JP2012209098A - Power feeding plug locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power feeding plug locking device which can be transited to a locked state even if an operation arm is in a half fitted state.SOLUTION: A locking bar 28 is vertically moved by a worm gear mechanism 32, and a power feeding plug (charging cable) is made possible to be locked to an inlet 14 by pressing a locking arm 17 by this locking bar 28 from above. Due to this, the power feeding plug locking device 23 can be switched into the locked state regardless of the height of the locking bar 28 at a point when the locking arm 17 is pressed from above. Accordingly, even if the locking arm 17 is in the half fitted state, the power feeding plug locking device 23 can be transited to the locked state.

Description

  The present invention relates to a power plug locking device that locks a power plug connected to an article such as a vehicle, for example, to prevent unauthorized removal of the power plug.

  In recent years, with increasing awareness of environmental issues, for example, hybrid vehicles and electric vehicles have been widely used as vehicles with low carbon dioxide emissions. These vehicles are driven by the driving force of the motor by rotating the motor with the electric power of the battery. Therefore, the battery must be charged every time when the battery is running for a long distance and the remaining amount of the battery is reduced (see Patent Document 1, etc.).

  By the way, since battery charging is accompanied by the electrolytic reaction of a compound or ion with the battery cell which is a component of a battery, there exists the present condition that charging time takes comparatively long. Therefore, if the user leaves the vehicle while the battery is being charged, there is a possibility that the power will be stolen by a third party changing the power plug. Therefore, in a vehicle that can be charged by a battery, it is considered to mount a lock device so that the power plug is not pulled out from the vehicle illegally when the power plug is connected to the vehicle.

JP-A-9-161898

  This type of power plug lock device has a type in which the operation of a swing-operated claw-like member (commonly called a lock arm) provided on the power plug is prevented by a lock bar on the inlet side to prevent the power plug from coming off. It has been devised. The lock arm can swing around its own axis, and when the power supply plug is connected to the inlet, it moves to engage with the protrusion of the inlet, and in this state, the power supply plug is locked to the inlet. To do. Further, the lock arm swings to the open side when the operating portion at the base is pushed, and the locking with the protrusion can be released.

  For example, when the lock arm is locked to the protrusion of the inlet, if the lock bar on the inlet side is positioned above the lock arm and the swing on the open side of the lock arm is restricted, the power plug lock device is locked. The power plug is locked to the inlet. On the other hand, when the lock bar is separated from the lock arm and the power supply plug lock device is unlocked, the lock arm can be opened and the power supply plug can be pulled out from the inlet.

  By the way, when this type of power supply plug lock device is used, depending on the situation, a state in which the lock arm is not firmly fixed to the protrusion of the inlet, that is, a so-called half-fitting may occur. If the lock arm is half-fitted to the protrusion, even if the lock bar is moved in the lock direction in an attempt to position the lock bar above the lock arm, the lock arm is positioned above the normal position. Since the movement of the lock bar is stopped halfway, it becomes impossible to shift to the normal lock position. In this case, the power plug locking device cannot be locked.

  For example, when the power plug and inlet are from different manufacturers, or when foreign objects are caught in the lock arm, or when the lock arm is lifted by the weight of the power plug (charging cable) and so on.

  An object of the present invention is to provide a power plug lock device that can shift to a locked state even if an operation arm is half-fitted.

  In order to solve the above problems, in the present invention, when a power supply plug is connected to the inlet, the operation arm provided on the power supply plug takes a locking stop from the protrusion on the inlet side, and this state Under the power supply plug lock device that prevents unauthorized removal of the power supply plug by taking the state where the lock mechanism on the inlet side restricts the operation of the operation arm, the lock mechanism is configured to perform the operation on the protrusion. A lock member capable of reciprocating along the engagement / disengagement direction of the arm and capable of regulating the operation of the operation arm locked to the protrusion, and driving when moving the lock member to the lock position or the unlock position It does not operate with an external force from the driving means as a source and the locking member side, and the locking member is locked or positioned based on the driving force from the driving means. A conversion mechanism that switches to an unlocked position, and when the operation arm is locked to the protrusion, the conversion mechanism that is operated by the drive means moves the lock member along the engagement / disengagement direction. The gist is that the operation arm is pressed against the projection by the lock member, and the locked state is taken.

  According to the configuration of the present invention, since the operation arm that is locked to the protrusion of the inlet is pressed with the lock member from above, for example, and locked to the protrusion, the locked state of the lock mechanism does not depend on the height of the operation arm. For this reason, even if the operating arm is semi-fitted to the protrusion of the inlet and takes a state of floating more than usual, the operating arm can be fixed to the protrusion by the lock member. Therefore, even if the operation arm is half-fitted to the protrusion, the power plug locking device can be shifted to the locked state.

  The gist of the present invention is that the conversion mechanism is a worm gear mechanism. According to this configuration, the structure of the power supply plug lock device can be a simple configuration using the worm gear mechanism.

  The gist of the present invention is provided with a sticking prevention mechanism for preventing sticking that may occur between the operation arm and the lock member due to a strong collision of the lock member with the operation arm during a locking operation. And According to this configuration, a situation in which the lock member that has performed the lock operation sticks to the operation arm at the lock position is avoided, so that the normal operation of the lock member is ensured. Therefore, it is possible to ensure normal locking / unlocking operation of the power supply plug lock device.

  According to the present invention, even if the operating arm is half-fitted, it can shift to the locked state.

The block diagram of the electric power feeding plug lock apparatus of one Embodiment. The perspective view which shows an external appearance when connecting an electric power plug to an inlet. The side view which shows the external appearance when connecting an electric power plug to an inlet. The disassembled perspective view of an electric power plug locking device. Sectional drawing of an electric power plug locking device. Sectional drawing when an electric power supply plug lock device takes a locked state. Sectional drawing of the electric power supply plug lock device which locked the lock arm which semi-fitted. Sectional drawing of the electric power supply plug lock device which locked the lock arm which semi-fitted. The graph explaining current detection control. Explanatory drawing which shows the principle of adhering. The schematic diagram which shows operation | movement of a sticking prevention mechanism. The wave form diagram which shows an example of duty control of another example. The schematic diagram of the locking mechanism of another example.

Hereinafter, an embodiment of a power feeding plug lock device embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, a hybrid vehicle (hereinafter simply referred to as a vehicle 1) is provided with a hybrid system 4 that generates power for turning wheels by an engine 2 and a motor 3. The hybrid system 4 is provided with a battery 5 as a power source for the motor 3. The vehicle 1 travels in various modes such as a mode in which power is generated by the power of the engine 2 and travels by the motor 3, a mode in which both the engine 2 and the motor 3 are traveled as power, and a mode in which the motor 3 travels alone.

  The vehicle 1 is provided with a charging system 6 that charges the battery 5 with an external power source. The charging system 6 uses, for example, a charging stand installed in a corner of a city or a commercial commercial power source as a charging facility 7, and connects a power supply plug 9 provided at the tip of a charging cable 8 of the charging facility 7 to the vehicle 1. The battery 5 is charged.

  As shown in FIGS. 1 and 2, a power receiving connector 11 is provided on the side wall of the vehicle body 10 as a connection location of the power supply plug 9. The power receiving connector 11 is stored in a storage chamber 13 that is opened and closed by a laterally open lid 12. The power receiving connector 11 is provided with an inlet 14 having electrical connection terminals (power terminals, control terminals, etc.). The inlet 14 is provided with a plug connection detection sensor 15 that detects that the power supply plug 9 is completely inserted.

  As shown in FIGS. 2 and 3, the power supply plug 9 is provided on the power source side of the charging system 6 and provided with an electrical connection terminal connected to the inlet 14. A lock arm 17 is swingably attached to the plug main body 16 of the power supply plug 9 as a retaining member at the time of connection. The lock arm 17 swings in a direction intersecting the longitudinal direction with the center in the longitudinal direction as a rotation shaft 18. The lock arm 17 has a claw portion 19 at the tip and an operation portion 20 at the base exposed to the outside of the plug body 16. The lock arm 17 is provided with a biasing member 21 that constantly biases the lock arm 17 toward the closing side at a position near the operation unit 20. The lock arm 17 corresponds to the operation arm.

  When connecting the power supply plug 9 to the power reception connector 11, the power supply plug 9 is inserted straight into the power reception connector 11 in the insertion direction (the −Y axis direction in FIG. 3). At this time, when the claw portion 19 comes into contact with the protrusion 22 of the inlet 14, the lock arm 17 is guided by the inclined surface 22 a and goes up the protrusion 22. When the power supply plug 9 is completely inserted into the inlet 14, the lock arm 17 swings to the closing side by the urging force of the urging member 21. For this reason, the nail | claw part 19 is hooked on the protrusion 22, and the electric power feeding plug 9 is prevented from falling to the inlet 14. FIG.

  The hybrid system 4 outputs a charge start request to the power plug 9 when the plug connection detection sensor 15 detects that the power plug 9 is completely inserted into the inlet 14. When the power supply plug 9 receives a charge start request from the hybrid system 4, a current flows through the power receiving connector 11 to charge the battery 5. When the hybrid system 4 confirms that the battery 5 is fully charged, it outputs a charge termination request to the power supply plug 9. When the power supply plug 9 receives a charge end request from the hybrid system 4, the power supply plug 9 stops the current supply to the power receiving connector 11 and ends the charging.

  When the power supply plug 9 is removed from the inlet 14, the operation unit 20 is pushed to swing the lock arm 17 to the open side and away from the protrusion 22. In this state, the power supply plug 9 is removed from the vehicle 1 by pulling it straight out from the inlet 14.

  As shown in FIGS. 4 to 6, the power receiving connector 11 is provided with a power plug plug device 23 that prevents unauthorized removal of the power plug 9 connected to the inlet 14. As shown in FIGS. 5 and 6, the power supply plug lock device 23 is provided with a case 24 for storing various components. The case 24 is formed of a lock body 25 that forms a main body portion and a lid 26 that closes an opening of the lock body 25. In the case 24, the lock body 25 is firmly fixed to the inlet 14 by a plurality of locking members (not shown).

  As shown in FIGS. 4 to 6, a lock mechanism 27 is mounted on the case 24 as a mechanism portion of the power plug lock device 23. The lock mechanism 27 of this example moves the lock bar 28 from the top to the bottom when locked, and presses the lock arm 17 from the top with the lock bar 28 to bring it into the locked state. For this reason, even if the lock arm 17 is half-fitted to the protrusion 22 (the state shown in FIGS. 7 and 8), the lock does not depend on the height of the lock arm 17, so the power plug lock device 23 is locked. Transition to is ensured. The lock bar 28 corresponds to a lock member.

  In this case, as shown in FIGS. 4 to 6, a power feeding plug lock motor 29 as an operation drive source of the power feeding plug lock device 23 is attached to the inside of the case 24 via a motor bracket 30. For example, a DC motor is used as the power supply plug lock motor 29, and the motor shaft 31 is disposed so as to face the apparatus width direction (X-axis direction in FIG. 4). The power supply plug lock motor 29 corresponds to a driving unit.

  A worm gear mechanism 32 that transmits the rotational force of the power supply plug lock motor 29 to the lock bar 28 side is connected to the motor shaft 31. The worm gear mechanism 32 includes a worm gear 33 attached to the motor shaft 31 and a helical gear 34 that meshes with the worm gear 33. The worm gear mechanism 32 is a type of gear that changes the direction of input rotation by approximately 90 degrees and outputs it. The worm gear mechanism 32 has a function of preventing the worm gear 33 from being intentionally turned from the helical gear 34 side, that is, a so-called self-locking function. The worm gear mechanism 32 corresponds to a conversion mechanism.

  A shaft 35 that rotates integrally with the helical gear 34 is attached and fixed at the same axial center position of the helical gear 34 at the rotational center of the helical gear 34. A screw portion 36 is formed in a substantially entire outer periphery of the shaft 35. Washers 37, 37 are attached to both ends of the shaft 35, respectively. The shaft 35 rotates in the locking direction (arrow K2 direction in FIG. 4) when the power feeding plug lock motor 29 rotates (for example, forward rotation) in one direction (arrow K1 direction in FIG. 4). When it rotates (for example, reverse) in the other direction (arrow S1 direction in FIG. 4), it rotates in the unlocking direction (arrow S2 direction in FIG. 4).

  A lock bar 28 that restricts the position of the lock arm 17 that is locked to the protrusion 22 of the inlet 14 is attached to the screw portion 36 of the shaft 35 so as to be linearly movable along the axis La of the shaft 35. The lock bar 28 is connected to the shaft 35 by screwing a screw hole 39 penetrating the lock bar main body portion 38 with the screw portion 36 of the shaft 35. On the side wall of the lock bar 28, an arm restricting portion 40 that protrudes from the lock arm 17 is provided. The arm restricting portion 40 can be exposed to the outside of the case 24 through a through hole 41 penetrating the bottom wall of the case 24 (lock body 25).

  For example, when the shaft 35 is rotated in the direction K2 in FIG. 5 by the driving force of the power supply plug lock motor 29, the lock bar 28 is linearly moved (lowered) in the locking direction (the direction of the arrow K3 in FIG. 5). When the lock bar 28 is in a state of pressing the lock arm 17 from above, the power plug lock device 23 is locked. On the other hand, when the shaft 35 is rotated in the direction S2 in FIG. 5 by the driving force of the power supply plug lock motor 29, the lock bar 28 is linearly moved (increased) in the unlocking direction (arrow S3 direction in FIG. 5). When the lock bar 28 is separated from the lock arm 17, the power plug lock device 23 is unlocked.

  Inside the case 24, a substrate 42a is housed as a mounting destination for electrical components. The power supply plug lock motor 29 and the plug lock control unit 42 for controlling the lock / unlock operation are mounted on the board 42a. The plug lock control unit 42 is composed of, for example, an IC (Integrated Circuit).

  The plug lock control unit 42 performs energization of the power supply plug lock motor 29 by current detection control. As shown in FIG. 9, in the current detection control, the current flowing through the power supply plug lock motor 29 is measured, the motor rotation speed is estimated from the current measurement value, and the distance of the lock bar 28 is integrated based on the motor rotation speed. If the movement distance of the lock bar has reached the minimum required distance when the current continues to exceed the threshold, it is determined that a stationary current has occurred at the normal position, and the motor energization is stopped. On the other hand, if the movement distance of the lock bar 28 has not reached the minimum required distance when the current continues to exceed the threshold value, it is determined that a stationary current has occurred at the abnormal position, and the motor is energized after energization for a specified time. Exit. If the current detection method is used, for example, sensors are not required, so that the size of the apparatus can be reduced.

  By the way, the dimensional relationship between the lock arm 17 and the lock bar 28 is set such that the operation end position when the lock bar 28 is locked collides with the lock arm 17 and stops so that the lock bar 28 is exactly located at the lock position. May be. As another method, the operation control of the power supply plug lock motor 29 may be performed by using the above-described current detection control or control for setting a longer timer.

  In these situations, the lock bar 28 collides with the lock arm 17, so that the lock arm 17 is loaded with the maximum torque (resting torque) of the power supply plug lock motor 29. In this case, as shown in FIG. 10, it may be assumed that the lock arm 17 side is deformed and the lock bar 28 is stopped in some cases. Also, there is a possibility that the lock arm 17 is deformed even when there is a difference in Young's modulus or hardness between the two.

  If the deformation generated in the lock arm 17 is within the elastic deformation region at this time, the deformation tends to return, but if the deformation direction is not in the direction of moving the lock bar 28 in the reverse direction, or if the worm gear mechanism 32 is self-locking. When the mechanism works, the deformation does not return, and stress (Fa, Fb) remains in the lock arm 17 and the lock bar 28. The stress becomes an operating resistance (friction resistance) during the operation from the lock to the unlock, and unless the motor torque or gear torque that overcomes the operating resistance is generated, the unlocking operation does not start, and the operation is not good (ie, sticking). Become.

  Therefore, as shown in FIG. 11, the lock mechanism 27 of this example is provided with a sticking prevention mechanism 43 that prevents the lock arm 17 and the lock bar 28 from sticking during the unlocking operation. In this case, an engagement groove 44 is formed at a position where the motor shaft 31 is inserted in the worm gear 33 so that the uppercase letter D is reversed and two vertically aligned shapes (double D cut shape) are formed. In addition, a locking piece 45 having a plate shape that is allowed to rotate in the engagement groove 44 is provided at the tip of the motor shaft 31.

  During the locking operation, the locking piece 45 that rotates together with the power supply plug lock motor 29 in the locking direction (the direction of the arrow K1 in FIG. 11) pushes the wall surfaces 44a and 44a of the engaging groove 44, thereby rotating the worm gear 33 in the locking direction. Let Further, during the unlocking operation, the locking piece 45 that rotates in the unlocking direction (the direction of the arrow S1 in FIG. 11) together with the power supply plug lock motor 29 is opposite to the wall surface 44a, 44a in the rotation direction. By pushing the wall surfaces 44b, 44b, the worm gear 33 is rotated in the unlocking direction.

  Further, during the unlocking operation, the locking piece 45 that has been in contact with the wall surfaces 44a and 44a so far rotates in the unlocking direction and then contacts the wall surfaces 44b and 44b, and then the worm gear 33 is unlocked. Direction rotation begins. For this reason, even if the lock arm 17 and the lock bar 28 are temporarily fixed, the fixation is canceled by an impact when the locking piece 45 comes into contact with the wall surfaces 44b and 44b after the idle running rotation. The force for releasing the sticking is determined by, for example, the moment of inertia of rotation due to the mass of the rotor of the power supply plug lock motor 29.

Next, the operation of the power supply plug lock device 23 of this example will be described with reference to FIGS. 6 to 8, 10, and 11.
When the power supply plug lock device 23 is unlocked and a lock trigger is input to the plug lock control unit 42, the plug lock control unit 42 rotates the power supply plug lock motor 29 in one direction (for example, normal rotation) to lock Perform the action. At this time, the rotational force of the power supply plug lock motor 29 is transmitted to the shaft 35 via the worm gear mechanism 32, and the shaft 35 rotates in the locking direction (the direction of the arrow K2 in FIG. 5). As a result, the lock bar 28 starts to move linearly downward, that is, in the lock direction (the direction of the arrow K3 in FIG. 5).

  At this time, as shown in FIG. 6, when the lock arm 17 is fully fitted to the protrusion 22, the lock bar 28 can move to the operation end position (maximum lock position). Therefore, the lock bar 28 presses the claw portion 19 of the lock arm 17 from above, and the swing operation of the lock arm 17 is restricted. That is, the power plug lock device 23 is locked.

  Here, as shown in FIG. 7, when the power supply plug 9 is connected to the inlet 14, for example, it is assumed that the lock arm 17 is slightly lifted and is half-fitted to be engaged with the protrusion 22. At this time, the lock arm 17 takes a position higher than the normal height by Ha and is locked to the protrusion 22.

  Under this condition, when the lock bar 28 is lowered in the locking direction, the lock bar 28 is lowered until it hits the claw portion 19 of the lock bar 28 and stops when it abuts on the claw portion 19. For this reason, since the lock bar 28 presses the lock arm 17 from above and fixes the lock arm 17 to the protrusion 22, the lock arm 17 cannot be manually operated to the open side. Therefore, even if the half-fitting as shown in FIG. 7 occurs, the power feeding plug lock device 23 can be shifted to the locked state. At this time, even if the operation unit 20 of the lock arm 17 is pushed to try to operate the lock arm 17 to the open side, the height position of the lock bar 28 is held by the self-lock function of the worm gear mechanism 32. The bar 28 does not move in the unlocking direction.

  Further, as shown in FIG. 8, when the power supply plug 9 is connected to the inlet 14, for example, it is assumed that the lock arm 17 is largely floated and a half-fitting that engages with the protrusion 22 is taken. At this time, the lock arm 17 takes a position higher by Hb than the normal height and is locked to the protrusion 22.

  Under this condition, when the lock bar 28 is lowered in the locking direction, the lock bar 28 is lowered until it hits the claw portion 19 of the lock bar 28 and stops when it abuts on the claw portion 19. For this reason, since the lock bar 28 presses the lock arm 17 from above and fixes the lock arm 17 to the protrusion 22, the lock arm 17 cannot be manually operated to the open side. Therefore, even if the half-fitting as shown in FIG. 8 occurs, the power feeding plug lock device 23 can be shifted to the locked state. This locked state is also held by the self-locking mechanism of the worm gear mechanism 32.

  Here, it is assumed that during the locking operation, the lock bar 28 collides with the lock arm 17 and the lock arm 17 and the lock bar 28 are fixed (the state shown in FIG. 10). In this situation, when the unlocking operation is started, as shown in FIG. 11, the locking piece 45 is strongly applied to the wall surfaces 44 b and 44 b by the moment of inertia of rotation based on the mass of the rotor of the power supply plug lock motor 29. Abut. For this reason, the sticking is eliminated, and the lock bar 28 is ensured to move upward, that is, in the unlocking direction.

  As described above, in this example, the lock bar 28 is moved up and down by the worm gear mechanism 32, and the lock arm 17 is pressed from above by the lock bar 28, so that the power supply plug 9 can be locked to the inlet 14. For this reason, the power supply plug lock device 23 of this example can be switched to the locked state when the lock arm 17 is pressed from above regardless of the height of the lock bar 28. Therefore, even if the lock arm 17 is half-fitted, the power feeding plug lock device 23 can be shifted to the locked state.

  Further, since the power supply plug lock device 23 is provided with the sticking prevention mechanism 43, for example, even if the lock bar 28 strongly collides with the lock arm 17 during the locking operation and the sticking between them occurs, the sticking prevention is prevented during the unlocking operation. The mechanism 43 is used, so that the fixation between the lock arm 17 and the lock bar 28 is eliminated. Therefore, even if the lock bar 28 is moved to the operation end position aiming at the transition to a reliable locked state, the problem of sticking that may occur in this case is also solved. For this reason, it is possible to ensure a reliable transition to the locked state while dealing with the sticking problem.

According to the configuration of the present embodiment, the following effects can be obtained.
(1) The lock bar 28 is moved up and down in the apparatus height direction, and the power plug 9 is held by pressing the lock arm 17 that is locked to the protrusion 22 of the inlet 14 from above with the lock bar 28. Lock to inlet 14. For this reason, even if the lock arm 17 is half-fitted, the power feeding plug lock device 23 can be shifted to the locked state.

(2) Since the lock bar 28 is moved up and down by the worm gear mechanism 32, the structure of the power supply plug lock device 23 can be a simple structure using the worm gear mechanism 32.
(3) Even if the lock bar 28 is stuck to the lock arm 17 during the locking operation of the lock bar 28, the sticking is prevented by the sticking prevention mechanism 43 during the unlocking operation. Movement in the locking direction can be made possible. Therefore, the unlocking operation of the power plug locking device 23 can be ensured. Note that the sticking prevention mechanism 43 of this example can also be expected to eliminate sticking of the lock bar 28 during the locking operation.

  (4) Although a pair of washers 37, 37 are provided at both ends of the shaft 35, it has been found that these washers 37, 37 are useful for eliminating sticking. Therefore, the lock bar 28 can be further prevented from sticking.

Note that the embodiment is not limited to the configuration described so far, and may be modified as follows.
As a measure for preventing sticking, the duty control of the power plug lock motor 29 may be performed as shown in FIG. In this case, for example, the voltage applied to the power supply plug lock motor 29 is gradually decreased from the time when the lock bar 28 is positioned before the operation end position, so that the lock bar 28 is slowly stopped at the operation end position. In this case, sticking can be prevented in advance, and a normal locking / unlocking operation of the power plug locking device 23 can be ensured.

  As shown in FIG. 13, the lock mechanism 28 may be a mechanism (rotary type) using a cam as the lock bar 28. In this case, the lock bar 28 can be rotated around a shaft 28a extending in the apparatus width direction Z, and the lock arm 17 is locked to the inlet 14 by pressing the lock arm 17 from above at the tip.

  -The charge start conditions of the battery 5 can be changed suitably. For example, the charging start condition may be that the plug connection detection sensor 15 detects the insertion of the power supply plug 9 into the inlet 14 and the ID verification with the electronic key is established.

-You may stop charge of the battery 5 by turning off the switch in a vehicle.
The structure of the power supply plug lock device 23 is not limited to the structure in which the lock bar 28 rides directly on the lock arm 17 and locks the lock arm 17. For example, a rotating member such as a locking lever may be provided in the case 24, and the lock bar 28 may lock the lock arm 17 with the locking lever interposed therebetween.

The power supply plug lock device 23 may be one in which locking or unlocking is performed manually.
The power supply plug lock device 23 may be, for example, a lock type manually operated and an unlock type electrically driven.

The operation arm is not limited to the lock arm 17 that rotates about the center, and the shape and structure are not particularly limited as long as the operation arm can be engaged and disengaged with the protrusion 22 of the inlet 14.
The locking / unlocking operation of the power supply plug locking device 23 may be interlocked with the door lock of the vehicle door. In this case, the power supply plug lock motor may be operated by a current (voltage) flowing through the door lock actuator (motor).

  The engagement / disengagement direction is not limited to the device height direction (Z-axis), and includes a direction that is slightly inclined with respect to the Z-axis. That is, the movement direction of the lock bar 28 may be any direction that can fix the lock arm 17 to the inlet 14.

-A conversion mechanism is not limited to the worm gear mechanism 32, You may employ | adopt another mechanism.
-Vehicle 1 is not limited to a hybrid vehicle, For example, the electric vehicle which drive | works only with a motor may be sufficient.

The power supply plug lock device 23 is not limited to being applied to the vehicle 1 and may be applied to other devices and devices.
Next, technical ideas that can be grasped from the above-described embodiment and other examples will be described below together with their effects.

  (A) In any one of claims 1 to 3, a control means for controlling the driving means by current detection control is provided. According to this configuration, when detecting the position of the lock member, a separate component such as a sensor is not necessary, and the device configuration can be simplified.

  (B) In any one of claims 1 to 3 and the technical idea (A), the lock member is a member that moves linearly. This configuration further contributes to the simplification of the device.

  DESCRIPTION OF SYMBOLS 9 ... Power feed plug, 14 ... Inlet, 17 ... Lock arm as an operation arm, 22 ... Projection, 23 ... Power feed plug lock device, 27 ... Lock mechanism, 28 ... Lock bar as a lock member, 29 ... Drive means Power feeding plug lock motor, 32... Worm gear mechanism as a conversion mechanism, 43.

Claims (3)

When a power supply plug is connected to the inlet, an operation arm provided on the power supply plug locks the protrusion on the inlet side to prevent it from falling out. Under this state, the lock mechanism on the inlet side moves the operation arm. In the power plug locking device that prevents unauthorized removal of the power plug by taking a state that restricts the operation of
The locking mechanism is
A lock member capable of reciprocating along the engagement / disengagement direction of the operation arm with respect to the protrusion, and capable of regulating the operation of the operation arm locked to the protrusion;
A driving means serving as a driving source when the locking member is moved to the lock position or the unlock position;
A conversion mechanism that does not operate with an external force from the side of the lock member, and switches the lock member to a locked position or an unlocked position based on a driving force from the driving means;
When the operation arm is engaged with the protrusion, the lock member is moved to the operation arm side along the engagement / disengagement direction by the conversion mechanism operated by the driving unit, and the operation is performed by the lock member. A power supply plug lock device, wherein a lock state is achieved by pressing an arm against the protrusion. The power supply plug lock device according to claim 1, wherein the conversion mechanism is a worm gear mechanism. The anti-adhesive mechanism for preventing the sticking that may occur between the operation arm and the lock member due to the fact that the lock member strongly collides with the operation arm during the locking operation. The power supply plug lock device according to 1 or 2.

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