A wire stranding device and charging pile

Abstract

The utility model relates to a kind of cable reel and charging pile, the circumferential outside groove of cable reel is wound with charging cable, cable reel is fixed with the shaft center of cable reel, one side of cable reel is equipped with stator, the shaft center of stator is rotatably connected with cable reel, the side of stator close to cable reel is equipped with multiple conducting rings, and conducting ring is connected with the cable inside charging pile respectively by the outgoing line hole outside stator;Multiple carbon brushes are equipped on the side of cable reel close to stator, and carbon brush is coupled with conducting ring, and the other side of carbon brush is connected with charging cable.A kind of charging pile, including cable reel;Still include support, the top of support is box body, and box body is equipped with cable reel and driving device, and driving device drives cable reel to rotate, and the end of charging cable away from cable reel is connected charging gun.The utility model relates to a kind of cable reel and charging pile, the cable reel and charging pile can realize the function of cable's release and collection without affecting cable life, reduce the risk that it brings unexpectedly to people.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to a stranded wire and a charging pile. Background Technology

[0002] With technological advancements, the penetration rate of new energy vehicles in China is continuously increasing, which places new demands on the charging technology used in conjunction with them. Currently, the charging cables of charging stations are placed directly outdoors, and their lifespan is easily shortened by factors such as vehicle tires and wind and rain. In addition, they can easily trip pedestrians, posing significant safety hazards.

[0003] To address these issues, patents such as CN218430912U have proposed some car charging piles with automatic cable winding functions. However, during continuous rotation of the cable twister, the cable on one side will experience significant twisting. Long-term use may lead to unexpected situations such as cable breakage or snapping, which is not in line with the actual use of car charging piles. Utility Model Content

[0004] To address the problem that existing car charging stations suffer from significant cable twisting on one side during continuous rotation of the cable twister, a new cable twister and charging station are proposed.

[0005] The technical solution of this utility model is as follows: a stranding device includes a stranding disc, which is disc-shaped. A groove is provided on the outer circumference of the stranding disc, and a charging cable is wound inside the groove. The stranding device also includes a stranding shaft, which is fixedly inserted through the axis of the stranding disc. A stator is provided on one side of the stranding disc, and the axis of the stator is rotatably connected to the stranding shaft. A plurality of conductive rings are provided on the side of the stator near the stranding disc. The conductive rings are spaced apart circumferentially along the axis of the stator. The conductive rings are connected to the cable inside the charging pile through the wire outlet hole on the outer side of the stator.

[0006] The stranded coil has multiple carbon brushes on the side near the stator. The carbon brushes are coupled to the conductive ring, and the other side of the carbon brushes is connected to the charging cable.

[0007] Preferably, the side of the carbon brush away from the conductive ring is provided with an elastic element to maintain contact with the conductive ring; a limiting block is provided between the two sides of adjacent carbon brushes to prevent the carbon brushes from sliding and misaligning, and each carbon brush is located between two limiting blocks.

[0008] A charging station, comprising the aforementioned stranded cable;

[0009] It also includes a bracket, with a box at the top of the bracket. Inside the box are a twisted wire and a drive device. The drive device drives the twisted wire to rotate. The end of the charging cable away from the twisted wire is connected to the charging gun, which is located on the bottom outside of the box.

[0010] Preferably, the bracket further includes a connecting rod and a base, with the connecting rod connected to the bottom of the box and the other end of the connecting rod connected to the base.

[0011] Preferably, the housing is further provided with a speed regulator for controlling the rotation speed of the drive device. The knob of the speed regulator is located on the outside of the housing, and the speed regulator is electrically connected to the drive device.

[0012] Preferably, the two ends of the stranded wire shaft are rotatably connected to the support rod, and the bottom of the support rod is fixedly connected to the inside of the box.

[0013] Preferably, a driven disc is provided on the side of the stranded coil away from the stator, and the stranded wire shaft is fixedly inserted through the center of the driven disc, and the driving device drives the driven disc to rotate.

[0014] Preferably, the charging gun is equipped with a controller that controls the forward and reverse rotation of the drive device. The controller is electrically connected to the drive device, and the control button of the controller is located on the outside of the charging gun.

[0015] Preferably, a current sensor is provided inside the housing, and the current sensor is electrically connected to a driving device.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a cable stranding device and charging station, which can realize the cable winding and rewinding function without affecting the cable life, reducing the risk of accidents. Automatic operation is achieved through a drive device; the user only needs to hold the charging gun to achieve the cable winding and rewinding function. Different speed settings are provided for different user habits. The overload current detection function can quickly detect cable jamming problems, reducing the occurrence of accidents. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the stranding device structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the stranding device of this utility model from another angle;

[0019] Figure 3 This is a schematic diagram of the structure of the charging pile of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the charging pile of this utility model;

[0021] Figure 5 This is a schematic diagram of the gear transmission structure of the charging pile of this utility model;

[0022] Figure 6 This is a schematic diagram of the chain drive structure of the charging pile of this utility model;

[0023] Figure 7This is a schematic diagram of the charging gun structure of this utility model.

[0024] The component names corresponding to the various reference numerals in the diagram are as follows:

[0025] 1. Bracket; 11. Box; 12. Connecting rod; 13. Base; 14. Speed ​​controller; 2. Stranding device; 21. Stranding reel; 211. Carbon brush; 212. Limiting block; 22. Stator; 221. Conductive ring; 222. Outlet hole; 23. Stranding shaft; 24. Driven disc; 25. Support rod; 3. Drive unit; 4. Charging cable; 5. Charging gun; 51. Controller. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0027] refer to Figure 1 , 2 As shown in the figure, this application discloses a stranding device, including a stranding reel 21. The stranding reel 21 is disc-shaped, and a groove is provided on the outer circumference of the stranding reel 21. (Refer to...) Figure 4 As shown, a charging cable 4 is wound inside the groove. The stranding device 2 also includes a stranding shaft 23, which passes through the axis of the stranding disc 21. The stranding shaft 23 is fixedly connected to the stranding disc 21. A stator 22 is provided on the side of the stranding disc 21 away from the driven disc 24. The axis of the stator 22 is rotatably connected to the stranding shaft 23. A plurality of conductive rings 221 are provided on the side of the stator 22 near the stranding disc 21. The conductive rings 221 are spaced apart circumferentially along the axis of the stator 22. The conductive rings 221 are made of brass. The conductive rings 221 are connected to the cables inside the charging pile through the outlet holes 222 on the outside of the stator 22.

[0028] Multiple carbon brushes 211 are provided on the side of the stranded coil 21 near the stator 22. The carbon brushes 211 are positioned corresponding to the conductive ring 221 and are coupled to the conductive ring 221. The other side of the carbon brushes 211 is connected to the signal line and cable corresponding to the charging cable 4, respectively. An elastic element is provided on the side of the carbon brushes 211 away from the conductive ring 221. The elastic element presses against the carbon brushes 211 and keeps them in contact with the conductive ring 221. A limiting block 212 is provided between the two sides of adjacent carbon brushes 211. Each carbon brush 211 is located between two limiting blocks 212 to ensure that the carbon brushes 211 will not slide or become misaligned.

[0029] Based on the national standard 20234.2-2015, the charging pile cable consists of 5 power lines and 2 communication lines. According to... Figure 6In this example, there are 7 conductive rings corresponding to the 7 wires. The current is transferred between the stator 22 and the stranded coil 21 through the brass conductive rings 221.

[0030] When the stranded coil 21 is working, the carbon brush 211 connected to it is also driven to rotate around the stranded shaft 23 and slide continuously on the conductive ring 221, ensuring that electrical energy and signals can be transmitted between the internal power supply cable of the charging pile connected to the stator 22 and the external cable connected to the stranded coil 21. Furthermore, this design ensures that the cable and signal line will not twist or break even when the stranded coil 21 rotates continuously or intermittently, which is very suitable for the actual use scenario of car charging piles.

[0031] refer to Figure 3 , 4 As shown in the figure, this application discloses a charging pile, including a bracket 1, the top of the bracket 1 is a box 11, the box 11 is provided with a twisted wire 2 and a driving device 3, the driving device 3 can be a motor, the driving device 3 drives the twisted wire 2 to rotate, the end of the charging cable 4 away from the twisted wire 2 is connected to the charging gun 5, the charging gun 5 is located on the bottom outside of the box 11.

[0032] The bracket 1 also includes a connecting rod 12 and a base 13. The bottom of the box 11 is connected to the connecting rod 12, and the other end of the connecting rod 12 is connected to the base 13. The charging pile is installed on the ground through the base 13.

[0033] The housing 11 is also equipped with a speed controller 14. The knob of the speed controller 14 is located on the outside of the housing 11, which is convenient for users to adjust and control by turning the knob. The speed controller 14 is electrically connected to the drive device 3. The speed controller 14 can output the corresponding PWM waveform to control the speed of the drive device 3, and thus control the winding speed of the strand 2.

[0034] The two ends of the stranded wire shaft 23 are rotatably connected to the support rod 25, and the bottom of the support rod 25 is fixedly connected to the inside of the box 11.

[0035] refer to Figure 5 , 6 As shown, a driven disc 24 is provided on the side of the stranded disc 21 away from the stator 22. The stranded shaft 23 passes through the axis of the driven disc 24. The driven disc 24 is fixedly connected to the stranded shaft 23. The driving device 3 drives the driven disc 24 to rotate, thereby driving the stranded disc 21 to rotate.

[0036] One specific driving method is as follows: the outer side of the driven disk 24 is a gear, the output end of the driving device 3 is provided with a gear, the gear of the driven disk 24 meshes with the gear of the driving device 3, and the driving device 3 drives the driven disk 24 to rotate.

[0037] Another driving method is that a transmission belt is fitted on the outer periphery of the driven disk 24 and the outer periphery of the output end of the driving device 3 at the same time, and the driving device 3 drives the driven disk 24 to rotate through the transmission belt.

[0038] In addition, the output end of the drive device 3 is fixedly connected to the stranded shaft 23, and the drive device 3 directly drives the stranded shaft 23 to rotate coaxially.

[0039] refer to Figure 7 As shown, the charging gun 5 is equipped with a controller 51, which is electrically connected to the drive device 3. The controller 51 controls the forward and reverse rotation of the drive device 3. The control button of the controller 51 is located on the outside of the charging gun 5. The user can control it in real time through the button. By controlling the forward and reverse rotation of the drive device 3 through the controller 51, the rotation direction of the stranded wire 2 is controlled, thereby realizing the extension and retraction functions.

[0040] It also includes a current sensor, which is installed inside the housing 11. The current sensor is electrically connected to the drive circuit of the drive device 3. The current sensor can be a Hall sensor. When it detects an increase in current, it will send a signal to the controller, which will then perform overcurrent protection through a preset program. When the twisted wire 2 fails to rotate due to unexpected factors such as wire jamming, the drive device 3, which is rigidly connected to it, will also stall, causing an abnormal increase in current. This phenomenon is observed by the current sensor and the fault information is displayed on the external screen. The data can also be uploaded to the remote backend for service personnel to provide necessary assistance.

[0041] The specific working method is as follows: the speed of the drive device 3 is set by the speed regulator 14 knob on the outside of the box 11, thereby controlling the winding speed of the strand 2. The forward and reverse rotation of the drive device 3 is controlled by the controller 51 button of the charging gun 5, thereby controlling the rotation direction of the strand 2 and realizing the extension and winding functions.

[0042] The carbon brush 211 is fixed to the stranded coil 21. When the drive device 3 drives the stranded coil 21 to rotate around its axis, the carbon brush 211 is also driven to revolve around the axis, forming a circular trajectory. The radius of this trajectory is the same as the radius of the conductive ring 221 on the stator, thus ensuring that the carbon brush 211 remains in contact with the conductive ring 221 regardless of its rotation position, thereby ensuring continuous transmission of current and signals. An elastic element is provided on the other side of the carbon brush to maintain contact with the conductive ring 221. A limiting block 212 ensures that the carbon brush 211 will not slide or become misaligned.

[0043] The beneficial effects are:

[0044] This utility model discloses a cable stranding device and charging station. This device and charging station enable cable winding and rewinding without affecting cable lifespan, reducing the risk of accidents. Automatic operation is achieved through the drive device 3; the user only needs to hold the charging gun 5 to wind and rewind the cable. Different speed settings are provided to cater to different user habits. An overload current detection function can quickly identify cable jamming issues, reducing the occurrence of accidents.

[0045] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A stranding device, characterized in that, The device includes a stranding disc (21), and the stranding device (2) includes a stranding disc (21). The stranding disc (21) is disc-shaped. A groove is provided on the outer circumference of the stranding disc (21). A charging cable (4) is wound inside the groove. The stranding device (2) also includes a stranding shaft (23). The stranding shaft (23) is fixedly installed at the axis of the stranding disc (21). A stator (22) is provided on one side of the stranding disc (21). The axis of the stator (22) is rotatably connected to the stranding shaft (23). A plurality of conductive rings (221) are provided on the side of the stator (22) near the stranding disc (21). The conductive rings (221) are spaced apart along the circumferential axis of the stator (22). The conductive rings (221) are connected to the cable inside the charging pile through the outlet hole (222) on the outer side of the stator (22). The stranded coil (21) is provided with multiple carbon brushes (211) on the side near the stator (22). The carbon brushes (211) are coupled to the conductive ring (221), and the other side of the carbon brushes (211) is connected to the charging cable (4).

2. The stranding device according to claim 1, characterized in that, The carbon brush (211) is provided with an elastic element on the side away from the conductive ring (221) to keep it in contact with the conductive ring (221); a limiting block (212) is provided between the two sides of the adjacent carbon brush (211) to prevent the carbon brush (211) from sliding and misaligning, and each carbon brush (211) is located between two limiting blocks (212).

3. A charging pile, characterized in that, Includes the stranded wire as described in claim 1 or 2; It also includes a bracket (1), the top of which is a box (11), and inside the box (11) are a twister (2) and a drive device (3). The drive device (3) drives the twister (2) to rotate, and the end of the charging cable (4) away from the twister (2) is connected to the charging gun (5). The charging gun (5) is located on the bottom outside of the box (11).

4. The charging pile according to claim 3, characterized in that, The bracket (1) also includes a connecting rod (12) and a base (13). The bottom of the box (11) is connected to the connecting rod (12), and the other end of the connecting rod (12) is connected to the base (13).

5. The charging pile according to claim 3, characterized in that, The box (11) is also equipped with a speed regulator (14) for controlling the speed of the drive device (3). The knob of the speed regulator (14) is located on the outside of the box (11), and the speed regulator (14) is electrically connected to the drive device (3).

6. The charging pile according to claim 3, characterized in that, The two ends of the stranded shaft (23) are rotatably connected to the support rod (25), and the bottom of the support rod (25) is fixedly connected to the inside of the box (11).

7. The charging pile according to claim 3, characterized in that, The stranding disc (21) is provided with a driven disc (24) on the side away from the stator (22). The stranding shaft (23) is fixedly installed at the axis of the driven disc (24), and the driving device (3) drives the driven disc (24) to rotate.

8. The charging pile according to claim 3, characterized in that, The charging gun (5) is equipped with a controller (51) that controls the forward and reverse rotation of the drive device (3). The controller (51) is electrically connected to the drive device (3), and the control button of the controller (51) is located on the outside of the charging gun (5).

9. The charging pile according to claim 3, characterized in that, The housing (11) is equipped with a current sensor, which is electrically connected to the drive device (3).

Images