A retractable cord module and charging device

Abstract

The present application relates to the technical field of telescopic data line, and particularly relates to a telescopic line module and a charging device; wherein the telescopic line module comprises a shell assembly, a winding assembly and a clamping assembly; the winding assembly is rotatably arranged in the shell assembly, and one side of the winding assembly is provided with a first clamping gap; the clamping assembly comprises a swing disc and a clamping piece which are rotatably arranged in the shell assembly respectively, and the swing disc is provided with a matching boss corresponding to the first clamping gap; when the winding assembly rotates, the swing disc is driven to rotate through cooperation of the first clamping gap and the matching boss; opposite ends of the clamping piece are provided with positioning clamping ports, and the other opposite sides of the clamping piece are provided with arc-shaped guide surfaces; the swing disc is provided with a first boss, a second boss and a third boss which are arranged at intervals and used for cooperating with the clamping piece and / or the clamping piece; the telescopic line module provided in the embodiment of the present application can effectively improve the smoothness of the telescopic line module during stretching use by improving the clamping assembly.

Description

Technical Field

[0001] This invention relates to the field of retractable data cable technology, and particularly to a retractable cable module and a charging device. Background Technology

[0002] With the development of technology, mobile electronic devices such as smartphones and tablets have become an indispensable part of people's lives. To meet users' needs for charging these devices anytime, anywhere, retractable cable chargers have become increasingly popular as a convenient solution. These chargers typically come with an automatically retractable or extendable data cable, designed to improve ease of use and space utilization. However, the locking components of existing retractable cable modules often experience jamming during rotation, resulting in less smooth cable extension and retraction, thus affecting the user experience. Summary of the Invention

[0003] To address the problem of jamming during rotation of the locking components in existing telescopic cable modules, this invention provides a telescopic cable module and a charging device.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a telescopic cable module, comprising a housing assembly, a cable winding assembly, and a locking assembly; the cable winding assembly is rotatably disposed within the housing assembly, and a first locking notch is provided on one side of the cable winding assembly; the locking assembly includes a swing disk and a locking member respectively rotatably disposed within the housing assembly, the swing disk having a mating boss corresponding to the first locking notch, and when the cable winding assembly rotates, the swing disk rotates through the engagement of the first locking notch and the mating boss; the locking member has positioning slots at opposite ends, and arc-shaped guide surfaces on the other opposite sides; the swing disk has a first boss, a second boss, and a third boss spaced apart; when the second boss is locked with the positioning slot, it restricts the rotation of the cable winding assembly; the first boss and the third boss are located on both sides of the second boss, and the arc-shaped guide surfaces are used to engage with the first boss and the second boss to adjust the orientation of the locking member; when the third boss engages with the positioning slot, the cable winding assembly can rotate smoothly.

[0005] Preferably, the arc-shaped guide surface is located on the two opposite long sides of the locking member, and the arc-shaped guide surface is arranged adjacent to the positioning slot.

[0006] Preferably, the positioning bayonet is a V-shaped bayonet.

[0007] Preferably, the locking assembly further includes an elastic element, which is fixed to the housing assembly. The side of the swing disk away from the mating boss is provided with a supporting surface, and the elastic element abuts against the supporting surface. When the swing disk rotates, the supporting surface pushes the elastic element to deform.

[0008] Preferably, the telescopic cable module further includes a sliding circuit board assembly and a data cable, the data cable being wound on the winding assembly, one end of the data cable being electrically connected to the sliding circuit board assembly, and the other end passing through the housing assembly and exposed.

[0009] The sliding circuit board assembly is provided with electrical connection contacts and plug terminals that are electrically connected to the data line, and both the electrical connection contacts and the plug terminals are exposed outside the housing assembly.

[0010] Preferably, the cable winding assembly includes a cable reel and a coil spring, the housing assembly has a mounting shaft, the cable reel is rotatably sleeved on the mounting shaft, the data cable is wound on the cable reel, and one side of the cable reel has a storage groove for storing the coil spring;

[0011] The storage groove is provided with a protruding plate, and there is a first gap between the protruding plate and the inner wall of the storage groove. The mounting shaft is provided with a second gap. One end of the coil spring is fixed in the storage groove through the first gap, and the other end of the coil spring is fixed on the mounting shaft through the second gap.

[0012] Preferably, the reel has an annular boss on the side away from the storage groove, and the inner side of the annular boss forms a mounting groove;

[0013] The sliding circuit board assembly includes a fixed circuit board and a follower circuit board. The follower circuit board is disposed in the mounting groove, and the fixed circuit board is fixed to the housing assembly. The fixed circuit board and the follower circuit board are slidably electrically connected.

[0014] The outer edge of the follower circuit board is also provided with a second locking notch, which matches the first locking notch.

[0015] The mounting slot and the follower circuit board are provided with a limiting boss on one side and a limiting notch on the other side that cooperates with the limiting boss; the outer edge of the follower circuit board is also provided with a second locking notch; when the follower circuit board is installed into the mounting slot by aligning the limiting boss and the limiting notch, the second locking notch aligns with the first locking notch from inside the mounting slot.

[0016] Preferably, the plug-in terminal is fixed to the housing assembly, and the plug-in terminal is electrically connected to the fixed circuit board via a wire; or, the plug-in terminal is vertically fixed to the fixed circuit board.

[0017] Preferably, the reel includes a first limiting plate and a second limiting plate, and the data cable is wound between the first limiting plate and the second limiting plate.

[0018] To solve the above-mentioned technical problems, the present invention provides another technical solution as follows: a charging device, comprising a device body and a retractable cable module as described above disposed on the device body, wherein the retractable cable module is electrically connected to the device body.

[0019] Compared with the prior art, the retractable cable module and charging device provided by the present invention have the following beneficial effects:

[0020] 1. The telescopic cable module provided in this embodiment of the invention improves the smoothness of its extension and retraction by modifying the locking component. Specifically, the housing assembly defines a receiving cavity to protect internal components such as the cable winding assembly, the sliding circuit board assembly, and the data cable; the cable winding assembly is located within the housing assembly and is used to store and release the data cable; the locking component enables the data cable to be pulled and stopped at will; particularly, the locking member in the locking component has an arc-shaped guide surface and a positioning slot. The positioning slot is used to cooperate with the second boss to lock the swing plate, and the arc-shaped guide surface is used to cooperate with the first and second bosses to adjust the orientation of the locking member, thereby ensuring that the locking member aligns with or avoids the second boss during the data cable extension and retraction process. The design of the arc-shaped guide surface makes the cooperation between the first and second bosses and the locking member smoother, thus making the rotation of the cable winding assembly in the telescopic cable module smoother and enabling locking at any time.

[0021] 2. In this embodiment of the invention, the arc-shaped guide surface is arranged adjacent to the positioning slot so that the arc-shaped guide surface can better guide and the second protrusion can better cooperate with the positioning slot; in addition, all external parts of the locking member except the positioning slot are also set as arc-shaped guide surfaces, thereby further ensuring that the winding assembly can rotate smoothly.

[0022] 3. In this embodiment of the invention, the V-shaped bayonet has a better guiding and clamping effect.

[0023] 4. In this embodiment of the invention, the elastic element provides an elastic reset function for the swing disk, ensuring that the swing disk can automatically return to its initial position when it is not subjected to external force; at the same time, when the swing disk is clamped with the locking element, the elastic element can also provide a clamping force for the swing disk.

[0024] 5. In this embodiment of the invention, by providing two connection interfaces, the retractable cable module can adapt to more types of application scenarios. Specifically, one end of the data cable is electrically connected to the sliding circuit board assembly, and the other end passes through the housing assembly and is exposed. The sliding circuit board assembly is further provided with electrical connection contacts and plug-in terminals exposed to the housing assembly, providing two connection interfaces: electrical connection contacts and plug-in terminals. This allows external charging devices to achieve electrical connection by plugging and unplugging the plug-in terminals, or by contacting the electrical connection contacts. As a result, this retractable cable module can adapt to more application scenarios, is easy to install on different charging devices, and has stronger versatility.

[0025] 6. In this embodiment of the invention, a positioning and rotational support is provided by installing a shaft-mounted cable reel, and an elastic reset function is provided for the cable reel by a coil spring, thereby providing an automatic cable winding function for the telescopic cable module; an installation space is provided for the coil spring by a storage slot, improving space utilization; the setting of the first gap and the second gap facilitates the installation of the coil spring.

[0026] 7. In this embodiment of the invention, the sliding electrical connection between the fixed circuit board and the follower circuit board allows the electrical connection to be maintained even when the fixed circuit board and the follower circuit board rotate relative to each other. That is, the rotation of the cable reel when the data cable is extended or retracted will not affect the stability of the electrical connection, allowing the cable reel to rotate while maintaining good power transmission performance.

[0027] 8. In this embodiment of the invention, the plug-in terminal can be either vertically fixed on the circuit board or connected to the circuit board via wires, thereby allowing the plug-in terminal to extend from any surface of the housing assembly, which is highly versatile; among them, the direct connection method improves the reliability and mechanical strength of the electrical connection, reduces the need for additional wires, and reduces the assembly complexity; the wire connection method is conducive to optimizing the internal space layout, avoiding messy wiring, and allowing the plug-in terminal to extend from any surface, increasing the flexibility of application.

[0028] 9. In this embodiment of the invention, the first limiting plate and the second limiting plate provide a fixed winding space for the data cable, so that the data cable can be neatly wound on the winding spool, avoiding the data cable from crossing or tangling during the winding process; the groove formed between the first limiting plate and the second limiting plate can guide the direction of the data cable in and out, thereby preventing the data cable from deviating during the winding and unwinding process, ensuring that it moves along the predetermined path, so that the data cable can be pulled out and retracted smoothly, reducing the risk of jamming or blockage.

[0029] 10. The present invention also provides a charging device, which, because it includes the above-mentioned retractable cable module, also has the same beneficial effects as the above-mentioned retractable cable module, and will not be described in detail here. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of the telescopic line module provided in the first embodiment of the present invention.

[0031] Figure 2 This is an exploded view of the telescopic line module provided in the first embodiment of the present invention.

[0032] Figure 3 This is an exploded view of a portion of the telescopic line module structure provided in the first embodiment of the present invention.

[0033] Figure 4 This is an exploded view of the locking component in the telescopic line module provided in the first embodiment of the present invention.

[0034] Figure 5 This is an exploded view of the sliding circuit board assembly in the telescopic line module provided in an embodiment of the present invention.

[0035] Figure 6 This is a schematic diagram of the fixed circuit board in the telescopic cable module provided in this embodiment of the invention. Figure 1 .

[0036] Figure 7 This is a schematic diagram of the fixed circuit board in the telescopic cable module provided in this embodiment of the invention. Figure 2 .

[0037] Figure 8 This is a schematic diagram of the winding assembly in the telescopic wire module provided in an embodiment of the present invention.

[0038] Figure 9 This is a cross-sectional view of the telescopic line module provided in an embodiment of the present invention.

[0039] Figure 10 This is a structural schematic diagram of the telescopic line module provided in an embodiment of the present invention.

[0040] Figure 11 This is a schematic diagram of the charging device provided in an embodiment of the present invention. Figure 1 .

[0041] Figure 12 This is a schematic diagram of the charging device provided in an embodiment of the present invention. Figure 2 .

[0042] Explanation of reference numerals in the attached diagram:

[0043] 100. Charging equipment; 10. Telescopic cable module; 20. Main body;

[0044] 1. Housing assembly; 11. Upper housing; 111. Opening; 12. Lower housing; 121. Mounting shaft; 1211. Second clearance;

[0045] 2. Cable winding assembly; 21. Cable winding reel; 211. Storage slot; 2111. Protruding plate; 2112. First gap; 212. First limiting plate; 213. Second limiting plate; 22. Coil spring; 23. Annular boss; 231. First locking notch; 232. Limiting notch; 24. Mounting slot;

[0046] 3. Sliding circuit board assembly; 31. Fixed circuit board; 311. Electrical connection contact point; 312. Plug-in terminal; 32. Follower circuit board; 321. Fixed plate; 3211. Limiting boss; 3212. Second locking notch; 3213. Conductive ring; 322. Flexible conductive terminal;

[0047] 4. Data cable; 5. Locking assembly; 51. Swinging plate; 511. Mating boss; 512. First boss; 513. Second boss; 514. Third boss; 515. Supporting surface; 52. Locking component; 521. Positioning slot; 522. Arc-shaped guide surface; 53. Elastic component. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 and not intended to limit the invention.

[0049] In the embodiments provided by this invention, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0050] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also recognize that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily essential to the invention.

[0051] In various embodiments of the present invention, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0052] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It is particularly important to note that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0053] Please combine Figures 1 to 4 The first embodiment of the present invention provides a telescopic cable module 10, including a housing assembly 1, a cable winding assembly 2, and a locking assembly 5; the cable winding assembly 2 is rotatably disposed within the housing assembly 1, and a first locking notch 231 is provided on one side of the cable winding assembly 2; the locking assembly 5 includes a swing disk 51 and a locking member 52 respectively rotatably disposed within the housing assembly 1, the swing disk 51 having a mating boss 511 corresponding to the first locking notch 231, and when the cable winding assembly 2 rotates, the swing disk 51 is driven to rotate through the engagement of the first locking notch 231 and the mating boss 511; the locking member 52 has fixed ends at opposite ends. The positioning slot 521 and the other two opposite sides of the positioning member 52 are provided with arc-shaped guide surfaces 522; the swing disk 51 is provided with a first boss 512, a second boss 513 and a third boss 514 spaced apart; when the second boss 513 is locked with the positioning slot 521, it restricts the rotation of the winding assembly 2; the first boss 512 and the third boss 514 are located on both sides of the second boss 513, and the arc-shaped guide surfaces 522 are used to cooperate with the first boss 512 and the second boss 513 to adjust the orientation of the positioning member 52; when the third boss 514 is engaged with the positioning slot 521, the winding assembly 2 can rotate smoothly.

[0054] It is understood that the telescopic cable module 10 provided in this embodiment of the invention can effectively improve the smoothness of the telescopic cable module 10 during use by improving the locking component 5. Specifically, housing assembly 1 defines a receiving cavity to protect internal components such as cable winding assembly 2, sliding circuit board assembly 3, and data cable 4; cable winding assembly 2 is located inside housing assembly 1 and is used to store and release data cable 4; locking assembly 5 is used to realize the function of pulling and stopping data cable 4; in particular, the locking member 52 in locking assembly 5 has an arc-shaped guide surface 522 and a positioning slot 521. The positioning slot 521 is used to cooperate with the second boss 513 to lock the swing disk 51. The arc-shaped guide surface 522 is used to cooperate with the first boss 512 and the second boss 513 to adjust the orientation of the locking member 52, so that the locking member 52 is aligned with or avoids the second boss 513 during the winding and unwinding of data cable 4. The arc design makes the cooperation between the first boss 512 and the second boss 514 and the locking member 52 smoother, so that the cable winding assembly 2 in the telescopic cable module 10 rotates more smoothly and can be locked at any time.

[0055] Please combine Figure 3 and Figure 4 In one embodiment, the swing disk 51 and the locking member 52 are provided with rotating holes, and the housing assembly 1 is provided with rotating shafts corresponding to the rotation of the swing disk 51 and the locking member 52. The swing disk 51 and the locking member 52 are rotatably mounted on the housing assembly 1 through the shaft holes.

[0056] In one implementation, the arc-shaped guide surface 522 is located on the two opposite long sides of the locking member 52, and the arc-shaped guide surface 522 is arranged adjacent to the positioning slot 521.

[0057] Understandably, in this embodiment of the invention, the arc-shaped guide surface 522 is arranged adjacent to the positioning slot 521 so that the arc-shaped guide surface 522 can better guide and the second protrusion 513 can better cooperate with the positioning slot 521; in addition, all external parts of the locking member 52 except for the positioning slot 521 are also set as arc-shaped guide surfaces 522, thereby further ensuring that the winding assembly 2 can rotate smoothly.

[0058] In one implementation, the locking member 52 is generally rectangular in shape, with positioning slots 521 located on the two opposite short sides of the locking member 52, and arc-shaped guide surfaces 522 located on the two opposite long sides of the locking member 52.

[0059] As one implementation method, the positioning bayonet 521 is a V-shaped bayonet.

[0060] Understandably, the V-shaped bayonet has better guiding and locking effects.

[0061] In one implementation, when the first boss 512 and the second boss 513 abut against the arc-shaped guide surface 522 as the swing disk 51 rotates, the locking member 52 is driven to rotate to adjust the orientation of the locking member 52; when the third boss 514 engages with the positioning slot 521, the winding assembly 2 can rotate smoothly.

[0062] Understandably, when the first boss 512 and the second boss 513 abut against the arc-shaped guide surface 522 of the locking member 52, the curved surface design of the arc-shaped guide surface 522 can convert the vertical impact force into a rotational tangential force, reduce the frictional resistance between the boss and the locking member 52, and make the process of the boss pushing the locking member 52 to rotate smoother, avoiding the jamming and sticking caused by traditional right angle or straight surface contact; thus ensuring the continuity of the action when stretching or retracting the data cable.

[0063] In one embodiment, the locking assembly 5 also includes an elastic element 53, which is fixed to the housing assembly 1. The swing disk 51 has a supporting surface 515 on the side away from the mating boss 511, and the elastic element 53 supports the supporting surface 515. When the swing disk 51 rotates, the supporting surface 515 pushes the elastic element 53 to deform.

[0064] Understandably, in this embodiment of the invention, the elastic element 53 provides an elastic reset function for the swing disk 51, ensuring that the swing disk 51 can automatically return to its initial position when it is not subjected to external force; at the same time, when the swing disk 51 is clamped to the locking element 52, the elastic element 53 can also provide a clamping force for the swing disk 51.

[0065] Please combine Figure 1 and Figure 2 In one embodiment, the retractable cable module 10 further includes a data cable 4 and a plug-in terminal 312. The data cable 4 is wound on the cable winding assembly 2. One end of the data cable 4 is electrically connected to the sliding circuit board assembly 3, and the other end passes through the housing assembly 1 and is exposed. The sliding circuit board assembly 3 is provided with a plug-in terminal 312 that is electrically connected to the data cable 4. The data cable 4 is electrically connected to the plug-in terminal 312 through the sliding circuit board assembly 3. At least a portion of the plug-in terminal 312 is exposed outside the housing assembly 1, and the plug-in terminal 312 is fixed relative to the housing assembly 1.

[0066] It is understood that the retractable cable module 10 provided in this embodiment of the invention uses a plug-in terminal 312 fixed relative to the housing assembly 1 as the input port of the retractable cable module. During use, the retractable cable module can be better fixed to an external charging device and maintain a stable electrical connection. It is also easy to plug and unplug, allowing the retractable cable module to adapt to more application scenarios and be easily installed on different charging devices, thus increasing its versatility. Specifically, the cable winding assembly 2 is rotatably disposed within the housing assembly 1, and the data cable 4 is retracted and released by forward or reverse rotation. One end of the data cable 4 is electrically connected to the sliding circuit board assembly 3, and the other end passes through the housing assembly 1 and is exposed as a working end. The user can plug into an external electronic device through this exposed working end to... The retractable cable module is charged by a plug-in terminal 312 exposed on the housing assembly 1 as an output terminal on the sliding circuit board assembly 3. This allows the user to make an electrical connection between the retractable cable module and the external charging device through the plug-in terminal 312. In this solution, the plug-in terminal 312 is set to be relatively fixed to the housing assembly 1. That is, after the plug-in terminal 312 is inserted into the external charging device, the housing assembly 1 of the retractable cable module and the external charging device are relatively fixed. This prevents the retractable cable module from shaking when the user stretches the data cable, making it easier for the user to use. At the same time, the plug-in design allows this retractable cable module to adapt to more application scenarios and is easy to install on different charging devices, making it more versatile.

[0067] Meanwhile, combined with the design of the locking component 5 and the plug-in terminal 312, the plug-in terminal 312 can make the connection between the telescopic cable module and the external device more stable, while the locking component 5 can make the extension and retraction of the data cable 4 smoother, thereby reducing the impact of the extension and retraction of the data cable 4 on the connection stability between the plug-in terminal 312 and the external device.

[0068] It should be noted that the retractable cable module 10 is specifically designed for installation on external charging devices or other electronic devices, and its core function is to provide a management solution for automatically retractable data cables 4. Specifically, this retractable cable module 10 can be plugged into external sockets or power banks, or other external charging devices with corresponding power supply interfaces, via connectors.

[0069] In this embodiment of the invention, the retractable cable module 10 can be considered a type of retractable data cable. It can be plugged into a fixed external charging device such as a socket or computer host, or it can be carried around and plugged into a power bank or other device. That is, by setting an exposed plug-in terminal 312, if the corresponding external device has a corresponding interface that is compatible with the plug-in terminal 312, the retractable cable module 10 can be easily plugged into and installed on the charging device, and used as an external expandable retractable data cable. Moreover, since the plug-in terminal 312 is relatively fixed to the housing component 1, the user experience of the retractable cable module in this embodiment is greatly improved compared with existing retractable data cables. This is because existing retractable data cables connect to the circuit board through flexible data cables at both the input and output ends. When stretched, the connection between the housing of the retractable data cable and the external charging device is flexible, meaning that the housing of the retractable data cable will shake as the data cable is stretched, resulting in a poor user experience. At the same time, the shaking data cable will also cause the connection between the retractable data cable and the external charging device to be unstable and easy to detach.

[0070] In this embodiment of the invention, by adding an exposed plug-in terminal 312, the retractable cable module 10 can not only be embedded into a device as a built-in module, but also, if the corresponding external device has a corresponding interface compatible with the plug-in terminal 312, the retractable cable module 10 can be easily plugged and unplugged into the charging device and used as an external extension retractable cable module 10. This innovative design significantly expands the application range and installation method of the retractable cable module 10. The added plug-in terminal 312 makes the retractable cable module 10 no longer limited to internal installation in specific devices, but can be widely used in various devices with compatible interfaces. Whether it is a household appliance, office equipment, or public charging facility, as long as there is a compatible interface, the retractable cable module 10 can be quickly installed, achieving true "one module, multiple uses".

[0071] Optionally, the connector 312 can be one of a Type-C connector, a Micro-USB connector, a Mini-USB connector, or a Lightning connector. It should be noted that the retractable cable module in this embodiment is generally used as a charging data cable. Therefore, the above are only examples of some commonly used connector types. In fact, the connector 312 can use any type of charging connector available on the market, and adapting to different charging connectors does not require significant changes to the design concept of this solution; therefore, it will not be elaborated further here.

[0072] As one approach, the plug terminal 312 is a Type-C terminal. Considering that different devices may use different interface standards, the design of the plug terminal 312 needs to have a certain degree of universality and adaptability to meet the broad market demand. As a universal terminal, Type-C has been widely used in various products.

[0073] Please combine Figure 1 and Figure 2 In one embodiment, the housing assembly 1 includes an upper housing 11 and a lower housing 12 connected together, defining a receiving cavity between the upper housing 11 and the lower housing 12. The upper housing 11 or the lower housing 12 is provided with at least two openings 111, and an electrical contact point 311 is exposed through one of the openings 111. A plug-in terminal 312 is exposed through any outer surface of the housing assembly 1.

[0074] Understandably, in this embodiment of the utility model, the upper housing 11 and the lower housing 12 are connected to form a receiving cavity, which is simple in structure and easy to assemble; by providing at least two openings 111, more installation positions are provided for the electrical connection contact point 311, and the electrical connection contact point 311 of the telescopic wire module 10 can be selected with different orientations according to the needs to suit different usage situations.

[0075] In one embodiment, the plug-in terminal 312 and the electrical contact point 311 are exposed on the same side of the housing assembly 1.

[0076] Understandably, in this embodiment of the present invention, a variety of connection methods are provided through two different input ports: plug-in terminal 312 and electrical connection contact point 311. At the same time, setting the two input ports on the same side of the housing assembly 1 helps to ensure the consistency of the telescopic cable module 10 during installation and use. Regardless of which input port is used, it is installed and fixed in a similar orientation, reducing the installation complexity caused by different orientations, facilitating user operation, and also simplifying internal wiring.

[0077] Please continue reading. Figure 2 In one embodiment, the sliding circuit board assembly 3 includes a fixed circuit board 31 and a follower circuit board 32 with sliding electrical connection. The data line 4 is electrically connected to the fixed circuit board 31 through the follower circuit board 32. The follower circuit board 32 is disposed on the winding assembly 2, the fixed circuit board 31 is disposed on the housing assembly 1, and the plug terminal 312 and the electrical connection contact point 311 are disposed on the fixed circuit board 31.

[0078] Understandably, in this embodiment of the present invention, the sliding electrical connection between the fixed circuit board 31 and the follower circuit board 32 allows the electrical connection to be maintained even when the fixed circuit board 31 and the follower circuit board 32 rotate relative to each other. That is, the rotation of the reel 21 when the data cable 4 is extended or retracted will not affect the stability of the electrical connection, allowing the reel 21 to rotate while maintaining good power transmission performance.

[0079] Please combine Figure 5 and Figure 6 In one embodiment, the follower circuit board 32 includes a fixed plate 321 and an elastic conductive terminal 322 disposed on the fixed plate 321. A conductive ring 3213 is provided on the fixed circuit board 31 corresponding to the elastic conductive terminal 322. The elastic contact end of the elastic conductive terminal 322 elastically abuts against the conductive ring 3213. When the follower circuit board 32 rotates together with the winding reel 21, the follower circuit board 32 moves relative to the fixed circuit board 31. At this time, the elastic contact end of the elastic conductive terminal 322 slides along the conductive ring 3213, thereby realizing a sliding electrical connection.

[0080] Understandably, regardless of how long or short the data cable 4 is pulled out, the internal electrical connection will not be affected, avoiding potential open circuits or poor contact issues in traditional rigid connection methods, thus ensuring the stability and reliability of the charging process. At the same time, the design of the flexible conductive terminal 322 allows for a certain amount of deformation space, reducing wear caused by rotation.

[0081] In one embodiment, the number of elastic conductive terminals 322 is at least two, and the elastic conductive terminals 322 are arranged in an array on the fixing plate 321.

[0082] Understandably, by setting multiple flexible conductive terminals 322, even if one or more contact points malfunction, such as due to dust accumulation or oxidation, the other terminals can still maintain a good electrical connection. This design significantly improves the fault tolerance and stability of the entire system, reducing the risk of charging interruption caused by a single contact point failure. The array arrangement allows each flexible conductive terminal 322 to be evenly distributed on the fixing plate 321, thereby distributing the contact pressure to multiple points. This avoids wear caused by excessive force on a single point, extends the service life of the terminals and conductive rings 3213, and improves the overall system durability.

[0083] Please see Figure 2 In one embodiment, the plug-in terminal 312 is vertically fixed on the fixed circuit board 31.

[0084] Understandably, direct connection improves the reliability and mechanical strength of electrical connections, reduces the need for additional wires, lowers assembly complexity, reduces contact resistance, improves current transmission efficiency, and reduces energy loss and heat generation risk.

[0085] Please see Figure 7 In one embodiment, the plug-in terminal 312 is fixed to the housing assembly 1, and the plug-in terminal 312 is electrically connected to the fixed circuit board 31 via wires.

[0086] Understandably, the wire connection method helps optimize the internal space layout, avoids messy wiring, makes the internal structure more neat and orderly, and facilitates maintenance and repair; it also allows the plug-in terminal 312 to protrude from any surface, increasing the flexibility of application.

[0087] Combining the two implementation methods above, the plug terminal 312 can be either vertically fixed on the circuit board or connected to the circuit board via wires, thereby allowing the plug terminal 312 to extend from any surface of the housing assembly 1, making it highly versatile.

[0088] Please combine Figure 8 and Figure 9 In one embodiment, the winding assembly 2 includes a winding reel 21 and a coil spring 22. The housing assembly 1 is provided with a mounting shaft 121. The winding reel 21 is rotatably sleeved on the mounting shaft 121. One side of the winding reel 21 is provided with a storage groove 211 for storing the coil spring 22. A protruding plate 2111 is provided in the storage groove 211. There is a first gap 2112 between the protruding plate 2111 and the inner wall of the storage groove 211. The mounting shaft 121 is provided with a second gap 1211. One end of the coil spring 22 is fixed in the storage groove 211 through the first gap 2112, and the other end of the coil spring 22 is fixed on the mounting shaft 121 through the second gap 1211.

[0089] Understandably, in this embodiment of the utility model, the mounting shaft 121 provides positioning and rotation support for the winding reel 21, and the coil spring 22 provides elastic reset function for the winding reel 21, thereby providing the telescopic cable module 10 with automatic cable reel 4 winding function; the storage groove 211 provides installation space for the coil spring 22, improving space utilization; the setting of the first gap 2112 and the second gap 1211 facilitates the installation of the coil spring 22.

[0090] In one embodiment, the cable reel 21 includes a first limiting plate 212 and a second limiting plate 213, and the data cable 4 is wound between the first limiting plate 212 and the second limiting plate 213.

[0091] Understandably, the first limiting plate 212 and the second limiting plate 213 provide a fixed winding space for the data cable 4, allowing the data cable 4 to be neatly wound on the winding spool 21, avoiding the data cable 4 from crossing or tangling during the winding process; the groove formed between the first limiting plate 212 and the second limiting plate 213 can guide the direction of the data cable 4 in and out, thereby preventing the data cable 4 from deviating during the winding and unwinding process, ensuring that it moves along the predetermined path, so that the data cable 4 can be pulled out and retracted smoothly, reducing the risk of jamming or blockage.

[0092] Please combine Figure 3 , Figure 4 and Figure 10 In one embodiment, the winding reel 21 has an annular boss 23 on the side away from the opening 111 of the storage groove 211. An installation groove 24 is formed inside the annular boss 23. The follower circuit board 32 is disposed in the installation groove 24. The annular boss 23 has at least two first locking notches 231. The locking component 5 cooperates with the first locking notches 231.

[0093] Understandably, in this embodiment of the present invention, the locking component 5 and the first locking notch 231 on the winding reel 21 can be used to lock and stop the winding reel 21 at any time, thereby enabling the retractable cable module 10 to be pulled and stopped at will.

[0094] In one embodiment, the inner wall of the annular boss 23 and the follower circuit board 32 are provided with a limiting boss 3211 on one side and a limiting notch 232 that cooperates with the limiting boss 3211 on the other side; the outer edge of the follower circuit board 32 is also provided with a second locking notch 3212; when the follower circuit board 32 is installed into the mounting groove 24 by aligning the limiting boss 3211 and the limiting notch 232, the second locking notch 3212 aligns with and matches the first locking notch 231 from the mounting groove 24.

[0095] Understandably, in this embodiment of the present invention, the cooperation between the limiting boss 3211 and the limiting notch 232 ensures that the follower circuit board 32 is installed in the correct orientation, thereby ensuring the alignment of the first locking notch 231 and the second locking notch 3212; the simultaneous cooperation of the locking component 5 with the first locking notch 231 and the second locking notch 3212 helps to ensure the stability of the locking.

[0096] Please combine Figures 1 to 10The operation and principle of the telescopic cable module 10 provided by this utility model are briefly described as follows: When the data cable 4 is not pulled out, it is tightly wound on the reel 21, located between the first limiting plate 212 and the second limiting plate 213. The coil spring 22 is in a compressed state, providing elastic restoring force. When the user pulls one end of the data cable 4, the data cable 4 gradually unfolds from the reel 21. As the data cable 4 is pulled out, the reel 21 is compressed under the action of the coil spring 22.

[0097] When the user releases the data cable 4 or stops applying tension, the elastic restoring force of the coil spring 22 drives the reel 21 to reverse, achieving automatic winding. At this time, the second protrusion 513 of the reel 21 in the locking assembly 5 cooperates with the locking member 52 to restrict the rotation of the swing disk 51, and the mating protrusion 511 on the swing disk 51 cooperates with the first locking notch 231 to restrict the rotation of the winding, thereby locking the reel 21 in the corresponding position and achieving the function of pulling and stopping. When the user pulls the data cable 4 slightly again to release the cooperation between the second protrusion 513 and the locking member 52, and then releases the cable, the user can achieve the function of pulling and stopping. This allows the data cable 4 to be wound up normally. Specifically, during the pulling or winding process, when the first protrusion 512 and the second protrusion 513 cooperate with the arc-shaped guide surface 522 of the locking member 52, the orientation of the locking member 52 can be adjusted. When the second protrusion 513 cooperates with the positioning slot 521 of the locking member 52, the swing plate 51 can be stopped, thereby stopping the winding reel 21. When the third protrusion 514 cooperates with the positioning slot 521 of the locking member 52, the locking member 52 can be kept in a state that does not hinder the winding reel 21 from reversing and winding up.

[0098] As the data cable 4 is pulled out and retracted, the reel 21 will rotate counterclockwise and clockwise accordingly; the follower circuit board 32 is fixed on the reel 21 and therefore rotates with the reel 21; the elastic conductive terminal 322 on the follower circuit board 32 keeps in contact with the conductive ring 3213 on the fixed circuit board 31 and slides along it to ensure the stability of the electrical connection.

[0099] Please see Figure 11 and Figure 12 To solve the above-mentioned technical problems, the present invention provides another technical solution as follows: a charging device 100, including a device body 20 and a telescopic cable module 10 disposed on the device body 20 as described above, the telescopic cable module 10 being electrically connected to the device body 20.

[0100] It is understood that the charging device 100 provided in this embodiment of the invention has the same beneficial effects as the telescopic cable module 10, since it includes the telescopic cable module 10 described above, and will not be described in detail here.

[0101] In one implementation, the retractable cable module 10 can be installed inside the body 20 of the charging device 100 as a built-in module, and the data cable 4 can be extended outside the charging device body 20 for use.

[0102] In one implementation, the retractable cable module 10 can be installed as an external module on the outside of the charging device body 20. Understandably, for ease of installation and removal, when the retractable cable module 10 is used as an external module, it is preferable to connect the plug-in terminals to the charging device body electrically; however, if a corresponding contact interface is provided on the outer surface of the charging device body 20, the two can also be electrically connected through the electrical contact point.

[0103] The foregoing has provided a detailed description of a retractable cable module and a charging device disclosed in the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention. Any modifications, equivalent substitutions, and improvements made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A telescopic cable module, characterized in that: Includes housing assembly, winding assembly, and locking assembly; The winding assembly is rotatably disposed within the housing assembly, and a first locking notch is provided on one side of the winding assembly; The locking assembly includes a swing disk and a locking member that are rotatably disposed within the housing assembly. The swing disk has a mating boss corresponding to the first locking notch. When the winding assembly rotates, the swing disk is driven to rotate through the engagement of the first locking notch and the mating boss. The locking component has positioning slots at both ends and arc-shaped guide surfaces on the other two opposite sides. The swing disk is provided with a first protrusion, a second protrusion and a third protrusion arranged at intervals; when the second protrusion is locked with the positioning slot, it restricts the rotation of the winding assembly; The first boss and the third boss are located on both sides of the second boss. The arc-shaped guide surface is used to cooperate with the first boss and the second boss to adjust the position of the locking member. When the third boss cooperates with the positioning slot, the winding assembly can rotate smoothly.

2. The telescopic cable module as described in claim 1, characterized in that: The arc-shaped guide surface is located on the two opposite long sides of the locking component, and the arc-shaped guide surface is arranged adjacent to the positioning slot.

3. The telescopic cable module as described in claim 1, characterized in that: The positioning bayonet is a V-shaped bayonet.

4. The telescopic cable module as described in claim 1, characterized in that: The locking assembly also includes an elastic element, which is fixed to the housing assembly. The side of the swing disk away from the mating boss is provided with a supporting surface, and the elastic element abuts against the supporting surface. When the swing disk rotates, the supporting surface pushes the elastic element to deform.

5. The telescopic cable module as described in claim 1, characterized in that: The telescopic cable module also includes a sliding circuit board assembly and a data cable. The data cable is wound on the winding assembly, one end of the data cable is electrically connected to the sliding circuit board assembly, and the other end passes through the housing assembly and is exposed. The sliding circuit board assembly is provided with electrical connection contacts and plug terminals that are electrically connected to the data line, and both the electrical connection contacts and the plug terminals are exposed outside the housing assembly.

6. The telescopic cable module as described in claim 5, characterized in that: The cable winding assembly includes a cable reel and a coil spring. The housing assembly has a mounting shaft inside. The cable reel is rotatably mounted on the mounting shaft. The data cable is wound on the cable reel. One side of the cable reel has a storage groove for storing the coil spring. The storage groove is provided with a protruding plate, and there is a first gap between the protruding plate and the inner wall of the storage groove. The mounting shaft is provided with a second gap. One end of the coil spring is fixed in the storage groove through the first gap, and the other end of the coil spring is fixed on the mounting shaft through the second gap.

7. The telescopic cable module as described in claim 6, characterized in that: The reel has an annular boss on the side away from the storage groove, and an installation groove is formed on the inner side of the annular boss. The sliding circuit board assembly includes a fixed circuit board and a follower circuit board. The follower circuit board is disposed in the mounting groove, and the fixed circuit board is fixed to the housing assembly. The fixed circuit board and the follower circuit board are slidably electrically connected. The outer edge of the follower circuit board is also provided with a second locking notch, which matches the first locking notch. The mounting slot and the follower circuit board are provided with a limiting boss on one side and a limiting notch on the other side that cooperates with the limiting boss; the outer edge of the follower circuit board is also provided with a second locking notch; when the follower circuit board is installed into the mounting slot by aligning the limiting boss and the limiting notch, the second locking notch aligns with the first locking notch from inside the mounting slot.

8. The telescopic line module as described in claim 7, characterized in that: The plug-in terminal is fixed to the housing assembly, and the plug-in terminal is electrically connected to the fixed circuit board via a wire; or, the plug-in terminal is vertically fixed to the fixed circuit board.

9. The telescopic cable module as described in claim 6, characterized in that: The reel includes a first limiting plate and a second limiting plate, and the data cable is wound between the first limiting plate and the second limiting plate.

10. A charging device, characterized in that: The device includes a device body and a telescopic cable module as described in any one of claims 1 to 9 disposed on the device body, wherein the telescopic cable module is electrically connected to the device body.

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