KR20220055672A - Swing motion open and closed type charging door device for electric vehicle with rotating handle structure - Google Patents

Abstract

Disclosed is an opening and closing type charging door device using a swing motion of an electric vehicle, which changes an opening and closing method of a charging door from an electric opening structure into an opening and closing structure using a swing motion by manual control to reduce the number of components, reduce weight of the components, and reduce cost. According to an embodiment of the present invention, the opening and closing type charging door using a swing motion of an electric vehicle is configured to open and close the charging door by rotation control of a handle, and the handle is provided to be rotatable along a surface of the charging door to prevent pressure from applied in an opening direction of the charging door to improve operating performance of the charging door.

Description

Swing motion open and closed type charging door device for electric vehicle with rotating handle structure

The present invention relates to a charging door device provided in a rechargeable electric vehicle, and more particularly, by changing the opening/closing method of the charging door from an electric open structure to a swing behavior opening/closing structure by manual operation to reduce the number of components and reduce the number of parts. It relates to a swing-action opening and closing charging door device for an electric vehicle that reduces weight and cost, but adopts a rotating handle structure so that pressure is not applied in the opening direction of the charging door during manual operation.

In recent years, as interest in environmental pollution begins to rise, many efforts are being made to develop eco-friendly vehicles such as electric vehicles. Such an electric vehicle is equipped with a battery and a motor to realize driving of the vehicle using power generated according to the driving of the motor, and a charging port for charging the battery must be provided.

Such a charging port is provided so as not to be directly exposed from the outside through a charging door that is installed to be open and closed with respect to the vehicle body. Accordingly, most electric vehicles are equipped with various types of opening and closing devices to implement the opening and closing structure of the charging door. The charging door is opened by operating the opening button located inside the vehicle.

However, the conventional electric-driven charging door opening/closing device as described above has a complicated structure, and the number of parts increases for the electric configuration, thereby increasing the weight of all parts and increasing the manufacturing cost. As a result, it causes disadvantageous problems in terms of economic feasibility.

Registered Patent No. 10-1630589

The technical problem to be solved by the present invention is to change the opening and closing method of the charging door from an electric open structure to a swing behavior opening and closing structure by manual operation, thereby reducing the number of components and reducing the weight of the parts and lowering the cost. It is to provide a swing behavior retractable charging door device for electric vehicles.

Another technical problem to be solved by the present invention is to provide a swing behavior retractable charging door device for an electric vehicle with improved operating performance by adopting an open structure in which pressure is not applied in the open direction of the charging door during manual operation.

The present invention for solving the above problems is a housing fixed to the body panel; a charging door installed so as to be able to open and close with respect to the housing in a swing motion in the vertical direction; a hinge assembly for installing the charging door with respect to the housing in a vertical swing motion type opening and closing method; a locking mechanism for controlling an open state and a closed state of the charging door with respect to the housing; and a handle for manually operating an opening operation for the locking mechanism, wherein the handle is rotatably provided along a surface of the charging door for the opening operation.

Here, the charging door may include an outer door on which the handle is disposed; and an inner door coupled to an inner side of the outer door and disposed with the locking mechanism, wherein the locking mechanism is movably disposed on a front surface of the inner door and the hinge assembly is provided on a rear surface of the inner door can be placed.

In addition, the hinge assembly may include a fixed hinge coupled to the housing; a movable hinge coupled to the charging door; a pair of hinge arms connecting the fixed hinge and the movable hinge by a hinge connection; a hinge pin hinge-coupled between the fixed hinge and one end of the hinge arm; and a torsion spring installed at a hinge coupling portion between the fixed hinge and one end of the hinge arm to provide an elastic force in an opening direction with respect to the hinge arm.

In addition, each of the fixed hinge and the hinge arm may include a protrusion for supporting a free end of the torsion spring.

In addition, the locking mechanism may include: a locking rod catch that moves in association with the rotational operation of the handle and converts the charging door to a closed state when it is fastened to the housing; and a return spring coupled to the locking rod catch and providing an elastic force in a locking direction to the locking rod catch to convert the charging door to a closed state.

In addition, the locking rod catch is provided to slide when the handle rotates, and when the locking rod catch is inserted into the fastening hole of the housing, the charging door may be switched to a closed state.

In addition, the locking rod catch may include a first rod catch disposed on the inner door to be fastened to the housing and sliding in one direction by rotation of the handle; and a second rod catch disposed on the inner door part so as to be fastened to the housing and sliding in one direction opposite to the first rod catch by interlocking with the first rod catch by rotation of the handle, The first rod catch and the second rod catch may be respectively coupled to the return spring to slide in the locking direction by an elastic force provided by the return spring.

In addition, the swing behavior retractable charging door device for an electric vehicle according to an embodiment of the present invention includes: a pinion gear connected between the first rod catch and the second rod catch to interlock the first rod catch and the second rod catch; and a rack gear that meshes with the pinion gear and is provided on the first rod catch and the second rod catch, respectively.

In addition, in the swing behavior retractable charging door device of the electric vehicle according to the embodiment of the present invention, the rack gear insertion groove is provided in at least one of the first rod catch and the second rod catch so as not to interfere with the movement direction of the rack gear. may further include.

On the other hand, the handle, the handle body disposed on the outer door portion; and a gear connecting pin coupled to the handle body and the pinion gear to interlock the rotation of the handle body and the rotation of the pinion gear.

In addition, the swing behavior opening and closing type charging door device for an electric vehicle according to an embodiment of the present invention may further include a mounting bracket disposed on the inner door portion and guiding the sliding movement of the locking rod catch.

In this case, each of the first rod catch and the second rod catch may include an extension portion protruding to be coupled to the mounting bracket.

In addition, a through hole for accommodating the locking rod catch is provided in the inner door part, and the through hole may be formed at a position communicable with a fastening hole of the housing into which the free end of the locking rod catch is inserted.

The swing behavior opening/closing charging door device for an electric vehicle according to an embodiment of the present invention uses a locking mechanism that slides according to the rotation of the handle in an opening/closing method for a charging door provided in an electric vehicle in an existing electric driving type opening/closing structure. By changing the swing behavior to the retractable structure by manual operation, the number of parts required to constitute the retractable structure of the charging door can be reduced, thereby reducing the weight of the entire component and thereby lowering the manufacturing cost of the parts. do.

In addition, the swing behavior opening and closing type charging door device for an electric vehicle according to an embodiment of the present invention changes the operation method for opening the charging door from the conventional button operation inside the vehicle to an external operation method by a handle provided in the charging door. , it is possible to improve the user's convenience in opening and closing the charging door for charging the electric vehicle.

In addition, the swing behavior retractable charging door device for an electric vehicle according to an embodiment of the present invention has a locking mechanism that is converted from a closed state to an open state by rotating the handle, and a four-section link structure installed between the housing and the charging door. Since the opening and closing of the charging door can be implemented as a vertical swing type opening and closing method through the hinge assembly, it can be used sufficiently even when the space between the charging facility and the charging door is narrow, thereby increasing the space utilization. there will be

In addition, the swing behavior opening and closing type charging door device of the electric vehicle according to the embodiment of the present invention is opened and closed by the rotation operation of the handle rather than the push method by a button, so that pressure is not applied in the opening direction of the charging door. operation performance can be improved.

1 is a perspective view illustrating a closed state of a swing behavior retractable charging door device of an electric vehicle according to an embodiment of the present invention.
FIG. 2 is a perspective view showing only the outer door part constituting the charging door in the swing behavior opening and closing type charging door device of the electric vehicle according to the embodiment of the present invention.
3 is a view showing the fastening state of the locking mechanism to the housing by removing the entire portion of the outer door and the inner door constituting the charging door in the swing behavior retractable charging door device of the electric vehicle according to the embodiment of the present invention, and the hinge assembly. It is a perspective view showing the installation state of each.
4 is a perspective view showing the arrangement relationship between the locking mechanism, the inner door part, and the hinge assembly.
5 is an exploded view and an assembled view of the hinge assembly.
6 is a side view showing an open state of the swing behavior retractable charging door device of the electric vehicle according to the embodiment of the present invention.
7A to 7C are diagrams illustrating a state in which a closed state or an open state is switched according to the rotation of the handle.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be construed to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, terms such as first, second, etc. may be used to describe various components, but the components may not be limited by the terms. The above terms are only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

The term “and/or” may include a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may exist in between. can be understood On the other hand, when an element is referred to as being “directly connected” or “directly connected” to another element, it may be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression may include the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and one or more other features It may be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary may be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, it is interpreted in an ideal or excessively formal meaning. it may not be

In addition, the following embodiments are provided to more completely explain to those with average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for more clear explanation.

1 to 4, the swing behavior retractable charging door device for an electric vehicle according to an embodiment of the present invention is installed fixed to a body panel and includes a housing 10 for accommodating a charging port for charging the battery, It is coupled to the housing 10 and has a structure that can open and close the charging door 20 with respect to the housing 10 in a vertical swing motion method.

To this end, the present invention provides a locking mechanism 30 for selectively switching and adjusting an open state and a closed state of the charging door 20 with respect to the housing 10, and the charging door 20 with respect to the housing 10 in the vertical direction. The hinge assembly 40 that opens and closes in a swinging behavior method may include a handle 50 rotatably provided along the surface of the charging door 20 to manually operate the open and closed states of the charging door 20 there is.

At this time, as described above, the housing 10 is fixed to the body panel, and accommodates a charging port including a charging device (not shown) including a charging socket, but when the charging door 20 is opened, the charging port In order to expose the to the outside, the central portion may include an opening in the form of a perforation.

The charging door 20 is provided so that it can be operated in a swing-action type opening and closing method in the vertical direction with respect to the housing 10, and the outer door part 21 and the outer door part 21 on which the handle 50 is disposed. It may include an inner door portion 22 coupled to the inside of the locking mechanism 30 is disposed.

In this case, the locking mechanism 30 may be disposed on the front surface of the inner door part 22 to be movable, and the hinge assembly 40 may be disposed on the rear surface of the inner door part 22 .

More specifically, the inner door part 22 may be arranged so that the locking rod catch 31 of the locking mechanism 30 can slide. In addition, the movable hinge 42 of the hinge assembly 40 may be fixed to the inner door part 22 .

The locking mechanism 30 may be provided to adjust an open state and a closed state of the charging door 20 with respect to the housing 10 . The locking mechanism 30 moves in association with the rotational operation of the handle 50, and when it is fastened to the housing 10, the locking rod catch 31 and the locking rod catch that converts the charging door 20 to a closed state ( 31) and may include a return spring 32 that provides an elastic force in the locking direction to the locking rod catch 31 in order to convert the charging door 20 to a closed state.

At this time, the locking rod catch 31 may be provided to slide when the handle 50 rotates. In addition, when the free end of the locking rod catch 31 is inserted into the fastening hole 11 provided in the housing 10 , the charging door 20 may be switched to a closed state.

The locking rod catch 31 may include a first rod catch 34 and a second rod catch 35 .

The first rod catch 34 may be disposed on the inner door 22 so as to be fastened to the housing 10 . More specifically, the first rod catch 34 can slide in one direction by rotation of the handle 50 , and the free end of the first rod catch 34 has a fastening hole located on one side of the housing 10 . It may be inserted into (11) and fastened to the housing (10).

The second rod catch 35 may be disposed on the inner door 22 so as to be fastened to the housing 10 . More specifically, the second rod catch 35 slides in association with the first rod catch 34, and slides in one direction opposite to the one direction in which the first rod catch 34 slides. . The free end of the second rod catch 35 may be inserted into the fastening hole 11 located on the other side of the housing 10 to be fastened to the housing 10 .

When the first rod catch 34 is fastened to the fastening hole 11 located on one side of the housing 10 and the second rod catch 35 is fastened to the fastening hole 11 located on the other side of the housing 10, charging The door 20 is in a closed state.

On the other hand, the locking direction of the above-described locking rod catch 31 is a direction in which the first rod catch 34 and the second rod catch 35 move away from each other as a direction in which the first rod catch 34 and the second rod catch 35 move toward the fastening hole 11 of the housing 10 . It may mean a direction of sliding movement in each direction.

Therefore, the opening direction of the locking rod catch 31 is opposite to the locking direction and means a direction in which the first rod catch 34 and the second rod catch 35 slide each other in a direction closer to each other. can

At this time, the first rod catch 34 and the second rod catch 35 can each move in the locking direction by the elastic force provided from the return spring 32, and through this, the first rod catch 34 ) and the second rod catch 35 may be respectively inserted into the fastening hole 11 of the housing 10 .

In the embodiment of the present invention, it may further include a pinion gear 36 and a rack gear 37 . At this time, the interlocking of the sliding movement between the first rod catch 34 and the second rod catch 35 may be implemented by the pinion gear 36 and the rack gear 37 (refer to FIG. 4).

The pinion gear 36 is rotatably installed with respect to the inner door part 22 of the charging door 20 . The pinion gear may be connected between the first rod catch 34 and the second rod catch 35 .

The rack gear 37 is provided separately for each of the first rod catch 34 and the second rod catch 35 for meshing with the pinion gear 36 , and the upper and lower portions are centered on the pinion gear 36 . can be located in each.

Accordingly, the first rod catch 34 and the second rod catch 35 can move simultaneously in either the opening direction or the locking direction by the meshing between the pinion gear 36 and the rack gear 37 . there is.

In this case, a rack gear insertion groove 39 may be provided in at least one of the first rod catch 34 and the second rod catch 35 so as not to interfere with the movement direction of the rack gear 37 . The rack gear insertion groove 39 may be provided corresponding to a position at which the rack gear 37 moves horizontally, and may be provided by being depressed in the direction in which the rack gear 37 moves to open the charging door 20 . can In addition, the depth at which the rack gear insertion groove 39 is recessed can be formed to an appropriate depth so as not to interfere with the rack gear 37 when the charging door 20 is fully open (refer to FIG. 7C ). Of course. Through this structure, the rack gear 37 can be formed long enough to improve the operability of the locking rod catch 31, and it is not necessary to increase the size of the entire device, thereby contributing to the miniaturization of the device.

Meanwhile, the charging door 20 may include a mounting bracket 23 to guide the sliding movement of the locking rod catch 31 . At this time, the mounting bracket 23 is disposed on the inner door part 22 and is provided at an appropriate position to guide the movement of the first rod catch 34 and the second rod catch 35 .

In addition, the first rod catch 34 and the second rod catch 35 have an extension 38 protruding so as to be coupled to the mounting bracket 23 in order to guide the sliding movement by the mounting bracket 23 . It can be provided integrally.

In addition, the first rod catch 34 and the second rod catch 35 included in the locking rod catch 31 are individually provided on the inner door part 22 of the charging door 20, respectively, as shown in FIG. A through hole 24 that can be accommodated may be provided.

At this time, the through hole 24 is formed at a position capable of communicating with the fastening hole 11 of the housing 10 provided to insert the free ends of the first rod catch 34 and the second rod catch 35 individually, respectively. can That is, the through hole 24 of the inner door part 22 and the fastening hole 11 of the housing 10 may be provided at positions corresponding to each other.

The free end of the first rod catch 34 may be inserted into the through hole 24 provided in the inner door 22 and simultaneously inserted into the fastening hole 11 of the housing 10 . Through this, the first rod catch 34 may be fastened to the housing 10 .

The free end of the second rod catch 35 may be inserted into the through hole 24 provided in the inner door 22 and simultaneously inserted into the fastening hole 11 of the housing 10 . Through this, the second rod catch 34 may be fastened to the housing 10 .

When the first rod catch 34 and the second rod catch 35 are fastened to the housing 10 , the charging door 20 may be switched to a closed state.

The hinge assembly 40 is a device for opening and closing the charging door 20 with respect to the opening of the housing 10 in a vertical swing motion method, and is coupled to both end portions from the front side of the housing 10 as shown in FIG. A fixed hinge 41 that is fixed and fixed, a movable hinge 42 coupled to a position corresponding to the fixed hinge 41 in the inner door part 22 of the charging door 20, the fixed hinge 41 and the movable hinge 42 ) A pair of hinge arms 43 for connecting between them by a hinge connection, a hinge pin for hinged coupling between one end of at least one of the fixed hinge 41 and the pair of hinge arms 43 (44) and a torsion spring installed at the hinge coupling portion between the fixed hinge 41 and one end of the hinge arm 43 to always provide an elastic force to the hinge arm 43 in the open direction with respect to the fixed hinge 41 ( 45) may be included.

At this time, the free ends disposed on both ends of the torsion spring 45 are respectively supported with respect to the protrusion 41a included in the fixed hinge 41 and the protrusion 43a included in the hinge arm 43 . ) can be placed. This is to enable the hinge arm 43 to pivot in the opening direction through the elastic force of the torsion spring 45 .

For example, the hinge assembly 40 may be configured in a four-section link structure to implement the opening and closing method of the charging door 20 with respect to the housing 10 in a vertical swing motion method. This means that the two hinge arms 43 are hinge-coupled to have independent hinge support points for the fixed hinge 41 and the movable hinge 42, respectively, and each hinge arm 43 moves the charging door 20 in the vertical direction. It is possible because it is formed to have an appropriate curvature to open and close in a swinging behavior method. However, since the swing movement of the swing behavior method by the 4-section link structure is a known issue, detailed descriptions will be omitted.

The handle 50 is configured to be rotatably provided along the surface of the charging door 20 in order to manually manipulate the open and closed states of the charging door 20 through an external force. In the embodiment of the swing behavior retractable charging door device for an electric vehicle of the present invention, the handle 50 may include a handle body 51 and a gear connecting pin 52 .

7A to 7C are diagrams illustrating a state in which a closed state or an open state is switched according to the rotation of the handle. 7A to 7C, for convenience of explanation of the operation in which the pinion gear 36 is interlocked according to the rotation of the handle 50, the outer door part 21 is excluded.

6 and 7A to 7C , the handle body 51 is disposed on the outer door portion 21 of the charging door 20 and may be elongated in the vertical direction. For example, the handle body 51 may have a hexahedral shape having a narrow width and a long length. Alternatively, as another example, the handle body 51 may have a cylindrical shape having a small diameter and a long length. Or as another example, the handle body 51 has a cylindrical shape with a small diameter and a long length, but one side in the longitudinal direction adopts a shape such that the diameter is gradually smaller than the other side, so that the full opening of the charging door 20 is adopted. It may be configured to intuitively grasp only the shape in which the handle body 51 is disposed between the in state and the closed state.

As such, by adopting the shape of the handle body 51 having a small width or diameter and a relatively long length, the space occupied is small, so even when the charging door 20 is installed in the vehicle bonnet, the shape of the radiator grill is relatively small. It has the advantage of increasing the degree of freedom in design.

The gear connecting pin 52 may be coupled to the handle body 51 and coupled to the pinion gear 36 to serve as a medium interlocking the rotation of the handle body 51 and the rotation of the pinion gear 36 . The gear connecting pin 52 may be provided to protrude from the center of the handle body 51 , and the protruded and extended portion may be coupled to the pinion gear 36 .

When the handle body 51 rotates counterclockwise along the surface of the outer door 21 by the coupling of the gear connecting pin 52, the pinion gear 36, and the handle body 51, the pinion gear 36 also It can rotate counterclockwise and the first rod catch 34 and the second rod catch 35 coupled to the pinion gear 36 can slide in a direction approaching each other.

On the other hand, when the handle body 51 rotates clockwise along the surface of the outer door part 22 , the pinion gear 36 can also rotate clockwise and the first rod catch 34 coupled to the pinion gear 36 . ) and the second rod catch 35 can slide in a direction away from each other. (See FIGS. 7A to 7C )

6 is a side view illustrating an open state of the swing behavior retractable charging door device of an electric vehicle according to an embodiment of the present invention.

Referring to FIG. 6 , the charging door 20 may be opened along a path of moving upward in the Y direction after first moving forward a predetermined distance in the X direction while being opened by the rotational operation of the handle 50 . At this time, the rotation operation of the handle 50 is made along the surface of the outer door part 22 by the external force applied by the user. In other words, the rotation of the handle 50 is made on the YZ plane. In other words, the rotation of the handle 50 is made on a plane orthogonal to the direction in which the charging door 20 moves forward before the upward movement for opening. That is, the external force applied to the handle 50 does not press in the opposite direction in either the X direction or the Y direction, which is the direction in which the charging door 20 moves.

Assuming that the swing behavior method is opened and closed through the push button, the pressure in the direction opposite to the X direction is made by the operation of pressing the push button, which prevents the opening operation of the charging door 20, so that the charging door 20 ) may adversely affect the operability of That is, as a force that prevents the opening operation is repeatedly applied, a failure may occur in the opening/closing structure of the charging door 20 .

In contrast, the swing behavior retractable charging door device of the electric vehicle according to the embodiment of the present invention has a structure in which pressure is not made in a direction that prevents the opening operation when the charging door 20 is opened, and thus high operability is guaranteed. can be

As described above, the swing behavior opening and closing type charging door device for an electric vehicle according to an embodiment of the present invention is a device that slides and moves according to the rotation of the handle in the conventional electric driving type opening and closing structure for the opening and closing method of the charging door provided in the electric vehicle. By changing the swing behavior opening and closing structure by manual operation through the locking mechanism, the quantity of parts required to constitute the opening and closing structure of the charging door can be reduced, thereby reducing the weight of the entire parts and consequently the manufacturing cost of the parts can be lowered.

In addition, the swing behavior opening and closing type charging door device for an electric vehicle according to an embodiment of the present invention changes the operation method for opening the charging door from the conventional button operation inside the vehicle to an external operation method by a handle provided in the charging door. , it is possible to improve the user's convenience in opening and closing the charging door for charging the electric vehicle.

In addition, the swing behavior retractable charging door device for an electric vehicle according to an embodiment of the present invention has a locking mechanism that is converted from a closed state to an open state by rotating the handle, and a four-section link structure installed between the housing and the charging door. Since the opening and closing of the charging door can be implemented as a vertical swing type opening and closing method through the hinge assembly, it can be used sufficiently even when the space between the charging facility and the charging door is narrow, thereby increasing the space utilization. there will be

In addition, the swing behavior opening and closing type charging door device of the electric vehicle according to the embodiment of the present invention is opened and closed by the rotation operation of the handle rather than the push method by a button, so that pressure is not applied in the opening direction of the charging door. operation performance can be improved.

Although the embodiments have been described above with reference to the accompanying drawings, the invention is not limited to the above embodiments, but may be manufactured in various different forms by combining the contents disclosed in each embodiment, and is commonly known in the art to which the invention pertains. Those skilled in the art will be able to understand that the invention may be implemented in other specific forms without changing the technical spirit or essential features of the invention. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

10: housing
11: fastening hole
20: charging door
21: outer door part
21a: through hole
22: inner door part
23: mounting bracket
24: through hole
30: locking mechanism
31: locking rod catch
32: return spring
34: first load catch
35: second rod catch
36: pinion gear
37: rack gear
38: extension
39: rack gear insertion groove
40: hinge assembly
41: fixed hinge
41a: protrusion
42: movable hinge
43: hinge arm
43a: protrusion
44: hinge pin
45: torsion spring
50: handle
51: handle body
52: gear connecting pin

Claims (13)

a housing fixed to the body panel;
a charging door installed so as to be able to open and close with respect to the housing in a swing motion in the vertical direction;
a hinge assembly for installing the charging door with respect to the housing in a vertical swing motion type opening and closing method;
a locking mechanism for controlling an open state and a closed state of the charging door with respect to the housing; and
and a handle for manually operating an opening operation for the locking mechanism,
and the handle is rotatably provided along the surface of the charging door for the opening operation.
According to claim 1,
The charging door is
an outer door on which the handle is disposed; and
and an inner door coupled to the inside of the outer door and disposed with the locking mechanism;
The swing behavior retractable charging door device for an electric vehicle, characterized in that the locking mechanism is movably disposed on the front surface of the inner door part, and the hinge assembly is disposed on the rear surface of the inner door part.
According to claim 1,
The hinge assembly
a fixed hinge coupled to the housing;
a movable hinge coupled to the charging door;
a pair of hinge arms connecting the fixed hinge and the movable hinge by a hinge connection;
a hinge pin hinge-coupled between the fixed hinge and one end of the hinge arm; and
and a torsion spring installed at a hinge coupling portion between the fixed hinge and one end of the hinge arm to provide an elastic force in an opening direction with respect to the hinge arm.
4. The method of claim 3,
The fixed hinge and the hinge arm each include a protrusion for supporting a free end of the torsion spring.
3. The method of claim 2,
The locking mechanism is
a locking rod catch that moves in association with the rotational operation of the handle and converts the charging door to a closed state when it is fastened to the housing; and
and a return spring coupled to the locking rod catch and providing an elastic force in a locking direction to the locking rod catch to convert the charging door to a closed state.
6. The method of claim 5,
The locking rod catch is provided to slide when the handle rotates,
When the locking rod catch is inserted into the fastening hole of the housing, the charging door is switched to a closed state.
7. The method of claim 6,
The locking rod catch,
a first rod catch disposed on the inner door to be fastened to the housing and sliding in one direction by rotation of the handle; and
and a second rod catch disposed on the inner door so as to be fastened to the housing and sliding in one direction opposite to the first rod catch by interlocking with the first rod catch by rotation of the handle;
and the first rod catch and the second rod catch are respectively coupled to the return spring and slide in the locking direction by an elastic force provided by the return spring.
8. The method of claim 7,
a pinion gear connected between the first rod catch and the second rod catch to interlock the first rod catch and the second rod catch; and
and a rack gear meshed with the pinion gear and provided on the first and second rod catches, respectively.
9. The method of claim 8,
The swing behavior retractable charging door device for an electric vehicle further comprising a rack gear insertion groove provided in at least one of the first rod catch and the second rod catch so as not to interfere with the movement direction of the rack gear.
9. The method of claim 8,
The handle is
a handle body disposed on the outer door part; and
and a gear connecting pin coupled to the handle body and the pinion gear to link the rotation of the handle body and the rotation of the pinion gear.
9. The method of claim 8,
The swing behavior opening and closing charging door device for an electric vehicle further comprising a mounting bracket disposed on the inner door part and guiding the sliding movement of the locking rod catch.
12. The method of claim 11,
The swing behavior retractable charging door device for an electric vehicle, characterized in that the first rod catch and the second rod catch each have an extended portion protruding to be coupled to the mounting bracket.
7. The method of claim 6,
A through hole for accommodating the locking rod catch is provided in the inner door part,
The through hole is formed at a position capable of communicating with the fastening hole of the housing into which the free end of the locking rod catch is inserted.

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