KR20220000278A - Cover opening and closing apparatus for charging - Google Patents

Abstract

The present invention relates to a cover opening and closing device for charging a vehicle, and more particularly, to a cover opening and closing device for charging a vehicle that opens and closes a cover so that a charging port for charging a battery of the vehicle is not exposed or exposed to the outside. .
A cover opening and closing device for charging a vehicle according to an embodiment of the present invention includes: a cover that is slidably rotated on a port housing provided with a charging port for charging a battery; and a cover guide part for sliding and rotating the cover spaced apart from the port housing by a predetermined distance, wherein the cover guide part includes: a lead screw; a nut member screw-coupled to the lead screw and integrally rotated with the lead screw when the cover rotates; and a guide member having a plurality of guide grooves for guiding the movement of the protruding rib provided in any one of the lead screw and the nut member, wherein the plurality of guide grooves are formed to extend in the direction of the rotation axis of the cover. a first guide groove to enable the protruding rib to move in the direction of the rotation axis of the cover; and a second guide groove formed to extend in the rotational direction of the cover to enable the protruding rib to move in the rotational direction of the cover.

Description

Cover opening and closing apparatus for charging of a vehicle

The present invention relates to a cover opening and closing device for charging a vehicle, and more particularly, to a cover opening and closing device for charging a vehicle that opens and closes a cover so that a charging port for charging a battery of the vehicle is not exposed or exposed to the outside. .

In general, electric vehicles are provided with a charging port for charging the battery, and the cover for opening and closing the charging port is rotated so that one side moves away from or closer to the body surface of the electric vehicle, similar to the fuel port opening/closing cover, when changing the position of the cover. There is a limit to reducing the space used.

That is, when the position of the cover is changed so that the charging port is opened, the distance from the body surface of the electric vehicle to the end at which the cover protrudes increases. This will increase the likelihood that the cover will be damaged.

Therefore, there is a need for a method to reduce the possibility of damage to the cover by reducing the space required when the position of the cover for opening and closing the charging port is changed.

Publication No. 10-2019-0072075 (published on June 25, 2019)

The present invention was devised to solve the above problems, and the technical object of the present invention is to reduce the space required when opening and closing a cover that exposes or does not expose a charging port for charging a vehicle's battery to the outside. It is to provide a cover opening and closing device for charging a vehicle.

Another object of the present invention is to provide a cover opening and closing device for charging a vehicle that can adjust the position of the cover even in a situation in which a driving force for opening and closing the cover is not generated.

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

In order to achieve the above object, a cover opening and closing device for charging a vehicle according to an embodiment of the present invention includes: a cover that slides and rotates on a port housing provided with a charging port for charging a battery; and a cover guide part for sliding and rotating the cover spaced apart from the port housing by a predetermined distance, wherein the cover guide part includes: a lead screw; a nut member screw-coupled to the lead screw and integrally rotated with the lead screw when the cover rotates; and a guide member having a plurality of guide grooves for guiding the movement of the protruding rib provided in any one of the lead screw and the nut member, wherein the plurality of guide grooves are formed to extend in the direction of the rotation axis of the cover. a first guide groove to enable the protruding rib to move in the direction of the rotation axis of the cover; and a second guide groove formed to extend in the rotational direction of the cover to enable the protruding rib to move in the rotational direction of the cover.

The cover may be coupled to rotate integrally with any one of the lead screw and the nut member.

The second guide groove may be formed in a position closer to the cover than the first guide groove in a rotation axis direction of the cover.

The first guide groove, an insertion hole for insertion or separation of the protruding rib is formed at one end close to the cover, and the second guide groove is formed such that one end close to the first guide groove communicates with the insertion hole. can

Any one of the lead screw and the nut member, when the protruding rib is located in the first guide groove, is linearly moved in the direction of the rotation axis of the cover when the other one of the lead screw and the nut member rotates to form the port housing and The distance between the covers may be adjusted.

Any one of the lead screw and the nut member may rotate about a rotation axis of the cover when the other one of the lead screw and the nut member is rotated when the protruding rib is positioned in the second guide groove so that the cover is closed. It can be rotated by sliding.

The cover, after being moved away from the port housing by the first guide groove in the first position, is rotated to a second position by the second guide groove, and in the second position by the second guide groove After being rotated to the first position, it may be moved closer to the port housing by the first guide groove.

It further includes a plurality of partition walls respectively formed near both ends of the second guide groove, and when the cover is rotated, the protruding rib comes into contact with any one of the plurality of partition walls so that the rotation range of the cover can be defined.

Among the plurality of partition walls, the partition wall formed at a position close to the first guide groove may include the first guide groove based on the first guide groove so that the protruding rib moving along the second guide groove can be inserted into the first guide groove. 2 It may be formed on the opposite side of the guide groove.

It further includes a driving unit for generating a driving force for sliding rotation of the cover, wherein the driving unit includes: an actuator; a driving gear for transmitting a driving force of the actuator to one of the lead screw and the nut member; and a driving force transmitting unit transmitting the driving force of the actuator to the driving gear.

The driving force transmitting unit may include: a first gear rotated by a driving force of the actuator; and a second gear that rotates about the same central axis as the first gear and transmits the driving force transmitted from the first gear to the driving gear.

Further comprising a transmission gear rotated about the central axis so as to transmit the driving force of the actuator to the first gear, the transmission gear may include a shaft whose end is inserted into the hollow of the first gear.

The shaft of the transmission gear may have a non-circular cross-sectional shape.

In each of the first gear and the second gear, insertion protrusions and insertion grooves may be alternately formed on surfaces facing each other in a circumferential direction about the central axis.

The insertion groove of any one of the first gear and the second gear, the other insertion projection is inserted and positioned, the insertion groove, the bottom surface; and a plurality of sidewalls respectively formed on both sides of the bottom surface in a circumferential direction about the central axis.

An angle between the bottom surface and the sidewall may be at least 90 degrees or more.

The driving force transmission unit may further include a housing in which the first gear and the second gear are accommodated, and between the first gear and an inner surface of the housing, the first gear is movable in the central axis direction. 1 An elastic member for elastically supporting the gear may be positioned.

An external force applied to the cover in a state in which the driving force is not generated is transmitted to the second gear through the driving gear, and the first gear compresses the elastic member by the external force transmitted to the second gear. When the first gear and the second gear are moved in the direction of making the cover, the second gear is rotated through a process in which the insertion protrusion of any one of the first gear and the second gear is separated from the other insertion groove and inserted into the other adjacent insertion groove. can be rotated.

Other specific details of the invention are included in the detailed description and drawings.

According to the cover opening and closing device for charging the vehicle of the present invention as described above, there are one or more of the following effects.

Since the cover is slidably rotated on the port housing so that the charging port is not exposed or exposed to the outside, the space required for opening and closing the cover can be reduced.

In addition, since the cover can be rotated by applying a force to the cover from the outside even in a situation in which a driving force for opening and closing the cover is not generated, there is an effect that can be quickly dealt with when a failure of the cover occurs.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 and 2 are perspective views showing a cover opening and closing device for charging a vehicle according to an embodiment of the present invention.
3 is a side view illustrating a cover opening and closing device for charging a vehicle according to an embodiment of the present invention;
4 and 5 are exploded perspective views showing a cover opening and closing device for charging a vehicle according to an embodiment of the present invention.
6 is a perspective view showing a cover slidably rotated from a first position to a second position according to an embodiment of the present invention;
7 to 11 are side views showing a cover guide unit according to an embodiment of the present invention.
12 and 13 are exploded perspective views showing a driving unit according to an embodiment of the present invention.
14 is a cross-sectional view showing a driving unit according to an embodiment of the present invention.
15 is a schematic view showing an insertion groove of the first gear according to an embodiment of the present invention.
16 is a schematic view showing the insertion groove of the first gear and the insertion protrusion of the second gear according to an embodiment of the present invention.
17 is a schematic view showing the first gear moving in the central axis direction of the first gear and the second gear according to an embodiment of the present invention.
18 is a cross-sectional view showing the first gear moving in the central axis direction of the first gear and the second gear according to the embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Accordingly, in some embodiments, well-known process steps, well-known structures, and well-known techniques have not been specifically described in order to avoid obscuring the present invention.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, includes and/or comprising means not excluding the presence or addition of one or more other components, steps and/or actions other than the stated components, steps and/or actions. use it as And, “and/or” includes each and every combination of one or more of the recited items.

Further, the embodiments described herein will be described with reference to perspective views, cross-sectional views, side views, and/or schematic views that are ideal illustrative views of the present invention. Accordingly, the shape of the illustrative drawing may be modified due to manufacturing technology and/or tolerance. Accordingly, the embodiments of the present invention are not limited to the specific form shown, but also include changes in the form generated according to the manufacturing process. In addition, in each of the drawings shown in the present invention, each component may be enlarged or reduced to some extent in consideration of convenience of description.

Hereinafter, the present invention will be described with reference to the drawings for explaining a cover opening and closing device for charging a vehicle according to embodiments of the present invention.

1 and 2 are perspective views showing a cover opening and closing device for charging a vehicle according to an embodiment of the present invention, and FIG. 3 is a side view showing a cover opening and closing device for charging a vehicle according to an embodiment of the present invention. , FIGS. 4 and 5 are exploded perspective views illustrating a cover opening and closing device for charging a vehicle according to an embodiment of the present invention.

1 to 5 , the cover opening and closing device 1 for charging a vehicle according to an embodiment of the present invention may include a cover 100 , a cover guide unit 200 , and a driving unit 300 . .

In an embodiment of the present invention, the cover opening and closing device 1 for charging a vehicle is used for charging a battery of an electric vehicle that obtains power through driving of an electric motor using the power of the battery. However, without being limited thereto, the cover opening and closing device 1 for charging a vehicle of the present invention includes a charging port for charging a battery of a vehicle using an electric motor or an internal combustion engine as a power source or a fuel port for fuel injection. It can be used for purposes that are exposed or not exposed.

The cover 100 exposes the charging port electrically connected to the charging gun to the outside when the electric vehicle, which obtains power through the driving of the motor using the power of the battery, wants to charge the battery at a charging station, etc. When charging, the charging port is not exposed to the outside, so that it can serve to prevent damage or defects of the charging port due to external shocks or inflow of foreign substances.

The charging port can be electrically connected to the charging gun of the charging station through the opening 410 of the port housing 400 provided in the vehicle body, and the cover 100 is positioned so that the port housing 400 is covered in the first position. The charging port is not exposed to the outside, and when the battery needs to be charged, the position is changed from the first position to the second position so that the port housing 400 is exposed to the outside so that the charging port is exposed to the outside.

At this time, in a vehicle using an internal combustion engine as a power source, the fuel port is located in the opening 410 of the port housing 400 similar to an electric vehicle, so that fuel injection is possible. In this case, the term port housing 400 is It may vary depending on the type of power source.

The above-described FIGS. 1 to 5 are an example of a case in which the cover 100 is in the first position so that the port housing 400 is covered, and the cover 100 is slidably rotated to rotate in any one of the first position and the second position. In the case where the position is changed from the first position to the second position due to the sliding rotation of the cover 100, the port housing 400 may be exposed as shown in FIG. 6, and the opening of the port housing 400 ( 410), by connecting the charging gun to the charging port, it becomes possible to charge the battery.

The sliding rotation of the cover 100 in the embodiment of the present invention means that the cover 100 is rotated while the facing surfaces of the cover 100 and the port housing 400 are approximately parallel to each other, and the cover ( 100) and the port housing 400 may be included in a case in which the cover 100 is slidably rotated in a contact or non-contact state.

At this time, in the embodiment of the present invention, when the cover 100 is slidably rotated to change the position, one end of the cover 100 is moved away from the port housing 400 so that the charging port is exposed to the outside for charging the battery. When the position is changed by rotating to get closer, the space required for changing the position of the cover 100 increases because the end at which the cover 100 protrudes from the body surface of the vehicle is relatively farther away from the body surface of the vehicle. This is because, in this case, the likelihood that the cover 100 will collide with a nearby vehicle or pedestrian and be damaged increases.

The cover guide part 200 serves to adjust the spacing between the cover 100 and the port housing 400, and structural interference with the vehicle body while the cover 100 is slidably rotated between the first position and the second position. This can play a role in preventing this from happening.

That is, the cover 100 forms an outline corresponding to the body line of the vehicle at the first position when the battery is not charged, and is positioned so that the sense of heterogeneity due to the cover 100 is minimized, and in this state, the cover 100 is When the cover 100 is slidably rotated from the first position to the second position, it is difficult to rotate the cover 100 normally due to structural interference between the cover 100 and the vehicle body, and even if the cover 100 is slidably rotated, the cover 100 ) due to the sliding rotation of the vehicle body surface may be scratched or deformed.

Therefore, in the embodiment of the present invention, the cover 100 is slidably rotated between the first position and the second position in a state where the cover 100 is spaced apart from the port housing 400 by a predetermined distance by the cover guide unit 200 . This is to prevent structural interference between the cover 100 and the vehicle body from occurring.

In other words, when the battery is not charged, the cover 100 is positioned closer to the port housing 400 in the first position than in the second position to form a body line of the vehicle, and the battery needs to be charged, so the cover 100 is rotated from the first position to the second position or when the battery is fully charged and the cover 100 is rotated from the second position to the first position, compared to when the battery is not charged, the cover 100 moves to the port housing 400 It is spaced apart so as to be located relatively far from it.

The cover guide part 200 may include a lead screw 210 , a nut member 220 , and a guide member 230 .

The lead screw 210 is formed to extend in the direction of the rotation axis Ax1 of the cover 100 , and the cover 100 is connected to one end of the lead screw 210 to rotate the cover 100 when the lead screw 210 rotates. may rotate integrally with the lead screw 210 about the rotation axis Ax1.

In the embodiment of the present invention, one end of the lead screw 210 passes through the connection hole 420 formed in the port housing 400 and is inserted into the receiving groove 110 formed in the cover 100 , and the lead screw 210 is inserted into the accommodating groove 110 . At least one connection protrusion 211 formed at one end of the accommodating groove 110 is inserted into the at least one connection groove 111 formed in the receiving groove 110, so that the cover 100 is integrally rotated when the lead screw 210 rotates. The case will be described as an example, but the present invention is not limited thereto, and the cover 100 and the lead screw 210 may be coupled to each other so as to rotate integrally through various methods such as screw coupling, hook coupling, and adhesive.

The nut member 220 has a hollow 221 through which the lead screw 210 passes, and threads are formed on the outer circumferential surface of the lead screw 210 and the hollow 221 inner circumferential surface of the nut member 220, respectively, so that the lead screw ( 210 ) and the nut member 220 can be screwed to each other, and when the lead screw 210 is rotatable, the lead screw 210 and the nut member 220 are integrally rotated, and the lead screw 210 . In a state in which the rotation of the nut member 220 is blocked, the lead screw 210 may be linearly moved in the direction of the rotation axis Ax1 when the nut member 220 is rotated.

The nut member 220 may be rotated about the rotation shaft Ax1 by receiving a driving force for sliding and rotating the cover 100 from the driving unit 300 to be described later, and the lead screw 210 is attached to the guide member 230 . Rotation is blocked or enabled by this, so that the cover 100 is moved in the direction of the rotation axis Ax1 or it can be rotated about the rotation axis Ax1.

The guide member 230 includes a first guide groove 231 that enables the lead screw 210 to move in the direction of the rotation axis Ax1 and a second guide that enables the lead screw 210 to rotate about the rotation axis Ax1. A groove 232 may be included, and the guide member 230 includes a first guide groove 231 and a second guide groove 241 provided in the lead screw 210 when the nut member 220 rotates. By positioning it in any one of 232 , the cover 100 may be moved in the direction of the rotation axis Ax1 or may be rotated about the rotation axis Ax1.

At least one protruding rib 241 may be formed at an outer peripheral end of the coupling portion 240 coupled to the other end of the lead screw 210 , and each protruding rib 241 includes a first guide groove 231 and a second guide. The grooves 232 may be formed in pairs.

In the embodiment of the present invention, the coupling part 240 has a through hole 242 through which the other end of the lead screw 210 passes, and is coupled to the coupling groove 212 formed at the other end of the lead screw 210 . A case in which the coupling hole 243 through which the member 243a passes is formed and coupled to the other end of the lead screw 210 will be described as an example, but the present invention is not limited thereto, and the protruding rib 241 is the lead screw 210 ) may be integrally formed at the other end, and in this case, the coupling part 240 may be omitted.

The guide member 230 may have an accommodation space 233 accommodating the other end of the lead screw 210 in the direction of the rotation axis Ax1, and the first guide groove 231 and the second guide groove 232 are accommodated. It may be formed on the sidewall 234 defining the space 233 .

The first guide groove 231 includes the cover 100 and the port housing 400 so that the cover 100 is spaced apart from the port housing 400 by a predetermined distance before the cover 100 is rotated from the first position to the second position. ) may be formed to extend in the direction of the rotation axis Ax1 to have a length corresponding to the spaced apart distance, and the second guide groove 232 may be formed at a predetermined interval from the port housing 400 by the first guide groove 231 . When the spaced apart cover 100 is rotated between the first position and the second position, it is formed to extend in the circumferential direction about the rotation axis Ax1 so as to have a length corresponding to the rotation range of the cover 100, The second guide groove 232 is located closer to the cover 100 than the first guide groove 231 in the direction of the rotation axis (Ax1) so that the cover 100 is slidably rotated after being spaced apart from the port housing 400 by a predetermined interval. can be formed in

The first guide groove 231 may have an insertion hole 231a that enables insertion or separation of the protruding rib 241 at one end close to the cover 100 may be formed, and the second guide groove 232 is the first guide One end close to the first guide groove 231 communicates with the insertion hole 231a of the first guide groove 231 so that the protruding rib 241 separated from the groove 231 is movable along the second guide groove 232 . It can be formed to be

A plurality of partition walls 232a and 232b for defining a rotation range of the protruding rib 241 may be respectively formed near both ends of the second guide groove 232 , and in the following embodiment of the present invention, a plurality of partition walls 232a , 232b) will be referred to as a first partition wall 232a and a second partition wall 232b, respectively.

In this case, when the plurality of partition walls 232a and 232b define the rotation range of the protruding rib 241 , it may be understood that the rotation range of the cover 100 rotated integrally with the lead screw 210 is defined.

The first partition wall 232a is formed at a position far from the insertion hole 231a of the first guide groove 231 to define a rotation angle when the cover 100 is rotated from the first position to the second position, and the second partition wall The 232b may be formed at a position close to the insertion hole 231a of the first guide groove 231 to define a rotation angle when the cover 100 is rotated from the second position to the first position.

At this time, the second partition wall 232b is formed on the opposite side of the second guide groove 232 with respect to the insertion hole 231a of the first guide groove 231 and rotated from the second position to the first position (100). can be inserted into the first guide groove 231 through the insertion hole 231a of the first guide groove 231 .

That is, when the cover 100 is rotated in a direction in which the protruding rib 241 approaches the second partition wall 232b, after the protruding rib 241 comes into contact with the second partition wall 232b, the nut member 220 is Even in the case of rotation, the rotation of the lead screw 210 is blocked so that the lead screw 210 moves in the direction of the rotation axis Ax1 of the cover 100 , and in this case, the protruding rib 241 is formed in the first guide groove 231 . It is moved in the direction of being inserted into the cover 100 and the port housing 400 will be closer to the gap.

Accordingly, when the cover 100 is slidably rotated between the first position and the second position, the rotation range is defined by the first partition wall 232a and the second partition wall 232b, and the nut member 220 at the first position The protruding rib 241 moves along the first guide groove 231 according to the rotation direction of it can be moved

The nut member 220 is rotated in either direction about the rotational shaft Ax1 in accordance with the driving force transmitted from the driving unit 300 so that the lead screw 210 is moved in the rotational axis Ax1 direction or the rotational axis Ax1. It can be rotated around

For example, when the battery is not charged, the protruding rib 241 is positioned in the first guide groove 231 as shown in FIG. 7 , and the nut member 220 is transferred from the driving unit 300 as the battery needs to be charged. When the lead screw 210 is rotated in the first direction by the driving force, the protruding rib 241 is in the first guide groove because the rotation is blocked due to the protruding rib 241 located in the first guide groove 231 . The lead screw 210 is moved linearly to face the insertion hole 231a of the 231, and the cover 100 is linearly moved in the direction of the rotation axis Ax1 as shown in FIG. 241 may be separated from the first guide groove 231 through the insertion hole 231a.

When the protruding rib 241 is separated from the first guide groove 231 through the insertion hole 231a, the lead screw 210 becomes rotatable together with the nut member 220 and the protruding rib 241 as shown in FIG. ) is rotated to be close to the first partition wall 232a so that the cover 100 can be rotated from the first position to the second position as shown in FIG. 6 described above.

Conversely, when the battery is fully charged, the nut member 220 is rotated in the second direction by the driving force of the driving unit 300 so that the cover 100 is rotated from the second position to the first position, and in this case, the protrusion As shown in FIG. 10 , the rib 241 rotates in the opposite direction to that of FIG. 9 to be close to the second partition wall 232b, and the nut member in a state in which the protruding rib 241 is in contact with the second partition wall 232b. Even when 220 is rotated in the second direction, the rotation of the lead screw 210 is blocked and inserted into the first guide groove 231a through the insertion hole 231a of the first guide groove 231 as shown in FIG. The lead screw 210 is linearly moved so that the cover 100 is closer to the port housing 400 .

As described above, the cover opening/closing device 1 for charging a vehicle of the present invention has a structure for adjusting the interval at which the cover 100 is spaced apart from the port housing 400 and a structure for sliding and rotating the cover 100 . Since the linear movement and sliding rotation of the cover 100 are possible by the guide member 230 without separately forming the cover 100 , the cover 100 can be opened and closed through a simple configuration.

Meanwhile, an elastic part 250 such as a coil spring may be positioned between the nut member 220 and the coupling part 240 , and the nut member 220 may be elastically supported by the elastic part 250 . Due to the load of the member 220, the nut member 220 can be prevented from being separated from the original position, that is, from moving downward.

In the above-described embodiment, the protruding rib 241 is provided on the lead screw 210 , and when the nut member 220 rotates, the lead screw 210 moves in the direction of the rotation axis Ax of the cover 100 or the cover 100 ) is described as an example, but is not limited thereto, and when the protruding rib 241 is provided in the nut member 220 , the nut when the lead screw 210 is rotated The member 220 may move in the direction of the rotation axis Ax of the cover 100 or may be rotated about the rotation axis Ax of the cover 100 .

That is, when the lead screw 210 is coupled to rotate integrally with the cover 100 , and the protruding rib 241 is provided in the lead screw 210 , the nut member 220 is driven by a driving force transmitted from the driving unit 300 . ) is rotated, the lead screw 210 moves in the direction of the rotation axis Ax of the cover 100 according to the guide groove in which the protruding rib 241 is located among the first guide groove 231 and the second guide groove 232 . It can be moved or rotated about the axis of rotation Ax of the cover 100 , otherwise the nut member 220 is coupled to rotate so as to rotate integrally with the cover 100 , and the protruding rib 241 is the nut member When provided in 220 , the protruding rib 241 of the first guide groove 231 and the second guide groove 232 is positioned when the lead screw 210 is rotated by the driving force transmitted from the driving unit 300 . The nut member 220 may move in the direction of the rotation axis Ax of the cover 100 or rotate around the rotation axis Ax of the cover 100 according to the guide groove.

The driving unit 300 may serve to provide a driving force for changing the position of the cover 100 .

12 and 13 are exploded perspective views illustrating a driving unit according to an embodiment of the present invention, and FIG. 14 is a cross-sectional view illustrating a driving unit according to an embodiment of the present invention.

12 to 14 , the driving unit 300 according to an embodiment of the present invention may include an actuator 310 , a transmission gear 320 , a driving force transmission unit 330 , and a driving gear 340 . .

The actuator 310 may generate a driving force for changing the position of the cover 100 , and the nut member 220 is bidirectional about the rotation axis Ax1 of the cover 100 according to the driving force generation direction of the actuator 310 . It can be rotated in any one direction.

The driving force generated from the actuator 310 may be transmitted to the driving force transmitting unit 330 through the transmission gear 320 , and the driving gear 340 may transmit the driving force transmitted through the driving force transmitting unit 330 to the nut member 220 . ) to cause the nut member 220 to rotate.

In the embodiment of the present invention, a case in which the driving force of the actuator 310 is transmitted to the transmission gear 320 by a worm gear connected to the rotation shaft of the actuator 310 will be described as an example, but the present invention is not limited thereto. When the gear 320 is directly connected to the rotation shaft of the actuator 310, the worm gear may be omitted.

At this time, in the embodiment of the present invention, a case in which the driving force is transmitted to the nut member 220 by the driving gear 340 will be described as an example, but the present invention is not limited thereto, and the nut member 220 is the cover 100 . The nut member 220 is rotated to rotate integrally with the nut member 220 , depending on the position of the protruding rib 241 provided on the nut member 220 , the nut member 220 is moved in the direction of the rotation axis Ax of the cover 100 or the rotation axis of the cover 100 . When rotating around (Ax), the driving force may be transmitted to the lead screw 210 by the driving gear 340 .

The driving force transmitting unit 330 transmits the first gear 331 receiving the driving force from the transmission gear 320 and the second gear 332 transmitting the driving force transmitted to the first gear 331 to the driving gear 340 . may be included, and the first gear 331 and the second gear 332 may be arranged to rotate about the same central axis Ax2.

In the embodiment of the present invention, the case where the rotation axis Ax1 of the cover 100 and the central axis Ax2 of the first gear 331 and the second gear 332 are positioned parallel to each other is described as an example, It is not limited thereto, and the rotation shaft Ax1 of the cover 100 and the central axis of the first gear 331 and the second gear 332 according to the driving force transmission structure between the driving force transmission unit 330 and the driving gear 340 . (Ax2) may not be parallel to each other.

In addition, in the embodiment of the present invention, the first gear 331 and the second gear 332 are a housing composed of a first case 351 and a second case 352 coupled to each other along the central axis Ax2 direction. A case accommodated in 350 will be described as an example, and at least one coupling protrusion formed in the second case 352 close to the cover 100 among the first case 351 and the second case 352 ( 352a) is caught on the outer surface of the first case 351 and may be coupled to each other, but is not limited thereto. method can be combined.

The first gear 331 and the second gear 332 have insertion protrusions 331a and 332a and insertion grooves 331b and 332b alternately in the circumferential direction about the central axis Ax2 on the surfaces facing each other, respectively. can be formed.

Accordingly, the insertion protrusion 331a of the first gear 331 is inserted into the insertion groove 332b of the second gear 332 , and the second gear 332 is inserted into the insertion groove 331b of the first gear 331 ). When the insertion protrusion 332a is inserted, the driving force transmitted to any one of the first gear 331 and the second gear 332 is transmitted to the other, thereby enabling transmission of the driving force.

The first gear 331 may have a hollow 331c into which the end of the shaft 321 serving as the central axis of the transmission gear 320 is inserted, and the hollow 331c is perpendicular to the central axis Ax2. It may have a shape corresponding to the cross-sectional shape of the shaft 321 in the direction.

In the embodiment of the present invention, a case in which the shaft 321 has a cross-sectional shape of a curved line, a straight line, or a combination thereof will be described as an example, which is a case in which the first gear 331 is rotated when the transmission gear 320 is rotated. ) to rotate integrally.

That is, when the cross-sectional shape of the shaft 321 is circular, the shaft 321 is idle in the hollow 331c of the first gear 331 , and the driving force is transferred from the transmission gear 320 to the first gear 331 . Since there is a possibility that it may not be normally transmitted to the second gear 332 , in the embodiment of the present invention, the driving force is transferred from the transmission gear 320 to the first gear 331 so that the cross-section of the shaft 321 has a non-circular shape. to be transmitted.

The end of the shaft 321 of the transmission gear 320 has a through hole 351a formed in the first case 351 far from the driving gear 340 among the first case 351 and the second case 352 . It may be inserted into the hollow 331c of the first gear 331 through the .

In addition, the transmission gear 320 is positioned so that one end is inserted into the fixing groove 332c formed on the opposite surface of the second gear 332 facing the first gear 331 so that the second gear 332 is in the correct position. A through hole 321a through which the rotation shaft 322 is passed while maintaining and rotating may be formed so that both ends communicate with the shaft 321 of the transmission gear 320 in the direction of the central axis Ax2.

The second gear 332 may have a fixing groove 332d into which the end of the shaft 341 of the driving gear 340 is inserted so that the second gear 332 and the driving gear 340 rotate integrally with each other. In addition, the shaft 341 of the driving gear 340 may be inserted and fixed into the fixing groove 332d of the second gear 332 through the through hole 352b formed in the second case 352 .

On the other hand, an elastic member 334 may be positioned between the first gear 331 and the first case 351 , which is a state in which a failure or failure of the actuator 310 occurs and the actuator 310 does not operate. It is also for applying a force to the cover 100 from the outside so that the cover 100 can be slidably rotated between the first position and the second position.

In the embodiment of the present invention, the case in which the elastic member 334 is positioned between the first gear 331 and the first case 351 is described as an example, but the present invention is not limited thereto, and the elastic member 334 is the first gear 331 . It can be understood that the first gear 331 is positioned between the first gear 331 capable of elastically supporting the first gear 331 movably in the central axis Ax2 direction and the inner surface of the housing 350 . have.

That is, when a force is applied to the cover 100 from the outside in a state in which the actuator 310 does not operate due to a failure or defect of the actuator 310, the first gear 331 does not operate the actuator 310 However, the second gear 332 receives a force applied to the cover 100 from the outside through the driving gear 340, and in this case, the second gear 332 is inserted The cover 100 is rotatable by an external force through a process in which the protrusion 332a is separated from the insertion groove 331b of the first gear 331 and inserted into another adjacent insertion groove.

At this time, the insertion groove 331b of the first gear 331 is a plurality of sidewalls 331e respectively located on both sides of the bottom surface 331d in the rotation direction of the bottom surface 331d and the first gear 331 as shown in FIG. 15 , 331f), and an angle θ formed by each of the plurality of sidewalls 331e and 331f with the bottom surface 331d may be formed to have at least 90 degrees.

When the angle θ between the plurality of sidewalls 331e and 331f formed with the bottom surface 331d is at least 90 degrees, the force applied to the cover 100 from the outside while the first gear 331 is fixed so as not to rotate This is to enable the first gear 331 to move in a direction in which the elastic member 334 is compressed when it is transmitted to the second gear 332 .

That is, when the insertion protrusion 332a of the second gear 332 is inserted into the insertion groove 331b of the first gear 331 and positioned, the insertion groove 331b of the first gear 331 as shown in FIG. 16 ) The opposite surfaces of the insertion protrusions 332a facing the sidewalls 331e and 331f of the The gear 331 receives a force in the direction of compressing the elastic member 334, and in this case, as shown in FIGS. 17 and 18, due to the inclination angle of the sidewalls 331e and 331f, the first gear 331 is the elastic member ( 334 is moved in the compression direction, so that the insertion protrusion 332a of the second gear 332 is moved to another adjacent insertion groove to be positioned.

When the process of FIGS. 17 and 18 described above is repeatedly performed, even in a state in which the actuator 310 does not operate due to a failure or defect of the actuator 310, a force is applied to the cover 100 from the outside to remove the cover 100. It becomes possible to slide and rotate between a 1st position and a 2nd position.

At this time, the dotted line in FIG. 17 above indicates the position before the first gear 331 is moved in the direction in which the elastic member 334 is compressed, and the second gear 332 is positioned in the central axis Ax2 direction. is rotated in a constant state, while the first gear 331 is moved in a direction such that the elastic member 334 is compressed or relaxed in the direction of the central axis Ax1, the rotation of the second gear 332 is possible will be done

Therefore, even in a situation in which the cover 100 does not operate due to a failure or defect of the actuator 310 in a state in which the cover 100 is rotated to the second position for charging the battery, a force is applied to the cover 100 to remove the cover 100 By rotating from the second position to the first position, it is possible to prevent the charging port from being exposed to the outside.

In FIG. 15 described above, the insertion groove 331b of the first gear 331 is described as an example, but the present invention is not limited thereto, and the insertion groove 332b of the second gear 332 is also the first gear 331 and Similarly, the angle between the bottom surface and the plurality of side walls may be formed to be at least 90 degrees or more.

In the embodiment of the present invention, the angle between the bottom surface and the sidewall of each of the insertion groove 331b of the first gear 331 and the insertion groove 332b of the second gear 332 is at least 90 degrees or more. However, this is only an example to aid understanding of the present invention, and is not limited thereto, and the angle between the opposite surfaces of the insertion protrusions inserted into the insertion grooves, that is, the surfaces opposite to the bottom surface and the sidewall of the insertion groove, is at least It may be formed to have 90 degrees or more.

As described above, in the cover opening and closing device 1 for charging a vehicle of the present invention, the space required for opening and closing the cover 100 can be reduced through sliding rotation of the cover 100 , and the sliding of the cover 100 . Since the port housing 400 and the port housing 400 are rotated at a predetermined interval during rotation, it is possible to prevent structural interference from occurring during sliding rotation of the cover 100 .

In addition, even in a situation in which a driving force for sliding rotation of the cover 100 is not generated due to a failure or failure of the driving unit 300, an external force is applied to the cover 100 to rotate the cover 100 by sliding rotation. It is possible to quickly respond to the occurrence of a defect.

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. should be interpreted

100: cover 110: receiving groove
111: connection groove 200: cover guide part
210: lead screw 211: connecting projection
212: coupling groove 220: nut member
221: hollow 230: guide member
231: first guide groove 231a: insertion hole
232: second guide groove 232a, 232b: bulkhead
233: receiving space 234: side wall
240: coupling portion 241: protruding ribs
242: through hole 243: coupling hole
300: driving unit 310: actuator
320: transmission gear 321: shaft
321a: through hole 322: rotating shaft
330: driving force transmission unit 331: first gear
331a: insertion protrusion 331b: insertion groove
331c: hollow 332: second gear
332a: insertion projection 332b: insertion groove
332c: fixing groove 332d: fixing groove
340: drive gear 341: shaft
350: housing 351: first case
351a: through hole 352: second case
352a: engaging projection 352b: through hole

Claims (18)

a cover that slides and rotates on the port housing provided with a charging port for charging the battery; and
and a cover guide part for sliding and rotating the cover at a predetermined distance from the port housing,
The cover guide part,
lead screw;
a nut member screw-coupled to the lead screw and integrally rotated with the lead screw when the cover rotates; and
and a guide member in which a plurality of guide grooves for guiding the movement of the protruding rib provided in any one of the lead screw and the nut member are formed,
The plurality of guide grooves,
a first guide groove formed to extend in the direction of the rotation axis of the cover so that the protruding rib is movable in the direction of the rotation axis of the cover; and
and a second guide groove formed to extend in the rotational direction of the cover to allow the protruding ribs to move in the rotational direction of the cover. The method of claim 1,
The cover is
A cover opening and closing device for charging a vehicle coupled to rotate integrally with any one of the lead screw and the nut member. The method of claim 1,
The second guide groove,
A cover opening and closing device for charging a vehicle that is formed in a position closer to the cover than the first guide groove in the direction of the rotation axis of the cover. The method of claim 1,
The first guide groove,
An insertion hole for insertion or separation of the protruding rib is formed at one end close to the cover,
The second guide groove,
A cover opening and closing device for charging a vehicle in which one end close to the first guide groove is formed to communicate with the insertion hole. The method of claim 1,
Any one of the lead screw and the nut member,
When the protruding rib is located in the first guide groove, when the other one of the lead screw and the nut member is rotated, it is linearly moved in the direction of the rotation axis of the cover to adjust the distance between the port housing and the cover. cover opening and closing device for The method of claim 1,
Any one of the lead screw and the nut member,
When the protruding rib is positioned in the second guide groove, a cover opening and closing device for charging a vehicle that rotates about a rotation axis of the cover when the other one of the lead screw and the nut member rotates so that the cover slides and rotates . The method of claim 1,
The cover is
After being moved away from the port housing by the first guide groove in the first position, it is rotated to the second position by the second guide groove,
A cover opening and closing device for charging a vehicle that is moved from the second position to the first position by the second guide groove to move closer to the port housing by the first guide groove. The method of claim 1,
Further comprising a plurality of partition walls respectively formed near both ends of the second guide groove,
A cover opening and closing device for charging a vehicle in which the protruding rib comes into contact with any one of the plurality of partition walls when the cover is rotated to define a rotation range of the cover. 9. The method of claim 8,
Among the plurality of partition walls, the partition wall is formed at a position close to the first guide groove,
A cover opening and closing device for charging a vehicle that is formed on an opposite side of the second guide groove with respect to the first guide groove so that the protruding rib moving along the second guide groove can be inserted into the first guide groove. The method of claim 1,
Further comprising a driving unit for generating a driving force for sliding rotation of the cover,
The driving unit,
actuator;
a driving gear for transmitting a driving force of the actuator to any one of the lead screw and the nut member; and
A cover opening and closing device for charging a vehicle including a driving force transmitting unit for transmitting the driving force of the actuator to the driving gear. 11. The method of claim 10,
The driving force transmission unit,
a first gear rotated by the driving force of the actuator; and
and a second gear that rotates about the same central axis as the first gear and transmits the driving force transmitted from the first gear to the driving gear. 12. The method of claim 11,
Further comprising a transmission gear rotated about the central axis so as to transmit the driving force of the actuator to the first gear,
The transmission gear is
A cover opening and closing device for charging a vehicle including a shaft having an end inserted into the hollow of the first gear. 13. The method of claim 12,
The shaft of the transmission gear,
A cover opening and closing device for charging a vehicle having a non-circular cross-sectional shape. 12. The method of claim 11,
Each of the first gear and the second gear,
A cover opening and closing device for charging a vehicle in which insertion protrusions and insertion grooves are alternately formed on surfaces facing each other in a circumferential direction about the central axis. 15. The method of claim 14,
In any one of the insertion groove of the first gear and the second gear, the other insertion protrusion is inserted and positioned,
The insertion groove is
bottom; and
A cover opening and closing device for charging a vehicle including a plurality of sidewalls respectively formed on both sides of the bottom in a circumferential direction about the central axis. 16. The method of claim 15,
The angle between the bottom surface and the side wall is,
Cover opening and closing device for charging a vehicle at least 90 degrees or more. 15. The method of claim 14,
The driving force transmission unit,
Further comprising a housing in which the first gear and the second gear are accommodated,
An elastic member for elastically supporting the first gear is positioned between the first gear and an inner surface of the housing so that the first gear is movable in the central axis direction. 18. The method of claim 17,
An external force applied to the cover in a state in which the driving force is not generated is transmitted to the second gear through the driving gear,
When the first gear is moved in a direction in which the elastic member is compressed by an external force transmitted to the second gear, the insertion protrusion of any one of the first gear and the second gear is moved from the insertion groove of the other. A cover opening and closing device for charging a vehicle in which the second gear is rotated and the cover is rotated through a process of being separated and inserted into another adjacent insertion groove.

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