CN201360212Y

CN201360212Y - Vehicle wheel electrical machine, vehicle wheel electric power driving system and environmental protection automobile

Info

Publication number: CN201360212Y
Application number: CNU2008201809189U
Authority: CN
Inventors: 吴尤利
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-09
Filing date: 2008-12-09
Publication date: 2009-12-09
Anticipated expiration: 2018-12-09

Abstract

The utility model discloses a vehicle wheel electrical machine, which comprises a wheel hub and a wheel felloe, wherein the radial outside surface of the wheel hub and the radial internal surface of the wheel felloe are respectively provided with a winding and a permanent magnet which are matched with each other so that an electrical machine structure on the wheel hub and the wheel felloe is formed; and the wheel hub is provided with a cooling water passage. The utility model also discloses a vehicle wheel electric power driving system which applies the vehicle wheel electrical machine, and an environmental protection automobile which applies the vehicle wheel electric power driving system. The vehicle wheel electrical machine not only can supply the electrical energy for the automobile in the running process of the automobile so as to reduce the consumption of the automobile on the external energy, but also can be conveniently converted into a power-operated engine for providing advancing power or braking power so as to improve the manipulation performance on the automobile, and simultaneously is characterized by simple and compact structure. The environmental protection automobile eliminates the effect of the vehicle wheel jolt on the tensioning state of a driving belt and ensures the operating stability of a transmission mechanism by causing an output shaft of an electric engine to be concentric with a supporting shaft of a supporting oscillating arm of a vehicle wheel.

Description

Wheel motor, wheel electric drive system and environment-friendly automobile

Technical Field

The utility model relates to a wheel motor and include this wheel motor's wheel electric drive system, still relate to the environmental protection car that uses above-mentioned wheel electric drive system simultaneously.

Background

In the present society, people face two problems to be solved urgently, one is an energy problem and the other is an environmental protection problem, and the two problems are concentrated on a vehicle, namely an automobile, which is part of the daily life of people, so that how to utilize renewable clean energy on the automobile as much as possible, reduce energy consumption, reduce or even eliminate pollution to the environment becomes a target pursued by people.

Disclosure of Invention

To the demand that exists in the reality, the utility model discloses a first order aim at provides a wheel motor, and this wheel motor is under the condition of using as the generator, can supply the electric energy to car electric drive system constantly at the car driving in-process to reduce the consumption of car to the external energy.

The utility model discloses further aim at provides a wheel electric drive system who includes above-mentioned wheel motor.

The utility model discloses still further provide an use the environmental protection car that has above-mentioned wheel electric drive system.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a wheel motor comprises a hub and a rim, wherein the rim is provided with a fortune plate connected with a wheel shaft, and the rim is sleeved on the hub from the axial outer side of the hub; the winding is arranged on the radial outer surface of the hub along the circumferential direction of the hub, the permanent magnets are arranged on the radial inner surface of the rim along the circumferential direction of the rim, and the winding is matched with the permanent magnets, so that an outer ring motor structure on the hub and the rim is formed; the hub is provided with a cooling water channel, and the hub and the winding on the hub are cooled through the cooling water channel.

Further, the hub at least comprises two layers of cylindrical ring plates which are sleeved from inside to outside and are concentric with each other in the radial direction, wherein the outer ring motor structure is positioned between the outermost ring plate in the radial direction of the hub and the rim, and two adjacent ring plates are radially separated from each other and form an annular deep groove with an opening facing the outside of the hub in the axial direction; the hub is characterized in that the hub is corresponding to a multi-layer ring plate structure on the hub, sleeves which are concentric with the hub and respectively correspond to ring plates in the radial middle of the hub one to one are arranged on a radial plate of the hub, the sleeves are suspended into annular deep grooves between every two adjacent ring plates in the radial middle of the hub one by one when the hub is sleeved on the hub, permanent magnets which are arranged along the circumferential direction of the sleeves are arranged on the radial inner surface of each sleeve, windings which are arranged along the circumferential direction of the sleeves are arranged on the radial outer surface of each ring plate in the middle of the hub, the permanent magnets on each sleeve are matched with the windings on the adjacent ring plates in the radial inner side of each sleeve, and therefore, the individual.

Furthermore, the hub radially comprises two layers of cylindrical ring plates corresponding to the two layers of cylindrical ring plates, a sleeve is arranged on the ring plate of the rim, and an outer ring motor structure and an inner ring motor structure are arranged on the hub and the rim.

Furthermore, the cooling water channel is an annular groove which is arranged on the hub and is concentric with the hub, and a cooling water pipeline is arranged in the annular groove.

Furthermore, the cooling water channel is a closed annular channel which is arranged in the hub and is concentric with the hub, and water inlets and water outlets which are communicated with the closed annular channel are arranged on the side wall of the hub at intervals.

Further, the annular groove is formed in the radially outermost side annular plate of the hub, and an opening of the annular groove faces the axially outer side of the hub.

The wheel electric driving system applying the wheel motor comprises a computer control device, a rectifier, a storage battery, the wheel motor and an electric engine, wherein the computer control device controls the storage battery to supply power for the electric engine to drive the wheel to rotate; the wheel motor is switched between the generator and the motor under the control of the computer control device, and when the wheel motor is used as the engine to output torque outwards, the direction of the torque outwards output is controlled by the computer control device; when the wheel motor is used as a generator, the wheel motor outputs electric energy outwards along with the rotation of the wheel and charges a storage battery through a rectifier under the control of the computer control device; when the wheel motor is used as a motor and outputs torque in the same direction as the electric engine outwards, the wheel motor receives electric energy provided by the storage battery under the control of the computer control device and drives wheels to rotate together with the electric engine; when the wheel motor is used as a motor and outputs torque in the direction opposite to that of the electric motor, the wheel motor is used as the motor and receives electric energy provided by the storage battery under the control of the computer control device, and the wheel motor outputs torque opposite to that of the electric motor to provide braking force for wheels.

Further, when the wheel motor is used as a motor and outputs a torque in the same direction as the electric engine, the computer control device controls the electric energy input to each wheel motor to have different rotating speeds of each wheel, so as to adapt to the curve motion operation of the vehicle.

The environment-friendly automobile with the wheel electric driving system comprises an automobile body, wheels and an electric engine, wherein the wheels are provided with the wheel motors, the wheels directly connected with the electric engine through power are arranged on the automobile body through swing arms, the wheels are connected with one ends of the swing arms, the other ends of the swing arms are rotatably arranged on supporting shafts arranged on the automobile body, output shafts of the electric engines arranged on the automobile body are connected with driving shafts of the wheels at one ends of the swing arms through belt transmission mechanisms, output shafts of the electric engines are concentric with the supporting shafts of the swing arms, and cooling water circulation devices connected with cooling water channels on the wheel motors are further arranged on the automobile body.

Furthermore, a transmission belt in the belt transmission mechanism is a synchronous belt, and the belt transmission mechanism is also provided with a tension pulley which is arranged on a support shaft arranged on the swing arm.

The utility model discloses wheel motor not only can supply the electric energy for the car at the car driving in-process, reduces the consumption of car to the external energy, can conveniently convert into electric engine moreover and provide the power or provide the brake force that advances for the car provides, improves the performance of controlling of car, still has simple structure, compact characteristics simultaneously.

The utility model provides a wheel electric drive system further improves the utilization ratio of clean energy on the automobile, reduces the consumption of the automobile to external energy and improves the environmental protection performance of the automobile by acquiring energy from the rotating wheels and supplementing the energy to the automobile electric engine; especially will the utility model discloses a wheel motor uses the back as electric engine, through the direction that changes its output torque and control its output rotational speed, has improved the performance of controlling of car greatly.

The utility model provides an environmental protection car makes electric engine and wheel power link to each other through adopting belt drive mechanism to make electric engine's output shaft and the concentric back of back shaft that the wheel supported the swing arm simultaneously, eliminated the wheel and jolted the influence to drive belt tensioning state, kept the invariant of drive belt tensioning force, guaranteed the stability of belt drive mechanism work, simultaneously, still reduced the noise in the drive mechanism working process.

Drawings

FIG. 1 is a schematic view of a cross-sectional structure of a wheel motor according to the present invention;

FIG. 2 is a view of the rim of FIG. 1 taken away from the hub of FIG. 2;

FIG. 3 is a schematic view of a partial sectional structure of the wheel motor of the present invention;

fig. 4 is a schematic perspective view of the wheel motor of the present invention 1;

fig. 5 is a schematic perspective view of the wheel motor of the present invention shown in fig. 2;

fig. 6 is a schematic view of the wheel electric drive system of the present invention;

FIG. 7 is a schematic view of a partial structure of an electric engine and a transmission part thereof of the environment-friendly automobile of the present invention;

fig. 8 is a detailed structural diagram of the portion of fig. 7.

The labels in the figure are: 1 rim, 2 hub, 3 outer ring winding, 4 outer ring permanent magnet, 5 inner ring winding, 6 inner ring permanent magnet, 7 cooling water channel, 8 bearing, 9 electric engine, 10 computer control device, 11 rectifier/voltage regulator, 12 battery, 13 wheel speed sensor, 14 switch controller, 15 wheel cable, 16 electric engine cable, 17 battery cable, 18 battery sensor cable, 19 current control line, 20 engine speed sensor cable, 21 wheel speed sensor cable, 35 switch controller cable, 23 swing arm, 24 transmission belt, 25 belt pulley, 26 swing arm support shaft, 27 wheel shaft, 28 support arm, 29 tensioning wheel, 30 rim yoke plate, 31 yoke plate upper sleeve, 32 hub radial outer ring plate, 33 hub radial inner ring plate, 34 ring deep groove, 35 wheel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the wheel motor of the present invention shown in fig. 1-5, the wheel hub 2 includes two layers of cylindrical ring plates 32, 33 which are sleeved inside and outside and are concentric with each other in the radial direction, wherein the ring plate 33 in the radial direction forms a shaft sleeve connecting the wheel hub 2 and a wheel axle (not shown in the figure), and a bearing 8 is disposed in the hole; the two annular plates 32, 33 of the hub 2 are radially spaced apart and thus form an annular deep groove 34 open towards the axially outer side of the hub 2. The rim 1 is sleeved on the hub 2 from the axial outside of the hub 2, and the yoke 30 of the rim 1 is provided with a sleeve 31 on the surface facing the hub 2, and the sleeve 31 is inserted into an annular deep groove 34 formed between two layers of ring plates 32 and 33 on the hub 2 in a hanging manner while the rim 1 is sleeved on the hub 2. The radial outer surface of the radial outer side ring plate 32 of the hub 2 is provided with windings 3 arranged along the circumferential direction of the radial outer surface, and the radial outer surface of the radial inner side ring plate 33 is provided with windings 5 arranged along the circumferential direction of the radial outer surface; the radial inner surface of the rim 1 is provided with permanent magnets 4 arranged along the circumferential direction, and the radial inner surface of the sleeve 31 on the circular plate 30 is provided with permanent magnets 6 arranged along the circumferential direction; the permanent magnet 4 is matched with the winding 3 to form an outer ring motor structure on the wheel hub 2 and the wheel rim 1, and the permanent magnet 6 is matched with the winding 5 to form an inner ring motor structure on the wheel hub 2 and the wheel rim 1. In order to ensure that the heat dissipation of the outer ring winding 3 and the inner ring winding 5 on the hub 2 is good and ensure the normal work of the inner and outer ring motors, the hub 2 is also provided with an annular cooling water channel 7 with an opening facing to the axial outer side of the hub on the radial outer side ring plate 32, and a circulating cooling water pipeline is arranged in the cooling water channel 7 to realize the effective cooling of the hub 2 and the

windings

3 and 5 thereon.

Under the condition of ensuring enough power, only an outer ring motor structure can be arranged between the hub 2 and the rim 1. Of course, in order to improve the total power of the wheel motor, besides the two sets of motor structures of the inner ring and the outer ring which are arranged between the wheel hub 2 and the wheel rim 1 in the above way, more ring plates can be arranged in the radial middle of the wheel hub 2, and more sleeves which correspond to the ring plates on the wheel hub 2 one by one are arranged on the ring plates of the wheel rim 1, so that a first inner ring motor structure, a second inner ring motor structure and a third inner ring motor structure are formed between the wheel hub 2 and the wheel rim 1. Under the condition that the motor structures arranged between the hub 2 and the rim 1 are increased, in order to ensure that the hub 2 and the upper winding thereof have good heat dissipation, the hub 2 can also be provided with a cooling water channel on the ring plate at the radial middle part thereof.

The cooling water channel 7 is only an annular groove formed in the hub 2, and finally the hub 2 and a winding thereof are cooled by arranging a circulating cooling water pipeline in the annular groove, when a sealing cover is arranged at an opening of the annular groove to form a closed channel, circulating cooling water can be directly introduced into the closed channel to cool the hub 2, and at this time, only a water inlet and a water outlet connected with an external circulating cooling water system are required to be arranged on the hub 2.

Fig. 6 is a schematic diagram of the wheel electric drive system of the present invention, which includes a computer control device 10, a rectifier/voltage regulator 11, a battery 12, four wheel motors, and two electric engines 9, and the whole system is started by a switch controller 14 connected to the computer control device 10 through a control line 22. The computer control device 10 controls the voltage regulator 11 and the cable 16 to operate the electric motor 9 by using the electric energy of the battery 12.

The four wheel motors may be switched between the generator and the motor under the control of the computer control device 10.

When the wheel motor operates as a generator, the wheel motor generates electric power as the wheel is rotated by the driving of the electric motor 9, and the generated electric power is continuously inputted to the rectifier 11 through the cable 15. The computer control device 10 obtains detailed power information in the rectifier 11 through the current control line 19, and controls the rectifier 11 to charge the battery 12 through the cable 17 when the wheel motor generates enough power.

When the wheel motor works as a motor, it can output the torque in the same direction as the direction of the electric motor 9 under the control of the computer control device 10, and the wheel motor as the electric motor receives the electric energy supplied by the storage battery 12 under the control of the computer control device 10 and drives the wheel to rotate together with the electric motor 9. Under the control of the computer control device 10, the wheel motor can also output torque opposite to the direction of the electric engine 9, and then the wheel motor can be used for providing braking force for the wheel to brake the rotation of the wheel.

During the process of driving the electric motor 9 to rotate the wheels, the computer control device 10 obtains the accurate rotation speed of the wheels and the electric motor associated with the wheels at any time through the wheel rotation speed sensor 13, the engine rotation speed sensor (not shown in the figure) and the

cables

20 and 21, and if necessary, the computer control device 10 can respectively control the rotation speed of each wheel by inputting different electric energy to each electric motor 9 so as to adapt to the curve motion of the vehicle.

Referring to fig. 6, 7 and 8, the utility model discloses use the environmental protection car that has above-mentioned wheel electric drive system, including the automobile body (not shown in the figure), install on the automobile body and contain the utility model discloses four wheels 35 of wheel motor, wherein two rear wheels 35 directly link to each other with electric engine 9 power. Two rear wheels 35 are mounted on the vehicle body through a swing arm 23, one end of the swing arm 23 is connected with the wheels 35, the other end of the swing arm 23 is rotatably mounted on a support shaft 26 arranged on the vehicle body, and a support arm 28 is further arranged between the swing arm 23 and the vehicle body. An output shaft of an electric engine 9 arranged on a vehicle body is in power connection with a driving shaft 27 of a wheel 35 positioned at one end of a swing arm 23 through a belt transmission mechanism consisting of a synchronous belt 24 and a belt pulley 25, the output shaft of the electric engine 9 is concentric with a supporting shaft 26 of the swing arm 23, and in order to ensure the reliable work of the synchronous belt 24, a synchronous belt tension pulley 29 is also arranged on the swing arm 23. Of course, in order to stably operate the wheel motors on the wheels 35, a corresponding cooling water circulation device (not shown) is also provided on the vehicle body.

After the output shaft of the electric motor 9 is concentrically arranged with the support shaft of the swing arm 23 and the tension pulley 29 is arranged on the swing arm 23, when the vehicle runs on an uneven road surface, the distance between the output shaft of the electric motor 9 and the wheel drive shaft is always constant no matter how the wheel 35 swings relative to the vehicle body, and the tension state of the synchronous belt 24 is always constant, so that the influence of a bumpy road surface on the work of the electric motor 9 is eliminated.

The electric engine 9 is connected with the wheels 35 by adopting a belt transmission mechanism for power, so that the noise generated by the transmission mechanism can be reduced to the maximum extent under the condition of ensuring the stability of transmission, and the noise pollution to the surrounding environment is reduced.

The above-described embodiments are merely examples of the present invention and should not be construed as limiting the invention.

Claims

1. A wheel motor comprises a hub and a rim, wherein the rim is provided with a fortune plate connected with a wheel shaft, and the rim is sleeved on the hub from the axial outer side of the hub; the hub is characterized in that windings arranged along the circumferential direction of the hub are arranged on the radial outer surface of the hub, permanent magnets arranged along the circumferential direction of the hub are arranged on the radial inner surface of the rim, and the windings and the permanent magnets are matched with each other, so that an outer ring motor structure on the hub and the rim is formed; the hub is provided with a cooling water channel, and the hub and the winding on the hub are cooled through the cooling water channel.

2. The wheel motor of claim 1, wherein said hub includes at least two cylindrical ring plates radially nested inside and outside and concentric with each other, and wherein said outer ring motor structure is located between the outermost ring plate of the hub and said rim, and two adjacent ring plates are radially spaced apart to form an annular deep groove with an opening facing axially outward of the hub; the hub is characterized in that the hub is corresponding to a multi-layer ring plate structure on the hub, sleeves which are concentric with the hub and respectively correspond to ring plates in the radial middle of the hub one to one are arranged on a radial plate of the hub, the sleeves are suspended into annular deep grooves between every two adjacent ring plates in the radial middle of the hub one by one when the hub is sleeved on the hub, permanent magnets which are arranged along the circumferential direction of the sleeves are arranged on the radial inner surface of each sleeve, windings which are arranged along the circumferential direction of the sleeves are arranged on the radial outer surface of each ring plate in the middle of the hub, the permanent magnets on each sleeve are matched with the windings on the adjacent ring plates in the radial inner side of each sleeve, and therefore, the individual.

3. The wheel motor of claim 2, wherein the hub includes two layers of cylindrical ring plates radially corresponding thereto, the ring plate of the rim having a sleeve disposed thereon, the hub and rim having an outer ring motor structure and an inner ring motor structure disposed thereon.

4. The wheel motor of claim 1, wherein the cooling water passage is an annular groove provided on the hub concentrically therewith, and a cooling water pipe is provided in the annular groove.

5. The wheel motor of claim 1, wherein the cooling water channel is a closed annular channel concentric with the hub, and water inlets and water outlets communicated with the closed annular channel are arranged on the side wall of the hub at intervals.

6. The wheel motor according to claim 3, wherein the cooling water passage is an annular groove provided on the hub concentrically therewith, the annular groove being provided on a radially outermost annular plate on the hub, an opening of the annular groove facing an axially outer side of the hub, the annular groove being provided with a cooling water pipe therein.

7. An electric wheel drive system using the wheel motor according to any one of claims 1 to 6, comprising a computer control device, a rectifier, a battery, a wheel motor, an electric motor; wherein,

the computer control device controls the storage battery to supply power to the electric engine to drive the wheels to rotate;

the computer control device controls the wheel motor to switch between the generator and the motor, and meanwhile, the storage battery correspondingly receives the electricity charged by the wheel motor through the rectifier or provides the electric energy to the wheel motor under the control of the computer control device.

8. The electric wheel drive system according to claim 7, wherein the computer control means controls the electric power input to the respective wheel motors to have different rotation speeds of the respective wheels in response to the curve motion operation of the vehicle by controlling the electric power input to the respective wheel motors to have different magnitudes when the wheel motors function as motors and output the torque in the same direction as the electric motor.

9. An environment-friendly automobile using the wheel electric drive system of claim 7 or 8, comprising a body, wheels, an electric engine, wherein the wheels comprise the wheel motor, wherein the wheels directly connected with the electric engine are mounted on the body through a swing arm, the wheels are connected with one end of the swing arm, the other end of the swing arm is rotatably mounted on a support shaft arranged on the body, an output shaft of the electric engine mounted on the body is connected with a drive shaft of the wheels at one end of the swing arm through a belt transmission mechanism, an output shaft of the electric engine is concentric with the support shaft of the swing arm, and a cooling water circulation device connected with the cooling water channel on the wheel motor is further arranged on the body.

10. The eco-friendly vehicle as claimed in claim 9, wherein the belt of the belt transmission mechanism is a synchronous belt, and the belt transmission mechanism is further provided with a tension pulley mounted on a support shaft provided on the swing arm.