Electric charging small door

By using a drive unit to move an L-shaped swing arm and utilizing the limiting cavity at the bottom of the charging port for positioning, combined with an electric actuator, the problems of complex structure, high cost, and large space occupation of the electric charging door are solved, thus achieving a compact and stable charging door design.

CN223990069UActive Publication Date: 2026-03-13ZHEJIANG HONGMI PLASTIC TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing electric charging gates have complex structures, high costs, and large space requirements. They are also prone to scratching other vehicles and have loose locking mechanisms.

Method used

The L-shaped swing arm is driven by a drive unit, and the swing arm is limited by the lower limiting cavity of the opening box. Combined with the electric actuator drive, the additional locking mechanism is eliminated, and the smooth opening and closing of the cover is achieved by using the movable connection structure.

Benefits of technology

It achieves a compact structure, high stability, and good sealing performance, avoiding additional locking structures, reducing space occupation, and lowering costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223990069U_ABST
    Figure CN223990069U_ABST
Patent Text Reader

Abstract

The utility model provides an electric charging small door, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The small electric charging door comprises an opening box with a cavity inside and an opening at one end, the bottom of the opening box is provided with a through hole for a charging head to insert, the small electric charging door further comprises a driving part, a cover plate and a swing arm, the driving part is fixedly connected to the opening box, the inner end of the swing arm is connected with the driving part, and the outer end of the swing arm is hinged to the middle of the cover plate. A movable connecting structure is arranged between the upper part of the cover plate and the mouth box; and when the driving piece drives the swing arm to swing, the upper end of the cover plate can swing and move along the port of the mouth box. The small electric charging door is high in stability.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to an electric charging small door. Background Technology

[0002] A "charging hatch" refers to a small access panel on electric or hybrid vehicles used to connect the charging cable; it is also called a charging port cover or charging access panel. This design primarily aims to protect the charging port from external environmental factors (such as water and dust) and improve the overall aesthetics of the vehicle.

[0003] As can be seen, the charging port has the following functions:

[0004] 1. Protective function: Prevents rainwater, dust and other contaminants from entering the charging interface, ensuring the safety and reliability of the charging process.

[0005] 2. Aesthetics: As part of the vehicle body, the design of the charging door usually matches the overall style of the vehicle, maintaining consistency and aesthetics in appearance.

[0006] The existing conventional electric charging gate has a gooseneck structure, which takes up a lot of space when opened and is prone to scratching other vehicles.

[0007] Furthermore, to ensure the opening and closing degree of the cover in the charging door, an additional locking structure is installed inside the charging door to limit the opening and closing degree. It can be seen that although the locking structure effectively restricts the opening and closing of the cover, its structure is too complex and also leads to excessive cost and a non-compact structure for the entire charging door.

[0008] Chinese Patent Publication No. CN 112193334 A discloses a car charging door, including a base and a cover. A charging seat is fixedly mounted on the base, and the cover is movably mounted on the base for opening and closing the charging seat. A protective cover box is fixedly mounted inside the cover, and an elastic membrane is sealed on the top of the protective cover box. A deformation bladder is disposed between the base and the cover, and the protective cover box communicates with the deformation bladder. Both the protective cover box and the deformation bladder are filled with a fluid medium. When the cover is closed, the protective cover box is adapted to cover the charging seat, and the deformation bladder is adapted to be compressed and contracted by the cover and the base, causing the fluid medium in the deformation bladder to enter the protective cover box, forcing the elastic membrane to deform towards the charging seat and abut against and cover the charging seat.

[0009] It can be seen that the charging door of the above patent relies on the deformation bladder to control the opening and closing degree of the cover. The deformation bladder is also an additional structure. It still has the problems of complex structure and high cost of the entire door. Summary of the Invention

[0010] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a compact and highly stable electric charging door.

[0011] The objective of this utility model can be achieved through the following technical solutions:

[0012] An electric charging door includes a housing with an internal cavity and an open end. The bottom of the housing has a through hole for inserting a charging head. The door is characterized by further including a driving component, a cover plate, and a swing arm. The driving component is fixedly connected to the housing. The inner end of the swing arm is connected to the driving component. The outer end of the swing arm is hinged to the middle of the cover plate. The upper part of the cover plate has a movable connection structure with the housing. When the driving component drives the swing arm to swing, the upper part of the cover plate can swing and move along the opening of the housing.

[0013] In the aforementioned electric charging door, the swing arm is plate-shaped and its cross-section is L-shaped.

[0014] In the aforementioned electric charging door, the driving component is an electric actuator that can drive the swing arm to swing around its lower end.

[0015] In the aforementioned electric charging door, the movable connection structure includes a long guide groove at the opening of the box and a connecting rod fixed to the side of the cover plate, with the connecting rod embedded in the guide groove.

[0016] In the aforementioned electric charging door, the connecting rod includes a straight section one and a section two. Section one is perpendicular to the cover plate, and section two is parallel to the cover plate. The inner end of section one is fixed to the cover plate, and the outer end of section one is fixed to the inner end of section two. Section two is embedded in the guide groove.

[0017] In the aforementioned electric charging small door, the outer end of the second rod segment has a protruding baffle, which abuts against the guide groove port.

[0018] In the aforementioned electric charging door, the cover plate includes an inner plate and an outer plate. The inner plate is disc-shaped and has a recessed cavity on its outer side. The inner side of the inner plate has a recessed connecting cavity. The outer end of the aforementioned swing arm is hinged to the connecting cavity, and the connecting cavity extends into the aforementioned cavity. The aforementioned outer plate is flat and is fixed to the cavity port on the outer side of the inner plate.

[0019] In the aforementioned electric charging door, the connecting rod is fixed to the upper end of the inner plate.

[0020] In the aforementioned electric charging door, there are two connecting rods, which are symmetrically distributed on both sides of the inner plate. The opening box has guide grooves that correspond one-to-one with the connecting rods.

[0021] In the aforementioned electric charging door, the lower part of the charging port has a V-shaped recessed limiting cavity. The side of the limiting cavity near the port of the charging port is a planar limiting surface one, and the other side of the limiting cavity away from the port of the charging port is a planar limiting surface two. In the initial state, the inner side of the swing arm abuts against the limiting surface two, and at this time the cover plate closes the port of the charging port. When the outer side of the swing arm abuts against the limiting surface one, the lower end of the cover plate moves away from the port of the charging port, thus opening the port of the charging port.

[0022] Compared with existing technologies, this electric charging door limits the swing arm through the limiting cavity at the bottom of the opening box. When the swing arm abuts against both sides of the limiting cavity, the entire door is in the closed and open states respectively. Therefore, this charging door no longer needs an additional locking mechanism, and the movement of the swing arm is driven by an electric actuator. As a result, the entire charging door is not only compact in structure but also has relatively high stability.

[0023] Moreover, the charging door has good sealing performance when it is closed.

[0024] Meanwhile, although the hinge between the cover plate and the swing arm is located on the inner plate, after the outer plate is connected to the inner plate, the entire outer side of the cover plate is flush, which further improves its structural compactness. Attached Figure Description

[0025] Figure 1 This is a 3D structural diagram of the electric charging door when it is closed.

[0026] Figure 2 This is a three-dimensional structural diagram of the electric charging door when it is half-open.

[0027] Figure 3 This is a 3D structural diagram of the electric charging door when it is open.

[0028] Figure 4 This is a three-dimensional structural diagram of the connection between the inner panel and the opening box in this electric charging door.

[0029] Figure 5 This is a cross-sectional structural diagram of the electric charging door.

[0030] Figure 6 This is an exploded structural diagram of the electric charging door.

[0031] In the figure, 1. Inlet box; 1a. Through hole; 1b. Guide groove; 1c. Limiting cavity; 1c1. Limiting surface one; 1c2. Limiting surface two; 2. Driving component; 3. Cover plate; 3a. Inner plate; 3a1. Cavity; 3a2. Connecting cavity; 3b. Outer plate; 4. Swing arm; 5. Connecting rod; 5a. Rod segment one; 5b. Rod segment two; 5c. Baffle plate. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 6 As shown, this electric charging door includes a housing 1 with an internal cavity and an open end. The bottom of the housing 1 has a through hole 1a for inserting a charging head. It also includes a driving component 2, a cover plate 3, and a swing arm 4. The driving component 2 is fixed to the housing 1. The inner end of the swing arm 4 is connected to the driving component 2. The outer end of the swing arm 4 is hinged to the middle of the cover plate 3. The upper part of the cover plate 3 has a movable connection structure with the housing 1. When the driving component 2 drives the swing arm 4 to swing, the upper end of the cover plate 3 can swing and move along the port of the housing 1.

[0036] This electric charging door is connected to the car, and the car's charging port is located at the charging door.

[0037] In the initial state, the cover 3 closes the port of the box 2. At this time, the charging head cannot be inserted into this charging door, which serves as a protection to prevent the charging interface on the car from being exposed to the outside for a long time.

[0038] When charging is required, the drive unit 2 drives the swing arm 4 to swing, and the cover plate 3 swings and moves accordingly after the swing arm 4 swings. Under the action of the movable connection structure, the upper end of the cover plate 3 is always connected to the port of the housing 1. Therefore, the upper end of the cover plate 3 is always connected to the housing 1 during the swing process, which can prevent the cover plate 3 from completely separating from the housing 1 during the opening process.

[0039] Of course, the movable connection structure ensures that the cover plate 3 can open and close smoothly.

[0040] The swing arm 4 is plate-shaped and has an L-shaped cross-section.

[0041] This structure allows the swing arm 4 to smoothly drive the cover plate 3 to move together.

[0042] The driving component 2 is an electric actuator that can drive the swing arm to swing around its lower end.

[0043] Electric actuators are existing technology; therefore, the specific technical solution of the electric actuator will not be described in detail in this embodiment. Specifically, the electric actuator can drive the swing arm 4 to swing stably around its lower end.

[0044] The movable connection structure includes a long guide groove 1b at the port of the housing 1 and a connecting rod 5 fixed to the side of the cover plate 3, wherein the connecting rod 5 is embedded in the guide groove 1b.

[0045] Since the connecting rod 5 is always embedded in the guide groove 1b of the box 1, the upper end of the cover plate 3 is always connected to the port of the box 1 during the swing arm movement, and the cover plate 3 opens the port of the box 1 by gradually tilting.

[0046] The connecting rod 5 includes a straight section 5a and a straight section 5b. The straight section 5a is perpendicular to the cover plate 3, and the straight section 5b is parallel to the cover plate 3. The inner end of the straight section 5a is fixed to the cover plate 3, and the outer end of the straight section 5a is fixed to the inner end of the straight section 5b. The straight section 5b is embedded in the guide groove 1b.

[0047] The first segment 5a can keep the second segment 5b as far away from the cover plate 3 as possible. Of course, the second segment 5b can be stably connected at the guide groove 1b, ultimately ensuring a stable movable connection between the cover plate 3 and the box 1.

[0048] The outer end of the second rod segment 5b has a protruding baffle 5c, which abuts against the port of the guide groove 1b.

[0049] The baffle 5c serves a positioning function to prevent the connecting rod 5 from disengaging from the limiting groove 1b.

[0050] The cover plate 3 includes an inner plate 3a and an outer plate 3b. The inner plate 3a is disc-shaped and has a recessed cavity 3a1 on its outer side. The inner side of the inner plate 3a has a recessed connecting cavity 3a2. The outer end of the swing arm 4 is hinged to the connecting cavity 3a2. The connecting cavity 3a2 extends into the cavity 3a1. The outer plate 3b is flat and is fixed to the port of the cavity 3a1 on the outer side of the inner plate 3a.

[0051] Since the inner plate 3a needs to be hinged to the outer end of the swing arm 4, a cavity 3a1 is provided on the outer side of the inner plate 3a, and a connecting cavity 3a2 is provided on the inner side of the inner plate 3a, with the connecting cavity 3a2 recessed into the cavity 3a1. This structure ensures a stable hinge connection between the inner plate 3a and the swing arm 4.

[0052] Meanwhile, after the outer plate 3b is connected to the inner plate 3a, the entire outer side of the cover plate 3 is flat. Furthermore, the inner side of the cover plate 3 has sufficient space to accommodate the irregularly shaped connecting cavity 3a2.

[0053] In this embodiment, the connecting cavity 3a2 is semi-circular and recessed into the inner side of the inner plate 3a, and the outer end of the swing arm 4 matches the connecting cavity 3a2.

[0054] The aforementioned connecting rod 5 is fixed to the upper end of the inner plate 3a.

[0055] This structure allows the upper end of the cover plate 3 to be stably and movably connected to the port of the box 1.

[0056] There are two connecting rods 5, which are symmetrically distributed on both sides of the inner plate 3a. The aforementioned box 1 has guide grooves 1b that correspond one-to-one with the connecting rods 5.

[0057] Two symmetrically arranged connecting rods 5 ensure that the cover plate 3 is stably and movablely connected to the port of the box 1.

[0058] The lower part of the box 1 has a V-shaped recessed limiting cavity 1c. On the limiting cavity 1c, the side near the port of the box 1 is a planar limiting surface 1c1, and the other side away from the port of the box 1 is a planar limiting surface 1c2. In the initial state, the inner side of the swing arm 4 abuts against the limiting surface 1c2, and at this time the cover plate 3 closes the port of the box 1. When the outer side of the swing arm 4 abuts against the limiting surface 1c1, the lower end of the cover plate 3 moves away from the port of the box 1, and the port of the box 1 is opened.

[0059] The limiting cavity 1c has two functions:

[0060] Firstly, provide sufficient space for the lower end of the swing arm 4 to be connected;

[0061] Secondly, the limiting surface 1c1 and limiting surface 1c2 on the side of the limiting cavity 1c can keep the cover plate 3 stably in the open and closed state. In other words, there is no need to set an additional mechanism to limit the swing arm 4 on the opening box.

[0062] Conventional electric charging doors have a gooseneck structure, which takes up a lot of space when opened. For example, a vehicle originally 2m wide becomes 2.3m wide after the door is opened, making it prone to scraping against surrounding vehicles. In this embodiment, the cover plate occupies less space after the door is opened; a vehicle originally 2m wide becomes 2.11m wide after the door is opened, reducing the likelihood of scraping against surrounding vehicles.

[0063] Because the swing arm is limited by the limiting cavity at the bottom of the charging port, the entire door is in the closed and open states respectively when the swing arm abuts against the two sides of the limiting cavity.

[0064] In this embodiment, when the small door is in the open state, the cover plate is completely disengaged from the through hole, ensuring that the corresponding charging head can pass smoothly through the through hole.

[0065] Therefore, this charging gate no longer needs an additional locking mechanism, and the movement of the swing arm is also driven by an electric actuator. As a result, the entire charging gate is not only compact in structure, but also has relatively high stability.

[0066] Moreover, the charging door has good sealing performance when it is closed.

[0067] Meanwhile, although the hinge between the cover plate and the swing arm is located on the inner plate, after the outer plate is connected to the inner plate, the entire outer side of the cover plate is flush, which further improves its structural compactness.

[0068] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. An electric charging door, comprising a mouth box (1) having an empty cavity and an open end, the mouth box (1) having a through hole (1a) at the bottom for inserting a charging head, characterized in that, It also comprises a driving member (2), a cover plate (3) and a swing arm (4), the driving member (2) is fixedly connected to the mouth box (1), the swing arm (4) is connected to the driving member (2) at the inner end, the outer end of the swing arm (4) is hingedly connected to the middle part of the cover plate (3), and the upper part of the cover plate (3) is movably connected to the mouth box (1), when the driving member (2) drives the swing arm (4) to swing, the upper end of the cover plate (3) can swing and move along the port of the mouth box (1).

2. The electrically powered charging gate according to claim 1, wherein, The swing arm (4) is plate-shaped and has an L-shaped cross section.

3. The electrically powered charging gate according to claim 1, wherein, The driving member (2) is an electric actuator which can drive the swing arm (4) to swing around the lower end.

4. The electrically powered charging gate of claim 1, wherein, The movable connection structure comprises a long strip-shaped guide groove (1b) at the port of the mouth box (1) and a connecting rod (5) fixedly connected to the side of the cover plate (3), and the connecting rod (5) is embedded in the guide groove (1b).

5. The electrically powered charging gate according to claim 4, wherein, The connecting rod (5) comprises a straight rod segment one (5a) and a straight rod segment two (5b), the rod segment one (5a) is arranged perpendicularly to the cover plate (3), the rod segment two (5b) is arranged in parallel to the cover plate (3), the inner end of the rod segment one (5a) is fixedly connected to the cover plate (3), the outer end of the rod segment one (5a) is fixedly connected to the inner end of the rod segment two (5b), and the rod segment two (5b) is embedded in the guide groove (1b).

6. The electrically powered charging gate according to claim 5, wherein, The outer end of the rod segment two (5b) has a protruding baffle (5c), and the baffle (5c) abuts against the port of the guide groove (1b).

7. The electrically powered charging gate of claim 1, wherein, The cover plate (3) comprises an inner plate (3a) and an outer plate (3b), the inner plate (3a) is disc-shaped and has a concave cavity (3a1) on the outer side, the inner plate (3a) has a concave connecting cavity (3a2) on the inner side, the outer end of the swing arm (4) is hingedly connected to the connecting cavity (3a2), the connecting cavity (3a2) extends into the cavity (3a1), and the outer plate (3b) is flat and fixedly connected to the port of the cavity (3a1) on the outer side of the inner plate (3a).

8. The electrically powered charging gate according to claim 4, wherein, The connecting rod (5) is fixedly connected to the upper end of the inner plate (3a).

9. The electrically powered charging gate according to claim 4, wherein, The number of the connecting rods (5) is two, and the two connecting rods (5) are symmetrically arranged on the two sides of the inner plate (3a), and the mouth box (1) has a guide groove (1b) corresponding to each connecting rod (5).

10. The electrically powered charging gate of claim 1, wherein, The lower part of the mouth box (1) has a V-shaped concave limiting cavity (1c), one side of the limiting cavity (1c) near the port of the mouth box (1) is a planar limiting surface one (1c1), the other side of the limiting cavity (1c) away from the port of the mouth box (1) is a planar limiting surface two (1c2), in the initial state, the inner side of the swing arm (4) abuts against the limiting surface two (1c2), and at this time, the cover plate (3) closes the port of the mouth box (1), when the outer side of the swing arm (4) abuts against the limiting surface one (1c1), the lower end of the cover plate (3) is away from the port of the mouth box (1) and opens the port of the mouth box (1).

Citation Information

Patent Citations

  • Automobile charging small door

    CN112193334A