Charger

By incorporating a magnetic component into the charger, the problems of high cost and short lifespan of the spring contact design in existing foldable chargers are solved, thereby improving stability and cost-effectiveness.

CN224191408UActive Publication Date: 2026-05-01深圳市晨浅拓普科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
深圳市晨浅拓普科技有限公司
Filing Date
2025-04-24
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing foldable chargers suffer from high costs due to spring contact design, complex assembly, and short lifespan.

Method used

The design replaces the spring contact with a magnetic component. By setting multiple magnetic components on the plug and charger body, the plug can be stably attached, simplifying the structure and reducing production costs.

Benefits of technology

It improves the lifespan and stability of the charger, reduces production costs, avoids fatigue damage to the contact springs, and provides a convenient user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a charger, which is used for transforming voltage to charge an electronic product and comprises a charger body, a plug and a magnetic attraction assembly. The charger body is provided with a connecting seat. The plug is rotatably arranged on the connecting seat and can be folded and unfolded around the connecting seat relative to the charger body. The magnetic attraction assemblies are arranged on the plug and the charger body respectively, and when the plug is folded and unfolded relative to the charger body, the magnetic attraction assemblies are configured to attract the plug to the charger. The magnetic attraction assemblies are arranged on the charger body and the plug respectively, and when the plug is folded and unfolded relative to the charger body, the plug can be stably attracted to the charger body through the magnetic attraction assemblies. No elastic sheet is needed to maintain the plug in an unfolded or folded state. And through a magnetic adsorption mode, fatigue damage of the elastic sheet after long-term use is avoided, and the service life of the charger is prolonged.
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Description

charger Technical Field

[0001] This application relates to the field of charging equipment technology, and specifically to a charger. Background Technology

[0002] Because portable electronic devices have very limited battery life, and chargers are easy to carry and move, they have become an essential electronic accessory for people at home or when traveling. Existing chargers are relatively large and have protruding plugs, which take up a lot of storage space. The few foldable chargers that can be stored usually use spring clips at the folding point to achieve the unfolding and folding effect.

[0003] However, foldable chargers still have shortcomings. For example, the spring design requires high precision and in-mold injection molding for assembly, which is very costly. Adjusting the feel of the spring force takes a long time, and the lifespan of the spring decreases after repeated use. Summary of the Invention

[0004] To address the shortcomings of the existing technology, it is necessary to provide a charger that can solve at least one of the above technical problems.

[0005] This application provides a charger, including a charger body, a plug, and a magnetic attachment assembly. The charger body has a connector. The plug is rotatably disposed on the connector and configured to rotate about the connector so that the plug can be folded and unfolded relative to the charger body. The magnetic attachment assembly includes multiple magnetic elements, which are respectively disposed on the plug and the charger body. When the plug is folded and unfolded relative to the charger body, the magnetic attachment assembly is configured to attract the plug to the charger body.

[0006] This application integrates magnetic components on both the charger body and the plug. When the plug is folded or unfolded relative to the charger body, it is stably attached to the charger body via the magnetic components. This eliminates the need for spring clips to maintain the plug in its unfolded or folded state. Replacing traditional spring clips with magnetic components simplifies the structure and avoids the high-cost assembly method of in-mold injection molding, thereby reducing production costs. The magnetic attachment method also prevents fatigue damage from prolonged use of spring clips, increasing the charger's lifespan.

[0007] In some embodiments of this application, the magnetic suction assembly includes a first magnetic suction member, a second magnetic suction member, a third magnetic suction member, and a fourth magnetic suction member. The first and second magnetic suction members are disposed on the plug, and the third and fourth magnetic suction members are disposed on the charger body. The first and third magnetic suction members are configured to attract each other when the plug is folded relative to the charger body, and the second and fourth magnetic suction members are configured to attract each other when the plug is unfolded relative to the charger body.

[0008] In some embodiments of this application, the plug includes a first housing and a mounting member. A first placement slot is provided within the first housing, and a first magnetic member is disposed within the first placement slot. When the plug is folded relative to the charger body, the first placement slot faces the charger body. The mounting member is disposed within the first housing, and a second placement slot is provided on the mounting member. A second magnetic member is disposed within the second placement slot. When the plug is unfolded relative to the charger body, the second placement slot faces the charger body.

[0009] In some embodiments of this application, a first cover plate is also provided on the second placement slot, and the first cover plate is configured to fix the second magnetic member in the second placement slot.

[0010] In some embodiments of this application, the first cover plate is a polyethylene terephthalate sheet.

[0011] In some embodiments of this application, the mounting component is provided with a connecting groove, the connecting seat is at least partially disposed in the connecting groove, the connecting seat is provided with a rotating shaft, the connecting groove is provided with a connecting hole, and the rotating shaft is rotatably connected to the connecting hole.

[0012] In some embodiments of this application, the plug further includes pins that are fixedly connected to the mounting component.

[0013] In some embodiments of this application, the charger body includes a second housing, a second cover, and an output interface. The second cover is fastened to the second housing and includes a first surface facing the plug and a second surface facing away from the first surface. The second cover has a third placement slot and a fourth placement slot respectively provided on the second surface and the first surface. A third magnetic member is disposed in the third placement slot, and a fourth magnetic member is disposed in the fourth placement slot. The output interface is disposed on the side of the second housing facing away from the second cover and is configured to connect to an electronic device.

[0014] In some embodiments of this application, a third cover plate is provided on the third placement slot, and the third cover plate is configured to fix the third magnetic member in the third placement slot.

[0015] In some embodiments of this application, a control circuit board is also provided inside the second housing, and the plug is electrically connected to the control circuit board. Attached Figure Description

[0016] Figure 1 is a schematic diagram of a charger in an unfolded state according to an embodiment of this application.

[0017] Figure 2 is a schematic diagram of the charger shown in Figure 1 in a folded state.

[0018] Figure 3 is an exploded view of the charger shown in Figure 2.

[0019] Figure 4 is another exploded view of the charger shown in Figure 2.

[0020] Figure 5 is an exploded view of the plug of the charger shown in Figure 1.

[0021] Explanation of key component symbols:

[0022] Charger body 100, plug 200, magnetic assembly 300, connector 101, first magnetic component 301, second magnetic component 302, third magnetic component 303, fourth magnetic component 304, first housing 210, first placement slot 211, mounting component 220, second placement slot 221, first cover plate 222, connecting slot 223, rotating shaft 1011, connecting hole 2231, pin 230, second housing 110, second cover plate 120, output interface 130, first surface 121, second surface 122, third placement slot 111, fourth placement slot 112, third cover plate 1121, control circuit board 400.

[0023] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have a component that is centrally located. When a component is considered to be "located" on another component, it can be directly located on the other component or may also have a component that is centrally located.

[0026] 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.

[0027] Referring to Figures 1 to 4, this application embodiment provides a charger for transforming voltage to charge electronic products. The charger includes a charger body 100, a plug 200, and a magnetic attraction assembly 300. The charger body 100 is provided with a connector 101. The plug 200 is rotatably disposed on the connector 101, and the plug 200 can rotate relative to the charger body 100 around the connector 101, thereby folding and unfolding relative to the charger body 100. The magnetic attraction assembly 300 is disposed on both the plug 200 and the charger body 100. Referring to Figures 1 and 2 together, when the plug 200 is folded and unfolded relative to the charger body 100, the magnetic attraction assembly 300 is configured to attract the plug 200 to the charger body 100.

[0028] This application incorporates magnetic components 300 on both the charger body 100 and the plug 200. When the plug 200 is folded or unfolded relative to the charger body 100, it can be stably attached to the charger body 100 via the magnetic components 300. This application eliminates the need for spring clips to maintain the plug 200 in its unfolded or folded state. Replacing the traditional spring clip design with magnetic components 300 simplifies the structure, avoids the high-cost assembly method of in-mold injection molding, and thus reduces production costs. Furthermore, the magnetic attachment method prevents fatigue damage to spring clips after long-term use, thereby extending the charger's lifespan.

[0029] Referring to Figures 4 and 5, in one embodiment of this application, the magnetic suction assembly 300 includes a first magnetic suction member 301, a second magnetic suction member 302, a third magnetic suction member 303, and a fourth magnetic suction member 304. The first magnetic suction member 301 and the second magnetic suction member 302 are disposed on the plug 200, and the third magnetic suction member 303 and the fourth magnetic suction member 304 are disposed on the charger body 100. The first magnetic suction member 301 and the third magnetic suction member 303 are configured to attract each other when the plug 200 is folded relative to the charger body 100, and the second magnetic suction member 302 and the fourth magnetic suction member 304 are configured to attract each other when the plug 200 is unfolded relative to the charger body 100. By providing four magnetic suction members, the plug 200 is attracted and fixed in both folded and unfolded states on the plug 200 and the charger body 100, respectively. When the plug 200 is folded, the first magnetic element 301 and the third magnetic element 303 attract each other, stably attaching the plug 200 to the charger body 100 and preventing the plug 200 from becoming loose or shifting. When the plug 200 is unfolded, the second magnetic element 302 and the fourth magnetic element 304 attract each other, similarly preventing the plug 200 from becoming loose or shifting. Therefore, not only is the stability of the plug 200's folding and unfolding improved, but the reliability of the charger body 100 in different states is also ensured.

[0030] Referring to Figure 5, in one embodiment of this application, the plug 200 includes a first housing 210 and a mounting member 220. A first placement groove 211 is provided within the first housing 210, and a first magnetic member 301 is disposed within the first placement groove 211. When the plug 200 is folded relative to the charger body 100, the first placement groove 211 faces the charger body 100. The mounting member 220 is disposed within the first housing 210, and a second placement groove 221 is provided on the mounting member 220. A second magnetic member 302 is disposed within the second placement groove 221. When the plug 200 is unfolded relative to the charger body 100, the second placement groove 221 faces the charger body 100. Through structural optimization of the plug 200, stability and reliability of the plug 200 in both folded and unfolded states are achieved. When the plug 200 is folded, the first placement groove 211 faces the charger body 100, ensuring stability in the folded state. Similarly, when the plug 200 is unfolded, the second placement groove 221 faces the charger body 100, ensuring stability in the unfolded state as well. Meanwhile, the first magnetic attractor 301 and the second magnetic attractor 302 are respectively disposed in the first placement groove 211 and the second placement groove 221, further enhancing the accuracy of the adsorption function. In addition, the combined design of the first housing 210 and the mounting member 220 simplifies the structure of the charger body 100, reduces the manufacturing difficulty, and also improves the durability and service life of the plug 200.

[0031] Referring to Figure 5, in one embodiment of this application, a first cover plate 222 is further provided on the second placement groove 221. The first cover plate 222 is configured to fix the second magnetic component 302 within the second placement groove 221. By providing the first cover plate 222 on the second placement groove 221, the position of the second magnetic component 302 is further fixed, ensuring the stability and reliability of the magnetic component during use. The design of the first cover plate 222 avoids the second magnetic component 302 from shifting or loosening due to external force or vibration, thereby improving the lifespan of the magnetic component 300's adsorption function. In addition, the first cover plate 222 simplifies the assembly process, reduces production costs, and provides users with a more convenient and stable user experience. On the other hand, it can also prevent debris generated by the second magnetic component 302 from falling off, which is beneficial to the overall uniformity of the charger's appearance. Optionally, the first cover plate 222 is a polyethylene terephthalate (PET) sheet. The second magnetic component 302 is fixed to the second placement groove 221 with adhesive.

[0032] Referring to Figure 3, in one embodiment of this application, the mounting member 220 is provided with a connecting groove 223, and the connecting seat 101 is at least partially disposed within the connecting groove 223. The connecting groove 223 is rotatably connected to the connecting seat 101, and a rotating shaft 1011 passes through the connecting seat 101. A connecting hole 2231 is provided on the connecting groove 223 corresponding to the rotating shaft 1011, and the rotating shaft 1011 is rotatably connected to the connecting hole 2231. Through the rotatable connection design between the mounting member 220 and the connecting seat 101, the rotatable connection function between the plug 200 and the charger body 100 is realized. The rotatable connection between the connecting groove 223 and the connecting seat 101, combined with the design of the rotating shaft 1011 and the connecting hole 2231, ensures the flexibility and stability of the plug 200 during folding and unfolding. At the same time, the rotatable connection between the rotating shaft 1011 and the connecting hole 2231 avoids the wear problems that may be caused by vibration or repeated operation in traditional designs, thereby extending the service life of the charger. In addition, this design improves the rotational accuracy of the plug 200, ensuring accurate alignment of the plug 200 when folded and unfolded.

[0033] Referring to Figure 5, in one embodiment of this application, the plug 200 further includes pins 230, which are fixedly connected to the mounting member 220. Optionally, pins 230 can be any of Australian standard pins, European standard pins, and British standard pins.

[0034] Referring to Figures 3 and 4, in one embodiment of this application, the charger body 100 includes a second housing 110, a second cover plate 120, and an output interface 130. The second cover plate 120 is fastened to the second housing 110. The second cover plate 120 includes a first surface 121 facing the plug 200 and a second surface 122 facing away from the first surface 121. The second cover plate 120 has a third placement groove 111 and a fourth placement groove 112 respectively provided on the second surface 122 and the first surface 121. A third magnetic member 303 is disposed in the third placement groove 111, and a fourth magnetic member 304 is disposed in the fourth placement groove 112. The output interface 130 is disposed on the side of the second housing 110 facing away from the second cover plate 120, and the output interface 130 is configured to connect to an electronic device. Through the combined design of the second housing 110, the second cover plate 120, and the output interface 130, the efficient operation function of the charger body 100 is achieved. The third placement slot 111 and the fourth placement slot 112 on the second cover plate 120 are used to fix the third magnetic component 303 and the fourth magnetic component 304, respectively, ensuring the accuracy and stability of the magnetic attraction function. Meanwhile, the output interface 130 is located on the side of the second housing 110 opposite to the second cover plate 120, avoiding interference between the plug 200 and the output interface 130, ensuring the convenience and reliability of the charger. Furthermore, the snap-fit ​​connection design between the second cover plate 120 and the second housing 110 simplifies the assembly process, reduces production costs, and also improves the overall durability of the charger.

[0035] Referring to Figures 3 and 4, in one embodiment of this application, a third cover plate 1121 is provided on the fourth placement slot 112. The third cover plate 1121 is configured to fix the fourth magnetic component 304 within the fourth placement slot 112. By providing the third cover plate 1121 on the fourth placement slot 112, the position of the third magnetic component 303 is further fixed, ensuring the stability and reliability of the magnetic adsorption function. The design of the third cover plate 1121 avoids the fourth magnetic component 304 from shifting or loosening due to external force or vibration, thereby improving the durability of the magnetic adsorption function. In addition, the provision of the third cover plate 1121 simplifies the assembly process, reduces production costs, and also provides users with a more convenient and stable user experience. On the other hand, it can also prevent debris generated by the fourth magnetic component 304 from falling off, which is beneficial to the overall uniformity of the charger's appearance. Preferably, the third cover plate 1121 is a PET sheet. The third magnetic component 303 is fixed within the fourth placement slot 112 by adhesive.

[0036] Please refer to Figure 4. In one embodiment of this application, the output interface 130 includes a plurality of USBA interfaces and / or a plurality of USBC interfaces.

[0037] Please refer to Figure 3. In one embodiment of this application, a control circuit board 400 is also provided inside the second housing 110, and the plug 200 is electrically connected to the control circuit board 400.

[0038] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and substance of the technical solutions of this application.

Claims

1. A charger, characterized in that, include: The charger body includes a connector; a plug rotatably mounted on the connector and configured to rotate about the connector to fold and unfold relative to the charger body; and a magnetic assembly including multiple magnetic elements respectively disposed on the plug and the charger body, wherein the magnetic assembly is configured to attract the plug to the charger body when the plug is folded and unfolded relative to the charger body.

2. The charger according to claim 1, characterized in that, The magnetic attraction assembly includes a first magnetic attractor, a second magnetic attractor, a third magnetic attractor, and a fourth magnetic attractor. The first and second magnetic attractors are disposed on the plug, and the third and fourth magnetic attractors are disposed on the charger body. The first and third magnetic attractors are configured to attract each other when the plug is folded relative to the charger body, and the second and fourth magnetic attractors are configured to attract each other when the plug is unfolded relative to the charger body.

3. The charger according to claim 2, characterized in that, The plug includes: a first housing, in which a first placement groove is provided, and a first magnetic suction member is disposed in the first placement groove, wherein when the plug is folded relative to the charger body, the first placement groove faces the charger body; and a mounting member, in which the mounting member is disposed within the first housing, and a second placement groove is provided on the mounting member, wherein the second magnetic suction member is disposed in the second placement groove, wherein when the plug is unfolded relative to the charger body, the second placement groove faces the charger body.

4. The charger according to claim 3, characterized in that, The second placement slot is also provided with a first cover plate, which is configured to fix the second magnetic member in the second placement slot.

5. The charger according to claim 4, characterized in that, The first cover plate is made of polyethylene terephthalate sheet.

6. The charger according to claim 3, characterized in that, The mounting component is provided with a connecting groove, and the connecting seat is at least partially disposed in the connecting groove. A rotating shaft passes through the connecting seat, and a connecting hole is provided in the connecting groove. The rotating shaft is rotatably connected to the connecting hole.

7. The charger according to claim 3, characterized in that, The plug also includes pins, which are fixedly connected to the mounting component.

8. The charger according to claim 2, characterized in that, The charger body includes: a second housing; a second cover plate, which is fastened to the second housing, the second cover plate including a first surface facing the plug and a second surface facing away from the first surface, the second cover plate having a third placement groove and a fourth placement groove respectively on the second surface and the first surface, the third magnetic member being disposed in the third placement groove, the fourth magnetic member being disposed in the fourth placement groove; and an output interface, the output interface being disposed on the side of the second housing facing away from the second cover plate, the output interface being configured to connect to an electronic device.

9. The charger according to claim 8, characterized in that, A third cover plate is provided on the third placement slot, and the third cover plate is configured to fix the third magnetic member in the third placement slot.

10. The charger according to claim 8, characterized in that, The second housing also contains a control circuit board, and the plug is electrically connected to the control circuit board.