KR20180022220A - Self Generating Apparatus of Disk Break - Google Patents

Abstract

A self-generation device applied to a disc brake is disclosed. The self-generation device applied to the disc brake according to one embodiment of the present invention comprises: a first magnet disposed on a disc in a circular plate shape which is coupled to a wheel shaft of a vehicle and rotates together with the wheel shaft and located on the disc and a concentric hole so as to rotate in accordance with the rotation of the disc; a second magnet disposed on one side of a caliper housing, in which an accommodation groove for accommodating a part of the disc is formed and a hydraulic device restraining the rotation of the disc by tightly coupling a brake pad of a vehicle to the disc is equipped, to face the first magnet; and an electricity generation portion which is disposed between the first magnet and the second magnet and generates electricity induced by a change of magnetic field according to the rotation of the first magnet.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-generating device, and more particularly, to a self-generating device applied to a disc brake in which electricity is generated in accordance with rotation of a disc.

Although automobiles use fossil fuels such as gasoline and light oil as main energy sources, various alternative energy sources have been actively studied due to the exhaustion of fossil fuels and the problem of global environmental destruction caused by various harmful substances emitted from fossil fuels. Currently, electric vehicles, hybrid cars and bio-cars are in the practical use stage, and electric cars and hybrid cars have achieved remarkable results.

The next-generation automotive energy source is the most desirable. However, in order to use electricity as an energy source for automobiles, it is necessary to mount a high capacity battery in the vehicle, so that the weight of the vehicle is increased. In addition, There is a problem that the weight is increased by being mounted on a vehicle. Therefore, the development of a high capacity, miniaturized and lightweight battery suitable for an electric vehicle has been actively carried out, and many achievements have been made.

However, since the electric power of the storage battery is gradually consumed when the vehicle is running, the battery can not be operated unless the battery is recharged. Therefore, much research has been conducted on the technique of charging electricity into the battery by utilizing the traveling energy of the vehicle during traveling.

For example, as shown in an automobile using gasoline or light oil as fuel, the generator is rotated by using the rotational force of the engine after the engine is started, so that the electricity obtained by the generator is ignited by an ignition device such as an engine ignition, a headlight, And a power source for an audio device or a driver's instrument panel point light, and some of the remaining power is charged to the battery.

As described above, an electric vehicle or a hybrid electric vehicle is also configured to generate electric power by using traveling energy when driving a vehicle, and to charge the generated electricity into a large capacity battery.

On the other hand, there have been various researches on self-power generation systems that convert rotational energy into electric energy. Such a self-power generation system can not be applied to a wheel or a disk of a vehicle that directly generates rotational force, Since they are connected through a member, they can not utilize 100% of the rotational power of the wheel or the disk, so that the electric production capacity is not satisfactory.

In order to compensate for the above disadvantages, a self-power generation system has been disclosed in which a piezoelectric element can be used to produce electricity as disclosed in Japanese Patent Laid-Open Publication No. 10-2014-0083740 (Laid-open date 2014.07.04).

However, the self-power generation system using the piezoelectric element as described above produces electricity by using the pressure. Therefore, there is a limit in reusing the rotational power of the wheel.

Public Practice 20-2009-0013251 Patent Document 1: JP-A-10-0016441

SUMMARY OF THE INVENTION The present invention has been made to overcome the above-mentioned problems, and an object of the present invention is as follows.

First, the present invention intends to provide a self-generating apparatus which is applied to a brake of an automobile to be applied to a disc brake capable of generating power only by rotation of the disc.

Second, the present invention intends to provide a self-generating device that is applied to a disc brake that can be simply constructed by additionally providing only a magnet and an electricity generating portion in a conventional brake.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above-mentioned object, a self-power generation apparatus applied to a disk brake according to a first embodiment of the present invention includes a first magnet, a second magnet, and an electricity generating unit.

The first magnet is disposed on a circular plate-shaped disk coupled with the wheel shaft of the automobile and rotates together with the wheel shaft, and is disposed concentrically with the disk and rotates together with the rotation of the disk.

Wherein the second magnet has a receiving recess formed therein for receiving a part of the disk and a hydraulic device for restricting the rotation of the disk by closely contacting the brake pad of the automobile with the disk, And a surface facing the first magnet has a pole different from that of the first magnet.

The electricity generating unit is disposed between the first magnet and the second magnet to produce electricity induced by a change in magnetic field due to rotation of the first magnet.

Here, the first magnet may be disposed on a plane of the disk.

In this case, the first magnet may be disposed at a position other than a portion in contact with the brake pad when the driver depresses the brake.

Alternatively, the first magnet may be disposed on an outer circumferential surface of the disk.

In this case, the electricity generating portion may be arranged to cross the receiving groove formed in the caliper housing.

A ring-shaped insertion groove is formed in the disk, and the ring-shaped first magnet corresponding to the insertion groove can be inserted into the insertion groove.

The disk may have a plurality of insertion grooves spaced apart from each other by a predetermined distance, and the first magnet may be inserted into each of the insertion grooves.

On the other hand, the first magnet has a first polarity in a portion fixed to the disk, and a second polarity in a portion of the first magnet facing the disk, the second polarity being different from the first polarity, Which may be permanent magnets.

The second magnet has a first polarity that is opposite to the first polarity and a second polarity that is different from the second polarity, and the second magnet has a second polarity. Lt; / RTI >

Here, the magnitudes of the magnetic forces of the first magnet and the second magnet may be equal to each other.

A shielding portion is provided at a portion of the first magnet and the second magnet not facing each other to prevent leakage of the magnetic field.

The effects of the present invention will be described below.

According to a first aspect of the present invention, there is provided a self-generating apparatus for a disc brake, comprising a first magnet disposed on a disc, a second magnet disposed on the caliper housing so as to face the first magnet, A current may be generated in the electricity generating part as the first generating part is disposed between the second magnets and the first magnet rotates during the rotation of the disk to cause a change in the magnetic field around the electricity generating part. Accordingly, electricity can be generated by merely moving the vehicle, which can be utilized as an energy source of the electric device of the automobile.

Second, according to the self-power generation apparatus applied to the disc brake according to the first embodiment of the present invention, electric energy can be obtained by disposing only the first magnet, the second magnet and the electricity generating unit in the conventional disc and caliper housing.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

The foregoing summary, as well as the detailed description of the preferred embodiments of the present application set forth below, may be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there are shown preferred embodiments in the figures. It should be understood, however, that this application is not limited to the precise arrangements and instrumentalities shown.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a self-generating device applied to a disk brake according to a first embodiment of the present invention; FIG.
2 is a front view showing an example of a self-generating device applied to a disc brake according to the first embodiment of the present invention;
3 is a front view showing still another example of a self-generating device applied to a disc brake according to the first embodiment of the present invention; And
FIG. 4 is a cross-sectional view showing a self-generating device applied to a disk brake according to a second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.

In describing the embodiments of the present invention, it is to be noted that elements having the same function are denoted by the same names and numerals, but are substantially not identical to elements of the prior art.

Also, the terms used in the present application are used only to describe certain embodiments and are not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, a self-generating device applied to a disk brake according to a first embodiment of the present invention will be described with reference to FIG.

1 is a cross-sectional view showing a self-generating device applied to a disk brake according to a first embodiment of the present invention.

As shown in FIG. 1, the self-power generation apparatus applied to the disc brake according to the first embodiment of the present invention includes a first magnet 120, a second magnet 230, and an electricity generation unit 240.

The first magnet 120 may be disposed on the disc 100 of the brake.

Here, the disc 100 is applied to a disc brake of a general automobile, and may have a circular plate shape coupled with a wheel shaft 110 of an automobile to rotate together with the wheel shaft 110.

The first magnet 120 is positioned concentrically with the disc 100 and rotates together with the rotation of the disc 100. [

In the first embodiment of the present invention, the first magnet 120 may be disposed on the plane of the disk 100. [

To this end, the disc 100 may have an insertion groove 102 formed concentrically with the periphery of the disc 100. A first magnet 120 having a shape corresponding to the insertion groove 102 may be inserted into the insertion groove 102.

If the first magnet is inserted into the insertion groove at a portion contacting the brake pad, the strength and hardness of the first magnet are different from each other. Therefore, the brake pad is not uniformly worn during friction with the brake pad, The brake pads may be twisted. This can lead to a major accident because it directly affects the braking of the car.

Accordingly, the insertion groove 102 can be formed in a portion not in contact with the brake pad 210 when the driver of the car depresses the brake. That is, the first magnet 120 may be disposed at a portion not in contact with the brake pad 210. Thereby, interference with rotation of the disc 100 can be avoided.

Meanwhile, the second magnet 230 may be disposed in the caliper housing 200.

The caliper housing 200 is the same as the caliper housing 200 which is applied to a disc brake of a general automobile. The caliper housing 200 is formed with a receiving groove 202 for receiving a part of the disc 100, And a hydraulic device 220 for restricting the rotation of the disc 100 by tightly contacting the disc 100 may be incorporated.

The second magnet 230 may be disposed on one side of the receiving groove 202 of the caliper housing 200 so as to face the first magnet 120.

In this embodiment, the intensities of the magnetic forces of the first magnet 120 and the second magnet 230 may be equal to each other.

1, the first magnet 120 is disposed on only one side of the disk 100. However, the arrangement of the first magnet 120 is not limited to the drawings, and the first magnet 120 may be disposed on the disk 100 As shown in Fig. When the first magnet 120 is installed on both sides of the disk 100, the second magnet 230 may also be installed on both sides of the receiving groove 202.

The first magnet 120 has a first polarity 120a that is fixed to the disk 100 and is exposed to a portion of the disk 100 opposite to the second magnet 230, Portion may be a permanent magnet magnetized in a vertically stacked structure so as to have a second polarity 120b having a polarity different from that of the first polarity 120a.

The portion of the second magnet 230 facing the first magnet 120 has a first polarity 230a having a polarity different from that of the second polarity 120b and a portion fixed to the caliper housing 200 And may be a permanent magnet magnetized in a vertical lamination structure so as to have a bipolarity 230b.

For example, if the portion of the first magnet 120 fixed to the disk 100 is an S pole, the portion of the disk 100 exposed to the outside may have N poles. A portion of the second magnet 230 facing the first magnet 120 has an S-pole, and a portion of the second magnet 230 fixed to the caliper housing 200 may have an N-pole.

On the contrary, if the portion of the first magnet 120 fixed to the disk 100 is N-pole, the portion of the disk 100 exposed to the outside may have the S-pole. The portion of the second magnet 230 facing the first magnet 120 has an N pole and the portion fixed to the caliper housing 200 can have an S pole.

Although the polarities of the first magnet 120 and the second magnet 230 are magnetized in the same manner as in the first embodiment, the first magnet 120 and the second magnet 230 The polarity may be magnetized like an electron.

The electromagnet is magnetized when the electric current flows and is not magnetized when the electric current does not flow, and electric wires and electric devices for inputting the electric current are indispensable. Therefore, it may not be suitable to be applied to the first magnet 120 and the second magnet 230 of the present embodiment. Therefore, permanent magnets can be applied to the first magnet 120 and the second magnet 230 of the present embodiment.

The electricity generating unit 240 is disposed between the first magnet 120 and the second magnet 230 to generate electricity induced by a change in the magnetic field caused by the rotation of the first magnet 120. The electricity generated through the electricity generating unit 240 may be electrically connected to the storage battery to be stored in the battery although not described in detail in this embodiment.

In this embodiment, one end or both ends of the electricity generating portion 240 may be fixed to the inner wall of the receiving groove 202 of the caliper housing 200. Here, the electricity generating unit 240 is a plate-shaped core structure arranged in multi-stages, and it can use a ferrite core in which a coil is wound around an iron core or a coil is wound. The greater the number of times the coil is wound, the more the intensity of the current can be improved.

On the other hand, a permanent magnet can not have only one polarity. That is, when the N pole is formed on one side, the S pole must be formed on the other side.

Accordingly, the magnetic flux of the first magnet 120 can not completely be directed to the second magnet 230, but can be partially leaked to the pole formed on the opposite side of the first magnet 120. The magnetic flux can be leaked by the pole located on the surface of the second magnet 230 not facing the first magnet 120 as well.

Therefore, the first and second magnets 120 and 230 can be prevented from leakage of magnetic fields by providing the first and second magnets 230 and 232 at the portions not facing each other. That is, the first and second magnets 230 and 230 may have the first and second magnets 230 and 232, respectively. The first and second magnets 230 and 230 may have a first polarity 120a and a second polarity 230b. As a result, the power generation efficiency by the first magnet 120 and the second magnet 230 can be maximized.

FIG. 2 is a front view showing an example of a self-generating device applied to a disk brake according to a first embodiment of the present invention, and FIG. 3 is a front view of a self-powered device applied to a disk brake according to a first embodiment of the present invention And is a front view showing another example.

For example, as shown in FIG. 2, the insertion groove 102 and the first magnet 120 may be formed in a ring shape.

Alternatively, as shown in FIG. 3, a plurality of insertion grooves 102 may be formed concentrically with the circumference of the disc 100 so as to be spaced apart from each other by a predetermined distance. A plurality of first magnets 120 may be inserted into the insertion grooves 102, respectively.

Hereinafter, the operation of the self-generating device applied to the brake of the disc 100 according to the first embodiment of the present invention will be described.

First, as the vehicle moves, the disc 100 brake is rotated, and the first magnet 120 disposed on the disc brake is also rotated.

At this time, the relative position of the first magnet 120 and the second magnet 230 is continuously changed according to the rotation of the first magnet 120, and a change of the magnetic field occurs around the second magnet 230 have.

A current may be induced in the electricity generating unit 240 according to the change of the magnetic field to produce electricity. The electricity generated by the electricity generating unit 240 may be transferred to a battery and stored, and the stored electricity may be used for movement of an automobile or operation of an electric apparatus provided in the automobile.

The configuration and operation of the self-generating device applied to the disc brake according to the first embodiment of the present invention have been described above.

Hereinafter, a self-generating device applied to a disc brake according to a second embodiment of the present invention will be described with reference to FIG.

4 is a cross-sectional view showing a disc brake according to a second embodiment of the present invention.

4, the self-power generation apparatus applied to the disc brake of this embodiment includes a first magnet 120, a second magnet 230, and an electricity generation unit 240. [

Here, since the first magnet 120, the second magnet 230, and the electricity generating part 240 are the same as those of the first embodiment of the present invention except for the positions in which they are disposed, description of the same parts will be omitted.

However, as shown in FIG. 4, the first magnet 120 may be disposed on the outer circumferential surface of the disc 100 in this embodiment. The second magnet 230 may be installed in a receiving groove 202 formed in the caliper housing 200 at a portion facing the outer circumferential surface of the disc 100.

Although not shown in the drawings, the insertion groove 102 and the first magnet 120 may be formed in the shape of a ring as in the first embodiment of the present invention, A plurality of insertion grooves 102 may be formed so as to be spaced apart from each other and a first magnet 120 may be inserted into each insertion groove 102.

In this case, the electricity generating unit 240 may be disposed between the first magnet 120 and the second magnet 230, and may be installed across the receiving recess 202 formed in the caliper housing 200. That is, both ends of the electricity generating part 240 may be fixed to the facing surfaces of the receiving grooves 202.

Accordingly, the first magnet 120, the second magnet 230, and the electricity generating unit 240 may not be affected by the rotation of the disk 100.

The operation of the self-power generation apparatus applied to the disc brake of the present embodiment is the same as that of the first embodiment, and a description thereof will be omitted.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

100: Disk 102: Insert groove
110: wheel shaft 120: first magnet
122: car frame 200: caliper housing
202: receiving groove 210: brake pad
220: Hydraulic device 230: Second magnet
232: Chipper 240: Electric generating part

Claims (11)

A first magnet disposed on a circular plate shaped disk coupled with a wheel shaft of the automobile and rotating together with the wheel shaft, the first magnet being disposed on a concentric circle with the disk and rotating together with the disk;
And a hydraulic pressure device for restricting the rotation of the disc is installed in close contact with the brake pad of the automobile so as to face the first magnet on one side of the caliper housing A second magnet; And
An electricity generator disposed between the first magnet and the second magnet to generate electricity induced by a change in magnetic field due to rotation of the first magnet;
And a control unit for controlling the operation of the disc brake. The method according to claim 1,
Wherein the first magnet is disposed on a plane of the disk. The method according to claim 1,
Wherein the first magnet comprises:
Wherein the brake is disposed at a position other than a portion in contact with the brake pad when the driver depresses the brake. The method according to claim 1,
Wherein the first magnet is disposed on an outer circumferential surface of the disk. 5. The method of claim 4,
Wherein the electricity generating unit comprises:
And wherein the main brake is disposed across the receiving groove formed in the caliper housing. The method according to claim 2 or 4,
In the disk,
Wherein a ring-shaped insertion groove is formed in the insertion groove, and the ring-shaped first magnet corresponding to the insertion groove is inserted into the insertion groove. The method according to claim 2 or 4,
In the disk,
Wherein a plurality of insertion grooves spaced apart from each other by a predetermined distance are formed, and a first magnet is inserted into each of the insertion grooves. The method according to claim 1,
Wherein the first magnet comprises:
Wherein the portion fixed to the disk has a first polarity and the portion facing the second magnet has a second polarity different from the first polarity. Self-generating device applied to disc brakes. 9. The method of claim 8,
Wherein the second magnet comprises:
Wherein the portion facing the first magnet has a first polarity different from the second polarity and the portion fixed to the caliper housing is a permanent magnet magnetized in a vertical lamination structure so as to have a second polarity, Self-generating device applied to disc brakes. 10. The method of claim 9,
Wherein the magnetic forces of the first magnet and the second magnet are equal to each other. The method according to claim 1,
Wherein a shielding portion is provided at a portion of the first magnet and the second magnet not facing each other to prevent leakage of a magnetic field.

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