KR20100046906A - Battery charging system for electric vehicle - Google Patents

Abstract

PURPOSE: A battery charging system for a vehicle is provided to prevent a crime by automatically disconnecting the charging supply of a robbed vehicle. CONSTITUTION: A battery charger supplies proper charging power according to an electric vehicle. A connecter main body for charging(104a) is electrically connected to the battery charger. The connector main body for charging is selectively contact with a battery for driving a drive motor of the electric vehicle. A charge contact unit(104b) is installed in an outside of the connecter main body for charging. The charge contact unit is electrically contact with the battery. The charging state displaying unit is installed in the inner side of the connecter main body for charging. A connecter for charging comprises an on/off switching unit(104d) which selectively supplies charging power source from the battery charger to the charge contact unit.

Description

Battery charging system for electric vehicle

The present invention relates to a battery charging system for an electric vehicle.

In general, electric vehicles are equipped with a battery that is a power source for driving a drive motor to self-charge the battery using power in the vehicle with electric energy.

Recently, an improved battery charging system for an electric vehicle that can efficiently check a state of charge of a battery mounted on an electric vehicle and increase charging efficiency has been continuously studied.

SUMMARY OF THE INVENTION An object of the present invention is to provide a battery charging system for an electric vehicle that can increase the charging efficiency because the state of charge can be efficiently confirmed using a wireless communication method or a wired communication method.

Another object of the present invention is to provide a battery charging system for an electric vehicle that can assist in the criminal arrest since the supply of charges to the stolen vehicle is automatically stopped.

In order to achieve the above object, the present invention provides a charging connector body electrically connected to a charger for supplying proper charging power according to an electric vehicle, and having a shape such that the battery is selectively contacted with a battery for driving a driving motor of the electric vehicle. A charging state mounted on an outer side of the charging connector body to be in electrical contact with the battery; a charging state mounted on the inner side of the charging connector body and electrically connected to the charging contact unit to indicate a charging state when the battery is being charged. And a charging connector including a display unit and a charging on / off switching unit mounted on an outer side of the charging connector body and spaced apart from the charging contact unit, and selectively supplying charging power from the charger to the charging contact unit. .

According to another feature of the invention, the charging contact is mounted to the front end of the charging connector body, it characterized in that it is electrically connected to the battery including a (+) terminal pin and a (-) terminal pin.

According to another feature of the invention, it is mounted on one side of the charging connector body, one side of the battery and one side of the charger to recognize the charging power of the battery required according to the electric vehicle to automatically supply the appropriate charging power from the charger It further comprises a setting unit.

According to another feature of the invention, the automatic charging setting unit is mounted on the inside or outside of the battery to output the current remaining charging power of the battery and the first automatic charging setting means, mounted on the inside or outside of the charging connector body A second automatic charging setting means for communicating with the automatic charging setting means, the second automatic charging setting means for recognizing the first automatic charging setting means and outputting the charging power required by the battery, and mounted inside or outside of the charger, And third automatic charging setting means for communicating with the charging contact portion as much as the charging power of the battery required by the second automatic charging setting means.

According to another feature of the invention, the first automatic charge setting means and the second automatic charge setting means are characterized in that they perform wireless communication with each other.

According to another feature of the invention, the wireless communication is characterized in that using the Radio Frequency Identification (RFID) method.

According to another feature of the present invention, the second automatic charge setting means and the third automatic charge setting means are characterized in that they perform any one of wireless communication or wired communication with each other.

According to another feature of the invention, the wireless communication is characterized by using any one or two or more of the Bluetooth method, Wi-Fi method, Zigbee method.

According to another feature of the present invention, the charge status display unit receives a battery status signal from a CAN (Controller Area Network) communication module and a CAN communication module that communicates with a battery management system (BMS) module mounted in an electric vehicle It includes a display window to display the current remaining charge of the display or to receive the charge power signal required for the battery from the charger to display the charge being charged in the battery.

According to another feature of the present invention, the charger and the charging connector is arranged to be spaced apart from each other, the charge status display unit for communicating with the BMS (Battery Management System) module mounted on the electric vehicle to observe the charging state further Include.

According to another feature of the present invention, any one of the charging state observer and the charge state display unit or the charge state observer and the BMS module performs wireless communication with each other, but any one of the Bluetooth method, Wi-Fi method, Zigbee method Or using more than one method.

According to another feature of the present invention, the charging state observation unit receives and manages the code of the unique authentication number corresponding to the electric vehicle from the battery management system (BMS) module, the charge on / It is characterized in that the operation of the off switching unit is turned off.

According to another feature of the invention, the unauthorized number is characterized in that the stolen vehicle number.

According to the battery charging system for an electric vehicle of the present invention made as described above, the following effects can be obtained.

First, since the state of charge can be efficiently checked using a wireless communication method or a wired communication method, the charging efficiency can be increased.

Second, the stolen vehicle automatically stops the charging supply, which has another effect of contributing to criminal arrest.

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

<Example>

1 is a block diagram showing a battery charging system for an electric vehicle according to an embodiment of the present invention, Figure 2 is a side view showing the connector for charging shown in FIG.

1 and 2, a battery charging system 100 for an electric vehicle according to an embodiment of the present invention includes a charger 102, a charging connector 104, and the like.

The charger 102 is provided to supply proper charging power according to the electric vehicle 101, and the charging connector 104 is electrically connected to the charger 102 so that the battery 101a of the electric vehicle 101 to be described later. ) May be provided to selectively contact with

More specifically, as shown in FIG. 1, the charging connector 104 includes a charging connector body 104a, a charging contacting part 104b, a charging status display part 104c, and a charging on / off switching part 104d. And the like.

The charging connector body 104a has a predetermined shape and is electrically connected to the charger 102 so as to selectively contact the battery 101a for driving a driving motor (not shown) of the electric vehicle 101. .

The charging contact 104b is mounted outside the charging connector body 104a to be in electrical contact with the battery 101a.

Here, the charging contact portion 104b is attached to the tip of the charging connector body 104a and may include a (+) terminal pin 104b ₁ , a (-) terminal pin 104b ₂ , and the like.

That is, the (+) terminal pin 104b ₁ is electrically connected to the (+) terminal of the battery 101a, and the (-) terminal pin 104b ₂ is electrically connected to the (-) terminal of the battery 101a. There is a number.

In this case, the (+) terminal pin 104b ₁ and the (-) terminal pin 104b ₂ are not in contact with the (+) terminal and the (-) terminal of the battery 101a. The same predetermined connecting means (not shown) may be connected to the (+) terminal and the (-) terminal of the battery 101a.

The charging state display unit 104c is mounted inside the charging connector body 104a and is electrically connected to the charging contact unit 104b to display the charging state when the battery 101a is charged.

In this case, the charge state display unit 104c may include a controller area network (CAN) communication module 104c ₁ , a display window 104c ₂ , and the like.

CAN (Controller Area Network) communication module 104c ₁ may be provided to communicate with a Battery Management System (BMS) module 101b mounted in the electric vehicle 101.

At this time, the display window 104c ₂ receives the battery 101a status signal from the CAN communication module 104c ₁ to display the current remaining charge amount of the battery 101a, or is required by the battery 101a from the charger 102. It may be provided to display a charge amount being charged in the battery 101a by receiving a charging power signal.

The charging on / off switching unit 104d is mounted to the outside of the charging connector body 104a and spaced apart from the charging contacting unit 104b, and charges the charging power from the charger 102 to the charging contacting unit 104b. It can be provided to selectively supply to.

On the other hand, it is mounted on one side of the charging connector body (104a), one side of the battery 101a and one side of the charger 102 to recognize the charging power of the battery 101a required according to the electric vehicle 101 charger ( The automatic charging setting unit 106 may be further included to supply an appropriate charging power from the 102.

More specifically, the automatic charge setting unit 106 may include a first automatic charge setting means 106a, a second automatic charge setting means 106b, a third automatic charge setting means 106c and the like.

The first automatic charge setting means 106a may be mounted inside or outside the battery 101a to output current remaining charging power of the battery 101a, and the second automatic charge setting means 106b is for charging. Mounted on the inner side or the outer side of the connector body 104a and in communication with the first automatic charging setting means 106a, but recognizing the first automatic charging setting means 106a to output the charging power required for the battery 101a. It can be provided.

Here, the first automatic charging setting means 106a and the second automatic charging setting means 106b communicate with each other wirelessly, but may use a radio frequency identification (RFID) scheme.

The third automatic charge setting means 106c is mounted inside or outside the charger 102 and communicates with the second automatic charge setting means 106b, but the battery required by the second automatic charge setting means 106b ( It can be provided to supply only the charging power of 101a to the charging contact 104b.

Here, the second automatic charge setting means 106b and the third automatic charge setting means 106c can perform any one of wireless communication or wired communication with each other.

At this time, the wireless communication may use any one or two or more of the Bluetooth method, Wi-Fi method, Zigbee method.

In addition, the charger 102 and the charging connector 104 is disposed so as to be spaced apart from each other, the charging state display unit 104c or the charging state to observe the state of charge by communicating with the BMS module 101b mounted on the electric vehicle 101 The observation unit 108 may further include.

Here, any one of the charge state observer 108 and the charge state display unit 104c or the charge state observer 108 and the BMS module 101b performs wireless communication with each other, but the bluetooth method, the Wi-Fi method, One or more of the Zigbee methods can be used.

At this time, the charging state observer 108 receives and manages the code of the unique authentication number corresponding to the electric vehicle 101 from the BMS module 101b, and the charging on / off switching in the case of the code of the unauthorized number It may be provided to turn off the operation of the unit 104d.

That is, the charging state observer 108 may be a control center or charging station center capable of observing the charging state, and the unauthorized number observed through the charging state observer 108 may be recognized as a stolen vehicle number and charged. Supply can also be stopped automatically.

As such, the battery charging system 100 for an electric vehicle according to an embodiment of the present invention can efficiently check the state of the charge amount using a wireless communication method or a wired communication method, thereby increasing charging efficiency.

In addition, the battery charging system 100 for an electric vehicle according to an embodiment of the present invention automatically stops the charging supply to the stolen vehicle, thereby contributing to criminal arrest.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

1 is a block diagram showing a battery charging system for an electric vehicle according to an embodiment of the present invention.

Figure 2 is a side view showing the connector for charging shown in FIG.

* Description of the main parts of the drawings *

100: battery charging system for an electric vehicle 102: charger

101: electric vehicle 101a: battery

101b: Battery Management System (BMS) module

104: charging connector 104a: charging connector body

104b: Charging contact part 104b ₁ : (+) terminal pin

104b ₂ : (-) terminal pin 104c: Charging status display

104c ₁ : Controller Area Network (CAN) Communication Module

104c ₂ : display window

104d: charging on / off switching unit 106: automatic charging setting unit

106a: first automatic charging setting means

106b: second automatic charging setting means

106c: third automatic charging setting means 108: charge state observation unit

Claims (13)

A charger for supplying proper charging power according to the electric vehicle; And A charging connector body electrically connected to the charger, the charging connector body having an outer shape to be in selective contact with a battery for driving a drive motor of the electric vehicle; A charging contact part mounted on an outer side of the charging connector body to be in electrical contact with the battery; A charging state display unit mounted inside the charging connector body and electrically connected to the charging contact unit to display a charging state when the battery is charged; A charging connector mounted on an outer side of the charging connector body and spaced apart from the charging contact part, the charging connector including a charging on / off switching unit selectively supplying charging power from the charger to the charging contact unit; Battery charging system for electric vehicles. The method of claim 1, The charging contact portion is mounted to the front end of the charging connector body and comprises a (+) terminal pin and a (-) terminal pin electrically connected to the battery, characterized in that the electric vehicle. The method according to claim 1 or 2, It is mounted on one side of the charging connector body, one side of the battery and one side of the charger further recognizes the charging power of the battery required according to the electric vehicle to further supply a suitable charging power from the charger Battery charging system for an electric vehicle comprising. The method of claim 3, The automatic charging setting unit, First automatic charging setting means mounted on an inside or an outside of the battery and outputting a current residual charging power of the battery; Second automatic charging setting means mounted on an inner side or an outer side of the charging connector body and communicating with the first automatic charging setting means, and recognizing the first automatic charging setting means to output charging power required by the battery; ; And A third automatic charge mounted inside or outside the charger and in communication with the second automatic charge setting means for supplying the charging contact to the charging contact as much as the charging power of the battery required by the second automatic charge setting means; A battery charging system for an electric vehicle comprising setting means. The method of claim 4, wherein And said first automatic charging setting means and said second automatic charging setting means perform wireless communication with each other. The method of claim 5, The wireless communication is a battery charging system for an electric vehicle, characterized in that using a Radio Frequency Identification (RFID) method. The method of claim 4, wherein And the second automatic charge setting means and the third automatic charge setting means communicate with each other by wireless communication or wired communication. The method of claim 7, wherein The wireless communication is an electric vehicle battery charging system, characterized in that using any one or two or more of the Bluetooth method, Wi-Fi method, Zigbee method. The method of claim 1, The charging state display unit, A controller area network (CAN) module for communicating with a battery management system (BMS) module mounted in the electric vehicle; And And a display window configured to receive a battery status signal from the CAN communication module to display a current remaining charge level of the battery or to receive a charging power signal required for the battery from the charger and to display a charge amount being charged in the battery. Battery charging system for electric vehicles. The method of claim 9, It is disposed so as to be spaced apart from the charger and the connector for charging, the electric vehicle further comprises a charge state observer for observing the state of charge by communicating with the charge state display unit or a battery management system (BMS) module mounted on the electric vehicle Battery charging system. The method of claim 9, The charging state observer and the charge state display unit or any one of the charge state observer and the BMS module performs a wireless communication with each other, each other using any one or two or more of the Bluetooth method, Wi-Fi method, Zigbee method Battery charging system for an electric vehicle, characterized in that used. The method of claim 9, The charging state observer receives and manages a code of a unique authentication number corresponding to the electric vehicle from the battery management system (BMS) module, and operates the charging on / off switching unit in the case of an unauthenticated code. Battery charging system for an electric vehicle, characterized in that off. The method of claim 12, And wherein the unauthorized number is a stolen vehicle number.

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