Charging connector holder

Abstract

To reliably and easily lock a charge connector held in a holder, and reliably and easily release the lock.SOLUTION: A holder H includes an electric lock 4 consisting of a latch 41 and a coil spring 42, a lock lever 43 and a coil spring 44, a solenoid 45, a guide lever 46 and a coil spring 47, and a trigger 48, and the electric lock 4 locks and unlocks the latch 41 that presses and holds the engaged state between a hook 93 and a hook engaging portion 3.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a holder for a charging connector that is attached to the end of a charging cable from a power source and is used to charge the onboard battery of an electric vehicle such as an electric vehicle (EV) or a plug-in hybrid vehicle (PHV), and is used to hold the charging connector on an installation surface such as the surroundings of a charging device or on the wall of a building or fence. [Background technology]

[0002] In recent years, as electric vehicles powered by electric motors, such as electric cars and plug-in hybrid cars, have become increasingly popular, power supply stations (also called charging stands) that place charging devices in public spaces along public roads and in private facilities are being established to supply electricity to these electric vehicles, and charging devices are also being installed in parking lots of ordinary homes and apartment buildings.This type of charging device comprises the charging device main unit, a charging cable connected to the main unit, and a charging connector attached to the end of the charging cable, and charging is performed by connecting the charging connector to a charging port provided on various electric vehicles.

[0003] An overview of a typical charging connector is shown in Figure 11. As shown in Figure 11, charging connector 9 has a generally cylindrical body 90, a cylindrical power supply fitting 91 that protrudes axially from one axial end of body 90 and has multiple terminals arranged on the opening at the tip, and a grip 92 that extends diagonally from the other axial end of body 90. The charging connector 9 is configured as a gun-shaped unit. Inserting power supply fitting 91 into an inlet provided in a charging port of an electric vehicle electrically connects the charging connector 9 to the onboard battery of the electric vehicle. To mechanically connect charging connector 9 to the charging port of the electric vehicle, a hook 93 is provided on the outside of power supply fitting 91 at one axial end of body 90. This hook 93 engages with a hook engaging portion provided in the charging port of the electric vehicle to maintain the connection between charging connector 9 and the charging port of the electric vehicle. The hook 93 has a protrusion 931 at its tip that protrudes toward the outer periphery of the power supply fitting 91. The tip of the hook 93 is configured to be able to move forward and backward in the direction of protrusion of the protrusion 931, and the protrusion 931 is normally pressed toward the power supply fitting 91 by the biasing force of a spring 94. A release button 95 for releasing the pressed state of the hook 93 is provided on the body 90 at the base end of the hook 93. When a user presses the release button 95, the hook 93 moves away from the outer periphery of the power supply fitting 91 against the biasing force of the spring 94, thereby releasing the engagement between the hook engagement portion of the charging port of the electric vehicle and the protrusion 931. In addition, in this charging connector, a protrusion 96 is provided axially at the bottom of the power supply fitting 91, which can engage with a recess formed as a guide in the charging port of the electric vehicle. A charging cable C is connected to the lower end of the grip 92 of the charging connector 9. The charging cable C consists of a power supply cable for supplying power and a communication cable for inputting and outputting control signals, and its base end is connected to the power supply unit of the charging device in the case of a charging device, and when using a general household power source, a plug is attached so that it can be connected to a power outlet.

[0004] Incidentally, whether in the case of a power supply station or in an ordinary home, when the charging device is not in use, a holder is needed to protect and hold the power supply fitting of the charging connector at a height within reach around the charging device, on the wall of a building or fence, and also to wrap around the charging cable.

[0005] This type of charge connector holder is proposed, for example, in Patent Document 1. The charging connector holder in this document includes a base secured to the charging device body with a set screw and a holder body attached to the front side of the base, and is generally box-shaped and elongated in the vertical direction. The holder body has a recess at its top for circling the charging cable, and a diagonally tapered portion at the front corner of the holder body's lower portion, which houses a holding portion (connector holding portion) into which the mating portion (power supply mating portion) of the charging connector is inserted and connected. The holding portion has a generally circular bottom and a side portion protruding from the periphery of the bottom in a direction perpendicular to the bottom, forming a circular hole that opens into the tapered portion. The inner diameter of the holding portion is slightly larger than the outer diameter of the mating portion of the charging connector, and it opens diagonally downward and forward, allowing the mating portion to be inserted and connected to this holding portion from below. The front of the holder body has a recess above the holding portion into which the hook of the charging connector is inserted, and a protrusion is provided inside this recess to engage the claw of the hook. In addition, above the recess on the front of the holder body, a hood is integrally provided that is inclined so that it protrudes more forward the lower it is, making it difficult for rainwater and other liquids to enter the recess or holding portion.

[0006] In this way, the holder body is attached to the periphery of the charging device via the base with multiple screws. To hold the charging connector in the holder body, insert and push the mating portion of the charging connector into the holding portion of the holder body. This inserts the hook into the recess, and the hook's latching claw engages with the protrusion in the recess, securing the charging connector to the holder body. The charging cable is wound from the top of the holder body into the upper recess. To remove the charging connector from the holder body, press the release button to disengage the hook from the protrusion in the recess, and then pull the charging connector out of the holding portion.

[0007] Furthermore, in the case of this holder, a disk-shaped knob with a three-digit dial key is provided on the front of the holder body. A restriction piece made of a long metal plate is screwed to the rotating shaft of this knob, and a resin cover is attached to the tip of this restriction piece. If the three-digit number on the dial key matches a predetermined number, the knob can be rotated, and turning the knob forward or backward rotates the restriction piece forward or backward. The restriction piece is rotatable between a predetermined locking position and an unlocking position. In this way, after the user inserts the charging connector into the holder body, they turn the knob to move the restriction piece to the predetermined restriction position and lock it using the dial key, and the hook of the charging connector hits the cover at the tip of the restriction piece and cannot move in a direction away from the protrusion. The charging connector is locked in place in the holder body. When the user operates the dial key to unlock the charging connector in this locked state, the knob becomes rotatable. After unlocking, the user can turn the knob to move the restricting piece to the release position and then press the release button on the charging connector to move the hook away from the protrusion, allowing the charging connector to be removed from the holder body. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Patent Publication No. 2013-093918 Summary of the Invention [Problem to be solved by the invention]

[0009] As described above, this type of charging connector holder is attached to the periphery of a charging device (main body) or to the wall of a building or fence, etc., to protect and hold the power supply fitting of the charging connector when the charging device is in standby mode, i.e., when the charging device is not in use, and to wrap and organize the charging cable. In this case, since the charging connector, particularly in the case of a fast charging device, has an output of tens of kilowatts and flows hundreds of amperes and hundreds of volts of direct current, it is not only necessary for the charging connector to be securely held in the holder main body when the charging device is in standby mode, but also desirable for the charging connector to be locked while held in the holder main body from the standpoint of preventing tampering or unauthorized use of the charging connector and preventing damage to the charging connector, and also from the standpoint of safety, since the electrodes at the tip of the charging connector are exposed, so that the charging connector is not left unattended.

[0010] However, with dial locks like the conventional charging connector holders described above, and even with regular cylinder locks that use keys, managing the PIN numbers and keys is difficult and impractical for use with charging devices at power supply stations used by an unspecified number of users or charging devices in apartment parking lots used by many users.Furthermore, there is a problem in that such manual locking units cannot be used in conjunction with charging devices when a billing system is introduced to the charging device.

[0011] The present invention aims to solve such conventional problems by providing a holder for this type of charging connector with a locking type that is optimal for use with charging devices at power supply stations used by an unspecified number of users or charging devices in apartment parking lots used by many users, and that can reliably and easily lock (lock) the state in which the charging connector is held in the holder body, and can reliably and easily release this locked state. [Means for solving the problem]

[0012] In order to achieve the above object, the present invention provides: a connector holder including: a connector holding portion connectable to a power supply fitting of a charging connector for connection to a charging port of an electric vehicle; and a hook engaging portion disposed adjacent to the periphery of the power supply fitting of the charging connector for engaging with a hook engaging portion of the charging port of the electric vehicle, the hook engaging portion being normally biased by a spring toward the outer circumferential surface of the power supply fitting and engageable with a hook that is movable in a direction away from the outer circumferential surface of the power supply fitting by operating a release button provided on the charging connector; and the charging connector holder is configured to connect the power supply fitting of the charging connector to the connector holding portion by aligning the power supply fitting of the charging connector with the connector holding portion, aligning the hook with the hook engaging portion, and inserting the charging connector into the connector holding portion, thereby connecting the power supply fitting of the charging connector to the connector holding portion and engaging the hook with the hook engaging portion, an electric lock that locks the engagement state between the hook and the hook engagement portion; The electric lock is a latch having a lock groove on its circumferential surface and disposed around the hook engaging portion so as to be able to advance and retreat toward the hook engaging portion and to hold the hook from behind; and a latch pressing and biasing spring member that presses and biases the latch toward the hook engaging portion in a normal state so as to be able to hold and hold the hook; a locking direction in which the locking claw is directed toward the surface of the circumferential surface of the latch having the locking groove, the locking claw having a locking claw that can be engaged with the locking groove of the latch at one end; Away from the surface having the lock groove a lock lever that is pivotally supported in an unlocking direction and that is engageable with the lock groove of the latch when the latch is at a position where the hook is pressed down by the latch; and a spring member for biasing the lock lever to rotate in the locking direction in a normal state; a solenoid that is installed on the other end side of the lock lever, has a plunger operatively connected to the other end of the lock lever, and drives the lock lever in the unlocking direction when energized; a guide lever that is pivotally supported on one end side of the lock lever so as to be rotatable in the same direction as the lock lever, and has one end operatively connected to one end of the lock lever, and that rotationally guides the lock lever in the locking direction or the unlocking direction; and a guide lever rotationally biasing spring member that has a spring force greater than that of the lock lever rotationally biasing spring member and that rotationally guides the lock lever in the unlocking direction with the guide lever in a normal state and rotationally biases the lock lever so as to maintain the unlocked state of the lock lever. a trigger that is disposed within the connector holding portion so as to be able to advance and retreat in a direction in which the power supply fitting of the charging connector is inserted into and removed from the connector holding portion, one end of which protrudes outside the connector holding portion and is operatively connected to the other end of the guide lever, and the other end of which protrudes into the connector holding portion so as to be pressable by the power supply fitting of the charging connector, and which rotationally guides the lock lever in the lock direction via the guide lever when the other end is pressed; Equipped with When the power supply fitting portion of the charging connector is connected to the connector holding portion, the hook engaged with the hook engaging portion is pressed down by the latch, and the latch is locked by the engagement between the lock groove of the latch and the lock claw of the lock lever, When the solenoid is energized, the latch is unlocked. The gist of this is as follows.

[0013] This charging connector holder also has an emergency unlocking unit attached to the electric lock, and the unlocking unit is attached in parallel to the connector holding part and has a keyhole at one end, and a cylinder lock of the type in which a key is inserted into the keyhole to rotate the rotor, and - The rotor is - and an unlocking lever attached to the rotor so as to be rotatable together with the rotor, which is engaged with the locking lever by rotation of the rotor and rotates the locking lever in the unlocking direction. [Effects of the Invention]

[0014] The charging connector holder of the present invention, with the above-described configuration, provides the following exceptional effects unique to the present invention. That is, with this holder, the power supply fitting of the charging connector is aligned with the connector holding portion, and the hook and hook engagement portion are aligned. The charging connector is inserted into the connector holding portion while the hook presses the latch against the spring force, connecting the power supply fitting of the charging connector to the connector holding portion, engaging the hook and hook engagement portion, and the latch presses down on the hook from behind to hold it in place. The latch is then locked with the lock lever of the electric lock. This configuration allows the charging connector to be held in the holder by simply inserting and pushing the charging connector into the holder, and automatically locks the held state. This realizes a locking system that is ideal for use with charging devices at power supply stations used by an unspecified number of users or charging devices in apartment parking lots used by many users, and also allows the charging connector to be reliably and easily locked while held in the holder. Furthermore, by passing electricity through the solenoid of the electric lock, the lock lever is rotated in the unlocking direction, thereby unlocking the hook. Therefore, for example, by reading a contact or contactless IC card with a card reader or by using the functions of a mobile terminal such as a smartphone to send an electrical signal to the controller side of the solenoid, the locked state between the charging connector and its holder can be automatically released with a simple operation using a contact or contactless IC card or smartphone. This lock type is ideal for use in charging devices at power supply stations used by an unspecified number of users, or in charging devices in apartment parking lots used by many users, and can reliably and easily release the locked state between the charging connector and its holder. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view showing the appearance of a holder for a charging connector according to an embodiment of the present invention together with a charging connector; [Figure 2] FIG. 10 is a side cross-sectional view showing the configuration of the holder together with the configuration of the main part of the charging connector. [Figure 3] A rear view showing the configuration of the holder [Figure 4] A diagram showing an example of normal use of the holder (before the charging connector is attached to the holder) [Figure 5] A diagram showing an example of normal use of the holder (the charging connector is inserted into the holder and is in the middle of being inserted) [Figure 6] A diagram showing an example of normal use of the holder (when the charging connector is inserted into the holder, the hook and hook engagement part are engaged, and the hook is pressed down by the latch and locked). [Figure 7] A diagram showing an example of normal use of the holder (the latch that holds down and locks the hook of the charging connector held in the holder is unlocked by energizing the electric lock) [Figure 8] A diagram showing an example of normal use of the holder (after unlocking the latch that holds and locks the hook of the charging connector held in the holder, the charging connector is pulled out from the connector holding part, and the state is in the middle of being pulled out) [Figure 9] A diagram showing an example of normal use of the holder (after the latch that holds and locks the hook of the charging connector held in the holder is unlocked, the charging connector is pulled out of the connector holding part, and the state of removal is complete) [Figure 10] Figure showing an example of using the holder's emergency unlocking unit ((1) shows the state before unlocking, and (2) shows the state after unlocking). [Figure 11] A diagram showing a typical charging connector used to charge the onboard batteries of electric vehicles (EVs) and plug-in hybrid vehicles (PHVs) DETAILED DESCRIPTION OF THE INVENTION

[0016] Next, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows the appearance of a holder for a charging connector together with the main parts of the charging connector. Figs. 2 and 3 each show the configuration of the holder for a charging connector. The configuration of the charging connector 9 shown in Figures 1 and 2 has already been described. In the following description, "power supply fitting 91 of charging connector 9" or "power supply fitting 91" refers to "a power supply fitting of a charging connector for connecting to a charging port of an electric vehicle, such as an electric car or a plug-in hybrid car," "hook 93 of charging connector 9" or "hook 93" refers to "a hook that is arranged close to the periphery of the power supply fitting of the charging connector to engage with a hook engagement portion of the charging port of the electric vehicle, is normally biased toward the outer surface of the power supply fitting by a spring, and can be moved away from the outer surface of the power supply fitting by operating a release button on the charging connector," and "protrusion 96" refers to "a protrusion that can engage with a recess formed on the lower part of the power supply fitting as a guide in the charging port of the electric vehicle." Please refer to Figure 11 if necessary.

[0017] As shown in Figures 1 and 2, charging connector holder H comprises a holder main body 1 which forms the outer shape of holder H and into which the various functional parts of holder H are incorporated, and as the functional parts of holder H, a connector holding part 2 to which a power supply fitting 91 of charging connector 9 can be connected, and a hook engaging part 3 which can engage with a hook 93 of charging connector 9. By aligning power supply fitting 91 of charging connector 9 with connector holding part 2 and aligning hook 93 with hook engaging part 3, and then pushing and inserting charging connector 9 into connector holding part 2, power supply fitting 91 of charging connector 9 is connected to connector holding part 2 and hook 93 is engaged with hook engaging part 3, thereby holding charging connector 9.

[0018] This charge connector holder H is also provided with an electric lock 4 that locks the engagement between the hook 93 and the hook engagement portion 3, and an emergency lock release unit 5.

[0019] In this holder H for a charging connector (hereinafter simply referred to as holder H), the holder main body 1 is composed of a holder base 11 that is fixed using mounting screws to a holder installation surface such as the area around the charging device or the wall of a building or fence, and a holder case 12 that is attached to the front side of the holder base 11 using mounting screws and has a connector holding portion 2 that opens at the bottom of the front portion 121 and can hold the power supply fitting portion 91 of the charging connector 9, a hook engagement portion 3 that opens at the middle of the front portion 121 in the vertical direction and can be engaged with the hook 93 of the charging connector 9, and an unlocking unit mounting portion 130 that opens close to the hook engagement portion 3 on the front portion 121 and can be fitted with an emergency unlocking unit 5.

[0020] The holder base 11 is a vertically long, approximately flat plate made of a metal material such as stainless steel, with an upper edge formed into a large arc and a lower edge formed into a small arc, and the entire holder base 11 is tapered to gradually narrower from top to bottom. A portion P1 on the upper side of the holder base 11 forms a part of a suspension portion 1221 for the charging cable, and its lower portion is an attachment portion P2 for the holder case 12. A receiving portion 111 for the holder case 12 is formed on the upper portion P1, and a plurality of screw insertion holes (not shown) are drilled at appropriate positions. The receiving portion 111 on the holder base 11 side is formed in a generally L-shaped cross section at the center of the upper portion of the attachment portion P2 of the holder base 11. The receiving portion 111 has a horizontal portion 111a that is continuous with the front surface of the attachment portion P2 and extends in the width direction of the holder base 11, and a vertical portion 111b that rises from the front end of the horizontal portion 111a and extends in the width direction of the holder base 11, and an insertion port is formed through the horizontal portion 111a along the extending direction.

[0021] The holder case 12 is made of a synthetic resin material such as polyester plastic, and has a front surface 121, a top surface 122, left and right side surfaces 123 and 124, and a bottom surface 125. The rear surface 126 is open, and the entire holder case 12 is formed so that it can be attached to the attachment portion P2 of the holder base 11. The top surface 122 is formed in a generally arc shape that gradually slopes downward from the center in the left-right direction to both left and right sides as the remaining portion of the suspension portion 1221 of the charging cable C connected to the charging connector 9, and an upper end 121t of the front surface 121 extends above the height of the top surface 122, and forms a generally concave shape together with a portion P1 of the upper side of the holder base 11 (when the holder base 11 and holder case 12 are assembled). The left and right side portions 123, 124 are each formed to gradually widen from bottom to top, with the upper side of the front portion 121 being the furthest from the holder base 11, and the front portion 121 forming an inclined surface (i.e., a downward inclined surface) that gradually approaches the holder base 11 from the upper side to the lower side. The suspension portion 1221, connector holding portion 2, and hook engaging portion 3 of the upper surface portion 122 are each formed at right angles to this front portion 121, and these suspension portion 1221, connector holding portion 2, and hook engaging portion 3 are formed obliquely with the holder base 11 side higher and the front portion 121 side lower (i.e., the front portion 121 side is obliquely facing downward).

[0022] In this holder case 12, the connector holding portion 2 is opened at the bottom of the front surface 121 of the holder case 12, extends to the opening (surface) of the rear surface 126 of the holder case 12 so as to be able to abut against the front surface of the mounting portion P2 of the holder base 11, and is formed in a bottomed cylindrical shape with the end surface on the rear surface 126 side of the holder case 12 as the bottom. In this case, the connector holding portion 2 has a small-diameter cylindrical portion in the center of the bottom, and the bottom is made up of this central cylindrical portion and a flat portion surrounding this cylindrical portion, and this cylindrical portion extends to the opening (surface) of the rear surface 126 of the holder case 12. In this bottom portion, an insertion hole 21 is formed in the flat portion surrounding the cylindrical portion, in this case, in the upper portion, so that a trigger 48 (described later) can be inserted therethrough. A groove 22 is formed in the axial direction at the bottom of the inner peripheral surface of the connector holding portion 2, and a convex portion 96 provided at the bottom of the power supply fitting 91 of the charging connector 9 can engage with this groove 22.

[0023] In addition, in this holder case 12, the hook engagement portion 3 has a recess 31 formed immediately above the connector holding portion 2 on the front surface 121 of the holder case 12, and a locking hole 30 formed in approximately the center of the innermost surface of the recess 31. The recess 31 is formed by expanding the periphery of the locking hole 30 to a shape and size corresponding to the outermost surface of the hook 93 of the body 90, in particular, so that the outermost surface of the hook storage portion 901 of the body 90 can fit into the recess 31, whether it is for the charging connector 9 or a charging connector of another model. The locking hole 30 is formed on the innermost surface of the recess 31 so that the hook 93 of the charging connector 9 can be inserted therein and locked therein. In this case, the inner surface of the lower edge of the locking hole 30 (the inner surface of the lower edge of the locking hole 30 when viewed from inside the holder case 12) serves as the locking surface for the hook 93. Furthermore, inside this recess 31, a convex portion having a downwardly inclined surface facing forward at its tip is formed on the outside of the lower edge of the locking hole 30, and this serves as a guide portion 32 that guides the hook 93 of the charging connector 9 to move to the inner surface (locking surface) of the lower edge of the locking hole 30. The engagement surface for the hook 93 of the charging connector 9 extends from the upper surface, including the inclined surface at the tip of this guide portion 32, to the inner surface (locking surface) of the lower edge of the locking hole 30.

[0024] Furthermore, in this holder case 12, an unlocking unit attachment portion 130 is provided on the front surface portion 121 in the vicinity of the hook engagement portion 3. In this case, as this attachment portion 130, a hole is formed on one side, in this case the right side, above the hook engagement portion 3 of the front surface portion 121 so that the unlocking unit 5 can be inserted and attached.

[0025] In this way, a connector holding portion 2, a hook engagement portion 3 and an unlocking unit mounting portion 130 are formed on the front portion 121 of the holder case 12, and an electric lock mounting portion and an unlocking unit mounting portion are provided behind the hook engagement portion 3 and the unlocking unit mounting portion 130 inside the holder case 12, respectively.

[0026] In addition, this holder case 12 has a locking portion 14 on the holder case 12 side formed at the upper part of the case in correspondence with the receiving portion 111 on the holder base 11 side, protruding toward the opening on the rear surface 126 of the holder case 12 so as to be able to engage with the receiving portion 11 on the holder base side. In this case, the locking portion 14 on the holder case 12 side is formed from a rigid metal material such as stainless steel and has a substantially L-shaped cross section, and comprises a protruding portion 141 extending from the front surface 121 side of the holder case 12 to the opening on the rear surface 126, and a claw portion 142 formed in a hook shape at the end of the protruding portion 141 on the rear surface 126 side so as to be able to engage with the receiving portion 111 on the holder base side through an insertion opening. In addition, a plurality of screw insertion portions are formed at appropriate positions in the case so as to be able to communicate with each screw insertion portion on the holder base 11 side.

[0027] The electric lock 4 is attached to the electric lock attachment portion of this holder case 12. The electric lock 4 is composed of a latch 41, a spring member 42 for pressing the latch, a lock lever 43 and a spring member 44 for urging the lock lever to rotate, a solenoid 45, a guide lever 46 and a spring member 47 for urging the guide lever to rotate, a trigger 48, and an emergency lock release unit 5.

[0028] The latch 41 has a lock groove 410 on its peripheral surface and is arranged around the hook engagement portion 3 inside the holder case 12 so as to be able to advance and retreat toward the hook engagement portion 3 and to hold the hook 93 of the charging connector 9 from behind.

[0029] In this case, the latch 41 is made of a block having a rectangular shape in horizontal cross section, with a length approximately equal to or slightly smaller than the diameter of the locking hole 30 of the hook engaging portion 3 and a width slightly larger than the width of the hook 93 of the charging connector 9. Note that the latch 41 may also be plate-shaped. The lock groove 410 is formed on the back surface of the latch 41, in other words, on the surface facing the opening of the rear surface 126 of the holder case 12 when the latch 41 is attached inside the holder case 12, in the longitudinal (vertical) central portion thereof so that a lock claw 43L of a lock lever 43 (described later) can be engaged therewith. In this case, the lock groove 410 is formed in the vertical center of the back surface of the latch 41, so that the lock claw 43L can be fitted into the lock groove 43L, and has a substantially arcuate shape in side view and a substantially linear shape in rear view. Note that the front tip (lower end) of the latch 41 forms a guide surface that slopes downward toward the front (downward).

[0030] In this case, a latch guide 411 is provided to guide the movement of the latch 41 to the electric lock mounting portion inside the holder case 12. This latch guide 411 is formed in a substantially rectangular cylindrical shape around the hook engaging portion 3 at a position facing the hook engaging portion 3 at the top of the inner surface of the recess 31 so that the latch 41 can be inserted and fitted in a direction substantially perpendicular to the hook engaging portion 2. In this case, the latch guide 411 has a convex portion formed on the inner surface of the front portion 121 of the holder case 12, and a plate is attached behind this convex portion, and is defined between this convex portion and the plate (an intermediate plate portion described below). This plate also serves as a mounting plate for each part of the electric lock 4, and consists of an intermediate plate portion parallel to the front portion 121 of the holder case 12, a pair of upper bearing plate portions extending from the upper left and right parts of the intermediate plate portion toward the opening in the rear portion 126, a pair of lower bearing plate portions extending from the lower left and right parts of the intermediate plate portion toward the opening in the rear portion 126, an upper plate portion extending from the upper end of the intermediate plate portion toward the front portion 121, a lower plate portion extending from the lower end of the intermediate plate portion toward the opening in the rear portion 126, and a lower extension plate portion extending downward at a right angle from the end of the lower plate portion.

[0031] In this way, the latch 41 is inserted into the latch guide 411 formed in the electric lock mounting portion within the holder case 12, and is capable of pressing down the hook 93 of the charging connector 9 from behind (above) and moving forward and backward toward the hook engagement portion 3.

[0032] The latch pressing and biasing spring member 42 presses and biases the hook 93 of the charging connector 9 toward the hook engaging portion 3 so as to be able to hold and retain the hook 93 when the latch 41 is in a normal state, and is provided close to the mounting position of the latch 41 and operatively connected to the latch 41. In this case, a coil spring (hereinafter referred to as the coil spring 42) is used as the spring member 42, and the coil spring 42 is interposed between the rear end of the latch 41 and the upper portion of the latch guide 411 (the upper plate portion of the mounting plate).

[0033] In this way, the latch 41 is inserted into the latch guide 411 provided in the electric lock mounting portion inside the holder case 12, and a coil spring 42 for pressing the latch is interposed between the rear end of the latch 41 and the upper part of the latch guide 411, so that the hook 93 of the charging connector 9 can be pressed and held from behind (above).

[0034] The lock lever 43 has a lock claw 43L at one end that can engage with the lock groove 410 of the latch 41, and is pivotally supported so that the lock claw 43L can rotate in a locking direction toward the surface of the circumferential surface of the latch 41 that has the lock groove 410, or in the opposite unlocking direction, and can engage with the lock groove 410 of the latch 41 at the position where the latch 41 holds down the hook 93.

[0035] In this case, the lock lever 43 is a generally U-shaped plate comprising an upper part 431 extending obliquely downward from the front face 121 side of the holder case 12 toward the opening of the rear face 126, and a lower part 432 extending downward from the middle of the lower edge of the upper part 431, and has a pair of rotation shafts 433 protruding toward both the left and right sides from the upper part of the lower part 432 directly below the upper part 431, and a pair of guide pins 434 protruding toward both the left and right sides from the lower part of the lower part 432. The lock claw 43L has a shape similar to a trapezoid in side view, is formed integrally with the lower part of the front edge of the lower part 432, and protrudes forward (toward the front face 121 of the holder case 12) in a generally arc shape.

[0036] The lock lever 43 is attached between a pair of bearing plate portions on the upper part of the mounting plate, via a pair of rotation shafts 433, so as to be rotatable in the front-rear direction.

[0037] In this way, the lock claw 43L of the lock lever 43 can engage with the lock groove 410 of the latch 41 at the position where the hook 93 is pressed down by the latch 41.

[0038] The spring member 44 for biasing the lock lever to rotate biases the lock lever 43 to rotate in the lock direction in the normal state, is provided close to the mounting position of the lock lever 43, and is operatively connected to the lock lever 43. In this case, a coil spring (hereinafter referred to as the coil spring 44) is used for this spring member 44, and the coil spring 44 is wound around the circumferential surface of each rotation shaft 433 of the lock lever 43, with one end engaged with a spring receiver on the mounting plate and the other end engaged with a spring receiver on the upper part 431 of the lock lever 43 so as to be able to bias the upper part 431 of the lock lever 43 to rotate rearward.

[0039] In this way, the lock lever 43 is supported between a pair of bearing plate portions at the top of the mounting plate attached to the electric lock mounting portion within the holder case 12, and a coil spring 44 is interposed between the mounting plate and the top 431 of the lock lever 43, so that the lock lever 43 can be urged to rotate in the locked direction (engagement of the lock claw 43L with the lock groove 410 of the latch 41) in the normal state.

[0040] The solenoid 45 is installed on the other end side of the lock lever 43, and a plunger 451 is operatively connected to the other end of the lock lever 43, and when energized, drives the lock lever 43 in the unlocking direction.

[0041] In this case, solenoid 45 is a general-purpose product and is made up of a main body 45S and a plunger 451 that protrudes from one end of main body 45S and is driven to move forward and backward. This solenoid 45 is installed on the upper plate portion of a mounting plate installed in an electric lock mounting portion inside holder case 12, with plunger 451 facing the opening in rear surface portion 126, and is electrically connected via wiring to a controller of the charging connector holder (not shown).

[0042] In this way, the solenoid 45 is installed on the upper plate portion of the mounting plate provided in the electric lock mounting portion within the holder case 12, and when electricity is applied, the plunger 451 is pulled forward (toward the front portion 121 of the holder case 12), driving the lock lever 43 in the unlocking direction.

[0043] The guide lever 46 is pivotally supported on one end side of the lock lever 43 so as to be rotatable in the same direction as the lock lever 43, and one end is operatively connected to one end of the lock lever 43 (the end on the lock claw 43L side), thereby guiding the lock lever 43 to rotate in the locking direction or the unlocking direction.

[0044] In this case, the guide lever 46 is composed of a pair of left and right plates 461 that are long in the vertical direction, and a plate 462 that connects these plates 461 at the vertical center. Each of the left and right plates 461 has a wide upper portion, and a guide hole 4610 for the lock lever 43 is formed in this upper portion as an elongated hole that is long in the horizontal direction (the front-to-back direction when attached to the electric lock attachment part in the holder case 12) and has an arc-shaped lower portion, and a narrow lower portion, and a guide hole 4620 for the trigger 48 is formed in this lower portion as an elongated hole that is long in the vertical direction (the up-down direction when attached to the electric lock attachment part in the holder case 12). Each of the left and right plates 461 has a pair of rotation shafts 463 that protrude toward both the left and right sides at the vertical center portion.

[0045] This guide lever 46 is mounted between a pair of bearing plate portions at the bottom of the mounting plate described above, via a pair of rotation shafts 463, so as to be rotatable in the front-to-rear direction, and each guide pin 434 at the bottom 432 of the lock lever 43 is passed through and engaged with the upper guide hole 4610.

[0046] In this way, the guide lever 46 is operatively connected to the lock lever 43 by the engagement between each guide hole 4610 at the top and each guide pin 434 at the bottom of the lock lever 43, and is able to guide the lock lever 43 to rotate in the locking direction or the unlocking direction.

[0047] The spring member 47 for biasing the guide lever to rotate has a spring force greater than that of the spring member 44 for biasing the lock lever to rotate, and is provided close to the mounting position of the guide lever 46, so as to guide the lock lever 43 to rotate in the unlocking direction with the guide lever 46 in its normal state, and biases the lock lever 43 to maintain the unlocked state, and is operatively connected to the guide lever 46. In this case, a coil spring (hereinafter referred to as the coil spring 47) is used for this spring member 47, and the coil spring 47 is wound around the circumferential surface of each rotation shaft 463 of the guide lever 46, with one end engaged with a spring bearing on the mounting plate, and the other end engaged with a spring bearing on the upper part of each plate 461 of the guide lever 46 so as to bias the upper part of the guide lever 46 to rotate rearward.

[0048] In this way, the guide lever 46 is supported between a pair of bearing plate portions at the bottom of the mounting plate attached to the electric lock mounting portion within the holder case 12, and a coil spring 47 is interposed between the mounting plate and the top of the guide lever 46, and is also operatively connected to the bottom 432 of the lock lever 43, so that the guide lever 46 can be rotated backward (towards the opening in the rear surface portion 126 of the holder case 12) in the unlocking direction in the normal state, and the lock lever 43 can be urged to rotate in the unlocking direction.

[0049] The trigger 48 is arranged within the connector holding portion 2 so as to be able to move back and forth in the direction of insertion and removal of the power supply fitting 91 of the charging connector 9 relative to the connector holding portion 2, one end protruding outside the connector holding portion 2 and operatively connected to the other end of the guide lever 46, and the other end protruding into the connector holding portion 2 so as to be pressable by the power supply fitting 91 of the charging connector 9, and by pressing the other end, the lock lever 43 is rotated and guided in the locking direction via the guide lever 46.

[0050] In this case, trigger 48 is made of a rectangular rod, with one end being a large rod section 481 with a large cross-sectional area and the other end being a small rod section 482 with a small cross-sectional area. A pair of guide pins 483 protruding toward both the left and right sides are provided on both the left and right sides of large rod section 481, in the middle on the small rod section 482 side.

[0051] The small rod portion 482 on the other end of this trigger 48 is inserted into the connector holding portion 2 through the insertion hole 21 at the bottom of the connector holding portion 2, and the large rod portion 481 on one end is passed through a hole in the lower extension plate portion of the mounting plate mentioned above, so that it can move back and forth in the front-to-rear direction of the holder case 12, and the guide pins 483 on both the left and right sides are passed through and engaged with the guide holes 4620 at the bottom of the left and right plates 461 of the guide lever 46.

[0052] In this way, the trigger 48 is inserted between the lower extension plate portion of the mounting plate attached to the electric lock mounting portion inside the holder case 12 and the bottom of the connector holding portion 2, and one end is operatively connected to the other end of the guide lever 47, so that when the other end of the trigger 48 is pressed, the lock lever 43 is guided to rotate in the locking direction via the guide lever 46.

[0053] An emergency unlocking unit 5 is attached to the unlocking unit attachment portion of this holder case 12. As shown in FIGS. 1 and 3, the unlocking unit 5 has toA general cylinder lock 52 has a keyhole 50, and a key (not shown) is inserted into the keyhole 50 to rotate a rotor 51. The rotor 51 has a rotor 51 with a key 52 facing in the radial direction. - The unlocking unit 5 comprises an unlock lever 53 attached to the rotor 51 so as to be rotatable together with the rotor 51, and which, as the rotor 51 rotates, engages with the lock lever 43 in the locked state and rotates the lock lever 43 in the unlocking direction. The unlocking unit 5 is inserted from the mounting portion 130 on the front portion 121 of the holder case 12 and is attached parallel to the connector holding portion 2 to the unlocking unit mounting portion inside the holder case 12. In this case, the unlocking unit 5 is attached in an operative manner such that the unlocking lever 53 at the rear is normally in a vertical position and does not engage with (contact) the lock lever 43 of the electric lock 4, maintaining the locked state of the hook 93 of the charging connector 9 by the electric lock 4. From this locked state, by operating the key of the cylinder lock 52, the rotor 51 is rotated 90 degrees, whereby the unlocking lever 53 engages with the lower end of the upper portion 431 of the lock lever 43 and rotates the upper portion 431 of the lock lever 43 forward, causing the lock claw 43L of the lower portion 432 to be disengaged from the lock groove 410 of the latch 41.

[0054] In this way, when the key is inserted into the keyhole of cylinder lock 52 and rotated 90 degrees to the right to the unlocked position, the unlock lever 53 engages with the lower end of the upper part 431 of lock lever 43, rotating the upper part 431 of lock lever 43 forward and disengaging the lock claw 43L of the lower part 432 from the lock groove 410 of latch 41. From this state, when the key is rotated 90 degrees to the left to the locked position, the unlock lever 53 rotates in a direction away from the lower end of the upper part 431 of lock lever 43, and the upper part 431 of lock lever 43 rotates rearward following the unlock lever 43 due to the biasing force of coil spring 44 for biasing the lock lever to rotate, and the lock claw 43L of the lower part 432 engages with the lock groove 410 of latch 41. In this case, the key can only be inserted or removed in the locked position.

[0055] This holder H for a charging connector has the above configuration, in which the holder base 11 is installed on the holder installation surface, the mounting screws are passed through each screw insertion portion on the holder base side and fastened to the holder installation surface, and the holder case 12 is attached by engaging the locking portion 14 on the holder case 12 side with the receiving portion 111 on the holder base 1 side, and the mounting screws are passed from the screw insertion portion on the holder case 12 side to the screw insertion portion on the holder base 11 side and fastened to the holder installation surface. In this way, by connecting the power supply fitting portion 91 of the charging connector 9 to the connector holding portion 2, the hook 93 of the charging connector 9, which is engaged with the hook engaging portion 3, is pressed down by the latch 41, and the latch 41 is locked by the engagement between the lock groove 410 of the latch 41 and the lock claw 43L of the lock lever 43, and the latch 41 is unlocked by energizing the solenoid 45.

[0056] 4 to 9 show examples of use of this charge connector holder H. 4 shows the initial state before the charging connector 9 is held in the holder H. In this state, the solenoid 45 (plunger 451) is in the normal position (the fixed position when not energized), and the lock lever 43 is held in the unlocked position (the position immediately before the lock groove 410 after the lock claw 43L has been disengaged from the lock groove 410 of the latch 41) by the rotational guide of the guide lever 46. In this case, the guide lever 46 waits in the normal position (the fixed position when the charging connector 9 is not held in the holder H, in which the upper parts of the left and right plates 461 of the guide lever 46 are rotated rearward with respect to the front surface 121 of the holder H). The guide pins 434 of the lock lever 43 are engaged with the front ends of the guide holes 4610 at the top of the left and right plates 461 of this guide lever 46, and the lock lever 43 is held in the unlocked position, i.e., the standby position just before the lock groove 410 where the lock claw 43L of the lower part 432 is disengaged from the lock groove 410 of the latch 41.

[0057] To hold the charging connector 9 in the holder H, as shown in FIG. 4, the power supply fitting 91 of the charging connector 9 is aligned with the connector holding portion 2, and the hook 93 is aligned with the hook engagement portion 3. Then, as shown in FIG. 5, the charging connector 9 is pushed into the connector holding portion 2 while the other end of the trigger 48 in the connector holding portion 2 is pushed against the biasing force of the coil spring 47 that biases the guide lever to rotate. As the charging connector 9 is pushed in, the hook 93 of the charging connector 9 is inserted into the recess 31 of the hook engagement portion 3 and is guided by the inclined surface at the tip of the guide portion 32 on the outside of the locking hole 30, thereby climbing up and rising toward the locking hole 30. The tip of the hook 93 also comes into contact with the guide surface at the tip of the latch 41, and is guided by this guide surface and moves forward toward the hook engagement portion 3 while pushing up the latch 41. At the same time, the trigger 48 in the connector holding portion 2 is pushed back by the tip of the power supply fitting 91 of the charging connector 9. As the trigger 48 moves backward, the upper portions of the left and right plates 461 of the guide lever 46 are rotated forward, which rotates and guides the lock lever 43 in the locking direction. In this case, when the upper portions of the left and right plates 461 of the guide lever 46 are rotated forward, the guide holes 4610 in the upper portions of the left and right plates 461 are disengaged from the guide pins 434 of the lock lever 43, and the lock lever 43 is rotated in the locking direction by the biasing force of the coil spring 44 that biases the lock lever to rotate, and the lock claw 43L of the lower portion 432 is rotated forward toward the lock groove 410 of the latch 41. Then, as shown in FIG. 6 , when the power supply fitting 91 of the charging connector 9 is connected to the connector holding portion 2, the hook 93 climbs over the guide portion 32, and the hook 93 and the hook engaging portion 3 are engaged, and the lock claw 43L of the lock lever 43 is engaged with the lock groove 410 of the latch 41, thereby being locked. Thus, charging connector 9 is held by holder H, and hook 93, which is engaged with hook engaging portion 3, is pressed and held by locked latch 41. This restricts movement of hook 93 in the removal direction, and even if release button 95 of charging connector 9 is operated, hook 93 cannot be removed from hook engaging portion 3, and charging connector 9 is completely locked.

[0058] To unlock the holder H and charging connector 9, a contact or contactless IC card is read by a card reader on the controller side, or an electrical signal is sent to the solenoid 45 using a function of a mobile device such as a smartphone. As shown in FIGS. 6 and 7 , when the solenoid 45 is energized, the plunger 451 is attracted into the main body 45S, causing the lock lever 43 to rotate in the unlocking direction. In this case, the pulling action of the plunger 451 of the solenoid 45 rotates the upper portion 431 of the lock lever 43 forward and the lower portion 432 rearward, causing the lock claw 43L of the lower portion 432 to disengage from the lock groove 410 of the latch 41. This unlocks the latch 41, and the hook 93 is unlocked. With the hook 93 unlocked, the release button 95 of the charging connector 9 becomes pressable, as shown in FIG. 8 . Pressing the release button 95 disengages the hook 93 from the hook engaging portion 3, allowing the charging connector 9 to be pulled out of the holder H.

[0059] When the charging connector 9 is removed from the holder H, each part of the electric lock 4 is elastically restored to its initial state (see paragraph 0056) as shown in Figure 9. This keeps the lock plate 43 unlocked even when the solenoid 45 is de-energized.

[0060] The emergency unlocking unit 5 is used in an emergency. As shown in FIG. 10(1), the unlocking unit 5 is normally in a vertical position with the unlocking lever 53 at the rear. This lever does not engage (contact) the locking lever 43 of the electric lock 4, maintaining the hook 93 locked by the electric lock 4. When the locking lever 43 is used in an emergency, as shown in FIG. 10(2), a predetermined key is inserted into the keyhole 50 of the cylinder lock 52 and rotated from the locked position to the unlocked position. The rotor 51 rotates the unlocking lever 53 toward the upper portion 431 of the locking lever 43 of the electric lock 4, contacting the lower end of the upper portion 431. This rotates the locking lever 43 in the unlocking direction, i.e., by pressing the upper portion 431 forward. This causes the locking claw 43L of the lower portion 432 to retract and disengage from the locking groove 410 of the latch 41. This releases the locked state of the latch 41, which is caused by the engagement between the locking lever 43 and the latch 41, and unlocks the hook 93. Thus, the release button 95 of the charging connector 9 becomes pressable, and by pressing this release button 95, the hook 93 is released from the hook engaging portion 3, and the charging connector 9 can be pulled out from the holder H.

[0061] As described above, with holder H, the power supply fitting 91 of the charging connector 9 is aligned with the connector holding portion 2, the hook 93 is aligned with the hook engagement portion 3, and the charging connector 9 is inserted into the connector holding portion 2 while the hook 93 presses the latch 41 against the biasing force of the coil spring 42 that biases the latch. This connects the power supply fitting 91 of the charging connector 9 to the connector holding portion 2, engages the hook 93 with the hook engagement portion 3, and the latch 41 presses down and holds the hook 93 from behind (above), and the latch 41 is locked with the lock lever 43 of the electric lock 4. Therefore, by simply inserting and pushing the charging connector 9 into holder H as a normal operation, the charging connector 9 can be held in holder H and automatically locked in this held state. This lock type is ideal for use with charging devices at power supply stations used by an unspecified number of users, or charging devices in apartment building parking lots used by many users, and can reliably and easily lock the charging connector 9 held in holder H.

[0062] In addition, by sending an electrical signal to solenoid 45 using an arbitrary controller, solenoid 45 is activated, rotating lock lever 43 in the unlocking direction away from latch 41 and disengaging latch 41 from lock lever 43. Therefore, for example, by having the controller read a contact or contactless IC card or the like with a card reader, or by using the functions of a mobile terminal such as a smartphone to send an electrical signal to solenoid 45, the locked state between charging connector 9 and holder H can be automatically released with a simple operation using a contact or contactless IC card or smartphone. This lock type is ideal for use in charging devices at power supply stations used by an unspecified number of users or charging devices in apartment parking lots used by many users, and can reliably and easily release the locked state between charging connector 9 and holder H.

[0063] Furthermore, in this holder H, an emergency unlocking unit 5 is installed next to the electric lock 4, and this unlocking unit 5 is composed of a cylinder lock 52 of a type in which a key is inserted into a keyhole 50 at one end to rotate the rotor 51, and an unlocking lever 53 attached to the rotor 51 and capable of engaging and disengaging with the locking lever 43 of the electric lock 4 in conjunction with the rotation of the rotor 51.The locking lever 53 does not engage with the locking lever 43 of the electric lock 4, maintaining the locked state of the latch 41 by the locking lever 43, and an unlocking position in which the locking lever 53 engages with the locking lever 43 and presses and rotates the locking lever 43 in the unlocking direction, releasing the locked state of the latch 41 by the locking lever 43.Therefore, in an emergency in which the lock cannot be released due to a problem with the electrical system such as the controller or solenoid 45, the locked state of the latch 41 by the locking plate 43 can be reliably released with a simple operation of the key. [Explanation of symbols]

[0064] H Charging connector holder 1 Holder body 11 Holder base 111 Receiving part 111a Horizontal part 111b Vertical section 12 Holder Case 121 Front part 122 Top part 1221 Suspension part 123 Side part 124 Side part 125 Bottom part 126 Rear part 130 Unlock unit mounting part 14 Locking part 141 Protrusion 142 Claw 2 Connector holder 21 Insertion hole 22 Groove 3 Hook engagement part 30 Locking hole 31 Recess 32 Guide section 4. Electric lock 41 Latch 410 Lock groove 411 Latch guide 42 Spring member for pressing the latch (coil spring) 43 Lock lever 431 Upper 432 Lower 433 Rotational Axis 434 Guide Pin 43L locking claw 44 Spring member (coil spring) for biasing the lock lever to rotate 45 Solenoid 45S main body 451 Plunger 46 Guide lever 461 Plate 462 Plate 4610 Guide hole 4620 Guide hole 463 Rotational Axis 47 Spring member (coil spring) for biasing guide lever rotation 48 Trigger 481 Large Rod Section 482 Small Rod Section 483 Guide Pin 5 Emergency unlocking unit 50 Keyhole 51 rotor 52 Cylinder lock 53 Lock release lever

Claims

1. a connector holder including: a connector holding portion connectable to a power supply fitting of a charging connector for connection to a charging port of an electric vehicle; and a hook engaging portion disposed adjacent to the periphery of the power supply fitting of the charging connector for engaging with a hook engaging portion of the charging port of the electric vehicle, the hook engaging portion being normally biased by a spring toward the outer circumferential surface of the power supply fitting and engageable with a hook that is movable in a direction away from the outer circumferential surface of the power supply fitting by operating a release button provided on the charging connector; and the charging connector holder is configured to connect the power supply fitting of the charging connector to the connector holding portion by aligning the power supply fitting of the charging connector with the connector holding portion, aligning the hook with the hook engaging portion, and inserting the charging connector into the connector holding portion, thereby connecting the power supply fitting of the charging connector to the connector holding portion and engaging the hook with the hook engaging portion, an electric lock that locks the engagement state between the hook and the hook engagement portion; The electric lock is a latch having a lock groove on its circumferential surface and disposed around the hook engaging portion so as to be able to advance and retreat toward the hook engaging portion and to hold the hook from behind; and a latch pressing and biasing spring member that presses and biases the latch toward the hook engaging portion in a normal state so as to be able to hold and hold the hook; a lock lever having a lock claw at one end engageable with the lock groove of the latch, the lock lever being rotatable in a locking direction in which the lock claw is directed toward the surface of the circumferential surface of the latch having the lock groove or in an unlocking direction in which the lock claw is moved away from the surface having the lock groove, and the lock lever being journaled so as to be engageable with the lock groove of the latch at a position where the latch holds down the hook; and a spring member for biasing the lock lever to rotate in the locking direction in a normal state. a solenoid that is installed on the other end side of the lock lever, has a plunger operatively connected to the other end of the lock lever, and drives the lock lever in the unlocking direction when energized; a guide lever that is pivotally supported on one end side of the lock lever so as to be rotatable in the same direction as the lock lever, and has one end operatively connected to one end of the lock lever, and that rotationally guides the lock lever in the locking direction or the unlocking direction; and a guide lever rotationally biasing spring member that has a spring force greater than that of the lock lever rotationally biasing spring member and that rotationally guides the lock lever in the unlocking direction with the guide lever in a normal state and rotationally biases the lock lever so as to maintain the unlocked state of the lock lever. a trigger that is disposed within the connector holding portion so as to be able to advance and retreat in a direction in which the power supply fitting of the charging connector is inserted into and removed from the connector holding portion, one end of which protrudes outside the connector holding portion and is operatively connected to the other end of the guide lever, and the other end of which protrudes into the connector holding portion so as to be pressable by the power supply fitting of the charging connector, and which rotationally guides the lock lever in the lock direction via the guide lever when the other end is pressed; Equipped with When the power supply fitting portion of the charging connector is connected to the connector holding portion, the hook engaged with the hook engaging portion is pressed down by the latch, and the latch is locked by the engagement between the lock groove of the latch and the lock claw of the lock lever, When the solenoid is energized, the latch is unlocked. A holder for a charging connector.

2. 2. The holder for a charging connector according to claim 1, wherein an emergency unlocking unit is provided adjacent to the electric lock, and the unlocking unit comprises: a cylinder lock that is attached in parallel to the connector holding portion, has a keyhole at one end, and is configured to rotate the rotor by inserting a key into the keyhole; and an unlocking lever that is attached to the rotor in a radial direction of the rotor so as to be rotatable together with the rotor, and that engages with a locking lever and rotates the locking lever in the unlocking direction when the rotor rotates.

Images