KR101672957B1 - Charging plug for electric vehicle - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging plug for an electric vehicle, and more particularly, to a charging plug for an electric vehicle connected to a charging portion of an electric vehicle to charge electricity. In particular, the present invention relates to a vehicle comprising: a body provided to be able to engage with a live part of an electric vehicle; An electrical connector movably mounted on the body so as to be protruded from the body and connected to a charging unit of the electric vehicle; A first safety lock for restricting the return of the electrical connector when the electrical connector is connected to a live part of the electric vehicle and for releasing the restricting restriction of the electrical connector by manual operation; A second safety lock which is installed to be movable inside the body and is operated according to electric charging to restrict manual operation of the first safety lock upon electric charging and to release the restriction on the first safety lock after electric charging, ; And a lock emergency releasing portion coupled to the body and configured to manually move the second safety lock so that manual operation of the first safety lock can be performed during electric charging .

Description

Charging plug for electric vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging plug for an electric vehicle, and more particularly, to a charging plug for an electric vehicle connected to a charging portion of an electric vehicle to charge electricity.

In general, automobiles use fossil fuels such as gasoline and diesel directly to burn. The harmful gases generated at this time cause not only air pollution, but also contribute to global warming. .

In addition, since crude oil for making gasoline and diesel does not remain on the earth, there is an urgent need for alternative energy development in each industry. As part of the solution, efforts are being made to expand the use of electric vehicles.

An electric vehicle refers to an automobile that operates by using electricity as a power source. The automobile itself is loaded with a battery that can be charged as a power source, and travels by using electric power supplied from the mounted battery.

However, since it is necessary to pay special attention to charging the electric battery of the electric vehicle, it is easy and convenient to charge the electric vehicle, along with the development of the electric vehicle technology which is being developed in various forms in order to activate the spread of the electric vehicle, There is an urgent need to develop a technology for charging an electric vehicle that is safe in the event of a safety accident such as an accident.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a charging plug for an electric vehicle in which an electric connector can be protruded and connected to a charging portion of an electric vehicle according to a lever operation.

Still another object of the present invention is to provide a charging plug for an electric automobile which enables emergency forced separation during electric charging.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a charging plug for an electric vehicle including: a body coupled to a charging portion of an electric vehicle; An electrical connector movably mounted on the body so as to be protruded from the body and connected to a charging unit of the electric vehicle; A first safety lock for restricting the return of the electrical connector when the electrical connector is connected to a live part of the electric vehicle and for releasing the restricting restriction of the electrical connector by manual operation; A second safety lock which is installed to be movable inside the body and is operated according to electric charging to restrict manual operation of the first safety lock upon electric charging and to release the restriction on the first safety lock after electric charging, ; And a lock emergency release portion coupled to the body and configured to manually move the second safety lock so that manual operation of the first safety lock can be performed during electric charging.

The first safety lock being configured to be depressed from the outside of the body, the second safety lock being pressed by the second safety lock; A connector lock member interlocked with the button on the inside of the body, the connector lock member interfering with the electrical connector side interfering unit when the button is pressed to prevent the electrical connector from returning and interfering with the electrical connector side interfering unit; . ≪ / RTI >

And a wire cover installed inside the body and enclosing a wire connected to the electric connector and bound to move integrally with the wire in association with the electric connector, wherein the electric connector side interfering portion is provided on the outer side of the wire cover .

The first safety lock may further include a front lock member which is hooked to a charging portion of the electric vehicle when engaged with the charging portion of the electric vehicle and is released from the charging portion of the electric vehicle by the button.

The second safety lock may be electrically operated and may include a solenoid having a rod protruding and retracted by the signal so as to limit and unlock the manual operation of the first safety lock.

The second safety lock includes an intermediate member which is in contact with the button or connector lock member so that one side thereof can be interlocked with the button, and an intermediate member which is engaged with the button or connector lock member, And a solenoid actuated by electricity according to the signal to constrain the intermediate member.

Wherein the body includes a body cover to which the electrical connector is protruded, and a body grip coupled to the body cover to be operatively coupled with the electrical connector; The intermediate member may move along with the body grip to contact the button or connector lock member and be installed on the body grip to be restrained by the solenoid.

The second safety lock may further include an intermediate member elastic body that supports the intermediate member toward the button by an elastic force.

The lock emergency canceling unit may be configured such that the second safety lock is lowered to release the restriction of the first safety lock.

Wherein the intermediate member is formed such that a portion of the intermediate member that interferes with the solenoid is capable of dropping the solenoid; The lock emergency release portion includes a body engagement portion provided at an emergency exit formed in the body so as to be positioned below the solenoid and having a through hole, and a lock engagement portion interposed between the body engagement portion and the solenoid to support the solenoid, And a receiving portion separated from the body coupling portion through the hole.

The receiving portion may be detachably coupled to the body coupling portion by rotating.

And a protrusion protruding from a side surface of the main body portion so as to be engaged with the upper surface of the body coupling portion inside the body; The through hole of the body coupling portion may be formed to correspond to the main body portion and the protruding portion of the receiving portion so that the receiving portion may be separated when the receiving portion is rotated with respect to the body coupling portion to be in contact with the receiving portion.

The upper surface of the body coupling portion may be provided with a stopper protrusion interfering with the protrusion of the receiving portion to limit a rotation range of the receiving portion.

The body coupling portion may be provided with a stopper hook capable of restricting rotation of the receiving portion so as to restrict separation of the receiving portion.

The stopper hook may include a hook elastically deformable portion provided on the body coupling portion so as to be elastically bent in a vertical direction and a hook projection protruding from the upper surface of the hook elastic portion so as to be structurally interfered with the receiving portion. have.

A solenoid leg provided on the solenoid may be provided at the center of the receiving portion so that the solenoid leg can be detached in a vertical direction.

According to the present invention, it is possible to maintain the locked state of the electric vehicle unlocked structurally by the solenoid when the electric charge is being performed, thereby preventing a safety accident due to the arbitrary separation from the charging part of the electric vehicle .

Further, according to the present invention, since the lock state applied to the charging plug by the lock emergency release unit can be released when the emergency state occurs during the electric charge, there is an effect that the emergency emergency can be dealt with safely.

In addition, since the lock emergency release unit does not forcibly control the solenoid, the solenoid can be positively moved to unlock the lock state, so that it is possible to prevent damage or the like of the charging plug including the solenoid.

Further, since the lock emergency release portion is constructed to be structurally separable from the body, the present invention has an effect that the rechargeable plug can be reused including the lock emergency release portion after the emergency braking.

1 is a view of a charging plug for an electric vehicle according to an embodiment of the present invention,
1 is a perspective view showing a state where the charging plug and the electric vehicle are not connected to each other.
FIG. 2 is a perspective view of the charging plug and the electric vehicle in a state of engaging the charging part. FIG.
3 is a perspective view of the body incision in the state of advancing the electrical connector;
4 is a backward one-way side view of the electrical connector.
Fig. 5 is a view corresponding to the enlarged portion " El " of Fig. 4, showing the state after the electrical connector is advanced.
Fig. 6 is a view corresponding to enlarged portion 'E2' of Fig. 4, showing the state after the electrical connector is advanced. Fig.
Fig. 7 is a side view opposite to Fig. 4 of Fig. 3; Fig.
Fig. 8 is a view corresponding to Fig. 7, showing the state after the electric connector is advanced. Fig.
9A and 9B illustrate an operation state of the second safety lock. FIG. 9A is a state before locking by the second safety lock, and FIG. 9B is a state of locking by the second safety lock.
10A and 10B show the relationship between the second safety lock and the lock emergency canceling portion. FIG. 10A shows a locked state by the second safety lock when the state is not the emergency state, FIG. Fig. 10 (c) is a state in which the second safety lock is unlocked due to the drop of the solenoid after Fig. 10 (b).
11 is a perspective view showing a state in which the body engaging part and the receiving part of the lock emergency release part are fully engaged with each other.
12 is a plan view of Fig.
13 is a sectional view taken along the line CC in Fig.
14 is a perspective view of the disengaged state for separating the body engaging portion and the receiving portion of the lock emergency release portion;
Fig. 15 is a plan view of Fig. 14; Fig.
16 is a perspective view of the state where the body coupling portion and the receiving portion of the lock emergency release portion are separated.

In the following description, specific details of the charging plug for an electric vehicle of the present invention are set forth in order to provide a more thorough understanding of the present invention, and it is to be understood that the present invention may be readily practiced without these specific details, And will be apparent to those skilled in the art.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings, with reference to the parts necessary for understanding the operation and operation according to the present invention.

1 to 16 are views of a charging plug for an electric vehicle according to an embodiment of the present invention.

1 to 16, a charging plug 10 for an electric vehicle according to the present invention includes an electrical connector 100, a body 200, a lever 300, a first safety lock, A second safety lock, a lock emergency canceling unit 600, and the like. The direction in which the electrical connector 100 protrudes from the body 200 toward the charging part 20 of the electric vehicle is referred to as a forward direction (arrow A), and the opposite direction is referred to as a backward direction (arrow B) Quot; In addition, the description will be limited to the case where the lever grip portion 320 of the lever 300 is positioned on the lower side of the body 200.

1 to 3, the electrical connector 100 is connected to the wire 110 for electric charging and is connected to a connector provided in the charging unit 20 of the electric vehicle. The electric connector 100 is connected to the connector of the charging part 20 of the electric vehicle so that the charging plug 10 of the present invention is protruded from the body 200 after being coupled with the charging part 20 of the electric vehicle, 200 and the lever 300 so that the lever 300 can be moved forward or backward by the operation of the lever 300.

1 to 5, the wire 110 is composed of a plurality of strands for supplying electricity, signal transmission, etc., and may be protected by a wire cover 120 installed inside the body 200. The wire cover 120 may be bound to the wire 110 so that the wire cover 120 can be moved integrally with the wire 110 in conjunction with the forward and backward movement of the electrical connector 100. The wire cover 120 may be integrally joined to the electrical connector 100 by bolting or the like.

On the other hand, on the outer side of the wire cover 120, there is provided an electrical connector side interfering structure structurally interfering with the first safety lock such that the return of the electrical connector 100 can be restricted by the first safety lock when the electrical connector 100 is advanced. (130) may be integrally formed. The electrical connector side interfering part 130 may be integrally formed with the wire cover 120 or may be separately manufactured from the wire cover 120 and integrally joined to the wire cover 120 by bolting or the like. The electrical connector side interfering part 130 can be variously implemented according to the interference structure with the first safety lock and includes a fixing bracket 132 fixed to the upper surface of the wire cover 120, And an interference protrusion 134 protruding upward from the upper surface.

1 to 5, the body 200 has an electric connector 100, a wire 110, and the like installed therein. The body 200 has an outer appearance of the charging plug 10 and may have a substantially pipe structure.

The body 200 may be divided into a body cover 210 structurally positioned along the forward / backward direction and a body grip 220 coupled to the rear of the body cover 210, And the body grip 220 can be coupled to each other so as to be movable relative to each other corresponding to the forward and backward movement of the electrical connector 100.

The body cover 210 may be formed such that a part of the body 20 of the electric vehicle 20 is inserted into the charging part 20 of the electric vehicle for electric charging. The body cover 210 includes a first cover part 212 formed to have a size such that the end of the charging part 20 side of the electric vehicle can be hooked outside the charging part 20 of the electric vehicle along the forward and backward directions, The second cover 212 is formed to be inserted into the charging part 20 of the electric vehicle by being connected to the end of the first cover part 212 at the side of the charging part 20 of the electric vehicle, Section 214, as shown in FIG. The second cover portion 214 may be formed corresponding to the insertion space 22 of the charging portion 20 of the electric vehicle.

The body grip 220 can be moved relative to the body cover 210 integrally with the wire 110 and the wire cover 120 according to the forward and backward movement of the electrical connector 100, They can be joined together by press fitting, bolting, or the like.

1 to 3, the lever 300 can be configured in a manual operation mode.

That is, the lever 300 is inserted into the body 200, particularly the body cover 210, and is connected to the electric connector 100 or the electric connector 100, (Not shown). The lever 300 may include a lever handle 320 integrally formed with the lever coupling portion 310 and protruding to the outside of the body 200 so as to form a handle for manual operation of the lever 300 . The lever handle 320 can protrude downward with respect to the body 200. The boundary between the lever engaging portion 310 and the lever grip portion 320 is connected to the body 200 and particularly to the body cover 210 by the hinge shaft 310. [ (Not shown). The hinge shaft 330 of the lever 300 is configured such that the lever handle 320 protrudes downward from the body 200 so that the lever engaging portion 310 can be rotated along the forward and backward directions of the electrical connector 100 The left and right direction may be set in the axial direction. The electric connector 100 is advanced and protruded from the body 200 by the rotation of the lever coupling portion 310 of the lever 300 in the forward direction and the rotation of the lever coupling portion 310 of the lever 300 in the backward direction rotation The electrical connector 100 can be retracted.

The lever 300 may be supported by a lever elastic member that applies an elastic force in a direction in which the lever 300 is returned after the operation of the lever 300 for advancing the electrical connector 100 is released. That is, the lever elastic member is compressed in association with the operation of the lever 300 for advancing the electrical connector 100, and when the operation of the lever 300 is released, the elastic connector 100 is retracted by the elastic restoring force, The lever 300 can be returned and returned and maintained. The lever elastic member may be made of any material that can be elastically deformed, such as a coil spring.

3 to 5, 7, and 8, the first safety lock may include a button 410, a connector lock member 420, and the like.

The button 410 is for releasing the restricting restriction of the electrical connector 100 by the manual operation of the connector lock member 420 mechanically by manual operation so that the operator can manually press the outside of the body 200 But can be constrained by structural interference with the second safety lock. The button 410 may be installed in the button hole 202 formed in the upper portion of the body 200 so that the operator can easily operate the button 410 from the outside of the body 200.

The connector lock member 420 is installed inside the body 200 so as to be interlocked with the button 410 and structurally interferes with the electrical connector side interference part 130 when the electrical connector 100 is advanced, 100, that is, backward, and can be released from interference with the electrical connector side interference part 130 by pressing the button 410. [ More specifically, the connector lock member 420 includes a connector lock rotation lever 422 provided on the inner upper side of the body 200 so as to be rotatable in the left and right direction about the rotation axis, and the connector lock rotation lever 422, The front portion 422b of the connector lock rotation lever 422 is structurally interfered with the electrical connector side interference portion 130 and the rear portion 422a of the connector lock rotation lever 422 is connected to be interlocked with the button 410. [ The front portion 422b of the connector lock rotation lever 422 contacts the interference projection 134 of the electrical connector side interference portion 130 on the lower side and when the electrical connector 100 is advanced, The interference protrusions 134 of the light guide plate 130 can be caught. On the other hand, the connector lock rotation lever 422 includes a front branch portion 422c (hereinafter referred to as a " front lock portion ") configured in parallel with the front portion 422b of the connector lock rotation lever 422 so that a front lock 440 ).

The first safety lock is provided with button elasticity for supporting the button 410 or the connector lock member 420 by the elastic force in the return direction of the button 410 so that the button 410 after the depression of the button 410 can be returned to itself. Member 430 as shown in FIG. The button elastic member 430 is a spring provided between the upper surface of the front portion 422b of the connector lock rotation lever 422 and the body 200 so as to be elastically deformed in the vertical direction corresponding to the pressing operation direction of the button 410 Lt; / RTI >

Referring to FIGS. 1 and 3, 4 and 6, the first safety lock may further include a front lock 440. FIG.

The front lock 440 is engaged with the charging part 20 of the electric car so as not to be separated from the charging part 20 of the electric car when the charging part 20 of the electric car is combined with the front lock 440, The engaging portion 20 is disengaged. The front lock 440 may include a front lock rotation lever 442, a front lock elastic member, and the like. The front lock rotation lever 442 is positioned forward of the connector lock rotation lever 422 and is installed on the inner upper side of the body cover 210 so as to be rotatable in the left and right direction about the rotation axis. The front lock rotation lever 442 is configured such that the front portion of the front lock portion 440 rotation center 442s protrudes outward from the front of the body cover 210 and is inserted into the charging portion 20 of the electric vehicle An interference chin 442a is protruded. The rear portion of the front lock rotation lever 442 extends over the front branch portion 422c of the connector lock rotation lever 422. The front lock elastic member is provided on the rotation shaft of the front lock rotation lever 442 and is made of a spring elastically supported in the direction in which the rear portion of the front lock elastic member is in tight contact with the front branch portion 422c of the connector lock rotation lever 422 have.

7 to 10, the second safety lock includes a solenoid 510 which is electrically operated so that the charging plug 10 of the present invention can not be separated from the charging section 20 of the electric vehicle by manual operation during electric charging, And a control unit. The solenoid 510 includes a rod 512 which is protruded and returned by an electrical signal depending on whether or not an electric charge is applied so that the manual operation of the first safety lock can be limited and released. This solenoid 510 may directly interfere constructively with the first safety lock and limit and unlock the first safety lock through the intermediate member 520. [ In the latter case, the solenoid 510 may be located below the button 410 of the first safety lock or the connector lock rotating lever 422. The rod 512 of the solenoid 510 can be projected and returned in the left and right direction.

The intermediate member 520 is structurally intermediate medium between the solenoid 510 and the button 410 of the first safety lock or the connector lock member 420 so that one side of the button 410 or the connector lock member 420, And an intermediate member lever 522 having an interference part 522a which is in contact with the lower side of the first safety lock and interferes with the second safety lock on the other side. The intermediate member lever 522 has a first intermediate lever portion 522b which is vertically installed and has an upper end which is in contact with the lower surface of the button 410 or the connector lock member 420 and a second intermediate lever portion 522b which extends from the first intermediate lever portion 522b And a second intermediate lever portion 522c bent toward the advancing direction and having an interference portion 522a formed at the front end thereof. The interfering portion 522a of the intermediate member lever 522 penetrates in the left and right direction so that the rod 512 of the solenoid 510 can be inserted and removed in the left and right direction and the rod 512 of the solenoid 510 is moved downward And the lower side of the groove may be opened.

In particular, the intermediate member 520 may be installed in the body grip 220 such that when the electrical connector 100 is advanced, it moves with the body grip 220 and is positioned between the solenoid 510 and the first safety lock . That is, the intermediate member 520 contacts the button 410 or the connector lock member 420 only when the electrical connector 100 is advanced, and may interfere structurally with the rod 512 of the solenoid 510.

The intermediate member 520 can be moved by pressing the intermediate member lever 522 to the button 410 or the connector lock member 420 so that the intermediate member lever 522 can be held in close contact with the lower surface of the button 410 or the connector lock member 420 And an intermediate member elastic body 524 that supports the connector lock member 420 by an elastic force toward the connector lock member 420. [ For example, the intermediate member elastic body 524 may be formed of a spring provided on the body grip 220 so as to be vertically deformable under the connecting portion between the first intermediate lever portion 522b and the second intermediate lever portion 522c.

10 to 16, the lock emergency canceling unit 600 structurally solenoid 510 and intermediate member 520 are structured by manual operation without emergency control of the solenoid 510 during electric charging, The solenoid 510 itself is moved to release the restriction on the first safety lock.

The solenoid 510 is installed inside the body 200 in a detachable manner and the lock emergency release part 600 is disposed below the solenoid 510 so that the emergency exit 204 A body coupling portion 610 provided at the body coupling portion 610 and having a through hole 612 formed therein and a solenoid 510 interposed between the body coupling portion 610 and the solenoid 510 to support the solenoid 510, And a receiving portion 620 that is separated from the body coupling portion 610 through the coupling portion 612.

Particularly, the body coupling portion 610 and the receiving portion 620 can be detachably coupled to the body coupling portion 610 by rotating the receiving portion 620. That is, the receiving portion 620 includes a main body portion 622 having a circular structure for supporting the solenoid 510, and a main body portion 622 for holding the main body portion 622 so as to be hooked on the upper surface of the body- And may include projecting protrusions 624 on the side surfaces thereof. The through hole 612 of the body coupling part 610 is formed so that the receiving part 620 can be detached when the receiving part 620 is rotated with respect to the body coupling part 610 to be fitted with the receiving part 620, And may be formed corresponding to the body portion 622 and the protrusion portion 624 of the receiving portion 620. That is, the through hole 612 of the body coupling portion 610 corresponds to the circular central portion 612a corresponding to the main body portion 622 of the receiving portion 620 and the protruding portion 624 of the receiving portion 620 And an extended portion 612b extending from a portion of the central portion 612a to the outside of the central portion 612a along the circumferential direction of the central portion 612a.

The upper surface of the body coupling portion 610 may be provided with a stopper protrusion 614 interfering with the protrusion 624 of the receiving portion 620 to limit the rotation range of the receiving portion 620. The stopper protrusion 614 may be formed between the extended portion 612b and the extended portion 612b of the through hole 612 along the circumferential direction of the body coupling portion 610. [

In addition, the body coupling portion 610 may be provided with a stopper hook 616 for restricting arbitrary separation of the receiving portion 620. That is, the stopper hook 616 is engaged with the stopper protrusion 614 in a state where the retainer 620 is coupled to the body coupling portion 610 and the protrusion 624 of the retainer 620 is engaged with the stopper protrusion 614, It is structurally interfered with the projecting portion 624 to prevent the support portion 620 from being arbitrarily rotated due to an external impact or the like and in order to release the restriction of the first safety lock due to the second safety lock in an emergency, Rotation allows the abutment portion 620 to overcome the structural interference with the stopper hook 616 and to be rotated.

The stopper hook 616 can be formed to be elastically deformable such that the projecting portion 624 of the receiving portion 620 can easily overcome the structural interference with the stopper hook 616. [ That is, the stopper hook 616 is connected to the body coupling portion 610 at one end of both ends along the circumferential direction of the body coupling portion 610 so that the stopper hook 616 can be elastically bent in the vertical direction, An unconstrained hook resilient deformable portion 616a and a hook protrusion 616b protruding from the upper surface of the hook resilient deformable portion 616a so as to be structurally interfered with the receiving portion 620. [ The through hole 612 of the body coupling portion 610 is formed to extend outwardly of the circular central portion 612a corresponding to the shape of the stopper hook 616 so that the stopper hook 616 can be provided, And a stopper hook extension part 612c. The projecting portion 624 of the receiving portion 620 is structurally interfered with the stopper hook 616 and hooked on the hook projection 616 of the stopper hook 616 on the lower surface thereof so as not to be lifted from the body coupling portion 610 by the stopper hook 616 A hook groove 624a into which the hooks 616a and 616b are inserted can be formed.

A center fitting portion 622a is formed in the main body portion 622 of the receiving portion 620 so that the solenoid 510 can be stably mounted on the receiving portion 620. The solenoid 510 is provided with a receiving portion 622a, And a solenoid leg 515 of a rod structure which is detachably fitted to the fitting portion 622a of the base member 620 can be integrally provided. Therefore, the solenoid leg 515 is fitted to the fitting portion 622a of the receiving portion 620, so that the solenoid 510 can be supported by the receiving portion 620 so as not to move. The fitting portion 622a of the receiving portion 620 may be formed of a groove or a hole. The solenoid leg 515 may be formed to correspond to the size of the fitting portion 622a of the receiving portion 620 to prevent the solenoid 510 from flowing.

The operation of the charging plug 10 according to the present invention will now be described.

1, 2, 4, and 7 show a state in which the electrical connector 100 of the present invention is in a backward state, and is not electrically connected to the charging unit 20 of the electric vehicle. At this time, there is no limitation on the electrical connector 100 side due to the first safety lock, and no limitation on the first safety lock due to the second safety lock.

That is, since the interference protrusion 134 of the electrical connector side interfering part 130 is in contact with the lower surface of the front portion 422b of the connector lock rotation lever 422 of the first safety lock, The connector 100 can be freely swung back and forth without being interfered by the first safety lock. In addition, since the intermediate member 520 of the second safety lock is retracted away from the button 410 of the first safety lock together with the body grip 220, the button 410 of the first safety lock is disengaged from the button 410 of the second safety lock, And can be pressed freely without being caught by the intermediate member 520. [ At this time, the solenoid 510 of the second safety lock is in a state in which the rod 512 is not protruded, that is, in a restored state.

3 and 5, 6, 8 and 9 show a state in which the charging plug 10 of the present invention is engaged with the charging part 20 of the electric vehicle and the electric connector 100 is operated by the operation of the lever 300, And is advanced from the cover 210 to charge the charging section 20 of the electric vehicle.

At this time, since the wire 110 and the wire cover 120 are advanced together with the electrical connector 100, the interference protrusion 134 of the electrical connector side interfering part 130 contacts the connector lock rotation lever 422 of the first safety lock, In front of the front portion 422b. Therefore, the backward return of the electrical connector 100 is restricted by the first safety lock.

In addition, since the body grip 220 is advanced with the electrical connector 100, the intermediate member 520 of the second safety lock is positioned below the button 410 of the first safety lock. The load 512 of the solenoid 510 of the second safety lock protrudes and is inserted into the interference portion 522a of the intermediate member 520 of the second safety lock so that the solenoid 510 Since the downward movement of the intermediate member 520 is limited so that the intermediate member 520 does not move below the button 410 of the first safety lock and the pressing of the button 410 of the first safety lock is restricted do. Therefore, the operation of the first safety lock is limited by the second safety lock.

9A, the rod 512 of the solenoid 510 is released from the interfering portion 522a of the intermediate member 520 and is restored, thereby restricting the first safety lock caused by the second safety lock The downward movement of the intermediate member 520 is enabled by the depression of the button 410, so that the pushing operation of the button 410 becomes possible. 5 and 6, when the button 410 is pressed, the connector lock rotation lever 422 of the first safety lock is rotated so that the front portion 422b of the connector lock rotation lever 422 contacts the electrical connector- The interference between the connector lock rotating lever 422 and the electrical connector side interfering portion 130 is released and the lever 300 is returned by the elastic restoring force of the lever elastic member or the like, The wire 110, the wire cover 120 and the body grip 220 together with the body cover 210 move backward with respect to the body cover 210 and are returned.

When the button 410 is pushed, the front branching portion 422c of the connector lock rotation lever 422 lifts the rear portion 422a of the front lock rotation lever 442 as the connector lock rotation lever 422 is rotated The front lock lever 442 is rotated so that the front portion 422b of the front lock rotation lever 442 is rotated downward to release the engagement of the electric vehicle with the charging portion 20, 10 can be separated from the live part of the electrical connector 100.

9 to 16, when an emergency situation (for example, a natural disaster such as a fire accident or an earthquake) occurs in the state of being electrically charged and the electrical charging must be stopped, the lock emergency release unit The charging plug 10 of the present invention can be safely and easily separated from the charging portion 20 of the electric vehicle.

The rocker emergency release portion 600 may be configured to move the solenoid 510 from the lower side of the body cover 210 at a predetermined height h to the lower side of the body cover 210 as shown in FIGS. 9, 10A, And is coupled to the lower portion of the body cover 210. That is, the body coupling portion 610 is coupled to the exit hole 204 of the body cover 210, and the receiving portion 620 is coupled to the body coupling portion 610, Respectively. At this time, the receiving portion 620 is in a state in which the protruding portion 624 of the receiving portion 620 is in close contact with the stopper projection 614 of the body coupling portion 610, and the protruding portion 624 of the receiving portion 620 is in contact with the stopper projection 614 of the body coupling portion 610, So that relative rotation of the receiving portion 620 with respect to the body coupling portion 610 is limited. Therefore, the receiving portion 620 is not separated from the body coupling portion 610 at will. The solenoid 510 is mounted on the support portion 620 and the solenoid leg 515 is fitted to the fitting portion 622a of the support portion 620. [

When the solenoid 510 is held at the normal position by the lock emergency release unit 600 as shown in FIGS. 14 and 15, when the solenoid 510 is intentionally removed from the outside of the body 200 to separate the support unit 620, The hook elastic deforming portion 616a of the stopper hook 616 is moved downward as the projecting portion 624 of the receiving portion 620 tries to ride over the hook projection 616b of the stopper hook 616 The hook protrusion 616b of the stopper hook 616 is moved downward from the protruding portion 624 of the receiving portion 620 so that the hook protrusion 616b of the stopper hook 616 is moved downward by the protruding portion 624 of the receiving portion 620, (620) can be rotated without interference by the stopper hook (616).

When the receiving portion 620 is rotated so that the protruding portion 624 of the receiving portion 620 is positioned in the extending portion 612b of the through hole 612 of the body coupling portion 610, And the receiving portion 620 can be pulled downward from the joining portion 610 and separated.

When the support portion 620 is separated from the body coupling portion 610, the support portion 620 supporting the solenoid 510 is removed. As a result, as shown in FIG. 10C, The rod 512 of the solenoid 510 is released from the interference portion 522a of the intermediate member 520 by lowering the rod 610 of the solenoid 510. [

Accordingly, as the interference between the intermediate member 520 and the solenoid 510 is released, the first safety lock button 410 is depressed to retract the electrical connector 100 from the charging section 20 of the electric vehicle, The charging plug 10 can be separated from the charging portion 20 of the electric vehicle.

Meanwhile, the receiving portion 620 separated from the body coupling portion 610 may be re-coupled to the body coupling portion 610 in a reverse order to the above-described separation process to support the solenoid 510.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

10; A charging plug 20; The charging section of the electric vehicle
100; Electrical connector 110; wire
120; Wire cover 130; The electrical connector side interference portion
200; Body 210; Body Cover
220; Body grip 300; lever
410; Button 420; Connector lock member
422; Connector lock rotation lever 430; Button elastic member
440; Front lock 510; Solenoid
520; Intermediate member 600; Lock emergency release unit
610; Body coupling portion 620; [0030]

Claims (16)

A body adapted to be coupled to a live part of the electric vehicle;
An electrical connector movably mounted on the body so as to be protruded from the body and connected to a charging unit of the electric vehicle;
A first safety lock for restricting the return of the electrical connector when the electrical connector is connected to a live part of the electric vehicle and for releasing the restricting restriction of the electrical connector by manual operation;
A second safety lock which is installed to be movable inside the body and is operated according to electric charging to restrict manual operation of the first safety lock upon electric charging and to release the restriction on the first safety lock after electric charging, ; And
A lock emergency release portion coupled to the body and configured to manually move the second safety lock so that manual operation of the first safety lock can be performed during electric charging;
And a charging plug for charging the electric automobile. The method according to claim 1,
The first safety lock
A button installed to be pressed from the outside of the body and pressed by the second safety lock;
A connector lock member interlocked with the button on the inside of the body, the connector lock member interfering with the electrical connector side interfering unit when the button is pressed to prevent the electrical connector from returning and interfering with the electrical connector side interfering unit;
And a charging plug for charging the electric automobile. The method of claim 2,
And a wire cover installed inside the body and enclosing a wire connected to the electrical connector and being bound to move integrally with the wire interlocked with the electrical connector,
And the electrical connector side interfering portion is provided on the outer side of the wire cover. The method according to claim 2 or 3,
Wherein the first safety lock further comprises a front lock member which is hooked to a charging portion of the electric vehicle when engaged with the charging portion of the electric vehicle and is released from engagement with the charging portion of the electric vehicle by the button. Charging plug for. The method according to any one of claims 1 to 3,
The second safety lock includes a solenoid which is electrically operated and has a rod which is protruded and returned by an electrical signal depending on whether the electric charge is made so as to limit or limit the manual operation of the first safety lock Wherein the charging plug is formed of a metal. The method according to claim 2 or 3,
The second safety lock includes an intermediate member which is in contact with the button or connector lock member so that one side thereof can be interlocked with the button, and an intermediate member which is engaged with the button or connector lock member, And a solenoid which is actuated by electricity according to an electrical signal according to the electric charge to restrain the intermediate member. The method of claim 6,
Wherein the body includes a body cover to which the electrical connector is protruded, and a body grip coupled to the body cover to be operatively coupled with the electrical connector;
Wherein the intermediate member is mounted on the body grip such that the intermediate member moves with the body grip and contacts the button or connector lock member and can be restrained by the solenoid. The method of claim 6,
And the second safety lock further comprises an intermediate member elastic body for supporting the intermediate member by elastic force toward the button. The method according to any one of claims 1 to 3,
Wherein the lock emergency canceling portion is configured such that the restriction of the first safety lock can be released due to the drop of the second safety lock. The method of claim 6,
Wherein the intermediate member is formed such that a portion of the intermediate member that interferes with the solenoid is capable of dropping the solenoid;
The lock emergency release portion includes a body engagement portion provided at an emergency exit formed in the body so as to be positioned below the solenoid and having a through hole, and a lock engagement portion interposed between the body engagement portion and the solenoid to support the solenoid, And a receiving portion separated from the body coupling portion through the hole. The method of claim 10,
Wherein the receiving portion is rotatably coupled to the body connecting portion so as to be detachable. The method of claim 11,
And a protrusion protruding from a side surface of the main body portion so as to be engaged with the upper surface of the body coupling portion inside the body;
Wherein the through hole of the body coupling portion is formed to correspond to the main body portion and the protruding portion of the receiving portion so that the receiving portion can be separated when the receiving portion rotates with respect to the body connecting portion and is fitted with the receiving portion. Charging plug for. The method of claim 12,
And a stopper protrusion that interferes with the projection of the receiving portion and restricts the rotation range of the receiving portion is provided on the upper surface of the body coupling portion. The method of claim 12,
Wherein the body coupling portion is provided with a stopper hook capable of restricting rotation of the receiving portion so as to restrict separation of the receiving portion. 15. The method of claim 14,
Wherein the stopper hook includes a hook elastic deforming portion provided on the body connecting portion so as to be capable of flexing in a vertical direction and a hook projection protruding from the upper surface of the hook elastic deformation portion so as to be structurally interfered with the receiving portion, Wherein the charging plug is formed of a metal. The method of claim 10,
Wherein a solenoid leg provided on a solenoid is provided at the center of the receiving part, and a fitting part is fitted to the solenoid so that the solenoid leg can be separated in a vertical direction.

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