KR101506015B1 - charging equipment of an electric car - Google Patents

Abstract

The present invention relates to a charging apparatus for an electric vehicle. The present invention easily constructs a charging infrastructure for the electric vehicle by providing the charging apparatus for the electric vehicle which is commonly used in various electric vehicles which are manufactured in several automobile manufacturers. The present invention includes: a complex charger (2) which includes a switching device (24) which selects DC power or AC power for rapid DC charging or rapid AC charging, a control circuit (22) which includes a communications module to sense electric charges and an amount of power used and to transmit the sensed result to a supplier by wire or wirelessly and is installed in a charger body (21), and a button control unit (23) which is electrically connected to the control circuit (22), selects the DC power or AC power, and is installed to be exposed outside the charger body (21), and a connector assembly (4) which is electrically connected to the control circuit (22). The connector assembly (4) includes a first connector (42) which is integrated with the body (41), a second connector (43) which includes a combination part (43a) for the first connector which is combined with the first connector (42) and is integrated on the rear side thereof, and a third connector (44) which includes a combination part (44a) for the second connector which is combined with the second connector (43) and is integrated on the rear side thereof.

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 device for an electric vehicle, and more particularly, to an electric vehicle charging device that can be selectively used in various electric vehicles manufactured by various automobile companies, .

Electric cars are a key task in the era that can solve serious global warming and depletion of energy resources and lead to demonstration of creative economy to create future energy resources. It is difficult to secure the proprietary pre-emptive technology within the fierce competition between the countries. However, despite the significant development in the development of the electric car and the battery at a critical point, The electric vehicles are not popularized in the early stage.

In the case of an electric car charging device which is generally used, the rapid charging method of an electric car is divided into a three-phase method using a car demo, a combo, and an alternating current using a direct current. Charging system.

The car demo (CHAdeMO) is a standard made by Japanese automobile companies. It consists of a connector used separately for DC charging (DC charging) and DC charging (AC charging) separately. The combination of the DC (DC) and the continuous charge AC (AC) charging combined with the connector type is now becoming standardized and standardized by European automakers.

The three-phase approach using AC is currently used by companies such as Renault and Toyota.

In order to satisfy all the electric vehicle charging devices to which the charging devices are applied, charging devices are required to be installed separately. Therefore, a problem arises that installation costs are increased, In the industry, the electric vehicle charging device which can charge the battery without charging regardless of the various charging schemes is required in the industry.

As a prior art of the above conventional charging techniques, there is known an electric car charging system using a switching device for power supply selection of Korean Patent Laid-Open Publication No. 10-2013-0077670 (Jul. 19, 2013) -1219284 (2013.01.22.), A multi-function charging device for an electric vehicle for direct current distribution using a large-capacity DC-DC converter, an electric car of 10-2012-0109232 (October 10, 2013) A connector of a charging device, etc. However, these prior arts have difficulty in realizing the construction of an electric vehicle charging infrastructure at a low cost with technologies that do not deviate from the above-described categories.

KR 1020130077670 A 2013.07.09. KR 101219284 B1 201.01.22. KR 1020120109232 A 2012.10.08.

Accordingly, the inventor of the present invention has developed a coupler composed of an inlet provided in an electric car, a connector electrically connected to a charger provided in a different form according to a manufacturer or a country, The present invention has been made in order to solve the problem that the charging infrastructure can not be effectively constructed due to a problem with the battery charger. In the present invention, in particular, the cable connector electrically connected to the charger is formed in a composite type, The present invention provides a charging device for an electric vehicle that allows a user to select and use the electric vehicle charging infrastructure, thereby facilitating construction of an electric vehicle charging infrastructure.

According to the present invention, in order to select a DC power source and an AC power source for DC fast charging and AC fast charging, power is supplied to a DC power source converting unit for converting an AC power source to a DC power source, And a control circuit electrically connected to the communication module for notifying the supplier of the charge and power consumption amount by sensing the charge and the electric power usage amount are provided in the main body of the charger and electrically connected to the control circuit A combined charger in which a button control unit for selecting a connector is installed in an exposed state outside the charger main body; The connector assembly includes a first connector (e.g., a combo type) integrally installed in the body and capable of using a DC power source and a single-phase AC power source, and a second connector A second connector (e.g., a car demo) using a DC power source and a coupling connector for a second connector, which is coupled to the second connector, are integrally formed in the rear And a third connector (e.g., Renault type) using three-phase AC power.

The connector assembly includes a first connector integrally formed on the body and using a quick-charge DC power source, a second connector for coupling with the first connector, and a second connector And a third connector using a three-phase AC power source, the first connector having a coupling hole for the first connector coupled to the first connector.

An auxiliary cable is provided between the body of the connector assembly and the second connector and the third connector.

The connector assembly is configured such that a first connector, a second connector, and a third connector are provided together in a radial manner on the body.

Further, the first connector, the second connector, and the third connector, which are provided radially to the body, are each configured to be foldable in the body.

The charging device for an electric vehicle provided in the present invention includes first to third connectors (a combo type connector and a car demo type connector) to a hybrid type charger body selectively provided with a DC power source and an AC power source for DC fast charging and AC fast charging, And an AC three-phase connector) can be selectively provided, and it is possible to eliminate the difficulty of individually providing the charging apparatus according to the conventional connector type.

In addition, it can remarkably reduce the facility cost of the charging device for the electric vehicle, and is a very useful invention that is expected to have a great effect of contributing to the construction of an electric vehicle charging infrastructure.

1 is a front view showing an embodiment of a charging apparatus for an electric vehicle to which the present invention is applied
2 is a side view showing an embodiment of a charging apparatus for an electric vehicle to which the present invention is applied
3 is a block diagram of a schematic configuration inside the charger in the electric vehicle charger according to the present invention.
4 is an exploded perspective view showing an embodiment of a connector assembly according to the present invention.
5 is an exploded perspective view showing another embodiment of the connector assembly according to the present invention.
Fig. 6 is a side view of Fig. 5
7 is a perspective view showing still another embodiment of the connector assembly according to the present invention.
8 is a side view of Fig. 7
9 is a front view showing still another embodiment of the connector assembly according to the present invention.

Hereinafter, an embodiment of a battery charger according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a front view showing an embodiment of a charging device for an electric vehicle to which the present invention is applied, FIG. 2 is a side view showing an embodiment of a charging device for an electric vehicle to which the present invention is applied, FIG. FIG. 4 is an exploded perspective view showing an embodiment of a connector assembly according to the present invention, and FIG.

As shown in the drawings, the charging device 1 for an electric vehicle provided in the present invention comprises a hybrid type charger 2, a cable 3 including a composite type charger 2, electric wires (for AC and DC) To a connected connector assembly (4).

The hybrid type charger 2 is of a standing type in which a box type charger main body 21 is fixedly mounted on the ground. A control circuit 22 is provided inside the charger main body 21, and a control circuit 22 are electrically connected to each other in an exposed state.

The control circuit 22 is electrically connected to the power supply unit 25. The power supply unit 25 supplies the high-voltage AC power to the switching device 24 through the receiving equipment and into AC single-phase or three-phase. The switching device 24 supplies power to the DC power source converting unit 25a for converting the AC power source to the DC power source or provides the function of switching the AC single phase or the three phase to be provided as it is through the AC transformer 25b do.

The control circuit 22 is provided with a communication module 26. The communication module 26 compares the value obtained by checking the amount of power consumption in the control circuit 22 and the charge generated by the control circuit 22, Thereby providing functionality to communicate with the user in a wired or wireless manner.

The button control unit 23 installed to be exposed to the outside of the charger main body 21 is provided with a plurality of selection switches and preferably includes a first connector switch 23a constituting a connector assembly 4 to be described later, A second connector switch 23b and a third connector switch 23c and a stop switch 23d are provided in the control circuit 22. The control circuit 22 switches the switching device 24, So that communication control can be performed with the DC power supply or the AC power supply suitable for the power supply. The button control unit 23 may be constructed of a mechanical type or a touch type.

4, the connector assembly 4 connected to the hybrid type charger 2 and the cable 3 is integrally provided in the body 41 and includes a first connector 42 and a second connector 42, A second connector 43 using only DC connected to the first connector 42 and a third connector 44 connected to the second connector 43 are assembled to be detachable in three stages do.

An example of the first connector 42 may be a European combo type (the same as the largest number of ground and control pin assemblies) in which the DC power source and the AC power source are separated, An example of the third connector 43 may be a demo type connector, and the third connector 44 may be an AC three-phase connector.

To this end, a first connector coupling hole 43a is integrally provided at the rear of the second connector 43 to be coupled to the first connector 42. Although not shown, And the communication terminal is electrically connected to the power terminal and the communication terminal of the second connector 43. An auxiliary cable 45 is additionally provided between the body 41 and the second connector 43 when the first connector 42 is 7 pins and the second connector 43 is provided with 10 pins . The auxiliary cable 45 may be used as a power line or a communication line. For example, when the first connector 42 is 7 pins and the second connector 43 is 10 pins, 3 pins are insufficient. This is because a method of constructing an insulated 3-pin electric wire in the auxiliary cable 45 .

A second connector connector 44a is integrally provided at the rear of the third connector 44 to be coupled to the second connector 43. The connector connector 44a is integrally provided at the rear of the third connector 44, And the communication terminal are electrically connected to the power supply terminal and the communication terminal of the third connector 44, respectively.

On the other hand, the first connector 42 is configured to use single-phase AC and DC, the second connector 43 is configured to use DC power, and the third connector 44 is configured to use a three-phase AC power terminal The power can be supplied to the AC power terminal using the auxiliary cable 45 between the body 41 and the third connector 44 as described above.

The auxiliary cable 45 may be of a grounding type in a casing of the first connector 42 and the second connector 43.

The first and second connectors 43a and 44a have the same configuration as the inlet provided in the electric vehicle and the second connector 43 and the third connector 44 are prevented from being lost. The body 41 and the connecting hook 46 are connected to each other.

Another example of the connector assembly 4 connected to the hybrid type charger 2 and the cable 3 is an integrally formed body 41 as shown in FIGS. 5 and 6, and includes a quick-charge DC (direct current) A first connector 42 selectively using a charging AC (alternating current), a second connector 43 using only DC connected to the first connector 42, 3 connector 44 as shown in FIG.

To this end, a first connector coupling hole 43a to be coupled with the first connector 42 is integrally provided at the rear of the second connector 43. Although not shown, And the communication terminal is electrically connected to the power terminal and the communication terminal of the second connector 43.

The first connector 42 and the first connector 42 are integrally provided at the rear of the third connector 44. The first connector 42 and the power terminal And the communication terminal are electrically connected to the power supply terminal and the communication terminal of the third connector 44, respectively.

Meanwhile, although the first connector 42 uses DC and the second connector 43 uses a DC power source, the number of pins may be larger than that of the first connector 42, and the third connector 44 Phase AC power terminal is required, an auxiliary cable 45 is connected between the body 41, the second connector 43 and the third connector 44 and used.

The first connector fittings 43a and 44b have the same configuration as the inlet provided in the electric vehicle and the second connector 43 and the third connector 44 are designed to prevent loss So as to connect the body 41 and the connecting loop 46 to each other.

FIG. 7 is a perspective view showing another embodiment of a connector assembly according to the present invention, and FIG. 8 is a side view of FIG. 7. FIG.

In another embodiment of the connector assembly 4 provided in the present invention, the first connector 42 and the second connector 43 are radially provided on the body 41 connected with the composite charger 2 and the cable 3, And a third connector 44 are disposed on the second connector 44. As shown in Fig.

The first connector 42, the second connector 43, and the third connector 44, which are radially disposed on the body 41 as described above, are turned forward only for the object to be used, It is preferable to configure the charging device so that there is no obstacle in charging.

A bracket 41a is formed radially on the body 41 and the first connector 42, the second connector 43 and the third connector 44 are provided on the bracket 41a, The pins 47 are coupled to each other.

The first connector 42, the second connector 43 and the third connector 44 corresponding to the body 41 are connected to the first connector 42 and the third connector 44 by a flexible ground cable 48, The second connector 43 and the third connector 44 are turned forward for charging, the power supply and the communication grounding can be performed under the control of the button control unit 23.

9 is a front view showing another embodiment of the connector assembly according to the present invention.

In arranging the first connector 42, the second connector 43 and the third connector 44 in a radial manner on the body 41 connected with the composite charger 2 and the cable 3, 1 connector 42, the second connector 43, and the third connector 44 are constituted by the joint type link members 49, respectively.

In the case of the joint type link members 49, both ends of the joint type link members 49 are coupled to the body 41, the first connector 42, the second connector 43 and the third connector 44 with the pins 47 A protective cover 50 made of a rubber material is placed on a connector other than the connector to be used and is bent so as to be supported by the vehicle body of the electric car so that the vehicle can be supported without friction with the vehicle body during charging.

The charging device 1 for an electric vehicle according to the present invention configured as described above is provided with a charging device of a conventional combo type, a car demo type, and an AC three-phase type separately, The use of the present invention will be described.

In order to use the present invention, a corresponding connector is first selected in the connector assembly 4 and is coupled to the inlet of the electric vehicle.

4, when the first connector 42 is used, the second connector 43 is detached. When the second connector 43 is used, The third connector 44 may be detached in a state where the second connector 43 is coupled to the first connector 42. When the third connector 44 is to be selected, the third connector 44 is further coupled to the second connector 43 while the second connector 43 is coupled to the first connector 42.

When the connector assembly 4 is connected in series as shown in FIGS. 5 and 6, when the first connector 42 is to be used, the second connector 43 or the third connector 44 is not used . When the second connector 43 is used, the first connector 42 is used while the second connector 43 is used. When the third connector 44 is to be used, 3 connector 44 may be used in combination.

7 and 8, the first connector 42, the second connector 43, and the third connector 44, which are rotatably installed in a radial manner when the connector assembly 4 is radially coupled, One of them may be pivoted to the front of the body 41 and the remaining connectors may be pivoted rearward of the body 41. [

9, one of the first connector 42, the second connector 43, and the third connector 44 is coupled to the electric vehicle, and the other connectors The protection cover 50 may be coupled to be supported by the electric vehicle body.

In the state where the connector is selected and connected to the inlet of the electric car as described above, the corresponding connector is selected by pressing the button of the button control unit 23 provided outside the charger main body 21 in an exposed state.

When the corresponding connector by the button control unit 23 is selected as described above, the DC power source and the AC power source are selected in the switching device 24 electrically connected to the control circuit 22. When the first connector 42 is selected DC power is provided when the second connector 43 is selected, and DC power is provided when the second connector 43 is selected. When the third connector 44 is selected, charging is performed while three-phase AC power is supplied, Charge amount and billing information will be notified by supplier and user through wire or wireless.

When the charging is to be terminated, the user first disconnects the connector from the inlet of the electric vehicle while the power is turned off by pressing the stop button 23d of the button control unit 23.

Although not shown in the present invention, it is a matter of course that the first to third connectors 42, 43 and 44 are basically equipped with a ground terminal.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of protection of the present invention should not be limited to the described embodiment, but should be determined by the equivalents as well as the claims that follow.

1: Charging device for electric vehicle 2: Combined charger
21: Charger main body 22: Control circuit
23: button control unit 23a: first connector switch
23b: second connector switch 23c: third connector switch
23d: stop switch 24: switching device
25: electricity supply unit 26: communication module
3: Cable 4: Connector assembly
41: body 42: first connector
43: second connector 44: third connector
43a, 44b: first connector coupling hole 44a: second connector coupling hole
45: Auxiliary cable
46: connecting ring 47: pin
48: grounding cable 49: joint type link member
50: Protective cover

Claims (6)

To supply DC power and AC power alternatively for DC fast charge and AC fast charge, supply power to DC power converter which converts AC power to DC power, or switch to provide single or three phase of 220V And a control circuit 22 electrically connected to the communication module 26 for notifying the supplier of the charging and electric power usage amount by detecting the charging and electric power usage amount and setting the charging and electric power consumption amount to the supplier in the charger main body 21 And a button control unit (23) electrically connected to the control circuit (22) for selecting a connector is installed in an exposed state outside the charger main body (21);
And a connector assembly (4) electrically connected to the control circuit (22)
The connector assembly 4 includes a first connector 42 installed integrally with the body 41 and capable of using a DC power source and a single-phase AC power source,
A second connector 43 formed integrally with the first connector 42 and having a first connector connector 43a for receiving the DC power,
And a third connector (44) having a second connector coupling hole (44a) which is coupled to the second connector (43) and which is integrally formed at the rear and uses a three-phase AC power source. .
To supply DC power and AC power alternatively for DC fast charge and AC fast charge, supply power to DC power converter which converts AC power to DC power, or switch to provide single or three phase of 220V And a control circuit 22 electrically connected to the communication module 26 for notifying the supplier of the charge and the electric power usage amount by detecting the charge and the electric power usage amount are installed in the charger main body 21 And a button control unit (23) electrically connected to the control circuit (22) for selecting a connector is installed in an exposed state outside the charger main body (21);
And a connector assembly (4) electrically connected to the control circuit (22)
The connector assembly 4 includes a first connector 42 installed integrally with the body 41 and capable of using a DC power source and a single-phase AC power source,
A second connector 43 formed integrally with the first connector 42 and having a first connector connector 43a for receiving the DC power,
And a third connector (44) having a first connector coupling hole (44b) which is coupled to the first connector (42) and which is integrally formed in the rear and uses a three-phase AC power source. .
The method of claim 1,
Characterized in that an auxiliary cable (45) is provided between the body (41) of the connector assembly (4), the second connector (43) and the third connector (44).
To supply DC power and AC power alternatively for DC fast charge and AC fast charge, supply power to DC power converter which converts AC power to DC power, or switch to provide single or three phase of 220V And a control circuit 22 electrically connected to the communication module 26 for notifying the supplier of the charging and electric power usage amount by detecting the charging and electric power usage amount and setting the charging and electric power consumption amount to the supplier in the charger main body 21 And a button control unit (23) electrically connected to the control circuit (22) for selecting a connector is installed in an exposed state outside the charger main body (21);
And a connector assembly (4) electrically connected to the control circuit (22)
The connector assembly 4 includes a first connector 42, a second connector 43, and a second connector 43. The first connector 42 can radiate DC power and the single-phase AC power to the body 41, And a third connector (44) using a second connector (44).
The method of claim 4,
Characterized in that the first connector (42), the second connector (43) and the third connector (44) radially provided to the body (41) are formed by a folding type in the body (41) .
The method of claim 4,
The first connector 42, the second connector 43 and the third connector 44 radially provided to the body 41 are connected to each other by the body 41 and the joint type link members 47, And the battery is connected to the battery.

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