Telescopic magnetic wireless charging

Abstract

This utility model discloses a retractable magnetic wireless charger, comprising a housing, a support ring, a charging cable, a transmitting coil, a cable routing frame, and a cable outlet. The support ring is rotatably connected to the bottom of the housing, allowing it to rotate from 0° to 90° to act as a phone stand. The cable routing frame inside the housing incorporates a spring to automatically retract the charging cable. The transmitting coil is fixed in the middle of the cable routing frame and electrically connected to the charging cable to achieve wireless charging. This utility model enhances versatility through the support ring design, optimizes portability through the spring, and ensures efficient and stable wireless charging, making it suitable for various scenarios and significantly improving the user experience.

Description

Technical Field

[0001] This utility model relates to the technical field of charging equipment, and in particular to a retractable magnetic wireless charger. Background Technology

[0002] With the rapid development of wireless charging technology, wireless charging devices are increasingly widely used in daily life and work. Existing wireless charging devices typically generate an alternating magnetic field through a transmitting coil to provide power to wirelessly charging electronic devices. However, current wireless charging devices on the market still have many shortcomings in terms of ease of use and functionality. For example, many wireless charging devices only have a single charging function, failing to meet the diverse needs of users in specific scenarios, such as the need to use electronic devices while charging. Furthermore, traditional wireless charging devices usually require an external power cord, and these cords often lack effective storage design, resulting in messy cables and affecting the user experience. At the same time, existing devices have relatively fixed structural designs, lacking flexibility and failing to adapt to the needs of different usage scenarios; for example, the function of using the device as a stand has not been fully realized. Therefore, how to design a wireless charging device that combines convenience, multifunctionality, and efficiency has become an urgent technical problem to be solved. This utility model aims to overcome the shortcomings of the existing technology by providing a retractable magnetic wireless charger to improve user experience and expand the application scenarios of wireless charging devices. Utility Model Content

[0003] The purpose of this invention is to provide a retractable magnetic wireless charger to overcome the shortcomings of existing technologies.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A retractable magnetic wireless charger is proposed, aiming to improve overall performance through optimized structural design and functional integration. The technical solution specifically includes the rational layout and synergistic effect of components such as the housing, support ring, charging cable, transmitting coil, wiring frame, and cable outlet to achieve efficient and convenient wireless charging.

[0005] This utility model provides a retractable magnetic wireless charger, wherein: The housing, serving as the main structural component of the entire device, houses the internal components and provides support for external use. A support ring is rotatably connected to the bottom of the housing, allowing it to rotate outwards at a certain angle. Specifically, the support ring's design goes beyond a simple rotatable connection; its rotation angle is limited to between 0° and 90° to meet the practical needs of a phone stand. When the user rotates the support ring to the set angle, it functions as a phone stand, keeping the phone tilted during charging for easier screen viewing or other operations.

[0006] Furthermore, a cable routing frame is fixedly installed inside the housing, with a cable outlet on one side for guiding the charging cable in and out. The charging cable is located inside the housing and extends to the outside through the cable outlet to connect to an external power source for power. Specifically, a spring-loaded mechanism is installed inside the cable routing frame, with its end fixedly connected to the charging cable. When the user pulls out the charging cable, the spring deforms and stores elastic potential energy; when the user releases the charging cable, the spring returns to its original shape, automatically rewinding the charging cable back into the cable routing frame. This design avoids the messy charging cables found in traditional wireless charging devices, improving the portability and neatness of the device.

[0007] Specifically, the transmitting coil is fixedly installed in the center of the wiring frame and electrically connected to the charging cable. The transmitting coil is made of conductive coil windings, and its working principle is based on the law of electromagnetic induction, generating an alternating magnetic field to charge wirelessly charging electronic devices. A certain gap, 2mm to 5mm wide, is reserved between the transmitting coil and the inner wall of the wiring frame to allow the charging cable to move freely within the frame without interference. This design ensures that the transmitting coil is not affected by the movement of the charging cable during operation, thereby improving the stability and efficiency of wireless charging.

[0008] Furthermore, the support ring's rotational connection employs a hinge structure, with a damping device at the hinge's axis. This damping device restricts the support ring's free rotation through friction. This design ensures the support ring remains stable when rotated to any angle, preventing angular deviation due to external forces. Additionally, the support ring's surface features an anti-slip texture, formed using a molding process, to enhance friction between the support ring and the tabletop, preventing the device from sliding during use.

[0009] In particular, the casing's design balances portability and practicality. The overall thickness of the casing is controlled between 10mm and 15mm to meet daily carrying needs. The casing is made of high-strength ABS plastic, ensuring structural strength while reducing overall weight. A magnetic attraction device, composed of multiple sets of permanent magnets, is located on the top of the casing to attract wirelessly charging-enabled electronic devices. The magnetic strength of the device has been precisely calculated to ensure a secure attachment without interfering with the internal components of the electronic devices.

[0010] Furthermore, the charging cable's length has been optimized, with a maximum pull-out length of 50cm to meet usage needs in various scenarios. The outer layer of the charging cable is wrapped with flexible silicone material, which has excellent wear resistance and tensile strength, effectively extending the cable's lifespan. The charging cable's end is equipped with a standard USB connector, and the metal contacts of the USB connector are gold-plated to improve conductivity and prevent oxidation.

[0011] Specifically, the internal structure of the cable tray is precisely designed, with multiple sets of guide grooves on its inner sidewalls. The width of these guide grooves is slightly larger than the diameter of the charging cable, guiding its movement. This guide groove design prevents the charging cable from tangling or getting stuck during winding or pulling, thus improving the smoothness of use. Furthermore, the bottom of the cable tray is equipped with heat dissipation holes, with a diameter of 1mm to 2mm, to dissipate heat generated during charging, ensuring long-term stable operation of the device.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The support ring design allows the device to function as a wireless charging stand while also serving as a phone holder, significantly improving user convenience. Furthermore, the automatic cable rewinding function, achieved through a spring within the cable management frame, avoids the tangled cable problems common in traditional wireless charging devices, enhancing portability. In particular, the rational layout of the transmitting coil and charging cable ensures efficient and stable wireless charging, while the compact and well-designed casing makes it easy to carry and store, suitable for various scenarios.

[0013] The technical solution of this utility model achieves comprehensive optimization of the wireless charging device in terms of portability, multifunctionality and user experience through the close cooperation between various components, and has broad market application prospects. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model, ignoring the top cover.

[0015] Attached image annotations: 1. Support ring; 2. Charging cable; 3. Housing; 4. Transmitting coil; 5. Wiring frame; 6. Cable outlet. Detailed Implementation

[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0017] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. When the number of elements is referred to as "multiple," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings: like Figure 1-2 As shown, this embodiment provides a retractable magnetic wireless charger, the specific implementation of which is as follows. The housing 3, as the core load-bearing component of the entire device, is injection molded from high-strength ABS plastic, with a thickness controlled between 10mm and 15mm to meet the requirements of portability and structural strength. The bottom of the housing 3 is connected to a support ring 1 via a hinge structure. This hinge structure incorporates a damping device, consisting of a friction plate and a spring assembly, ensuring that the support ring 1 can rotate within a range of 0° to 90° and stably remain at any angle. The outer surface of the support ring 1 is provided with an anti-slip texture, with a texture depth of 0.5mm, formed through mold processing, to enhance friction with the desktop and prevent the device from sliding during use.

[0020] A cable routing frame 5 is fixedly installed inside the housing 3. A cable outlet 6 with a diameter of 8mm is provided on one side of the cable routing frame 5 to facilitate the insertion and exit of the charging cable 2. One end of the charging cable 2 connects to an external power source, and the other end is electrically connected to the internal circuitry via a transmitting coil 4. The outer layer of the charging cable 2 is wrapped with a 1mm thick flexible silicone material, which has good wear resistance and tensile strength, effectively extending its service life. The maximum extended length of the charging cable 2 is set to 50cm to meet the needs of different usage scenarios. A standard USB interface is provided at the end of the charging cable 2, and the metal contacts are gold-plated with a thickness of 0.1mm to improve conductivity and prevent oxidation.

[0021] A transmitting coil 4 is fixedly installed in the center of the wiring frame 5. The transmitting coil 4 is made of multi-turn conductive coil and generates an alternating magnetic field through electromagnetic induction to charge wirelessly charged electronic devices. A gap of 2mm to 5mm is reserved between the transmitting coil 4 and the inner wall of the wiring frame 5 to ensure that the charging cable 2 will not interfere with the operation of the transmitting coil 4 during movement. The inner wall of the wiring frame 5 is provided with multiple sets of guide grooves. The width of the guide grooves is slightly larger than the diameter of the charging cable 2 to guide the movement path of the charging cable 2 and avoid tangling or jamming.

[0022] The cable management frame 5 is equipped with a spring-loaded mechanism. One end of the spring is fixed to the inner wall of the frame, and the other end is connected to the charging cable 2. When the user pulls out the charging cable 2, the spring deforms and stores elastic potential energy; when the user releases the cable 2, the spring returns to its original shape, causing the cable 2 to automatically rewind back into the cable management frame 5. This design not only improves the portability of the device but also solves the problem of messy charging cables in traditional wireless charging devices. The bottom of the cable management frame 5 has ventilation holes with a diameter of 1mm to 2mm to dissipate heat generated during charging, ensuring long-term stable operation of the device.

[0023] The top of the housing 3 features a magnetic attraction device composed of multiple sets of permanent magnets. The magnetic strength of each set of permanent magnets has been precisely calculated to ensure that wirelessly charging-enabled electronic devices can be firmly attached to the housing 3 without interfering with internal components. The magnetic attraction device is designed with central symmetry to ensure even distribution of the attraction force. The overall shape of the housing 3 is ergonomically optimized, with rounded corners for improved grip comfort.

[0024] In practical applications, after the user flips the support ring 1 to the desired angle, the phone can be placed on the housing 3 for quick positioning via a magnetic attraction device. At this time, the transmitting coil 4 generates an alternating magnetic field to wirelessly charge the phone. If an external power source is needed, the user can pull out the charging cable 2 through the cable outlet 6. After connecting, releasing the charging cable 2 causes the spring to automatically rewind it back into the cable tray 5. The design of the support ring 1 allows the device to function as a phone stand during charging, facilitating video viewing or screen operation.

[0025] Furthermore, the guide groove design inside the cable tray 5 ensures that the charging cable 2 remains smooth during pulling out or rewinding, preventing damage caused by jamming. The heat dissipation holes further enhance the device's heat dissipation performance, effectively reducing internal temperature, especially during prolonged charging, ensuring the normal operation of the transmitting coil 4 and the charging cable 2. The material selection and thickness control of the housing 3 balance lightweight design with durability, making it suitable for various scenarios such as home, office, and travel.

[0026] Through the synergistic effect of the above structural design and technical solutions, this utility model achieves comprehensive optimization of the wireless charging device in terms of portability, multifunctionality, and user experience. The flipping function of the support ring 1, the automatic winding mechanism of the spring, and the precise adsorption capability of the magnetic device together constitute a highly efficient and stable wireless charging system. This design significantly improves user convenience while ensuring the compactness and practicality of the device, possessing broad market application prospects.

[0027] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. For those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A retractable magnetic wireless charger, characterized in that: The device includes a housing (3), a support ring (1), a charging cable (2), a transmitting coil (4), a wiring frame (5), and a cable outlet (6). The support ring (1) is mounted on the bottom side of the housing (3) by a rotatable connection. The wiring frame (5) is fixedly mounted inside the housing (3). A cable outlet (6) is provided on one side of the wiring frame (5). The charging cable (2) is mounted inside the housing (3) and extends to the outside through the cable outlet (6). The transmitting coil (4) is fixedly mounted in the middle of the wiring frame (5) and electrically connected to the charging cable (2).

2. The retractable magnetic wireless charger as described in claim 1, characterized in that: The rotation angle of the support ring (1) ranges from 0° to 90°. The rotation connection of the support ring (1) adopts a hinge structure, and a damping device is provided at the axis of the hinge structure.

3. The retractable magnetic wireless charger as described in claim 2, characterized in that: The surface of the support ring (1) is provided with anti-slip texture, the depth of which is 0.5mm, and the texture is formed by mold forming process.

4. The retractable magnetic wireless charger as described in claim 1, characterized in that: The wiring frame (5) is equipped with a spring, and the end of the spring is fixedly connected to the charging cable (2). The maximum pull-out length of the charging cable (2) is 50cm.

5. The retractable magnetic wireless charger as described in claim 4, characterized in that: The inner wall of the wiring frame (5) is provided with multiple sets of guide grooves. The width of the guide grooves is slightly larger than the diameter of the charging cable (2). The bottom of the wiring frame (5) is provided with heat dissipation holes with a diameter of 1mm to 2mm.

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