KR20010001627A - Self charging type electric vehicle - Google Patents

Abstract

PURPOSE: A self charge type electric vehicle is provided to obtain a driving force necessary for a travel by mounting a generator to a rear wheel of a vehicle, charging an electric energy produced in the generator in a battery, and driving a motor. CONSTITUTION: A motor(4) is rotated by an eclectic energy. A speed reducer increases a torque generated in the motor(4). A differential device(2) transfers a driving force of the motor(4) increased by the speed reducer to a front wheel of an electric vehicle through a shaft(10). A generator(30) is adhered to a rear torsion beam(40) and integrally rotates with a brake drum(66) to generate an electricity. The generator(30) is formed at a bracket. The bracket is formed at the torque beam(40) through a mounting hole. The mounting hole is formed at a flange. A battery(92) receives an electric energy produced in the generator(30) through a controller(94). A power saving power supply supplies an electricity stored in the battery to the motor.

Description

Self Rechargeable Electric Vehicle {SELF CHARGING TYPE ELECTRIC VEHICLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-charging electric vehicle, and more particularly, by mounting a generator on a rear wheel of a vehicle and then charging a battery with electric energy generated by the generator to drive a motor, thereby obtaining driving force necessary for driving. It relates to a self-charging electric vehicle.

In general, internal combustion engines, including gasoline engines that are frequently used in automobile engines, burn fuel in a cylinder and use thermal energy generated at this time as power. In such an internal combustion engine, the exhaust gas discharged after combustion contains harmful components such as nitrogen oxides due to combustion and carbon monoxide and hydrocarbons due to incomplete combustion, thereby polluting the atmosphere.

Due to such environmental pollution and depletion of fossil fuels, researches on automobile engines using alternative energy are being actively conducted in each country. Currently, electric vehicles that drive vehicles by using electric energy among vehicles using alternative energy have the highest possibility of practical use. The electric vehicle rotates the motor by electricity supplied from the battery instead of the fuel of the gasoline engine, and decelerates the rotational force of the motor generated by the reducer, and then transmits it to the left and right driving wheels through a differential device. It has a structure that enables running of.

That is, the structure of a conventional electric vehicle will be briefly described. A motor that is a power source corresponding to a gasoline engine, a battery for supplying electricity to the motor, a speed reducer for increasing driving torque by power generated from the motor, The transmission consists of a transmission that shifts the increased drive torque to the differential.

Since a conventional electric vehicle having such a configuration does not have a separate self-charging device, it is necessary to mount a large amount of batteries for long driving, thereby increasing the weight of the entire vehicle. In addition, the distance that can be driven by a single charge is limited, so it is difficult to travel long distance and takes a long time to charge once. In addition, since charging stations for charging electricity are not yet installed in the battery, commercialization of electric vehicles is not practical, and it is used only for special purposes in low-speed vehicles in limited areas.

The present invention devised to solve such a problem is equipped with a generator capable of continuously generating electrical energy to the front and rear wheels of the vehicle, it is possible to operate a long distance by always keeping the battery in a charged state when driving Its purpose is to provide a self-charging electric vehicle that can be commercialized since it does not require a charging station and does not require much charging time.

1 is a schematic view showing a power generation system of an electric vehicle according to the present invention;

Figure 2 is a perspective view showing the configuration of a generator employed in the electric vehicle of the present invention,

3 is a cross-sectional view showing a mounting state of a generator employed in the electric vehicle of the present invention.

♣ Explanation of symbols for main part of drawing ♣

2: Differential device 4: Motor

5: reducer 10: drive shaft

20: generator case 30: generator

32: generator shaft 40: torsion beam

50: spindle 66: brake drum

An object of the present invention described above is a motor rotated by electric energy, a speed reducer for increasing torque generated by the motor, a differential device for transmitting the driving force of the motor increased through the reducer to the front wheel through the drive shaft, and the rear. A generator that is attached to the torsion beam and rotates integrally with the brake drum to generate electricity, a battery into which the electric energy generated by the generator flows through the controller, and an uninterruptible power supply that supplies electricity accumulated in the battery to the motor. It is achieved by a self-charging electric vehicle, characterized in that consisting of.

Hereinafter, a self-charging electric vehicle according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

1 is a configuration diagram schematically showing a power generation system of an electric vehicle according to the present invention, Figure 2 is a perspective view showing the mounting state of the generator employed in the electric vehicle of the present invention, respectively, Figure 3 is the electric of the present invention This is a sectional view showing the installation state of the generator employed in the vehicle.

First, as shown in Figure 1, when the overall configuration of the electric vehicle according to the present invention, the motor 4 and the torque generated by the torque generating torque to increase the torque generated by the motor 4 to the differential device 2 The speed reducer 5, the generator 30 to obtain electrical energy, the generator case 20 which protects rainwater and the like from entering the generator 30, and a battery that stores electricity generated by the generator 30 ( 92 and an uninterruptible power supply 100 for stably supplying electricity of the battery 92 to the motor 4. A plurality of batteries 92 are installed in the battery plate 90. The uninterruptible power supply 100 is connected to another battery 92 as soon as one of the plurality of batteries (92) is discharged to serve to stably supply electricity to the motor (4).

Among them, the motor 4 is rotated by the electric energy supplied from the battery 92, and the torque generated in the motor 4 is increased by the reducer 5 and then transmitted to the differential device 2. . The drive shaft 10 is rotatably mounted to the differential device 2. These motors 4, reducers 5 and differentials 2 have the same construction as those used for conventional electric vehicles, and detailed descriptions and illustrations thereof are omitted.

The electricity generated by the generator 30 is sent to the battery 92 in a state of being maintained at a constant voltage via the controller 94. Therefore, when the driver turns the normal key switch to the on state, the electricity stored in the battery 92 is supplied to the motor 4, and the electricity supplied to the motor 4 is reduced with the speed reducer 5 and the differential device ( 2) is transmitted to the drive shaft 10 by the east, it is possible to drive the vehicle.

In addition to the shock absorber 64, the torsion beam 40 is fixed with the back plate 60 on which the brake shoes 62 and the like are installed, and the spindle 50 on which the brake drum 66 is rotatably mounted. . Generator 30 of the present invention to generate electricity while rotating with the rear wheel (TR) is fixed to the torsion beam 40, this generator 30 to prevent overheating of the generator 30 during high-speed driving and inflow of rain water Generator case 20 is installed to prevent the. The generator case 20 is provided with an inlet tube 24 and an outlet tube 26 to enable the cooling of the generator 30 and to block the inflow of rainwater by blocking the outside and the generator. The generator 30 is disposed in the inner space 22 of the generator case 20 during assembly.

Next, as shown in FIGS. 2 and 3, the generator 30 of the present invention is mounted to the torsion beam 40 opposite the spindle 50. To this end, a through-hole 58 through which the generator shaft 32 of the generator 30 penetrates is formed in the spindle 50. A screw 32-1 is formed in the generator shaft 32, and the intermediate shaft 32-2 is fastened to the screw 32-1. A fastening hole 32-2a is formed in the intermediate shaft 32-2, and is coupled to the first universal joint 32-4 by the bolt 48 at the time of assembly. The first universal joint 32-4 is coupled to the second universal joint 32-5 by pins 32-4b and 32-5b to enable power transmission even in a state inclined at a predetermined angle. An extension shaft 32-2 is fastened to the second universal joint 32-5, and a serration 32-3a is formed at an end of the extension shaft 32-3.

This serration 32-3a is rotatably mounted to the brake drum 66 via the gear 80. At this time, the serration 32-3a is engaged with the serration 82 formed in the gear 80, and the teeth 84 formed on the outer circumference of the gear 80 are extended to the extension 68 of the drum 66. Engagement with the formed ring gear 68 'makes it possible to transmit the rotational force of the brake drum 66 to the motor shaft 32.

In assembly, the flange 34 of the generator 30 is in close contact with the bracket 44 attached to the torsion beam 40. Therefore, the mounting holes 34a formed in the generator flange 34 are fixed to the mounting holes 46 formed in the bracket 44, and then bolts 49 are inserted into these holes 34a and 46 to fix them.

The torsion beam 40 is formed with a through hole 42 through which the generator shaft 32 penetrates. The torsion beam 40 has a back plate 60 on which the brake shoe 62 is mounted to face the generator 30. ) Is fixed. The back plate 60 is formed with a hole 63 to which the spindle 60 is fixed, and fixes the spindle 50 to the back plate 60 with bolts 54 during assembly.

The brake drum 66, which is rotatably mounted to the spindle 50 by a plurality of oil seals 72, 76 and bearings 70, 74, is formed with an extension 68 extending outwardly. A ring gear 68 'is formed on the inner wall of the portion 68. A tooth 84 formed in the outer circumferential portion of the gear 80 is engaged with the ring gear 68 'so that the brake drum 66 and the generator shaft 32 rotate integrally.

In the spindle 50 employed in the present invention, a mounting hole 57a into which the generator shaft 32 of the generator 30 is inserted and fixed is formed, and a screw 57 to which the nut 78 is fastened is formed on the outer circumferential surface thereof. It is. As described above, the generator shaft 32 of the generator 30 is provided with the universal joints 32-4 and 32-5 to enable power generation even by vibration generated during driving. For the purpose of illustration, FIG. 3 schematically shows the connection state of the universal joints 32-4 and 32-5.

When the brake drum 66 is rotated together with the rear wheel TR while the vehicle is running, the rotational force of the brake drum 66 is transmitted through the gear 80 and the universal joints 32-4 and 32-5 to the generator shaft 32. By passing through), generator 30 starts normal power generation. At this time, since the internal configuration of the generator 30 is the same as the conventional one, it is not shown in detail. The electricity generated according to the rotation of the generator shaft 32 is supplied to the battery 92 in a state maintained at a constant voltage through the controller 94, the electricity introduced into the battery 92 is a power-saving power supply (100) It is supplied to the motor 4 via.

In the above-described preferred embodiment of the present invention, the vehicle of the front wheel driving method is illustrated, but the structure of the present invention can be applied to the rear wheel driving method. In this case, a generator may be installed on the front wheel, and the motor and the reducer may be disposed on the rear wheel side. In addition, the battery capacity can be varied according to the charging capacity of the generator, and if necessary, an appropriate voltage can be obtained by connecting and using a plurality of batteries.

According to the present invention described above, by mounting a generator capable of continuously generating electrical energy to the rear wheel of the vehicle, it is possible to operate a long distance while keeping the battery in a charged state at all times during driving. Therefore, when the self-charging is completed, a separate charging station is not necessary, and does not require much time for charging. In addition, if the self-generating device of the present invention is installed in a vehicle that is limited by the power generation capacity of the generator or the capacity of the battery, the range of operation is increased and the number of charges is increased because the use time of the battery can be extended due to self-generation. As a result, the commercialization of electric vehicles is possible.

Claims (2)

A motor 4 rotated by electric energy, A reducer 5 for increasing torque generated by the motor 4; A differential device 2 for transmitting the driving force of the motor 4 increased through the speed reducer 5 to the front wheel TF through the drive shaft 10, A generator 30 attached to the rear torsion beam 40 and generating electricity while integrally rotating with the brake drum 66; A battery 92 into which electrical energy generated by the generator 30 is introduced via the controller 94; Self-charging electric vehicle, characterized in that consisting of a power-saving power supply 100 for supplying the electricity accumulated in the battery (92) to the motor (4). The method of claim 1, The generator 30 is fixed to the bracket 44 formed in the torsion beam 40 through the mounting hole (34a) formed in the flange 34, the generator shaft 32 via the gear 80 brake drum ( Self-charging electric vehicle, characterized in that it is mounted so that it can rotate with the ring gear (68 ') formed in the extension (68) of the 66.