CN201721328U - Power transmission device and electric automobile having the same - Google Patents
Power transmission device and electric automobile having the same Download PDFInfo
- Publication number
- CN201721328U CN201721328U CN2010201664115U CN201020166411U CN201721328U CN 201721328 U CN201721328 U CN 201721328U CN 2010201664115 U CN2010201664115 U CN 2010201664115U CN 201020166411 U CN201020166411 U CN 201020166411U CN 201721328 U CN201721328 U CN 201721328U
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- China
- Prior art keywords
- motor
- speed reduction
- reduction gearing
- electrical motor
- power transmission
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- Expired - Fee Related
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Abstract
The utility model discloses a power transmission device and an electric automobile having the same. The power transmission device comprises a first motor and a second motor, wherein the first motor comprises a hollow rotor shaft; and the second motor comprises a rotor shaft which can pass through and extend out of the hollow rotor shaft of the first motor. The rotor shafts are embedded with each other and not interfered with each other, and first and second power transmission chains are not in direct mechanical connection with each other and can move independently, so that an independent driving device has a compact structure. The electric automobile comprises the power transmission device, wherein a transmission shaft is connected with the output ends of a first reducing mechanism and a second reducing mechanism respectively; and wheels are connected with the transmission shaft respectively. The power transmission device has compactness, and when the power transmission device is arranged on the automobile, non-suspension mass is small and the grounding force of the automobile is enhanced, so that the safety of the automobile is further improved. On the basis, if the power transmission device is used for driving a steering wheel, the steering of the automobile is more flexible and convenient because the power transmission device does not need to be arranged beside a wheel.
Description
Technical field
The utility model relates to a kind of electronlmobil that can realize the power drive of wheel individual drive and have this device.
Background technology
In recent years, carried electrical motor and obtained practicality gradually as accumulator car without environment pollution such as the pure electric automobile of propulsion source, hybrid vehicles.Compare with combustion engine, electrical motor has advantages such as response accuracy height, speed of response are fast, volume compact, flexible arrangement, can satisfy the requirement of vehicle power, economy and dynamics better.
Wherein, adopt the electrical motor that is arranged in wheel limit or the wheel can form the electronlmobil of two-wheeled or four-wheel individual drive.This type of vehicle can carry out accurate fast control to the driving torque of each wheel, therefore has good dynamics.
But, prior art is for realizing the wheel individual drive, electrical motor is installed in wheel limit or the wheel more, make that the drive configuration of automobile is not compact, and electrical motor has bigger quality, increased non-suspended mass, reduced the ground connection power of wheel, caused adverse influence for the safety of vehicle.If wheel flutter has been installed this type of electrical motor, then be unfavorable for very much turning to of vehicle, also will form adverse effect to the performance of vehicle.
The utility model content
Provide a kind of compact power drive that can realize the wheel individual drive for addressing the above problem the purpose of this utility model that proposes; The purpose of this utility model also be to provide a kind of have a said apparatus have individual drive performance, alerting ability height, a safe electronlmobil.
The purpose of this utility model is achieved in that
Power drive comprises:
First electrical motor, second electrical motor, first speed reduction gearing and second speed reduction gearing, wherein first electrical motor comprises the rotor shaft of a hollow, and this rotor shaft is connected with first speed reduction gearing and forms first power chain; Second electrical motor comprises one can pass and extend the rotor shaft of the hollow rotor shaft of first electrical motor, and this rotor shaft is connected with second speed reduction gearing and forms second power chain.
As the preferred version of above-mentioned power drive, the gear in first speed reduction gearing and second speed reduction gearing is a bevel-gear sett.
Described first speed reduction gearing and second speed reduction gearing can also be worm-and-wheel gear.
First electrical motor or second electrical motor can be DC motor, alternating-current motor/AC motor, induction motor (IM), permanent magnet motor or switched reluctance motor.
As preferred version of the present utility model, between the rotor shaft of first electrical motor and second electrical motor bearing is arranged.
Electronlmobil comprises:
Vehicle body, transmission shaft, wheel and above-mentioned power drive, wherein transmission shaft is connected with the second speed reduction gearing mouth with first speed reduction gearing respectively, and wheel is connected with transmission shaft respectively.
As preferred version of the present utility model, first electrical motor of above-mentioned power drive, second electrical motor, first speed reduction gearing and second speed reduction gearing are installed in automobile auto body longitudinal central axis line position.
The beneficial effects of the utility model are:
Because the rotor shaft of two engine installations in this power drive is nested but mutually noninterfere, first and second power chains do not have direct mechanical connection, can self-movement, therefore, compared with prior art, this power drive is an integral body from structure, but independently propulsion source is arranged, realize the individual drive of wheel, ingenious, the compact conformation of this individual drive device design.
The power drive of this compact is installed on the automobile, compares with the electrical motor in being installed in wheel limit or wheel, and its non-suspended mass is little, has improved the ground connection power of automobile, and then the safety that has improved automobile.
On this basis, if this power drive is driven wheel flutter, owing to need not to be installed in the wheel limit, therefore make motor turning more flexible, lighter, also reduce the wearing and tearing between parts simultaneously, improved the service life of related components, the safety that has further improved automobile.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the scheme drawing of the utility model power drive;
Fig. 2 is the scheme drawing of the electronlmobil of the utility model embodiment;
Fig. 3-Fig. 6 is four kinds of working state schematic representations that the utility model power drive drives battery-driven car.
Numbering and component names are as follows among the figure:
1---first electrical motor; 2---second electrical motor; 3---first speed reduction gearing; 4---second speed reduction gearing; 5A, 5B---transmission shaft; 6A, 6B---wheel; 7---electronlmobil; 10---the rotor shaft of first electrical motor; 20---the rotor shaft of second electrical motor.
The specific embodiment
As shown in Figure 1, power drive comprises: first electrical motor 1, and it comprises the rotor shaft 10 of a hollow; Second electrical motor 2, it comprises a rotor shaft 20 that can pass and extend the rotor shaft 10 of first electrical motor 1; First speed reduction gearing 3, it comprises bevel-gear sett; Second speed reduction gearing 4, it comprises bevel-gear sett.First speed reduction gearing 3 is connected with wheel 6A, 6B by transmission shaft 5A, 5B with second speed reduction gearing 4.
First electrical motor 1 forms first power chain by being connected with first speed reduction gearing 3; Second electrical motor 2 forms second power chain by being connected with second speed reduction gearing 4.Because first and second power chains do not have direct mechanical connection, therefore, this power drive can provide two independently propulsions source, realizes the individual drive of wheel.For independent rotation between the rotor shaft that makes first electrical motor and second electrical motor is smooth and easy, and guarantee concentricity, between the rotor shaft 10 of first electrical motor and second electrical motor and rotor shaft 20, be provided with bearing.
As shown in Figure 2, the electronlmobil with this device is a RE/RD (RR) electronlmobil 7.This device is realized the individual drive of trailing wheel by the trailing wheel of powered vehicle.This device is arranged on the vehicle body, rather than in wheel limit or the wheel, therefore can not increase non-suspended mass, causes the decline of wheel ground connection property, and vehicle safety is produced adverse influence.
The utility model is not limited to the foregoing description, but the institute that covers under the situation that does not break away from spirit and scope of the present utility model to be carried out changes and revises.
Above-mentioned diagrammatic sketch and embodiment explanation is that the electronlmobil at rearmounted rear-guard (RR) carries out, and this device also can be applied to the electronlmobil that preposition forerunner (FF), preposition rear-guard (FR) and four wheel drive (4WD) wait other drive form.
In addition, when aforesaid power drive is used to drive the wheel flutter of electronlmobil,, can realize that electronlmobil turns to light, safe purpose because power drive is not installed in the wheel limit.
In addition, in the above-described embodiments, electrical motor can be DC motor, alternating-current motor/AC motor, induction motor (IM), permanent magnet motor or switched reluctance motor.
In the above-described embodiments, employing can realize that the finishing bevel gear cuter of required transmitting ratio and change transmission of power direction is as speed reduction gearing.But the utility model is not limited thereto, and also can adopt worm-and-wheel gear, perhaps can realize required transmitting ratio and other mechanism that changes the transmission of power direction.
The utility model obviously can change it in many ways.These changes should not be considered to break away from spirit and scope of the present utility model, and all should be included in the protection domain of the present utility model such as the modification that it will be apparent to those skilled in the art that.
For further clear and definite advantage of the present utility model, below the control and the mode of motion of power drive of the present utility model and electronlmobil are set forth:
As Fig. 3-shown in Figure 6, this device can be by the hand of rotation at control motor, realizes advancing, retreat or the different rotary direction of both sides wheel of vehicle.Among Fig. 3, the hand of rotation of electrical motor is identical, is clockwise direction, and vehicle to overtake.Among Fig. 4, the hand of rotation of electrical motor is identical, is anticlockwise direction, vehicle travel backwards.Among Fig. 5, the hand of rotation difference of electrical motor, first electrical motor is a clockwise direction, second electrical motor is an anticlockwise direction, forms a C.C.W. yaw torque on vehicle.Among Fig. 6, the hand of rotation difference of electrical motor, first electrical motor is an anticlockwise direction, second electrical motor is a clockwise direction, forms a clws yaw torque on vehicle.
Claims (7)
1. power drive is characterized in that this device comprises:
First electrical motor (1), second electrical motor (2), first speed reduction gearing (3) and second speed reduction gearing (4), wherein first electrical motor (1) comprises the rotor shaft (10) of a hollow, and this rotor shaft (10) is connected with first speed reduction gearing (3) and forms first power chain; Second electrical motor (2) comprises a rotor shaft (20) that can pass and extend the rotor shaft (10) of first electrical motor, and this rotor shaft (20) is connected with second speed reduction gearing (4) and forms second power chain.
2. power drive as claimed in claim 1 is characterized in that described first speed reduction gearing (3), second speed reduction gearing have finishing bevel gear cuter in (4).
3. power drive as claimed in claim 1 is characterized in that described first speed reduction gearing (3), second speed reduction gearing (4) are worm-and-wheel gear.
4. power drive as claimed in claim 1 is characterized in that between rotor shaft (10) and rotor shaft (20) bearing being arranged.
5. power drive as claimed in claim 1 is characterized in that: first electrical motor (1) or second electrical motor (2) can be DC motor, alternating-current motor/AC motor, induction motor (IM), permanent magnet motor or switched reluctance motor.
6. electronlmobil, comprise vehicle body, transmission shaft and wheel, it is characterized in that: this electronlmobil also comprises the described power drive of claim 1-5, wherein transmission shaft (5A, 5B) is connected with second speed reduction gearing (4) mouth with first speed reduction gearing (3) respectively, and wheel (6A, 6B) is connected with transmission shaft (5A, 5B) respectively.
7. electronlmobil as claimed in claim 6 is characterized in that first electrical motor (1), second electrical motor (2), first speed reduction gearing (3) and second speed reduction gearing (4) are installed in auto body longitudinal central axis line position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201664115U CN201721328U (en) | 2010-04-02 | 2010-04-02 | Power transmission device and electric automobile having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201664115U CN201721328U (en) | 2010-04-02 | 2010-04-02 | Power transmission device and electric automobile having the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201721328U true CN201721328U (en) | 2011-01-26 |
Family
ID=43489625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201664115U Expired - Fee Related CN201721328U (en) | 2010-04-02 | 2010-04-02 | Power transmission device and electric automobile having the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201721328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875306A (en) * | 2010-04-02 | 2010-11-03 | 唐红兵 | Power transmission device and electric vehicle with same |
-
2010
- 2010-04-02 CN CN2010201664115U patent/CN201721328U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875306A (en) * | 2010-04-02 | 2010-11-03 | 唐红兵 | Power transmission device and electric vehicle with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20140402 |