A multi-interface compatible power adapter
By designing the bottom and top shell structures of a multi-interface compatible power adapter, and utilizing a ring-shaped limiting plate and positioning components to achieve convenient rotation and positioning of the interfaces, the problems of easy loss and aging of connectors are solved, thereby improving the stability and safety of the power adapter.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ROYAL ELECTRONICS
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-05
AI Technical Summary
The connectors of existing power adapters are independent of each other, making them easy to lose and causing aging and poor contact due to frequent plugging and unplugging.
A multi-interface compatible power adapter was designed, which adopts a bottom shell and top shell structure. It utilizes a ring-shaped limiting plate, positioning components and heat dissipation components. The charging slot is connected to the interface by rotating the bottom shell, and the interface is conveniently positioned and protected by springs and blocks. The combination of magnetic structure and dustproof mesh improves stability and safety.
It solves the problems of easy connector loss and aging caused by frequent plugging and unplugging, improves ease of use and safety, avoids poor contact, and enhances the stability and durability of the power adapter.
Smart Images

Figure CN224329377U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power adapter technology, specifically relating to a multi-interface compatible power adapter. Background Technology
[0002] A power adapter is a power conversion device for small portable electronic devices and appliances. Its main principle is to convert alternating current (AC) to direct current (DC). It typically includes a transformer, a rectifier circuit, and a voltage regulator circuit. The transformer converts the mains voltage to the voltage required by the device, the rectifier circuit converts AC to DC, and the voltage regulator circuit keeps the output voltage stable.
[0003] Some existing power adapters come with multiple types of connectors to facilitate use on different devices. However, since the multiple connectors are independent of the power adapter, the connectors are easily lost. In addition, frequent plugging and unplugging of the connectors can easily cause aging and lead to problems such as poor contact.
[0004] Therefore, a multi-interface compatible power adapter is designed to overcome the aforementioned technical shortcomings. Utility Model Content
[0005] (1) Technical problems to be solved
[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a multi-interface compatible power adapter. This power adapter aims to solve the technical problems in the prior art, such as the connector and the power adapter being independent of each other, the connector being easily lost, and the frequent plugging and unplugging of the connector being prone to aging and poor contact.
[0007] (2) Technical solution
[0008] To solve the above-mentioned technical problems, this utility model provides a multi-interface compatible power adapter, including a bottom shell and a top shell. An annular limiting plate is fixedly connected to the inner wall of the bottom shell, the bottom of the top shell abuts against the annular limiting plate, and two positioning components are provided on the bottom end face of the top shell.
[0009] The inner wall of the top shell is equipped with a circuit board, which has multiple interfaces electrically connected to it. The side wall of the top shell has multiple through slots, each corresponding to one of the interfaces. The side wall of the bottom shell has a charging slot, which is compatible with the through slots. The bottom surface of the bottom shell is equipped with a heat dissipation component.
[0010] Furthermore, the circuit board is electrically connected to a power supply plug, and several heat dissipation holes are provided on the circuit board.
[0011] Furthermore, the positioning component includes two grooves formed on the bottom end face of the top shell, with a spring fixedly connected to the top surface of the grooves and a locking block fixedly connected to the bottom end of the spring. The top surface of the annular limiting plate has multiple slots, and the locking block is adapted to the slots.
[0012] Furthermore, both the card block and the card slot are arc-shaped structures.
[0013] Furthermore, the heat dissipation assembly includes a cooling fan fixedly mounted on the bottom surface of the bottom shell, a round hole on the top surface of the top shell, an iron ring detachably mounted on the side wall of the round hole, and a dustproof mesh fixedly connected to the inner wall of the iron ring.
[0014] Furthermore, a baffle is installed on the bottom surface of the bottom shell, located below the cooling fan.
[0015] Furthermore, an annular magnetic sheet is fixedly connected to the top surface of the top shell, and the iron ring is attracted to the annular magnetic sheet.
[0016] Furthermore, a limiting ring is fixedly connected to the inner wall of the bottom shell near the top, and a limiting groove is opened on the side wall of the top shell near the bottom, with the limiting ring and the limiting groove being rotatably connected.
[0017] (3) Beneficial effects
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This utility model, through the design of the bottom shell, top shell, circuit board and positioning components, allows users to directly rotate the bottom shell when selecting an interface, so that the charging slot can be connected to the through slot of the corresponding interface position, and the bottom shell can be used to seal and protect other unused interfaces. On the one hand, it solves the problem of multiple interfaces being placed independently in the traditional way, and on the other hand, it avoids aging and damage caused by frequent plugging and unplugging of interfaces. Attached Figure Description
[0020] Figure 1 This is a perspective view of the present utility model;
[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0022] Figure 3 This is a schematic diagram of the disassembled structure of the top shell of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the bottom shell of this utility model;
[0024] Figure 5 This is a schematic diagram of the circuit board structure of this utility model;
[0025] Figure 6 This utility model Figure 2 Enlarged view of point A in the image;
[0026] Figure 7 This utility model Figure 2 Enlarged view of point B in the image.
[0027] The markings in the attached diagram are as follows: 1. Bottom shell; 2. Top shell; 3. Annular limiting plate; 4. Circuit board; 5. Power plug; 6. Interface; 7. Heat dissipation hole; 8. Groove; 9. Spring; 10. Locking block; 11. Locking slot; 12. Through slot; 13. Charging slot; 14. Cooling fan; 15. Dustproof mesh; 16. Iron ring; 17. Annular magnetic sheet; 18. Limiting ring; 19. Limiting groove; 20. Baffle. Detailed Implementation
[0028] This specific embodiment is a multi-interface compatible power adapter, and its structural diagram is shown below. Figures 1-7 As shown, it includes a bottom shell 1 and a top shell 2. An annular limiting plate 3 is fixedly connected to the inner wall of the bottom shell 1. The bottom of the top shell 2 abuts against the annular limiting plate 3. Two positioning components are provided on the bottom end face of the top shell 2.
[0029] The inner wall of the top shell 2 is equipped with a circuit board 4, which is electrically connected to multiple interfaces 6. Multiple through slots 12 are opened on the side wall of the top shell 2, and each through slot 12 corresponds to an interface 6. A charging slot 13 is opened on the side wall of the bottom shell 1, which is adapted to the through slot 12. A heat dissipation component is provided on the bottom surface of the bottom shell 1.
[0030] The circuit board 4 is electrically connected to a power supply plug 5, and has several heat dissipation holes 7. The structure of the components and connectors 6 used on the circuit board 4 can all be implemented by partial layout using existing technology, therefore, this part will not be described in detail in this solution.
[0031] like Figure 2 and Figure 6 As shown, the positioning component includes two grooves 8 formed on the bottom end face of the top shell 2. A spring 9 is fixedly connected to the top surface of the groove 8, and a locking block 10 is fixedly connected to the bottom end of the spring 9. A plurality of slots 11 are formed on the top surface of the annular limiting plate 3, and the locking block 10 is adapted to the slots 11.
[0032] Both the card block 10 and the card slot 11 are arc-shaped structures.
[0033] The shape of both the card block 10 and the card slot 11 is set as an arc structure. When subjected to an applied pushing force, the card block 10 can easily disengage from the card slot 11, thereby adjusting the rotation angle of the bottom shell 1. Each time the card block 10 is inserted into a card slot 11, the charging slot 13 corresponds to one of the interfaces 6. By continuously rotating the bottom shell 1, the charging slot 13 can be connected to the required interface 6, which is highly flexible. Compared with the traditional plug-in method, this solution is more convenient to use.
[0034] like Figures 2-4As shown, the heat dissipation assembly includes a cooling fan 14 fixedly mounted on the bottom surface of the bottom shell 1, and a circular hole on the top surface of the top shell 2. An iron ring 16 is detachably mounted on the side wall of the circular hole, and a dustproof mesh 15 is fixedly connected to the inner wall of the iron ring 16. To increase the stability of the circuit board 4 during use, the cooling fan 14 starts accordingly when the power is turned on to dissipate the heat generated by the components on the circuit board 4. The airflow can enter the interior of the bottom shell 1 through the dustproof mesh 15, forming an airflow circulation to ensure that the temperature remains within a suitable range during use.
[0035] like Figure 2 As shown, a baffle 20 is mounted on the bottom surface of the base shell 1, located below the cooling fan 14. The baffle 20 is used to shield and protect the fan blades of the cooling fan 14 to prevent safety hazards.
[0036] like Figure 3 As shown, an annular magnetic sheet 17 is fixedly connected to the top surface of the top shell 2, and the iron ring 16 is attracted to the annular magnetic sheet 17. The dust filter 15 is connected by magnetic attraction, which allows it to be quickly removed for cleaning or maintenance, avoiding excessive dust from clogging the dust filter 15 and affecting the air intake.
[0037] A limiting ring 18 is fixedly connected to the inner wall of the bottom shell 1 near the top, and a limiting groove 19 is formed on the side wall of the top shell 2 near the bottom. The limiting ring 18 and the limiting groove 19 are rotatably connected. This can strengthen the connection between the bottom shell 1 and the top shell 2, giving them higher stability and avoiding problems such as detachment or jamming.
[0038] Working principle: When the user uses the device, they select the corresponding interface 6 according to the power supply requirements. First, they hold the top shell 2 and rotate the bottom shell 1. The locking block 10 is pushed and moves into the groove 8 using its arc-shaped surface. At the same time, the spring 9 is compressed, causing the locking block 10 to disengage from the slot 11. During the rotation, the specifications of the interface 6 can be observed through the charging slot 13. When the device is rotated to the designated position of the interface 6, the spring 9 rebounds and drives the locking block 10 into the slot 11 for positioning. At the same time, the charging slot 13 is connected to the through slot 12, and the user can insert the charging cable into the interface 6. At this time, the other interfaces 6 are all sealed by the bottom shell 1, increasing the safety during use.
[0039] All technical features in this embodiment can be freely combined according to actual needs.
[0040] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A multi-interface compatible power adapter, comprising a bottom shell (1) and a top shell (2), characterized in that: The inner wall of the bottom shell (1) is fixedly connected to an annular limiting plate (3), the bottom of the top shell (2) abuts against the annular limiting plate (3), and two positioning components are provided on the bottom end face of the top shell (2); A circuit board (4) is installed on the inner wall of the top shell (2). Multiple interfaces (6) are electrically connected to the circuit board (4). Multiple through slots (12) are opened on the side wall of the top shell (2). Each of the multiple through slots (12) corresponds to one of the interfaces (6). A charging slot (13) is opened on the side wall of the bottom shell (1). The charging slot (13) is adapted to the through slots (12). A heat dissipation component is provided on the bottom surface of the bottom shell (1).
2. The multi-interface compatible power adapter according to claim 1, characterized in that: The circuit board (4) is electrically connected to a power supply plug (5), and the circuit board (4) has several heat dissipation holes (7).
3. A multi-interface compatible power adapter according to claim 1, characterized in that: The positioning component includes two grooves (8) formed on the bottom end face of the top shell (2). A spring (9) is fixedly connected to the top surface of the groove (8). A locking block (10) is fixedly connected to the bottom end of the spring (9). A plurality of slots (11) are formed on the top surface of the annular limiting plate (3). The locking block (10) is adapted to the slots (11).
4. A multi-interface compatible power adapter according to claim 3, characterized in that: Both the card block (10) and the card slot (11) are arc-shaped structures.
5. A multi-interface compatible power adapter according to claim 1, characterized in that: The heat dissipation assembly includes a cooling fan (14) fixedly installed on the bottom surface of the bottom shell (1), and a round hole is opened on the top surface of the top shell (2). An iron ring (16) is detachably fitted on the side wall of the round hole, and a dustproof net (15) is fixedly connected to the inner wall of the iron ring (16).
6. A multi-interface compatible power adapter according to claim 5, characterized in that: The bottom surface of the bottom shell (1) is fitted with a baffle (20) located below the cooling fan (14).
7. A multi-interface compatible power adapter according to claim 5, characterized in that: The top surface of the top shell (2) is fixedly connected to an annular magnetic sheet (17), and the iron ring (16) is attracted to the annular magnetic sheet (17).
8. A multi-interface compatible power adapter according to claim 1, characterized in that: A limiting ring (18) is fixedly connected to the inner wall of the bottom shell (1) near the top end, and a limiting groove (19) is opened on the side wall of the top shell (2) near the bottom end. The limiting ring (18) and the limiting groove (19) are rotatably connected.