Randomly-stretchable wire assembly

Abstract

The embodiment of the utility model provides a randomly-stretchable wire winding assembly. The randomly-stretchable wire winding assembly comprises a shell body, two wire winding assemblies and a circuit board assembly. The shell body comprises a containing cavity, a first wire outlet and a second wire outlet, and the first wire outlet and the second wire outlet are communicated with the containing cavity. The two winding assemblies are arranged in the containing cavity and are coaxially arranged along the shell body. Each winding assembly comprises a data line and a rotating part, the data line comprises a free end, the free ends of the two winding assemblies penetrate through the first line outlet and the second line outlet respectively, at least part of the data line is wound around the circumferential outer side of the rotating part, and the data line can be unwound from the rotating part so that the free ends can move in the direction away from the containing cavity. The circuit board assembly is arranged in the containing cavity, the circuit board assembly is clamped between the two winding assemblies, the two rotating pieces are connected to the circuit board assembly and can rotate relatively, and the two data lines are electrically connected through the circuit board assembly. And the flexibility of randomly pulling the telescopic wire assembly to adjust the length is improved.

Description

Technical Field

[0001] This application relates to the field of data cable technology, and in particular to a retractable cable assembly. Background Technology

[0002] With the rapid development of technology, mobile phones and other electronic devices are extremely common. Data cables, as electronic accessories used for charging or transmitting data, have a wide range of applications. In related technologies, data cables are often coiled and stored using retractable cable assemblies, but the two ends of the cable cannot be independently and freely pulled out, failing to meet users' needs for freely adjustable cable sizes. Utility Model Content

[0003] In view of this, the present application aims to provide a retractable cable assembly, in which both ends of the data cable can be pulled out independently and freely to improve the adjustment range of the data cable size.

[0004] To achieve the above objectives, embodiments of this application provide a retractable cable assembly, comprising:

[0005] The shell body includes a receiving cavity, a first cable outlet and a second cable outlet, wherein the first cable outlet and the second cable outlet are in communication with the receiving cavity;

[0006] Two winding assemblies are disposed in the receiving cavity and are coaxially arranged. Each winding assembly includes a data line and a rotating member. The data line includes a free end, and the free ends of the two winding assemblies are respectively passed through the first outlet and the second outlet. At least a portion of the data line is wound around the circumferential outer side of the rotating member, and the data line can be unwound from the rotating member so that the free end moves away from the receiving cavity.

[0007] A circuit board assembly is disposed in the receiving cavity, the circuit board assembly is sandwiched between the two winding assemblies, the two rotating members are rotatably connected to the circuit board assembly, and the two rotating members can rotate relative to each other, and the two data lines are electrically connected through the circuit board assembly.

[0008] In one embodiment, the circuit board assembly includes a circuit board and an electrical connector; the circuit board is provided with an annular contact groove, and the electrical connector is provided with a contact extending toward the circuit board, the contact extending into the contact groove and electrically connected to the contact groove; the circuit board and / or the electrical connector are disposed on the rotating member and electrically connected to the data line; the rotating member rotates to drive the contact to move along the contact groove.

[0009] In one embodiment, the circuit board assembly includes a circuit board and two electrical connectors, the circuit board is sandwiched between the two electrical connectors, the two electrical connectors are respectively disposed on the two rotating members, and the circuit board has contact grooves on the surfaces opposite to the two electrical connectors.

[0010] In one embodiment, the circuit board assembly includes two circuit boards and an electrical connector, the electrical connector being sandwiched between the two circuit boards, the two circuit boards being respectively disposed on two rotating members, and the electrical connector having a contact on each surface opposite to the two circuit boards.

[0011] In one embodiment, the circuit board assembly includes a circuit board and an electrical connector, the circuit board and the electrical connector being respectively disposed on two rotating members and in a relative state.

[0012] In one embodiment, the winding assembly includes a locking assembly, which includes a swing member, a limiting member, and a gear. The swing member and the limiting member are rotatably disposed on the housing body, and the gear is disposed on the rotating member and rotates with the rotating member. The limiting member is provided with a first groove, and the swing member is provided with a first protrusion that matches the gear and a second protrusion that matches the first groove.

[0013] The data cable is unwound from the rotating member under the action of external force, which drives the gear to rotate in the first direction. The gear pushes the first protrusion to make the swing member rotate, and the limiting member avoids the swing member.

[0014] When the external force disappears, the data cable is wound from the rotating member, causing the gear to rotate in the second direction. The gear pushes the first protrusion to make the swing member rotate, and the second protrusion is engaged in the first groove to prevent the swing member from rotating. The first direction and the second direction are opposite directions.

[0015] In one embodiment, the limiting member is provided with a second groove and a guide surface, the swing member is provided with a third protrusion, the second groove matches the second protrusion, and the guide surface is disposed between the first groove and the second groove;

[0016] The data cable continues to unwind from the rotating member under the action of external force, the gear rotates along the first direction, and the gear pushes the first protrusion to make the swing member rotate; during the rotation of the swing member, the second protrusion and / or the third protrusion abut against the guide surface to drive the limiting member to rotate.

[0017] In one embodiment, the limiting member rotates to bring the first groove closer to the second protrusion; when the external force disappears, the data cable continues to be wound from the rotating member, driving the gear to rotate in the second direction, and the gear pushes the first protrusion to make the swing member rotate, and during the rotation of the swing member, the second groove avoids the second protrusion.

[0018] In one embodiment, the first groove and the second groove are arranged at intervals along the circumference of the limiting member, and the number of the first groove, the second groove and the guide surface are the same.

[0019] In one embodiment, the second protrusion and / or the third protrusion are provided with an arc surface, and the second protrusion and / or the third protrusion abuts against the guide surface on the arc surface.

[0020] In one embodiment, the locking assembly includes an elastic portion disposed on the housing body, the elastic portion abutting against the swing member on the side away from the first protrusion; the gear rotates along the first direction or the second direction, pushing the first protrusion, driving the swing member to rotate, and the elastic portion undergoes elastic deformation.

[0021] In one embodiment, the housing body includes a rotating shaft that passes through the winding assembly and the circuit board assembly along the height direction of the housing body, and the rotating member rotates about the rotating shaft.

[0022] In one embodiment, the rotating member includes an axially extending mounting area and a circumferentially extending winding area; the rotating shaft passes through the mounting area, and the rotating member rotates about the rotating shaft to cause the data cable to be wound in the winding area.

[0023] In one embodiment, the winding assembly includes a spring sleeved on the pivot; both ends of the spring are fixed to the sidewall of the mounting area and the pivot, respectively; the data cable is unwound from the rotating component, and the spring undergoes elastic deformation; the spring returns to its elastic deformation, and the data cable is wound up under the elastic force of the spring.

[0024] The retractable cable assembly provided in this application features a compact design where two winding assemblies are coaxially arranged along the housing body, with the circuit board assembly sandwiched in the middle. This design improves the space utilization of the retractable cable assembly. The rotating parts facilitate the winding and unwinding of the data cable, making it easy to carry and store. The cable length can be freely adjusted, avoiding the inconvenience caused by the fixed length of traditional cables and improving ease of use. Furthermore, by sandwiching the circuit board assembly between the two winding assemblies, and connecting the two rotating parts to the circuit board assembly, which can rotate relative to each other, the two data cables are electrically connected through the circuit board assembly and are unaffected by rotation. Thus, the data cables at both ends can be pulled out independently without affecting each other, and each end of the data cable can be connected to the device at a suitable length, improving the range and flexibility of adjusting the data cable length of the retractable cable assembly. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the telescopic cable assembly in one embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the winding assembly in one embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the installation of the electrical connector and the circuit board in one embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the card slot component in one embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the positioning component in the unwinding state of the data cable in one embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the structure of the locking component in the locking state according to an embodiment of this application;

[0031] Figure 7 This is a schematic diagram of the positioning component in the data cable winding state in one embodiment of this application.

[0032] Explanation of reference numerals in the attached figures

[0033] 10. Retractable cable assembly; 1. Housing body; 11. Receiving cavity; 12. First cable outlet; 13. Second cable outlet; 14. Rotating shaft; 2. Winding assembly; 21. Data cable; 22. Rotating component; 221. Mounting area; 222. Winding area; 23. Positioning assembly; 231. Swinging component; 2311. First protrusion; 2312. Second protrusion; 2313. Third protrusion; 2314. Arc surface; 232. Limiting component; 2321. First groove; 2322. Second groove; 2323. Guide surface; 233. Gear; 234. Elastic part; 235. Spring; 3. Circuit board assembly; 31. Circuit board; 311. Contact groove; 32. Electrical connector; 321. Contact. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having” and any variations thereof are intended to cover non-exclusive inclusion.

[0036] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0037] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0039] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", "height direction", "first direction", "second direction", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0040] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0041] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0042] This application provides a retractable cable assembly 10; please refer to [link / reference]. Figure 1 The retractable cable assembly 10 includes a housing body 1, two winding assemblies 2, and a circuit board assembly 3. The housing body 1 includes a receiving cavity 11, a first cable outlet 12, and a second cable outlet 13, which communicate with the receiving cavity 11. The two winding assemblies 2 are disposed in the receiving cavity 11 and are coaxially arranged. Each winding assembly 2 includes a data cable 21 and a rotating member 22. The data cable 21 has a free end, and the free ends of the two winding assemblies 2 pass through the first cable outlet 12 and the second cable outlet 13, respectively. At least a portion of the data cable 21 is wound around the circumferential outer side of the rotating member 22, and the data cable 21 can be unwound from the rotating member 22 to allow the free end to move away from the receiving cavity 11. The circuit board assembly 3 is disposed in the receiving cavity 11, sandwiched between the two winding assemblies 2. At least one rotating member 22 is rotatably connected to the circuit board assembly 3, and the two data cables 21 are electrically connected through the circuit board assembly 3.

[0043] The adjustable cable assembly 10 is a device that enables the cable length to be adjusted. Through its internal structural design, the cable can be extended or retracted as needed to meet the length requirements of different scenarios, making it convenient for storage and use.

[0044] The shell body 1 serves as the external protective structure for the freely retractable cable assembly 10, providing space for the installation and accommodation of internal components such as the winding assembly 2 and the circuit board assembly 3, protecting the internal components from external physical damage and environmental factors, and ensuring the stability and reliability of the entire assembly.

[0045] The material of the housing body 1 is not limited here. The housing body 1 can be made of plastic or metal. Plastic has the advantages of low cost, good insulation and easy molding, making it suitable for mass production. Metal has better strength and shielding performance, which can effectively reduce the impact of external electromagnetic interference on the signal transmitted by the data cable 21.

[0046] The cavity 11 is a hollow part inside the shell body 1, used to place key components such as the winding assembly 2 and the circuit board assembly 3, providing them with a stable installation position and working environment, so that each component can work together in a relatively fixed space and avoid mutual interference and collision between components.

[0047] The specific structure of the receiving cavity 11 is not limited here. The internal shape of the receiving cavity 11 can be optimized according to the shape of the winding assembly 2 and the circuit board assembly 3, for example, by adopting a circular or rectangular cavity structure, and setting some fixing slots or positioning posts to more securely install the internal components and prevent damage to the components or poor contact due to shaking during use.

[0048] The first outlet 12 and the second outlet 13 are openings on the housing body 1 that communicate with the receiving cavity 11. They are channels through which the data line 21 in the winding assembly 2 extends out of the housing body 1. The free end of the data line 21 passes through these openings to connect with external devices and realize functions such as data transmission and power transmission. The design of their position and size must take into account the smoothness of the data line 21's exit and the convenience of connecting with external devices.

[0049] The winding assembly 2 mainly consists of a data cable 21 and a rotating component 22. It is responsible for realizing the winding and unwinding functions of the data cable 21, thereby achieving the effect of cable extension and retraction to meet different length requirements, while ensuring the orderly arrangement and stable transmission performance of the data cable 21 during the extension and retraction process.

[0050] Data cable 21 is a cable used to transmit data signals and power. In the retractable cable assembly 10, one end is connected to the corresponding device interface (such as a computer, mobile phone, etc.), and the other end is fixed to the winding assembly 2. The retraction is achieved by rotating the winding assembly 2. The free end refers to the end of data cable 21 that is not fixed to the winding assembly 2. It can pass through the housing body 1 through the first cable outlet 12 or the second cable outlet 13 for connection with external devices.

[0051] The rotating component 22 is a key component in the winding assembly 2. The data cable 21 is wound around its circumferential outer side. The winding and unwinding actions of the data cable 21 are realized by rotation. The flexibility and stability of its rotation are crucial to the extension and retraction effect of the data cable 21. It usually adopts a smooth surface and a suitable shaft diameter design to reduce the friction and wear of the data cable 21 during the winding process, while ensuring the smoothness and accuracy of rotation.

[0052] The circuit board assembly 3 plays a connecting and control role in the freely retractable cable assembly 10, and is sandwiched between the two winding assemblies 2. The circuit board assembly 3 is provided with corresponding circuit connection points and wiring to electrically connect the data lines 21 of the two winding assemblies 2, so as to realize the transmission and integration of data signals.

[0053] Two rotating parts 22 are connected to the circuit board assembly 3, and the two rotating parts 22 can rotate relative to each other. The data lines 21 of the two winding assemblies 2 are electrically connected through the circuit board assembly 3. In this way, the two rotating parts 22 can still maintain an electrical connection when winding and unwinding.

[0054] The rotating component 22 can adopt a bushing structure, with the middle shaft rotatably connected to the circuit board assembly 3, and the outer sleeve used to wind the data cable 21. The shaft and the sleeve are connected by a bearing or a low-friction material to ensure smooth and flexible rotation.

[0055] The two winding assemblies 2 are coaxially arranged. This arrangement helps to rationally lay out the data cables 21 in a limited space, avoiding tangling and mess between the data cables 21, and improving the overall compactness and reliability of the retractable cable assembly 10. The data cable 21 of each winding assembly 2 is partially wound around the circumferential outer side of the rotating member 22. The design of the rotating member 22 is the key to realizing the retractable function of the data cable 21.

[0056] The retractable cable assembly 10 provided in this application features a compact design with two winding assemblies 2 coaxially arranged and a circuit board assembly 3 sandwiched in the middle, which improves the space utilization of the retractable cable assembly 10. The rotating member 22's winding and unwinding function for the data cable 21 facilitates the carrying and storage of the data cable 21, and allows for free adjustment of the cable length, avoiding the inconvenience caused by the fixed length of traditional cables and improving ease of use. In addition, by sandwiching the circuit board assembly 3 between the two winding assemblies 2, and connecting the two rotating members 22 to the circuit board assembly 3, and allowing the two rotating members 22 to rotate relative to each other, the two data cables 21 are electrically connected through the circuit board assembly 3 and are not affected by rotation. In this way, the data cables 21 at both ends can be pulled out independently without affecting each other, and each end of the data cable 21 can be connected to the device at a suitable length, improving the range and flexibility of adjusting the length of the data cable 21 in the retractable cable assembly 10.

[0057] In some embodiments, please refer to Figures 1 to 3 In some embodiments, please refer to Figures 1 to 3 The circuit board assembly 3 includes a circuit board 31 and an electrical connector 32. The circuit board 31 has an annular contact groove 311, and the electrical connector 32 has a contact 321 extending into the contact groove 311 and electrically connected to it. The circuit board 31 and / or the electrical connector 32 are mounted on a rotating member 22 and electrically connected to a data cable 21. The rotating member 22 rotates to move the contact 321 along the contact groove 311.

[0058] The contact groove 311 is an annular groove structure located on the circuit board assembly 3, specifically designed to cooperate with the contact 321 of the winding assembly 2 to form a stable and reliable electrical connection. Its annular shape accommodates the rotational movement of the rotating component 22, ensuring that the contact 321 maintains good electrical contact with the contact groove 311 during rotation, thereby achieving continuous signal transmission and power supply. It can be likened to a train track; the contact 321 is like the train wheel, sliding along the contact groove 311, ensuring stable transmission of electrical energy and signals.

[0059] The depth and width of the contact groove 311 need to be precisely controlled to ensure that the contact 321 can be stably embedded in it, while not being too tight and affecting the rotational flexibility of the rotating part 22, nor too loose and causing poor contact.

[0060] For example, the inner wall of the contact groove 311 can be treated with gold plating or other methods to improve its conductivity and corrosion resistance, thereby ensuring a long-term stable electrical connection. Furthermore, the annular trajectory of the contact groove 311 can be optimized according to the rotation range of the rotating component 22 and the outgoing direction of the data line 21, making the movement trajectory of the contact component 321 during rotation more reasonable, reducing unnecessary friction and wear, and better protecting the contact component 321 and the contact groove 311, thus extending their service life.

[0061] The electrical connector 32 serves as an electrical bridge between the winding assembly 2 and the circuit board assembly 3. On one hand, it connects to the data line 21, transmitting the signals and power transmitted by the data line 21. On the other hand, its contact 321 cooperates with the contact groove 311 on the circuit board assembly 3 to achieve a stable electrical connection between the winding assembly 2 and the circuit board assembly 3 during rotation, ensuring that the transmission of data and power is not affected by rotation.

[0062] Contact 321 is the portion of electrical connector 32 extending into circuit board assembly 3. Its shape and size match contact groove 311, allowing it to fit snugly into the contact groove 311 and slide along the contact groove 311 when rotating member 22 rotates, maintaining electrical connection with contact groove 311 at all times. The material of contact 321 typically has good conductivity and wear resistance to ensure long-term stable electrical performance; for example, it is made of materials such as copper alloy, responsible for current conduction.

[0063] The circuit board 31 and / or the electrical connector 32 are disposed on the rotating member 22. When the rotating member 22 rotates, the circuit board 31 and the electrical connector 32 can rotate relative to each other, and the contact 321 on the electrical connector 32 can always maintain contact with the contact groove 311 on the circuit board assembly 3.

[0064] The structural design of the electrical connector 32 needs to take into account the position of the rotating shaft of the rotating component 22, the connection method of the data line 21, and the integrated design with the contact component 321.

[0065] For example, the electrical connector 32 can be manufactured by injection molding, integrating the contact 321 with the data cable 21, which ensures structural stability and improves production efficiency. The electrical connector 32 and the rotating part 22 can be fixed by various methods such as slots, screws, or glue, ensuring that the electrical connector 32 will not loosen or shift during long-term use, thereby ensuring the reliability of the electrical connection.

[0066] Through the coordinated design of the contact groove 311 and the contact element 321, a stable electrical connection is maintained throughout the rotation of the rotating element 22, avoiding poor contact or signal interruption caused by rotation. This ensures the continuity and accuracy of data transmission, improving the efficiency and reliability of the equipment. The rotational function of the winding assembly 2, combined with the stable electrical connection design, allows users to freely adjust the extension length of the data cable 21 according to actual usage needs, meeting the connection distance requirements between different devices without affecting data and power transmission.

[0067] In some embodiments, please refer to Figures 1 to 3 The circuit board assembly 3 includes a circuit board 31 and two electrical connectors 32. The circuit board 31 is sandwiched between the two electrical connectors 32. The two electrical connectors 32 are respectively disposed on two rotating parts 22. The circuit board 31 has contact grooves 311 on the surfaces opposite to the two electrical connectors 32.

[0068] In other words, the two rotating parts 22 rotate relative to the circuit board 31 sandwiched in the middle through the electrical connectors 32 connected to them, and maintain electrical connection during the rotation, thereby achieving a stable electrical connection of the data lines 21 of the two winding assemblies 2 when the rotating parts 22 rotate.

[0069] The structure of clamping the circuit board 31 between the two electrical connectors 32 simplifies the installation process. The electrical connectors 32 are respectively disposed on the rotating member 22 and connected to the circuit board 31 through the contact groove 311, which helps to maintain the stability of the electrical connection of the data lines 21 of the two winding assemblies 2 when the rotating member 22 rotates.

[0070] In some embodiments, the circuit board assembly 3 includes two circuit boards 31 and an electrical connector 32. The electrical connector 32 is sandwiched between the two circuit boards 31. The two circuit boards 31 are respectively disposed on two rotating members 22. The electrical connector 32 is provided with a contact member 321 on the surface opposite to the two circuit boards 31.

[0071] In other words, the two rotating parts 22 rotate relative to the electrical connector 32 sandwiched in the middle through the circuit board 31 connected to each other, and maintain electrical connection during the rotation, thereby achieving a stable electrical connection of the data lines 21 of the two winding assemblies 2 when the rotating parts 22 rotate.

[0072] The structure of clamping the electrical connector 32 between the two circuit boards 31 makes the installation process simpler. The circuit boards 31 are respectively disposed on the rotating member 22 and connected to the electrical connector 32 through the contact member 321, which helps to maintain the stability of the electrical connection of the data lines 21 of the two winding assemblies 2 when the rotating member 22 rotates.

[0073] In some embodiments, the circuit board assembly 3 includes a circuit board 31 and an electrical connector 32, which are respectively disposed on two rotating members 22 and are in a relative state.

[0074] In other words, each of the two rotating components 22 is connected to a circuit board 31 and an electrical connector 32. During rotation, the circuit board 31 and the electrical connector 32 rotate relative to each other while maintaining electrical connection. In this way, when the rotating component 22 rotates, a stable electrical connection can be achieved between the data lines 21 of the two winding assemblies 2.

[0075] The separate circuit board 31 and electrical connector 32 are simple in structure and help to reduce production costs.

[0076] In some embodiments, please refer to Figures 1 to 4 The winding assembly 2 includes a locking assembly 23, which includes a swing member 231, a limiting member 232, and a gear 233. The swing member 231 and the limiting member 232 are rotatably mounted on the housing body 1. The gear 233 is mounted on the rotating member 22 and rotates with the rotating member 22. The limiting member 232 is provided with a first groove 2321. The swing member 231 is provided with a first protrusion 2311 that matches the gear 233 and a second protrusion 2312 that matches the first groove 2321. When the data cable 21 is unwound from the rotating member 22 under the action of external force, it drives the gear 233 to rotate in a first direction. The gear 233 pushes the first protrusion 2311 to make the swing member 231 rotate, and the limiting member 232 avoids the swing member 231. When the external force is removed, the data cable 21 is wound from the rotating member 22, driving the gear 233 to rotate in the second direction. The gear 233 pushes the first protrusion 2311 to make the oscillating member 231 rotate. The second protrusion 2312 is engaged in the first groove 2321 to prevent the oscillating member 231 from rotating. The first direction and the second direction are opposite directions.

[0077] The locking component 23 plays a key role in limiting and controlling the winding system of the retractable cable assembly 10. Through the coordinated action of its internal components, it can accurately control the rotation state of the winding assembly 2, thereby achieving effective management of the extension and retraction of the data cable 21, preventing the data cable 21 from extending and retracting arbitrarily when not needed, and ensuring the stability and safety of use.

[0078] The swing member 231, as an important component of the locking assembly 23, is rotatably mounted on the housing body 1. It achieves the locking function through interaction with the gear 233 and the limiting member 232. The first protrusion 2311 on the swing member 231 matches the gear 233 and can receive the thrust when the gear 233 rotates, thereby driving itself to rotate. The second protrusion 2312 is used to cooperate with the first groove 2321 of the limiting member 232 to achieve the functions of locking and limiting. Its shape and size design must ensure precise matching with other components to ensure the reliability and stability of the entire locking assembly 23.

[0079] The first protrusion 2311 can be designed with a certain curvature to better receive the thrust of the gear 233 when in contact with it, and to achieve smooth rotation. At the same time, the second protrusion 2312 can be designed as a trapezoid or wedge shape that fits tightly with the first groove 2321, so as to provide greater friction and stability when engaged, and prevent the swinging part 231 from accidentally disengaging from its limit.

[0080] The connection between the swing member 231 and the shell body 1 can be achieved by a pin connection. By setting a suitable shaft hole on the swing member 231 and installing a pin on the shell body 1, the swing member 231 can rotate flexibly around the pin, while ensuring its stability and positioning accuracy during rotation.

[0081] The limiting member 232 is also rotatably disposed on the shell body 1. Through the first groove 2321 and the second protrusion 2312 of the swing member 231, it plays the role of limiting the rotation of the swing member 231, thereby preventing the rotation of the winding assembly 2 under certain circumstances, realizing the limiting control of the winding of the data cable 21, ensuring that the data cable 21 will not be over-wound or unwound unintentionally, and ensuring the normal use of the freely pullable cable assembly 10 and the safety of the internal structure.

[0082] The depth and width of the first groove 2321 need to be precisely designed to ensure that the second protrusion 2312 of the swing member 231 can be smoothly inserted and reliably engaged, while also ensuring that the swing member 231 can easily disengage from the first groove 2321 when disengaging, so as not to affect the normal operation of the winding assembly 2 due to jamming.

[0083] The connection between the limiting member 232 and the shell body 1 can also be a pin connection similar to that of the swing member 231, ensuring that it can rotate flexibly within a certain range to adapt to the movement and positioning requirements of the swing member 231. In addition, the rotation angle of the limiting member 232 can be limited by setting a limiting structure on the shell body 1 to prevent it from rotating excessively and losing its limiting function.

[0084] Gear 233 is mounted on and rotates with rotating component 22, and is a key component driving the entire locking assembly 23. It interacts with the first protrusion 2311 of oscillating component 231, using the rotational motion of gear 233 to convert the oscillation of oscillating component 231, thereby controlling the rotation of winding assembly 2. The design of parameters such as the number of teeth, module, and tooth profile of gear 233 will affect the transmission efficiency and accuracy between it and oscillating component 231, thus affecting the performance of the entire locking assembly 23.

[0085] The installation position and fixing method of gear 233 need to ensure that it rotates synchronously with rotating component 22 and can stably contact the first protrusion 2311 of oscillating component 231 during rotation. Gear 233 can be fixed to the shaft of rotating component 22 by key connection or set screw to ensure that it will not be displaced or loosened during rotation.

[0086] To improve the transmission efficiency and wear resistance between gear 233 and the first protrusion 2311, appropriate lubrication treatment can be applied to the tooth surface of gear 233 and the contact area of ​​the first protrusion 2311, such as applying lubricating oil or using self-lubricating materials to make related parts. During the rotation of the winding assembly 2, the rotation direction of gear 233 will change according to the winding and unwinding of the data cable 21. Therefore, it is necessary to ensure that the transmission system of gear 233 has good reversibility and can stably drive the oscillating member 231 to move in both forward and reverse directions.

[0087] It should be noted that the first direction and the second direction here are two opposite directions of rotation, and the specific direction is not limited here. In this application, for ease of explanation, the first direction is the counterclockwise direction, and the corresponding second direction is the clockwise direction.

[0088] Please see Figure 5During the operation of the winding structure of the retractable cable assembly 10, when the data cable 21 needs to be used and gradually unwound and extended from the rotating member 22 of the winding assembly 2 (i.e., the unwinding process), the gear 233 mounted on the rotating member 22 will begin to rotate in the first direction. When this gear 233 rotates, it will interact with the first protrusion 2311 that matches it on the oscillating member 231. The driving force generated by the rotation of the gear 233 is applied to the first protrusion 2311, which causes the oscillating member 231 to start rotating around its connection point with the housing body 1. Meanwhile, the limiting member 232 is also rotatably mounted on the housing body 1. During the rotation of the swing member 231, the limiting member 232 will correspondingly change its original position to avoid the rotation path of the swing member 231, thus not hindering the rotation of the swing member 231 and ensuring that the swing member 231 can rotate smoothly. This allows the data cable 21 to be smoothly unwound and extended from the rotating member 22 to meet the length requirements of the data cable 21 during use. The various components work together to create conditions for the smooth unwinding of the data cable 21 from the rotating member 22.

[0089] It should be noted that, since the first protrusion 2311 rotates away from the gear 233 after being pushed by the gear 233, when the gear 233 pushes the first protrusion 2311 to its farthest point, even if the gear 233 continues to rotate, the first protrusion 2311 will slide relative to the gear 233, and the oscillating member 231 will no longer rotate in the first direction. When the first protrusion 2311 and the gear 233 slide relative to each other into the groove of the gear 233, the first protrusion 2311 returns to its initial position along the second direction until the next tooth of the gear 233 pushes the first protrusion 2311 again. That is to say, the oscillating member 231 oscillates between its initial position and the highest position reached along the first direction.

[0090] Please see Figure 6During the operation of the retractable cable assembly 10, when the extended data cable 21 is to be rewound onto the rotating member 22 (i.e., the winding operation), the gear 233 mounted on the rotating member 22 will begin to rotate in the second direction. As the gear 233 rotates in the second direction, it contacts the first protrusion 2311 on the swing member 231 and applies a pushing force to it. Under this pushing force, the swing member 231 will rotate around the connection point between itself and the housing body 1. After the swing member 231 rotates to a certain extent, the second protrusion 2312 on it will move to the position of the first groove 2321 provided by the limiting member 232 and extend into the first groove 2321 to form a locking state. Once the second protrusion 2312 successfully engages with the first groove 2321, the swing member 231 can no longer rotate freely due to the limiting effect of this engagement structure. This also restricts the rotation of related components (such as the rotating member 22 connected to the swing member 231 via gear 233), preventing the rotating member 22 from easily rotating in the opposite direction and meeting the user's requirement to maintain the length of the data cable 21 after pulling it out.

[0091] The design of the locking component 23 allows for precise control of the extension length of the data cable 21. Whether unwinding or rewinding the data cable 21, it ensures it remains in the desired position, avoiding inconvenience caused by excessively long or short cables. This improves the ease of use and accuracy of the retractable cable assembly 10. When using the retractable cable assembly 10, the user simply needs to perform the normal extension and retraction operations of the data cable 21. The locking component 23 will automatically adjust its position according to the rotation direction of the gear 233, limiting and releasing the cable without requiring additional complex steps or tools.

[0092] In some embodiments, please refer to Figures 1 to 3 , Figure 7 The limiting member 232 is provided with a second groove 2322 and a guide surface 2323, and the swing member 231 is provided with a third protrusion 2313. The second groove 2322 matches the second protrusion 2312, and the guide surface 2323 is disposed between the first groove 2321 and the second groove 2322. Under the action of external force, the data cable 21 continues to unwind from the rotating member 22, and the gear 233 rotates in the first direction. The gear 233 pushes the first protrusion 2311 to make the swing member 231 rotate. During the rotation of the swing member 231, the second protrusion 2312 and / or the third protrusion 2313 abut against the guide surface 2323 to drive the limiting member 232 to rotate.

[0093] The second groove 2322 is located on the limiting member 232 and matches the second protrusion 2312 of the swing member 231. It is an important part of the structure of the limiting member 232. By different matching states with the second protrusion 2312, the winding assembly 2 can be in different working states. For example, in some cases, when the second protrusion 2312 matches the second groove 2322, it may affect the operation of the data cable 21 when winding, so that the action of the limiting member 232 is different.

[0094] The shape and size of the second groove 2322 are not limited here. In actual manufacturing, the second groove 2322 can be designed as a groove with a certain angle and depth, such as an arc groove, according to specific functional requirements, so that the second protrusion 2312 can move more smoothly in it, while ensuring the reliability of the matching. The position of the second groove 2322 should take into account its relative position with the first groove 2321 and its transition with the guide surface 2323, to ensure that the second protrusion 2312 can accurately switch from the first groove 2321 to the second groove 2322 under the guidance of the guide surface 2323, and to more reasonably control the movement of the oscillating member 231 and the winding assembly 2 in different states.

[0095] The second groove 2322 and the first groove 2321 of the limiting member 232 are respectively used to match the second protrusion 2312 of the swing member 231 in different states. By switching the matching, the working state of the winding assembly 2 can be adjusted, thereby controlling the extension and retraction of the data line 21.

[0096] The third protrusion 2313 is provided on the swing member 231. It cooperates with the guide surface 2323 of the limiting member 232. When the swing member 231 rotates under the push of the gear 233, the third protrusion 2313 will abut against the guide surface 2323, thereby driving the limiting member 232 to rotate. This makes the cooperation between the limiting member 232 and the swing member 231 more complex and flexible, and enables more diversified functional control.

[0097] The shape and size of the third protrusion 2313 need to be compatible with the guide surface 2323. It can be designed as a hemispherical or wedge shape to increase the contact area with the guide surface 2323, making the process of contacting and pushing the limiting member 232 to rotate more stable and reliable. During the manufacturing process of the swing member 231, the relative positional accuracy of the third protrusion 2313 with the second protrusion 2312 and the first protrusion 2311 must be ensured, as they collectively determine the movement of the swing member 231 in different states and its effective cooperation with the limiting member 232.

[0098] The swing member 231 receives power from the gear 233 through the first protrusion 2311 and rotates. At the same time, the second protrusion 2312 and the third protrusion 2313 provided therein interact with the structure of the limiting member 232 to realize the control of the rotation of the winding assembly 2 and the state switching.

[0099] The guide surface 2323 is disposed on the limiting member 232, located between the first groove 2321 and the second groove 2322, and serves to guide the movement of the protrusions on the swing member 231. When the swing member 231 rotates, its protrusions (such as the second protrusion 2312 and / or the third protrusion 2313) will abut against the guide surface 2323. By utilizing the shape and position of the guide surface 2323, the rotation of the limiting member 232 is guided, realizing the switching and matching of the second protrusion 2312 between the first groove 2321 and the second groove 2322, ensuring the continuity and coordination of the actions between the components.

[0100] The shape and tilt angle of the guide surface 2323 are not limited here. The guide surface 2323 directly affects the movement trajectory of the protrusion of the swing member 231 and the rotation effect of the limiting member 232.

[0101] For example, the guide surface 2323 can be a smooth inclined surface with a certain curvature, which can convert the linear motion of the protrusion into the rotational motion of the limiting member 232 when the second protrusion 2312 and / or the third protrusion 2313 of the swing member 231 abuts against it.

[0102] The guide surface 2323 can be polished to reduce friction and ensure smooth movement of the protrusion. At the same time, the position and length of the guide surface 2323 need to be optimized according to the positions of the first groove 2321 and the second groove 2322 to ensure accurate guidance of the protrusion to switch between the two grooves and avoid jamming or inability to switch.

[0103] Please see Figure 7 When the second protrusion 2312 of the swing member 231 matches the second groove 2322 of the limiting member 232, the gear 233 mounted on the rotating member 22 will rotate along the second direction. During the rotation of the gear 233 along the second direction, it will generate a pushing force on the first protrusion 2311 on the swing member 231. Due to the presence of this pushing force, the swing member 231 will start to rotate.

[0104] In some embodiments, please refer to Figure 7 The limiting member 232 rotates to bring the first groove 2321 closer to the second protrusion 2312; when the external force disappears, the data cable 21 continues to be wound from the rotating member 22, driving the gear 233 to rotate in the second direction. The gear 233 pushes the first protrusion 2311 to make the swing member 231 rotate. During the rotation of the swing member 231, the second groove 2322 avoids the second protrusion 2312.

[0105] As the swing member 231 rotates, its second protrusion 2312 moves within the second groove 2322 of the limiting member 232. In this situation, the limiting member 232 will take corresponding actions, avoiding the swing member 231. That is, the limiting member 232 will change its own position or state to ensure that the rotation of the swing member 231 is not obstructed, so that the data cable 21 can smoothly roll back from the extended state to the rotating member 22.

[0106] Similarly, without the interference of the limiting member 232, the first protrusion 2311, after being pushed by the gear 233, will rotate away from the gear 233. When the gear 233 pushes the first protrusion 2311 to its farthest point, even if the gear 233 continues to rotate, the first protrusion 2311 will slide relative to the gear 233, and the oscillating member 231 will no longer rotate in the second direction. When the first protrusion 2311 and the gear 233 slide relative to each other into the groove of the gear 233, the first protrusion 2311 returns to its initial position in the second direction until the next tooth of the gear 233 pushes the first protrusion 2311 again. That is to say, the oscillating member 231 oscillates between its initial position and the highest position reached by rotating in the second direction.

[0107] Through the cooperation between gear 233, swing member 231, limit member 232 and rotating member 22, the orderly winding function of data cable 21 is realized in a specific state (the second protrusion 2312 matches the second groove 2322). At the same time, the smoothness and stability of the entire winding process are ensured, and the winding operation failure or jamming caused by interference between components is avoided. This ensures that the retractable cable assembly 10 can smoothly complete the storage of data cable 21 according to the user's needs during use.

[0108] In some embodiments, please refer to Figures 1 to 7 The first groove 2321 and the second groove 2322 are arranged at intervals along the circumference of the limiting member 232, and the number of the first groove 2321, the second groove 2322 and the guide surface 2323 are the same.

[0109] Since the first slot 2321 and the second slot 2322 are spaced apart circumferentially along the limiting member 232, their spacing needs to be precisely calculated and determined in actual design. This spacing can be designed based on the rotation range of the swing member 231 and the movement trajectory of the second protrusion 2312 on the swing member 231 to ensure that the second protrusion 2312 can accurately switch from one slot to another under different working conditions. For example, in some cases, when it is necessary to switch the data cable 21 from the unwinding state to the winding state, the second protrusion 2312 needs to disengage from the first slot 2321 and enter the second slot 2322, and the spacing should ensure the smoothness of this process. In this way, the limiting member 232 can rotate in one direction to complete the matching of the first slot 2321, the second slot 2322, and the second protrusion 2312.

[0110] The spacing and the same number of guide surfaces 2323 ensure smoother switching and movement of the second protrusion 2312 of the swing component 231 between different slots. Due to the guiding effect of the guide surfaces 2323, component movement jamming or stuckness caused by unreasonable structural design is avoided, making the entire locking assembly 23 move more smoothly and reliably. This improves the overall performance and stability of the freely adjustable telescopic cable assembly 10, reduces the risk of failure due to interference or wear between components, and extends the service life of the assembly.

[0111] In some embodiments, please refer to Figures 1 to 7 The second protrusion 2312 and / or the third protrusion 2313 are provided with an arc surface 2314, and the second protrusion 2312 and / or the third protrusion 2313 abut against the guide surface 2323 on the arc surface 2314.

[0112] The arc surface 2314 is an arc-shaped surface provided on the second protrusion 2312 and / or the third protrusion 2313. When it abuts against the guide surface 2323 of the limiting member 232, its arc-shaped design enables smoother contact and relative movement with the guide surface 2323, avoiding jamming or scratching caused by sharp edges.

[0113] The radius and arc length of the arc surfaces 2314 on the second protrusion 2312 and the third protrusion 2313 need to be designed according to the shape of the guide surface 2323 and the rotation range of the oscillating member 231. The radius of the arc surface 2314 must ensure sufficient contact area with the guide surface 2323 to evenly distribute pressure, reduce local stress concentration, and prevent functional failure due to local wear. For example, during the rotation of the oscillating member 231, when the arc surface 2314 comes into contact with the guide surface 2323, its smooth surface characteristics make the relative movement between the two smoother, avoiding jamming or jerking caused by shape mismatch.

[0114] The arc surface 2314 makes the contact between the second protrusion 2312 and / or the third protrusion 2313 and the guide surface 2323 smoother, avoiding jamming and friction caused by right angles or sharp edges, ensuring smoother relative movement between the swinging member 231 and the limiting member 232, improving the smoothness of operation of the entire freely pullable telescopic cable assembly 10 during the winding and unwinding process of the data cable 21, and bringing a better user experience.

[0115] In some embodiments, please refer to Figures 1 to 7 The locking assembly 23 includes an elastic part 234, which is disposed on the housing body 1. The elastic part 234 abuts against the swing member 231 on the side away from the first protrusion 2311. When the gear 233 rotates in a first direction or a second direction, it pushes the first protrusion 2311, causing the swing member 231 to rotate, and the elastic part 234 undergoes elastic deformation.

[0116] The elastic part 234 is a component provided on the shell body 1, which has the ability to elastically deform. It plays a role in buffering and auxiliary control in the locking assembly 23. By abutting against the swing member 231, it undergoes elastic deformation when the swing member 231 rotates, providing a certain elastic restoring force or buffering force for the movement of the entire structure, so as to optimize the coordination and smoothness of movement between the components.

[0117] The specific structure and material of the elastic part 234 are not limited here. The elastic part 234 can be an elastic element such as a spring, a sheet, or elastic rubber.

[0118] For example, the elastic part 234 is a spring, and its elastic coefficient needs to be selected according to the rotational force of the oscillating member 231 and the required elastic restoring force to ensure that the spring can generate appropriate deformation when the oscillating member 231 rotates, while providing sufficient restoring force so that the oscillating member 231 returns to its original position or achieves a specific action under certain conditions. If it is a spring sheet, its shape and thickness need to be carefully designed to ensure its elastic performance and strength, and the bending shape design can make its contact with the oscillating member 231 more stable and effective. The elastic rubber can be customized according to the specific installation position and space, and its hardness and elastic modulus need to be determined according to actual needs. For example, in different usage environments, elastic rubber with different hardness can be selected to adapt to different working requirements.

[0119] The side of the swing member 231 away from the first protrusion 2311 can be provided with a suitable flat or curved surface to abut against the elastic part 234, ensuring that the contact area with the elastic part 234 is large enough to evenly distribute the pressure and avoid local stress concentration. At the same time, the design of the rotation shaft of the swing member 231 is also crucial. It can be connected to the shell body 1 by a pin. Through precise shaft hole fit and appropriate clearance, the flexibility and stability of the swing member 231 rotation are guaranteed, and shaking or jamming during rotation is avoided.

[0120] The presence of the elastic part 234 provides a buffer for the rotation of the swing member 231. When the gear 233 pushes the swing member 231 to rotate, the elastic part 234 undergoes elastic deformation, which can absorb part of the impact and vibration, avoiding noise and damage caused by rigid collisions between components. This makes the entire freely retractable cable assembly 10 quieter and smoother during operation, improving the user experience and product durability. In addition, the elastic part 234 allows the swing member 231 to automatically return to its initial position with minimal interference from the limit member 232 and / or the gear 233, eliminating the need for manual return and improving the automation level of the locking assembly 23.

[0121] In some embodiments, please refer to Figures 1 to 7 The shell body 1 includes a rotating shaft 14, which passes through the winding assembly 2 and the circuit board assembly 3 along the height direction of the shell body 1, and the rotating component 22 rotates around the rotating shaft 14.

[0122] The rotating shaft 14 is a component arranged along the height direction of the shell body 1. It plays an important role in supporting and rotating within the shell body 1. It passes through the winding assembly 2 and the circuit board assembly 3, providing a central axis for the rotation of the rotating component 22, so that the rotating component 22 can rotate around it.

[0123] The internal structure of the housing 1 needs to provide suitable mounting positions and support for the shaft 14, the winding assembly 2, and the circuit board assembly 3.

[0124] For example, a corresponding slot, positioning hole or support structure can be provided in the shell body 1 to ensure that the rotating shaft 14 is firmly installed in the height direction of the shell body 1 and can withstand the force and pressure when the rotating part 22 rotates.

[0125] The shape of the shell body 1 can be adjusted according to specific usage needs and aesthetic design. For example, it can be a cuboid, cylinder or other shapes. Its exterior can also be provided with some anti-slip textures, logos or other functional structures to facilitate user operation and carrying.

[0126] The length of the pivot 14 needs to be precisely determined based on the height of the housing body 1 and the layout of the internal components to ensure that it can completely pass through the winding assembly 2 and the circuit board assembly 3.

[0127] The material of the pivot 14 can be metal, such as stainless steel or aluminum alloy, to provide sufficient strength and wear resistance.

[0128] The shaft 14 can be fixed to the housing body 1 by means of interference fit, bushing fit, or nuts and washers to prevent axial or radial displacement of the shaft 14 during use. The surface of the shaft 14 can be polished to reduce the friction of the rotating part 22 when it rotates around it and improve the smoothness of rotation.

[0129] The layout of circuit board assembly 3 needs to take into account the position of the pivot 14 to avoid interference with the pivot 14.

[0130] By extending the shaft 14 through the winding assembly 2 and the circuit board assembly 3 along the height of the housing body 1, the entire freely retractable cable assembly 10 has a more compact structure, effectively utilizing space, reducing the space occupied between components, facilitating miniaturization, making it convenient for users to carry and store, and improving product portability. The shaft 14 provides a stable rotation center for the rotating component 22, ensuring high concentricity and stability when rotating around it, avoiding wobbling and eccentricity during rotation. This makes the winding and unwinding of the data cable 21 smoother, reducing the risk of data transmission interruption or damage to the data cable 21 due to unstable rotation, and improving product reliability. This through-type structural design facilitates the product assembly process, allowing components to be installed sequentially along the shaft 14, making assembly more orderly and efficient. During maintenance, it also facilitates the inspection, repair, or replacement of internal components, improving product maintainability and production efficiency.

[0131] In some embodiments, please refer to Figures 1 to 7 The rotating member 22 includes an axially extending mounting area 221 and a circumferentially extending winding area 222. The rotating shaft 14 passes through the mounting area 221, and the rotating member 22 rotates about the rotating shaft 14 to wind the data cable 21 in the winding area 222.

[0132] Mounting area 221 is a portion of the rotating member 22 that extends axially. Its main function is to provide a mounting position for the rotating shaft 14, allowing the rotating shaft 14 to pass through this area, thereby stably mounting the rotating member 22 on the housing body 1 and ensuring that the rotating member 22 can rotate smoothly around the rotating shaft 14.

[0133] The winding area 222 is the area extending circumferentially on the rotating part 22. This is the area where the data cable 21 is actually wound and unwound. Its shape and size will affect the winding effect of the data cable 21 and the length of the data cable 21 that can be accommodated.

[0134] The shape of the mounting area 221 can be designed according to the shape of the rotating shaft 14 and the installation requirements. For example, if the rotating shaft 14 is circular, the mounting area 221 can be a circular through hole or bushing, and clearance fit, transition fit, or interference fit can be used between them. To reduce friction during rotation, bearings or self-lubricating materials, such as copper bushings or oil-impregnated bearings, can be installed in the mounting area 221 to improve the rotation efficiency and service life of the rotating component 22. At the same time, the length of the mounting area 221 must ensure that the rotating shaft 14 has sufficient installation length within it to avoid axial movement during rotation.

[0135] The design of the winding area 222 needs to consider the characteristics and usage requirements of the data cable 21. Its diameter can be determined based on the length and thickness of the data cable 21 to ensure that the data cables 21 do not squeeze each other or become excessively loose during winding. Separating structures, such as annular protrusions or grooves, can be provided in the winding area 222 to orderly separate the data cables 21, preventing them from tangling or knotting during winding. Furthermore, the surface of the winding area 222 can be treated, such as with a soft coating or padding, to protect the outer sheath of the data cable 21 and prevent wear and tear during winding.

[0136] In addition to considering its fit with the mounting area 221, the design of the rotating shaft 14 also needs to take into account its strength and stability. Positioning structures, such as shoulders or nuts, can be provided at both ends of the rotating shaft 14 to limit the axial displacement of the rotating component 22. The material of the rotating shaft 14 can be a high-strength and wear-resistant material, such as alloy steel or hard alloy, to ensure that the rotation performance will not be affected by wear during long-term use.

[0137] By dividing the rotating component 22 into an installation area 221 and a winding area 222, the function and structure of the rotating component 22 are made clearer, facilitating design and manufacturing. The installation area 221 is specifically responsible for the installation in conjunction with the rotating shaft 14, ensuring the rotational performance of the rotating component 22; the winding area 222 focuses on the winding operation of the data cable 21. This division of labor helps improve the rationality of the design and production efficiency. The setting of the winding area 222 provides a dedicated winding space for the data cable 21. Through reasonable design, the winding method of the data cable 21 can be optimized, making the data cable 21 more neat and orderly during the winding process, avoiding the chaotic tangling of the data cable 21, improving the usability and appearance of the freely retractable cable assembly 10, and also reducing the risk of failure caused by the tangling of the data cable 21.

[0138] In some embodiments, please refer to Figures 1 to 7The winding assembly 2 includes a spring 235, which is sleeved on the rotating shaft 14. Both ends of the spring 235 are fixed to the side wall of the mounting area 221 and the rotating shaft 14, respectively. When the data cable 21 is unwound from the rotating component 22, the spring 235 undergoes elastic deformation. The spring 235 returns to its elastic deformation, and the data cable 21 is wound up under the elastic force of the spring 235.

[0139] The spring 235 is a device capable of storing elastic potential energy, which is sleeved on the shaft 14 in this structure. When it undergoes elastic deformation, it stores energy, and when the deformation is restored, it releases the elastic potential energy and converts it into mechanical energy to power the winding of the data cable 21.

[0140] For the winding assembly 2, the internal spring 235 is the key component for realizing the automatic winding function. The spring 235 is usually made of a metal material with high elasticity and good toughness, such as stainless steel or high carbon steel, and is formed into a spiral structure through a special processing technology.

[0141] When the mainspring 235 is fitted onto the rotating shaft 14, its inner diameter must match the outer diameter of the rotating shaft 14 to ensure a tight fit between the two without affecting the extension and retraction of the mainspring 235.

[0142] When fixing the spring 235 to the side wall of the mounting area 221 and the rotating shaft 14, the connection to the side wall of the mounting area 221 can be made by means of a slot or screw to ensure that one end of the spring 235 is firmly connected to the side wall and to prevent it from coming off during use. The fixing to the rotating shaft 14 can be made by means of a shoulder, a pin, or an interference fit to ensure that the spring 235 will not slip or shift during deformation and recovery.

[0143] The shaft 14, structurally, must not only cooperate with the mainspring 235 but also with the rotating component 22. The surface of the shaft 14 can be polished to reduce friction with the mounting area 221 of the rotating component 22, improving the smoothness of rotation. Its two ends can be axially positioned using shoulders or nuts to prevent axial movement of the rotating component 22. Simultaneously, the material of the shaft 14 must possess sufficient strength and rigidity to withstand various forces during rotation.

[0144] In addition to providing a mounting position for the shaft 14, the mounting area can also be equipped with reinforcing structures such as ribs or stiffeners to enhance its strength and stability, preventing damage caused by the spring force of the spring 235 and the rotation of the rotating component 22. The shape of the mounting area 221 can be designed according to the shape of the shaft 14, generally a circular or square hole, the depth of which must ensure the secure installation of the shaft 14.

[0145] With the design of the spring 235, after the user unwinds the data cable 21 from the rotating part 22, the spring 235 automatically returns to its elastic deformation and uses its elasticity to wind the data cable 21 back up. This eliminates the need for manual operation by the user, making it convenient and quick, and improving the user experience. It is especially suitable for scenarios where the data cable 21 needs to be frequently stored, such as charging cables and data transmission cables for mobile devices. The design of the spring 235, which is fitted onto the rotating shaft 14 and combined with the mounting area 221, makes the entire winding assembly 2 more compact, saving space and facilitating the miniaturization of the entire retractable cable assembly 10. This makes it easier to carry and store, while also reducing interference from external factors on internal components and improving structural stability.

[0146] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0147] The above are merely preferred embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the protection scope of this application.

Claims

1. A retractable cable assembly, characterized in that, include: The shell body includes a receiving cavity, a first cable outlet and a second cable outlet, wherein the first cable outlet and the second cable outlet are in communication with the receiving cavity; Two winding assemblies are disposed in the receiving cavity and are coaxially arranged. Each winding assembly includes a data line and a rotating member. The data line includes a free end, and the free ends of the two winding assemblies are respectively passed through the first outlet and the second outlet. At least a portion of the data line is wound around the circumferential outer side of the rotating member, and the data line can be unwound from the rotating member so that the free end moves away from the receiving cavity. A circuit board assembly is disposed in the receiving cavity, the circuit board assembly is sandwiched between the two winding assemblies, the two rotating members are connected to the circuit board assembly and the two rotating members can rotate relative to each other, and the two data lines are electrically connected through the circuit board assembly.

2. The freely retractable cable assembly according to claim 1, characterized in that, The circuit board assembly includes a circuit board and an electrical connector; the circuit board is provided with an annular contact groove, and the electrical connector is provided with a contact extending toward the circuit board, the contact extending into the contact groove and electrically connected to the contact groove; the circuit board and / or the electrical connector are disposed on the rotating member and electrically connected to the data line; the rotating member rotates to drive the contact to move along the contact groove.

3. The freely retractable cable assembly according to claim 2, characterized in that, The circuit board assembly includes a circuit board and two electrical connectors. The circuit board is sandwiched between the two electrical connectors. The two electrical connectors are respectively disposed on the two rotating members. The circuit board has contact grooves on the surfaces opposite to the two electrical connectors.

4. The freely retractable cable assembly according to claim 2, characterized in that, The circuit board assembly includes two circuit boards and an electrical connector. The electrical connector is sandwiched between the two circuit boards. The two circuit boards are respectively disposed on the two rotating members. The electrical connector has a contact on each surface opposite to the two circuit boards.

5. The freely retractable cable assembly according to claim 2, characterized in that, The circuit board assembly includes a circuit board and an electrical connector, the circuit board and the electrical connector being respectively disposed on two rotating members and in a relative state.

6. The freely retractable cable assembly according to claim 1, characterized in that, The winding assembly includes a locking assembly, which includes a swing member, a limiting member, and a gear. The swing member and the limiting member are rotatably disposed on the housing body. The gear is disposed on the rotating member and rotates with the rotating member. The limiting member is provided with a first groove. The swing member is provided with a first protrusion that matches the gear and a second protrusion that matches the first groove. The data cable is unwound from the rotating member under the action of external force, which drives the gear to rotate in the first direction. The gear pushes the first protrusion to make the swing member rotate, and the limiting member avoids the swing member. When the external force disappears, the data cable is wound from the rotating member, causing the gear to rotate in the second direction. The gear pushes the first protrusion to make the swing member rotate, and the second protrusion is engaged in the first groove to prevent the swing member from rotating. The first direction and the second direction are opposite directions.

7. The freely retractable cable assembly according to claim 6, characterized in that, The limiting member is provided with a second groove and a guide surface, the swing member is provided with a third protrusion, the second groove matches the second protrusion, and the guide surface is provided between the first groove and the second groove; The data cable continues to unwind from the rotating member under the action of external force, the gear rotates along the first direction, and the gear pushes the first protrusion to make the swing member rotate; during the rotation of the swing member, the second protrusion and / or the third protrusion abut against the guide surface to drive the limiting member to rotate.

8. The freely retractable cable assembly according to claim 7, characterized in that, The limiting member rotates to bring the first groove closer to the second protrusion; when the external force disappears, the data cable continues to be wound from the rotating member, driving the gear to rotate in the second direction. The gear pushes the first protrusion to make the swing member rotate. During the rotation of the swing member, the second groove avoids the second protrusion. And / or, The first groove and the second groove are spaced apart circumferentially along the limiting member, and the number of the first groove, the second groove, and the guide surface are the same; and / or, The second protrusion and / or the third protrusion are provided with an arc surface, and the second protrusion and / or the third protrusion abut against the guide surface on the arc surface.

9. The freely retractable cable assembly according to claim 6, characterized in that, The locking assembly includes an elastic part disposed on the shell body. The elastic part abuts against the swing member on the side away from the first protrusion. The gear rotates along the first direction or the second direction, pushing the first protrusion and driving the swing member to rotate, causing the elastic part to undergo elastic deformation.

10. The freely retractable cable assembly according to any one of claims 1-9, characterized in that, The housing body includes a rotating shaft that passes through the winding assembly and the circuit board assembly along the height direction of the housing body, and the rotating component rotates around the rotating shaft.

11. The freely retractable cable assembly according to claim 10, characterized in that, The rotating component includes an axially extending mounting area and a circumferentially extending winding area; the rotating shaft passes through the mounting area, and the rotating component rotates around the rotating shaft to cause the data cable to be wound in the winding area.

12. The freely retractable cable assembly according to claim 11, characterized in that, The winding assembly includes a spring, which is sleeved on the rotating shaft. The two ends of the spring are fixed to the side wall of the mounting area and the rotating shaft, respectively. The data cable is unwound from the rotating component, and the spring undergoes elastic deformation. The spring returns to its elastic deformation, and the data cable is wound up under the elastic force of the spring.

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