An automatic opening and closing control device for inner and outer covers of an electric vehicle charging port

Abstract

The present invention discloses an automatic opening and closing control device for the inner and outer covers of an electric vehicle charging port, comprising a ground rail, a power distribution base, an automatic lifting column, an outer door pushing unit and an inner door clamping unit, wherein the ground rail is arranged on the ground beside the charging parking space, and the upper part of the ground rail slides and guides to support the power distribution base; an automatic lifting column is vertically fixed on the top of the distribution base, and the outer door pushing unit and the inner door clamping unit are rotatably mounted on the outer wall of the lifting section of the upper part of the automatic lifting column; the outer door pushing unit provides a pushing force for horizontal flipping and closing of the outer cover of the electric vehicle charging port; and the inner door clamping unit provides a clamping, dragging and closing force for the inner cover of the electric vehicle charging port. The automatic opening and closing control device can realize the automatic opening and closing control of the inner and outer covers of most electric vehicle charging ports on the market, shorten the invalid occupation time of the charging position, and make the charging of electric vehicles more intelligent and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of automatic charging of electric vehicles, and in particular to an automatic opening and closing control device for inner and outer covers of a charging port of an electric vehicle. Background Art

[0002] With the popularity of electric vehicles, the development of supporting equipment such as charging piles related to electric vehicles has been driven, and automatic charging has become the research and development focus of technical personnel in this field. However, since the charging time of electric vehicles is much longer than the refueling time of ordinary fuel vehicles, in order to relieve the waiting time of personnel and save charging land and charging equipment resources to the maximum extent, fully automated mobile charging sites will inevitably be the direction of development in the future. At present, there are related patents for automatic charging guns and movable charging parking spaces, but as an indispensable part of the charging process, that is, how to realize the opening and closing of electric vehicle charging ports in an unmanned state, there are very few technical solutions, which has caused the following problems:

[0003] 1 The driver needs to wait for the previous electric car to be fully charged and the charging gun to be usable, and then open the charging port and load the charging gun before leaving the charging vehicle.

[0004] 2 After charging is completed, the fully automatic charging gun leaves the vehicle's charging port, but the vehicle's charging port is not closed. During the time when the driver returns to the vehicle, small animals, rain, children's fingers, etc. entering the open charging port may easily cause damage to the charging port or even cause danger.

[0005] 3 After charging is completed, if the driver does not return and the fully automatic charging gun is set not to leave the charging port, the automatic moving parking space cannot move the vehicle that has completed charging, causing subsequent vehicles to wait in vain and wasting charging pile resources.

[0006] In addition, the existing electric vehicle charging technology can realize the automatic plugging and unplugging of the charging head. However, due to the wide variety of electric vehicle brands, models, sizes and types, no technology has been found that can automatically control the opening and closing of the inner and outer covers of the electric vehicle charging port. The inner and outer covers have the following characteristics: the existing charging ports are mostly equipped with two layers of covers, of which the outer cover is similar to the outer cover of the car tank, which can be opened by pressing the button in the car, or manually pressing the outer cover to trigger its spring lock to open; and the inner cover is mostly a rubber cover, which is used for dustproof sealing of the electric vehicle charging port and insulation protection from the car body. In summary, how to design a mechanical structure that can automatically control the opening and closing of the inner and outer covers of the closed charging port before and after charging, and shorten the invalid occupation time of the charging position, has become a technical problem that needs to be solved by people in this field. Summary of the invention

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic opening and closing control device for the inner and outer covers of an electric vehicle charging port, which can realize the automatic opening and closing control of the inner and outer covers of most electric vehicle charging ports on the market, shorten the invalid occupation time of the charging position, and make electric vehicle charging more intelligent and convenient.

[0008] An automatic opening and closing control device for inner and outer covers of an electric vehicle charging port comprises a ground rail, a power distribution base, an automatic lifting column, an outer door pushing unit and an inner door clamping unit, wherein the ground rail is arranged on the ground beside a charging parking space, and the upper part of the ground rail is slidably guided to support the power distribution base; an automatic lifting column is vertically fixed on the top of the power distribution base, and the outer door pushing unit and the inner door clamping unit are rotatably mounted on the outer wall of the lifting section on the upper part of the automatic lifting column; the outer door pushing unit provides a pushing force for horizontally flipping and closing the outer cover of the electric vehicle charging port; and the inner door clamping unit provides a clamping, dragging and closing force for the inner cover of the electric vehicle charging port.

[0009] Preferably, the outer door pushing unit and the inner door clamping unit are axially spaced apart and arranged on the lifting section of the automatic lifting column, wherein the outer door pushing unit and the inner door clamping unit both include a circumferential rotating power mechanism; the circumferential rotating power mechanism includes an elliptical ring frame, which is circumferentially rotating and axially limitedly sleeved on the outer wall of the lifting section on the upper part of the automatic lifting column, and the inner circumference of the elliptical ring frame is rotationally embedded and circumferentially evenly provided with a plurality of driven rollers that cooperate with and support the circumferential outer wall of the lifting section of the automatic lifting column, the inner circumference of the elliptical ring frame is rotationally provided with an active roller that rotates and is extrudedly connected to the circumferential outer wall of one of the driven rollers, and the elliptical ring frame is fixedly provided with a circumferential power motor that provides rotational power to the active roller.

[0010] Preferably, a plurality of annular grooves arranged at intervals are formed on the outer wall of the lifting section at the upper part of the automatic lifting column, and an elliptical ring frame is rotatably embedded in the annular groove.

[0011] Preferably, the outer door pushing unit also includes a pushing motor, a U-shaped rocker arm, a pushing roller, a distance measuring sensor and a camera, wherein the pushing motor, the U-shaped rocker arm and the pushing roller are arranged at one end of the long axis of the elliptical ring frame, and the other end of the long axis of the elliptical ring frame is arranged with an active roller and a circumferential power motor; the pushing motor is vertically fixed on an axial end face of the elliptical ring frame, and the output end of the pushing motor is coaxially fixed with the U-shaped rocker arm; one end of the U-shaped rocker arm rotates and penetrates the elliptical ring frame, and the other end of the U-shaped rocker arm rotates to fit the pushing roller; the distance measuring sensor and the camera are fixed on the top surface of the elliptical ring frame of the outer door pushing unit, and the detection ends of the distance measuring sensor and the camera are facing the middle section of the rotation path of the U-shaped rocker arm.

[0012] Preferably, the inner door clamping unit also includes a clamping seat, a clamping motor, a screw, and a symmetrically arranged clamping block and an articulated rod group, wherein the clamping seat is radially fixed on the outer wall of the elliptical ring frame of the inner door clamping unit, and the clamping motor is fixedly embedded in the clamping seat; the interior of the clamping motor axially penetrates and is threadedly connected to the screw, and the axial extension and contraction power of the screw is provided by the clamping motor; one end of the screw extends into the clamping seat and is symmetrically hingedly connected to the articulated rod group; the other end of the articulated rod group is hingedly supported by the clamping block.

[0013] Preferably, the hinged rod group includes a first hinge rod, a second hinge rod and a third hinge rod, wherein the first hinge rod and the third hinge rod are both straight rods, and the second hinge rod is a V-shaped rod; one end of the third hinge rod and the turning point of the middle section of the second hinge rod are connected to the clamping seat pin shaft, and the other end of the third hinge rod is hingedly connected to the clamping block; one end of the first hinge rod is hingedly connected to the end of the screw rod, and the other end of the first hinge rod is hingedly connected to a V-shaped opening end of the second hinge rod; the other V-shaped opening end of the second hinge rod is hingedly connected to the clamping block.

[0014] Preferably, the power distribution base provides operating power for the automatic lifting column, the circumferential power motor, the pushing motor and the clamping motor.

[0015] The advantages and technical effects of the present invention are:

[0016] The present invention discloses an automatic opening and closing control device for inner and outer covers of an electric vehicle charging port. The ground rail provides a sliding guide for a power distribution base for initial positioning of the entire device, so that the entire device can be moved to a corresponding position (such as the front of the vehicle, the side of the vehicle, etc.) of the electric vehicle charging port; the power distribution base provides support and power supply for the entire device; the working height of the outer door pushing unit and the inner door clamping unit are adjusted by an automatic lifting column, wherein an elliptical ring frame serves as a primary rough adjustment mechanism for the outer door pushing unit and the inner door clamping unit, the elliptical ring frame is provided with a guide support by an annular groove, and is provided with rotational power by a driven roller, an active roller and an annular power motor, and the functions of the elliptical ring frame also include: 1. providing annular and radial pushing forces for the outer door pushing unit, applying an extrusion force when opening the outer cover to trigger a spring lock, and implementing pushing when closing the outer cover; 2. providing annular and radial dragging forces for the inner door clamping unit, so as to facilitate opening or closing of the inner cover made of a flexible rubber material.

[0017] The present invention provides an automatic opening and closing control device for inner and outer covers of an electric vehicle charging port, wherein an outer door pushing unit drives a U-shaped rocker arm to swing through a pushing motor, thereby driving a pushing roller to perform secondary fine adjustment to push the outer cover of the charging port.

[0018] The present invention provides an automatic opening and closing control device for the inner and outer covers of an electric vehicle charging port, wherein an inner door clamping unit provides circumferential telescopic power for a screw rod through a clamping motor, wherein the screw rod pushes the first hinge rod and the second hinge rod to drive the clamping block to move, and the second hinge rod and the third hinge rod cooperate to support the clamping block, thereby realizing the axial movement of the screw rod toward the outside of the elliptical ring frame to drive the clamping block to move backward and loosen the inner cover, and the axial movement of the screw rod toward the inside of the elliptical ring frame to drive the clamping block to move in the opposite direction and clamp the inner cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the front view of the present invention (automatic lifting column upward posture, partial cross-section);

[0020] Figure 2 It is a three-dimensional diagram of the present invention (automatic lifting column downward posture, partial cross-section);

[0021] Figure 3 for Figure 1 Sectional view of section AA (structural diagram of the outer door push unit);

[0022] Figure 4 for Figure 1 Sectional view of the middle BB section (schematic diagram of the inner door clamping unit structure, clamping posture of the clamping block);

[0023] Figure 5 for Figure 1 Sectional view of the middle BB section (schematic diagram of the inner door clamping unit structure, with the clamping block released);

[0024] In the figure: 1-lifting section; 2-external door pushing unit; 3-inner door clamping unit; 4-automatic lifting column; 5-power distribution base; 6-ground rail; 7-pushing roller; 8-U-shaped rocker arm; 9-pushing motor; 10-distance sensor and camera; 11-driven roller; 12-circumferential power motor; 13-active roller; 14-elliptical ring frame; 15-clamping seat; 16-clamping block; 17-ring groove; 18-third hinge rod; 19-second hinge rod; 20-first hinge rod; 21-clamping motor; 22-screw rod. DETAILED DESCRIPTION

[0025] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings. It should be noted that the embodiments are illustrative, not restrictive, and the protection scope of the present invention cannot be limited thereby.

[0026] An automatic opening and closing control device for inner and outer covers of an electric vehicle charging port comprises a ground rail 6, a power distribution base 5, an automatic lifting column 4, an outer door pushing unit 2 and an inner door clamping unit 3, wherein the ground rail is arranged on the ground beside a charging parking space, and the upper part of the ground rail is slidably guided to support the power distribution base; an automatic lifting column is vertically fixed on the top of the distribution base, and an outer door pushing unit and an inner door clamping unit are rotatably mounted on the outer wall of a lifting section 1 on the upper part of the automatic lifting column; the outer door pushing unit provides a pushing force for horizontally flipping and closing the outer cover of the electric vehicle charging port; and the inner door clamping unit provides a clamping, dragging and closing force for the inner cover of the electric vehicle charging port.

[0027] Preferably, the outer door pushing unit and the inner door clamping unit are axially spaced apart and arranged on the lifting section of the automatic lifting column, wherein the outer door pushing unit and the inner door clamping unit both include a circumferential rotating power mechanism; the circumferential rotating power mechanism includes an elliptical ring frame 14, which is circumferentially rotating and axially limitedly sleeved on the outer wall of the lifting section on the upper part of the automatic lifting column, and the inner circumference of the elliptical ring frame is rotatably embedded and circumferentially evenly arranged with a plurality of driven rollers 11 that are supported on the circumferential outer wall of the lifting section of the automatic lifting column, and the inner circumference of the elliptical ring frame is rotatably embedded and circumferentially evenly arranged with a plurality of driven rollers 11 that are supported on the circumferential outer wall of the lifting section of the automatic lifting column, and the inner rotation of the elliptical ring frame is provided with an active roller 13 that is rotated and extruded on the circumferential outer wall of one of the driven rollers, and the elliptical ring frame is fixed with a circumferential power motor 12 that provides rotational power to the active roller.

[0028] Preferably, a plurality of annular grooves 17 arranged at intervals are formed on the outer wall of the lifting section at the upper part of the automatic lifting column, and an elliptical ring frame is rotatably embedded in the annular groove.

[0029] Preferably, the outer door pushing unit also includes a pushing motor 9, a U-shaped rocker arm 8, a pushing roller 7, a ranging sensor and a camera 10, and the pushing motor, U-shaped rocker arm and pushing roller are arranged at one end of the long axis of the elliptical ring frame, and the other end of the long axis of the elliptical ring frame is arranged with an active roller and a circumferential power motor; the pushing motor is vertically fixed on an axial end face of the elliptical ring frame, and the output end of the pushing motor is coaxially fixed with the U-shaped rocker arm; one end of the U-shaped rocker arm rotates and penetrates the elliptical ring frame, and the other end of the U-shaped rocker arm rotates to fit the pushing roller; the ranging sensor and the camera are fixed on the top surface of the elliptical ring frame of the outer door pushing unit, and the detection ends of the ranging sensor and the camera are facing the middle section of the rotation path of the U-shaped rocker arm.

[0030] Preferably, the inner door clamping unit also includes a clamping seat 15, a clamping motor 21, a screw 22, and a symmetrically arranged clamping block 16 and an articulated rod group, wherein the clamping seat is radially fixed on the outer wall of the elliptical ring frame of the inner door clamping unit, and the clamping motor is fixedly embedded in the clamping seat; the interior of the clamping motor axially penetrates and is threadedly connected to the screw, and the axial extension and contraction power of the screw is provided by the clamping motor; one end of the screw extends into the clamping seat and is symmetrically hingedly connected to the articulated rod group; the other end of the articulated rod group is hingedly supported by the clamping block.

[0031] Preferably, the hinged rod group includes a first hinge rod 20, a second hinge rod 19 and a third hinge rod 18, wherein the first hinge rod and the third hinge rod are both straight rods, and the second hinge rod is a V-shaped rod; one end of the third hinge rod and the turning point of the middle section of the second hinge rod are connected to the clamping seat pin shaft, and the other end of the third hinge rod is hingedly connected to the clamping block; one end of the first hinge rod is hingedly connected to the end of the screw rod, and the other end of the first hinge rod is hingedly connected to a V-shaped opening end of the second hinge rod; the other V-shaped opening end of the second hinge rod is hingedly connected to the clamping block.

[0032] Preferably, the power distribution base provides operating power for the automatic lifting column, the circumferential power motor, the jacking motor and the clamping motor.

[0033] In addition, the present invention preferably reserves a position for configuring a controllable RF circuit inside the power distribution base, reserves a fixed space for RF power and a power outlet (wire) for providing circuit current, and is used to install available RF circuit units of automobiles of different national brands. It is used in certain models that open the outer door of the charging port by radio.

[0034] In addition, in the present invention, preferably, the automatic lifting column and the power distribution base are both mature products in the prior art.

[0035] In order to more clearly describe the specific implementation mode of the present invention, an embodiment is provided below:

[0036] The automatic opening and closing control device of the inner and outer covers of the charging port of an electric vehicle of the present invention has the following working steps:

[0037] Step 1: The automatic opening and closing control device travels on the ground rail, locks the position of the charging port through the camera and then stops (the charging port can be assisted by the non-adhesive identification sticker on the vehicle body during this process), and starts the automatic lifting column to further adjust the relative height position between the outer door push unit of the automatic opening and closing control device and the outer cover of the vehicle charging port;

[0038] Step 2: The distance measuring sensor measures and calculates the position of the push roller and the vehicle, and feeds it back to the host. After the host calculates, it starts the elliptical ring frame and presses the charging port car cover (outer cover). After the car cover is opened, the elliptical ring frame and the U-shaped rocker arm are rotated again to make the push roller separate from the car cover to make way for the inner cover clamping unit.

[0039] Step 3: Start the automatic lifting column to drive the inner cover clamping unit to rise to the charging port position, rotate the elliptical ring frame, align the middle position of the gap between the two clamping blocks with the inner cover, and then start the clamping motor to drive the screw and the hinged rod group in turn, thereby driving the clamping blocks to move in opposite directions and clamp on the inner cover; finally, rotate the elliptical ring frame again, and the clamping blocks apply dragging power to the inner cover and perform the action of uncovering the inner cover, thereby exposing the charging port;

[0040] The above three steps are performed sequentially to realize automatic opening of the inner and outer covers of the charging port of the electric vehicle, and then the charging plug is automatically inserted into the charging port for charging by mature means in the prior art, until it is automatically detached from the charging port after being fully charged, and finally the inner and outer covers of the car are closed sequentially in the order of step three, step two, and step one, thus completing a charging operation of the electric vehicle. The driver can drive away from the charging parking space directly without manually opening and closing the cover of the charging port, thereby effectively improving the charging efficiency and shortening the ineffective occupation time of the charging space.

[0041] All the parts not described in the present invention adopt mature products and mature technical means in the prior art.

[0042] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An automatic opening and closing control device for the inner and outer covers of an electric vehicle charging port, characterized in that: It includes a ground rail, a power distribution base, an automatic lifting column, an outer door pushing unit and an inner door clamping unit, wherein the ground rail is arranged on the ground next to the charging parking space, and the upper part of the ground rail is slidably guided to support the power distribution base; an automatic lifting column is vertically fixed on the top of the power distribution base, and the outer door pushing unit and the inner door clamping unit are rotatably mounted on the outer wall of the lifting section on the upper part of the automatic lifting column; the outer door pushing unit provides a pushing force for the outer cover of the electric vehicle charging port to flip horizontally and close; the inner door clamping unit provides a clamping, dragging and closing force for the inner cover of the electric vehicle charging port; The outer door pushing unit and the inner door clamping unit are axially spaced and arranged on the lifting section of the automatic lifting column, wherein the outer door pushing unit and the inner door clamping unit both include a circumferential rotating power mechanism; the circumferential rotating power mechanism includes an elliptical ring frame, which is circumferentially rotating and axially limited and sleeved on the outer wall of the lifting section of the upper part of the automatic lifting column, and the inner circumference of the elliptical ring frame is rotationally embedded and circumferentially evenly provided with a plurality of driven rollers that are supported on the circumferential outer wall of the lifting section of the automatic lifting column, and the inner circumference of the elliptical ring frame is provided with an active roller that rotates and is pressed and connected to the circumferential outer wall of one of the driven rollers, and the elliptical ring frame is fixed with a circumferential power motor that provides rotational power for the active roller; The elliptical ring frame provides annular and radial pushing forces for the outer door pushing unit, applies a squeezing force when opening the outer cover and triggers the spring lock, and performs pushing when closing the outer cover; The elliptical ring frame provides circumferential and radial dragging power for the inner door clamping unit, so as to facilitate opening or closing the inner sealing cover made of flexible rubber material.

2. The automatic opening and closing control device for the inner and outer covers of an electric vehicle charging port according to claim 1, characterized in that: A plurality of annular grooves arranged at intervals are formed on the outer wall of the lifting section at the upper part of the automatic lifting column, and an elliptical ring frame is rotatably embedded in the annular groove.

3. The automatic opening and closing control device for the inner and outer covers of an electric vehicle charging port according to claim 1, characterized in that: The outer door pushing unit also includes a pushing motor, a U-shaped rocker arm, a pushing roller, a distance measuring sensor and a camera. The pushing motor, the U-shaped rocker arm and the pushing roller are arranged at one end of the long axis of the elliptical ring frame, and the other end of the long axis of the elliptical ring frame is arranged with an active roller and a circumferential power motor; the pushing motor is vertically fixed on an axial end face of the elliptical ring frame, and the output end of the pushing motor is coaxially fixed with the U-shaped rocker arm; one end of the U-shaped rocker arm rotates and penetrates the elliptical ring frame, and the other end of the U-shaped rocker arm rotates to fit the pushing roller; the distance measuring sensor and the camera are fixed on the top surface of the elliptical ring frame of the outer door pushing unit, and the detection ends of the distance measuring sensor and the camera face the middle section of the rotation path of the U-shaped rocker arm.

4. The automatic opening and closing control device for the inner and outer covers of an electric vehicle charging port according to claim 1, characterized in that: The inner door clamping unit also includes a clamping seat, a clamping motor, a screw, and a symmetrically arranged clamping block and an articulated rod group, wherein the clamping seat is radially fixed on the outer wall of the elliptical ring frame of the inner door clamping unit, and the clamping motor is fixedly embedded in the clamping seat; the interior of the clamping motor axially penetrates and is threadedly connected to the screw, and the axial extension and contraction power of the screw is provided by the clamping motor; one end of the screw extends into the clamping seat and is symmetrically hingedly connected to the articulated rod group; the other end of the articulated rod group is hingedly supported by the clamping block.

5. The automatic opening and closing control device for the inner and outer covers of the electric vehicle charging port according to claim 4, characterized in that: The hinge rod group includes a first hinge rod, a second hinge rod and a third hinge rod, wherein the first hinge rod and the third hinge rod are straight rods, and the second hinge rod is a V-shaped rod; one end of the third hinge rod and the turning point of the middle section of the second hinge rod are connected to the clamping seat pin shaft, and the other end of the third hinge rod is hingedly connected to the clamping block; one end of the first hinge rod is hingedly connected to the end of the screw rod, and the other end of the first hinge rod is hingedly connected to a V-shaped opening end of the second hinge rod; the other V-shaped opening end of the second hinge rod is hingedly connected to the clamping block.

6. The automatic opening and closing control device for the inner and outer covers of an electric vehicle charging port according to claim 1, characterized in that: The power distribution base provides operating power for the automatic lifting column, the circumferential power motor, the jacking motor and the clamping motor.

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