Take-up and pay-off device and charging pile with same

Abstract

The utility model relates to the field of electric vehicle charging, in particular to a take-up and pay-off device and a charging pile with the take-up and pay-off device, and aims to solve the problem that an existing charging wire is difficult to take out in a storage state. In order to achieve the purpose, the take-up and pay-off device comprises a shell provided with a wire outlet hole; the take-up turntable is arranged in the shell and is arranged to be capable of winding a charging wire; the driving mechanism is in driving connection with the take-up turntable and is arranged to be capable of driving the take-up turntable to rotate; and the wire outlet mechanism is arranged between the take-up rotary table and the wire outlet hole, and the wire outlet mechanism is arranged to enable the charging wire between the take-up rotary table and the wire outlet mechanism to be in a tightened state. According to the device, rotation of the take-up rotary disc is automatically controlled through the driving mechanism, automatic take-up and pay-off of the charging wire are achieved, and the problems that a charging wire of a traditional direct-current fast charging pile is heavy and inconvenient to drag are solved. And meanwhile, the charging wire is kept in a tight state by the wire outlet mechanism, so that the charging wire on the take-up turntable is prevented from loosening during wire outlet.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicle charging, and particularly provides a wire winding and unwinding device and a charging pile with the same. Background Art

[0002] At present, the main energy supply mode for electric vehicle charging is DC fast charging. The advantages of this mode are fast charging speed, high energy-saving efficiency, high system stability, and high power factor. However, compared with AC slow charging piles, DC fast charging piles need to output a larger current. At present, the vast majority of output gun wires on the market are naturally cooled. Therefore, the gun wires of DC fast charging piles are thicker and the gun heads are heavier. For example, for the relatively mainstream 250A fast charging piles on the market, the gun wires they match are mostly cables with a diameter of 35mm. The weight of such a cable per meter is about 3Kg. If the charging pile is matched with a 6m gun wire, it will weigh up to 20Kg. Due to the excessive weight of the gun wire, most users will drag the gun wire on the ground when using it. This not only gives users a very bad use experience, but also there will be situations where the gun wire occupies the parking space, the vehicle runs over the gun wire, or the vehicle cannot park smoothly during use. After a long time of dragging, the cable may be damaged, endangering the safety of users.

[0003] Some charging piles adopt the method of winding the wire with a coil spring to lift the gun wire. Although this can avoid the phenomenon of the gun wire dragging on the ground, users still have to overcome the large elastic potential energy of the coil spring during the use process. At the same time, since the elastic force of the coil spring increases with the displacement, it is necessary to drag with effort when the parking distance is far, which affects the charging experience.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Utility Model

[0005] The utility model aims to solve the above technical problems and solve the problem of difficult wire outlet in the existing charging wire storage state.

[0006] The utility model provides a wire winding and unwinding device, including:

[0007] A housing, on which a wire outlet hole is opened;

[0008] A wire winding turntable, which is arranged inside the housing and is configured to wind the charging wire;

[0009] A driving mechanism, which is drivingly connected to the wire winding turntable and is configured to drive the wire winding turntable to rotate;

[0010] A wire outlet mechanism, which is arranged between the wire winding turntable and the wire outlet hole, and the wire outlet mechanism is configured to keep the charging wire between the wire winding turntable and the wire outlet mechanism in a taut state.

[0011] In the case of adopting the above technical solution, the device automatically controls the rotation of the wire-winding turntable through the driving mechanism, realizes the automatic winding and unwinding of the charging cable, solves the problems of the heavy charging cable and inconvenient dragging of the traditional DC fast charging pile, improves the user experience, reduces the risk of damage to the charging cable, and ensures the safety of users. At the same time, the wire outlet mechanism keeps the charging cable in a taut state, avoiding the problem that the charging cable on the wire-winding turntable loosens or even detaches from the wire-winding turntable during wire outlet, further improving the user experience.

[0012] In the specific implementation manner of the above wire winding and unwinding device, the wire outlet mechanism includes a wire outlet motor arranged in the housing and a pressing wheel arranged on the output end of the wire outlet motor, and the pressing wheel is arranged to be able to press the charging cable.

[0013] In the case of adopting the above technical solution, the design of the pressing wheel can better contact with the charging cable and press the charging cable, more effectively keep the charging cable in a taut state, and at the same time, the pressing groove can also prevent the charging cable from slipping to a certain extent, improving the practicability of the device.

[0014] In the specific implementation manner of the above wire winding and unwinding device, a contact wheel corresponding to the pressing wheel is arranged in the wire outlet hole.

[0015] In the case of adopting the above technical solution, the contact wheel makes the charging cable more smooth during the winding and unwinding process, ensures the pressing of the charging cable, and avoids the friction damage of the charging cable with other components.

[0016] In the specific implementation manner of the above wire winding and unwinding device, the wire winding and unwinding device further includes a conductive slip ring, the static ring of the conductive slip ring is electrically connected to the power supply end, and the moving ring of the conductive slip ring is electrically connected to the charging cable.

[0017] In the case of adopting the above technical solution, the conductive slip ring realizes continuous power supply during the rotation of the charging cable. This design solves the problem of power interruption due to rotation during the winding and releasing process of the charging cable, ensures the continuity and stability of the charging process, and improves the user experience.

[0018] In the specific implementation manner of the above wire winding and unwinding device, the static ring is located inside the moving ring, the wire-winding turntable is sleeved outside the moving ring, and the wire-winding turntable is arranged to be able to rotate with the moving ring under the drive of the driving mechanism and wind the charging cable.

[0019] In the case of adopting the above technical solution, the wire-winding turntable can rotate synchronously with the moving ring under the drive of the driving mechanism to realize the automatic winding of the charging cable, and at the same time, the stable connection between the static ring and the power supply end ensures the continuous supply of electric energy.

[0020] In the specific embodiment of the above-mentioned wire winding and unwinding device, the driving mechanism includes a driving motor and a connecting plate. One side of the connecting plate is connected to the driving shaft of the driving motor, and the other side of the connecting plate is fixedly connected to the moving ring.

[0021] In the case of adopting the above technical solution, the driving motor is fixedly connected to the moving ring through the connecting plate, realizing the transmission and conversion of power, and making the rotation of the wire winding turntable more stable and reliable.

[0022] In the specific embodiment of the above-mentioned wire winding and unwinding device, the wire winding and unwinding device further includes a bracket located inside the housing, and the driving motor is fixedly connected to the bracket; and

[0023] The static ring is connected to the bracket by a static ring fixing plate.

[0024] In the case of adopting the above technical solution, a bracket is added inside the housing to fix the driving motor and the static ring fixing plate. This enhances the structural stability of the device and reduces the risk of component loosening or damage caused by vibration or external forces.

[0025] In the specific embodiment of the above-mentioned wire winding and unwinding device, the wire winding turntable includes:

[0026] An outer ring, two retaining tabs extend outward from the outside of the outer ring, and the area formed by enclosing the two retaining tabs and the outer ring is set to be able to wind the charging cable;

[0027] An inner ring, the inner ring is located inside the outer ring, and the inner ring is sleeved on the outside of the moving ring;

[0028] A plurality of circumferential connecting rods, the plurality of circumferential connecting rods are arranged at intervals between the outer ring and the inner ring.

[0029] In the case of adopting the above technical solution, the wire winding turntable can firmly wind the charging cable, and also ensures the stability and reliability during the wire winding process, extending the service life of the device.

[0030] The present utility model also discloses a charging pile, which includes the above-mentioned wire winding and unwinding device, and the wire winding and unwinding device is arranged on the charging pile to accommodate the charging cable.

[0031] In the case of adopting the above technical solution, the rotation of the wire winding turntable is automatically controlled by the driving mechanism to realize the automatic winding and unwinding of the charging cable, solving the problems of the heavy charging cable and inconvenient dragging of the traditional DC fast charging pile, improving the user experience, reducing the risk of charging cable damage, and ensuring user safety. At the same time, the wire outlet mechanism keeps the charging cable in a taut state, avoiding the problem that the charging cable on the wire winding turntable becomes loose or even detaches from the wire winding turntable during wire outlet, further improving the user experience.

[0032] In the specific implementation manner of the above charging pile, the charging pile further includes a gun head connected to one end of the charging cable, and a control switch is arranged on the gun head, and the control switch is configured to be able to control the start and stop of the driving mechanism.

[0033] In the case of adopting the above technical solution, it enables the user to control the retraction and extension of the charging cable at any time according to needs, increasing the convenience and flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, in which:

[0035] Figure 1 is a schematic internal structure diagram of an embodiment of the charging pile of the present utility model;

[0036] Figure 2 is a schematic internal structure diagram of an embodiment of the wire retracting and extending device of the present utility model;

[0037] Figure 3 is a schematic internal structure diagram of an embodiment of the wire retracting and extending device of the present utility model from another angle;

[0038] Figure 4 is a schematic connection relationship diagram of an embodiment of the driving mechanism in the wire retracting and extending device of the present utility model;

[0039] Figure 5 is a schematic connection relationship diagram of an embodiment of the wire outlet mechanism in the wire retracting and extending device of the present utility model.

[0040] List of reference numerals: 1 - wire retracting and extending device; 11 - housing; 111 - wire outlet hole; 112 - wire passing hanging ear; 12 - charging cable; 13 - conductive slip ring; 131 - static ring; 311 - static ring fixing plate; 312 - wire passing groove; 132 - moving ring; 14 - wire winding turntable; 141 - inner ring; 142 - circumferential connecting rod; 143 - outer ring; 431 - retaining piece; 15 - bracket; 16 - wire outlet mechanism; 161 - wire outlet motor; 162 - pressing wheel; 163 - abutting wheel; 17 - driving mechanism; 171 - driving motor; 172 - connecting plate; 2 - gun head; 3 - support column; 4 - controller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present application and are not used to limit the protection scope of the present application. Those skilled in the art can make adjustments according to needs to adapt to specific application scenarios.

[0042] It should be noted that in the description of the present application, unless otherwise clearly defined and limited, terms such as "arranged" and "connected" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or other connections; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] It should also be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, "a plurality of" in the present application means at least two.

[0044] As Figure 2-5 shown, to solve the problem of difficult wire outlet in the storage state of the existing charging cable, the present utility model provides a wire winding and unwinding device 1, including: a housing 11, on which a wire outlet hole 111 is opened; a wire winding turntable 14, which is arranged inside the housing 11 and is configured to be able to wind the charging cable 12; a driving mechanism 17, the driving mechanism 17 is drivingly connected to the wire winding turntable 14 and is configured to be able to drive the wire winding turntable 14 to rotate; a wire outlet mechanism 16, which is arranged between the wire winding turntable 14 and the wire outlet hole 111, and the wire outlet mechanism 16 is configured to be able to keep the charging cable 12 between the wire winding turntable 14 and the wire outlet mechanism 16 in a taut state.

[0045] In this way, the device automatically controls the rotation of the wire winding turntable 14 through the driving mechanism 17 to realize the automatic winding and unwinding of the charging cable 12, solves the problems of the heavy charging cable of the traditional DC fast charging pile and the inconvenience of dragging, improves the user experience, reduces the risk of charging cable damage, and ensures user safety. At the same time, the wire outlet mechanism 16 keeps the charging cable 12 in a taut state, avoiding the problems of the charging cable 12 on the wire winding turntable 14 being loose or even disengaging from the wire winding turntable 14 when the wire is out, and further improving the user experience.

[0046] Figure 1 is a schematic diagram of the internal structure of an embodiment of the charging pile of the present utility model; Figure 2 is a schematic diagram of the internal structure of an embodiment of the wire winding and unwinding device of the present utility model; Figure 3 is a schematic diagram of the internal structure of another angle of an embodiment of the wire winding and unwinding device of the present utility model; Figure 4 is a schematic diagram of the connection relationship of an embodiment of the driving mechanism in the wire winding and unwinding device of the present utility model; Figure 5It is a schematic diagram of the connection relationship of the wire outlet mechanism in the wire winding and unwinding device of the present utility model.

[0047] As Figures 1-5 shown, in one or more embodiments, the charging pile includes a wire winding and unwinding device 1, a support column 3, a controller 4, and a gun head 2. The wire winding and unwinding device 1 includes a housing 11, a conductive slip ring 13, a wire winding turntable 14, a driving mechanism 17, and a wire outlet mechanism 16. The support column 3 is located on the lower side of the housing 11, and the support column 3 is used to support the housing 11. The controller 4 is located inside the housing 11, and the controller 4 can receive signals and control the rotation or stop of the driving mechanism 17 and the wire outlet mechanism 16. Alternatively, the support column 3 may not be provided, and the housing 11 can be hung on the wall. Alternatively, the controller 4 may not be provided, and other methods can be used to control the start and stop of the driving mechanism 17 and the wire outlet mechanism 16.

[0048] As Figure 1 and Figure 5 shown, in one or more embodiments, the housing 11 is a cylindrical shape with one end open; the surface of the housing 11 opposite to the opening is the bottom surface, and the surfaces adjacent to the bottom surface are the side surfaces. An outlet hole 111 facing obliquely downward is provided on the side surface of the housing 11. Two annular wire passing hanging ears 112 are arranged at intervals on the side surface of the housing 11, and the wire released from the wire winding turntable 14 passes through the wire passing hanging ears 112 and the outlet hole 111 to the outside of the housing 11. Through the wire passing hanging ears 112, the wire released from the wire winding turntable 14 can move on a preset path, avoiding the chaos of the charging wire 12 inside the housing 11. Alternatively, the number of the wire passing hanging ears 112 can be one, three, or more. Alternatively, the wire passing hanging ears 112 may not be provided, and a track that can guide the charging wire 12 can be provided.

[0049] As Figure 2 shown, in one or more embodiments, the wire winding and unwinding device 1 further includes a bracket 15 provided inside the housing 11. Through the bracket 15, the overall structural stability can be increased, and at the same time, it is convenient for the installation of the wire winding turntable 14 and the driving mechanism 17. The bracket 15 is generally a U-shaped frame. The setting of the bracket 15 enhances the structural stability of the device and reduces the risk of component loosening or damage caused by vibration or external force. Alternatively, a plate-shaped material can be used to replace the bracket 15. Alternatively, the bracket 15 may not be provided.

[0050] As Figure 1 and Figure 4As shown, in one or more embodiments, the drive mechanism 17 includes a drive motor 171 and a connection plate 172. The drive motor 171 is connected to the bracket 15. One side of the connection plate 172 is connected to the drive shaft of the drive motor 171. A first connection hole is provided on the connection plate 172. The connection plate 172 can be connected to the conductive slip ring 13 through the first connection hole. Thus, the drive motor 171 can drive the conductive slip ring 13 to rotate. In this way, the drive motor 171 is fixedly connected to the conductive slip ring 13 through the connection plate 172, realizing the transmission and conversion of power. Alternatively, the drive motor 171 can be connected to the bracket 15 through a motor fixing plate or a connection frame. Alternatively, the drive motor 171 can also be connected to the housing 11 through a motor fixing plate or a connection frame. Alternatively, the connection plate 172 can also be not provided. A connecting rod is provided on the output shaft of the drive motor 171. The connecting rod is perpendicular to the output shaft of the drive motor 171. A drive rod parallel to the output shaft is provided on the connecting rod. The drive rod rotates with the conductive slip ring 13, so that when the drive motor 171 rotates, the conductive slip ring 13 can also rotate.

[0051] As Figure 2As shown, in one or more embodiments, the conductive slip ring 13 is divided into a stationary ring 131 and a rotating ring 132. The stationary ring 131 is located inside the rotating ring 132. Relative rotation can occur between the stationary ring 131 and the rotating ring 132, and electrical connection can be maintained while rotating. The stationary ring 131 of the conductive slip ring 13 is electrically connected to the power supply end, and the rotating ring 132 of the conductive slip ring 13 is electrically connected to the charging cable 12. The conductive slip ring 13 enables continuous power supply to the charging cable 12 during rotation. This design solves the problem of power interruption due to rotation during the winding and unwinding process of the charging cable 12, ensures the continuity and stability of the charging process, and improves the user experience. Alternatively, the conductive slip ring 13 may not be provided, and a fixed ring and elastic pieces may be used. The fixed ring is connected to the fixed part, and the elastic pieces are connected to the rotating part. The elastic pieces maintain contact with the fixed ring under the action of elasticity. In one or more embodiments, a second connection hole is provided at one end of the rotating ring 132 close to the bottom surface of the housing 11. A bolt passes through the first connection hole and is connected to the second connection hole, thereby fixing the rotating ring 132 to the connecting plate 172. Alternatively, the second connection hole may not be provided on the rotating ring 132. A protrusion is provided at the edge position of the connecting plate 172, and a first connection hole is provided on the protrusion. One end of the rotating ring 132 is inserted into the cavity surrounded by the protrusion, and the rotating ring 132 is abutted by a bolt provided in the first connection hole to fix the connecting plate 172 and the rotating ring 132. In one or more embodiments, one end of the stationary ring 131 away from the bottom surface of the housing 11 protrudes from the rotating ring 132 and is provided with a wire groove 312. The wire connected to the stationary ring 131 is fixed through the wire groove 312. Alternatively, the wire groove 312 may not be provided. The stationary ring 131 is connected to the bracket 15 through a stationary ring fixing plate 311. Alternatively, other methods may also be used to connect the stationary ring 131 to the bracket 15.

[0052] As Figure 2As shown, in one or more embodiments, the wire take-up turntable 14 includes an outer ring 143, an inner ring 141, and a plurality of circumferential connecting rods 142. On the outer side of the outer ring 143, two retaining pieces 431 extend outward. The area formed by enclosing the two retaining pieces 431 and the outer ring 143 is configured to be able to wind the charging cable 12. A wire passing hole is provided on the outer ring 143, and the charging cable 12 connected to the moving ring 132 enters between the two retaining pieces 431 on the outer side of the outer ring 143 through the wire passing hole, facilitating the winding of the charging cable 12 on the outer ring 143. The inner ring 141 is located inside the outer ring 143, the inner ring 141 is sleeved on the outer side of the moving ring 132, and a wire outlet groove (not shown in the figure) for the charging cable 12 to pass through is provided on the inner ring 141. The inner ring 141 is sleeved on the outer side of the moving ring 132 and fixedly connected to the moving ring 132, so that the wire take-up turntable 14 can rotate synchronously with the moving ring 132 under the drive of the drive motor 171, realizing the automatic winding of the charging cable 12. At the same time, the stable connection between the static ring 131 and the power supply end ensures the continuous supply of electric energy. The plurality of circumferential connecting rods 142 are arranged at intervals between the outer ring 143 and the inner ring 141 for connecting the inner ring 141 and the outer ring 143. Alternatively, the number of the circumferential connecting rods 142 is preferably six, and of course, it can be three, four, five or more. Alternatively, the plurality of circumferential connecting rods 142 are replaced by a circumferential connecting plate, and the inner ring 141 and the outer ring 143 are connected by the circumferential connecting plate. Alternatively, no retaining pieces 431 are provided on the outer ring 143, and a storage groove for winding the charging cable 12 is provided on the outer side of the outer ring 143.

[0053] As Figure 2 , Figure 3 and Figure 5 As shown, in one or more embodiments, the wire outlet mechanism 16 includes a wire outlet motor 161, a pressing wheel 162, and an abutting wheel 163. The wire outlet motor 161 is disposed at a position near the wire outlet in the housing 11, and the wire outlet motor 161 is connected to the bottom surface of the housing 11 through a motor fixing plate. Alternatively, the wire outlet motor 161 can also be connected to the bracket 15 through a motor fixing plate. In one or more embodiments, a pressing groove extending in the circumferential direction of the pressing wheel 162 is provided on the circumferential surface of the pressing wheel 162. The abutting wheel 163 is located in the wire outlet hole 111, and the abutting wheel 163 and the pressing wheel 162 are disposed opposite to each other, so that the charging cable 12 can pass between the abutting wheel 163 and the pressing wheel 162. The designs of the pressing wheel 162 and the abutting wheel 163 can better contact the charging cable 12 and press the charging cable 12, more effectively keeping the charging cable 12 in a taut state. The pressing groove can also prevent the charging cable 12 from slipping off to a certain extent, improving the practicability of the device. Alternatively, the wire outlet mechanism 16 may not include the abutting wheel 163. Under the action of the gravity of the charging cable 12, the friction between the charging cable 12 and the pressing wheel 162 keeps the charging cable 12 in a taut state in the housing 11.

[0054] AsFigure 1 As shown, in one or more embodiments, a control switch is provided on the tip 2, and the control switch is configured to control the start and stop of the drive mechanism 17. Specifically, when the control switch is long-pressed, the controller 4 controls the drive motor 171 and the wire-out motor 161 to rotate for wire-out; when the long-press is no longer applied, the wire-out stops; when the control switch is long-pressed again, the controller 4 controls the drive motor 171 and the wire-out motor 161 to rotate in the reverse direction for wire-in. Alternatively, when the control switch is single-clicked, the controller 4 controls the drive motor 171 and the wire-out motor 161 to rotate for wire-out. When the control switch is double-clicked, the controller 4 controls the drive motor 171 and the wire-out motor 161 to rotate in the reverse direction for wire-in. During wire-out and wire-in, single-clicking or double-clicking can stop the drive motor 171 and the wire-out motor 161.

[0055] Those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present application and forms different embodiments. For example, in the claims of the present application, any one of the claimed embodiments can be used in any combination.

[0056] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A wire-reeling device, characterized in that: include: A housing having a wire outlet hole formed thereon; A wire take-up turntable, which is disposed in the housing and configured to wind the charging wire; A driving mechanism, the driving mechanism is connected to the wire take-up rotary disc and is configured to drive the wire take-up rotary disc to rotate; The wire outlet mechanism is arranged between the wire take-up turntable and the wire outlet hole, and the wire outlet mechanism is arranged to make the charging wire between the wire take-up turntable and the wire outlet mechanism in a taut state.

2. The wire-retracting and -releasing device according to claim 1, characterized in that: The wire-out mechanism comprises a wire-out motor arranged in the housing and a clamping wheel arranged on the output end of the wire-out motor, and the clamping wheel is configured to clamp the charging wire.

3. The wire-retracting and releasing device according to claim 2, characterized in that: An abutment wheel corresponding to the clamping wheel is arranged in the wire outlet hole.

4. The wire-retracting and -releasing device according to claim 1, characterized in that: The wire retracting and releasing device further comprises a conductive slip ring, a static ring of the conductive slip ring is electrically connected to the power supply end, and a dynamic ring of the conductive slip ring is electrically connected to the charging line.

5. The wire-retracting and -releasing device according to claim 4, characterized in that: The static ring is located inside the dynamic ring, the wire take-up turntable is sleeved on the outside of the dynamic ring, and the wire take-up turntable is configured to rotate with the dynamic ring and wind the charging wire under the drive of the driving mechanism.

6. The wire-retracting and -releasing device according to claim 5, characterized in that: The driving mechanism comprises a driving motor and a connecting plate, one side of the connecting plate is connected to the driving shaft of the driving motor, and the other side of the connecting plate is fixedly connected to the moving ring.

7. The wire-retracting and -releasing device according to claim 6, characterized in that: The wire-retracting and -releasing device further comprises a bracket located in the housing, and the driving motor is fixedly connected to the bracket; and The stationary ring and the bracket are connected by a stationary ring fixing plate.

8. The wire-retracting and -releasing device according to claim 5, characterized in that: The take-up turntable comprises: An outer ring, the outer side of the outer ring extends outward to form two baffles, and the area formed by the two baffles and the outer ring is configured to be able to wrap around the charging cable; An inner ring, the inner ring is located inside the outer ring, and the inner ring is sleeved on the outer side of the moving ring; A plurality of circumferential connecting rods are arranged between the outer ring and the inner ring at intervals from each other.

9. A charging pile, characterized in that: The charging pile comprises a wire-retracting and -releasing device as claimed in any one of claims 1 to 8, and the wire-retracting and -releasing device is arranged on the charging pile to receive the charging wire.

10. The charging pile according to claim 9, characterized in that: The charging pile also includes a gun head connected to one end of the charging line, and a control switch is arranged on the gun head, and the control switch is configured to control the start and stop of the driving mechanism.

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