JP2012029388A - Charging system of electric vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a charge cable from disconnecting from a charge unit due to an accident or mischief when an electric vehicle is charged, and to securely charge the electric vehicle.SOLUTION: A charge cable, used for charging a battery of an electric vehicle, is connected to an outlet 110 of a charge unit 100. A door 105 is provided so as to openably/closably cover a cell 109 housing the outlet 110, and the door 105 is unlocked or locked by an electric lock 200. A charge control part 1100 controls the door 105 to be locked through the electric lock 200 at least when charging is conducted via the outlet 110 of the charge unit 100. If the door 105 is not closed or locked or the charge cable is not connected with the outlet 110, a warning is given and the charging is not started.

Description

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

  It is well known that mobiles that run on electric motors (hereinafter also referred to as batteries), such as electric cars and electric bicycles, are effective for effective use of earth resources such as oil and CO2 reduction to prevent global warming. Is the fact of For automobiles that run on oil, there is a gas station etc. as a conventional refueling method, but electric vehicles and bicycles (hereinafter, these mobiles are collectively referred to as “electric vehicles”) are equipped with storage batteries. Need to be charged. Charging this electric vehicle takes more time than refueling compared to oil, light oil, and the like.

  For this reason, an electric vehicle is used in the parking lot of each household that owns it, and in apartment buildings such as condominiums, it can be used individually when the vehicle is not driven by using a shared site such as the parking lot or a charging space. It is thought that it is often charged. The reason for this is that, as an electric vehicle possession method, a shared system such as so-called car sharing is adopted in an apartment house such as an apartment, where one electric vehicle is unspecified and shared among multiple households. But the same is true.

  In a housing complex such as a condominium, it is necessary to efficiently charge a plurality of electric vehicles in a parking lot allocated to each household or a charging space provided exclusively for charging. In Patent Document 1 below, in order to charge a plurality of electric vehicles, a single rectifier is provided as a common DC power source for the plurality of chargers, and a plurality of chargers selected from among the chargers are selected. A configuration for charging a single electric vehicle is disclosed.

JP 05-336673 A

  When configuring a charging system so that multiple electric vehicles can be charged, it is possible to use a stand-alone configuration for each charger (charging unit). However, the charging system installed in an apartment house includes a main power supply. The entire system is configured as a master unit / slave unit system consisting of a charging control unit (master unit) and a charging unit (slave unit) for charging individual electric vehicles. A configuration that allows centralized control of operations related to registration and billing is considered suitable.

  In the base unit / slave unit system, the cost of manufacturing and installing the entire charging system can be reduced by sharing the power supply unit, rather than having multiple stand-alone chargers. There is an advantage that centralized management is possible and the use and operation of the charging system can be facilitated.

  When arranging a plurality of charging units in a parking lot or a charging space of an apartment house, it is necessary to give sufficient consideration to the handling of the charging cable connecting the charging unit and the electric vehicle.

  For example, during charging, if the charging cable for the charging unit and the electric vehicle are not neatly crawled around in the parking lot or charging space of the housing complex, the resident will trip over the charging cable and the charging cable being charged Failure to do so could cause the charging unit to drop out and interrupt the ongoing charging job. If the charging cable is disconnected, the charging system circuit may be adversely affected, and there may be dangers such as sparks.

  Further, the connection between the charging cable and the charging unit is constituted by a three-terminal connector (plug) on the cable side and a receptacle on the charging unit side, and the dropping prevention mechanism between these connectors (plug) and the receptacle prevents the dropping. Often configured.

  However, since it is not a mechanism that locks the coupling between the charging cable and the connector (plug) of the charging unit and the receptacle by locking, it is not difficult to remove the coupling if the operation method is known. There is a problem that it is impossible to reliably prevent the charging cable being charged from being pulled out of the charging unit.

  In view of the above problems, an object of the present invention is to prevent the charging cable from being disconnected from the charging unit due to an accident or mischief during charging of the electric vehicle, so that the electric vehicle can be reliably charged. Is to make it.

  In order to solve the above problems, in the present invention, a charger unit having a charging output means for connecting a charging cable for charging a battery of an electric vehicle and outputting a charging current, and the charging output means of the charger unit are provided. A charge control unit that controls a charging operation performed via a charge output means of the charger unit; a door that covers the housing part so as to be opened and closed; an electric lock that unlocks or locks the door; The part employs a configuration in which the door is controlled to be locked through the electric lock during a period during which a charging operation is performed through the charge output means.

  According to the above configuration, during the period of performing the charging operation of the electric vehicle via the charging output means of the charger unit, the locked state can be controlled so as not to open the door covering the charging output means via the electric lock. In addition, there is an excellent effect that the charging cable can be reliably charged while preventing the connection of the charging cable from the charging unit from being accidentally or mischiefed during charging of the electric vehicle.

It is the perspective view which showed the external appearance of the charging unit (slave unit) used in the charging system of the electric vehicle which employ | adopted this invention from diagonally upward. It is the perspective view which showed the external appearance of the charging unit (slave unit) used in the charging system of the electric vehicle which employ | adopted this invention from diagonally downward. It is explanatory drawing which showed the structure of the electric lock used for the charging unit of FIG. 1 and FIG. It is the block diagram which showed the structure of the control system of the charging system of the electric vehicle which employ | adopted this invention. It is the flowchart figure which showed the charge control procedure of the charge control part in the charging system of the electric vehicle which employ | adopted this invention.

  Hereinafter, as an example of a mode for carrying out the present invention, a plurality of charging units (slave units) for charging a plurality of electric vehicles and a charging job by the plurality of charging units (slave units) are controlled. An embodiment relating to a charging system for an electric vehicle including a charging control unit (master unit) will be described with reference to the accompanying drawings.

  FIG. 4 shows the overall configuration of an electric vehicle charging system for charging a plurality of electric vehicles in an electric vehicle parking lot or charging space. In addition, as a parking lot or a charging space, for example, a parking lot or a charging space of an apartment house such as a condominium can be considered, but may be any other public parking lot or charging space.

  4 includes a plurality of charging units (slave units) 1001, 1002, 1003,... For charging a plurality of electric vehicles, and a plurality of charging units (slave units) 1001, 1002, 1003,. The charging unit (master unit) 1000 is used to control charging jobs according to, that is, to centrally control operations related to charging application, registration, and charging.

  In the lower part of FIG. 4, a charging control unit 1100 is shown. This charging control unit 1100 is arranged, for example, in a housing arranged in the vicinity of the charging unit (base unit) 1000 or a charging unit (base unit). ).

  The charging control unit 1100 receives a commercial AC power supply 1200 (single-phase 100V, three-phase 200V, etc.), generates a charging current for output from the charging units 1001, 1002,..., Charging job application / registration control Switch circuit for turning on / off the charging output in response to the charging, operation for charging application and registration, accounting, and control circuit including CPU, ROM, RAM, etc. for controlling the charging control described later, charging unit (master unit) ) Input / output to / from the user interface for 1000 registration operations, input / output to / from the display circuits of the charging units (slave units) 1001, 1002,..., And the charging units (slave units) 1001, 1002. It is composed of an input / output circuit for controlling input / output of information relating to the state of charge.

  The charging unit (base unit) 1000 includes a user interface 1000a for performing a registration operation, and an authentication device 1000b including a card reader. The user interface 1000a includes a keyboard including a numeric keypad and function keys, and a display unit including an LCD panel and a warning light.

  The authentication device 1000b is for reading an ID card (for example, an IC card) issued to a user who has the authority to execute a charging job in the system.

  FIG. 1 and FIG. 2 show the appearance of the charging unit 100 corresponding to the charging units (child devices) 1001, 1002,...

  As shown in the figure, the charging unit (slave unit) 100 is formed in a rectangular parallelepiped box shape by left and right side plates 103 and 101 made of, for example, metal plates, a top plate 104, a bottom plate and a back plate not shown.

  The upper front portion of the charging unit (child unit) 100 is a front panel 102 that is slightly inclined (this inclination is not essential). The front panel 102 includes an LED 1021 for displaying information related to charging, an LCD panel, and the like. 1022 and the like are provided.

  The front panel 102 accommodates an electric circuit related to charge control. The electric circuit includes a charging current control circuit that performs control to gradually decrease the charging current supplied from the charging control unit 1100 according to the charging state of the battery of the electric vehicle, and the charging end according to the charging current level. From the charging end detection circuit to be detected, input / output to / from the LED 1021 and the LCD panel 1022, input / output to / from the charging control unit 1100 for information on the charging state, input / output circuit to input / output a control signal of the electric lock 200 described later, etc. Composed.

  The lower part of the charging unit 100 is a compartment 109 that can be opened and closed by a door 105. As shown in the figure, the interior of the compartment 109 has, for example, a triangular cross section composed of two inclined panels.

  An outlet 110 as a charging output means for outputting a charging current is provided on the inclined ceiling portion in the compartment 109, which is connected to a plug of a charging cable (not shown). By arranging the outlet 110 on the inclined ceiling portion in the compartment 109 in this manner, the outlet 110 can be easily viewed, and the charging cable plug and the outlet 110 can be easily combined. The outlet 110 is constituted by a receptacle with a three-terminal drop-off prevention mechanism as shown in the figure, for example.

  The compartment 109 can be opened and closed by a door 105. The door 105 is supported by a hinge 113 so as to be freely opened and closed. A notch 108 for drawing out a charging cable (not shown) connected to the outlet 110 is formed in the lower part of the door 105.

  Further, the door 105 is provided with a window 106 made of a transparent acrylic plate or the like, and the user can visually recognize a charging cable (not shown) and its connection state through the window 106.

  A hook 107 is provided on the right side of the rear surface of the door 105. The hook 107 is for coupling with the electric lock 200 disposed on the side wall inside the compartment 109. Once the door 105 is closed, the door 105 is not opened by the engagement of the hook 107 and the electric lock 200. Locked.

  The door 105 is locked by the electric lock 200 by being closed to a predetermined position at an arbitrary timing, and is locked until it is unlocked by the control described later.

  As described above, the charging unit 100 according to the present embodiment can be locked so that the door 105 is not opened when the door 105 is closed after the plug of the charging cable is connected to the outlet 110. It is possible to prohibit the operation for disconnecting the outlet 110 from being performed.

  On the right side plate 101 of the charging unit 100, a hatch 111 for performing maintenance on the electric lock 200 and a cylinder lock 112 for emergency unlocking the electric lock 200 are arranged.

  Here, the structural example of the electric lock 200 is shown in FIG. FIG. 3 shows an example of the internal configuration of the electric lock 200 in detail.

  The electric lock of the present embodiment is one in which a hook plate 3, a stop plate 4, a lever plate 5, a solenoid 6, rotating shafts 7 to 9, a hook spring 10 and a lever spring 11 are incorporated in a resin case 1.

  A base plate 2009 (outer shape is shown by a two-dot chain line) that constitutes the casing of the electric lock 200 is formed by bending a metal plate or the like so as to surround the resin case 1, and mounting screw holes (long holes) are provided around the base plate 2009. Has a tab penetrated. When such a base plate 2009 is used, a structure such as a claw is provided between the base plate 2009 and the resin case 1 so that the relative positions of the both in particular in the horizontal direction in the figure do not change. Is fixed to the side wall of the compartment 109 by screwing or the like.

  The resin case 1 is appropriately provided with recesses 1c and 1d suitable for accommodating the above-described constituent members, and a cylinder serving as a seat for the rotating shafts 7 to 9 is molded.

  The inner shape of the resin case 1, in particular, the cylinders that serve as seats for the recesses 1 c and 1 d and the rotary shafts 7 to 9 are formed symmetrically with respect to the center line (line that bisects the electric lock 200 in FIG. 3). .

  The rotating shafts 7, 8, and 9 are made of a metal rod or the like planted with respect to a cylinder that serves as a seat for the resin case 1. For example, the hook plate 3, the stop plate 4, and the lever plate 5 made of a metal plate are The rotary shafts 7, 8 and 9 are respectively penetrated through the through holes provided in these plates, and are supported rotatably by using an E-ring or by being prevented from coming off by the base plate.

  The hook plate 3 and the lever plate 5 are respectively provided with a hook spring 10 and a lever spring 11 made of a torsion spring, whereby the hook spring 10 rotates counterclockwise around the rotation shaft 7 and the lever spring 11 rotates. It is urged clockwise around the shaft 9.

  A solenoid 6 is disposed on the right side of the resin case 1 in the figure, and the tip of the armature 6a is engaged with a through hole 5b provided on the arm on the right side of the shaft 9 of the lever plate 5. The solenoid 6 is driven by a drive circuit and a control circuit (not shown), and pulls the right arm of the lever plate 5 upward in the figure by an unlocking signal.

  In the present embodiment, the solenoid 6 performs a momentary operation, and only needs to have a configuration in which the armature 6a is pulled only during driving and the armature 6a is driven by the lever plate 5 in other states. In addition, the recessed part of the resin case 1 which accommodates the solenoid 6 shall also be shape | molded symmetrically with respect to said centerline.

  The hook plate 3, the stop plate 4, and the lever plate 5 are made of a metal plate material, and are configured so that they can be used upside down. In particular, the rotation shafts 7, 8, and 9 are transferred to the resin case 1 to a cylinder that is seated for the rotation shafts 7, 8, and 9 and a cylinder that is line-symmetric with respect to the center line. The charging unit is supported by supporting the hook plate 3, the stop plate 4, and the lever plate 5 turned upside down from the state shown in FIG. 5, and further mounting the solenoid 6 upside down to lock the lever plate 5 and the armature 6 a. An electric lock can be configured for mounting on the opposite side wall of the 100 compartments 109.

  That is, the resin case 1 of the electric lock 200 is formed so as to support the plates 3 to 5 and accommodate the solenoid in two different positions symmetrical with respect to the center line.

  FIG. 3 shows an electric lock for mounting on the left side wall in the compartment 109 of the right hinge. As shown in FIG. 1 and FIG. In such a left hinge compartment 109, an electric lock can be configured for mounting on the right side wall.

  Further, in the configuration of FIG. 3, the lever plate 5 is operated to perform emergency unlocking, so that the round key cylinder 14 that can be operated by the round key 15 and the key plate fixed to the drive rod 14 a of the round key cylinder 14 are used. 13 is arranged.

  The round key cylinder 14 corresponds to the cylinder lock 112 in FIGS. 1 and 2. The round key cylinder 14 is driven by inserting the round key key 15 into the round key cylinder 14 and turning the round key key 15. The right end of the key plate 13 is configured to be lifted upward through the bar 14a. The round key cylinder 14 is disposed on the side or lower side of the compartment 109 of the charging unit 100, and the manager of the charging unit 100 or the like uses the round key key 15 held by the manager of the charging unit 100 when an emergency unlocking or the like is required. By operating the round key cylinder 14, the operation end 5 a at the right end of the lever plate 5 can be pushed upward to unlock the electric lock.

  For convenience of illustration, the drive rod 14a and the key plate 13 are shown along the left and right longitudinal directions in FIG. 3, but the cylinder lock can be obtained by appropriately changing the arrangement and configuration of the drive rod 14a and the key plate 13. 112 can be arranged as shown in FIGS. Further, the conduction mechanism by the drive rod 14a and the key plate 13 can be replaced with a wire or the like as necessary.

  Here, the operation of the electric lock 200 of FIG. 3 will be described.

  As described above, the electric lock 200 according to the present embodiment has a configuration in which the three plates of the hook plate 3, the stop plate 4, and the lever plate 5 are interlocked, and the hook plate 3 is a door (105 in FIGS. 1 and 2). The hook 107 is engaged, and the hook 107 is opened to perform locking / unlocking.

  The hook plate 3 is engaged with the hook 107 of the door (105 in FIGS. 1 and 2) at the portion of the groove 3c to lock the hook 107. The hook plate 3 is an arm portion 3d, 3e, and 3f on the right side of FIG.

  The stop plate 4 has a substantially “7” shape and is interlocked with a notch 5c near the center of the arm on the left side of the lever plate 5 by the arm 4b on the right side of FIG.

  FIG. 3 shows a locked state. When the door (105 in FIGS. 1 and 2) is closed from the state of FIG. 3 and the hook 107 is pushed into the groove 3c, the hook plate 3 and the stop plate 4 are finally obtained. The lever plate 5 is locked in the state shown in the figure. During the transition from the unlocked state to the locked state in FIG. 3, the hook plate 3 and the hook plate 3 are configured so that the arm 4 a of the stop plate 4 slides on the slope of the arm portion 3 e of the hook plate 3 by the clockwise rotation of the hook plate 3. The stop plate 4 is interlocked.

  In the locked state, the arm 4a of the stop plate 4 is engaged with the arm portion 3d of the hook plate 3 to prevent the hook plate 3 from rotating counterclockwise.

  Further, the stop plate 4 has the tip of the arm 4b engaged with the notch 5c of the lever plate 5, thereby preventing the stop plate 4 from rotating clockwise. During the transition from the unlocked state to the locked state, the tip of the arm 4b of the stop plate 4 is pressed from the tip of the left arm of the lever plate 5 to the right while receiving the pressure contact of the lever plate 5 urged clockwise by the lever spring 11. It slides in the direction and shifts to a locked state that engages with the notch 5c.

  At the time of the above locking, the solenoid 6 does not need to be driven. When the user closes the door 105 and pushes the hook 107 into the groove 3c of the hook plate 3, the armature 6a of the solenoid 6 is engaged with the through hole 5b of the lever plate 5. To follow.

  At the time of unlocking, the solenoid 6 is driven through a control circuit (not shown), and the armature 6a is pulled upward in the figure, or in the case of emergency unlocking, the round key 15 is used to hold the right end of the key plate 13 By lifting upward in the figure, the lever plate 5 is rotated counterclockwise against the urging force of the lever spring 11 to disengage the lever plate 5 from the stop plate 4.

  As a result, the stop plate 4 rotates clockwise until the arm 4a of the stop plate 4 is locked to the inner wall of the resin case 1 and stops as shown in FIG. In conjunction with this, the hook plate 3 biased by the hook spring 10 rotates counterclockwise, and the hook 107 of the door 105 is kicked out to the left in FIG. 3 at the groove 3c to pop up the door 105. Let

  At that time, the tip of the arm 4 a of the stop plate 4 slides on the slope of the arm portion 3 f of the hook plate 3. In the final state of FIG. 3, the arm 4a of the stop plate 4 is locked to the arm portions 3e and 3f of the hook plate 3, and the hook plate 3 is prevented from rotating further counterclockwise than the illustrated position. Is done.

  The electric lock 200 of FIG. 3 is locked and unlocked as described above. When the charging job is completed, the solenoid 6 is controlled by the charging control unit 1100 according to the control procedure of FIG.

  FIG. 5 shows a charging job control procedure executed by the charging control unit 1100. The illustrated control procedure is stored in a storage unit such as a ROM or HDD of the charging control unit 1100 and is executed by a main control unit such as a CPU.

  In step S101 in FIG. 5, the user performs a charging job setting operation using the user interface 1000a of the charging unit 1000 (master unit). Here, for example, the charging unit 1001, 1002,... Is specified by inputting the charging unit number or the like. At this time, an authentication process such as presenting an ID card via the authentication device 1000b is required as necessary. In addition, the vehicle type information of the electric vehicle, a desired maximum charging time (or charging end time), and the like are input as necessary via the user interface 1000a. The input vehicle type information of the electric vehicle is used, for example, to determine charging control conditions.

  When the user performs a predetermined operation in step S101, it is determined in step S102 whether or not an appropriate setting operation has been performed. For example, if the authentication by the authentication apparatus 1000b fails or there is an error in the input operation performed via the user interface 1000a, error processing is performed in step S103. For example, an alarm sound is generated according to the error content, or the user displays an error message according to the error content via the user interface 1000a (display unit) of the charging unit 1000 (parent device), or an error Synthetic voices that inform the contents are output.

  In step S104, a charging condition is determined according to the setting operation performed in the charging setting (step S101). For example, when the desired maximum charging time (or charging end time) is input, the time for forcibly ending charging is determined. Further, when the vehicle type information of the electric vehicle is input, whether or not the charging control condition such as the charging current waveform corresponding to the vehicle type of the corresponding electric vehicle is stored in the ROM (or HDD) of the charging control unit 1100. The charging control data is generated so as to control the charging operation using the conditions.

  Until this time, the user connects the plug of the charging cable connected to the electric vehicle to the outlet 110 of the selected charging unit 1001, 1002... (Specified / specified in step S101), and closes the door 105. Shall.

  This plug connection and closing of the door 105 are confirmed in steps S105 and S107, respectively.

  In step S105, it is determined whether or not the plug of the charging cable is connected to the outlet 110 of the charging unit 1001, 1002,... Selected (designated / designated in step S101). This determination can be made by examining whether or not a weak detection current flows via the outlet 110.

  If it is determined that the charging cable plug is selected (specified / specified in step S101) and not connected to the charging unit 1001, 1002,... Outlet 110, a connection request is made to the user in step S106. . For example, an alarm sound or the like is generated in the charging unit 1000 (master unit), the user interface 1000a (indicator thereof) of the charging unit 1000 (master unit), or the LED 1021, LCD panel of the charging unit 1001, 1002,. To display an error message such as “The charging plug is not connected. Please connect the charging plug to the outlet of the charging unit XX”. Or you may output the synthetic voice etc. which alert | report the same error content.

  If it is confirmed that the plug connection state is normal, it is determined in step S107 whether or not the door 105 of the charging unit 1001, 1002,. This determination detects whether the door 105 is closed and the electric lock 200 is in a locked state by detecting the rotation position of the hook plate 3 or the like by a limit switch or the like disposed inside the electric lock 200. Can be done.

  At this stage, when the door 105 is closed and it is detected by the electric lock 200 that the door is not locked, a closing request is made to the user in step S108. For example, an alarm sound or the like is generated in the charging unit 1000 (master unit), the user interface 1000a (indicator thereof) of the charging unit 1000 (master unit), or the LED 1021, LCD panel of the charging unit 1001, 1002,. To display an error message such as “Please close the door of the charging unit XX”. Or you may output the synthetic voice etc. which alert | report the same error content.

  As described above, the plug connection state and the closed state of the door 105 are confirmed in steps S105 and S107. At this time, the electric lock 200 is locked so that the door 105 is not opened (step S109).

  In steps S110 to S111, the charging control unit 1100 supplies a charging current to the charging units 1001, 1002,..., Starts a charging operation, and monitors the charging operation. During charging, information indicating the charging state is output using the LED 1021 of the charging unit 1001, 1002,. Here, for example, a notification operation for displaying information indicating that the battery is being charged and a scheduled end time is performed.

  The charge monitoring operation in step S110 includes, for example, determining whether the outlet 110 is in an open state. In addition, detection of the end of charging in step S111 is performed by detecting whether or not the charging current has fallen to a predetermined range and the state has continued for a predetermined period of time. If it is known, the conditions stored in the ROM or HDD are used according to the vehicle type). When an error such as the outlet 110 being in an open state is detected, error processing (not shown) is executed in the same manner as described above.

  When the end of charging is detected in step S111, the output of the charging current to the charging units 1001, 1002,... Is stopped, and then in step S112, the solenoid 6 of the electric lock 200 is driven to unlock the electric lock 200. Then, the doors 105 of the charging units 1001, 1002,.

  As described above, according to the present embodiment, while the charging job is being executed, the door 105 of the charging unit 1001, 1002... Is locked and the charging cable is charged due to an accident such as a tripping of the charging cable. It is difficult to pull out from the unit, and it is possible to reliably prevent the charging cable being charged from being pulled out of the charging unit due to mischief or the like.

  That is, according to the present embodiment, the door 105 that covers the outlet 110 serving as the charging output means via the electric lock 200 during the period of performing the charging operation of the electric vehicle via the charging output means of the charging units 1001, 1002,. Can be controlled in a locked state so as not to open the battery, and it is possible to prevent the charging cable from being disconnected from the charging units 1001, 1002,... Electric car can be charged.

  Further, in the above, prior to the charging operation, whether or not the door 105 is closed is detected via an electric lock, and if the door 105 is not closed, an error message that warns that effect is detected. Is output so that the charging job is not started (steps S107 and S108), and whether or not the charging cable and the charging output means are connected is detected, and the charging output means is connected. If not, it is controlled to output an error message to warn that effect, so that the charging cable can be prevented from falling off by the door 105, and the charging cable can be connected to the user securely. Since the charging job can be started, the electric vehicle can be reliably charged.

  In the above, the whole is configured as a master unit / slave unit system including a charge control unit (master unit) including a main power source and a charging unit (slave unit) for charging individual electric vehicles. However, it is needless to say that the present invention can also be implemented in a charging system with a stand-alone configuration. For example, one of the charging units 1001, 1002,... In FIG. 4 has the configuration shown in FIGS. 1 and 2, and the above-described configuration is also obtained by further integrating the charging unit 1000 (master unit) and the charging control unit 1100. Needless to say, charge control can be performed.

DESCRIPTION OF SYMBOLS 100 Charging unit 102 Front panel 105 Door 106 Window 107 Hook 108 Notch 109 Compartment 110 Outlet 111 Hatch 112 Cylinder lock 113 Hinge 200 Electric lock 1000 Charging unit (main unit)
1021 LED
1022 LCD panel 1100 Charge control unit 1200 Commercial AC power supply

Claims (3)

A charger unit having a charging output means for connecting a charging cable for charging a battery of an electric vehicle and outputting a charging current; and
A door that covers the accommodation portion of the charging output means of the charger unit so as to be freely opened and closed;
An electric lock that unlocks or locks the door;
A charging control unit for controlling a charging operation performed via the charging output means of the charger unit;
The charging system for an electric vehicle, wherein the charging control unit controls the door to be locked through the electric lock at least during a period during which a charging operation is performed through the charging output means.   Prior to the charging operation, the charging control unit detects whether or not the door is closed via the electric lock, and warns that the door is not closed. 2. The electric vehicle charging system according to claim 1, wherein an error message is output.   Prior to the charging operation, the charging control unit detects whether or not the charging cable and the charging output means are in a connected state, and if the charging output means is not in a connected state, this is indicated. The electric vehicle charging system according to claim 1 or 2, wherein an error message for warning is output.

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