Single-pull telescopic line module applied to electric energy transmission

Abstract

The invention discloses a single-pull telescopic line module applied to electric energy transmission, which comprises a charging line storage box, a circuit board assembly, a charging input assembly, a charging output assembly and a winder, and is characterized in that the circuit board assembly and the winder are arranged in the charging line storage box, and the charging line storage box is provided with a threading hole; the charging output assembly comprises a charging wire and an output connector, the charging wire penetrates through the wire penetrating hole and is wound around the winder, one end of the charging wire is electrically connected to the circuit board assembly, the other end of the charging wire is electrically connected to the output connector, and the charging wire can be pulled out or wound in the winder. The problems that an existing charging wire is difficult to store and the length is fixed are solved, and the charging wire has the advantages of being convenient to store, preventing the charging wire from being damaged and being adjustable in length.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy transmission, and in particular to a single-pull telescopic wire module used for electric energy transmission. Background Art

[0002] With the rise of smart products and the increase in their functions, smart products have become a necessity for frequent use in daily life, and chargers have also become a necessity that needs to be used frequently in daily life. Existing chargers or other power products need to use interfaces to output power, usually using charging cables. People often need to use power devices when traveling, and many existing charging cables are easy to bend when stored, which can easily damage the metal conductor in the charging cable and reduce its service life. In addition, charging cables that are not organized are messy and inconvenient to carry. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a single-pull retractable cable module for transmitting electric energy to solve the technical problems that the existing charging cables are easy to bend when stored, which easily damages the metal conductor in the charging cables and reduces the service life, and the charging cables are messy and inconvenient to carry if not organized.

[0004] To achieve the above object, the present invention adopts the following technical solutions: An embodiment of the present invention provides a single-pull retractable wire module for transmitting electric energy, comprising: a charging wire storage box, a circuit board assembly, a charging input assembly, a charging output assembly and a cord reel, wherein the circuit board assembly and the cord reel are both arranged in the charging wire storage box, and the charging wire storage box is provided with a threading hole; the charging output assembly comprises a charging wire and an output connector, the charging wire is passed through the threading hole and wound around the cord reel, one end of the charging wire is electrically connected to the circuit board assembly, and the other end is electrically connected to the output connector, and the charging wire can be pulled out or wound in on the cord reel; wherein the charging input assembly comprises a receiving coil electrically connected to the circuit board assembly, the receiving coil is used to receive magnetic induction to generate current, and the circuit board assembly is used to receive the current and transmit it to the charging wire after processing.

[0005] Furthermore, the cord reel includes a cord winding turntable, a first rotating shaft is provided on the cord winding turntable, the cord winding turntable is rotatably connected to the charging cord storage box via the first rotating shaft, and a reset coil spring is provided between the cord winding turntable and the charging cord storage box; wherein, the charging cord is wound around the cord winding turntable, and when the charging cord is pulled out by external force, the cord winding turntable rotates forward, and the reset coil spring is used to provide elastic reset force for the forward rotation of the cord winding turntable; when the pulled out charging cord is released from external force restriction, the reset coil spring drives the cord winding turntable to rotate in the reverse direction, so that the charging cord is wound around the cord winding turntable.

[0006] Furthermore, it also includes a cleaning mechanism, which is arranged between the wire winding turntable and the wire threading hole in the charging wire storage box, and the charging wire is passed through the cleaning mechanism. The cleaning mechanism is used to clean the charging wire passing therethrough.

[0007] Furthermore, the cleaning mechanism includes a fixed semi-ring plate and a movable semi-ring plate, the opposite sides of the fixed semi-ring plate and the movable semi-ring plate are symmetrical semi-cylindrical surfaces, and cleaning parts are provided on the opposite sides of the fixed semi-ring plate and the movable semi-ring plate, the charging cable is located between the fixed semi-ring plate and the movable semi-ring plate, the fixed semi-ring plate is fixedly connected to the charging cable storage box, the movable semi-ring plate is rotatably connected to the charging cable storage box, there is a point on the rotation trajectory of the movable semi-ring plate that abuts the fixed semi-ring plate, and when the movable semi-ring plate abuts the fixed semi-ring plate, a circular hole is enclosed between the movable semi-ring plate and the fixed semi-ring plate.

[0008] Furthermore, the diameter of the circular hole is greater than or equal to the wire diameter of the charging cable.

[0009] Furthermore, a knob is rotatably connected to the outside of the charging cable storage box, and a portion of the knob passes through the charging cable storage box and is transmission-connected to the movable semi-ring plate. Rotation of the knob drives the movable semi-ring plate to rotate closer to or away from the fixed semi-ring plate.

[0010] Furthermore, a second rotating shaft is provided on the movable semi-ring plate, and the movable semi-ring plate is rotatably connected to the charging cable storage box through the second rotating shaft, a first worm gear is connected to the first rotating shaft, a second worm gear is connected to the second rotating shaft, a worm is provided between the first worm gear and the second worm gear, and the worm is positioned in the charging cable storage box through a bearing, and when the first rotating shaft rotates, it drives the first worm gear to rotate, the first worm gear drives the worm to rotate, the worm drives the second worm gear to rotate, the second worm gear drives the second rotating shaft to rotate, and the second rotating shaft drives the movable semi-ring plate to rotate to approach or move away from the fixed semi-ring plate.

[0011] Furthermore, the cleaning member is connected to the fixed semi-ring plate and the movable semi-ring plate respectively through springs.

[0012] Furthermore, the cleaning element at least includes sponge or memory foam.

[0013] Furthermore, the output connector includes at least a Type-c interface, a Lightning interface, or a Microusb interface.

[0014] The single-pull retractable cable module for transmitting electric energy of the present invention comprises a charging cable storage box, a circuit board assembly, a charging input assembly, a charging output assembly and a cable reel, wherein the charging cable of the charging output assembly can be pulled out or reeled in on the cable reel, and the charging cable can be stored and the length adjusted by the cable reel, which solves the problems of difficult storage and fixed length of the existing charging cable, and has the advantages of easy storage, prevention of damage to the charging cable, and adjustable length.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional view of a single-pull telescopic wire module for transmitting electric energy according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of a single-pull telescopic wire module for transmitting electric energy according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a cable reel for a single-pull retractable cable module for transmitting electric energy according to an embodiment of the present invention; Figure 4 It is a first schematic diagram of a cleaning mechanism of a single-pull telescopic wire module for transmitting electric energy according to an embodiment of the present invention; Figure 5 This is a second schematic diagram of the cleaning mechanism of the single-pull telescopic wire module for transmitting electrical energy according to an embodiment of the present invention.

[0017] Description of reference numerals: 10. Charging cable storage box; 11. Circuit board assembly; 12. Charging cable; 13. Output connector; 14. Cable reel; 141. Cable reel turntable; 142. Reset coil spring; 143. First rotating shaft; 15. Cleaning mechanism; 151. Fixed semi-ring plate; 152. Movable semi-ring plate; 153. Cleaning member; 154. Round hole; 155. Second rotating shaft; 16. First worm gear; 161. Worm; 162. Second worm gear; 17. Receiving coil. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “resin”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0025] With the rise of smart products and the increase in their functions, smart products have become a necessity for frequent use in daily life, and chargers have also become a necessity that needs to be used frequently in daily life. Existing chargers or other power products need to use interfaces to output power, usually using charging cables to achieve power output. People often need to use power devices when traveling, and many existing charging cables are easy to bend when stored, which can easily damage the metal conductor in the charging cable and reduce its service life. In addition, charging cables that are not organized are messy and inconvenient to carry.

[0026] See also Figures 1 to 5 , the present application aims to solve the technical problems that the charging cable 12 is easy to bend and damage the inner conductor when stored, and the charging cable 12 is messy and inconvenient to carry. In order to solve these problems, the present application proposes a single-pull retractable cable module for transmitting electric energy, including a charging cable storage box 10, a circuit board assembly 11, a charging input assembly, a charging output assembly and a reel 14, the circuit board assembly 11 and the reel 14 are both arranged in the charging cable storage box 10, and the charging cable storage box 10 is provided with a threading hole; the charging output assembly includes a charging cable 12 and an output connector 13, the charging cable 12 is passed through the threading hole and wound on the reel 14, one end of the charging cable 12 is electrically connected to the circuit board assembly 11, and the other end is electrically connected to the output connector 13, and the charging cable 12 can be pulled out or wound on the reel 14; wherein, the charging input assembly includes a receiving coil 17 electrically connected to the circuit board assembly 11, the receiving coil 17 is used to receive current, and the circuit board assembly 11 is used to receive current and transmit it to the charging cable 12 after processing.

[0027] In this embodiment, the combination of the charging cable storage box 10, the circuit board assembly 11, the charging input assembly, the charging output assembly and the cord reel 14 solves the problem that the charging cable 12 is easily bent and the inner conductor is damaged when stored. The charging input assembly and the charging output assembly are connected through the circuit board assembly 11, thereby realizing the transmission of electrical signals of the charging cable 12. The cord reel 14 allows the charging cable 12 to be pulled out and reeled in, avoiding the clutter and inconvenience of carrying the charging cable 12. The circuit board assembly 11 processes the input current and transmits it to the charging cable 12 to ensure stable transmission of the current. The addition of the receiving coil 17 enables the system to receive current, further enhancing the applicability of the single-pull telescopic cable module of the present application, so that it can be used in more application scenarios. Through the above technical means, the single-pull retractable cable module effectively solves the common problems in the storage and use of the charging cable 12, and improves the service life and portability of the charging cable 12. When the user needs to use the charging cable 12, the charging cable 12 is gently pulled out; when the use is finished, the charging cable 12 is released, and the reel 14 automatically reels the charging cable 12 into the storage box. It should be explained that the circuit board assembly 11 and the functions it can achieve belong to the prior art and will not be described in detail here.

[0028] In some embodiments, the user places the charging cable storage box 10 at the output end of the wireless charging device. The receiving coil 17 receives the electromagnetic radiation emitted by the wireless charging device and converts it into current, which is then transmitted to the circuit board assembly 11. After the circuit board assembly 11 processes the current, it transmits the power to the output connector 13 through the charging cable 12 to charge the device.

[0029] Furthermore, the cord reel 14 includes a cord reel 141, on which a first rotating shaft 143 is provided, and the cord reel 141 is rotatably connected to the charging cord storage box 10 via the first rotating shaft 143, and a reset coil spring 142 is provided between the cord reel 141 and the charging cord storage box 10; wherein, the charging cord 12 is wound around the cord reel 141, and when the charging cord 12 is pulled out by an external force, the cord reel 141 rotates forward, and the reset coil spring 142 is used to provide an elastic reset force for the forward rotation of the cord reel 141; when the pulled out charging cord 12 is released from the external force restriction, the reset coil spring 142 drives the cord reel 141 to rotate in the reverse direction, so that the charging cord 12 is wound around the cord reel 141. When the user needs to use the charging cable 12, by holding one end of the charging cable 12 and pulling it out, as the charging cable 12 is pulled out, the winding turntable 141 rotates forwardly, and the reset coil spring 142 is stretched and stores elastic potential energy. When the user has finished using the charging cable 12 and releases the charging cable 12, the reset coil spring 142 releases the stored potential energy, driving the winding turntable 141 to rotate in the opposite direction. As the turntable rotates, the charging cable 12 is gradually wound back on the winding turntable 141 until it is completely stored in the charging cable storage box 10. The elastic reset force of the reset coil spring 142 realizes the automatic storage function of the charging cable 12, reducing the burden of the user to manually organize and store the charging cable 12. Optionally, the design of the winding turntable 141 can be adopted in a variety of ways, for example, it can be made of plastic or metal materials to ensure that it has sufficient strength and durability. The reset coil spring 142 can select different elastic materials, such as steel wire or alloy materials, to provide appropriate elastic reset force. The first rotating shaft 143 can be connected to the charging cable storage box 10 through a bearing or a sliding sleeve to reduce friction and wear. The size and shape of the winding turntable 141 can be adjusted according to actual needs to adapt to charging cables 12 of different lengths and diameters.

[0030] In some embodiments, the single-pull retractable cable module also includes a cleaning mechanism 15, which is disposed between the cable reel 141 and the threading hole in the charging cable storage box 10, and the charging cable 12 is passed through the cleaning mechanism 15, and the cleaning mechanism 15 is used to clean the charging cable 12 passing therethrough. In this embodiment, the cleaning mechanism 15 can clean the charging cable 12 when it is pulled out or rolled in, prevent the accumulation of dust and dirt, and keep the charging cable 12 in a clean state, thereby extending the service life of the charging cable 12 and improving the user experience. By providing the cleaning mechanism 15, this embodiment can automatically clean the charging cable 12 when it is pulled out or rolled in, avoiding the accumulation of dust and dirt, keeping the charging cable 12 in a clean state, thereby extending the service life of the charging cable 12 and improving the user experience. Compared with the prior art, the technical solution provided by the present application has significant advantages in keeping the charging cable 12 clean, solving the problem in the prior art that the charging cable 12 is easily contaminated with dust and dirt during use, and avoiding the dust or other foreign matter attached to the surface of the charging cable 12 during use entering the cable reel 14 together with the charging cable 12 after use, causing the winding to get stuck.

[0031] Specifically, the cleaning mechanism 15 includes a fixed semi-ring plate 151 and a movable semi-ring plate 152, the opposite sides of the fixed semi-ring plate 151 and the movable semi-ring plate 152 are symmetrical semi-cylindrical surfaces, and cleaning members 153 are provided on the opposite sides of the fixed semi-ring plate 151 and the movable semi-ring plate 152, the charging cable 12 is located between the fixed semi-ring plate 151 and the movable semi-ring plate 152, the fixed semi-ring plate 151 is fixedly connected to the charging cable storage box 10, and the movable semi-ring plate 152 is rotatably connected to the charging cable storage box 10, and there is a point on the rotation trajectory of the movable semi-ring plate 152 that abuts against the fixed semi-ring plate 151. When the movable semi-ring plate 152 abuts against the fixed semi-ring plate 151, a circular hole 154 is formed between the movable semi-ring plate 152 and the fixed semi-ring plate 151, and the charging cable 12 passing through the circular hole 154 will be cleaned by the cleaning member 153. Before the movable semi-ring plate 152 is rotated, there is a certain gap between the fixed semi-ring plate 151 and the movable semi-ring plate 152, and the charging cable 12 can freely pass through this gap, thereby reducing the resistance that the user needs to overcome to pull out or reel in the charging cable 12. When the charging cable 12 is pulled out or reeled in, the movable semi-ring plate 152 is brought close to the fixed semi-ring plate 151. When the movable semi-ring plate 152 is rotated to abut against the fixed semi-ring plate 151, a tight circular hole 154 is formed between the two. At this time, when the charging cable 12 passes through the circular hole 154, its surface will be in close contact with the cleaning member 153, thereby being effectively cleaned. Preferably, the central axis of the circular hole 154 coincides with the central axis of the threading hole.

[0032] Furthermore, the aperture of the circular hole 154 is greater than or equal to the wire diameter of the charging cable 12, ensuring that the charging cable 12 can smoothly pass through the circular hole 154 of the cleaning mechanism 15, and the wire will not be damaged or unable to pass normally due to the small aperture. In this way, the problem of matching the diameter of the circular hole 154 of the cleaning mechanism 15 and the charging cable 12 can be effectively solved to ensure the integrity and cleanliness of the charging cable 12 during use. Furthermore, the edge of the circular hole 154 can be rounded to avoid damage to the surface of the wire when the charging cable 12 passes through. As a preferred embodiment, the aperture of the circular hole 154 can be slightly larger than the wire diameter of the charging cable 12 to provide a certain margin to ensure the flexibility and smoothness of the charging cable 12 when passing through.

[0033] In some embodiments, a knob is rotatably connected to the outside of the charging cable storage box 10, and a portion of the knob passes through the charging cable storage box 10 and is transmission-connected to the movable semi-ring plate 152. The rotation of the knob drives the movable semi-ring plate 152 to rotate closer to or away from the fixed semi-ring plate 151. It is understandable that the knob can be connected to the movable semi-ring plate 152 in a variety of ways, such as through gear transmission, chain transmission or direct mechanical connection. The outer part of the knob can be designed to be a shape that is convenient for the user to hold and operate, such as a round shape or a design with an anti-slip texture. The inner part of the knob can be connected to the movable semi-ring plate 152 through a shaft or other transmission components, thereby achieving precise control of the movable semi-ring plate 152.

[0034] In some embodiments, a second rotating shaft 155 is provided on the movable semi-ring plate 152, and the movable semi-ring plate 152 is rotatably connected to the charging cable storage box 10 through the second rotating shaft 155. A first worm gear 16 is connected to the first rotating shaft 143, and a second worm gear 162 is connected to the second rotating shaft 155. A worm 161 is provided between the first worm gear 16 and the second worm gear 162, and the worm 161 is positioned in the charging cable storage box 10 through a bearing. When the first rotating shaft 143 rotates, it drives the first worm gear 16 to rotate, the first worm gear 16 drives the worm 161 to rotate, the worm 161 drives the second worm gear 162 to rotate, and the second worm gear 162 drives the second rotating shaft 155 to rotate. The second rotating shaft 155 drives the movable semi-ring plate 152 to rotate to approach or move away from the fixed semi-ring plate 151. When the user needs to pull out the charging cable 12, the user will manually pull the charging cable 12. This pulling force will drive the cable reel 141 to rotate forward. The forward rotation of the cable reel 141 is transmitted to the movable semi-ring plate 152 through the first rotating shaft 143, the first worm gear 16, the worm 161, the second worm gear 162, and the second rotating shaft 155, so that it rotates around the second rotating shaft 155 and opens, providing a larger space for the charging cable 12 to pass through. In this way, the force required by the user to pull out the charging cable 12 will be greatly reduced. When the user finishes using the charging cable 12 and wants to roll it into the storage box, the pulling force on the charging cable 12 will be released. At this time, the reset coil spring 142 will drive the winding turntable 141 to rotate in the opposite direction. The reverse rotation of the winding turntable 141 is then transmitted to the movable semi-ring plate 152 through the first rotating shaft 143, the first worm gear 16, the worm 161, the second worm gear 162, and the second rotating shaft 155, so that it closes and abuts against the fixed semi-ring plate 151 and tightly wraps the charging cable 12. In this process, the cleaning member 153 will clean the charging cable 12 to remove dirt and dust on the surface. Optionally, since the movable half-ring plate 152 requires a relatively small rotation stroke, the second rotating shaft 155 can be connected to the second worm gear 162 through a customized bearing. The characteristic of the customized bearing is that the torque threshold for relative rotation of its inner ring and outer ring can be designed. Thus, when the movable half-ring plate 152 moves on its rotation trajectory, the worm 161 transmits power to the second worm gear 162, and the second worm gear 162 transmits power to the second rotating shaft 155 and the movable half-ring plate 152. The inner and outer rings of the customized bearing are relatively positioned, and the second worm gear 162 smoothly drives the second rotating shaft 155 and The movable semi-ring plate 152 rotates; when the movable semi-ring plate 152 cannot continue to rotate after reaching the extreme position of the rotation trajectory, the worm 161 transmits power to the second worm gear 162, and the second worm gear 162 transmits power to the second rotating shaft 155 and the movable semi-ring plate 152, but the movable semi-ring plate 152 cannot rotate because it is in the extreme position, so that the torque between the second worm gear 162 and the second rotating shaft 155 exceeds the torque threshold, and the inner and outer rings of the customized bearing rotate relative to each other, and the second worm gear 162 drives the outer ring of the customized bearing to rotate, but does not drive the second rotating shaft 155 to rotate.

[0035] Specifically, the cleaning member 153 is connected to the fixed semi-ring plate 151 and the movable semi-ring plate 152 respectively through a spring, and the cleaning member 153 includes at least a sponge or a memory foam. It is understandable that the sponge or the memory foam as the material of the cleaning member 153 can clean the charging cable 12 during the process of pulling out or rolling it in. The use of the spring ensures that the cleaning member 153 can fit the charging cable 12 tightly, thereby effectively removing dust and dirt on the surface of the charging cable 12. Therefore, the charging cable 12 can automatically keep clean during use, solving the problem of easy dust accumulation of the charging cable 12, and improving the service life of the charging cable 12 and the user's experience.

[0036] The cleaning member 153 can be made of different materials and shapes. For example, the sponge can be an ordinary sponge or a memory foam with stronger adsorption capacity. The design of the spring can be a compression spring or a tension spring, which can be selected according to specific needs. The cleaning member 153 can be fixed to the spring by adhesive, snap or other mechanical connection methods to ensure its stability during use. Furthermore, the size and shape of the cleaning member 153 can be customized according to the diameter of the charging cable 12 to ensure the best cleaning effect. The elastic coefficient of the spring can also be adjusted to provide appropriate pressure to ensure that the cleaning member 153 can fit tightly against the charging cable 12. Compared with the prior art, the design of the present application is simple and easy to implement, and no additional operation is required to keep the charging cable 12 clean, thereby improving the user experience and the reliability of the charging cable 12.

[0037] Furthermore, the output connector 13 includes at least a Type-c interface or a Lightning interface or a Microusb interface. It is understandable that the present application can solve the compatibility problem of the output connector 13 by providing multiple types of output connectors 13, so that the single-pull retractable line module can be applicable to different types of devices, thereby improving its versatility and user convenience. Specifically, the output connectors 13 such as the Type-c interface, the Lightning interface or the Microusb interface can be used alone or in combination to meet the connection requirements of different devices. For example, the Type-c interface can provide high-speed data transmission and charging functions, the Lightning interface is suitable for Apple devices, and the Microusb interface is suitable for some old devices. By integrating these interfaces on the single-pull retractable line module, users can switch freely between different devices, avoiding the trouble of carrying multiple charging cables 12. As a preferred embodiment, the output connector 13 can adopt a three-in-one design of a Type-c interface, a Lightning interface, and a Microusb interface.

[0038] The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but they do not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A single-pull telescopic wire module for transmitting electric energy, characterized in that: include: A charging cable storage box, a circuit board assembly, a charging input assembly, a charging output assembly and a cable reel, wherein the circuit board assembly and the cable reel are both arranged in the charging cable storage box, and the charging cable storage box is provided with a threading hole; the charging output assembly includes a charging cable and an output connector, the charging cable is passed through the threading hole and wound around the cable reel, one end of the charging cable is electrically connected to the circuit board assembly, and the other end is electrically connected to the output connector, and the charging cable can be pulled out or wound in on the cable reel; The charging input component includes a receiving coil electrically connected to the circuit board component, the receiving coil is used to receive current, and the circuit board component is used to receive the current and transmit it to the charging line after processing.

2. A single-pull telescopic wire module for transmitting electric energy according to claim 1, characterized in that: The cord reel comprises a cord reel having a first rotating shaft disposed on the cord reel, the cord reel being rotatably connected to the charging cord storage box via the first rotating shaft, and a reset coil spring being disposed between the cord reel and the charging cord storage box; wherein, the charging cord is wound around the cord reel, and when the charging cord is pulled out by an external force, the cord reel rotates in the forward direction, and the reset coil spring is used to provide an elastic reset force for the forward rotation of the cord reel; when the pulled out charging cord is released from the external force restriction, the reset coil spring drives the cord reel to rotate in the reverse direction, so that the charging cord is wound around the cord reel.

3. A single-pull telescopic wire module for transmitting electric energy according to claim 2, characterized in that: It also includes a cleaning mechanism, which is arranged between the wire winding turntable and the wire threading hole in the charging wire storage box. The charging wire is passed through the cleaning mechanism, and the cleaning mechanism is used to clean the charging wire passing therethrough.

4. A single-pull telescopic wire module for transmitting electric energy according to claim 3, characterized in that: The cleaning mechanism includes a fixed semi-ring plate and a movable semi-ring plate, the opposite sides of the fixed semi-ring plate and the movable semi-ring plate are symmetrical semi-cylindrical surfaces, and cleaning parts are arranged on the opposite sides of the fixed semi-ring plate and the movable semi-ring plate, the charging cable is located between the fixed semi-ring plate and the movable semi-ring plate, the fixed semi-ring plate is fixedly connected to the charging cable storage box, the movable semi-ring plate is rotatably connected to the charging cable storage box, there is a point on the rotation trajectory of the movable semi-ring plate that abuts the fixed semi-ring plate, and when the movable semi-ring plate abuts the fixed semi-ring plate, a circular hole is enclosed between the movable semi-ring plate and the fixed semi-ring plate.

5. A single-pull telescopic wire module for transmitting electric energy according to claim 4, characterized in that: The diameter of the circular hole is greater than or equal to the wire diameter of the charging cable.

6. A single-pull telescopic wire module for transmitting electric energy according to claim 4, characterized in that: A knob is rotatably connected to the outside of the charging cable storage box, and a portion of the knob passes through the charging cable storage box and is transmission-connected to the movable semi-ring plate. Rotation of the knob drives the movable semi-ring plate to rotate closer to or away from the fixed semi-ring plate.

7. A single-pull telescopic wire module for transmitting electric energy according to claim 4, characterized in that: A second rotating shaft is provided on the movable semi-ring plate, and the movable semi-ring plate is rotatably connected to the charging cable storage box through the second rotating shaft, a first worm gear is connected to the first rotating shaft, and a second worm gear is connected to the second rotating shaft, a worm is provided between the first worm gear and the second worm gear, and the worm is positioned in the charging cable storage box through a bearing, when the first rotating shaft rotates, it drives the first worm gear to rotate, the first worm gear drives the worm to rotate, the worm drives the second worm gear to rotate, the second worm gear drives the second rotating shaft to rotate, and the second rotating shaft drives the movable semi-ring plate to rotate to approach or move away from the fixed semi-ring plate.

8. A single-pull telescopic wire module for transmitting electric energy according to claim 4, characterized in that: The cleaning member is respectively connected to the fixed semi-ring plate and the movable semi-ring plate through springs.

9. A single-pull telescopic wire module for transmitting electric energy according to claim 8, characterized in that: The cleaning element includes at least one of sponge and memory foam.

10. A single-pull telescopic wire module for transmitting electric energy according to claim 1, characterized in that: The output connector at least includes a Type-c interface, a Lightning interface, or a Microusb interface.

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