CN107310636B

CN107310636B - Electric automobile charging port assembly and working method thereof

Info

Publication number: CN107310636B
Application number: CN201710372886.6A
Authority: CN
Inventors: 王宇阳; 王汉男
Original assignee: Ningbo Hanpu Plastic Industry Co ltd
Current assignee: Ningbo Hanpu Plastic Industry Co ltd
Priority date: 2017-05-24
Filing date: 2017-05-24
Publication date: 2023-06-06
Anticipated expiration: 2037-05-24
Also published as: CN107310636A

Abstract

The invention relates to the technical field of electric automobile parts, in particular to an electric automobile charging port assembly and a working method thereof, the electric automobile charging port assembly comprises a shell (1) forming a charging cavity (3), a cover plate (2), a lock catch (4) arranged on the cover plate (2) and a push rod (5) matched with the lock catch (4), wherein the shell (1) is provided with a push rod through hole (6), when the push rod (5) is lifted and rotated, the end part of the push rod (5) is separated from the lock catch (4), and the cover plate (2) is lifted by the push rod (5) so as to form an opening (44) between the cover plate (2) and the shell (1); and a driving device (7) for driving the ejector rod (5) to lift and rotate. After adopting this kind of structure, when the apron of this electric automobile charging mouth assembly need be opened, the apron can be by the jack-up in order to form the opening between apron and the casing to make the people facilitate the use and be difficult for destroying the apron.

Description

Electric automobile charging port assembly and working method thereof

Technical Field

The invention relates to the technical field of electric automobile parts, in particular to an electric automobile charging port assembly and a working method thereof.

Background

Under the prevalence of green and environmental protection concepts, electric automobiles have a wide market demand as green transportation vehicles for riding instead of walking. The electric automobile takes a rechargeable battery as a power source, and the rechargeable battery needs to be charged after the electric quantity of the battery is used up.

The rechargeable battery located in the electric vehicle is generally connected to an external charging device through a charging port of the electric vehicle. In the prior art, an electric automobile charging port generally includes a housing forming a charging chamber, a cover plate for closing or opening the charging chamber, one end of the cover plate is hinged to the housing to enable the cover plate to be closed or opened, a lock catch structure is arranged between the cover plate and the housing, and when the cover plate covers the housing, the lock catch structure locks the cover plate to avoid opening during movement. However, when the cover plate needs to be charged and opened, the cover plate needs to be manually scratched, so that the cover plate is opened after being separated from the locking structure, and the following defects are caused: when the buckle structure is designed to be too loose, the cover plate is easy to break away due to the jolt effect when the automobile runs; when the buckle structure is designed to be too tight, the cover plate is manually scratched, so that the cover plate is inconvenient to use, and the cover plate is difficult to grasp and easy to damage due to excessive force.

Disclosure of Invention

The invention aims to solve the technical problem of providing the electric automobile charging port assembly, when the cover plate of the electric automobile charging port assembly needs to be opened, the cover plate can be jacked up to form an opening between the cover plate and the shell, so that the cover plate is convenient to use and is not easy to damage.

In order to solve the technical problems, the electric automobile charging port assembly of the invention comprises

A housing forming a charging chamber,

-a cover plate for closing or opening the charging chamber, one end of the cover plate being hinged to the housing, the cover plate being provided with a catch; the electric automobile charging port assembly further comprises

The shell is provided with a push rod perforation, the push rod passes through the push rod perforation, and the end part of the push rod is clamped with the lock catch to lock the cover plate on the shell in a normal state; when the ejector rod is lifted and rotated, the end part of the ejector rod is separated from the lock catch, and the ejector rod lifts the cover plate so as to form an opening between the cover plate and the shell;

and a driving device for driving the jacking rod to rotate in a jacking mode, wherein the driving device is fixed on the shell and is connected with the jacking rod.

After adopting the structure, compared with the prior art, the invention has the following advantages:

because the lock catch is matched with the ejector rod, the driving device is connected with the ejector rod, when the ejector rod is lifted and rotated, the end part of the ejector rod is separated from the lock catch, and the ejector rod lifts the cover plate so as to form an opening between the cover plate and the shell; after the ejector rod is reset, the end part of the ejector rod is clamped with the lock catch so as to lock the cover plate on the shell. Like this, when the apron needs to be opened, the apron can be by the ejector pin jack-up so that form the opening between apron and the casing, later the apron can be opened from the opening part to the people, has improved the condition that the apron was scratched to the condition of manual work in the apron closure among the prior art to reach the effect that makes the people facilitate the use, avoid the manual work to scratch the apron and be difficult to master the dynamics and easily hard excessively cause the apron to destroy. And under the normal state, the end part of the ejector rod is clamped with the lock catch so as to lock the cover plate on the shell, thus avoiding the cover plate from falling off due to the jolt effect when the automobile runs, and achieving the effects of firm and stable structure.

Preferably, the driving device comprises a first shell, a second shell, an elastic piece and a sliding block; the first shell and the second shell form the working cavity after the joint, slider and first shell sliding connection and be located the working cavity, ejector pin and slider joint are so that the ejector pin moves along the axis direction of ejector pin, and the ejector pin can make the direction of motion of constraint ejector pin with the cooperation of slider for the ejector pin is more stable in the course of the work, thereby guarantees entire system's job stabilization nature. The outer circumferential surface of the ejector rod is provided with the arc slot, the position on the first shell corresponding to the arc slot is provided with the protruding block, the protruding block is clamped into the arc slot so that the ejector rod can rotate in the axial direction, the structure of the protruding block clamped into the arc slot can realize the function of separating the end part of the ejector rod from the lock catch and jacking the cover plate by the ejector rod so as to form an opening between the cover plate and the shell after the ejector rod is jacked and rotated, and the structure is simple and stable, easy to process and good in circulating effect. The elastic piece is sleeved at one end of the ejector rod far away from the cover plate, one end of the elastic piece is abutted against the inner surface of the second shell, the other end of the elastic piece is sleeved with the sliding block in a clamping mode, and the elastic piece is used for providing power for the ejector rod to move along the axis direction. And a locking mechanism for locking the ejector rod to prevent the ejector rod from moving is also arranged in the working cavity. When the locking mechanism locks the ejector rod, the movement of the ejector rod is avoided, the top of the ejector rod can be firmly clamped with the lock catch, the cover plate can be further prevented from being separated under the jolt action when the automobile runs, and the effect of firmer and stable structure is achieved.

Preferably, the driving device further comprises a push rod fixing block, the push rod fixing block is fixed in the working cavity, the push rod fixing block is provided with a clamping ring and a clamping hoop which are clamped on the outer circumferential surface of the push rod and used for supporting the push rod, the clamping ring and the clamping hoop have supporting action on the push rod, the movement direction of the push rod can be further limited, the movement track of the push rod is unique, and therefore the problem of dislocation blocking is avoided, and the working stability is further guaranteed. One end of the clamping ring is provided with an axial extension part, the axial extension part is clamped into the ejector rod perforation to position the clamping ring, and the other end of the clamping ring is tightly attached to the first shell. Like this, play the effect of transition when installing drive arrangement on the casing, guarantee that the ejector pin passes the ejector pin perforation and set up the same with the fenestrate axis of ejector pin when guaranteeing that the ejector pin does not take place to contact with other parts when jacking rotation during operation, avoid receiving the influence of other parts.

Preferably, the sliding block is slidably connected with the first shell and located in the working cavity, that is, a sliding groove is formed in the first shell and along the axial direction of the ejector rod, and the sliding block is slidably connected with the sliding groove. Therefore, the interaction of the sliding block and the sliding groove can ensure that the movement direction of the ejector rod is the axis direction when the ejector rod moves, and the unique movement track is ensured.

Preferably, the locking mechanism comprises a locking block, a limit pin is arranged on the locking block, a radial limit hole is formed in the ejector rod, the locking mechanism further comprises a power mechanism for driving the locking block to be far away from or close to the ejector rod, when the power mechanism drives the locking block to be close to the ejector rod so that the limit pin is inserted into the limit hole, the locking block locks the ejector rod to avoid the movement of the ejector rod, and when the power mechanism drives the locking block to be far away from the ejector rod so that the limit pin is separated from the limit hole, the ejector rod performs jacking rotation under the action of the elastic piece.

Preferably, the power mechanism comprises a motor and a worm, the driving end of the motor is connected with the worm, a spiral groove through hole matched with the worm is formed in the middle of the locking block, the axis of the spiral groove through hole is parallel to the axis of the limit pin, the worm is inserted into the spiral groove through hole, and a guide structure forcing the locking block to move along the axis direction of the worm is arranged between the locking block and the first shell and between the locking block and the second shell. The motor is connected with the control system of the electric automobile and is controlled by the control system, when the motor rotates to drive the locking block to be far away from the ejector rod so that the limiting pin is separated from the limiting hole, the ejector rod performs jacking and rotating movement under the action of the elastic piece, and the function of automatically opening the cover plate is achieved.

Preferably, the guide structure comprises a guide block arranged at one end of the locking block, which faces the first shell, a guide plate arranged at one end of the locking block, which faces the second shell, a guide groove arranged on the inner surface of the bottom of the first shell and along the axial direction of the worm, and a guide convex rib arranged on the inner surface of the bottom of the second shell; the guide block joint is in the guide way, and deflector and direction protruding muscle all set up along the axis direction of worm, deflector and direction protruding muscle joint and the deflector are located the outside of direction protruding muscle. Therefore, the motion trail of the locking block can be unique, the motion reliability of the locking block is ensured, the locking phenomenon is avoided, the structures of the locking block, the first shell and the second shell are effectively utilized, and the guiding effect is achieved while other parts are not added.

As a further improvement, the locking block is provided with a deflector rod, the bottom of the second housing is provided with a yielding hole at the corresponding position of the deflector rod, one end of the deflector rod penetrates through the yielding hole, the width of the yielding hole along the axis direction of the worm is larger than the length of the limit pin, and the yielding hole is detachably connected with an end cover for shielding the end part of the deflector rod and the yielding hole. Therefore, when the power supply of the motor is cut off, that is to say, even if the charging port assembly of the electric automobile is damaged, the deflector rod can be manually stirred to enable the locking block to move towards the direction close to the ejector rod, so that the limiting pin is inserted into the limiting hole to enable the ejector rod to lock and prevent the ejector rod from moving, and the cover plate is prevented from being opened in the running process of the automobile.

Preferably, the lock catch comprises a lock catch body, a rectangular locking port is arranged on the lock catch body, the top of the ejector rod is cuboid, a limiting block which is adaptive to the rectangular locking port structure is radially arranged along the top of the ejector rod in a protruding mode, and the limiting block can be clamped in or separated from the rectangular locking port after rotating along with the ejector rod; the side surface of the lock catch body is provided with a guide block, and a guide protrusion matched with the guide block is arranged on the shell and positioned in the charging chamber; when the cover plate is in the process of opening to closing, the guide block is matched with the guide protrusion so as to position the rectangular locking opening and the top of the ejector rod. Because the guide block is matched with the guide protrusion, the rectangular locking notch can be accurately matched with the top of the ejector rod when the cover plate is closed, so that even if the electric automobile charging port assembly is used for a certain time, the hinge joint of the cover plate and the shell is loosened due to external factors, and the normal work of the cover plate in the opening or closing process can be ensured.

Preferably, the cover plate comprises an outer decorative plate and an inner plate; one end of the inner plate is hinged with the shell; the inner side surface of the outer decorative plate is convexly provided with a clamping block and a plurality of limiting convex plates, and one side of the inner plate facing the outer decorative plate is provided with a plurality of L-shaped plates matched with the limiting convex plates and an elastic buckle plate clamped with the clamping block; the limiting convex plate is clamped with the L-shaped plate, and the clamping block is clamped with the elastic buckle plate to prevent the outer decorative plate from separating from the inner plate; because the processing modes of the outer decorative plate and the inner plate in the automobile part are different, the outer decorative plate and the inner plate can be conveniently assembled together, and the outer decorative plate and the inner plate are stable after being assembled. Limiting protruding blocks are arranged on two side faces, close to the hinge ends, of the inner plate. Like this, the effect of spacing lug lies in, after opening the apron, and spacing lug is spacing with the inside wall of casing, avoids the opening angle of apron too big and makes outer plaque and car surface collision.

Another object of the present invention is to provide a working method of the charging port assembly of the electric vehicle, which includes: when the cover plate needs to be opened, the motor rotates along the first direction to drive the worm to rotate, the worm rotates to enable the locking block to move in the direction away from the ejector rod so as to enable the limiting pin to be separated from the limiting hole, the ejector rod moves along the axial direction of the ejector rod under the action of the elastic piece, the ejector rod moves in the axial direction while rotating under the interaction of the arc groove and the convex block, the limiting block breaks away from the rectangular locking port after rotating along with the ejector rod, and the top end of the ejector rod jacks up the cover plate so as to enable an opening to be formed between the cover plate and the shell;

when the cover plate needs to be closed, the cover plate presses down the ejector rod, the ejector rod makes the ejector rod perform rotary motion while pressing down under the interaction of the arc groove and the convex blocks, the limiting block is clamped in the rectangular locking opening to lock the cover plate after rotating along with the ejector rod, the motor rotates along the second direction to drive the worm to rotate, the worm rotates to enable the locking block to move towards the direction close to the ejector rod, and therefore the limiting pin is inserted into the limiting hole to enable the ejector rod to be locked, and the ejector rod is prevented from moving;

when the power supply of the motor is cut off, the shift lever is manually shifted to enable the locking block to move towards the direction close to the ejector rod, so that the limiting pin is inserted into the limiting hole to enable the ejector rod to lock and prevent the ejector rod from moving.

Drawings

Fig. 1 is a schematic side view of a charging port assembly for an electric vehicle according to the present invention.

Fig. 2 is a schematic structural view of the charging port assembly of the electric vehicle of the present invention.

Fig. 3 is a schematic structural view of the electric vehicle charging port assembly of the present invention after hiding the housing.

Fig. 4 is a schematic diagram of a split structure of a driving device in the charging port assembly of the electric vehicle.

Fig. 5 is a schematic structural view of a jack in the charging port assembly of the electric vehicle of the present invention.

Fig. 6 is a schematic structural view of a locking mechanism in the charging port assembly of the electric vehicle according to the present invention.

Fig. 7 is a schematic structural view of a first housing in the charging port assembly of the electric vehicle according to the present invention.

Fig. 8 is a schematic cross-sectional view of a driving device in the charging port assembly of the electric vehicle of the present invention.

Fig. 9 is a schematic structural view of an external decorative plate in the charging port assembly of the electric vehicle.

Fig. 10 is a schematic structural view of an inner plate of the charging port assembly of the electric vehicle according to the present invention.

Wherein:

1. a housing; 2. a cover plate; 3. a charging chamber; 4. locking; 5. a push rod; 6. perforating the ejector rod; 7. a driving device; 8. an elastic member; 9. a slide block; 10. a working chamber; 11. a first housing; 12. a second housing; 13. an arc slot; 14. a bump; 15. a clasp; 16. a clamp; 17. an axial extension; 18. a chute; 19. a locking block; 20. limit pins; 21. a limiting hole; 22. a motor; 23. a worm; 24. a spiral groove through hole; 25. a guide block; 26. a guide plate; 27. a guide groove; 28. guiding the convex ribs; 29. a deflector rod; 30. a relief hole; 31. an end cap; 32. a latch body; 33. a rectangular locking port; 34. a limiting block; 35. a guide block; 36. a guide protrusion; 37. an outer plaque; 38. an inner plate; 39. a limiting convex plate; 40. a clamping block; 41. an L-shaped plate; 42. an elastic buckle plate; 43. a limit bump; 44. an opening; 45. and the ejector rod fixing block.

Detailed Description

The invention is described in further detail below with reference to the drawings and detailed description.

The inventive concepts of the present disclosure will be described below using terms commonly used by those skilled in the art to convey the substance of their work to others skilled in the art. These inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of their inclusion to those skilled in the art. It should also be noted that these embodiments are not mutually exclusive. A component, step or element from one embodiment may be conceived that may be present or utilized in another embodiment. The particular embodiments shown and described may be replaced with a wide variety of alternative and/or equivalent implementations without departing from the scope of the embodiments of the present disclosure. This application is intended to cover any adaptations or variations of the embodiments discussed herein. It will be apparent to those skilled in the art that alternative embodiments may be practiced using only some of the described aspects. Specific numbers, materials, and configurations are described herein in the embodiments for purposes of illustration, however, alternative embodiments may be practiced by one skilled in the art without these specific details. In other instances, well-known features may be omitted or simplified in order not to obscure the illustrative embodiments.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "provided with," "mounted to," "connected to," and "connected to" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 10, in one embodiment, an electric vehicle charging port assembly includes

A housing 1 forming a charging chamber 3,

a cover plate 2 for closing or opening the charging chamber 3, one end of the cover plate 2 is hinged with the shell 1, and a lock catch 4 is arranged on the cover plate 2; sealing strips are arranged between the cover plate 2 and the shell 1 for preventing water, and the electric automobile charging port assembly further comprises

A push rod 5 matched with the lock catch 4, wherein the shell 1 is provided with a push rod perforation 6, the push rod 5 passes through the push rod perforation 6, and the end part of the push rod 5 is clamped with the lock catch 4 in a normal state so as to lock the cover plate 2 on the shell 1; when the ejector rod 5 is lifted and rotated, the end part of the ejector rod 5 is separated from the lock catch 4, and the ejector rod 5 lifts the cover plate 2 so as to form an opening 44 between the cover plate 2 and the shell 1;

and a driving device 7 for driving the ejector rod 5 to lift and rotate, wherein the driving device 7 is fixed on the shell 1, and the driving device 7 is connected with the ejector rod 5.

Because the lock catch 4 is matched with the ejector rod 5, the driving device 7 is connected with the ejector rod 5, when the ejector rod 5 is lifted and rotated, the end part of the ejector rod 5 is separated from the lock catch 4, and the ejector rod 5 lifts the cover plate 2 to form an opening 44 between the cover plate 2 and the shell 1; after the ejector rod 5 is reset, the end part of the ejector rod 5 is clamped with the lock catch 4 so as to lock the cover plate 2 on the shell 1. Like this, when the apron needs to be opened, the apron can be by ejector pin 5 jack-up so that form the opening between apron and the casing, later the apron can be opened from the opening part to the people, has improved the condition that the apron was scratched to the condition of manual work in the apron closure among the prior art to reach the effect that makes the people facilitate the use, avoid the manual work to scratch the apron and be difficult to master the dynamics and easily hard excessively cause the apron to destroy. And in the normal state, the end part of the ejector rod 5 is clamped with the lock catch 4 so as to lock the cover plate 2 on the shell 1, thus avoiding the cover plate from falling off due to the jolt effect when the automobile runs, and achieving the effects of firm and stable structure.

Preferably, the driving device 7 comprises a first housing 11, a second housing 12, an elastic member 8, and a slider 9; the working cavity 10 is formed after the first shell 11 and the second shell 12 are clamped, the sliding block 9 is slidably connected with the first shell 11 and is positioned in the working cavity 10, the ejector rod 5 is clamped with the sliding block 9 so that the ejector rod 5 moves along the axial direction of the ejector rod 5, the ejector rod 5 and the sliding block 9 are matched to restrict the movement direction of the ejector rod 5, the ejector rod 5 is enabled to be more stable in the working process, and therefore the working stability of the whole system is guaranteed.

The outer circumference of the ejector rod 5 is provided with an arc groove 13, a lug 14 is arranged on the first shell 11 and at a position corresponding to the arc groove 13, the lug 14 is clamped into the arc groove 13 to enable the ejector rod 5 to perform rotary motion when moving in the axial direction, and specifically, the arc groove 13 comprises two axially arranged straight line grooves which are communicated through a curved arc groove. The structure of the lug 14 clamped into the arc slot 13 can realize the function that the end part of the ejector rod 5 is separated from the lock catch 4 and the ejector rod 5 jacks the cover plate 2 to form an opening 44 between the cover plate 2 and the shell 1 after the ejector rod 5 is jacked and rotated, and the structure is simple and stable, is easy to process and has good circulating effect.

The elastic piece 8 is sleeved at one end of the ejector rod 5 far away from the cover plate 2, one end of the elastic piece 8 is abutted against the inner surface of the second housing 12, the other end of the elastic piece 8 is sleeved with the sliding block 9 in a clamping manner, and the elastic piece 8 has the function of providing power for the ejector rod 5 to move along the axial direction.

A locking mechanism for locking the ejector rod 5 to prevent the ejector rod 5 from moving is also arranged in the working cavity 10. When the locking mechanism locks the ejector rod 5, the movement of the ejector rod 5 is avoided, the top of the ejector rod 5 can be firmly clamped with the lock catch 4, the cover plate can be further prevented from being separated due to the bumping effect when the automobile runs, and the effect of firmer and stable structure is achieved.

Preferably, the driving device 7 further includes a ram fixing block 45, the ram fixing block 45 is fixed in the working cavity 10, the ram fixing block 45 is provided with a clamping ring 15 and a clamping band 16 which are clamped on the outer circumferential surface of the ram 5 and used for supporting the ram 5, the clamping ring 15 and the clamping band 16 have supporting effects on the ram 5, and can further limit the movement direction of the ram 5, so that the movement track of the ram 5 is unique, and therefore, the problem of dislocation clamping is avoided, and the working stability is further ensured.

One end of the clamping ring 15 is provided with an axial extension part 17, the axial extension part 17 is clamped into the ejector rod perforation 6 to position the clamping ring 15, and the other end of the clamping ring 15 is tightly attached to the first shell 11. Like this, play the transitional effect when installing drive arrangement 7 on casing 1, guarantee that ejector pin 5 passes ejector pin perforation 6 and guarantee that ejector pin 5 is the same with ejector pin perforation 6's axis when setting up to guarantee that ejector pin 5 does not take place to contact with other parts when jacking rotation work, avoid receiving the influence of other parts.

Preferably, the sliding block 9 is slidably connected with the first housing 11 and located in the working chamber 10, which means that a sliding groove 18 is disposed on the first housing 11 along the axial direction of the ejector rod 5, and the sliding block 9 is slidably connected with the sliding groove 18. In this way, the interaction of the sliding block 9 and the sliding groove 18 can ensure that the movement direction of the ejector rod 5 is the axial direction during movement, and the movement track is unique.

Preferably, the locking mechanism comprises a locking block 19, a limiting pin 20 is arranged on the locking block 19, a radially arranged limiting hole 21 is formed in the ejector rod 5, the locking mechanism further comprises a power mechanism for driving the locking block 19 to be far away from or close to the ejector rod 5, when the power mechanism drives the locking block 19 to be close to the ejector rod 5 so that the limiting pin 20 is inserted into the limiting hole 21, the locking block 19 locks the ejector rod 5 to avoid the movement of the ejector rod 5, and when the power mechanism drives the locking block 19 to be far away from the ejector rod 5 so that the limiting pin 20 is separated from the limiting hole 21, the ejector rod 5 performs jacking and rotating movement under the action of the elastic piece 8.

Preferably, the power mechanism comprises a motor 22 and a worm 23, the driving end of the motor 22 is connected with the worm 23, a spiral groove through hole 24 matched with the worm 23 is formed in the middle of the locking block 19, the axis of the spiral groove through hole 24 is parallel to the axis of the limit pin 20, the worm 23 is inserted into the spiral groove through hole 24, and a guide structure forcing the locking block 19 to move along the axis direction of the worm 23 is arranged between the locking block 19 and the first shell 11 and the second shell 12. The motor 22 is connected with a control system of the electric automobile and is controlled by the control system, when the motor 22 rotates to drive the locking block 19 to be far away from the ejector rod 5 so that the limiting pin 20 is separated from the limiting hole 21, the ejector rod 5 performs jacking and rotating movement under the action of the elastic piece 8, and the function of automatically opening the cover plate 2 is realized.

Preferably, the guiding structure comprises a guiding block 25 arranged at one end of the locking block 19 facing the first housing 11, a guiding plate 26 arranged at one end of the locking block 19 facing the second housing 12, a guiding groove 27 arranged on the inner surface of the bottom of the first housing 11 and arranged along the axial direction of the worm 23, and a guiding rib 28 arranged on the inner surface of the bottom of the second housing 12; the guide block 25 is clamped in the guide groove 27, the guide plate 26 and the guide convex rib 28 are arranged along the axial direction of the worm 23, the guide plate 26 and the guide convex rib 28 are clamped, and the guide plate 26 is positioned on the outer side of the guide convex rib 28. In this way, the motion track of the locking block 19 can be unique, the motion reliability of the locking block 19 is ensured, the locking phenomenon is avoided, the structures of the locking block 19, the first shell 11 and the second shell 12 are effectively utilized, and the guiding effect is achieved without adding other parts.

As a further improvement, the locking block 19 is provided with a shift lever 29, a position of the second housing 12 corresponding to the shift lever 29 is provided with a relief hole 30, one end of the shift lever 29 passes through the relief hole 30, the width of the relief hole 30 along the axial direction of the worm 23 is greater than the length of the limit pin 20, and an end cover 31 for shielding the end of the shift lever 29 and the relief hole 30 is detachably connected to the relief hole 30. Therefore, when the power supply of the motor 22 is cut off, that is to say, even if the charging port assembly of the electric automobile is damaged, the deflector rod 29 can be manually pulled to enable the locking block 19 to move towards the direction close to the ejector rod 5, so that the limiting pin 20 is inserted into the limiting hole 21 to enable the ejector rod 5 to lock and prevent the ejector rod 5 from moving, and the cover plate is prevented from being opened in the running process of the automobile.

Preferably, the lock catch 4 includes a lock catch body 32, a rectangular locking notch 33 is provided on the lock catch body 32, the top of the ejector rod 5 is rectangular, a limiting block 34 adapted to the structure of the rectangular locking notch 33 is radially protruding along the top of the ejector rod 5, and the limiting block 34 can be clamped in the rectangular locking notch 33 or separated from the rectangular locking notch 33 after rotating along with the ejector rod; the side surface of the lock catch body 32 is provided with a guide block 35, and a guide protrusion 36 matched with the guide block 35 is arranged on the shell 1 and positioned in the charging chamber 3; the guide block 35 cooperates with the guide projection 36 to position the rectangular locking notch 33 with the top of the jack 5 when the cover plate 2 is closed from the open state. Because the guide block 35 is matched with the guide protrusion 36, the rectangular locking notch 33 can be accurately matched with the top of the ejector rod 5 when the cover plate is closed, so that even if the electric automobile charging port assembly is used for a certain time, the hinge joint of the cover plate 2 and the shell 1 is loosened due to external factors, and the normal operation of the cover plate 2 in the opening or closing process can be ensured.

Preferably, the cover plate 2 comprises an outer trim panel 37 and an inner panel 38; one end of the inner plate 38 is hinged with the shell 1; the inner side surface of the outer decoration plate 37 is convexly provided with a clamping block 40 and a plurality of limiting convex plates 39, and one side of the inner plate 38 facing the outer decoration plate 37 is provided with a plurality of L-shaped plates 41 matched with the limiting convex plates 39 and an elastic buckle plate 42 clamped with the clamping block 40; the limiting convex plate 39 is clamped with the L-shaped plate 41, and the clamping block 40 is clamped with the elastic buckle plate 42 so as to prevent the outer ornamental plate 37 from being separated from the inner plate 38; because the outer trim 37 and the inner panel 38 are processed differently in the automobile parts, the outer trim 37 and the inner panel 38 can be conveniently assembled together, and the outer trim 37 and the inner panel 38 are stable after being assembled.

Limiting lugs 43 are arranged on two sides of the inner plate 38, which are close to the hinged end. Thus, the limiting bump 43 has the effect that after the cover plate is opened, the limiting bump 43 is limited to the inner side wall of the housing 1, so that the outer decorative plate 37 is prevented from colliding with the outer surface of the automobile due to the overlarge opening angle of the cover plate 2.

Another object of the present invention is to provide a working method of the charging port assembly of the electric vehicle, which includes:

when the cover plate 2 needs to be opened, the motor 22 rotates along the first direction to drive the worm 23 to rotate, the worm 23 rotates to enable the locking block 19 to move in the direction away from the ejector rod 5 so as to enable the limiting pin 20 to be separated from the limiting hole 21, the ejector rod 5 moves along the axial direction of the ejector rod 5 under the action of the elastic piece 8, the ejector rod 5 moves along the axial direction under the interaction of the arc groove 13 and the convex block 14 and simultaneously rotates, the limiting block 34 rotates along with the ejector rod 5 and then breaks away from the rectangular locking opening 33, and the top end of the ejector rod 5 jacks up the cover plate 2 so as to enable an opening 44 to be formed between the cover plate 2 and the shell 1;

when the cover plate 2 needs to be closed, the cover plate 2 presses down the ejector rod 5, the ejector rod 5 makes the ejector rod 5 perform rotary motion while pressing down and moving under the interaction of the arc groove 13 and the convex block 14, the limiting block 34 is clamped in the rectangular locking opening 33 after rotating along with the ejector rod to lock the cover plate 2, the motor 22 rotates along the second direction to drive the worm 23 to rotate, the worm 23 rotates to enable the locking block 19 to move towards the direction close to the ejector rod 5, and therefore the limiting pin 20 is inserted into the limiting hole 21 to enable the ejector rod 5 to be locked to avoid the movement of the ejector rod 5;

when the power supply of the motor 22 is cut off, the shift lever 29 is manually shifted to enable the locking block 19 to move towards the direction approaching to the ejector rod 5, so that the limiting pin 20 is inserted into the limiting hole 21 to enable the ejector rod 5 to be locked, and the ejector rod 5 is prevented from moving.

The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the claims, and other corresponding modifications, which would be apparent to those skilled in the art using the technical solutions and concepts of the present invention, are intended to fall within the scope of the claims.

Claims

1. The working method of the electric automobile charging port assembly is characterized by comprising the following steps of:

when the cover plate (2) needs to be opened, the motor (22) rotates along the first direction to drive the worm (23) to rotate, the worm (23) rotates to enable the locking block (19) to move away from the ejector rod (5) so as to enable the limiting pin (20) to be separated from the limiting hole (21), the ejector rod (5) moves along the axial direction of the ejector rod (5) under the action of the elastic piece (8), the ejector rod (5) enables the ejector rod (5) to move in the axial direction under the interaction of the arc groove (13) and the convex block (14) and simultaneously rotate, the limiting block (34) is separated from the rectangular locking port (33) after rotating along with the ejector rod (5), and the top end of the ejector rod (5) jacks up the cover plate (2) so as to enable an opening (44) to be formed between the cover plate (2) and the shell (1);

when the cover plate (2) needs to be closed, the cover plate (2) presses down the ejector rod (5), the ejector rod (5) makes the ejector rod (5) perform rotary motion while pressing down and moving under the interaction of the arc groove (13) and the convex block (14), the limiting block (34) is clamped in the rectangular locking opening (33) after rotating along with the ejector rod to lock the cover plate (2), the motor (22) rotates along the second direction to drive the worm (23) to rotate, the worm (23) rotates to enable the locking block (19) to move towards the direction close to the ejector rod (5), and therefore the limiting pin (20) is inserted into the limiting hole (21) to enable the ejector rod (5) to be locked, and the ejector rod (5) is prevented from moving;

when the power supply of the motor (22) is cut off, the shift lever (29) is manually shifted to enable the locking block (19) to move towards the direction close to the ejector rod (5), so that the limiting pin (20) is inserted into the limiting hole (21) to enable the ejector rod (5) to be locked, and the ejector rod (5) is prevented from moving.

2. The electric vehicle charging port assembly of claim 1, wherein the method comprises:

a housing (1) forming a charging chamber (3);

the cover plate (2) is used for closing or opening the charging chamber (3), one end of the cover plate (2) is hinged with the shell (1), and a lock catch (4) is arranged on the cover plate (2);

the ejector rod (5) is matched with the lock catch (4), the shell (1) is provided with an ejector rod perforation (6), the ejector rod (5) passes through the ejector rod perforation (6) to be arranged, and in a normal state, the end part of the ejector rod (5) is clamped with the lock catch (4) so as to lock the cover plate (2) on the shell (1); after the ejector rod (5) is lifted and rotated, the end part of the ejector rod (5) is separated from the lock catch (4), and the ejector rod (5) lifts the cover plate (2) so as to form an opening (44) between the cover plate (2) and the shell (1);

and a driving device (7) for driving the ejector rod (5) to lift and rotate, wherein the driving device (7) is fixed on the shell (1), and the driving device (7) is connected with the ejector rod (5).

3. The electric vehicle charging port assembly according to claim 2, wherein: the driving device (7) comprises a first shell (11), a second shell (12), an elastic piece (8) and a sliding block (9); the first shell (11) and the second shell (12) are clamped to form a working cavity (10), the sliding block (9) is slidably connected with the first shell (11) and is positioned in the working cavity (10), the ejector rod (5) is clamped with the sliding block (9) so that the ejector rod (5) moves along the axial direction of the ejector rod (5), an arc slot (13) is formed in the outer circumferential surface of the ejector rod (5), a lug (14) is arranged on the first shell (11) and at a position corresponding to the arc slot (13), and the lug (14) is clamped into the arc slot (13) so that the ejector rod (5) rotates when moving along the axial direction; the elastic piece (8) is sleeved at one end of the ejector rod (5) away from the cover plate (2), one end of the elastic piece (8) is abutted against the inner surface of the second housing (12), the other end of the elastic piece (8) is sleeved with the sliding block (9) in a clamping mode, and a locking mechanism for locking the ejector rod (5) to avoid movement of the ejector rod (5) is further arranged in the working cavity (10).

4. The electric vehicle charging port assembly according to claim 3, wherein: the driving device (7) further comprises a push rod fixing block (45), the push rod fixing block (45) is fixed in the working cavity (10), the push rod fixing block (45) is provided with a clamping ring (15) and a clamping hoop (16) which are clamped on the outer circumferential surface of the push rod (5) and used for supporting the push rod (5), one end of the clamping ring (15) is provided with an axial extension part (17), the axial extension part (17) is clamped into the push rod perforation (6) to position the clamping ring (15), and the other end of the clamping ring (15) is tightly attached to the first shell (11).

5. The electric vehicle charging port assembly according to claim 3, wherein: the sliding block (9) is slidably connected with the first shell (11) and is located in the working cavity (10), namely, a sliding groove (18) is formed in the first shell (11) along the axis direction of the ejector rod (5), and the sliding block (9) is slidably connected with the sliding groove (18).

6. The electric vehicle charging port assembly according to claim 3, wherein: the locking mechanism comprises a locking block (19), a limiting pin (20) is arranged on the locking block (19), a radially arranged limiting hole (21) is formed in the ejector rod (5), the locking mechanism further comprises a power mechanism for driving the locking block (19) to be away from or close to the ejector rod (5), when the power mechanism drives the locking block (19) to be close to the ejector rod (5) so that the limiting pin (20) is inserted into the limiting hole (21), the locking block (19) locks the ejector rod (5) to prevent the ejector rod (5) from moving, and when the power mechanism drives the locking block (19) to be away from the ejector rod (5) so that the limiting pin (20) is separated from the limiting hole (21), the ejector rod (5) performs jacking rotation under the action of an elastic piece (8).

7. The electric vehicle charging port assembly according to claim 6, wherein: the power mechanism comprises a motor (22) and a worm (23), the driving end of the motor (22) is connected with the worm (23), a spiral groove through hole (24) matched with the worm (23) is formed in the middle of the locking block (19), the axis of the spiral groove through hole (24) is parallel to the axis of the limit pin (20), the worm (23) is inserted into the spiral groove through hole (24), and a guide structure forcing the locking block (19) to move along the axis direction of the worm (23) is arranged between the locking block (19) and the first shell (11) and between the locking block and the second shell (12).

8. The electric vehicle charging port assembly of claim 7, wherein: the guide structure comprises a guide block (25) arranged at one end of the locking block (19) facing the first shell (11), a guide plate (26) arranged at one end of the locking block (19) facing the second shell (12), a guide groove (27) arranged on the inner surface of the bottom of the first shell (11) and arranged along the axis direction of the worm (23), and a guide convex rib (28) arranged on the inner surface of the bottom of the second shell (12); the guide block (25) is clamped in the guide groove (27), the guide plate (26) and the guide convex rib (28) are arranged along the axis direction of the worm (23), the guide plate (26) is clamped with the guide convex rib (28) and the guide plate (26) is positioned on the outer side of the guide convex rib (28).

9. The electric vehicle charging port assembly according to claim 6, wherein: be equipped with driving lever (29) on latch segment (19), second shell (12) bottom just be in driving lever (29) corresponding position department is equipped with hole (30) of stepping down, and the one end of driving lever (29) is passed hole (30) of stepping down, and the width of hole (30) of stepping down along the axis direction of worm (23) is greater than the length of spacing pin (20), and hole (30) department of stepping down is detachably connected with end cover (31) that are used for shielding driving lever (29) tip and hole (30) of stepping down.

10. The electric vehicle charging port assembly according to claim 2, wherein: the lock catch (4) comprises a lock catch body (32), a rectangular locking port (33) is arranged on the lock catch body (32), the top of the ejector rod (5) is cuboid, a limiting block (34) which is adaptive to the structure of the rectangular locking port (33) is radially protruded along the top of the ejector rod (5), and the limiting block (34) can be clamped in the rectangular locking port (33) or separated from the rectangular locking port (33) after rotating along with the ejector rod; the side surface of the lock catch body (32) is provided with a guide block (35), and a guide protrusion (36) matched with the guide block (35) is arranged on the shell (1) and positioned in the charging cavity (3); when the cover plate (2) is closed from an open state, the guide block (35) is matched with the guide projection (36) to position the rectangular locking opening (33) and the top of the ejector rod (5).