A mobile charging door

Abstract

A mobile charging door includes: a charging port seat, which has an inner cavity, an external opening communicating with the inner cavity, and charging interfaces communicating with the inner cavity and a battery assembly in a vehicle, respectively, and a guide track structure is also provided on the charging port seat; a charging port cover, which can be opened and closed and installed in the charging port seat, and has at least a closed state and an open and hidden state, and the charging port cover is provided with a sliding foot assembly, and the sliding foot assembly is slidably arranged in the guide track structure; a pulley transmission mechanism, which is adapted to the position of the guide track structure, and the pulley transmission mechanism is transmission-connected with the sliding foot assembly; a driving mechanism, and the remaining pulley transmission mechanisms are transmission-connected. The present invention enables the charging port cover to have a closed state and an open and hidden state through structural design, and can be integrated with the outer surface of the vehicle body when in the closed state, and has better aesthetics, and plays a good protective role during charging, so that the charging port cover will not scratch human skin or clothing, greatly improving safety.

Description

Technical Field

[0001] The invention relates to the technical field of charging equipment, in particular to a mobile charging door used in new energy electric vehicles. Background Art

[0002] New energy electric vehicles refer to vehicles that use on-board power as power, use motors to drive wheels, and meet various requirements of road traffic and safety regulations. It uses electricity stored in the battery to start. Sometimes 12 or 24 batteries are used to drive the car, and sometimes more are needed. This type of car is generally equipped with a charging port cover on the body, which can open or close the charging port, and the charging gun rushes through the charging port to charge the battery in the car. Specifically, the charging door is used to close or open the charging port in the body of a vehicle with an electric drive. The charging door has a charging cover that can move between a closed position and an open position. In the closed position: the charging cover forms a substantially seamless transition with the outer surface of the body; in the open position, the charging cover releases the charging port to charge the vehicle energy storage device by inserting the charging gun into the corresponding charging socket.

[0003] This type of charging cover door is used for vehicle charging, and is applied to new energy charging vehicles in vehicles with electric drives. Compared with the refueling door of ordinary fuel vehicles, the cover can be closed after being opened for a few minutes when refueling. However, the charging time is often longer when used in new energy charging vehicles, and the existing flip-out cover is exposed to the outside for a longer time. For safety reasons, the convexity and the exterior of the vehicle body are easy to scratch human skin or clothing. Naughty children are curious about the flip-out cover during the charging process, which is easy to cause safety accidents; in addition, for aesthetic considerations, the long-term opening during the charging process affects the uniform visual appearance of the outer surface. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a mobile charging door, which aims to achieve simple use of the charging socket of the vehicle and can provide better safety, reliability and aesthetics during use.

[0005] The technical solution of the present invention to solve the technical problem is: a mobile charging door, comprising:

[0006] A charging port seat, which has an inner cavity, an external opening communicating with the inner cavity, and a charging interface communicating with the inner cavity and the battery assembly in the vehicle, respectively, and a guide track structure is also provided on the charging port seat;

[0007] A charging port cover, which can be opened and closed and installed in the charging port seat, and has at least a closed state and an open and hidden state, and the charging port cover is provided with a sliding foot assembly, and the sliding foot assembly is slidably arranged in the guide track structure;

[0008] A pulley transmission mechanism, which is adapted to the position of the guide track structure, and the pulley transmission mechanism is in transmission connection with the slide foot assembly;

[0009] The driving mechanism is connected to the rest of the pulley transmission mechanisms.

[0010] Preferably, the pulley transmission mechanism includes a driving wheel group, a driven wheel group, a guide wheel group and a synchronous belt, the synchronous belt is respectively connected to the driving wheel group, the driven wheel group and the guide wheel group, the driving wheel group is transmission connected to the driving mechanism, and the sliding foot assembly is fixedly connected to the synchronous belt.

[0011] Preferably, the pulley transmission mechanism further comprises a tensioner pulley set, and the tensioner pulley set is also connected to the synchronous belt.

[0012] Preferably, the synchronous belt forms a toothed fit with the driving wheel set, the driven wheel set, the guide wheel set and the tensioning wheel set respectively.

[0013] Preferably, it also includes a plurality of position feedback switches electrically connected to the on-board computer.

[0014] Preferably, the position feedback switch comprises at least a first contact switch and a second contact switch, and the sliding foot assembly is contactably connected with the first contact switch and the second contact switch respectively.

[0015] Preferably, the first contact switch is arranged at the front end of the guide track structure, and the second contact switch is arranged at the end end of the guide track structure.

[0016] Preferably, the sliding foot assembly includes a front sliding foot assembly and a rear sliding foot assembly, the guide track structure includes a front track groove group and a rear track groove group, the front sliding foot assembly is slidably arranged in the front track groove group, and the rear sliding foot assembly is slidably arranged in the rear track groove group.

[0017] Preferably, the front sliding foot assembly includes two driven front sliding foot units, which are respectively protruded on both sides of the charging port cover;

[0018] The rear sliding foot assembly includes an active rear sliding foot unit and a driven rear sliding foot unit, which are respectively protruded on both sides of the charging port cover, wherein the active rear sliding foot unit is transmission-connected to the pulley transmission mechanism.

[0019] Preferably, the rear track groove group is located above the front track groove group, the front track groove group is straight, the front section of the rear track groove group is bent downward from front to back, and the middle and rear sections of the rear track groove group are also straight.

[0020] The beneficial effects of the present invention are as follows: 1. Through structural design, the charging port cover has a closed state and an open and hidden state. When in the closed state, it can be integrated with the outer surface of the vehicle body, has better aesthetics, and reduces the risk of foreign matter or water (especially rainwater) invading between the charging cover and the surrounding vehicle body; when in the open and hidden state, the charging port cover is hidden in the inner cavity of the charging port seat, which plays a good protective role and replaces the existing outward-turning structure, so that the charging port cover will not scratch human skin or clothes, greatly improving safety.

[0021] 2. The charging port cover is automatically opened and closed through an electric drive mechanism, making the opening and closing actions more accurate and preventing improper manual operation.

[0022] 3. Through the coordinated use of the sliding foot assembly and the guide track structure, the charging port cover can be smoothly and efficiently switched between the closed state and the open hidden state.

[0023] 4. It adopts a pulley transmission mechanism, which has the characteristics of simple structure, smooth transmission, buffering and vibration absorption, quietness, ability to transmit power between large axis spacing and multiple axes, low cost, no need for lubrication, and easy maintenance.

[0024] 5. The synergistic effect of the position feedback switch and the sliding foot assembly can reasonably control the operation of the drive mechanism, thereby making the movement of the charging port cover more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure when the charging port cover is closed on the vehicle body in the present invention.

[0026] Figure 2 It is a structural schematic diagram of the present invention.

[0027] Figure 3 It is a structural schematic diagram of the present invention from another angle.

[0028] Figure 4 It is a schematic diagram of the structure when the charging port cover is in the closed state.

[0029] Figure 5 It is a schematic diagram of the structure when the charging port cover is opened.

[0030] Figure 6 It is a structural schematic diagram of the charging port cover in an open and hidden state.

[0031] Figure 7 It is a schematic diagram of the structure of the charging port.

[0032] Figure 8 It is a schematic diagram of the structure of the charging port cover.

[0033] Fig. 9 This is a schematic diagram of the structure of the charging port cover from another angle. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] Reference Figures 1 to 9 , a mobile charging door, comprising:

[0036] A charging port seat 1, which has an inner cavity 2, an external opening 3 communicating with the inner cavity 2, and a charging interface 4 communicating with the inner cavity 2 and the battery assembly in the vehicle, respectively. The charging port seat 1 is also provided with a guide track structure;

[0037] A charging port cover 5, which is installed in the charging port seat 1 in an openable and closable manner and has at least a covered state and an open and hidden state. The charging port cover 5 is provided with a sliding foot assembly, and the sliding foot assembly is slidably arranged in the guide track structure;

[0038] A pulley transmission mechanism, which is adapted to the position of the guide track structure, and the pulley transmission mechanism is in transmission connection with the slide foot assembly;

[0039] The driving mechanism 6 is connected to the other pulley transmission mechanisms.

[0040] In this embodiment, the pulley transmission mechanism includes a driving wheel group 7, a driven wheel group 8, a guide wheel group 9 and a synchronous belt 10. The synchronous belt 10 is connected to the driving wheel group 7, the driven wheel group 8 and the guide wheel group 9 respectively. The driving wheel group 7 is in transmission connection with the driving mechanism 6, and the sliding foot assembly is fixedly connected with the synchronous belt 10. Through the setting of the driving wheel group 7, the power of the driving mechanism 6 is introduced into the pulley transmission mechanism. The preferred driving mechanism 6 is an electric actuator electrically connected to the driving computer, and the electric actuator is in transmission connection with the driving wheel group 7 through a rotating shaft 11; the setting of the driven wheel group 8 can cooperate with the operation of the driving wheel group 7 and the synchronous belt 10. Preferably, there are at least two driven wheel groups 8 to make the entire pulley transmission mechanism operate more smoothly; the setting of the guide wheel group 9 is to limit the direction of a specific section of the synchronous belt 10 so as to cooperate with the guide track structure for use; the synchronous belt 10 connects the various wheel groups in series and transmits power to the sliding foot assembly so that the charging port cover 5 can move along the guide track structure.

[0041] Furthermore, in order to make the entire pulley transmission mechanism have a better working performance, the pulley transmission mechanism also includes a tensioning wheel set 12, and the tensioning wheel set 12 is also connected to the synchronous belt 10. Through the setting of the tensioning wheel set 12, it is possible to cooperate with other wheel sets so that the synchronous belt 10 is always in a relatively tense state, and will not be loosened or separated, thereby ensuring smooth, accurate and efficient transmission. Preferably, an adjustment groove 13 is provided on the charging port seat 1, and an adjustment seat 14 is provided in the adjustment groove 13, and the tensioning wheel set 12 is fixed on the adjustment seat 14. When in use, the adjustment seat 14 can move forward and backward along the adjustment groove 13, thereby realizing the position adjustment of the tensioning wheel set 12, and then realizing the tightness adjustment of the synchronous belt 10.

[0042] There are many ways of matching between the existing synchronous belt 10 and each wheel set. According to actual conditions, the synchronous belt 10 described in the present invention forms a tooth-shaped match with the driving wheel set 7, the driven wheel set 8, the guide wheel set 9 and the tensioning wheel set 12, respectively, which can effectively prevent the synchronous belt 10 and each wheel set from slipping or loosening due to too little friction during movement, thereby ensuring the stable operation of the pulley transmission mechanism.

[0043] In order to cooperate with the driving mechanism 6 to operate more accurately and efficiently, and at the same time reduce unnecessary transmission of the pulley transmission mechanism, it plays a role in protecting various accessories. In the present invention, several position feedback switches electrically connected to the driving computer are also included. Specifically, the position feedback switch includes at least a first contact switch 15 and a second contact switch 16, and the sliding foot assembly is respectively connected to the first contact switch 15 and the second contact switch 16; the first contact switch 15 is arranged at the front end of the guide track structure, and the second contact switch 16 is arranged at the end of the guide track structure. When the charging port cover 5 is in the closed state, the sliding foot assembly abuts against the first contact switch 15, so that the first contact switch 15 feeds back the position of the charging port cover 5 at this time to the driving computer; when the charging port cover 5 is in the open and hidden state, the sliding foot assembly abuts against the second contact switch 16, so that the second contact switch 16 feeds back the position of the charging port cover 5 at this time to the driving computer; and when the charging port cover 5 is in the state switching process, the sliding foot assembly at this time is neither in contact with the first contact switch 15 nor in contact with the second contact switch 16. Through the information feedback from the first contact switch 15 and the second contact switch 16 , the on-board computer can issue a correct action instruction to the drive mechanism 6 to accurately open or close the charging port cover 5 .

[0044] There are many forms of sliding foot assemblies, each with advantages and disadvantages. In this embodiment, a preferred sliding foot assembly structure is proposed, which specifically includes a front sliding foot assembly 23 and a rear sliding foot assembly 24. The guide track structure includes a front track groove group 17 and a rear track groove group 18. The front sliding foot assembly 23 is slidably arranged in the front track groove group 17, and the rear sliding foot assembly 24 is slidably arranged in the rear track groove group 18. The double sliding foot structure of the front sliding foot assembly 23 and the rear sliding foot assembly 24 is adopted, so that there are two sets of contact points between the charging port cover 5 and the guide track structure, which can be evenly stressed, so that the charging port cover 5 moves more smoothly during opening or closing, and the relevant parts will not be damaged or broken due to excessive force. More specifically, the front sliding foot assembly 23 includes two driven front sliding foot units 19, which are respectively protruded on both sides of the charging port cover 5; the rear sliding foot assembly 24 includes an active rear sliding foot unit 20 and a driven rear sliding foot unit 21, which are respectively protruded on both sides of the charging port cover 5, wherein the active rear sliding foot unit 20 is transmission-connected to the pulley transmission mechanism.

[0045] When the charging port cover 5 switches from the closed state to the open and hidden state, it does not just make a simple linear movement. Specifically, when in the closed state, the charging port cover 5 needs to be flush with the outer sheet metal surface of the vehicle body 22 to form an integrated streamlined effect; when in the open and hidden state, the charging port cover 5 needs to be hidden in the inner cavity 2 of the charging port seat 1, so when switching, the amplitude of the rear end movement of the charging port cover 5 is greater than the amplitude of the front end movement. In order to meet the operation requirements of the charging port cover 5, the rear track groove group 18 is located above the front track groove group 17, the front track groove group 17 is straight, and the front section of the rear track groove group 18 is bent from front to back and tilted downward. The guide wheel group 9 is arranged near the front end of the bend, and cooperates with each other to guide the operation of the charging port cover 5, and the middle and rear sections of the rear track groove group 18 are also straight.

[0046] The working principle of the present invention is as follows:

[0047] When charging is required, the driving computer issues a command to the driving mechanism 6 to start the driving mechanism 6 to start running. The driving mechanism 6 outputs power to the driving wheel set 7 through the rotating shaft 11. The driving wheel set 7 cooperates with the driven wheel set 8, the guide wheel set 9 and the tensioning wheel set 12 to make the synchronous belt 10 run. While the synchronous belt 10 is running, it drives the active rear sliding foot unit 20 connected thereto to move, so that the charging port cover 5 moves along the preset guide track structure, that is, switches from the covered state to the open hidden state, so that the external opening 3 and the charging interface 4 are exposed, and the user can connect the external charging device to charge the battery assembly in the vehicle;

[0048] When charging is completed, the computer sends a command to the drive mechanism 6 to make the drive mechanism 6 start to run in reverse. The drive mechanism 6 outputs power to the driving wheel group 7 through the rotating shaft 11. The driving wheel group 7 cooperates with the driven wheel group 8, the guide wheel group 9 and the tensioning wheel group 12 to make the synchronous belt 10 run in reverse. While the synchronous belt 10 is running, it drives the active rear sliding foot unit 20 connected to it to move, so that the charging port cover 5 is reset forward along the preset guide track structure, that is, it switches from the open and hidden state to the covered state, and then the charging port cover 5 covers the external opening 3 and blocks the charging interface 4. At the same time, the charging port cover 5 is integrated with the outer surface of the vehicle body 22.

Claims

1. A mobile charging door, characterized in that: include: A charging port seat, which has an inner cavity, an external opening communicating with the inner cavity, and a charging interface communicating with the inner cavity and the battery assembly in the vehicle, respectively, and a guide track structure is also provided on the charging port seat; A charging port cover, which can be opened and closed and installed in the charging port seat, and has at least a closed state and an open and hidden state, and the charging port cover is provided with a sliding foot assembly, and the sliding foot assembly is slidably arranged in the guide track structure; A pulley transmission mechanism, which is adapted to the position of the guide track structure, and the pulley transmission mechanism is in transmission connection with the slide foot assembly; A driving mechanism, which is in driving connection with the pulley transmission mechanism; The pulley transmission mechanism comprises a driving wheel group, a driven wheel group, a guide wheel group and a synchronous belt, wherein the synchronous belt is respectively connected to the driving wheel group, the driven wheel group and the guide wheel group, the driving wheel group is drivingly connected to the driving mechanism, and the sliding foot assembly is fixedly connected to the synchronous belt; The driving mechanism is an electric actuator electrically connected to the driving computer, and the electric actuator is transmission-connected to the driving wheel set via a rotating shaft; The driven wheel set cooperates with the driving wheel set and the synchronous belt to operate, and there are at least two driven wheel sets; The guide wheel set limits the direction of the synchronous belt to match the guide track structure; The synchronous belt connects the driving wheel group, the driven wheel group and the guide wheel group in series, and transmits power to the sliding foot assembly, so that the charging port cover moves along the guide track structure; The pulley transmission mechanism also includes a tensioning wheel set, which is also connected to the synchronous belt so that the synchronous belt is always in a tense state, and the synchronous belt forms a toothed match with the driving wheel set, the driven wheel set, the guide wheel set and the tensioning wheel set respectively.

2. The mobile charging door according to claim 1, characterized in that: It also includes a plurality of position feedback switches electrically connected to the on-board computer.

3. The mobile charging door according to claim 2, characterized in that: The position feedback switch at least includes a first contact switch and a second contact switch, and the sliding foot assembly is respectively connected to the first contact switch and the second contact switch.

4. The mobile charging door according to claim 3, characterized in that: The first contact switch is arranged at the front end of the guide track structure, and the second contact switch is arranged at the end end of the guide track structure.

5. The mobile charging door according to claim 1, characterized in that: The slide foot assembly includes a front slide foot assembly and a rear slide foot assembly, the guide track structure includes a front track groove group and a rear track groove group, the front slide foot assembly is slidably arranged in the front track groove group, and the rear slide foot assembly is slidably arranged in the rear track groove group.

6. The mobile charging door according to claim 5, characterized in that: The front sliding foot assembly includes two front sliding foot units, which are respectively protruded on both sides of the charging port cover; The rear sliding foot assembly includes an active rear sliding foot unit and a driven rear sliding foot unit, which are respectively protruded on both sides of the charging port cover, wherein the active rear sliding foot unit is transmission-connected to the pulley transmission mechanism.

7. The mobile charging door according to claim 5, characterized in that: The rear track groove group is located above the front track groove group. The front track groove group is straight. The front section of the rear track groove group is bent downward from front to back. The middle and rear sections of the rear track groove group are also straight.

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