Peripheral component of charging gun and automatic charging system

Abstract

The invention provides a charging gun peripheral component (1) and an automatic charging system. The charging gun peripheral component (1) comprises a fixing part (2) and a connecting part (3), wherein the fixing part (2) can be fixed on a charging gun (4); and the holding part (3) is connected with the fixing part (2) and is arranged to be in a shape capable of being grabbed by a mechanical arm (5). The charging gun peripheral component (1) can be fixed on the existing charging gun (4) through the fixing part (2), and the charging gun peripheral component (1) is provided with the holding part (3) which is connected with the fixing part (2) and can be grabbed by the mechanical arm (5), so that only the charging gun peripheral component (1) with the same holding part (3) needs to be assembled aiming at the existing charging guns (4) with various shapes and specifications; therefore, the object to be grabbed by the mechanical arm (5) can be set to be the holding part (3) with the same shape, and the charging gun (4) can be grabbed by the universal mechanical arm (5).

Description

Technical Field

[0001] The present invention relates to a charging gun peripheral component that can be assembled to a charging gun and an automatic charging system. Background Art

[0002] In the prior art, there are charging stations for charging vehicles. These charging stations are equipped with charging guns of different shapes and sizes according to different brands or specifications.

[0003] When a person manually operates a charging gun to charge a vehicle, even for charging guns of different shapes and sizes, there will be no operational problems. However, with the development of robot technology, it is desired to equip existing charging stations with robotic arms to operate the charging guns to automatically charge vehicles. In this case, it is difficult for the robotic arm to identify and grasp charging guns of different shapes and sizes. Therefore, different robotic arms need to be equipped for charging guns of different shapes and sizes, which will result in higher costs. Summary of the Invention

[0004] Technical Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a charging gun peripheral component that can be assembled to existing charging guns of various shapes and specifications and can be identified and grasped by a robotic arm.

[0006] Solutions to Solve the Technical Problems

[0007] The present invention provides a charging gun peripheral component, including: a fixing part that can be fixed to a charging gun; and a holding part that is connected to the fixing part and is configured in a shape that can be grasped by a robotic arm.

[0008] The charging gun peripheral component of this embodiment can be fixed to an existing charging gun through the fixing part, and the charging gun peripheral component has a holding part that is connected to the fixing part and is configured in a shape that can be grasped by a robotic arm. Therefore, only by assembling charging gun peripheral components with the same-shaped holding parts to existing charging guns of various shapes and specifications, the grasping object of the robotic arm can be set as the holding parts of the same shape, and a common robotic arm can be used to grasp the charging gun.

[0009] In the above charging gun peripheral component, preferably, the fixing part is a ring-shaped part whose inner surface shape matches the outer surface shape of the charging gun.

[0010] Thereby, the fixing part can be conveniently fixed to the charging gun.

[0011] In the above charging gun peripheral component, preferably, the fixing part includes a main body part and a deformable flexible part. The main body part is ring-shaped, and the flexible part is arranged inside the main body part.

[0012] Since the flexible part can be deformed, when the fixed part is assembled to the handle, by deforming the flexible part, it can adapt to handles of different shapes and sizes. Thus, by providing the flexible part, the charging gun peripheral components (fixed part) of the same specification size can be assembled to charging guns of different shapes and sizes, improving the versatility.

[0013] In the above-mentioned charging gun peripheral components, preferably, the fixed part is provided with a notch, the size of the notch is smaller than the diameter of the installation part of the charging gun, and the fixed part can elastically deform in a way that the notch expands.

[0014] Thus, the operation of assembling the charging gun peripheral components relative to the charging gun is relatively simple.

[0015] In the above-mentioned charging gun peripheral components, preferably, the fixed part is a flexible belt, the fixed part extends from both sides of the holding part and can lock the two free ends through a locking mechanism to form a ring.

[0016] Since the fixed part is a flexible belt, no matter what shape and specification the handle is, the inner surface of the fixed part can be closely attached to the outer surface of the handle. Therefore, even when assembling charging gun peripheral components to charging guns of different specifications and shapes, only one specification of charging gun peripheral components needs to be prepared.

[0017] In the above-mentioned charging gun peripheral components, preferably, the holding part includes a vertical rod part connected to the fixed part and a horizontal rod part, and the horizontal rod part is connected to the end of the vertical rod part far from the fixed part.

[0018] By making the fixed part include a vertical rod part and a horizontal rod part, and the horizontal rod part is arranged at a certain interval from the handle, a space for human hand to grasp can be formed between the horizontal rod part and the handle, that is, while using the horizontal rod part as the grasping object of the robotic arm, the horizontal rod part is also suitable for being grasped by the human hand. Thus, the charging gun assembled with the charging gun peripheral components of the present invention can be automatically charged by the robotic arm and can also be conveniently charged manually.

[0019] In the above-mentioned charging gun peripheral components, preferably, on the side of the horizontal rod part close to the charging gun, there is a corrugated surface composed of continuous grooves and protrusions, and the size of the grooves corresponds to the size of human fingers.

[0020] Thus, the horizontal rod part can be made suitable for human hand holding.

[0021] The present invention also provides an automatic charging system, including: a charging gun, which is connected to a power source; external components of the charging gun, which can be assembled on the charging gun; and a robotic arm, which has two arm components that can move relative to each other, and the arm components can grip the external components of the charging gun by relative movement. The external components of the charging gun include: a fixing part, which can be fixed to the charging gun; and a gripping part, which is connected to the fixing part and is arranged in a shape that can be grasped by the robotic arm.

[0022] Thus, it is possible to conveniently transform various existing charging guns. By fixing the above-mentioned external components of the charging gun to various charging guns with existing specifications, shapes, and sizes, and the external components of the charging gun have a gripping part that is connected to the fixing part and can be grasped by the robotic arm. Therefore, only by assembling the external components of the charging gun with the same-shaped gripping part for various existing charging guns with different shapes and specifications, the gripping object of the robotic arm can be set as the gripping part with the same shape, and a general robotic arm can be used to grasp the charging gun.

[0023] In the above automatic charging system, preferably, holes are provided in the gripping part, and protrusions corresponding to the holes are provided on the arm components.

[0024] Thus, when the two arm components move towards each other to grip the gripping part, the protrusions provided on the arm components are inserted into the holes of the gripping part, thereby achieving precise positioning, and the gripping of the gripping part by the arm components is more firm.

[0025] In the above automatic charging system, preferably, a plurality of the holes are provided in the gripping part, and a plurality of the protrusions are provided on the arm components, and the distances between the holes are the same as the distances between the protrusions.

[0026] By providing a plurality of holes and protrusions, the robotic arm can grip more firmly. Moreover, compared with the case of only providing one hole and one protrusion, the situation where the charging gun rotates around the position where one hole and one protrusion are engaged can be prevented. Description of the Drawings

[0027] Figure 1 is a schematic diagram of the state where the external components of the charging gun of the present invention are assembled on the charging gun;

[0028] Figure 2 is a schematic diagram of the robotic arm of the automatic charging system of the present invention;

[0029] Figure 3 is a cross-sectional view of the external components of the charging gun in an embodiment, showing the case where a notch is provided in the fixing part;

[0030] Figure 4It is a cross-sectional view of a peripheral component of a charging gun according to another embodiment, showing a case where the fixing part is a flexible band. Detailed implementation mode

[0031] The exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. Various details of the embodiments of the present invention are included to facilitate understanding, and they should be considered merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, descriptions of well-known functions and structures are omitted in the following description for clarity and conciseness.

[0032] It should be noted that, without conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0033] The vehicle involved in the embodiments of the present invention can be a hybrid vehicle with an engine and an electric motor as power sources, an electric vehicle with an electric motor as a power source, etc.

[0034] As Figure 1 shown, the peripheral component 1 of the charging gun of the present invention includes a fixing part 2 and a holding part 3. The fixing part 2 is the part of the peripheral component 1 of the charging gun for fixing to the charging gun 4, and the holding part 3 is the part of the peripheral component 1 of the charging gun for being grasped by the robotic arm 5. The holding part 3 is connected to the fixing part 2 and is arranged in a shape that can be grasped by the robotic arm 5. The holding part 3 and the fixing part 2 are integrally formed using a resin material to form the peripheral component 1 of the charging gun, for example.

[0035] The charging gun 4 includes a charging port 41 and a handle 42. When manually using the charging gun 4 for charging, the handle 42 is held by a human hand to insert the charging port 41 of the charging gun into the charging socket of the vehicle. The shape of the handle 42 varies according to the brand and specifications of the charging gun 4, for example, the thickness is different or the surface shape is different, etc.

[0036] When charging manually, since it is operated by a human hand, it can automatically adapt to the thickness or surface shape of the handle 42. However, in the case of realizing automatic charging using the robotic arm 5, it is difficult for the robotic arm 5 to grasp the handles 42 of charging guns 4 with different shapes and specifications. Therefore, different specifications of robotic arms 5 need to be prepared for different charging guns 4, resulting in a high cost.

[0037] The charging gun peripheral component 1 of this embodiment can be fixed to an existing charging gun 4 through the fixing part 2, and the charging gun peripheral component 1 has a holding part 3 connected to the fixing part 2 and capable of being grasped by a robotic arm 5. Therefore, only by assembling the charging gun peripheral component 1 with the same holding part 3 for various existing charging guns 4 with different shape specifications, the grasping object of the robotic arm 5 can be set as the holding part 3 with the same shape, and the charging gun 4 can be grasped by a general robotic arm 5.

[0038] Specifically, even for charging guns 4 with different shapes, as long as the charging gun peripheral component 1 with a fixing part 2 of a different shape (a shape corresponding to the handle 42) is assembled relative to the charging gun 4, a holding part 3 with the same shape can be assembled on the charging gun 4, thus facilitating the grasping by the robotic arm 5.

[0039] As Figure 4 shown, the fixing part 2 is, for example, a ring shape whose inner surface 21 matches the shape of the outer surface 43 of the charging gun 4. When the charging gun peripheral component 1 is assembled to the handle 42 of the charging gun 4, the shape of the inner surface 21 of the fixing part 2 corresponds to the shape of the outer surface 43 of the handle 42.

[0040] However, the fixing position of the fixing part 2 is not limited to the handle 42. As long as it is a part where the charging gun peripheral component 1 can be assembled to the charging gun 4, it can be used for the fixing part 2 to be fixed. In this case, the part of the charging gun 4 for the fixing part 2 to be fixed is called the "installation part".

[0041] Thus, the fixing part 2 can be conveniently fixed to the charging gun 4.

[0042] The fixing part 2 can be a circular ring or a notched circular ring.

[0043] As Figure 3 shown, when the fixing part 2 is a notched circular ring, a notch 27 is provided on the side of the fixing part 2 opposite to the holding part 3, and the size of the notch 27 is smaller than the diameter of the handle 42 (or the installation part other than the handle 42) of the charging gun 4.

[0044] When assembling the charging gun peripheral component 1 (fixing part 2) to the charging gun 4, only need to apply force in a way that the notch 27 aligns with the handle 42 of the charging gun 4. Thus, the parts on both sides of the notch 27 of the fixing part 2 are deformed in a way that the notch 27 becomes larger, so that the handle 42 enters the circular ring interior of the fixing part 2. After the handle 42 is clamped inside the fixing part 2, the deformation of the fixing part 2 is eliminated, thus locking the handle 42 inside the fixing part 2. Thus, the operation of assembling the charging gun peripheral component 1 relative to the charging gun 4 is relatively simple.

[0045] As Figure 3As shown, when the fixing part 2 is a notched ring, it may include a flexible part 24 provided on the inner side. That is, the fixing part 2 may include a main body part 23 and a deformable flexible part 24. The main body part 23 is ring-shaped, and the flexible part 24 is provided on the inner side of the main body part 23 and contacts the handle 42 of the charging gun 4.

[0046] Since the flexible part 24 can deform, when the fixing part 2 is assembled to the handle 42, it can adapt to handles 42 of different shapes and sizes. Thus, by providing the flexible part 24, the charging gun peripheral component 1 (fixing part 2) of the same specification size can be assembled to charging guns 4 of different shapes and sizes, which can improve the versatility.

[0047] In addition, when the fixing part 2 is a notched ring, even if the flexible part 24 is not provided, since the fixing part 2 can elastically deform in a way that the notch 27 expands, even for charging guns 42 with slightly different sizes, the fixing part 2 of the same shape can be used for assembly. Therefore, only a small number of charging gun peripheral components 1 of different specifications need to be prepared to handle a large number of charging guns 4 of different specifications, which can improve the versatility of the charging gun peripheral component 1.

[0048] In addition, when the fixing part 2 is a ring (such as a circular ring), for example, the fixing part 2 includes two half-ring parts. Among them, one half-ring part is integrally formed with the holding part 3, and the other half-ring part can be clamped with the one half-ring part to form a ring.

[0049] Thus, when assembling the charging gun peripheral component 1 (fixing part 2) to the charging gun 4, first pre-assemble one half-ring part (the half-ring part integrally formed with the holding part 3) with its inner surface attached to the handle 42 of the charging gun 4, and then clamp the other ring part with the one ring part to clamp the handle 42 and engage and lock the other ring part with the one ring part, thereby forming the ring-shaped fixing part 2 and assembling the charging gun peripheral component 1 (fixing part 2) to the handle 42 of the charging gun.

[0050] The specific structure of the engagement between one ring part and the other ring part can be, for example: engagement concave parts are provided at both circumferential ends of one ring part, and engagement convex parts are provided at both circumferential ends of the other ring part. By inserting the engagement convex parts at both ends of the other ring part into the engagement concave parts at both ends of one ring part, the one ring part and the other ring part are engaged and locked.

[0051] In this case, the fixing part 2 may also include a flexible part 24 arranged on the inner side. That is, the fixing part 2 may include a main body part 23 and a deformable flexible part 24. The main body part 23 is annular, and the flexible part 24 is arranged on the inner side of the main body part 23 and contacts the handle 42 of the charging gun 4. Since the flexible part 24 can deform, when the fixing part 2 is assembled to the handle 42, it can adapt to handles 42 of different shapes and sizes. Thus, by arranging the flexible part 24, the charging gun peripheral component 1 (fixing part 2) of the same specification size can be assembled to charging guns 4 of different shapes and sizes, improving the versatility.

[0052] As another modification example, as Figure 4 shown, a flexible band can be directly used as the fixing part 2, and the fixing part 2 in the form of a flexible band extends from both sides of the holding part 3. When the fixing part 2 is fixed to the handle 42 of the charging gun, the fixing part 2 can be directly attached to any charging gun 4 of any shape and size. The fixing part 2 clamps the charging gun 4 in the middle and locks it using the locking mechanism 28, thus completing the assembly of the charging gun peripheral component 1 relative to the charging gun 4.

[0053] Since the fixing part 2 is a flexible band, no matter what shape and specification the handle 24 is, the inner surface 21 of the fixing part 2 can be tightly attached to the outer surface 42 of the handle 24. Therefore, even when it is necessary to assemble the charging gun peripheral component 1 to charging guns 4 of different specifications and shapes, only one specification of the charging gun peripheral component 1 needs to be prepared.

[0054] As Figure 4 shown, holes are provided at both ends of the fixing part 2 in the form of a flexible band. When the fixing part 2 surrounds the charging gun 4 (handle 42), the two ends of the fixing part 2 overlap. A screw is inserted through the holes provided at both ends of the fixing part 2 and fixed with a nut, thereby realizing the fixation of the fixing part 2. That is, the locking mechanism 28 may include the holes provided at both ends of the fixing part 2, the screw, and the nut.

[0055] In addition, although the flexible part 24 is not shown in Figure 4 , even for the fixing part 2 in the form of a flexible band, it may include a main body part 23 and a flexible part 24, and its technical effects will not be repeated.

[0056] In addition, although in Figure 4The situation where the two free ends of the fixing portion 2 in the form of a flexible belt are locked by the locking mechanism 28 composed of holes, screws, and nuts is shown, but the locking mechanism 28 can also be in the form of tying or welding the two free ends of the fixing portion 2 in the form of a flexible belt. By making the locking member 28 in the form of tying or welding, it is possible to cope with charging guns 4 (handles 42) of various diameters and shapes. That is, even if the diameters and shapes of the handles 42 (or other mounting parts other than the handles 42) of the charging guns 4 are different, it is only necessary to change the tying or welding parts.

[0057] In addition, as Figure 1 shown, two fixing portions 2 are provided in the charging gun peripheral component 1, and the two fixing portions 2 are fixed to the handle 42 of the charging gun 4 at a certain distance from each other. The holding portion 3 connects the two fixing portions 2 and is erected between the two fixing portions 2. The holding portion 3 includes two vertical rod portions 35 respectively connected to the fixing portions 2.

[0058] When the fixing portion 2 is fixed to the handle 42 of the charging gun 4, the vertical rod portions 35 are erected from the handle 42. The holding portion 3 further includes a horizontal rod portion 36, and the horizontal rod portion 36 connects the ends of the two vertical rod portions 35 far from the fixing portion 2 (handle 42), whereby the horizontal rod portion 36 is arranged at a certain interval from the handle 42.

[0059] However, the charging gun peripheral component 1 does not necessarily need to be provided with two fixing portions 2. For example, the charging gun peripheral component 1 can also be provided with one fixing portion 2. At this time, the holding portion 3 includes a vertical rod portion 35 connected to the one fixing portion 2 and a horizontal rod portion 36 connected to the end of the vertical rod portion 35 far from the fixing portion 2, so that when the charging gun peripheral component 1 is assembled to the charging gun 4, the horizontal rod portion 36 is arranged at a certain interval from the handle 42.

[0060] By making the fixing portion 2 include the vertical rod portion 35 and the horizontal rod portion 36, and the horizontal rod portion 36 is arranged at a certain interval from the handle 42, a space for human hands to grasp is formed between the horizontal rod portion 36 and the handle 42. That is, while using the horizontal rod portion 36 as the grasping object of the robotic arm 5, the horizontal rod portion 36 is also suitable for being grasped by human hands. Thus, the charging gun 4 assembled with the charging gun peripheral component 1 of the present invention can be automatically charged by the robotic arm 5 and can also be conveniently charged manually.

[0061] As Figure 1 shown, a corrugated surface 27 can also be provided on the side of the horizontal rod portion 36 close to the charging gun 4, and the corrugated surface 27 includes continuous grooves 271 and protrusions 272.

[0062] Thereby, the horizontal rod portion 36 can be made suitable for human hand holding. In addition, the size of the groove 271 is preferably corresponding to the size of human fingers, so that the holding feel of human hands can be better.

[0063] Figure 2 The figure shows a mechanical arm 5 which forms an automatic charging system together with the charging gun peripheral component 1 of the present invention. The automatic charging system also includes necessary components such as a charging gun 4, which is connected to a power source to supply power.

[0064] like Figure 2 As shown, the mechanical arm 5, which constitutes the automatic charging system together with the charging gun 4 and the charging gun peripheral component 1, has two arm components 51 that can move relative to each other, and the arm component 51 can clamp the charging gun peripheral component 1 by relative movement. Specifically, the arm component 51 can clamp the gripping grip 3 by relative movement. The arm component 51 is powered by a motor, for example, and achieves relative movement through a rack and pinion mechanism.

[0065] Through the automatic charging system, since the charging gun peripheral component 1 with the same shape of the gripping portion 3 is assembled for the charging guns 4 of different specifications and shapes, the gripping portion 3 of the charging gun peripheral component 1 can be clamped by the same specification of the mechanical arm 5. Compared with the situation where the mechanical arm 5 is designed for the charging guns 4 of different specifications and shapes, the universality is higher and the cost is saved.

[0066] The arm parts 51 of the robot arm 5 reduce the distance between each other by moving relative to each other, for example, when the gripping part 3 is sandwiched in the middle, until the arm parts 51 apply force to the gripping part 3 from both sides to firmly fix the gripping part 3 between the two arm parts 51.

[0067] Textures for increasing friction may be respectively provided on the surfaces of the two arm parts 51 facing each other. When the two arm parts 51 clamp the gripping part 3 , the friction between the arm parts 51 and the gripping part 3 may be increased by the textures.

[0068] Furthermore, in the present embodiment, a hole 31 is provided on the gripping portion 3 of the charging gun peripheral component 1 , and a protrusion 52 corresponding to the hole 31 is provided on the arm component 51 .

[0069] Therefore, when the two arm members 51 are moved toward each other to clamp the gripping portion 3, the protrusions 52 provided on the arm members 51 are inserted into the holes 31 of the gripping portion 3, thereby achieving accurate positioning, and the arm members 51 clamp the gripping portion 3 more firmly.

[0070] In addition, the grip portion 3 may be provided with a plurality of holes 31, and correspondingly, the arm member 5 may be provided with a plurality of protrusions 52. In this case, the distance between the plurality of holes 31 is the same as the distance between the protrusions 52.

[0071] By providing a plurality of holes 31 and protrusions 52, the gripper of the robotic arm 5 can be made more secure. Moreover, compared to the case where only one hole 31 and one protrusion 52 are provided, the situation where the charging gun 4 rotates around the position where one hole 41 and one protrusion 52 cooperate can be prevented.

[0072] In addition, in the above description, the case where the holding part 3 includes the vertical rod part 35 and the horizontal rod part 36 is described. However, as described above, the holding part 3 and the fixing part 2 can be integrally formed. In this case, it can also be said that the fixing part 2 includes the vertical rod part 35. Those skilled in the art can understand that this is only a difference in literal expression and there is no difference in structure.

[0073] In addition, the above describes the case where the notch 27 is provided on the side of the fixing part 2 opposite to the holding part 3. However, the notch 27 can be provided at any position in the circumferential direction of the fixing part 2, but is preferably provided on the side opposite to the holding part 3. Thus, the portions on both sides of the notch 27 of the fixing part 2 can be deformed by the same amplitude.

[0074] In addition, Figures 1 to 4 The case where the fixing part 2 is circular is illustrated. However, depending on the shape of the installation part of the charging gun 4, the fixing part 2 can also be a ring of other shapes.

[0075] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub - combinations and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A peripheral component (1) of a charging gun, characterized in that Comprising: A fixing part (2) which can be fixed to a charging gun (4); And A holding part (3) which is connected to the fixing part (2) and is shaped to be grasped by a robotic arm (5).

2. The peripheral component (1) of a charging gun according to claim 1, wherein The fixing part (2) is in a ring shape with the shape of the inner surface (21) matching the shape of the outer surface (43) of the charging gun (4).

3. The peripheral component (1) of a charging gun according to claim 2, wherein The fixing part (2) includes a main body part (23) and a deformable flexible part (24). The main body part (23) is in a ring shape, and the flexible part (24) is arranged inside the main body part (23).

4. The peripheral component (1) of a charging gun according to claim 2 or 3, wherein The fixing part (2) is provided with a notch (27). The size of the notch (27) is smaller than the diameter of the installation part of the charging gun (4), and the fixing part (2) can elastically deform in a way that the notch (27) expands.

5. The peripheral component (1) of a charging gun according to claim 1, wherein The fixing part (2) is a flexible belt. The fixing part (2) extends from both sides of the holding part (3) and can form a ring shape by locking the two free ends through a locking mechanism (28).

6. The peripheral component (1) of a charging gun according to any one of claims 1 - 3 and 5, wherein The holding part (3) includes a vertical rod part (35) connected to the fixing part (2) and a horizontal rod part (36). The horizontal rod part (36) is connected to the end of the vertical rod part (35) far from the fixing part (2).

7. The peripheral component (1) of a charging gun according to claim 6, wherein On the side of the horizontal rod part (36) close to the charging gun (4), there is a corrugated surface (27) composed of continuous grooves (271) and protrusions (272), The size of the groove (271) corresponds to the size of a human finger.

8. An automatic charging system, characterized in that, Comprising: A charging gun (4) which is connected to a power supply; A peripheral component (1) of a charging gun which can be assembled to the charging gun (4); And A robotic arm (5) which has two arm components (51) that can move relative to each other. The arm components (51) can clamp the peripheral component (1) of the charging gun through relative movement, The peripheral component (1) of the charging gun includes: A fixing part (2) which can be fixed to the charging gun (4); And A holding part (3) which is connected to the fixing part (2) and is shaped to be grasped by a robotic arm (5).

9. The automatic charging system according to claim 8, wherein There is a hole (31) provided in the holding part (3), and a protrusion (52) corresponding to the hole (31) is provided on the arm component (51).

10. The automatic charging system according to claim 9, wherein A plurality of the holes (31) are provided in the holding part (3), and a plurality of the protrusions (52) are provided in the arm member (5). The distance between the holes (31) is the same as the distance between the protrusions (52).

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