CN208180749U - Power drive assembly and electric car - Google Patents
Power drive assembly and electric car Download PDFInfo
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- CN208180749U CN208180749U CN201820379898.1U CN201820379898U CN208180749U CN 208180749 U CN208180749 U CN 208180749U CN 201820379898 U CN201820379898 U CN 201820379898U CN 208180749 U CN208180749 U CN 208180749U
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Abstract
The utility model relates to a kind of power drive assembly, retarder is fixedly connected on one end of the output shaft axial direction of driving motor, and electric machine controller is fixedly connected on the surface of the circumferential direction of driving motor；Power drive assembly further includes cooling circuit, and cooling circuit includes the motor cooling duct for flowing through driving motor and the controller cooling duct for flowing through electric machine controller, and motor cooling duct is laid along the circumferential direction of driving motor, and is connected to controller cooling duct.Electric machine controller is integrated in driving motor circumferential direction, and substitution harness connection can be connected by copper bar, effectively reduces power supply and the length of other harness.Motor cooling duct is laid along driving motor circumferential direction, is optimized cooling circuit while guaranteeing has preferable cooling effect compared to the split type structure in existing design, is reduced cooling water pipe length.In this way, good cooling results and having taken into account spaces compact, while reducing assembly cost.A kind of electric car is also provided.
Description
Technical field
The utility model relates to technical field of vehicle, more particularly to a kind of power drive assembly and electric car.
Background technique
Increasingly sharpening for energy crisis is increasing with car ownership, so that conventional fuel oil automobile is faced a severe challenge, opens
The pure electric automobile that hair noise is low, energy consumption is small, is not influenced again by fuel crunch becomes common recognition.Pure electric automobile is with vehicle power supply
For power, with the vehicle of electric drive wheels travel.Pure electric automobile is compared with fuel-engined vehicle, without many systems in engine
System, drive system structure is simpler, and following trend certainly will be become by driving pure electric automobile trip.
Currently, traditional motor, electric machine controller and deceleration mechanism are generally provided separately, and corresponding different supply factory
Quotient, main engine plants fit together three's matching.Wherein, the arbor of motor and the input shaft of deceleration mechanism are coaxial, determine substantially
The positional relationship of motor and deceleration mechanism, but the position of electric machine controller is free.In practical applications, electric machine controller
Put the length for directly affecting coolant flow channel and route, to influence the cooling effect of motor and the cost of assembly.And new energy
The structural change of source automobile is larger, mechanical mechanism require it is more compact, with for components such as battery packs planning and arrangement sky is provided
Between.And the arragement construction of motor, electric machine controller and deceleration mechanism in existing design can not simultaneous above-mentioned requirements.
Utility model content
Based on this, it is necessary to can not for the arragement construction of motor, electric machine controller and deceleration mechanism in existing design
The problem of taking into account reasonable installation space, good cooling effect and preferable cost provides a kind of good cooling results and takes into account
Spaces compact, the power drive assembly and electric car for reducing assembly cost.
Power drive assembly, including driving motor, retarder and electric machine controller, the driving motor have an output shaft
The circumferential direction of axial direction and the relatively described output shaft axial direction, the retarder are fixedly connected on the driving motor
One end of output shaft axial direction, the electric machine controller are fixedly connected on the surface of the circumferential direction of the driving motor；
The power drive assembly further includes cooling circuit, and the cooling circuit includes the motor for flowing through the driving motor
Cooling duct and the controller cooling duct for flowing through the electric machine controller, the motor cooling duct is along the driving motor
Circumferential direction is laid, and is connected to the controller cooling duct.
Above-mentioned power drive assembly, driving motor, gearbox and retarder integrate setting, electric machine controller are integrated
In in driving motor circumferential direction, substitution harness connection can be connected by copper bar, effectively reduces power supply and the length of other harness.
Motor cooling duct is laid along driving motor circumferential direction, and motor cooling duct is connected to controller cooling duct, is compared
Split type structure in existing design optimizes cooling circuit, reduces cold while guaranteeing has preferable cooling effect
But length of pipe.In this way, good cooling results and having taken into account spaces compact, while reducing assembly cost.
In one embodiment, the cooling circuit further includes cooling entrance and coolant outlet, and the cooling entrance is set
Be connected in electric machine casing, and with the motor cooling duct, the coolant outlet be set to controller housing or electric machine casing, and with
The controller cooling duct connection.
In one embodiment, the cooling circuit further includes cooling entrance and coolant outlet, and the cooling entrance is set
In controller housing, the coolant outlet is set to electric machine casing or controller housing, and is connected to motor cooling duct.
In one embodiment, the motor cooling duct circumferential spiral centered on the output shaft of the driving motor
It is laid in electric machine casing.
In one embodiment, the electric machine casing includes shell and inner casing, and the shell has an inner cavity, described interior
Shell has one for accommodating the accommodating cavity of stator and rotor, and the outer surface of the inner casing is cooling equipped with motor along its circumferential spiral cloth
The inner cavity is fixed and is sealedly attached at the both ends of slot, the inner casing, so that shape between the motor cooling bath and the shell
At the motor cooling duct.
In one embodiment, the outer surface of outer cover corresponds to the position of the electric machine controller equipped with controller cooling
The shell of the electric machine casing is fixed and be hermetically connected to the controller housing of slot, the controller, so that the controller
The controller cooling duct is formed between cooling bath and controller housing；
The shell is also provided with the connecting hole for being connected to the motor cooling duct and the controller cooling duct.
In one embodiment, the controller cooling bath includes that multiple sons for being interconnected and being spaced apart from each other setting draw
Chute；
The drainage of the sub- drainage trough of adjacent two is contrary.
In one embodiment, the reducer shell one of the electric machine casing of the driving motor and the retarder at
Type.
In one embodiment, the power drive assembly further includes copper bar, the driving motor and the motor control
Device processed is electrically connected by the copper bar.
Electric car, including such as above-mentioned power drive assembly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the power drive assembly in one embodiment of the utility model；
Fig. 2 is the structural schematic diagram at another visual angle of power drive assembly shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the electric machine casing of power drive assembly shown in FIG. 1.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to the utility model
The understanding of disclosure is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
As shown in Figures 1 and 2, the electric car in an embodiment of the present invention, including body structure, power battery,
Power drive assembly 100, transmission device, transfer and brake apparatus.Wherein, power battery is used to be power drive assembly
100 provide electric energy, and power drive assembly 100 is used to convert mechanical energy for the electric energy of power battery, and by transmission device or
Direct drive of wheel is to drive pure electric automobile to walk；Transfer for realizing pure electric automobile turning and be arranged, by turn
It is formed to machine, steering wheel, steering mechanism and deflecting roller etc..
Power drive assembly 100 includes driving motor 10, retarder 20 and electric machine controller 30.Driving motor 10 has one
The circumferential direction of output shaft axial direction and opposite output shaft axial direction, retarder 20 are fixedly connected on the defeated of driving motor 10
One end of shaft axial direction, electric machine controller 30 are fixedly connected on the surface of the circumferential direction of driving motor 10.Specifically, it drives
The electric machine casing of dynamic motor 10 is fixedly connected by locking member with the reducer shell of retarder 20, the output shaft of driving motor 10
Concentric affixed by an axle sleeve with the input shaft of speed changer, power drive assembly 100 further includes copper bar, driving motor 10 and electricity
Machine controller 30 is electrically connected by copper bar.
Specific in embodiment, locking member is that clamping screw, electric machine casing and reducer shell are solid by clamping screw
Fixed connection.It is appreciated that in other embodiment, the electric machine casing of the driving motor 10 and the retarder of retarder 20
Shell can be also integrally formed, and be not limited thereto.
The power drive assembly 100 further includes cooling circuit (not shown), and cooling circuit includes flowing through driving motor 10
Motor cooling duct and the controller cooling duct for flowing through electric machine controller 30, circumferential direction of the motor cooling duct along driving motor 10
Direction is laid, and is connected to controller cooling duct, cooling medium during flowing through cooling circuit, to driving motor 10 and
Electric machine controller is cooled down.
Specifically, referring to Fig. 3, the cooling circuit further includes cooling entrance 12 and coolant outlet 14, cooling entrance 12 is set
It is connected in electric machine casing, and with motor cooling duct, coolant outlet 14 is set to controller housing or electric machine casing, and and controller
Cooling duct connection.During the work time, cooling medium enters motor cooling duct from the cooling entrance 12 for being set to electric machine casing,
After being cooled down to driving motor 10, enters back into controller cooling duct and electric machine controller 30 is cooled down, and finally from cold
But 14 discharge of outlet.
It is understood that the position of cooling entrance 12 and coolant outlet 14 is not unique, such as some other
In embodiment, cooling entrance 12 is set to controller housing, and coolant outlet 14 is set to electric machine casing or controller housing, and with electricity
The connection of machine cooling duct enters cooling circuit in short, being able to achieve cooling medium and passing through cooling entrance 12, to driving motor 10 and electricity
After machine controller 30 carries out cooling, from the purpose of the discharge of coolant outlet 14.
It should be understood that electric machine controller 30 is integrated in 10 circumferential direction of driving motor, can be connected by copper bar
Harness connection is substituted, power supply and the length of other harness are effectively reduced.Motor cooling duct is along 10 circumferential direction cloth of driving motor
And if motor cooling duct is connected to controller cooling duct, compared to the split type structure in existing design, guaranteeing have
While preferable cooling effect, cooling circuit is optimized, reduces cooling water pipe length.Through actually detected, power supply harness and
Cooling water pipe reduces 10% or more, in this way, good cooling results and having taken into account spaces compact, while reducing assembly cost.
It is to be further understood that cooling circuit by be divided into two cooled regions realize simultaneously to driving motor 10 and
Electric machine controller 30 carries out cooling control, promotes heat dissipation effect to a certain extent, and cooling circuit can be compatible with integration
The design of the noise reduction of power drive assembly 100, vibration damping, lightweight etc..
In one embodiment, motor cooling duct circumferential spiral cloth centered on the output shaft of driving motor 10 is set to motor
Shell.Specifically, electric machine casing includes shell 162 and inner casing 164, and shell 162 has an inner cavity, and inner casing 164 has one to be used for
Accommodate the accommodating cavity of stator and rotor.The outer surface of inner casing 164 is equipped with motor cooling bath 166, inner casing 164 along its circumferential spiral cloth
Both ends fix and be sealedly attached to inner cavity so that it is cooling logical to form motor above-mentioned between motor cooling bath 166 and shell 162
Road, cooling entrance 12 are connected to through shell 162 with motor cooling duct.
In this way, by directly designing the motor cooling bath that above-mentioned spiral along circumferential direction is laid in 164 outer wall of inner casing
166, heat dissipation effect is promoted to a certain extent, and motor cooling duct can be compatible with the noise reduction of power drive assembly 100, subtract
The design of vibration, lightweight etc..
Further, the position that 162 outer surface of shell corresponds to electric machine controller 30 is equipped with controller cooling bath 168, control
The shell 162 of electric machine casing is fixed and be hermetically connected to the controller housing of device, so that controller cooling bath 168 and controller
Controller cooling duct above-mentioned is formed between shell, shell 162 is also provided with connection motor cooling duct and controller is cooling
The connecting hole 169 in channel.Specifically, shell 162 including ontology and is shaped in the position that the ontology corresponds to electric machine controller 30
The interconnecting piece 161 set, interconnecting piece 161 are formed with controller cooling bath 168 above-mentioned, controller shell far from the side of shell 162
Body is fixed and is hermetically connected to side of the interconnecting piece 161 far from shell 162.
Specific in embodiment, connecting hole 169 is through shell 162 and interconnecting piece 161, to be connected to the cooling liquid out of motor
The liquid feeding end at end and controller cooling duct, coolant outlet 14 are opened in interconnecting piece 161, and the liquid out with controller cooling duct
End connection.Certainly, in some other embodiment, coolant outlet 14 can also be opened in controller housing, be not limited thereto.
In this way, cooling bath not only acts as the cooling effect to electric machine controller 30, while can play separated magnetic effect again, make
Controller circuitry is not by the interference of motor electromagnetic.
Further, which includes multiple sub- drainage troughs being interconnected and be spaced apart from each other setting；Phase
The drainage of two adjacent sub- drainage troughs is contrary.Specifically, multiple sub- drainage troughs are parallel to each other and along preset direction interval cloth
If the tail end of a upper sub- drainage trough is connected to the head end of next drainage trough, the cooling medium for forming a S-shaped rugosity flows road
Diameter.In this way, further increase the cooling effect of electric machine controller 30, the safety of electric machine controller 30 and reliable is improved
Property.
Power drive assembly 100 and electric car in the application, 20 one of driving motor 10, gearbox and retarder
It is integrally disposed, electric machine controller 30 is integrated in 10 circumferential direction of driving motor, substitution harness connection can be connected by copper bar,
Effectively reduce power supply and the length of other harness.Motor cooling duct is laid along 10 circumferential direction of driving motor, and motor is cold
But channel is connected to controller cooling duct, compared to the split type structure in existing design, is guaranteeing there is preferably cooling effect
While fruit, cooling circuit is optimized, reduces cooling water pipe length.Through actually detected, power supply harness and cooling water pipe are reduced
10% or more, in this way, good cooling results and having taken into account spaces compact, while reducing assembly cost.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. power drive assembly, which is characterized in that including driving motor, retarder and electric machine controller, the driving motor tool
There is the circumferential direction of an output shaft axial direction and the relatively described output shaft axial direction, the retarder is fixedly connected on described
One end of the output shaft axial direction of driving motor, the electric machine controller are fixedly connected on the circumferential direction of the driving motor
Surface；
The power drive assembly further includes cooling circuit, and the cooling circuit includes the motor cooling for flowing through the driving motor
Channel and the controller cooling duct for flowing through the electric machine controller, circumferential direction of the motor cooling duct along the driving motor
Direction is laid, and is connected to the controller cooling duct.
2. power drive assembly according to claim 1, which is characterized in that the cooling circuit further include cooling entrance and
Coolant outlet, the cooling entrance is set to electric machine casing, and is connected to the motor cooling duct, and the coolant outlet is set to control
Device shell or electric machine casing processed, and be connected to the controller cooling duct.
3. power drive assembly according to claim 1, which is characterized in that the cooling circuit further include cooling entrance and
Coolant outlet, the cooling entrance be set to controller housing, the coolant outlet be set to electric machine casing or controller housing, and with
The connection of motor cooling duct.
4. described in any item power drive assemblies according to claim 1~3, which is characterized in that the motor cooling duct with
Circumferential spiral cloth is set to electric machine casing centered on the output shaft of the driving motor.
5. power drive assembly according to claim 4, which is characterized in that the electric machine casing includes shell and inner casing,
The shell has an inner cavity, and the inner casing has an accommodating cavity for being used to accommodate stator and rotor, the outer surface of the inner casing
It is equipped with motor cooling bath along its circumferential spiral cloth, the inner cavity is fixed and is sealedly attached at the both ends of the inner casing, so that described
The motor cooling duct is formed between motor cooling bath and the shell.
6. power drive assembly according to claim 5, which is characterized in that the outer surface of outer cover corresponds to the motor control
The position of device processed is equipped with controller cooling bath, and the controller housing of the controller is fixed and is hermetically connected to the motor casing
The shell of body, so as to form the controller cooling duct between the controller cooling bath and controller housing；
The shell is also provided with the connecting hole for being connected to the motor cooling duct and the controller cooling duct.
7. power drive assembly according to claim 6, which is characterized in that the controller cooling bath includes multiple mutual
It is connected to and is spaced apart from each other the sub- drainage trough of setting；
The drainage of the sub- drainage trough of adjacent two is contrary.
8. described in any item power drive assemblies according to claim 1~3, which is characterized in that the motor of the driving motor
The reducing gearbox body by integral forming of shell and the retarder.
9. described in any item power drive assemblies according to claim 1~3, which is characterized in that the power drive assembly is also
Including copper bar, the driving motor is electrically connected with the electric machine controller by the copper bar.
10. electric car, which is characterized in that including power drive assembly as described in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820379898.1U CN208180749U (en) | 2018-03-20 | 2018-03-20 | Power drive assembly and electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820379898.1U CN208180749U (en) | 2018-03-20 | 2018-03-20 | Power drive assembly and electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208180749U true CN208180749U (en) | 2018-12-04 |
Family
ID=64438506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820379898.1U Active CN208180749U (en) | 2018-03-20 | 2018-03-20 | Power drive assembly and electric car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208180749U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504798A (en) * | 2019-07-30 | 2019-11-26 | 万向钱潮股份有限公司 | A kind of connection structure of motor and controller |
| WO2020140585A1 (en) * | 2018-12-31 | 2020-07-09 | 卧龙电气集团股份有限公司 | Novel liquid-cooling permanent magnet motor having controller cooling function |
| CN112389190A (en) * | 2019-08-19 | 2021-02-23 | 比亚迪股份有限公司 | Integrated bridge assembly and vehicle |
| CN114337063A (en) * | 2021-12-31 | 2022-04-12 | 中国第一汽车股份有限公司 | Electric drive system and automobile |
| CN114583893A (en) * | 2020-11-30 | 2022-06-03 | 比亚迪股份有限公司 | Wheel edge drive assembly and shell thereof |
-
2018
- 2018-03-20 CN CN201820379898.1U patent/CN208180749U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140585A1 (en) * | 2018-12-31 | 2020-07-09 | 卧龙电气集团股份有限公司 | Novel liquid-cooling permanent magnet motor having controller cooling function |
| CN110504798A (en) * | 2019-07-30 | 2019-11-26 | 万向钱潮股份有限公司 | A kind of connection structure of motor and controller |
| CN112389190A (en) * | 2019-08-19 | 2021-02-23 | 比亚迪股份有限公司 | Integrated bridge assembly and vehicle |
| CN114583893A (en) * | 2020-11-30 | 2022-06-03 | 比亚迪股份有限公司 | Wheel edge drive assembly and shell thereof |
| CN114583893B (en) * | 2020-11-30 | 2023-08-08 | 比亚迪股份有限公司 | Shell of wheel edge driving assembly and wheel edge driving assembly |
| CN114337063A (en) * | 2021-12-31 | 2022-04-12 | 中国第一汽车股份有限公司 | Electric drive system and automobile |
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