further include oil sealing 103 and form the axle sleeve 104 of limit to motor left bearing 101,103 sets of oil sealing
In shaft 102, the one end fits of oil sealing 103 and motor left bearing 101,104 sets of the axle sleeve other ends in shaft 102, axle sleeve
104 cooperate with 102 clearance fit of shaft, one end of axle sleeve 104 and the other end of motor left bearing 101, the other end of axle sleeve 104
It is supported with one end of input gear.It can prevent the lubricating oil in second chamber 92 from entering in third chamber by oil sealing 103, keep away
Exempt from lubricating oil to enter inside motor.
As shown in Figure 1, further including the inner water sleeve 106 cooling for motor, inner water sleeve 106 and cabinet 90 pass through friction welding
It is integrally fixed.Inner water sleeve 106 is located in third installation room 93 and fixes with cabinet 90, and inner water sleeve 106 is looped around around motor,
Hollow space between inner water sleeve 106 and shaft 102 is for installing the components such as stator and the rotor of motor.Outside inner water sleeve 106
Circumferential surface is equipped with multiple annular protrusions, these annular protrusions are arranged along the axially spaced-apart of inner water sleeve 106, two neighboring annular protrusion
Between formed for water flowing channel, annular protrusion be equipped with notch, in order to which two neighboring channel is mutually communicated.
The course of work of the invention are as follows: the rotation of motor side rotor drives shaft 102 to rotate, transfers power to retarder
Input gear 97, input gear 97 is meshed with intermediate gear 98, realizes power transmitting；Jackshaft 94 and differential mechanism input tooth
Wheel 50 is meshed, and power is transferred to differential mechanism A, differential mechanism A passes through internal transmission gear 40 and axle shaft gear 20 for power
It is transferred to semiaxis, semiaxis transfers power to vehicle, to realize the power transmitting of whole system.
Specific embodiment described herein is only to give an example to this patent.The technical field of the invention
Technical staff can make various modifications or additions to the described embodiments or be substituted in a similar manner, but
Without departing from the spirit of the invention or going beyond the scope defined by the appended claims.
Claims (10)
1. integrated electric drive assembly, including differential mechanism, cabinet, jackshaft, intermediate constant mesh gear, motor, input gear, in
Between gear, the first installation room, the second installation room and third are equipped in cabinet, room are installed, the differential mechanism is located at the first installation room
Interior, the end of differential mechanism is pivotally supported on cabinet, and jackshaft is located in the second installation room, and the both ends of jackshaft are rotatable
Ground is supported on cabinet, and intermediate constant mesh gear is fixed on jackshaft, and intermediate constant mesh gear and differential mechanism cooperate, motor
A part is located in third installation room, and motor is connect with cabinet, which is characterized in that the torque output of the motor extends to the
Two installations are indoor, and input gear is fixed on the torque output, and intermediate gear is engaged with input gear, and intermediate gear is fixed on
On jackshaft.
2. integrated electric drive assembly according to claim 1, which is characterized in that further include the interior water cooling for motor
Set, the inner water sleeve are located in third installation room and fix with cabinet, and inner water sleeve is looped around around motor.
3. integrated electric drive assembly according to claim 1, which is characterized in that the motor includes motor body, electricity
Machine right bearing, motor left bearing, motor left bearing are fixed on cabinet, and motor body includes having turning for the torque output
Axis, one end of shaft and motor right bearing cooperate, and the other end and motor left bearing of shaft cooperate；
Further include oil sealing and form the axle sleeve of limit to motor left bearing, oil-sealing sleeve is in shaft, oil sealing and motor left bearing
One end fits, axle sleeve covers the other end in shaft, and one end of axle sleeve and the other end of motor left bearing cooperate, axle sleeve it is another
It holds and is supported with one end of input gear.
4. integrated electric drive assembly according to claim 1, which is characterized in that intermediate constant mesh gear uses hot pressing side
Formula is fixed with jackshaft, and input gear is fixed by the way of hot pressing with torque output.
5. according to claim 1 to integrated electric drive assembly described in one of 4, which is characterized in that the differential mechanism includes:
Differential casing, differential casing have hollow cavity, and the both ends of differential casing are respectively equipped with the first mounting hole, poor
The second opposite mounting hole there are two being set on the circumferential surface of fast device shell；
Axle shaft gear, axle shaft gear are located in the hollow cavity of the differential casing；
One end of semiaxis, semiaxis is fixedly connected with axle shaft gear, and the other end of semiaxis passes through the first installation on differential casing
The semiaxis is movably arranged as on differential casing behind hole；
Axis, the both ends of axis are separately positioned in the second mounting hole on the circumferential surface of differential casing；
Transmission gear, transmission gear are arranged on the shaft, and transmission gear and the axle shaft gear are intermeshed；
Differential mechanism input gear, the differential mechanism input gear cover on the circumferential surface of differential casing, input tooth along differential mechanism
It takes turns and fixes differential mechanism input gear with differential casing with the circumferential of differential casing.
6. integrated electric drive assembly according to claim 5, which is characterized in that set on the circumferential surface of the differential casing
There is defining flange, the axial end face formation of the defining flange and differential mechanism input gear is supported.
7. integrated electric drive assembly according to claim 6, which is characterized in that the both ends of the differential mechanism input gear
Equipped with the annulus axially extended, after the annulus and defining flange interference fit, then by differential mechanism input gear with
Differential casing is welded and fixed.
8. integrated electric drive assembly according to claim 5, which is characterized in that further include that coefficient of friction is less than differential mechanism
First isolated part of shell and axle shaft gear, the first isolated part is between differential casing and axle shaft gear, and first
Isolated part one end and differential casing clearance fit, the other end and axle shaft gear clearance fit of the first isolated part.
9. integrated electric drive assembly according to claim 8, which is characterized in that one end of first isolated part is set
There is the first extension, first mounting hole is stepped hole, and the first extension clearance fit is in the large diameter hole of the first mounting hole；
The other end of first isolated part is equipped with the second extension, and the circumferential surface of the axle shaft gear is equipped with first annular slot, the
Two extensions and first annular slot clearance fit.
10. integrated electric drive assembly according to claim 5, which is characterized in that further include that coefficient of friction is less than differential
Second isolated part of device shell and transmission gear, the second isolated part is between differential casing and transmission gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887872.7A CN110450612B (en) | 2019-09-19 | 2019-09-19 | Integrated electric drive assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887872.7A CN110450612B (en) | 2019-09-19 | 2019-09-19 | Integrated electric drive assembly |
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| CN110450612A true CN110450612A (en) | 2019-11-15 |
| CN110450612B CN110450612B (en) | 2024-04-09 |
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Cited By (2)
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| CN114312266A (en) * | 2020-09-30 | 2022-04-12 | 比亚迪股份有限公司 | Coaxial integrated electric drive system, transmission and automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112193044A (en) * | 2020-09-30 | 2021-01-08 | 西门子电动汽车动力总成系统(上海)有限公司 | Electric drive assembly system and vehicle |
| CN114312266A (en) * | 2020-09-30 | 2022-04-12 | 比亚迪股份有限公司 | Coaxial integrated electric drive system, transmission and automobile |
| CN114312266B (en) * | 2020-09-30 | 2024-08-06 | 比亚迪股份有限公司 | Coaxial integrated electric drive system, transmission and automobile |
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| Publication number | Publication date |
|---|---|
| CN110450612B (en) | 2024-04-09 |
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