CN208469529U - Power drive assembly and electric car - Google Patents
Power drive assembly and electric car Download PDFInfo
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- CN208469529U CN208469529U CN201820382381.8U CN201820382381U CN208469529U CN 208469529 U CN208469529 U CN 208469529U CN 201820382381 U CN201820382381 U CN 201820382381U CN 208469529 U CN208469529 U CN 208469529U
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- motor
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- controller
- electric machine
- driving motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model relates to a kind of power drive assembly, driving motor has an output shaft axial direction, and 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 other end of the output shaft axial direction of driving motor；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 the rear end of driving motor, substitution harness connection can be connected by copper bar, effectively reduces power supply and the length of other harness.It is laid along driving motor circumferential direction motor cooling duct, and be connected to motor cooling duct with controller cooling duct, compared to the split type structure in existing design, while guaranteeing has preferable cooling effect, cooling circuit is optimized, cooling water pipe length is reduced.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
Axial direction, the retarder are fixedly connected on one end of the output shaft axial direction of the driving motor, the motor control
Device is fixedly connected on the other end of the output shaft axial 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 the rear end of driving motor, 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, compared to existing
Split type structure in design optimizes cooling circuit, reduces cooling water while guaranteeing has preferable cooling effect
Length of tube.In this way, good cooling results and having taken into account spaces compact, while reducing assembly cost.
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 laid with motor cooling bath along its circumferential direction,
The both ends of the inner casing are fixed and are sealedly attached in the inner cavity, so as to be formed between the motor cooling bath and the shell
The motor cooling duct.
In one embodiment, the electric machine casing further includes motor rear cover plate, and the shell, which also has, to be located at thereafter
End and opening in communication with the inner cavity, the retarder are fixedly connected on the front end of the shell, and the motor rear cover plate is solid
Surely it is connected to the opening that the shell is located at its rear end, the electric machine controller is fixedly connected on the motor rear cover plate.
In one embodiment, the position that motor rear cover plate outer surface corresponds to the electric machine controller is equipped with control
The motor rear cover plate is fixed and be hermetically connected to the controller housing of device cooling bath, the controller, so that the control
The controller cooling duct is formed between device cooling bath and controller housing；
The motor rear cover plate is also provided with for being connected to the motor cooling duct and the controller cooling duct
Connecting hole.
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 power drive assembly further includes copper bar, the driving motor and the motor control
Device processed is electrically connected by the copper bar.
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 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；Or
The cooling circuit further includes cooling entrance and coolant outlet, and the cooling entrance is set to controller housing, described
Coolant outlet is set to electric machine casing or controller housing, and is connected to motor cooling duct.
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.
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 Figure 1, the electric car in an embodiment of the present invention, including body structure, power battery, power drive
Dynamic assembly 100, transmission device, transfer and brake apparatus.Wherein, power battery is used to mention for power drive assembly 100
For electric energy, power drive assembly 100 is used to convert the electric energy of power battery to mechanical energy, and passes through transmission device or directly drive
Motor car wheel is to drive pure electric automobile to walk；Transfer for realizing pure electric automobile turning and be arranged, by turning machine, side
It is formed to disk, 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
The other end of shaft axial direction.Specifically, the electric machine casing of driving motor 10 passes through the retarder of locking member and retarder 20
Shell is fixedly connected, and the output shaft of driving motor 10 and the input shaft of speed changer are concentric affixed by an axle sleeve, power drive
Assembly 100 further includes copper bar, and driving motor 10 is electrically connected with electric machine controller 30 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 12 and the controller cooling duct for flowing through electric machine controller 30, motor cooling duct 12 is along driving motor 10
Circumferential direction is laid, and is connected to controller cooling duct, and cooling medium is during flowing through cooling circuit, to driving motor
10 and electric machine controller cooled down.
Specifically, which further includes cooling entrance and coolant outlet, and cooling entrance is set to electric machine casing, and with electricity
Machine cooling duct 12 is connected to, and coolant outlet is set to controller housing or electric machine casing, and is connected to controller cooling duct.In work
During work, cooling medium enters motor cooling duct 12 from the cooling entrance for being set to electric machine casing, carries out to driving motor 10
It after cooling, enters back into controller cooling duct and electric machine controller 30 is cooled down, and be finally discharged from coolant outlet.
It is understood that the position of cooling entrance and coolant outlet is not unique, such as in some other implementation
In mode, cooling entrance is set to controller housing, and coolant outlet is set to electric machine casing or controller housing, and cooling logical with motor
Road 12 is connected to, and enters cooling circuit by cooling entrance in short, being able to achieve cooling medium, to driving motor 10 and electric machine controller
After 30 carry out cooling, from the purpose of coolant outlet discharge.
It should be understood that electric machine controller 30 to be integrated in the rear end (one far from retarder 20 of driving motor 10
End), substitution harness connection can be connected by copper bar, effectively reduce power supply and the length of other harness.12 edge of motor cooling duct
10 circumferential direction of driving motor is laid, and motor cooling duct 12 is connected to controller cooling duct, compared in existing design
Split type structure, guarantee have preferable cooling effect while, optimize cooling circuit, reduce cooling water pipe range
Degree.Through actually detected, power supply harness and cooling water pipe reduce 10% or more, in this way, good cooling results and to have taken into account space tight
It gathers, 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..
It should be pointed out that electric machine controller 30 to be set to the rear end of driving motor 10, although increasing the axis of installation
To distance, but reduce radially installed space to a certain extent, is suitable for the lesser design of axial dimension installation requirement.
In one embodiment, the circumferential spiral cloth centered on the output shaft of driving motor 10 of motor cooling duct 12 is set to electricity
Casing body.In this way, cool down cooling medium can to driving motor completely, cooling effect is improved.
Further, electric machine casing includes shell and inner casing, and shell has an inner cavity, and inner casing has one to be used to accommodate stator
With the accommodating cavity of rotor.The outer surface of inner casing is equipped with motor cooling bath along its circumferential spiral cloth, and the both ends of inner casing are fixed and sealed
It is connected in inner cavity, so as to form motor cooling duct 12 above-mentioned between motor cooling bath and shell, cooling entrance is through outer
Shell is connected to motor cooling duct 12.
In this way, by directly designing the motor cooling bath that above-mentioned spiral along circumferential direction is laid in inner casing outer wall, one
Determine to promote heat dissipation effect in degree, and motor cooling duct 12 can be compatible with the noise reduction of power drive assembly 100, vibration damping, light
The design of quantization etc..
Further, electric machine casing further includes motor rear cover plate, and shell also has positioned at its rear end and is connected to inner cavity
Opening, retarder are fixedly connected on the front end of shell, and motor rear cover plate is fixedly connected on the opening that shell is located at its rear end, motor
Controller is fixedly connected on motor rear cover plate.Further, the position that motor rear cover plate outer surface corresponds to electric machine controller 30 is set
There is controller cooling bath, motor rear cover plate is fixed and be hermetically connected to the controller housing of controller, so that controller is cooling
Controller cooling duct above-mentioned is formed between slot and controller housing, motor rear cover plate offers cooling logical for being connected to motor
The connecting hole in road 12 and controller cooling duct.
Specifically, motor rear cover plate includes ontology and is shaped in the company that the ontology corresponds to the position of electric machine controller 30
Socket part, interconnecting piece are formed with controller cooling bath above-mentioned far from the side of shell, and controller housing is fixed and hermetically connected
In side of the interconnecting piece far from shell.
Specific in embodiment, connecting hole runs through the ontology and interconnecting piece of motor rear cover plate, cooling logical to be connected to motor
The liquid feeding end of the outlet end in road 12 and controller cooling duct, coolant outlet are opened in interconnecting piece, and with controller cooling duct
Outlet end connection.Certainly, in some other embodiment, coolant outlet can also be opened in controller housing, not make herein
It limits.
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；It is adjacent
Two sub- drainage troughs drainage it is contrary.Specifically, multiple sub- drainage troughs are parallel to each other and lay along preset direction interval,
The tail end of a upper sub- drainage trough is connected to the head end of next drainage trough, is formed one and is flowed road in the cooling medium of S shape rugosity
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 the rear end of driving motor 1, substitution harness connection can be connected by copper bar, effectively
Reduce power supply and the length of other harness.Motor cooling duct 12 is laid along 10 circumferential direction of driving motor, and motor is cooling
Channel 12 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 (8)
1. power drive assembly, which is characterized in that including driving motor, retarder and electric machine controller, the driving motor tool
There is an output shaft axial direction, the retarder is fixedly connected on one end of the output shaft axial direction of the driving motor, institute
State the other end that electric machine controller is fixedly connected on the output shaft axial direction of the driving motor；
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；
The motor cooling duct circumferential spiral cloth centered on the output shaft of the driving motor is set to electric machine casing；
The electric machine casing includes shell and inner casing, and the shell has an inner cavity, and the inner casing has one to be used to accommodate stator
With the accommodating cavity of rotor, the outer surface of the inner casing is laid with motor cooling bath along its circumferential direction, the both ends of the inner casing fix and
It is sealedly attached to the inner cavity, so as to form the motor cooling duct between the motor cooling bath and the shell.
2. power drive assembly according to claim 1, which is characterized in that the electric machine casing further includes motor rear cover
Plate, the shell also have positioned at its rear end and opening in communication with the inner cavity, and the retarder is fixedly connected on described outer
The front end of shell, the motor rear cover plate are fixedly connected on the opening that the shell is located at its rear end, and the electric machine controller is fixed
It is connected to the motor rear cover plate.
3. power drive assembly according to claim 2, which is characterized in that described in motor rear cover plate outer surface is corresponding
The position of electric machine controller is equipped with controller cooling bath, and the controller housing of the controller is fixed and is hermetically connected to described
Motor rear cover plate, so as to form the controller cooling duct between the controller cooling bath and controller housing；
The motor rear cover plate is also provided with the connection for being connected to the motor cooling duct Yu the controller cooling duct
Hole.
4. power drive assembly according to claim 3, 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.
5. power drive assembly according to any one of claims 1 to 4, 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.
6. power drive assembly according to any one of claims 1 to 4, which is characterized in that the motor of the driving motor
The reducing gearbox body by integral forming of shell and the retarder.
7. power drive assembly according to any one of claims 1 to 4, which is characterized in that the cooling circuit further includes
Cooling entrance and coolant outlet, the cooling entrance is set to electric machine casing, and is connected to the motor cooling duct, the cooling
Outlet is set to controller housing or electric machine casing, and is connected to the controller cooling duct；Or
The cooling circuit further includes cooling entrance and coolant outlet, and the cooling entrance is set to controller housing, the cooling
Outlet is set to electric machine casing or controller housing, and is connected to motor cooling duct.
8. electric car, which is characterized in that including power drive assembly as described in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820382381.8U CN208469529U (en) | 2018-03-20 | 2018-03-20 | Power drive assembly and electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820382381.8U CN208469529U (en) | 2018-03-20 | 2018-03-20 | Power drive assembly and electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208469529U true CN208469529U (en) | 2019-02-05 |
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ID=65207195
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820382381.8U Active CN208469529U (en) | 2018-03-20 | 2018-03-20 | Power drive assembly and electric car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208469529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113511064A (en) * | 2021-05-12 | 2021-10-19 | 株洲齿轮有限责任公司 | Three-in-one integrated design method of wheel edge driving assembly |
-
2018
- 2018-03-20 CN CN201820382381.8U patent/CN208469529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113511064A (en) * | 2021-05-12 | 2021-10-19 | 株洲齿轮有限责任公司 | Three-in-one integrated design method of wheel edge driving assembly |
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