Automatic charging device for electric automobile

Abstract

The utility model relates to an electric automobile charging device, in particular to an automatic charging device for an electric automobile, which comprises a charging plug and further comprises an up-down lifting device arranged on the ground; the horizontal moving device is arranged on the up-down lifting device; the angle adjusting device is arranged on the horizontal moving device; and the telescopic device is arranged on the angle adjusting device, is connected with the charging plug and is used for driving the charging plug to be inserted into a charging socket of the electric automobile. According to the automatic charging device for the electric automobile, position adjustment of the charging plug is achieved through the up-down lifting device, the horizontal moving device and the angle adjusting device, insertion of the charging plug is achieved through the telescopic device, the occupied space is small, the working space is small, the overall cost is low, and control is easy.

Description

Technical Field

[0001] This utility model relates to an electric vehicle charging device, and more particularly to an automatic electric vehicle charging device. Background Technology

[0002] Traditional electric vehicle charging involves manually plugging the charging plug into the vehicle's socket. However, the charging plug is heavy and inconvenient to use. To solve this problem, automatic insertion devices have emerged, such as the charging robot and charging method disclosed in Chinese patent CN107097678A, which uses a multi-axis robotic arm to insert the charging gun. This structure results in high cost and high space requirements, but in actual situations with dense parking spaces, there is no working space. Utility Model Content

[0003] To address the aforementioned issues of high cost and large installation and usage space requirements, this utility model provides an automatic charging device for electric vehicles, the specific technical solution of which is as follows:

[0004] An automatic charging device for electric vehicles includes a charging plug, and further includes: a lifting device on the ground; a horizontal moving device on the lifting device; an angle adjusting device on the horizontal moving device; and a telescopic device on the angle adjusting device and connected to the charging plug for inserting the charging plug into the charging socket of the electric vehicle.

[0005] Preferably, the lifting device includes a lifting linear module or a lifting electric cylinder; the horizontal moving device includes: a moving linear module disposed on the lifting device; and a moving base plate disposed on the moving linear module and connected to the angle adjustment device.

[0006] Preferably, the telescopic device includes: a telescopic seat with a telescopic groove and a guide groove communicating with the telescopic groove; a telescopic wheel rotatably disposed within the telescopic groove; a telescopic motor disposed on the telescopic seat and connected to the telescopic wheel; a telescopic steel belt movably disposed within the telescopic groove and the guide groove and wound around the telescopic wheel, one end of the telescopic steel belt being disposed on the telescopic wheel; and a telescopic rod with both ends connected to the telescopic seat and the charging plug, the telescopic rod including a plurality of telescopic sleeves sequentially sleeved to achieve axial extension and retraction; wherein the telescopic steel belt is also movably disposed within the telescopic rod, and the other end of the telescopic steel belt is connected to the end of the telescopic rod for pushing the telescopic rod to extend and retract.

[0007] Furthermore, the telescopic steel belt is an arc-shaped steel belt.

[0008] Furthermore, the telescopic sleeve is provided with a steel strip groove, and the telescopic steel strip is inserted into the steel strip groove.

[0009] Preferably, it further includes: an unlocking device, disposed on the charging plug, for disengaging the locking hook on the charging plug from the locking buckle on the charging socket.

[0010] Furthermore, the unlocking device includes: an unlocking drive assembly disposed on the charging plug; an unlocking slider disposed on the unlocking drive assembly and having a first pushing slope; and an unlocking push block disposed on the lock hook and having a second pushing slope disposed opposite to the first pushing slope; wherein, the unlocking drive assembly drives the unlocking slider to separate the lock hook from the latch through the first pushing slope and the second pushing slope.

[0011] Preferably, the charging plug is provided with a micro switch, which is disposed opposite to the locking hook and is used to detect the state of the locking hook.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The electric vehicle automatic charging device provided by this utility model realizes the position adjustment of the charging plug through the lifting device, the horizontal moving device and the angle adjustment device, and realizes the insertion of the charging plug through the telescopic device. It occupies little space and has a small working space, with low overall cost and simple control. Attached Figure Description

[0014] Figure 1 This is a stereoscopic view from the first perspective of this application;

[0015] Figure 2 This is a stereoscopic view from the second perspective of this application;

[0016] Figure 3 This is a side view of this application;

[0017] Figure 4 This is an assembly diagram of the horizontal movement device and the angle adjustment device;

[0018] Figure 5 It is a structural diagram of the telescopic device, showing it in the extended state;

[0019] Figure 6 yes Figure 5 A sectional view;

[0020] Figure 7 This is a schematic diagram of the telescopic device in the retracted state;

[0021] Figure 8 This is a structural diagram of the telescopic rod;

[0022] Figure 9 This is a schematic diagram of the charging plug.

[0023] Figure 10 This is a schematic diagram of the charging plug hidden in the outer casing.

[0024] Figure 11 This is an exploded view of the charging plug;

[0025] Figure 12 This is an assembly diagram of the locking hook and the unlocking push block;

[0026] Figure 13 This is a structural diagram of the unlocking driver component;

[0027] Figure 14 This is a schematic diagram of the structure of this application with an outer casing;

[0028] Figure 15 This is a schematic diagram illustrating the charging of an electric vehicle in a parking space, as described in this application. Detailed Implementation

[0029] The present invention will now be further described with reference to the accompanying drawings.

[0030] like Figures 1 to 15 As shown, an automatic charging device for electric vehicles includes a charging plug 5, a lifting device 1, a horizontal moving device 2, an angle adjusting device 3, and a telescopic device 4. The bottom of the lifting device 1 is fixed to the ground, and the top of the lifting device 1 is connected to the horizontal moving device 2. The horizontal moving device 2 is connected to the telescopic device 4 through the angle adjusting device 3. The top of the telescopic device 4 is connected to the charging plug 5, which is used to drive the charging plug 5 into the charging socket of the electric vehicle.

[0031] The vertical lifting device 1 and the horizontal moving device 2 enable height and left-right position adjustments, while the angle adjustment device 3 ensures that the charging plug 5 and the charging socket remain coaxial, suitable for partially tilted charging plugs 5. The telescopic device 4 inserts the charging plug 5 into the charging socket. When not charging, the charging plug 5 retracts back above the horizontal moving device 2 via the telescopic device 4, occupying little space and requiring minimal operating space.

[0032] The cost is greatly reduced by using a simple lifting device 1, a horizontal moving device 2, and a telescopic device 4 to plug and unplug the charging plug 5.

[0033] The vertical lifting device 1 includes a lifting linear module or a lifting electric cylinder. Using standard linear modules and electric cylinders can effectively reduce costs. The horizontal moving device 2 includes a moving linear module 21 and a moving base plate 22. The slide of the moving linear module 21 is mounted on the lifting seat of the vertical lifting device 1, and the moving base plate 22 is fixed to the moving linear module 21. The moving linear module 21 is used to adjust the position along the length of the electric vehicle. The linear module is a commercially available product and will not be described in detail here.

[0034] The angle adjustment device 3 includes a rotating frame 31, a rotating shaft 32, an adjusting seat 34, an adjusting screw 33, an adjusting nut, and an adjusting spring 35. The rotating frame 31 is mounted on the movable base plate 22 and connected to the rotating shaft 32, which is rotatably connected to the tail of the telescopic device 4. The adjusting seat 34 is mounted on the telescopic device 4 and has an adjusting groove 341, which can be an oblong groove along the length of the telescopic device 4. The adjusting screw 33 is threaded to the movable base plate 22 and its end is movably inserted into the adjusting groove 341. The adjusting nut is mounted on the top of the adjusting screw 33 and is located above the adjusting groove 341. The adjusting spring 35 is movably sleeved on the adjusting screw 33, with its two ends abutting against the bottom of the movable base plate 22 and the adjusting groove 341, respectively. Rotating the adjusting screw 33 can drive the telescopic device 4 to rotate along the rotating shaft 32, thereby making the charging plug 5 coaxial with the charging socket. A locking nut can also be installed on the adjusting screw 33. After the angle of the charging plug 5 is adjusted, rotating the locking nut will press it against the movable base plate 22 to prevent the angle of the charging plug 5 from changing. The angle adjustment device 3 can also be an angle adjustment electric cylinder.

[0035] The telescopic device 4 includes a telescopic base 41, a telescopic wheel 42, a telescopic motor 43, a telescopic steel belt 44, and a telescopic rod 45. The telescopic base 41 is rotatably mounted on a rotating shaft 32. The telescopic base 41 has a telescopic groove 411 and a guide groove 412 inside, with the guide groove 412 communicating with the telescopic groove 411. The telescopic motor 43 is fixed to the telescopic base 41, and its motor shaft is connected to the telescopic wheel 42 to drive the wheel 42 to rotate. The telescopic wheel 42 is movably located within the telescopic groove 411. One end of the telescopic steel belt 44 is fixed to the telescopic wheel 42 and wound around it. The telescopic rod 45 includes several telescopic sleeves 451 sequentially fitted to achieve axial extension and retraction. One end of the telescopic rod 45 is fixed to the telescopic base 41 and opposite to the guide groove 412, while the other end is connected to a charging plug 5. The telescopic steel belt 44 is also movably inserted into the telescopic rod 45, and the other end of the telescopic steel belt 44 is connected to the other end of the telescopic rod 45 to push the telescopic rod 45 to extend or retract.

[0036] The cross-section of the telescopic sleeve 451 can be circular, elliptical, polygonal, etc.

[0037] When the telescopic motor 43 rotates forward, the telescopic wheel 42 releases the telescopic steel belt 44. Under the action of the guide groove 412, the telescopic steel belt 44 extends towards the end of the telescopic rod 45, thereby driving the telescopic sleeve 451 to extend out, and the charging plug 5 at the end of the telescopic rod 45 is inserted into the charging socket.

[0038] The telescopic wheel 42, the telescopic motor 43, and the telescopic steel belt 44 form a winding structure, which enables the extension and retraction of the telescopic steel belt 44, and drives the extension and retraction of the telescopic rod 45 through the telescopic steel belt 44.

[0039] Because the telescopic steel belt 44 is wound around the telescopic wheel 42, it occupies little space, while the telescopic pole 45 can extend and retract so that it does not occupy the space around the parking space when not in use and does not affect the parking of cars.

[0040] To prevent the telescopic steel belt 44 from bending and to increase the jacking force, the telescopic steel belt 44 is an arc-shaped steel belt.

[0041] To further improve the stability of the telescopic steel band 44 and ensure it remains unidirectional and does not bend, a steel band groove 453 is provided inside the telescopic sleeve 451. The telescopic steel band 44 is inserted into the steel band groove 453. When the telescopic rod 45 extends, each telescopic sleeve 451 can support the telescopic steel band 44, thus ensuring that the telescopic steel band 44 is not easily bent during the entire extension stroke and maintains high strength to guarantee reliable push-out force, allowing the telescopic rod 45 to extend and retract smoothly. The steel band groove 453 is located on a fixed baffle 452, which is located at the end of the telescopic sleeve 451. This not only facilitates the fixing of the telescopic steel band 44 but also improves the strength of the telescopic sleeve 451.

[0042] A telescopic spring 34 is also provided between the telescopic base 41 and the rotating frame 31. The telescopic spring 34 is located on both sides of the telescopic base 41 and is movably inserted into the rotating shaft 32. The two ends of the telescopic spring 34 abut against the telescopic base 41 and the rotating frame 31 respectively, improving the fault tolerance of the charging plug 5 when it is inserted into the charging socket.

[0043] To improve the reliability of the connection between the charging plug 5 and the charging socket, a locking hook 51 is provided on the charging plug 5 and a locking buckle is provided on the charging socket. When the charging plug 5 is inserted into the charging socket and inserted into the set position, the locking hook 51 is engaged with the locking buckle. To facilitate the separation of the locking hook 51 and the locking buckle, an unlocking device 52 is also included. The unlocking device 52 is installed on the charging plug 5 and is arranged opposite to the locking hook 51, and is used to disengage the locking hook 51 on the charging plug 5 from the locking buckle on the charging socket. Specifically, the unlocking device 52 includes an unlocking drive assembly 521, an unlocking slider 522, and an unlocking push block 523. The unlocking drive assembly 521 is mounted on the charging plug 5 and connected to the unlocking slider 522. The unlocking slider 522 and the unlocking push block 523 are arranged opposite to each other. The unlocking push block 523 is arranged on the lock hook 51. The unlocking drive assembly 521 is located on the charging plug 5. The unlocking slider 522 has a first pushing inclined surface 525. The unlocking push block 523 has a second pushing inclined surface 524 that is arranged opposite to the first pushing inclined surface 525. The unlocking drive assembly 521 drives the unlocking slider 522 to separate the lock hook 51 from the latch through the first pushing inclined surface 525 and the second pushing inclined surface 524. The unlocking drive assembly 521 includes a lead screw motor 5211 and a lead screw nut 5212. The lead screw motor 5211 is fixed to the charging socket, and the lead screw nut 5212 is installed on the lead screw motor 5211 and connected to the unlocking slider 522. The unlocking slider 522 is slidably inserted into the slider groove 501 of the charging plug 5. When the lead screw motor 5211 rotates, it pushes the unlocking slider 522 to move. The unlocking slider 522 pushes the unlocking push block 523 through the second pushing inclined surface 524, causing the locking hook 51 to rotate downward, thereby separating the locking hook 51 from the latch, making it easy to pull out the charging plug 5. The tail of the locking hook 51 is rotatably mounted on the charging plug 5 via a shaft, and a locking spring is also provided between the tail of the locking hook 51 and the charging plug 5. The locking spring keeps the locking hook 51 in a downward pressed state, and can automatically push the locking hook 51 to lock onto the latch when it contacts the latch. The unlocking drive assembly 521 can also use an electromagnet to push the unlocking slider 522 to move.

[0044] To facilitate monitoring of the status of the locking hook 51, a micro switch 55 is provided inside the charging plug 5. The micro switch 55 is positioned opposite the locking hook 51 and is used to detect the status of the locking hook 51. When the charging plug 5 is inserted into the charging socket, the locking hook 51 engages with the latch when the charging plug 5 is in the set position. At this time, the locking hook 51 presses against the micro switch 55, and the micro switch 55 transmits a signal to the charger 6, indicating that the charging plug 5 has been successfully inserted and is ready for power supply. When preparing to remove the charging plug 5, the unlocking drive assembly 521 drives the unlocking slider 522 to push the unlocking push block 523. The unlocking push block 523 causes the locking hook 51 to lift up, moving the locking hook 51 away from the micro switch 55. The telescopic device 4 then pulls the charging plug 5 out.

[0045] The charger 6 is equipped with a button 61, which is used to start the automatic charging device.

[0046] Depending on the electric vehicle model, the lifting device 1 raises and lowers the charging plug 5 to a height that matches the charging socket on the electric vehicle. Then, the horizontal moving device 2 moves the charging plug 5 to a position where it is coaxial with the charging socket. If the charging socket is at an angle, the adjusting screw 33 is rotated so that the charging plug 5 rotates to coincide with the axis of the charging socket. Then, the telescopic device 4 is activated, and the telescopic device 4 moves the charging plug 5 into the charging socket.

[0047] To facilitate automatic insertion and further improve its accuracy, a camera 91 is installed on the charging plug 5. The camera 91 drives the lifting device 1 and the horizontal movement device 2 to automatically align the charging plug 5 with the charging socket. An LED bead 92 is also installed on the charging plug 5 to provide supplementary lighting for the camera 91. After the electric vehicle is parked in the parking space, the charging cover is manually opened, and the charging device is started via button 61 on the controller 6. The camera 91 detects the position of the charging socket and, based on this position, controls the lifting device 1 and the horizontal movement device 2 to move the charging plug 5 to a position coaxial with the charging socket. Then, the telescopic device 4 is activated, precisely inserting the charging plug 5 into the charging socket. This solves the problem of inconsistent charging socket positions due to different parking locations, making it suitable for charging fixed vehicles. Because it is designed for charging fixed vehicles, once the angle adjustment device is adjusted, the angle of the charging plug 5 does not need to be readjusted during automatic charging.

[0048] To facilitate the movement of the charging cable 7, the rotating frame 31 is also equipped with rollers 8, on which the charging cable 7 is located. The charging cable 7 is movably inserted into the telescopic rod 45 and is inserted into the interior of the telescopic rod 45 through the cable hole 40 of the telescopic base 41. One end of the charging cable 7 is connected to the charging plug 5, and the other end is connected to the charger 6.

[0049] When charging different electric vehicles, the camera 91 controls the lifting device 1, the horizontal movement device 2, and the angle adjustment device 3 to automatically adjust the position of the charging plug 5 so that it is coaxial with the charging socket on the electric vehicle. The angle adjustment device 3 uses an electric cylinder, with its two ends hinged to the adjustment seat 34 and the movable base plate 22, respectively. This method is only suitable for situations where the charging sockets of the electric vehicles have small positional differences and are located on the same side of the vehicle. It cannot be used when the charging sockets have large positional differences or are not on the same side.

[0050] To protect the automatic charging device and improve waterproofing, an outer casing 81 and a movable cover 82 are also included. The outer casing 81 is fixed to the movable base plate 22, and the movable cover 82 is rotatably mounted on the outer casing 81 and is positioned opposite to the charging socket of the outer casing 81. It is used to close the charging socket when the charging plug 5 is retracted. When the charging plug 5 is extended for charging, it can automatically open the movable cover 82.

[0051] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. An automatic charging device for electric vehicles, comprising a charging plug (5), characterized in that, Also includes: A lifting device (1) is installed on the ground; A horizontal moving device (2) is provided on the vertical lifting device (1); An angle adjustment device (3) is provided on the horizontal moving device (2); as well as The telescopic device (4) is provided on the angle adjustment device (3) and connected to the charging plug (5) for driving the charging plug (5) to be inserted into the charging socket of the electric vehicle.

2. The automatic charging device for electric vehicle according to claim 1, wherein The lifting device (1) includes a lifting linear module or a lifting electric cylinder; The horizontal moving device (2) includes: A linear motion module (21) is mounted on the lifting device (1); and The movable base plate (22) is mounted on the movable linear module (21) and connected to the angle adjustment device (3).

3. The automatic charging device for electric vehicle according to claim 1, wherein The angle adjustment device (3) includes: A rotating frame (31) is mounted on the horizontal moving device (2); A rotating shaft (32) is mounted on the rotating frame (31) and is rotatably connected to the telescopic device (4); An adjustment seat (34) is provided on the telescopic device (4) and is provided with an adjustment groove (341); An adjusting screw (33) is mounted on the horizontal moving device (2) and is movably connected to the adjusting groove (341); An adjusting nut is located at the top of the adjusting screw (33) and above the adjusting groove (341); and An adjusting spring (35) is movably sleeved on the adjusting screw (33), and its two ends are respectively connected to the horizontal moving device (2) and the adjusting groove (341).

4. The automatic charging device for electric vehicle according to claim 1, wherein Also includes: A camera (91) is mounted on the charging plug (5).

5. The automatic charging device for electric vehicle according to claim 1, wherein The telescopic device (4) includes: The telescopic seat (41) is provided with a telescopic groove (411) and a guide groove (412) communicating with the telescopic groove (411); Telescopic wheel (42) is rotatably disposed within the telescopic groove (411); A telescopic motor (43) is mounted on the telescopic seat (41) and connected to the telescopic wheel (42); A telescopic steel belt (44) is movably disposed within the telescopic groove (411) and the guide groove (412) and is wound around the telescopic wheel (42), with one end of the telescopic steel belt (44) disposed on the telescopic wheel (42); The telescopic rod (45) is connected at both ends to the telescopic seat (41) and the charging plug (5) respectively. The telescopic rod (45) includes a plurality of telescopic sleeves (451) that are sequentially sleeved to achieve axial extension and retraction. The telescopic steel belt (44) is also movably disposed inside the telescopic rod (45), and the other end of the telescopic steel belt (44) is connected to the end of the telescopic rod (45) for pushing the telescopic rod (45) to extend or retract.

6. The automatic charging device for electric vehicle according to claim 5, wherein The telescopic steel strip (44) is an arc-shaped steel strip.

7. The automatic charging device for electric vehicle according to claim 5 or 6, wherein The telescopic sleeve (451) is provided with a steel strip groove (453), and the telescopic steel strip (44) is inserted into the steel strip groove (453).

8. The automatic electric vehicle charging device of claim 1, wherein, Also includes: An unlocking device (52) is provided on the charging plug (5) for disengaging the locking hook (51) on the charging plug (5) from the locking buckle on the charging socket.

9. The automatic electric vehicle charging device of claim 8, wherein, The unlocking device (52) includes: Unlocking drive component (521) is provided on the charging plug (5); An unlocking slider (522) is disposed on the unlocking drive assembly (521) and has a first pushing inclined surface (525); and An unlocking push block (523) is provided on the lock hook (51), and a second pushing inclined surface (524) is provided opposite to the first pushing inclined surface (525); The unlocking drive component (521) drives the unlocking slider (522) to separate the lock hook (51) from the latch via the first pushing inclined surface (525) and the second pushing inclined surface (524).

10. The automatic charging device for electric vehicle according to claim 8, wherein The charging plug (5) is equipped with a micro switch (55), which is arranged opposite to the locking hook (51) and is used to detect the state of the locking hook (51).

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