WO2010117178A2

WO2010117178A2 - Power-generating apparatus for an electric vehicle

Info

Publication number: WO2010117178A2
Application number: PCT/KR2010/002083
Authority: WO
Inventors: 이정용
Original assignee: 주식회사 레오모터스
Priority date: 2009-04-06
Filing date: 2010-04-06
Publication date: 2010-10-14
Also published as: WO2010117178A3; KR20100111099A; KR101140345B1

Abstract

The present invention relates to a power-generating apparatus for an electric vehicle equipped with a power-generating means, wherein the power generating means comprises: a discoid conductive bar made of a conductive material through which electrical current can flow, and having a through-hole in the center thereof; a power-transmitting shaft inserted into the through-hole of the conductive bar to rotate together with the conductive bar, and dynamically connected to a drive wheel of the electric vehicle; and a cover provided with a magnet for forming a magnetic field to rotate the conductive bar via electrical power, disposed so as to enclose the conductive bar, and coupled in a rotatable manner with respect to the power-transmitting shaft, such that the rotational force of the conductive bar via the electrical power is transferred to the power-transmitting shaft in order to rotate the drive wheel.

Description

Power generator of electric vehicle

The present invention relates to an electric vehicle, and more particularly, to generate power of an electric vehicle that can simplify the structure of the power generating means of the electric vehicle and improve the structure so that the mutual coupling process of the plurality of power generating means can be simplified. Relates to a device.

In general, the power generating means of the electric vehicle is a motor. The motor is a device that converts electrical energy into mechanical work by using a force received by a current in a magnetic field. The motor includes a rotor having a plurality of coils wound around a conductor and a field forming a magnetic field such as a permanent magnet.

In such a motor, when a current-carrying conductor is placed in a magnetic field, an electromagnetic force is generated in a direction perpendicular to the direction of the magnetic field, thereby rotating by Fleming's left hand law, thereby generating power.

However, as the motor employed in the electric vehicle, not only one motor is used but also a plurality of motors are preferably employed, as disclosed in Korean Patent No. 0682489.

Therefore, it is required to simplify the structure of the motor in order to increase the efficiency and simplification of the structure of the electric vehicle. As a result, the conventional winding-type motor has a result of contrary to the development trend to simplify and mass-produce the structure of the electric vehicle by its complicated structure, so that a new power transmission means is required to be adopted in the electric vehicle. .

The present invention has been made to solve the problems described above, an object of the present invention is to provide a power generating device for an electric vehicle that can contribute to simplify the structure and increase the mass production of the electric vehicle.

The present invention for achieving the above object relates to a power generating device of an electric vehicle provided with a power generating means, the power generating means is made of a conductive material so that the current can flow, the circle is formed with a through hole in the center Plate-shaped conductor bars; A power transmission shaft coupled to the through hole of the conductor bar so as to rotate together with the conductor bar, and being electrically connected to the driving wheel of the electric vehicle; And a magnet which forms a magnetic field so that the conductor bar can be rotated by an electromagnetic force, is disposed in a form surrounding the conductor bar, and is coupled to the power transmission shaft so as to be relatively rotatable. The driving wheel is configured to rotate by transmitting the rotational force of the conductor bar to the power transmission shaft.

A plurality of power generating means are provided, and each of the power generating means is disposed adjacent to each other such that the power transmission shafts are coaxially positioned with each other, and one end of each of the power transmission shafts has a groove portion having a non-circular cross section. And the other end is formed with a projection having a non-circular cross-section, it is preferable that any one of the adjacently arranged power transmission shaft is configured to be coupled to the groove portion of the other power transmission shaft facing the projection.

The cover may be configured such that the conductor bar is rotatably disposed in a space formed by coupling the first cover part and the second cover part to each other, and formed by the coupling of the first cover part and the second cover part. desirable.

The magnet may include a first magnet provided on the first cover part and a second magnet provided on the second cover part and having a different polarity than that of the first magnet, wherein the first magnet and the second magnet are the same. It is preferable that the conductor bar is arranged so as to be disposed on opposite sides of each other.

Power generating device of the electric vehicle according to the present invention having the configuration as described above is simplified in the configuration of the power generating means for generating the power of the electric vehicle and transmitting the power to the drive wheel and the molding of each part is quick and easy It can be made, has the advantage of increasing the mass productivity of the product.

In addition, according to an exemplary embodiment in which a plurality of power generating means are provided, when driving uphill, for example, the plurality of conductor bars are rotated, and in the case of downhill or flat roads, only one of the conductor bars is rotated. It is also configured to be able to drive the electric vehicle efficiently according to the situation of the driving road.

1 is an exploded perspective view of a power generator of an electric vehicle according to an embodiment of the present invention.

Figure 2 is a cross-sectional view showing a structure in which a plurality of power generating means employed in one embodiment of the present invention is arranged.

3 is a view from the direction A of FIG.

4 is a schematic cross-sectional view of a power generator of an electric vehicle according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: power generating means

1: conductor bar 10: through hole

2: power transmission shaft 21: groove

22: protrusion 3: cover

31: First cover part 311: First magnet

32: second cover portion 321: second magnet

4: bearing

Hereinafter, with reference to the accompanying drawings a power generating apparatus for an electric vehicle according to an embodiment of the present invention will be described in detail.

1 is an exploded perspective view of a power generator of an electric vehicle according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing a structure in which a plurality of power generating means employed in one embodiment of the present invention is arranged, Figure 3 It is a figure seen from the A direction of FIG.

As shown in these figures, the power generator of the electric vehicle according to the present invention is provided with a power generating means 100 for driving the electric vehicle based on an electrical signal, the conductor plate 1 and the power transmission It comprises a shaft (2) and the cover (3).

The conductor plate 1 is made of a conductor material through which a current such as copper or aluminum can flow, and is formed in a disc shape by a process such as die casting. The conductor plate 1 has a through hole 10 formed in a central portion thereof, and through the through hole 10, the power transmission shaft 2 is rotatable together with the conductor plate 1. Is coupled to.

Configurations for rotating the conductor plate 1 and the power transmission shaft 2 can be implemented in various ways. For example, although not shown, a key groove is formed in the conductor plate 1 and the power transmission shaft 2, and a key is inserted into the key groove, thereby providing the conductor plate 1 and the power transmission shaft ( 2) can be configured to rotate together. The conductor plate 1 and the power transmission shaft 2 may be rotated together by forcibly fitting the power transmission shaft 2 to the through hole 10 of the conductor plate 1.

The power transmission shaft 2 is rotatably coupled to the conductor plate 1 together with the conductor plate 1. The power transmission shaft 2 is dynamically connected to the driving wheel of the electric vehicle, and serves to transmit the rotational force of the conductor plate 1 to the driving wheel.

The cover 3 is arranged in the form of enclosing the conductor plate 1 and includes a magnet for forming a magnetic field. This cover 3 is rotatably coupled to the power transmission shaft 2. That is, by installing the bearing 4 on the cover 3 so that the bearing 4 can be disposed between the cover 3 and the power transmission shaft 2, the power transmission shaft 2 to the cover ( It can rotate about 3).

In the present embodiment, the magnet provided in the cover 3, but the permanent magnet is employed, the present invention is not limited to this, for example, it is possible to employ an electromagnet.

When a current is applied to the conductor plate 1, it is generated in the electromagnetic force by the magnetic field by the magnet. In this case, the conductor plate 1 is rotated by the electromagnetic force, thereby transmitting the rotational force to the power transmission shaft 2 to rotate the driving wheel.

Meanwhile, in the present embodiment, the cover 3 includes a first cover part 31 and a second cover part 32 having symmetrical shapes with the conductor plate 1 interposed therebetween. The cover 3 may have a disc shape by combining the first cover part 31 and the second cover part 32 with each other, and the first cover part 31 and the second cover part 32 may have a disc shape. The conductor plate 1 is rotatably arranged in the space formed by the combination of

The magnet includes a first magnet 311 provided in the first cover part 31 and a second magnet 321 provided in the second cover part 32, and the second magnet 321. ) Has a different polarity than the first magnet 311. For example, when the first magnet 311 is the N pole, the second magnet 321 becomes the S pole. As shown in FIG. 2, the first magnet 311 and the second magnet 321 are disposed on opposite sides with the conductor plate 1 interposed therebetween.

The power generating apparatus for an electric vehicle according to the present invention having such a configuration has an advantage that the configuration is simpler and that the molding of each part can be made easier than the conventional winding type motor. That is, the conductor plate 1, the power transmission shaft 2 and the cover 3 is provided with a magnet to generate power to be able to transfer the power to the drive wheel, the configuration for generating and transmitting power It is simple. In addition, each component of the power generating device of the electric vehicle, that is, the conductor plate 1 is formed by a process such as die casting, and the cover 3 is injection-molded the case portion excluding the magnet by a material such as synthetic resin By forming the magnet to the case portion, the time required for molding is reduced. As a result, according to the present invention, the mass productivity of the product can be improved due to the simplification of the configuration and the speed of the molding.

Meanwhile, in the present embodiment, as shown in FIG. 2, a plurality of power generating means 100 including the conductor plate 1, the power transmission shaft 2, and the cover 3 are provided. Such a plurality of power generating means 100 can cause the current is selectively applied to each conductor plate (1), so that each of the conductor plate (1) is all rotated or only one conductor plate (1) is rotated. have. As such, the conductor plates 1 are configured to be selectively rotated, so that each conductor plate 1 is rotated when driving uphill and any one of the conductor plates 1 when it is downhill or flat. Only one conductor plate 1 can be rotated. As a result, according to the present embodiment, there is an advantage that the electric vehicle can be driven efficiently according to the situation of the driving path.

Referring to the configuration of the plurality of power generating means 100 to exhibit these advantages are as follows.

The power generating means 100 are arranged adjacent to each other such that the power transmission shafts 2 are coaxially located with each other. That is, the power transmission shafts 2 are arranged coaxially with each other, and the power generating means 100 are arranged along the axial direction of the power transmission shaft 2.

Each power transmission shaft 2 of each of the power generating means 100 is configured to rotate together. That is, a groove 21 having a non-circular cross section is formed at one end of each of the power transmission shafts 2, and a protrusion 22 having a non-circular cross section is formed at the other end.

By this structure, the groove part 21 of the other power transmission shaft 2 which the projection part 22 of the pair of power transmission shafts 2 which adjoin is arrange | positioned facing the projection part 22 is provided. To be coupled to each of the power transmission shaft (2) will be able to rotate together.

On the other hand, Figure 4 is a schematic cross-sectional view of a power generating device of an electric vehicle according to another embodiment of the present invention.

In this embodiment, the first cover part 310 and the second cover part 320 are configured to be approached and spaced apart from each other by a moving means such as the motor M and the feed screw 330.

That is, the transfer screw 3300 is provided with a pair of threads having a thread shape in the opposite direction to each other, the first cover portion 310 is coupled to any one of the pair of screw portions and the second cover portion 320 is coupled to the other of the pair of screw portions, so that when the motor (M) is rotated, the first cover portion 310 and the second cover portion 320 approaches and spaced apart from each other do.

Here, the magnitude of the electromagnetic force will be described. The magnitude of the electromagnetic force is proportional to the strength of the magnetic field and the magnitude of the current and the length of the coil, the strength of the magnetic field is proportional to the magnetic flux density, the magnetic flux density is the peripheral distance of the coil, that is, the magnet in this embodiment Are inversely proportional to the distance between the

fields

311 and 321 and the conductor plate 350.

In the case of a general motor, the rotational force of the motor is controlled by adjusting the magnitude of the current. In the case of an electric vehicle, a large current is applied to the motor in order to transmit the rotational force to the motor because a heavy-weight vehicle must be moved to the motor. You must do it. As a result, in the case of adjusting the rotational force of the motor by the application of current, the rapid consumption of electricity stored in the battery requires the use of a large capacity battery, which leads to the disadvantage that the replacement cycle of the fuel cell for supplying the battery is accelerated. do.

Therefore, in the present exemplary embodiment, the magnets 311 are moved by relatively moving the first cover part 310 and the second cover part 320 so as to adjust the strength of the magnetic field instead of adjusting the magnitude of the current. The distance between the 321 and the conductor plate 350 can be adjusted. According to this embodiment, it is configured to control the rotational force of the conductor plate 3500 by adjusting the distance between the magnets (311, 321) and the conductor plate 350, thereby reducing the power consumption Have

As a result, when the power generator according to the present embodiment is employed in an electric vehicle, the power consumption of the power generator is reduced, thereby preventing the use of a large capacity battery and extending the replacement cycle of the battery. There is an advantage.

In the drawing, reference numeral 340 is a guide member for guiding relative movement of the first cover part 310 and the second cover part 320.

As mentioned above, although preferred embodiment about this invention was described, this invention is not limited to the above-mentioned embodiment, It is defined by what was described in the claim, and it is clear that various deformation | transformation and adaptation are possible in the technical field to which this invention belongs. Do.

Claims

It relates to a power generating device of an electric vehicle provided with a power generating means 100,

The power generating means 100 is:

A plate-shaped conductor plate 1 made of a conductor material so that a current can flow, and a through hole 10 formed at a center thereof;

A power transmission shaft (2) coupled to the through hole (10) of the conductor plate (1) so as to be rotated together with the conductor plate (1), and electrically connected to a driving wheel of the electric vehicle; And

A magnet is provided to form a magnetic field so that the conductor plate 1 can be rotated by an electromagnetic force, is disposed in a form surrounding the conductor plate 1, and is coupled to the power transmission shaft 2 so as to be relatively rotatable. With cover 3,

Power generating device for an electric vehicle, characterized in that the driving wheel is rotated by the rotational force of the conductor plate (1) by the electromagnetic force is transmitted to the power transmission shaft (2).
The method of claim 1,

A plurality of power generating means 100 is provided,

The power generating means 100 are arranged adjacent to each other such that the power transmission shafts 2 are coaxially located with each other,

One end of each of the power transmission shafts 2 is provided with a groove portion 21 having a non-circular cross section, and the other end is formed with a protrusion 22 having a non-circular cross section, so that the power transmission shafts 2 are arranged adjacently. Any one of the projections 22 is a power generating device of an electric vehicle, characterized in that configured to be coupled to the groove portion (21) of the other power transmission shaft (2) facing the projection (22).
The method of claim 1,

The cover 3 has a disc shape by coupling the first cover part 31 and the second cover part 32 to each other, and the first cover part 31 and the second cover part 32 are coupled to each other. The conductor plate (1) is configured to be rotatably disposed in the space formed by the power generating device of the electric vehicle.
The method of claim 3,

The magnet may include a first magnet 311 provided in the first cover part 31 and a second magnet 321 provided in the second cover part 32 and having a different polarity than that of the first magnet 311. ),

The first magnet (311) and the second magnet (321) is a power generating device for an electric vehicle, characterized in that configured to be arranged on the opposite side with the conductor plate (1) in between.