KR20180115963A - A charging equipment of an electric car - Google Patents

Abstract

A charging device for an electric vehicle according to the present invention includes: a charging control unit including a charging management module for checking an amount of electricity used and the like; a charger body housing including the charging control unit therein; a charging cable for receiving electric energy from the charging control unit and supplying the electric energy to the electric vehicle; and a suspension means for pulling the charging cable in a charging process and pulling and suspending the pulled charging cable to an original position when the charging process is completed, by a user. The device can prevent the charging cable from being damaged by positioning the charging cable to a suspension state.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging apparatus for an electric vehicle and, more particularly, to an electric vehicle charging apparatus for charging electric energy to an electric car, And more particularly, to a car charging apparatus.

Since a gasoline engine or a diesel engine is powered by gasoline or diesel, the nitrogen oxide, including particulates, is released to the atmosphere while the fossil fuel is burning.

These substances are released into the atmosphere and become the main cause of air pollution. Such air pollution is known to generate fine dust.

Since the operation of fossil fueled automobiles generates fine dust, other types of automobiles that do not use fossil fuels are being researched and developed.

Typical automobiles include hybrid vehicles, electric vehicles and fuel cell vehicles.

Among the above vehicles, electric vehicles do not emit any pollutants during the operation of automobiles.

However, electric vehicles use electric energy as driving energy, so they are equipped with a driving battery capable of supplying and storing electric energy from the outside.

A driving motor is driven by using the electric energy charged in the driving battery, and a driving force is transmitted to the wheel through the transmission to drive the vehicle.

If all of the electric energy stored in the driving battery is used, there is no energy to drive the driving motor. Therefore, the electric vehicle can not travel, so that charging means capable of charging electric energy is required.

As means for charging electric vehicles with electric energy, it is necessary to have a system that can use electricity from each household, or to install a charger in a public housing location, a roadside or other necessary place.

Any charging means requires a charging gun to connect with the charger, and a charging cable is required to connect the charging gun to the charger.

The charging cable has an elongated state when charging the electric vehicle with electric energy, and the charging cable that has been elongated should be returned to its original state when charging is completed.

Korean Unexamined Patent Publication No. 10-1372784 discloses a device for winding and uncoiling a charging cable from a bobbin by winding a charging cable around a bobbin and rotating the bobbin using a motor.

However, there are a fast charging method and a full charging method in which an electric vehicle is charged with electric energy. In any method, a charging gun connected to a charging cable to be used and a charging connector to which the charging gun is connected include a plurality of pins Structure. Charging cable used in rapid charging system becomes thicker.

Therefore, the charging cable is connected to each of the pins, and a plurality of independent electric wires for supplying electric energy are used, and these electric wires are integrally covered to constitute a charging cable.

If an external force is applied to the charging cable, such as charging a charging cable having such a structure to a bobbin, the charging cable may be damaged. In the case of the quick charging cable, the charging cable is too thick to be wound around the bobbin. In order to wind such a thick charging cable around the bobbin, it is practically impossible to increase the diameter of the bobbin.

In addition, winding and unplugging the charging cable to the bobbin may damage the charging cable, and damage to the charging cable can cause unexpected safety hazards, including electric shock.

Korean Registered Patent No. 10-1372784 entitled "

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a battery charger capable of extending a charging cable when charging without sensing a charging cable to a bobbin, So that the charging cable can be prevented from being damaged, and a charging cable of a sufficient length can be used.

In order to achieve the above object, according to the present invention,

A charge control unit having a charge management module for checking an amount of electricity used;

A charger body housing housing the charge control unit;

A charging cable that receives electric energy from the charging control unit and supplies the electric energy to the electric vehicle;

And a suspension means capable of being elastically pulled from the suspended state when the charging cable is charged and pulling the drawn charging cable to its original position when the charging is completed.

Wherein said suspending means comprises:

motor;

First and second pulleys installed on a driving shaft of the motor and rotating together;

A pull string wound on the first pulley and having an outer end connected to the fill cable to pull out the fill cable from the first pulley;

And a control rod wound on one end of the second pulley and connected to elastic means on the other end to transmit an elastic force in a direction opposite to the direction of unwinding of the first pulley.

      Wherein the elastic means comprises:

      housing;

A reel rotatably installed in the housing;

And a spring spring fixed at one end to a spring fixing shaft fixed to the housing and having a second end fixed to an inner circumferential surface of the reel to elastically support the reel in a rotating direction.

The electric energy charging device according to the present invention is not only easy to use because it can sort the charging cable into the use state and the non-use state through the charging cable suspending means, The charging cable can be placed in a suspended state to prevent the charging cable from being damaged, and a charging cable having a sufficient length can be used.

FIG. 1 is a perspective view showing the external appearance of a charging apparatus for an electric vehicle according to an embodiment of the present invention, in which a charging cable is suspended when not charged.
2 is a view for explaining a control unit which can be included in the charging apparatus of the present invention.
3 is a perspective view showing an appearance of an elastic means of a charging apparatus for an electric vehicle according to an embodiment of the present invention.
4 is a perspective view showing the interior of the elastic means of the charging apparatus for an electric vehicle according to the embodiment of the present invention.
Fig. 5 is a cross-sectional view of a main portion side of a suspension means of an electric vehicle charging apparatus according to an embodiment of the present invention. Fig.
6 is a front view of an elastic force adjusting means of an electric vehicle charging apparatus according to an embodiment of the present invention.
FIG. 7 is a perspective view showing an external appearance of a charging apparatus for an electric vehicle according to an embodiment of the present invention, and shows a state when a user pulls the charging gun for charging.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Fig. 1, the charging apparatus 2 according to the present invention includes a housing 4 standing upright on the ground.

A control unit 6 incorporated in the housing 4 and a charging cable 10 having a charging gun 8 used as means for supplying electric energy to the electric vehicle under the control of the control unit 6 do.

2, the control unit 6 provided inside the housing 4 includes a charger display part 12 for displaying a charging state or the like during charging, a charger storage part 14 for storing a charging time or a charging amount, A charger control part 16 for controlling the entire charging state of the electric vehicle, and the like, can be integrated into a unit.

In the present invention, the control unit 6 can use a control technique generally used in this field or a similar technology, and thus a detailed description thereof will be omitted.

The housing 4 has a base portion 18 formed at a relatively lower side to facilitate fixing to the ground and a body portion 20 is formed extending from the base portion 18 to a predetermined height, The head portion 22 may be formed on the upper side of the portion 20.

The head portion 22 may be formed with at least one charging cable suspending means 24.

The charging cable suspending means 24 is provided on both sides of the head portion 22 of the body portion 20 so that two electric vehicles can be charged by one charging device.

1, the charging cable suspending means 24 includes a driving motor 26 and a first pulley 28 (hereinafter, referred to as " first pulley 28 ") which is installed at a predetermined interval from the driving shaft 27 of the driving motor 26 and rotates And a pulling string 32 which is wound on the first pulley 28 and wound or unwound in the direction of rotation when the first pulley is rotated and connected to the charging cable 10 .

Since the pulling string 32 suspends the charging cable 10, the pulling string 32 must have a strength that does not increase due to the weight of the charging cable 10.

The first pulley 28 is rotated in the releasing direction by the weight of the charging cable 10 in a state where the driving motor 26 is not driven substantially so that the pulling string 32 may be loosened So that the first pulley 28 is rotated in the unwinding direction only when a certain force or more acts on the pulling string 32. [

The elastic means 34 provided by the present embodiment is connected to the second pulley 30 so as to restrain the free pulley 28 from rotating in the loosening direction of the first pulley 28 installed together with the drive shaft 27, So that the first pulley 28 can be rotated in the unwinding direction.

The elastic means 34 includes a case 36 fixed to the inside of the housing 4 as shown in FIGS.

The case 36 has a substantially rectangular parallelepiped shape and is provided with a shaft 38 passing through the inner space portion thereof.

A spring 40 is provided on the outside of the shaft 38 and a reel 42 is provided on the outside of the spring 40.

The inner end of the spring 40 is fixed to the shaft 38 and the outer end of the spring 40 is fixed to the reel 42 in this embodiment.

With this configuration, the reel 42 will rotate only when an external force greater than the elastic force of the spring 40 is applied.

The control rod 44 is wound on the outer periphery of the reel 42 and the other end of the control rod 44 is wound on the second pulley 30 so that the reel 42 and the second pulley 30 So that they have an interlocking relationship.

In addition, at one end of the shaft 38, a means 46 for adjusting the elastic force of the spring 40 may be provided.

In this embodiment, the means for adjusting the elastic force 46 comprises a wheel 48 mounted on the shaft 38 and rotatably mounted on the shaft 38, And a stopper (50) for restricting the stopper (50). The elastic force of the spring 40 can be adjusted by forming a groove 39 in the shaft 38 and inserting a separate tool into the groove 39 and rotating the shaft.

The wheel 48 has a plurality of hooks 52 on the outer circumferential surface thereof and the stopper 50 forms a hook 54 on which the hooks 52 can be hooked.

A hook 56 for fixing the charging gun 8 may be appropriately installed on a side surface of the body of the hood 4.

1, when the charging gun 8 is hooked on the hook 56 and the pulling string 32 is engaged with the first pulley 32, The middle portion of the charging cable 10 is hanged up to the head portion 22 of the housing 4. [

In this state, since the charging cable 10 is suspended from the head portion 22, the charging cable 10 is not hanged on the ground as shown in FIG.

In order to charge the electric energy in such a non-charged state, the charging gun 8 provided at the end of the charging cable 10 in the housing 4 is separated from the hook 56, Charging starts when connected to the charging socket.

In the charging process of the present invention, the user holds the charging gun 8 by hand and pulls the charging cable 10 toward the automobile to charge the electric energy. At this time, as the charging cable 10 is pulled, .

At this time, the pulling string 32 connected to the charging cable 10 is released from the first pulley 28, and the charging cable 10 can be moved to a desired position.

The first pulley 28 is installed on the drive shaft 27 together with the second pulley 30 so that the first pulley 28 is slowly rotated by the action of the elastic means 34 As a result, the pulling string 32 is gradually released, so that even if the charging cable 10 is pulled by the user, the pulling string 32 can not be released suddenly, so that the filling operation can be performed stably.

That is, since the elastic means 34 applies the elastic force in the rotating direction of the reel 42 while the spring 40 is positioned inside the reel 42, the control rod 44 wound on the reel 42, This is because the reel 42 can be rotated only when a force for exerting the elastic force of the spring 40 is applied. This action can eliminate the concern that the charging cable 10 connected to the charging device can be separated from the charging device.

After the charging of the electric energy is completed, if the user removes the charging gun 8 from the charging socket (not shown) of the electric vehicle and drives the driving motor 26, the driving shaft 27 rotates and the first pulley 28 So that the pulling string 32 released is started to be wound on the first pulley 28 while the charging cable 10 is pulled up by the action of the charging cable suspending means 24 and can be maintained in a suspended state .

When the pulling string 32 is wound on the first pulley 28 as described above, the charging cable 10 can be suspended on the head portion 22 side of the housing 4 as shown in FIG. At this time, the operation of the drive motor 26 may be interrupted. The driving of the driving motor 26 may be controlled by the control unit 6 or may be manually performed by an operator turning on and off a switch (not shown). The control method of the driving motor may be variously carried out by a well-known method.

At this time, the restoring force of the spring 40 is added to the rotation direction of the second pulley 30 while the spring 40 of the elastic means 34 is unwound from the original state, The elastic force of the elastic spring 34 of the elastic means 34 can be adjusted by the self weight of the charging cable 10 when the driving motor 26 is stopped in the state where the charging cable 10 is in the state of Fig. It is possible to prevent striking.

That is, the state of FIG. 1 can be maintained in a state in which the drive of the drive motor 26 is stopped when no electric energy is charged.

The elastic force of the spring 40 of the elastic means 34 is transmitted to the drive shaft 27 through the control rod 44 to restrict the rotation of the first pulley 28, This is because the pulling string 32 is not released.

The elastic means 34 adjusts the elastic force of the spring 40 so as to facilitate the use of the spring 40. In this embodiment, the elastic force of the spring 40 is adjusted by rotating the shaft 38 have.

That is, when the shaft 38 is rotated by inserting a driver or other tool into the groove 39 formed in the shaft 38, the inner end of the spring 40 is fixed to the shaft 38, The elastic member 40 will be wound along the direction of rotation of the shaft 38, and the elastic force will become large or the elastic force will become small while being released.

The spring 38 of the stopper 50 is caught by the hook 50 of the stopper 50 when the elastic force is controlled so that the elasticity of the spring 40 can be maintained .

The adjustment of the elastic force of the elastic means 34 not only prevents the charging cable 10 from being stuck in the state of FIG. 1 but also gives a certain degree of resistance when pulled to the state of FIG. 7, It can prevent coming.

In particular, when the charging cable 10 is suspended and stored as shown in FIG. 1, the charging cable is folded several times, so that the charging cable 10 can be formed longer.

2; Charging device
4; housing
6; The control unit
8; Charging gun
10; Charging cable
24; Charging cable Suspension means
26; Drive motor
27; driving axle
29; The first pulley
30; The second pulley
32; Pull
34; Elastic means
38; shaft

Claims (6)

A charge control unit having a charge management module for checking an amount of electricity used;
A charger body housing housing the charge control unit;
A charging cable that receives electric energy from the charging control unit and supplies the electric energy to the electric vehicle;
And a suspension means capable of being elastically pulled from the suspended state when the charging cable is charged and pulling the pulled charging cable to its original position when the charging is completed. The method according to claim 1,
Wherein said suspending means comprises:
motor;
First and second pulleys installed on a driving shaft of the motor and rotating together;
A pull string wound on the first pulley and having an outer end connected to the fill cable to pull out the fill cable from the first pulley;
And a control rod which is wound around the second pulley and whose other end is connected to the elastic means to transmit an elastic force in a direction opposite to the unwinding rotational direction of the first pulley. The method of claim 2,
Said resilient means comprising: a housing;
A reel rotatably installed in the housing;
And a spring spring fixed at one end to a spring fixing shaft fixed to the housing and having an opposite end fixed to an inner circumferential surface of the reel to elastically support the reel in a rotating direction. The method of claim 2,
Wherein the elastic means is provided with means for adjusting the elastic force. The method of claim 5,
Wherein the elastic means includes a latching rotation member provided on the spring fixing shaft to which an inner end of the spring winding spring is fixed and a stopper for preventing rotation of the latching rotation member. The method of claim 5,
Wherein the stopper is rotatably mounted on the housing to suppress rotation of the latching member in any one direction.

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