JP2010277718A - Electric vehicle charger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide technology for effectively preventing the breaking operation of a wiring circuit breaker resulting from the simultaneous use of a plurality of sockets of an electric vehicle charging device, without depending on a means of installing additional dedicated circuit breakers. <P>SOLUTION: The electric vehicle charging device includes the plurality of sockets into each of which a charging cable plug connected to a secondary battery of an electric vehicle is inserted, and which are provided depending on various forms of power supplies to secondary batteries, and a cable plug simultaneous insertion preventing means for physically preventing the simultaneous insertion of the charging cable plugs to the plurality of sockets. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

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

  With the widespread use of electric vehicles, it is expected that charging devices for electric vehicles using household power will be installed in ordinary households. For example, Patent Document 1 determines whether a power control system that effectively uses late-night power to reduce power bills at home, and whether charging is urgently required. Thus, a technique of a power control system is disclosed in which rapid mode charging is performed when urgency is high, and charging is terminated at a predetermined set value when urgency is low and outside midnight power application time.

  An electric vehicle charging device that realizes such a power control system includes, for example, a normal power supply outlet and a midnight power supply outlet, or a 100 V power supply outlet used for a normal charging speed mode and a 200 V power supply used for a rapid mode. It can be set as the structure provided with several outlets, such as an electrical outlet.

  Conventionally, in a circuit breaker provided in a distribution board for general households, a rated current is set so that a current exceeding 20 A does not flow in each branch circuit. On the other hand, if a plurality of outlets of the charging device for an electric vehicle are mistakenly used at the same time, a current exceeding the rated current of the circuit breaker flows, and the power supply to the charging device is interrupted each time. was there.

  In order to solve the above problem, means for newly providing a circuit breaker having a large breaking capacity and means for providing each outlet in a branch circuit of a separate system can be considered. There was a problem that it was inconvenient because it required installation.

JP 2002-315193 A

  The object of the present invention is to solve the above-mentioned problem, and not to install a new dedicated circuit breaker, but due to the simultaneous use of a plurality of outlets provided in the charging device for an electric vehicle, the circuit breaker breaking operation It is to provide a technology that can effectively prevent the above.

  The charging device for an electric vehicle of the present invention made to solve the above-described problems is achieved by connecting an outlet into which a charging cable plug connected to a secondary battery of the electric vehicle is inserted according to various power supply modes to the secondary battery. And a plurality of cable plug simultaneous insertion preventing means for physically preventing simultaneous insertion of charging cable plugs into the plurality of outlets.

  According to a second aspect of the present invention, in the charging device for an electric vehicle according to the first aspect, the cable plug simultaneous insertion preventing means comprises a single outlet cover that covers an outlet other than one outlet to be used. It is a feature.

  According to a third aspect of the present invention, in the charging device for an electric vehicle according to the second aspect, the outlet cover is a slide type cover.

  According to a fourth aspect of the present invention, in the charging device for an electric vehicle according to the first aspect, the plurality of outlets are formed on an outlet block, and the cable plug simultaneous insertion preventing means is an outer frame of the charging device for the electric vehicle. And a receptacle block movably accommodated in the device box, from which only a single outlet is exposed to the outside of the device box. It is characterized by that.

  According to a fifth aspect of the present invention, in the charging device for an electric vehicle according to the first aspect, the cable plug simultaneous insertion preventing means is arranged to share one of the plug insertion ports constituting each outlet between adjacent outlets. It is characterized by comprising a plurality of outlets.

  According to a sixth aspect of the present invention, in the charging device for an electric vehicle according to the first aspect, the cable plug simultaneous insertion preventing means is a plug receiving surface formed around the plug insertion port of each outlet between adjacent outlets. It consists of several outlets arrange | positioned so that a part may be shared.

  According to a seventh aspect of the present invention, in the charging device for an electric vehicle according to any one of the first to sixth aspects, the plurality of outlets are in a normal power supply outlet and a midnight power supply outlet, or in a normal charging speed mode. It is characterized by being a 100V power supply outlet used and a 200V power supply outlet used for the rapid mode.

  The charging device for an electric vehicle according to the present invention includes simultaneous use preventing means for preventing simultaneous use of a plurality of outlets corresponding to various power supply modes. In the present invention, this configuration effectively prevents the circuit breaker from being interrupted due to the simultaneous use of a plurality of outlets provided in the electric vehicle charging device, regardless of the installation of a new dedicated circuit breaker. It was possible to prevent.

  According to invention of Claim 2 or 3, the said effect of this invention is realizable with a simple structure provided with the single outlet cover which coat | covers outlets other than one outlet used as an object.

  According to a fourth aspect of the present invention, a plurality of outlets are formed on the outlet block, and the outlet block is movably accommodated in an apparatus box constituting an outer frame of the electric vehicle charging device, and is formed in the apparatus box. The outlet for use is moved to the window portion for the outlet. According to this configuration, the outlet visually recognized from the outer surface of the device box can be only one outlet arranged at the position of the outlet window, and an electric vehicle charging device excellent in aesthetics can be realized. Can do. Moreover, according to this structure, since it cannot visually recognize from the exterior other than one outlet arrange | positioned in this window part position for outlets, use of multiple outlets by mistake can be prevented reliably.

  According to the fifth or sixth aspect of the present invention, when one plug is inserted due to the configuration in which adjacent outlets are arranged close to each other, the plug becomes a physical obstacle and plugs into the adjacent outlet. Could not be inserted. Thereby, the use of a plurality of outlets due to errors can be reliably prevented.

1 is an overall view of a charging device for an electric vehicle according to a first embodiment. FIG. 3 is an enlarged view of the vicinity of the outlet portion of the first embodiment. It is explanatory drawing of the cable plug simultaneous insertion prevention means in Embodiment 1. It is explanatory drawing of the cable plug simultaneous insertion prevention means in Embodiment 1. It is explanatory drawing of the cable plug simultaneous insertion prevention means in Embodiment 2. It is an outlet block which comprises the charging device for electric vehicles of Embodiment 3. FIG. It is explanatory drawing of the cable plug simultaneous insertion prevention means in Embodiment 4. It is explanatory drawing of the cable plug simultaneous insertion prevention means in Embodiment 5.

  The charging device for an electric vehicle of the present invention has an optimum structure as a charging device for an electric vehicle using household electric power. Specifically, a power cable for supplying power from a lead-in wire drawn into each home via a distribution board, and power supply control means for controlling power supply from the power cable to an electric vehicle having a secondary battery The power supply control means includes, for example, power control that effectively uses late-night power to reduce power bills at home, and when urgentness is high by determining whether charging is urgently required. When rapid mode charging is performed and the urgency is low and it is outside the midnight power application time period, power control for ending charging at a predetermined set value is performed.

  The charging device according to the present invention is, for example, a normal power supply outlet and a midnight power supply outlet, or a 100V power supply outlet used for a normal charging speed mode and a 200V power supply used for a rapid mode as one mechanism of the power control. A structure including a plurality of outlets such as an outlet is provided.

  Preferred embodiments of the present invention are shown below.

(Embodiment 1)
FIG. 1 shows an overall view of the electric vehicle charging apparatus according to the first embodiment.

  The electric vehicle charging device 1 according to the present embodiment includes an electric vehicle charging device body 1a and a front door 1b that is opened during a charging operation. When the front door 1b is released, two outlet portions 2 and an outlet cover 3 that covers the outlet portions are disposed inside.

  FIG. 2 shows an enlarged view around the outlet portion 2.

  As shown in FIG. 2, each outlet portion 2 has a plug insertion port 2a into which a charging cable plug connected to a secondary battery of an electric vehicle is inserted during charging, and a plug receiving surface formed around the plug insertion port 2a. 2b.

  The outlet cover 3 of the present embodiment is held on the electric vehicle charging device 1 by a shutter-type slide mechanism and has a cover area that selectively covers one of the outlet portions 2 that are adjacently disposed at two locations. It is a single outlet cover that covers outlets other than one outlet to be used. As shown in FIG. 3, when the cover 3 is located near the center of the outlet portion 2 arranged adjacent to two places (FIG. 3B), any outlet portion 2 is connected to the plug insertion port. Since a part of 2a is covered with the cover 3, the charging cable plug 4 cannot be inserted. In addition, when the plug insertion port 2a of any one of the outlet portions 2 is completely exposed and the charging cable plug 4 can be inserted (FIGS. 3- (a) and (c)), the cover 3 is connected to another outlet. Since the portion 2 is completely covered, insertion of the plurality of charging cable plugs 4 can be reliably prevented. Further, in order to enable the cover 3 to hold the plug insertion port 2a of any one of the outlet portions 2 (FIGS. 3- (a) and (c)), two outlet portions are provided. 2 to the position where the plug insertion port 2a of any one of the outlet sections 2 is completely exposed when the hand is released from the cover 3 in the vicinity of the center ((FIG. 3B)). It is preferable to provide position restricting means such as a spring so that the cover 3 moves.

  At the time of charging, as shown in FIG. 2, the outlet cover 3 is moved to expose one of the plug outlets 2a of the two outlet portions 2, and then the secondary of the electric vehicle is inserted into the plug outlet 2a. The charging cable plug 4 connected to the battery is inserted.

  In the present embodiment, as the cable plug simultaneous insertion preventing means, the outlet cover 3 having a cover area that selectively covers any of the outlet portions 2 adjacently disposed at two places is adopted, and the outlet cover 3 is Although a structure that slides by a shutter-type slide mechanism is adopted, as another slide structure, for example, as shown in FIG. 4, a rotary slide structure having a rotation axis perpendicular to the surface of the plug insertion port 2a is used. It can also be adopted. Even when the rotary slide structure is adopted, the cover 3 can be provided with a position regulating means such as a spring. However, in the case of the rotary slide structure, a positive force is applied to the cover 3. As long as it is not, the cover 3 may be located near the center of the two outlet portions 2 by its own weight ((FIG. 3B)), and neither outlet may be used.

(Embodiment 2)
FIG. 5 is an explanatory diagram of the cable plug simultaneous insertion preventing means provided in the electric vehicle charging apparatus according to the second embodiment.

  The electric vehicle charging device 1 according to the present embodiment includes an electric vehicle charging device body 1a and a front door 1b that is opened during a charging operation. When the front door 1b is released, an outlet portion 2 and an outlet cover 3 covering the outlet portion are disposed inside, and the outlet portion 2 is a charging cable plug connected to a secondary battery of an electric vehicle during charging work. The second embodiment is the same as the first embodiment in that it is composed of a plug insertion slot 2a into which a plug is inserted and a plug receiving surface 2b formed around the plug insertion slot 2a.

The outlet cover 3 according to the present embodiment is held on the electric vehicle charging device 1 by a rotary slide mechanism having a rotating shaft that is horizontal with respect to the surface of the plug insertion port 2a, and is an outlet portion that is disposed adjacent to two places. 2 has a cover area for selectively covering any one of the two. As shown in FIG. 4, when the plug insertion port 2a of any outlet section 2 is completely exposed and the charging cable plug 4 can be inserted (FIGS. 5- (a) and (c)), the outlet Since the cover 3 completely covers the other outlet portion 2, insertion of the plurality of charging cable plugs 4 can be reliably prevented. In this embodiment, when the outlet cover 3 has a predetermined angle with respect to the surface of the plug insertion port 2a ((FIG. 5- (b)), the plug insertion of any outlet unit 2 is performed. The mouth 2a can also be completely exposed, but even in such a case, a limit switch is provided as a means for reliably preventing simultaneous use of the outlet, and the outlet cover 3 covers one outlet (see FIG. 5- (a) and (c)) may be provided with a mechanism for energizing the outlet unit 2 and in other cases a mechanism for stopping energization of the outlet unit 2. Instead of the stop mechanism, it is also possible to adopt a structure in which the outlet cover 3 is provided with a spring in a direction in which the outlet cover 3 is pulled in the horizontal direction with respect to the plug insertion opening 2a of the outlet portion 2. Also in this embodiment, As in the first embodiment, the cover 3 can hold the state (FIGS. 3- (a) and (c)) in which the plug insertion port 2a of any outlet portion 2 is completely exposed. When the hand is released from the cover 3 near the center of the outlet portion 2 ((FIG. 3B)), the plug insertion port 2a of any one of the outlet portions 2 is completely exposed. It is preferable to provide position restricting means such as a spring so that the cover 3 moves to a position where the state is reached.
(Embodiment 3)

  In FIG. 6, the outlet block which comprises the charging device for electric vehicles of Embodiment 3 is shown.

  In this embodiment, the outlet portion 2 is provided on an independent outlet block 5, and the outlet block 5 is movably accommodated in the charging device body 1a for an electric vehicle. During the charging operation, the outlet block 5 is rotated to expose a desired outlet portion from the outlet window portion 6 formed in the charging device 1 for an electric vehicle, and the charging cable plug 4 is inserted into the outlet portion 2. . In the present embodiment, since the outlet portion 2 exposed from the outlet window portion 6 is always limited to one, insertion of a plurality of charging cable plugs 4 can be reliably prevented.

(Embodiment 4)
FIG. 7 is an explanatory diagram of the cable plug simultaneous insertion preventing means provided in the electric vehicle charging apparatus of the fourth embodiment.

  The electric vehicle charging device 1 according to the present embodiment includes an electric vehicle charging device body 1a and a front door 1b that is opened during a charging operation. When the front door 1b is released, an outlet portion 2 is disposed inside, and the outlet portion 2 includes a plug insertion port 2a into which a charging cable plug connected to a secondary battery of an electric vehicle is inserted during charging work, The plug receiving surface 2b is formed around the plug insertion opening 2a.

  In the present embodiment, as shown in FIG. 7, the outlet portion 2 arranged adjacent to two places has a ground electrode sharing portion 7 that shares the ground electrode of the plug insertion port 2 a. In this structure, since the charging cable plug 4 cannot be physically inserted into the other outlet portion 2 in a state where the charging cable plug 4 is inserted into one outlet portion 2, a plurality of charging cable plugs 4 are inserted. It can be surely prevented.

(Embodiment 5)
FIG. 8 is an explanatory diagram of the cable plug simultaneous insertion preventing means provided in the electric vehicle charging apparatus according to the fifth embodiment.

  The electric vehicle charging device 1 according to the present embodiment includes an electric vehicle charging device body 1a and a front door 1b that is opened during a charging operation. When the front door 1b is released, an outlet portion 2 is disposed inside, and the outlet portion 2 includes a plug insertion port 2a into which a charging cable plug connected to a secondary battery of an electric vehicle is inserted during charging work, The plug receiving surface 2b is formed around the plug insertion opening 2a.

  In the present embodiment, as shown in FIG. 8, the outlet portion 2 arranged adjacent to two places has a plug receiving surface sharing portion 8 that shares the plug receiving surface 2 b. In this structure, since the charging cable plug 4 cannot be physically inserted into the other outlet portion 2 in a state where the charging cable plug 4 is inserted into one outlet portion 2, a plurality of charging cable plugs 4 are inserted. It can be surely prevented.

DESCRIPTION OF SYMBOLS 1 Electric vehicle charging device 1a Electric vehicle charging device main body 1b Front door 2 Outlet part 2a Plug insertion port 2b Plug receiving surface 3 Outlet cover 4 Charging cable plug 5 Outlet block 6 Outlet window part 7 Ground electrode common part 8 Plug receiver Surface sharing part

Claims (7)

A plurality of outlets into which a charging cable plug connected to a secondary battery of an electric vehicle is inserted according to various power supply modes to the secondary battery,
Furthermore, the charging device for electric vehicles characterized by including the cable plug simultaneous insertion prevention means which physically prevents simultaneous insertion of the charging cable plug to the plurality of outlets.   2. The charging device for an electric vehicle according to claim 1, wherein the cable plug simultaneous insertion preventing means comprises a single outlet cover covering an outlet other than one outlet to be used.   3. The charging device for an electric vehicle according to claim 2, wherein the outlet cover is a slide type cover. The plurality of outlets are formed on an outlet block, and the cable plug simultaneous insertion preventing means includes an outlet window portion formed in an apparatus box constituting an outer frame of the electric vehicle charging device, and an inside of the apparatus box. Consists of a movable outlet block
2. The charging device for an electric vehicle according to claim 1, wherein only a single outlet is exposed to the outside of the device box from the outlet window.   2. An electric vehicle according to claim 1, wherein the cable plug simultaneous insertion preventing means comprises a plurality of outlets arranged so as to share one of the plug insertion ports constituting each outlet between adjacent outlets. Charging device.   The cable plug simultaneous insertion preventing means comprises a plurality of outlets arranged so as to share a part of a plug receiving surface formed around a plug insertion port of each outlet between adjacent outlets. The charging device for electric vehicles according to 1. 2. The plurality of outlets are a normal power supply outlet and a midnight power supply outlet, or a 100V power supply outlet used for a normal charging speed mode and a 200V power supply outlet used for a rapid mode. The charging apparatus for electric vehicles in any one of -6.

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