A spring sheet type foldable plug-in charging device
Patent Information
- Application Number
- CN202522249511.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-24
AI Technical Summary
然而这种设计存在以下问题:为实现插脚旋转,转轴处必须预留活动空间,插脚与壳体间形成了物理间隙
[0009]Compared with the prior art, the advantages of this utility model are as follows: This is a spring-loaded European standard foldable plug charging device with foldable plugs, small storage volume, and easy to carry and transport; the dustproof sheet and dustproof cover, as the first and second seals, can effectively prevent external impurities and dust from entering the charging device through the charging slot; the plug assembly adopts a double shell structure with a hidden rotating shaft. When in use, the groove covers the entire rotating seat, making the overall design more concise and beautiful, and the spring-loaded sheet ensures that the plug assembly remains relatively perpendicular to the shell; when stored, the magnets attract each other, preventing the plug assembly from shaking during storage.
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Figure CN224759665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging devices, specifically a spring-loaded, European-standard foldable plug charging device. Background Technology
[0002] European standard plug chargers are typically bulky and inconvenient to store due to their cylindrical prongs and thick insulating shells. To address this, designs with foldable prongs have been introduced, using an internal hinge to fold the prongs, making the charger flat and compact, greatly improving portability. However, this design has the following problems: to allow the prongs to rotate, space must be left at the hinge, creating a physical gap between the prongs and the shell. This gap becomes a channel for external impurities such as dust and hair to enter the interior. Over time, these impurities accumulate on the circuit board, affecting heat dissipation and potentially causing short circuits in humid environments. Ultimately, this can corrode components, leading to performance degradation or a shortened lifespan. Utility Model Content
[0003] In view of the defects of existing charging devices with European standard plugs, the technical problem to be solved by this utility model is to provide a spring-loaded, foldable European standard plug charging device that is easy to carry and transport, and has a compact and beautiful structure.
[0004] To achieve the above objectives, according to one aspect of the present invention, the present invention is implemented through the following technical measures: a spring-loaded European standard foldable plug charging device, comprising a housing and a plug assembly, wherein a circuit module is provided inside the housing, a rotating seat is provided on one side of the housing, and a spring-loaded seat is provided on the other side, a power receiving groove is provided on the rotating seat, a spring is provided on the spring-loaded seat, and a dustproof sheet is also provided on one side of the spring-loaded seat, the dustproof sheet covering the power receiving groove, the plug assembly is hinged to the rotating seat, and the plug assembly is electrically connected to the internal circuit module through the spring.
[0005] Furthermore, a dust cover is provided on one side of the dustproof sheet, and the dust cover covers the entire spring holder.
[0006] Furthermore, one end of the spring is bent into a folded edge, and the other end is provided with a wiring hole. The spring is electrically connected to the internal circuit module of the charging device through the wiring hole.
[0007] Furthermore, the pin assembly includes a base outer shell and a base inner shell. The base inner shell has a groove on one side corresponding to the rotating seat. The inner wall of the groove has a power connection post groove. A power connection post is provided in the power connection post groove. One end of the power connection post is connected to the pin, and the other end is led out from the power connection post groove.
[0008] Furthermore, magnets are provided between the inner shell and the outer shell of the base, and on the spring plate seat.
[0009] Compared with the prior art, the advantages of this utility model are as follows: This is a spring-loaded European standard foldable plug charging device with foldable plugs, small storage volume, and easy to carry and transport; the dustproof sheet and dustproof cover, as the first and second seals, can effectively prevent external impurities and dust from entering the charging device through the charging slot; the plug assembly adopts a double shell structure with a hidden rotating shaft. When in use, the groove covers the entire rotating seat, making the overall design more concise and beautiful, and the spring-loaded sheet ensures that the plug assembly remains relatively perpendicular to the shell; when stored, the magnets attract each other, preventing the plug assembly from shaking during storage. Attached Figure Description
[0010] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is an exploded view of a spring-loaded, European-standard foldable plug charging device according to the present invention. Figure 2 This is a diagram showing the stored state of the spring-loaded European standard foldable plug charging device described in this utility model. Figure 3 This is a schematic diagram of the structure of the spring sheet described in this utility model.
[0011] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Pin assembly; 3. Rotating base; 4. Spring holder; 5. Electrical connection slot; 6. Spring; 7. Magnet; 8. Base outer shell; 9. Base inner shell; 10. Groove; 11. Electrical connection post slot; 12. Electrical connection post; 13. Pin; 14. Folded edge; 15. Wiring hole; 16. Dustproof sheet; 17. Dustproof cover. Detailed Implementation
[0012] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.
[0013] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0014] Please refer to Figure 1-3This embodiment provides a spring-loaded, European-standard foldable plug charging device, including a housing 1 and a plug assembly 2. The housing 1 contains a circuit module, a rotating base 3 on its outer side, and a spring-loaded base 4 opposite to the rotating base 3 on its inner side. The rotating base 3 has a contact groove 5, and the spring-loaded base 4 has a spring 6 and a magnet 7. The plug assembly 2 is hinged to the rotating base 3. The plug assembly 2 includes a base outer shell 8 and a base inner shell 9. One side of the base inner shell 9 has a groove 10 corresponding to the rotating base 3. The inner wall of the groove 10 has a contact post groove 11, and a contact post 12 is provided within the contact post groove 11. One end of the contact post 12 is connected to a plug 13. One end leads out from the charging slot, and a magnet 7 is provided between the inner shell 9 and the outer shell 8 of the base. One end of the spring piece 6 is bent into a folded edge 14, and the other end is provided with a wiring hole 15. The spring piece 6 is electrically connected to the internal circuit of the charging device through the wiring hole 15. When the spring piece 6 is in its natural state, the folded edge 14 of the spring piece 6 is exposed from the shell 1 through the charging slot 5. The dustproof sheet 16 covers the spring piece seat 4 and covers the charging slot 5 to form a first seal. The dustproof cover 17 covers the spring piece seat 4 as a whole, which fixes the spring piece 6 and forms a second seal. The double seal can effectively prevent external impurities and dust from entering the charging device through the charging slot 5.
[0015] This embodiment provides a spring-loaded, European-standard foldable plug charging device. In use, the plug assembly 2 is flipped so that it is perpendicular to the housing 1. The groove 10 of the inner shell 9 of the base is fitted onto the rotating seat 3 and completely covers it. The power contact post 12 passes through the power contact groove 5 and abuts against the folded edge 14 of the spring 6. The spring 6 is in a compressed state. The plug 13, the power contact post 12, and the spring 6 act as power connection conductors to conduct power. At the same time, the reverse force of the bent spring 6 also provides vertical support for the plug assembly 2, keeping it perpendicular to the housing 1.
[0016] This embodiment provides a spring-loaded, European-standard foldable plug charging device. When stored, the plug assembly 2 is flipped to make it parallel to the housing 1. The magnet 7 inside the plug assembly 2 and the magnet 7 inside the housing 1 attract each other, preventing the plug assembly 2 from shaking when stored.
[0017] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various changes and modifications can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A spring-loaded, European-standard foldable plug charging device, characterized in that: The device includes a housing (1) and a pin assembly (2). The housing (1) contains a circuit module. A rotating seat (3) is provided on one side of the housing (1), and a spring plate seat (4) is provided on the other side. A power connection groove (5) is provided on the rotating seat (3), and a spring plate (6) is provided on the spring plate seat (4). A dustproof sheet (16) is also provided on one side of the spring plate seat (4), which covers the power connection groove (5). The pin assembly (2) is hinged to the rotating seat (3), and the pin assembly (2) is electrically connected to the internal circuit module through the spring plate (6).
2. The spring-loaded, European-standard foldable plug charging device according to claim 1, characterized in that: The dustproof sheet (16) has a dustproof cover (17) on one side, and the dustproof cover (17) covers the entire spring seat (4).
3. The spring-loaded, European-standard foldable plug charging device according to claim 1 or 2, characterized in that: One end of the spring (6) is bent into a folded edge (14), and the other end is provided with a wiring hole (15). The spring (6) is electrically connected to the internal circuit module of the charging device through the wiring hole (15).
4. The spring-loaded, European-standard foldable plug charging device according to claim 1, characterized in that: The pin assembly (2) includes a base shell (8) and a base inner shell (9). The base inner shell (9) has a groove (10) on one side corresponding to the rotating seat (3). The inner wall of the groove (10) has a power connection groove (11). The power connection groove (11) has a power connection post (12). One end of the power connection post (12) is connected to the pin (13), and the other end is led out from the power connection groove.
5. The spring-loaded, European-standard foldable plug charging device according to claim 4, characterized in that: Magnets (7) are provided between the inner shell (9) and the outer shell (8) of the base, and on the spring plate seat (4).