Cable winding device, wireless charger and power supply equipment

Abstract

The utility model relates to a cable winding device, a wireless charger and power supply equipment, the cable winding device comprises a base, a wire spool rotatably arranged on the base and an elastic piece driving the wire spool to reset, and the base is movably provided with a movable piece matched with the wire spool; when the cable is released, the wire spool rotates under the action of pulling force, the elastic piece deforms, the movable piece moves on the base and is matched with the wire spool, and the wire spool can be locked to keep the pulling-out state of the cable. When the cable is wound, the wire spool is pulled to rotate so as to drive the movable part to move to be unlocked from the wire spool, and after unlocking, the elastic part releases potential energy to drive the wire spool to rotate reversely to reset so as to wind the cable. Through the cooperation of the wire spool, the elastic piece and the movable piece, the cable can be automatically locked and automatically wound after being quickly released, the convenience of cable management is improved, in addition, the cable can be effectively prevented from being disordered and damaged in the storage process, and the service life of the cable is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of power supply equipment accessories, and more specifically, to a cable winding device, a wireless charger and a power supply device. Background Art

[0002] In the design of existing power supply devices, the storage and management of power cords have always been an urgent problem to be solved. Many power supply devices, such as chargers, mobile power supplies, routers, etc., are equipped with long power cords or power lines to facilitate flexible arrangement in various usage scenarios. However, these power cords often scatter randomly when not in use, which not only affects the neatness and beauty of the devices, but also is easily damaged due to trampling, pulling and other reasons, reducing the service life of the devices.

[0003] Traditional solutions usually involve attaching storage bags or winding tapes and other tools outside the power supply device to organize the power cords, but these methods are cumbersome to operate, have poor user experience, and are easily lost. In addition, although some high-end power supply devices have built-in simple winding mechanisms, they can often only achieve basic winding functions, cannot automatically lock the power cord after it is pulled out and accurately control the length of the pulled-out power cord, and have the problem of single function.

[0004] In view of this, it is necessary to provide a technical solution to solve the above problems. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a cable winding device, a wireless charger and a power supply device in view of the above-mentioned defects of the prior art.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] Construct a cable winding device, including a base, a winding disc rotatably arranged on the base, and an elastic member for driving the winding disc to reset. The base is movably provided with a movable member cooperating with the winding disc. When releasing the cable, the winding disc rotates under the action of a pulling force, the elastic member deforms, and the movable member moves on the base and cooperates with the winding disc to lock the winding disc to maintain the pulled-out state of the cable. When winding the cable, pull the winding disc to rotate to drive the movable member to move and unlock from the winding disc. After unlocking, the elastic member releases potential energy to drive the winding disc to reverse and reset to wind the cable.

[0008] As an improvement of the cable winding device, a special-shaped groove is formed at the bottom of the winding disc, and at least one guiding portion is arranged in the special-shaped groove. The guiding portion divides the special-shaped groove into at least one connected inner track and outer track. A limiting block is arranged at the connection. One end of the guiding portion cooperates with the outer track to guide the movable member to move and be limited towards the limiting block, and to guide the movable member to move towards the inner track; the other end of the guiding portion cooperates with the limiting block to guide the movable member to move towards the outer track.

[0009] As an improvement of the cable winding device, the limiting block has a limiting groove for accommodating the movable member and a first guiding surface for guiding the movable member to move towards the outer track.

[0010] As an improvement of the cable winding device, one end of the guiding portion facing the limiting groove has a first guiding surface and a second guiding surface, which are respectively used for guiding the movable member from the outer track towards the limiting groove and from the limiting groove towards the inner track.

[0011] As an improvement of the cable winding device, one end of the guiding portion facing the outer track has a third guiding surface, and the third guiding surface cooperates with the first guiding surface.

[0012] As an improvement of the cable winding device, one side of the outer track close to the limiting block has a second guiding surface, which can guide the movable member to move towards the first guiding surface and cooperate with the first guiding surface to guide towards the limiting groove.

[0013] As an improvement of the cable winding device, a strip-shaped groove is formed in the base, and the movable member can perform a linear motion along a specified track in the strip-shaped groove.

[0014] As an improvement of the cable winding device, the movable member is a ball.

[0015] As an improvement of the cable winding device, there are two guiding portions, and there are also two connections between the inner track and the outer track. The limiting blocks are arranged at both connections.

[0016] As an improvement of the cable winding device, the winding disc and the base are also detachably connected.

[0017] A wireless charger has a power cord for input and / or output, and includes the above-mentioned cable winding device, and the power cord is wound around the winding disc of the cable winding device.

[0018] A power supply device has a power cord for input and / or output, includes the above-mentioned cable winding device, and the power cord is wound around the winding disc of the cable winding device.

[0019] The beneficial effects of the present utility model are as follows: Through the cooperation of the winding disc, the elastic member and the movable member, the cable can be automatically locked and automatically wound after being quickly released, improving the convenience of cable management. In addition, it can effectively prevent the cable from being chaotic and damaged during the storage process, ensuring the service life of the cable, and at the same time enhancing the user experience.

[0020] Moreover, through the cooperation of the winding disc, the elastic member and the movable member, the cable can be limited and locked at different degrees of being pulled outwards, enabling the user to release the corresponding cable length to adapt to different scenarios, avoiding the problem that the cable is pulled out too long or too short and affecting the use experience, and realizing the precise control and stable performance of the cable winding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will further illustrate the present utility model in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0022] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0023] Figure 2 is an exploded view of the present utility model;

[0024] Figure 3 is a bottom view of the winding disc of the present utility model;

[0025] Figure 4 is a top view of the base of the present utility model;

[0026] Figure 5 is a schematic diagram of the movement track of the movable member in the special-shaped groove of the present utility model;

[0027] Figure 6 is a three-dimensional structure schematic diagram of the present utility model in the wound state;

[0028] Figure 7 is a three-dimensional structure schematic diagram of the present utility model in the released state;

[0029] Figure 8 is a three-dimensional structure schematic diagram of a wireless charger provided by the present utility model;

[0030] Figure 9This is a partial three-dimensional structural schematic diagram of a wireless charger provided by the present utility model.

[0031] In the figure: 1, base; 11, strip groove; 2, winding disc; 21, special-shaped groove; 211, inner track; 212, outer track; 22, second guiding surface; 3, elastic member; 4, movable member; 5, guiding portion; 51, first guiding surface; 52, second guiding surface; 53, third guiding surface; 6, limiting block; 61, limiting groove; 62, first guiding surface; 7, wireless charger; 8, power cord. Specific embodiments

[0032] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are only partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 7 shown, a cable winding device includes a base 1, a winding disc 2 rotatably arranged on the base 1, and an elastic member 3 for driving the winding disc 2 to reset. A movable member 4 cooperating with the winding disc 2 is movably arranged on the base 1; when releasing the cable, the winding disc 2 rotates under the action of a pulling force, the elastic member 3 deforms, and the movable member 4 moves on the base 1 and cooperates with the winding disc 2, and can lock the winding disc 2 to maintain the pulled-out state of the cable; when winding the cable, the winding disc 2 is pulled to rotate to drive the movable member 4 to move to unlock from the winding disc 2. After unlocking, the elastic member 3 releases potential energy to drive the winding disc 2 to reverse and reset to wind the cable.

[0034] Specifically, the elastic member 3 is a volute spring, and the movable member 4 is movably arranged on the upper end surface of the base 1 and can linearly move on the base 1. This cable winding device can be arranged in an electrical device or a power supply device, and the cable to be wound is wound around the winding disc 2 and extends outwards of the device for the user to take the cable.

[0035] When releasing the cable, the winding disc 2 will rotate under the action of the pulling force. At this time, the elastic member 3 will deform, and at the same time, the movable member 4 will move on the base 1 and cooperate with the winding disc 2 to lock the winding disc 2. The elastic member 3 cannot drive the winding disc 2 to rotate and reset, so as to maintain the cable in the pulled-out state. When it is necessary to wind up the cable, the user only needs to pull the cable outwards to rotate the winding disc 2. This action will drive the movement of the movable member 4, and then release the locking state with the winding disc 2. Once the locking is released, the elastic member 3 that has stored potential energy before will release the potential energy, thereby driving the winding disc 2 to reverse and reset to realize the automatic winding of the cable.

[0036] Through the cooperation of the winding disc 2, the elastic member 3 and the movable member 4, the present utility model can realize the automatic locking and automatic winding of the cable after rapid release, improve the convenience of cable management. In addition, it can effectively prevent the cable from being disordered and damaged during the storage process, ensure the service life of the cable, and at the same time improve the user experience.

[0037] The cooperation of the winding disc 2, the elastic member 3 and the movable member 4 can limit and lock different degrees of the cable being pulled outwards, enabling the user to release the corresponding cable length to adapt to different scenario conditions, and avoiding the problem that the cable being pulled out too long or too short affects the use experience, realizing the precise control and stable performance of the cable winding device.

[0038] In some embodiments of the present application, a special-shaped groove 21 is formed at the bottom of the winding disc 2. A guiding portion 5 is arranged in the special-shaped groove 21. The guiding portion 5 divides the special-shaped groove 21 into a connected inner track 211 and an outer track 212. A limiting block 6 is arranged at the connection. One end of the guiding portion 5 cooperates with the outer track 212 to guide the movable member 4 to move towards the limiting block 6 for limiting, and to guide the movable member 4 to move towards the inner track 211; the other end of the guiding portion 5 cooperates with the limiting block 6 to guide the movable member 4 to move towards the outer track 212.

[0039] When the cable in the wound-up state needs to be pulled out for use, the movable member 4 is located in the inner track 211. First, pull the cable outwards. Since the cable is wound around the winding disc 2, the winding disc 2 will be driven to rotate counterclockwise during the process of pulling the cable, and the elastic member 3 will deform. After the movable member 4 contacts the limiting block 6, it will be pushed to move to the outer track 212 through the guidance of the limiting block 6. During the process of the winding disc 2 rotating counterclockwise (i.e., when the cable is pulled outwards), the movable member 4 is always located in the outer track 212. Until the cable is pulled out to the specified length, release the cable, and the restoring elastic force of the elastic member 3 drives the winding disc 2 to rotate clockwise to reset. During this process, the movable member 4 is guided to move towards the limiting block 6 in cooperation with the outer track 212 through the guiding portion 5. After the movable member 4 abuts against the limiting block 6 and cooperates, the winding disc 2 is limited and locked, and the restoring elastic force of the elastic member 3 cannot drive the winding disc 2 to rotate and reset. Subsequently, the user can use the cable pulled outwards to complete the release function of the cable.

[0040] When the cable in the released state needs to be wound up, first pull the cable outwards again to drive the winding disc 2 to rotate counterclockwise. After the movable member 4 contacts the guiding portion 5, it is guided to move to the inner track 211 through the guiding portion 5. Subsequently, release the cable, and the restoring elastic force of the elastic member 3 drives the winding disc 2 to rotate clockwise to reset, gradually winding the cable until the elastic member 3 is completely reset to complete the winding function of the cable.

[0041] With the cooperation of the movable member 4, the special-shaped groove 21, the guiding portion 5 and the limiting block 6 of the present utility model, when the user pulls out the cable, the winding disc 2 rotates counterclockwise, and the movable member 4 moves in the outer track 212. After releasing the cable, the elastic member 3 resets to drive the winding disc 2 to rotate clockwise, and the movable member 4 moves to the limiting block 6 under the guidance of the guiding portion 5 and is locked. When the cable is wound up, pull the cable out again to move the movable member 4 to the inner track 211, and after releasing, the elastic member 3 resets to drive the winding disc 2 to rotate clockwise to realize the winding of the cable. By automatically winding up and releasing the cable, the convenience of user operation and the overall experience of equipment use are improved. The unique guiding mechanism design of the mutual cooperation of the movable member 4, the special-shaped groove 21, the guiding portion 5 and the limiting block 6 can limit and lock different degrees of the cable pulled outwards, enabling the user to release the corresponding cable length to adapt to different scenario conditions, avoiding the problem that the cable is pulled out too long or too short and affecting the use experience, and realizing the precise control and stable performance of the cable winding device.

[0042] In some embodiments of the present application, the limiting block 6 has a limiting groove 61 for accommodating the movable member 4 and a first guiding surface 62 for guiding the movable member 4 to move outward along the outer track 212. Specifically, when the movable member 4 rotates counterclockwise around the winding disc 2, through the cooperation of the guiding portion 5 and the outer track 212, it is guided to move towards the limiting block 6. The setting of the limiting groove 61 provides a stable stopping position for the movable member 4, enabling the movable member 4 to be accurately accommodated and locked. This ensures that the winding disc 2 will not automatically reset under the action of the elastic member 3 until the user needs to operate again. The setting of the first guiding surface 62 is used to provide guidance when the movable member 4 needs to move from the inner track 211 to the outer track 212. When the winding disc 2 rotates counterclockwise and drives the movable member 4 to move, the first guiding surface 62 can guide the movable member 4 to smoothly slide towards the outer track 212 without getting stuck in the special-shaped groove 21 or deviating from the predetermined path.

[0043] The design of the limiting groove 61 ensures that the movable member 4 can be firmly locked when it reaches the limiting block 6, thereby preventing the winding disc 2 from accidentally resetting under the action of the elastic member 3, and improving the stability and reliability of the entire cable winding device. Through the design of the first guiding surface 62, users can experience a smooth operation experience during use. The movement of the movable member 4 between the inner and outer tracks 212 becomes smooth and predictable, reducing the troubles caused by improper operation or equipment failure.

[0044] Furthermore, one end of the guiding portion 5 facing the limiting groove 61 has a first guiding surface 51 and a second guiding surface 52, which are respectively used to guide the movable member 4 from the outer track 212 towards the limiting groove 61 and from the limiting groove 61 towards the inner track 211. Specifically, when the movable member 4 moves to the outer track 212 and contacts the guiding portion 5 as the winding disc 2 rotates counterclockwise, after loosening the cable, the elastic member 3 drives the winding disc 2 to rotate clockwise and reset. The first guiding surface 51 comes into play and cooperates with the outer track 212 (i.e., the groove wall of the special-shaped groove 21) to guide the movable member 4 to smoothly slide towards the limiting groove 61 along a predetermined trajectory. During this process, the first guiding surface 51 ensures that the movable member 4 can accurately reach the limiting block 6 and be locked.

[0045] In some operation modes, such as when winding the cable, the movable member 4 needs to return from the limiting groove 61 to the inner track 211. First, pull the cable outward. At this time, the second guiding surface 52 comes into play, guiding the movable member 4 to disengage from the position cooperating with the limiting groove 61 and smoothly return to the inner track 211 along a path opposite to that of the first guiding surface 51. This design ensures the smooth conversion of the movable member 4 between the inner and outer tracks 212.

[0046] Through the settings of the first guiding surface 51 and the second guiding surface 52, the movement of the movable member 4 between the inner track 211 and the outer track 212 becomes extremely smooth, reducing the jamming and obstruction during operation and enhancing the user experience. The existence of the first guiding surface 51 and the second guiding surface 52 enables the cable winding device to more precisely control the position of the movable member 4. Whether releasing or winding the cable, the movable member 4 can move to the designated position along the predetermined path, thereby achieving precise control of the cable length.

[0047] In some embodiments of the present application, one end of the guiding portion 5 facing the outer track 212 has a third guiding surface 53, and the third guiding surface 53 cooperates with the first guiding surface 62. Specifically, when it is necessary to pull out and release the cable, at this time the movable member 4 is located on the inner track 211. As the cable is pulled out, the winding disc 2 is driven to rotate counterclockwise to a certain extent. After the movable member 4 contacts the third guiding surface 53 of the guiding portion 5, through the guiding of the third guiding surface 53, it moves towards the first guiding surface 62 of the limiting block 6. After the movable member 4 contacts the first guiding surface 62, the first guiding surface 62 guides the movable member 4 to move towards the outer track 212. As the winding disc 2 continues to rotate counterclockwise, the movable member 4 is always located on the outer track 212.

[0048] The cooperation between the third guiding surface 53 and the first guiding surface 62 ensures a smooth transition when the movable member 4 moves from the inner track 211 to the outer track 212, reducing the vibration and impact of the movable member 4 during movement and protecting the overall structure of the cable winding device.

[0049] In some embodiments of the present application, one side of the outer track 212 close to the limiting block 6 has a second guiding surface 22. The second guiding surface 22 can guide the movable member 4 to move towards the first guiding surface 51, and cooperate with the first guiding surface 51 to guide towards the limiting groove 61. Specifically, when the winding disc 2 rotates counterclockwise, the movable member 4 moves on the outer track 212. As the movable member 4 gradually approaches the limiting block 6, the second guiding surface 22 on the outer track 212 begins to function. Through its specific inclination angle or curved surface design, it guides the movable member 4 to move towards the first guiding surface 51 on the limiting block 6. When the movable member 4 contacts the first guiding surface 51, the cable is released, and the elastic member 3 drives the winding disc 2 to rotate clockwise to reset. Through the mutual cooperation of the second guiding surface 22 and the first guiding surface 51, they jointly guide the movable member 4 to move along the predetermined trajectory towards the limiting groove 61 to ensure that the movable member 4 can smoothly and precisely enter the limiting groove 61 to complete the limiting lock for the user to use the cable released to the designated length. The second guiding surface 22 on the outer track 212, through close cooperation with the first guiding surface 51 on the limiting block 6, realizes precise guiding and positioning of the movable member 4 during movement, improving the performance stability and user experience of the cable winding device.

[0050] In some embodiments of the present application, the base 1 is provided with a strip-shaped groove 11, and the movable member 4 can perform a linear motion along a specified trajectory within the strip-shaped groove 11. Specifically, the strip-shaped groove 11 provides a clear and stable motion trajectory for the movable member 4. When the wire winding disc 2 rotates and drives the movable member 4 to move, the strip-shaped groove 11 ensures that the movable member 4 can move along a predetermined linear trajectory without deviating from the path or generating unnecessary shaking. The existence of the strip-shaped groove 11 actually plays a guiding and limiting role, enabling the movable member 4 to maintain a stable posture and direction during the movement.

[0051] The linear motion of the movable member 4 within the strip-shaped groove 11 is combined with its trajectory motion within the special-shaped groove 21 to jointly realize the cable winding and unwinding functions of the cable winding device. The design of the strip-shaped groove 11 makes the movable member 4 more stable during the movement, reducing the problems of device failure or performance degradation that may be caused by shaking or deviating from the path.

[0052] It should be noted that as Figure 5 shown, G1 is the movement trajectory of the movable member 4 within the inner track 211 when winding the cable; G2 is the movement trajectory of the movable member 4 within the outer track 212 when pulling out and releasing the cable outward. L1 is the changing route of the movable member 4 moving from the inner track 211 to the outer track 212 when pulling out and releasing the cable outward; L2 is the route of the movable member 4 moving towards the limiting groove 61 when the elastic member 3 drives the wire winding disc 2 to rotate clockwise after the cable is pulled out to a specified length and the cable is released, and the movement route of the movable member 4 moving from the limiting groove 61 to the inner track 211 when winding the cable and the wire winding disc 2 rotates counterclockwise. Point A is the position where the movable member 4 is limited and locked in the limiting groove 61; Point B is the position where the movable member 4 can move towards the limiting groove 61 through the cooperation of the second guiding surface 22 and the first guiding surface 51.

[0053] In some embodiments of the present application, as Figure 4 shown, the movable member 4 is a ball. Specifically, using the ball as the movable member 4, it rolls and moves within the strip-shaped groove 11 on the base 1 and the special-shaped groove 21 at the bottom of the wire winding disc 2. Compared with sliding friction, rolling friction has a smaller resistance, enabling the ball to move more smoothly along the predetermined trajectory. When the wire winding disc 2 rotates to drive the cable winding and unwinding, the ball can quickly respond and change its position. Its low friction characteristic and high sensitivity ensure that the ball can reach the predetermined position in a timely manner, realizing the precise control of the cable.

[0054] Since the ball moves in a rolling friction manner, compared with sliding friction, the friction resistance is significantly reduced, reducing the energy consumption of the cable winding device during operation. The high hardness, wear resistance, and low friction characteristics of the ball make it not easily worn during long-term operation, improving the durability and service life of the cable winding device.

[0055] In some embodiments of the present application, there are two guiding portions 5, and there are also two connection points between the inner track 211 and the outer track 212. Limit blocks 6 are provided at both connection points. Specifically, when the wire winding disc 2 rotates, the movable member 4 moves within the special-shaped groove 21. Due to the existence of two guiding portions 5, the movable member 4 can be more stable in the conversion between the inner track 211 and the outer track 212, and ensure that it can be accurately guided to the limit block 6 for limit locking when needed. Moreover, the setting of the two connection points allows the movable member 4 to enter the limit block 6 at two different positions, providing more flexibility and reliability. When the movable member 4 cooperates with the limit block 6, the design of the two limit blocks 6 can help disperse the force, reduce the pressure and wear that a single limit block 6 may bear, thereby extending the service life of the entire cable winding device.

[0056] The existence of the two guiding portions 5 and the two limit blocks 6 makes the entire cable winding device more stable when controlling the cable winding and unwinding. Even if one of the guiding portions 5 or the limit blocks 6 fails, the other can still continue to work and maintain the basic function of the device.

[0057] More guiding and limiting points mean that the movable member 4 can be more precisely controlled during the movement process. It helps to achieve a more accurate cable winding and unwinding length, meeting the different needs of users. Thereby increasing the number of lengths of the cable that can be pulled out and locked. For example, when the cable is wound around the wire winding disc 2 for five turns, if there is one connection between the outer track 212 and the inner track 211, and the number of the guiding portion 5 and the limit block 6 is one, then only four different degrees of cable pulling can be locked; if there are two connections between the outer track 212 and the inner track 211, and the number of both the guiding portion 5 and the limit block 6 is two, then eight different degrees of cable pulling can be locked.

[0058] In other embodiments, in order to increase the number of lengths of the cable that can be pulled out and locked, the number of connections between the outer track 212 and the inner track 211, as well as the number of the guiding portion 5 and the limit block 6, can be set to 3, 4, 5 or 6.

[0059] In some embodiments of the present application, the wire winding disc 2 and the base 1 are also detachably connected. Specifically, the detachable connection between the wire winding disc 2 and the base 1 allows the user to easily disassemble and install the wire winding disc 2 according to needs, without complex disassembly of the entire cable winding device, reducing the maintenance cost and time. At the same time, the detachable design also facilitates the cleaning and maintenance of the wire winding disc 2, keeping it in good working condition.

[0060] In addition, according to different usage scenarios and requirements, users can conveniently replace the wire reel 2 of different specifications or materials. For example, for occasions that require winding thicker or longer cables, a wire reel 2 with a larger diameter or larger capacity can be selected. This improves the flexibility of use, enabling the cable winding device to adapt to a wider range of applications.

[0061] As Figure 8 and Figure 9 shown, a wireless charger has a power cord 8 for input and / or output, includes the above-mentioned cable winding device, and the power cord 8 is wound around the wire reel 2 of the cable winding device. Specifically, the power cord 8 of the wireless charger 7 is wound around the wire reel 2 of the cable winding device. When the user needs to use the wireless charger 7, the required length of the power cord 8 can be easily pulled out; after use, the power cord 8 can be quickly stored by the cable winding device. This improves the convenience of power cord 8 management. Users no longer need to manually wind and organize the power cord 8, saving time and effort. Secondly, since the power cord 8 is neatly stored in the winding device, it avoids safety hazards caused by the messy power cord 8, reduces the risk of damage to the power cord 8, and extends the service life of the device.

[0062] A power device has a power cord for input and / or output, includes the above-mentioned cable winding device, and the power cord is wound around the cable winding device. Specifically, through the effective management of the cable winding device, the power cord can automatically retract onto the wire reel 2 when not in use, avoiding the random scattering and knotting of the power cord, and keeping the power device clean and beautiful.

[0063] It should be noted that the power device includes but is not limited to: chargers, mobile power supplies, speakers, routers, modems, TVs, monitors, audio devices, photographic and video devices.

[0064] It should be understood that for those of ordinary skill in the art, improvements or changes can be made according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A cable winding device, characterized in that: The utility model comprises a base, a wire winding drum rotatably arranged on the base, and an elastic member driving the wire winding drum to reset; the base is movably provided with a movable member cooperating with the wire winding drum; when releasing the cable, the wire winding drum rotates under the action of the pulling force, the elastic member is deformed, and the movable member moves on the base and cooperates with the wire winding drum, so as to lock the wire winding drum to keep the cable in a pulled-out state; when winding the cable, the wire winding drum is pulled to rotate, so as to drive the movable member to move and unlock the wire winding drum, and after unlocking, the elastic member releases the potential energy to drive the wire winding drum to reverse and reset to wind up the cable.

2. A cable winding device according to claim 1, characterized in that: A special-shaped groove is provided at the bottom of the winding drum, and at least one guide part is arranged in the special-shaped groove. The guide part divides the special-shaped groove into an inner track and an outer track which are connected at least one place. A limit block is arranged at the connection point. One end of the guide part cooperates with the outer track to guide the movable part to move toward the limit block to limit the position, and guides the movable part to move toward the inner track; the other end of the guide part cooperates with the limit block to guide the movable part to move toward the outer track.

3. A cable winding device according to claim 2, characterized in that: The limit block has a limit groove for accommodating the movable part and a first guide surface for guiding the movable part to move toward the outer track; the guide portion has a first guide surface and a second guide surface at one end facing the limit groove, which are respectively used to guide the movable part from the outer track toward the limit groove and from the limit groove toward the inner track.

4. A cable winding device according to claim 3, characterized in that: The guide portion has a third guide surface at one end facing the outer rail, and the third guide surface matches the first guide surface.

5. A cable winding device according to claim 4, characterized in that: The outer track has a second guide surface on one side close to the limiting block, and the second guide surface can guide the movable part to move toward the first guide surface, and cooperate with the first guide surface to guide it toward the limiting groove.

6. A cable winding device according to claim 5, characterized in that: The base is provided with a strip groove, and the movable part can perform linear motion along a specified track in the strip groove.

7. A cable winding device according to any one of claims 1 to 6, characterized in that: The movable part is a ball.

8. A cable winding device according to any one of claims 2 to 6, characterized in that: There are two guide parts, and there are also two connecting points between the inner track and the outer track. The two connecting points are both provided with the limiting blocks.

9. A wireless charger having a power cord for input and / or output, characterized in that: The cable winding device comprises the cable winding device as described in any one of claims 1 to 8, wherein the power cord is wound on a winding drum of the cable winding device.

10. A power supply device having a power line for input and / or output, characterized in that: The cable winding device comprises the cable winding device as described in any one of claims 1 to 8, wherein the power cord is wound on a winding drum of the cable winding device.

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