Automatic charging pile and automatic charging device with the same

Abstract

The utility model relates to the field of automobile charging, especially to an automatic charging pile and an automatic charging device with the automatic charging pile. The automatic charging pile comprises a charging head for plugging an electric vehicle power receiving port, the charging head is provided with a charging contact at the front end, the charging head is provided with a guide piece at the side of the charging contact at the front end, the front end of the guide piece is in front of the charging contact, and the guide piece is axially extruded by the power receiving port to automatically move radially along the inner wall of the horn guide port of the power receiving port to guide the charging head radially to the power receiving port for plugging. The electric vehicle moves to allow the power receiving port to charge the charging head on the automatic charging pile, and the charging head on the charging pile is not easy to be damaged.

Description

Technical Field

[0001] This utility model relates to the field of automobile charging, and in particular to an automatic charging pile and an automatic charging device having the automatic charging pile. Background Technology

[0002] Automatic parking for electric vehicles involves precisely aligning the charging port with the charging head on the charging station for automatic charging. However, the positioning accuracy of current automatic parking systems for electric vehicles is relatively poor. To address this, the electric vehicle's charging port is equipped with a horn-shaped guide opening that gradually widens outwards. The electric vehicle automatically drives to the charging station, initially aligning its charging port with the charging head. Then, it moves axially closer to the charging head on the station, causing the tip of the charging head to slide along the inner wall of the horn-shaped guide opening until it is fully inserted. The disadvantage of this method is that the tip of the charging head is easily damaged by the pressure and friction from the inner wall of the horn-shaped guide opening. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automatic charging pile and an automatic charging device with the automatic charging pile, so that the electric vehicle moves to allow its power receiving port to charge the charging head on the automatic charging pile, and the charging head on the charging pile itself is not easily damaged.

[0004] To solve the above problems, this utility model provides an automatic charging pile, including a charging head for plugging into the power receiving port of an electric vehicle. The charging head has a charging contact at its front end and a guide member at the front end of the charging head next to the charging contact. The front end of the guide member is ahead of the charging contact. The guide member is axially pressed by the power receiving port and automatically moves radially along the inner wall of the horn guide opening on the power receiving port, thereby guiding the charging head radially to be aligned with the power receiving port for insertion.

[0005] Furthermore, the guide component is specifically a guide wheel installed at the front end of the charging head, and the radial movement of the guide component along the inner wall of the horn-shaped guide opening on the power receiving port is specifically rolling.

[0006] Furthermore, the charging head includes a hollow charging head support rod, with charging contacts and guide wheels mounted side by side and fixed to the front end of the charging head support rod.

[0007] Furthermore, there are multiple guide wheels, at least one of which is a horizontal left-right guide wheel and / or at least one is a vertical up-down guide wheel.

[0008] Furthermore, the base frame has a radially arranged slide rail installed on its upper front side, and a slider is slidably installed on the slide rail. Radial return springs are provided at both ends of the slider. The rear end of the charging head support rod is installed on the slider. When the guide at the front end of the charging head support rod moves radially along the inner wall of the horn guide opening on the power receiving port, the charging head support rod moves radially along the slide rail by squeezing the radial return spring through the slider.

[0009] Furthermore, it includes a first mounting plate with bolt holes; bolts are provided to mount the rear end of the charging head support rod onto the first mounting plate, the bolt diameter is smaller than the bolt holes on the first mounting plate, and it can be radially offset in the bolt holes to cause the charging head to swing slightly radially.

[0010] Furthermore, including the base frame, the rear end of the charging head support rod is installed on the front side of the base frame; the front side of the base frame has multiple threaded holes arranged vertically, and the rear end of the charging head support rod can be installed in any one of the threaded holes.

[0011] Furthermore, this includes an axial buffer spring mounted on the charging head.

[0012] Furthermore, the axial buffer spring is specifically installed at the rear end of the charging head.

[0013] This utility model also provides an automatic charging device, including an automatic charging pile and a horn guide for installation on the power receiving port of an electric vehicle. The automatic charging pile is provided with a charging head for plugging into the power receiving port of the electric vehicle. The automatic charging pile is specifically as described above.

[0014] Beneficial effects: When an electric vehicle approaches an automatic charging station, its power receiving port is initially aligned with the charging head. The vehicle then moves, bringing its power receiving port axially closer to the charging head. The inner wall of the horn-shaped guide opening on the power receiving port axially presses against the guide component at the front of the charging head, causing the guide component to automatically move radially along the inner wall of the horn-shaped guide opening, guiding the charging head radially until it is aligned with the power receiving port for insertion and charging. Because the charging head is compressed and rubbed against the inner wall of the horn-shaped guide opening by the guide component, it is less prone to damage. Attached Figure Description

[0015] Figure 1 This is a simplified structural diagram of an automatic charging device.

[0016] Figure 2 This is a simplified structural diagram of an automatic charging station.

[0017] Figure 3 This is a simplified side view of the automatic charging device.

[0018] Symbol explanation:

[0019] 1-Charging head; 2-Power receiving port; 3-Base frame; 4-Mounting bracket; 5-First mounting plate; 6-Second mounting plate; 7-Charging head support rod; 8-Bolt; 9-Charging contact; 10-Automatic charging pile; 11-Guide component; 12-Slide rail; 13-Radial return spring; 14-Axial buffer spring; 21-Flare guide port; 31-Support column; 32-Threaded hole; 41-Mounting block; 51-Through hole; 111-Left and right guide wheels; 112-Upper and lower guide wheels; 121-Slider. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments.

[0021] Automatic charging devices such as Figure 1 As shown, it includes an automatic charging station 10 and a horn-shaped guide port 21 installed on the power receiving port 2 of an electric vehicle. The automatic charging station 10 has a charging head 1 on its front side; the electric vehicle can be charged by connecting its power receiving port 2 to the charging head 1 of the automatic charging station 10. The automatic charging station 10 is as follows... Figure 2 As shown, a mounting bracket 4 is installed on the upper front side of the base frame 3. Upper and lower horizontal sliding rails 12 are installed on the upper and lower sides of the mounting bracket 4, respectively. Sliding sliders 121 are slidably mounted on both upper and lower sliding rails 12. Radial return springs 13 are installed at both the left and right ends of the sliding sliders 121, which are held in the center of the sliding rails 12 by the elastic force of the radial return springs 13 on both sides. The upper and lower sides of the back of the first mounting plate 5 are connected to the front sides of the upper and lower sliding sliders 121, respectively, and a through hole 51 is opened in the center. The charging head support rod 7 is mounted on the first mounting plate 5, located directly in front of the through hole 51. The charging head support rod 7 is hollow inside, and a charging contact 9 is fixedly installed at its front end. The charging head support rod 7 and the charging contact 9 together constitute the charging head 1. Five guide wheels 11 are mounted on the upper and lower sides of the charging contact 9 at the front end of the charging head support rod 7. The front guide wheel 11 is positioned further forward than the charging contact 9. The left and right guide wheels 11 are horizontally positioned left and right guide wheels 111, and the center guide wheel 11 is vertically positioned up and down guide wheels 112. A flange extends radially outward from the rear end of the charging head support rod 7 to form a second mounting plate 6. The first mounting plate 5 and the second mounting plate 6 are connected by bolts 8 (see...). Figure 3 The charging head support rod 7, along with its front charging contact 9 and rear second mounting plate 6, are connected by a bolt pair. The diameter of the bolt 8 is smaller than the bolt hole on the first mounting plate 5 (not shown in the attached figure), allowing it to offset radially within the bolt hole, causing the charging head support rod 7, along with its front charging contact 9 and rear second mounting plate 6, to swing slightly radially within a range of 10 mm. An axial buffer spring 14 is fitted on the outside of the bolt, and the tightness can be adjusted by adjusting the relative position of the nut and the bolt 8. A charging cable (not shown in the attached figure) is connected to the rear side of the charging contact 9. The charging cable passes through the inside of the charging head support rod 7, through the through hole 51, and then connects to the power supply (not shown in the attached figure) housed on the rear side of the base frame 1 for power extraction.

[0022] The electric vehicle first drives to the automatic charging station 10, aligning its power receiving port 2 with the charging head 1. Then, it moves further, bringing its power receiving port 2 axially closer to the charging head 1. The guide wheel 11 at the front end of the charging head 1 acts as a guide, axially pressed by the inner wall of the horn-shaped guide opening 21 on the power receiving port 2. It automatically rolls radially along the inner wall of the horn-shaped guide opening 21, guiding the charging head 1 radially until it is aligned with the power receiving port for insertion and charging. During this process, on one hand, the axial buffer spring 14 at the rear end of the charging head support rod 7 is axially compressed by the axial pressure from the inner wall of the horn-shaped guide opening 21, providing axial buffering and preventing the charging head 1 from deforming and being damaged due to axial compression. On the other hand, the charging head support rod 7 is driven by the bolt 8 to slightly oscillate radially. The slider 121 presses the radial return spring 13, which moves left and right along the slide rail 12, achieving radial left and right movement. This prevents the charging head support rod 7 from deforming and being damaged due to asynchronous radial displacement with the guide wheel 11. The radial return spring 13 can elastically deform 100mm along its own axis under the pressure of the slider 121, thus allowing the charging head 1 to move 100mm to the left and right respectively. After the car is fully charged and drives away from the automatic charging station 10, the charging head support rod 7 automatically resets under the elastic force of the radial return spring 13 and the axial buffer spring 14. Because the charging head is pressed and rolled against the inner wall of the horn guide opening 21 by the guide wheel 11, it is not easily damaged.

[0023] See Figure 3 The mounting bracket 4 extends rearward with a mounting block 41. The mounting bracket 4 is installed on the upper front side of the base frame 1. Specifically, the mounting block 41 is fixed to the upper part of the support column 31 on the front side of the base frame 1 with screws. The upper part of the support column 31 has multiple threaded holes 32 arranged vertically. The height difference between the uppermost and lowermost threaded holes 32 is 30mm. The mounting block 41 can be installed in any of the threaded holes 32 to adapt the charging head 1 to the height of the power receiving port of different vehicle models.

[0024] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. An automatic charging pile, comprising a charging head (1) for plugging into a power receiving port (2) of an electric vehicle, wherein the front end of the charging head (1) is provided with a charging contact (9), characterized in that: The front end of the charging head (1) is provided with a guide on the side of the charging contact (9). The front end of the guide is ahead of the charging contact (9). The guide is axially squeezed by the power receiving port (2) and automatically moves radially along the inner wall of the horn guide port (21) on the power receiving port (2), thereby guiding the charging head (1) radially to be aligned with the power receiving port (2) for insertion.

2. The automatic charging pile as described in claim 1, characterized in that: The guide is specifically a guide wheel (11) installed at the front end of the charging head (1), and the guide moves radially along the inner wall of the horn guide port (21) on the power receiving port (2), specifically by rolling.

3. The automatic charging pile as described in claim 2, characterized in that: The charging head (1) includes a hollow charging head support rod (7), a charging contact (9) and a guide wheel (11) which are installed and fixed side by side at the front end of the charging head support rod (7).

4. The automatic charging pile as described in claim 3, characterized in that: There are multiple guide wheels (11), at least one of which is a horizontal left and right guide wheel (111) and / or at least one is a vertical upper and lower guide wheel (112).

5. The automatic charging pile as described in claim 3, characterized in that: The base frame (3) has a radially arranged slide rail (12) installed on its upper front side. A slider (121) is slidably installed on the slide rail. Radial return springs (13) are provided at both ends of the slider (121). The rear end of the charging head support rod (7) is installed on the slider (121). When the guide at the front end of the charging head support rod (7) moves radially along the inner wall of the horn guide port (21) on the power receiving port (2), the charging head support rod (7) will press the radial return spring (13) through the slider (121) and move radially along the slide rail (12).

6. The automatic charging pile as described in claim 3, characterized in that: Includes a first mounting plate (5), on which bolt holes are opened; a bolt (8) is provided to install the rear end of the charging head support rod (7) onto the first mounting plate (5). The diameter of the bolt (8) is smaller than that of the bolt hole on the first mounting plate (5), and it can be radially offset in the bolt hole to drive the charging head (1) to swing slightly radially.

7. The automatic charging pile as described in claim 3, characterized in that: Includes a base frame (3), and the rear end of the charging head support rod (7) is installed on the front side of the base frame (3); multiple threaded holes (32) are arranged vertically on the front side of the base frame (3), and the rear end of the charging head support rod (7) can be installed in any one of the threaded holes (32).

8. The automatic charging pile as described in claim 1, characterized in that: Includes an axial buffer spring (14) mounted on the charging head (1).

9. The automatic charging pile as described in claim 8, characterized in that: The axial buffer spring (14) is specifically installed at the rear end of the charging head (1).

10. An automatic charging device, comprising an automatic charging pile (10) and a horn guide port (21) for mounting onto a power receiving port (2) of an electric vehicle, wherein the automatic charging pile (10) is provided with a charging head (1) for plugging into the power receiving port (2) of the electric vehicle, characterized in that: The automatic charging station (10) is specifically as described in any one of claims 1 to 9.

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