Winding structure and charging equipment

Abstract

The utility model relates to the technical field of digital products, in particular to a coiling structure and charging equipment, which comprises a shell, a coiling roll, a data line and a slip ring assembly, the coiling roll, the data line and the slip ring assembly are arranged in the shell, a part of the slip ring assembly is embedded in one side of the coiling roll, the data line is wound on the other side of the coiling roll, and the data line is connected with the data line. The shell is provided with at least two first connecting ports, the end part of the data line is provided with a first connecting end and is electrically connected with the slip ring assembly through the first connecting end, and the slip ring assembly is exposed out of the shell through one of the first connecting ports; a first guide rail is arranged on the winding roll around the periphery of the sliding ring assembly, a rotatable limiting piece is arranged on the face, close to the winding roll, of the shell, and the limiting piece is connected with the first guide rail in a matched mode. The winding structure provided by the utility model can solve the technical problems of complex structure and inflexible arrangement of the data line connecting end of the existing winder.

Description

[Technical Field]

[0001] This utility model relates to the field of digital product technology, and in particular to a coil structure and a charging device. [Background Technology]

[0002] With the continuous development of digital technology, the variety of digital products is becoming increasingly diverse. Although the functions and uses of each product are different, the issue of charging is unavoidable. While wireless charging designs have emerged in the market, the vast majority of digital products still use wired charging, mainly because wired charging is reliable. As a result, there are various types of charging cables on the market, and the length of the charging cable is chosen according to the user's actual needs. Although longer charging cables can solve many convenience problems, they also present the problem of inconvenience in collecting them. Currently, products that use cable reels to recycle data cables have also appeared, but existing cable reels have problems such as complex structures and inflexible settings for data cable connection ends. [Utility Model Content]

[0003] To address the technical problems of existing cable reels having complex structures and inflexible data cable connection settings, this utility model provides a cable reel structure and a charging device.

[0004] The present invention provides a cable winding structure, comprising a housing and a cable reel, a data cable, and a slip ring assembly disposed within the housing. The slip ring assembly is partially embedded on one side of the cable reel, and the data cable is wound around the other side of the cable reel. At least two first connection ports are provided on the housing. The data cable has a first connection end at its end, which is electrically connected to the slip ring assembly. The slip ring assembly is exposed outside the housing through one of the first connection ports. A first guide rail is formed around the outer periphery of the slip ring assembly on the cable reel. A rotatable limiting member is provided on the side of the housing near the cable reel. The limiting member cooperates with the first guide rail. When the cable reel rotates, the limiting member slides within the first guide rail and stops the cable reel during reverse rotation.

[0005] Preferably, the slip ring assembly includes a first circuit board and a second circuit board. The first circuit board is embedded in the reel and electrically connected to the first connection end. The second circuit board is disposed on the housing. The first circuit board is provided with an elastic conductive terminal, and the second circuit board is provided with a second guide rail. The second guide rail is annular. When the reel rotates, the first circuit board and the second circuit board are slidably electrically connected to the second guide rail through the elastic conductive terminal.

[0006] Preferably, the data cable further includes a wire and a second connection end, the second connection end being disposed on the end of the wire away from the first connection end, the housing including an upper housing and a lower housing, the first connection port being opened on the upper housing / the lower housing, and a second connection port being opened on the upper housing and / or the lower housing, the second connection end being exposed at the second connection port; the first connection port and the second connection port are located on different sides of the housing.

[0007] Preferably, a snap-fit ​​structure is provided on either the upper housing or the lower housing, and a snap-fit ​​hole is correspondingly provided on the other housing, with the snap-fit ​​structure and the snap-fit ​​hole being connected accordingly; the snap-fit ​​structure is provided to avoid the first connection port and the second connection port.

[0008] Preferably, a mounting shaft is provided on either side of the contact surface between the upper housing and the lower housing, the mounting shaft being perpendicular to the winding reel, and a mounting hole is provided on the other side, with the mounting shaft and the mounting hole correspondingly connected.

[0009] Preferably, the slip ring assembly is non-circular, and a groove corresponding to the slip ring assembly is formed on the winding spool, with the slip ring assembly fixedly connected in the groove.

[0010] Preferably, an installation groove is formed on the upper housing corresponding to the position of the limiting member. One end of the limiting member is connected to the installation groove, and at least one limiting post is provided at the other end. The area inside the installation groove is larger than the area of ​​the limiting member. The limiting post slides in the first guide rail, and the limiting member deflects as the limiting post slides.

[0011] Preferably, the first guide rail is configured as an annular structure and at least one limiting structure is provided on the first guide rail. The limiting structure abuts against the side wall of the first guide rail and the side wall of the mounting groove through the limiting post, thereby stopping the position of the winding reel.

[0012] Preferably, it further includes a coil spring, which is located on the side of the coil close to the data cable, and the data cable is arranged around the outer periphery of the coil spring; a fixing part is provided on the side of the coil close to the data cable, and one end of the outer coil spring and one end of the cable away from the second connection end are fixed in the fixing part; the center of the coil spring is connected to the lower housing.

[0013] Another solution to the technical problem of this utility model is to provide a charging device, including the above-mentioned winding structure.

[0014] Compared with the prior art, the coil structure and charging device provided by this utility model have the following advantages:

[0015] 1. This utility model provides a cable winding structure. The cable winding structure provided by this utility model has a simple construction and directly provides a first connection port to connect to the data cable port. Specifically, at least two first connection ports are opened on the housing. When assembling the cable winding structure, a suitable first connection port is selected as the position of the slip ring assembly. The first connection end serves as the input / output end of the cable winding structure. Users can connect to the first connection end through the slip ring assembly at the required position, which is convenient and quick. When the data cable is pulled out, it drives the cable winding reel to rotate synchronously. The first guide rail cooperates with the limiting member to limit the rotation trajectory of the cable winding reel when it rotates. During rotation, it prevents the two from disengaging and stops the cable winding reel after rotation stops to lock the relative position of the cable winding reel and the housing, preventing the cable winding reel from rotating in the opposite direction and improving the stability and safety of the user when using the data cable. When it is necessary to retract the data cable, the data cable is pulled out a little further to release the locking of the cable winding reel by the limiting member, and the data cable is retracted.

[0016] 2. The present invention provides a winding structure in which the first circuit board and the second circuit board are electrically connected through the elastic conductive terminal and the second guide rail when the winding reel rotates, thereby enabling the first connection end to be connected to the slip ring assembly exposed in the housing, and the user can connect the corresponding device to the first connection end through the slip ring assembly.

[0017] 3. The present invention provides a winding structure in which the first connecting end and the second connecting end serve as the output and input ends of the winding structure, respectively, and are located at both ends of the data cable, so that users can connect different devices or structures as needed. The second connecting end is exposed at the second connecting port so that users can connect directly.

[0018] 4. The winding structure provided by this utility model has a snap-fit ​​structure on the upper and lower shells, which enables the two to be installed stably and securely, and avoids the internal components from shifting due to loosening of the shell during use, thus affecting the use.

[0019] 5. The winding structure provided by this utility model, with the shaft hole matching structure of the upper and lower shells, can make the connection between the two more stable, and further limit the range of displacement, thereby enhancing the stability and safety of the shell during operation.

[0020] 6. The present invention provides a winding structure in which the slip ring assembly is non-circular, which can be more firmly embedded in the winding spool and can rotate more stably with the winding spool, thus avoiding relative sliding between the slip ring assembly and the winding spool.

[0021] 7. The present invention provides a winding structure in which the limiting member can move within the range limited by the mounting groove, thereby controlling the position of the limiting post through the combined action of the first guide rail and the mounting groove. When locking the winding reel, the limiting post is located at the position where the first guide rail and the side wall of the mounting groove jointly abut against each other, thereby restricting the movement of the limiting post and achieving locking.

[0022] 8. The present invention provides a winding structure in which a limiting post abuts against the side wall of the first guide rail and the side wall of the mounting groove to increase the frictional force on the limiting post, thereby stopping the winding reel and restricting the reverse rotation of the winding reel.

[0023] 9. The present invention provides a winding structure in which the coil spring provides rotational force to the data cable when the data cable is retracted into the housing, thereby realizing the rapid rewinding operation of the winding structure and enhancing the stability of the overall structure.

[0024] 10. The charging device provided by this utility model has similar beneficial effects to the above-mentioned winding structure, and will not be described in detail here. [Attached Image Description]

[0025] Figure 1 This is a schematic diagram of a winding structure provided in the first embodiment of this utility model.

[0026] Figure 2 This is an exploded view of a coil structure provided in the first embodiment of this utility model.

[0027] Figure 3 This is an exploded view of the cable reel, sliding assembly, data cable, and coil spring provided in the first embodiment of this utility model.

[0028] Figure 4 This is a schematic diagram of the upper shell structure provided in the first embodiment of this utility model.

[0029] Figure 5 This is a cross-sectional schematic diagram of a coil structure provided in the first embodiment of this utility model.

[0030] Explanation of reference numerals in the attached diagram:

[0031] 1. Cable reel; 2. Housing; 3. Data cable; 4. Slip ring assembly; 5. Coil spring;

[0032] 11. First guide rail; 12. Groove; 13. Fixing part; 21. First connection port; 22. Limiting component; 23. Upper housing; 24. Lower housing; 25. Second connection port; 26. Snap-fit ​​structure; 27. Snap-fit ​​hole; 28. Mounting shaft; 29. ​​Mounting hole; 31. First connection end; 32. Second connection end; 33. Wire; 41. First circuit board; 42. Second circuit board;

[0033] 111. Limiting structure; 121. Connecting hole; 221. Limiting post; 231. Mounting groove; 241. Mounting post; 242. Fixing groove; 411. Elastic conductive terminal; 412. First connecting part; 421. Second guide rail; 422. Second connecting part.

Detailed Implementation Methods

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0035] It should be noted that the terms "first" and "second" in the specification and claims of this utility model are used to distinguish different objects, rather than to describe a specific order.

[0036] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0037] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0038] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0039] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0040] Please see Figure 1 , Figure 2 and Figure 3The first embodiment of this utility model provides a cable winding structure, including a housing 2 and a cable reel 1, a data cable 3, and a slip ring assembly 4 disposed in the housing 2. Part of the slip ring assembly 4 is embedded in one side of the cable reel 1, and the data cable 3 is wound around the other side of the cable reel 1. At least two first connection ports 21 are opened on the housing 2. The end of the data cable 3 is provided with a first connection end 31 and is electrically connected to the slip ring assembly 4 through the first connection end 31. The slip ring assembly 4 is exposed in the housing 2 through one of the first connection ports 21. A first guide rail 11 is opened around the outer periphery of the slip ring assembly 4 on the cable reel 1. A rotatable limiting member 22 is provided on the side of the housing 2 near the cable reel 1. The limiting member 22 is connected to the first guide rail 11. When the cable reel 1 rotates, the limiting member 22 slides in the first guide rail 11 and stops the cable reel 1 during reverse rotation.

[0041] Understandably, the housing 2 has at least two first connection ports 21. When assembling the cable winding structure, a suitable first connection port 21 can be flexibly selected as the exposed position of the slip ring assembly 4 to adapt to different installation requirements and scenarios. The first connection end 31 serves as the input / output end of the data cable 3. Users can connect to the first connection end 31 through the slip ring assembly 4 at the required position, which is convenient and quick. When the data cable 3 is pulled out, it drives the cable reel 1 to rotate synchronously. The first guide rail 11 cooperates with the limiting member 22. When the cable reel 1 rotates, the limiting member 22 limits the rotation trajectory of the cable reel 1, preventing the two from disengaging during rotation and locking the cable reel 1 after rotation stops to lock the relative position of the cable reel 1 and the housing 2, preventing the cable reel 1 from rotating in the opposite direction, and improving the stability and safety of the user when using the data cable 3. When it is necessary to retract the data cable 3, the data cable 3 is pulled out a little further to release the locking of the limiting member 22 on the cable reel 1, and the data cable 3 can be quickly retracted. In summary, the cable winding structure provided by this utility model features a slip ring assembly 4 exposed in one of the first connection ports 21. Users can directly connect the corresponding device or interface to the slip ring assembly to achieve electrical connection with the data cable 3. Connection and disassembly are both quicker and easier for users to use.

[0042] Furthermore, the slip ring assembly 4 includes a first circuit board 41 and a second circuit board 42. The first circuit board 41 is embedded in the reel 1 and electrically connected to the first connecting end 31. The second circuit board 42 is disposed on the housing 2. The first circuit board 41 is provided with an elastic conductive terminal 411, and the second circuit board 42 is provided with a second guide rail 421. The second guide rail 421 is annular. When the reel 1 rotates, the first circuit board 41 and the second circuit board 42 are slidably electrically connected to the second guide rail 421 through the elastic conductive terminal 411. The first circuit board 41 and the second circuit board 42 maintain an electrical connection through the elastic conductive terminal 411 and the second guide rail 421 when the reel 1 rotates, thereby keeping the first connecting end 31 connected to the slip ring assembly 4 exposed in the housing 2. The user can connect the corresponding device or interface to the first connecting end 31 through the slip ring assembly 4.

[0043] Furthermore, the centers of the first circuit board 41 and the second circuit board 42 coincide, the second guide rail 421 is arranged around the center of the second circuit board 42, and at least one elastic conductive terminal 411 is arranged on the path of the second guide rail 421. When the winding reel 1 rotates, it drives the first circuit board 41 to rotate around the center, while the elastic conductive terminal 411 slides in the second guide rail 421, restricting the relative position of the first circuit board 41 and the second circuit board 42 and preventing displacement.

[0044] It should be noted that multiple elastic conductive terminals 411 can be provided on the first circuit board 41, and the multiple elastic conductive terminals 411 are evenly distributed around the center of the first circuit board 41, so that the first circuit board 41 and the second circuit board 42 can rotate more stably and reduce the wear on the second guide rail 421.

[0045] In this embodiment, three elastic conductive terminals 411 are evenly arranged on the first circuit board 41. When the first circuit board 41 rotates, the elastic conductive terminals 411 can play a stable and uniform limiting role on the second guide rail 421.

[0046] It should be noted that the positions of the elastic conductive terminal 411 and the second guide rail 421 are interchangeable.

[0047] Furthermore, the slip ring assembly 4 is non-circular, and a groove 12 corresponding to the slip ring assembly is formed on the reel 1, in which the slip ring assembly 4 is fixedly connected. The non-circular design of the slip ring assembly 4 allows it to be more securely embedded in the reel 1 and to rotate more stably and synchronously with the reel 1 by abutting against the sidewall of the groove 12 with its edge, thus preventing relative sliding between the slip ring assembly 4 and the reel 1.

[0048] In this embodiment, a connection hole 121 is provided at the bottom of the groove 12, and a first connection part 412 is provided at the end of the first circuit board 41. The first connection part 412 is electrically connected to the first connection end 31 through the connection hole 121.

[0049] Furthermore, on the side of the second circuit board 42 away from the first circuit board 41, a second connecting portion 422 extends from the end, and the shape of the second connecting portion 422 is configured to match the first connecting port 21, so that the second connecting portion 422 can be exposed from the first connecting port 21. The winding structure is electrically connected to the corresponding device through the exposed first connecting portion 412. When the winding reel 1 rotates, the positions of the first connecting port 21 and the second connecting portion 422 remain fixed to maintain a stable connection relationship between the winding structure and the corresponding device.

[0050] Furthermore, the first connection port 21 is provided at the edge of the housing 2, so that the second connection portion 422 extends to the edge of the housing 2 and is exposed for connection.

[0051] It should be noted that the sliding component 4 serves as the component connecting the data line 3 to the device or interface corresponding to the winding structure. The current in the data line 3 passes sequentially through the first connecting end 31, the first connecting part 412, the elastic conductive terminal 411, the second guide rail 421, and the second connecting part 422 before being transmitted to the corresponding device or interface.

[0052] Furthermore, the data cable 3 also includes a wire 33 and a second connection end 32. The second connection end 32 is disposed on the end of the wire 33 away from the first connection end 31. The first connection end 31 and the second connection end 32 serve as the output and input ends of the data cable 3, respectively, so that users can connect different devices or structures as needed.

[0053] Furthermore, the housing 2 includes an upper housing 23 and a lower housing 24. A first connection port 21 is formed on the upper housing 23 / lower housing 24. A second connection port 25 is formed on the upper housing 23 and / or the lower housing 24. A second connection end 32 is exposed through the second connection port 25 so that the user can directly pull the wire 33 out of the housing 2 through the second connection end 32.

[0054] It should be noted that the first connection port 21 and the second connection port 25 are located on different sides of the housing 2, which facilitates flexible connection by the user and reduces the risk of reducing the strength of the housing 2 due to the opening of multiple connection ports.

[0055] In this embodiment, the first connection port 21 is opened on the edge of the upper housing 23, and the second connection port 25 is opened on the side of the upper housing 23 and the lower housing 24, so that the wire 33 can be pulled out and retracted from the side of the housing 2.

[0056] Please see Figure 2 , Figure 3 and Figure 4A mounting groove 231 is formed on the upper housing 23 at the position corresponding to the limiting member 22. One end of the limiting member 22 is connected to the mounting groove 231, and at least one limiting post 221 is provided at the other end. The area inside the mounting groove 231 is larger than the area of ​​the limiting member 22. The limiting post 221 slides within the first guide rail 11, and the limiting member 22 deflects as the limiting post 221 slides. The limiting member 22 can move within the range restricted by the mounting groove 231, thereby controlling the position of the limiting post 221 through the combined action of the first guide rail 11 and the mounting groove 231. When locking the reel 1, the limiting post 221 is located at the position where the first guide rail 11 and the side wall of the mounting groove 231 abut against each other, thereby restricting the movement of the limiting post 221 and realizing the locking of the reel 1.

[0057] Furthermore, the first guide rail 11 is configured as a ring and at least one limiting structure 111 is provided on the first guide rail 11. The limiting structure 111 abuts against the side wall of the first guide rail 11 and the side wall of the mounting groove 231 through the limiting post 221, thereby stopping the winding reel 1.

[0058] Understandably, the limiting structure 111 widens the spacing of the first guide rail 11 to hold the limiting post 221 against the side wall of the first guide rail 11 and the side wall of the mounting groove 231, thereby increasing the friction force on the limiting post 221 to stop the winding reel 1 and restrict the reverse rotation of the winding reel 1. When retrieving the wire 33, after the data cable 3 is pulled outward for a while, the limiting post 221 is released from the limiting structure 111, releasing the restriction of the first guide rail 11 and the mounting groove 231 on the limiting post 221, so that the data cable 3 can be quickly retrieved into the housing 2.

[0059] Furthermore, a snap-fit ​​structure 26 is provided on either the upper housing 23 or the lower housing 24, and a corresponding snap-fit ​​hole 27 is provided on the other housing. The snap-fit ​​structure 26 is connected to the snap-fit ​​hole 27. The cooperation between the snap-fit ​​structure 26 and the snap-fit ​​hole 27 ensures that the upper housing 23 and the lower housing 24 are installed stably and securely, preventing the housing 2 from becoming loose during use and causing internal components to shift, thus affecting its use.

[0060] Understandably, the snap-fit ​​structure 26 and snap-fit ​​hole 27 are set to avoid the first connection port 21 and the second connection port 25, so as to reduce the impact of opening the first connection port 21 and the second connection port 25 on the stability of the snap-fit ​​connection relationship and enhance the stability of the connection relationship between the upper housing 23 and the lower housing 24.

[0061] Furthermore, a mounting shaft 28 is provided on either of the contact surfaces of the upper housing 23 and the lower housing 24. The mounting shaft 28 is perpendicular to the winding reel 1, and a mounting hole 29 is provided on the other surface. The mounting shaft 28 and the mounting hole 29 are correspondingly connected. The shaft-hole mating structure of the upper housing 23 and the lower housing 24 makes the connection between the two more stable and further limits the range of displacement, enhancing the stability and safety of the housing 2 during operation.

[0062] Please see Figure 2 , Figure 3 and Figure 5 The winding structure also includes a coil spring 5, which is located on the side of the winding reel 1 near the data cable 3, and the data cable 3 is arranged around the outer periphery of the coil spring 5; a fixing part 13 is provided on the side of the winding reel 1 near the data cable 3, and one end of the outer side of the coil spring 5 and the end of the cable 33 away from the second connecting end 32 are fixed in the fixing part 13; the center of the coil spring 5 is connected to the lower housing 24.

[0063] Understandably, the two ends of the coil spring 5 are respectively connected to the lower housing 24 and the fixing part 13. When the data cable 3 is pulled out, the winding reel 1 rotates, and the fixing part 13 drives the coil spring 5 to stretch synchronously. When the data cable 3 is retracted into the housing 2, the coil spring 5 contracts under the action of elasticity, providing rotational force for the data cable 3, thus realizing the rapid rewinding operation of the data cable 3.

[0064] It should be noted that the fixing part 13 is located on the side of the coil 1 near the lower housing 24. The fixing part 13 is arc-shaped. The coil spring 5 is located inside the fixing part 13, and the outer end of the coil spring 5 is connected to the fixing part 13. The wire 33 is arranged around the outside of the fixing part 13. The connecting hole 121 communicates with the fixing part 13. The first connecting end 31 is connected in the fixing part 13 and exposed in the connecting hole 121 to connect to the sliding component 4. The coil 1 only needs to set the data cable 3 on one side, which reduces the overall thickness of the coil structure and makes it convenient for users to use.

[0065] Furthermore, a mounting post 241 is provided at the center of the lower housing 24. The coil spring 5, the winding reel 1, the slip ring assembly 4, and the upper housing 23 are stacked on the mounting post 241 in sequence. When the data cable 3 rotates, it drives the winding reel 1 and the first circuit board 41 to rotate around the mounting post 241. At the same time, the coil spring 5, the second circuit board 42, and the upper housing 23 are fixedly connected to the lower housing 24 through the mounting post 241.

[0066] Furthermore, a fixing groove 242 is provided at the center of the mounting column 241, and the center of the coil spring 5 is fixed in the fixing groove 242 to prevent relative sliding between the coil spring 5 and the lower housing 24.

[0067] Please see Figures 1 to 5 The working principle of the winding structure provided in the first embodiment of this utility model is briefly described as follows:

[0068] The winding mechanism connects to corresponding devices or interfaces via the second connecting part 422 and the second connecting end 32 as input / output terminals. The first connecting end 32 is electrically connected to the second circuit board 42 via the first circuit board 41 and to the corresponding device or interface via the second connecting part 422 on the second circuit board 42. When the data cable 3 is pulled out of the housing 2 via the second connecting end 32, the cable 22 pulls the winding reel 1 to rotate and the coil spring 5 to stretch via the fixing part 13. After being pulled out, the limiting structure 111 stops the winding reel 1 by resisting the limiting member 22, so that the length of the pulled-out data cable 3 is fixed, which is convenient for users. When retracting the data cable 3, after the data cable 3 is pulled out to a certain extent, it contacts the cooperation between the limiting member 22 and the limiting structure 111. Under the elastic force of the coil spring 5, the data cable 3 is quickly retracted into the housing 2.

[0069] Please see Figure 1 and Figure 3 The second embodiment of this utility model provides a charging device, including the cable winding structure provided in the first embodiment. When using the charging device, the power supply and the corresponding device are connected via a data cable 3, which is stored on the cable winding reel 1, saving space.

[0070] Compared with the prior art, the coil structure and charging device provided by this utility model have the following advantages:

[0071] 1. This utility model provides a cable winding structure. The cable winding structure provided by this utility model has a simple construction and directly provides a first connection port to connect to the data cable port. Specifically, at least two first connection ports are opened on the housing. When assembling the cable winding structure, a suitable first connection port is selected as the position of the slip ring assembly. The first connection end serves as the input / output end of the cable winding structure. Users can connect to the first connection end through the slip ring assembly at the required position, which is convenient and quick. When the data cable is pulled out, it drives the cable winding reel to rotate synchronously. The first guide rail cooperates with the limiting member to limit the rotation trajectory of the cable winding reel when it rotates. During rotation, it prevents the two from disengaging and stops the cable winding reel after rotation stops to lock the relative position of the cable winding reel and the housing, preventing the cable winding reel from rotating in the opposite direction and improving the stability and safety of the user when using the data cable. When it is necessary to retract the data cable, the data cable is pulled out a little further to release the locking of the cable winding reel by the limiting member, and the data cable is retracted.

[0072] 2. The present invention provides a winding structure in which the first circuit board and the second circuit board are electrically connected through the elastic conductive terminal and the second guide rail when the winding reel rotates, thereby enabling the first connection end to be connected to the slip ring assembly exposed in the housing, and the user can connect the corresponding device to the first connection end through the slip ring assembly.

[0073] 3. The present invention provides a winding structure in which the first connecting end and the second connecting end serve as the output and input ends of the winding structure, respectively, and are located at both ends of the data cable, so that users can connect different devices or structures as needed. The second connecting end is exposed at the second connecting port so that users can connect directly.

[0074] 4. The winding structure provided by this utility model has a snap-fit ​​structure on the upper and lower shells, which enables the two to be installed stably and securely, and avoids the internal components from shifting due to loosening of the shell during use, thus affecting the use.

[0075] 5. The winding structure provided by this utility model, with the shaft hole matching structure of the upper and lower shells, can make the connection between the two more stable, and further limit the range of displacement, thereby enhancing the stability and safety of the shell during operation.

[0076] 6. The present invention provides a winding structure in which the slip ring assembly is non-circular, which can be more firmly embedded in the winding spool and can rotate more stably with the winding spool, thus avoiding relative sliding between the slip ring assembly and the winding spool.

[0077] 7. The present invention provides a winding structure in which the limiting member can move within the range limited by the mounting groove, thereby controlling the position of the limiting post through the combined action of the first guide rail and the mounting groove. When locking the winding reel, the limiting post is located at the position where the first guide rail and the side wall of the mounting groove jointly abut against each other, thereby restricting the movement of the limiting post and achieving locking.

[0078] 8. The present invention provides a winding structure in which a limiting post abuts against the side wall of the first guide rail and the side wall of the mounting groove to increase the frictional force on the limiting post, thereby stopping the winding reel and restricting the reverse rotation of the winding reel.

[0079] 9. The present invention provides a winding structure in which the coil spring provides rotational force to the data cable when the data cable is retracted into the housing, thereby realizing the rapid rewinding operation of the winding structure and enhancing the stability of the overall structure.

[0080] 10. The charging device provided by this utility model has similar beneficial effects to the above-mentioned winding structure, and will not be described in detail here.

[0081] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coil structure, characterized in that: The device includes a housing and a cable reel, a data cable, and a slip ring assembly disposed within the housing. The slip ring assembly is partially embedded on one side of the cable reel, and the data cable is wound around the other side of the cable reel. The housing has at least two first connection ports, and the data cable has a first connection end at its end, which is electrically connected to the slip ring assembly. The slip ring assembly is exposed outside the housing through one of the first connection ports. A first guide rail is formed around the outer periphery of the slip ring assembly on the reel. A rotatable limiting member is provided on the side of the housing near the reel. The limiting member is connected to the first guide rail. When the reel rotates, the limiting member slides within the first guide rail and stops the reel during reverse rotation.

2. The winding structure as described in claim 1, characterized in that: The slip ring assembly includes a first circuit board and a second circuit board. The first circuit board is embedded in the reel and electrically connected to the first connection end. The second circuit board is disposed on the housing. The first circuit board is provided with an elastic conductive terminal, and the second circuit board is provided with a second guide rail. The second guide rail is annular. When the reel rotates, the first circuit board and the second circuit board are slidably electrically connected to the second guide rail through the elastic conductive terminal.

3. The winding structure as described in claim 2, characterized in that: The data cable also includes a wire and a second connection end, the second connection end being disposed on the end of the wire away from the first connection end. The housing includes an upper housing and a lower housing, the first connection port being opened on the upper housing / the lower housing, and a second connection port being opened on the upper housing and / or the lower housing, the second connection end being exposed at the second connection port; the first connection port and the second connection port are located on different sides of the housing.

4. The winding structure as described in claim 3, characterized in that: A snap-fit ​​structure is provided on either the upper housing or the lower housing, and a corresponding snap-fit ​​hole is provided on the other housing. The snap-fit ​​structure is connected to the snap-fit ​​hole. The snap-fit ​​structure is set to avoid the first connection port and the second connection port.

5. A winding structure as described in claim 4, characterized in that: A mounting shaft is provided on either side of the contact surface between the upper housing and the lower housing. The mounting shaft is perpendicular to the winding reel, and a mounting hole is provided on the other side. The mounting shaft and the mounting hole are connected in a corresponding manner.

6. The winding structure as described in claim 1, characterized in that: The slip ring assembly is non-circular, and a groove corresponding to the slip ring assembly is formed on the winding spool, with the slip ring assembly fixedly connected in the groove.

7. A winding structure as described in claim 4, characterized in that: An installation groove is formed on the upper housing corresponding to the position of the limiting member. One end of the limiting member is connected to the installation groove, and at least one limiting post is provided at the other end. The area inside the installation groove is larger than the area of ​​the limiting member. The limiting post slides in the first guide rail, and the limiting member deflects as the limiting post slides.

8. A winding structure as described in claim 7, characterized in that: The first guide rail is configured as a ring and at least one limiting structure is provided on the first guide rail. The limiting structure abuts against the side wall of the first guide rail and the side wall of the mounting groove through the limiting post, thereby stopping the position of the winding reel.

9. A winding structure as described in claim 4, characterized in that: It also includes a coil spring, which is located on the side of the coil close to the data cable, and the data cable is arranged around the outer periphery of the coil spring; a fixing part is provided on the side of the coil close to the data cable, and one end of the outer part of the coil spring and one end of the cable away from the second connection end are fixed in the fixing part; the center of the coil spring is connected to the lower housing.

10. A charging device, characterized in that: Includes a winding structure as described in any one of claims 1-9.

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