A power adapter pin structure

Abstract

The utility model belongs to power adapter technical field especially is a kind of power adapter pin structure. Including base, pin body and metal spring piece, pin body is rotatably installed on base, with two kinds of working conditions of use position and storage position;Metal spring piece has fixed section and free section;The utility model metal spring piece realizes the bistable self-locking of pin body in use position and storage position by the synergies of U-shaped positioning part and round corner positioning part, ensure electrical contact stability and mechanical positioning reliability, its free section and conductive metal piece form double contact point structure, both conduct current and maintain pin state, the multiple positioning holes of fixed section and bending design enhance installation stability, cooperate the three-dimensional positioning system of pressing plate and prolong the service life of metal spring piece, the bidirectional misplacement clamping structure of conductive spring piece further strengthens the synchronism of mechanical and electrical connection, make overall structure keep performance stable in repeated switching, have broad application prospect.

Description

Technical Field

[0001] This utility model relates to the field of power adapter technology, specifically to a power adapter pin structure. Background Technology

[0002] A power adapter is a power conversion device for small portable electronic devices and appliances. It is generally composed of components such as a casing, transformer, inductor, capacitor, control IC, and PCB board. Its working principle is to convert AC input to DC output. According to the connection method, it can be divided into wall plug type and desktop type.

[0003] In existing technologies, the electrical connection of the power adapter pin structure is unstable, the lack of an effective self-locking mechanism in the storage state makes it easy to loosen, the metal spring installation method is simple and easy to shift, and the separation of mechanical and electrical linkage design leads to insufficient reliability and unsatisfactory performance.

[0004] Therefore, we propose a power adapter pin structure to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a power adapter pin structure that solves the problems of poor stability of metal spring contacts and poor electrical connection stability mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A power adapter plug structure includes a base, a plug body, and a metal spring. The plug body is rotatably mounted on the base and has two working states: a usage position and a storage position.

[0010] The metal spring has a fixed section and a free section. The free section continuously presses the plug body with elastic force, so that the plug body can achieve self-locking stability in both the use position and the storage position.

[0011] Furthermore, the metal spring is disposed inside the base, the fixing section is provided with at least two positioning holes, and one end of the fixing section is bent downward.

[0012] Furthermore, the free segment is provided with a U-shaped positioning part, an arc-shaped guide part, and a rounded corner positioning part from bottom to top.

[0013] Furthermore, a fixed seat is provided on the top of the base, and a lower shell is rotatably mounted on the fixed seat. An avoidance notch is provided on one side of the lower shell, and the plug body is installed inside the lower shell.

[0014] Furthermore, the lower shell is provided with a conductive metal sheet corresponding to the plug body, and the bottom end of the conductive metal sheet extends to the free section.

[0015] Furthermore, it also includes a conductive spring, with a notched circular hole and an H-shaped through hole respectively provided inside both ends of the conductive spring. The notched circular hole is engaged with the bottom end of the plug body, and the H-shaped through hole is engaged with the top end of the conductive metal sheet.

[0016] Furthermore, when the conductive metal sheet engages with the U-shaped positioning part, it forms the usage position of the plug body; when the conductive metal sheet abuts against the rounded corner positioning part, it forms the storage position of the plug body.

[0017] Furthermore, the upper shell is fitted together with the lower shell and the main body of the plug.

[0018] Furthermore, the base has a pressure plate inside secured by screws, and the top of the pressure plate is provided with positioning grooves that correspond one-to-one with the position and number of positioning holes.

[0019] Furthermore, the top of the inner wall of the base is provided with a positioning post, one end of which passes through the positioning hole and is engaged in the positioning groove, and the number of positioning posts is the same as the number of positioning holes.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, this utility model provides a power adapter pin structure with the following features:

[0022] Beneficial effects:

[0023] This invention utilizes the synergistic effect of a U-shaped positioning part and a rounded corner positioning part to achieve bistable self-locking of the plug body in both the usage and storage positions, ensuring electrical contact stability and mechanical positioning reliability. Its free section forms a double-contact structure with the conductive metal sheet, conducting current while maintaining the plug state. The multiple positioning holes and bending design of the fixed section enhance installation stability. Combined with the three-dimensional positioning system of the pressure plate, it extends the lifespan of the metal spring. The bidirectional staggered snap-fit ​​structure of the conductive spring further strengthens the synchronization of mechanical and electrical connections, ensuring stable performance of the overall structure during repeated switching, and possesses broad application prospects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structural position of the main body of the plug of this utility model.

[0025] Figure 2 This is a cross-sectional view of the main body of the plug of this utility model in use.

[0026] Figure 3 This is an exploded view of the base structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the metal spring structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the conductive spring structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the storage position structure of the main body of the plug of this utility model;

[0030] Figure 7 This is a cross-sectional view of the structure of the main body of the plug of this utility model for storing the plug.

[0031] In the diagram: 1. Base; 11. Fixing seat; 12. Pressure plate; 13. Positioning groove; 14. Positioning post; 2. Pin body; 3. Metal spring; 31. Fixing section; 311. Positioning hole; 32. Free section; 321. U-shaped positioning part; 322. Arc-shaped guide part; 323. Rounded corner positioning part; 4. Lower shell; 41. Avoidance notch; 5. Conductive metal sheet; 6. Conductive spring; 61. Round hole with notch; 62. H-shaped through hole; 7. Upper shell. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example

[0034] like Figure 1-7 As shown, an embodiment of the present invention provides a power adapter plug structure, including a base 1, a plug body 2, and a metal spring 3. The plug body 2 is rotatably mounted on the base 1 and has two working states: a usage position and a storage position.

[0035] The metal spring 3 has a fixed section 31 and a free section 32. The free section 32 continuously presses the plug body 2 with elastic force, so that the plug body 2 can achieve self-locking stability in both the use position and the storage position.

[0036] The main body of the plug 2 is either a European standard plug or a Chinese standard plug.

[0037] like Figure 2-3 As shown, in some embodiments, the metal spring 3 is disposed inside the base 1, the fixing section 31 is provided with at least two positioning holes 311, and one end of the fixing section 31 is bent downward.

[0038] The positioning hole 311 and bending design of the fixed section 31 enhance the installation stability of the metal spring 3, prevent the metal spring 3 from shifting during long-term use, and ensure the accuracy of the elastic force transmission path.

[0039] like Figure 4 As shown, in some embodiments, the free segment 32 is provided with a U-shaped positioning part 321, an arc-shaped guide part 322 and a rounded corner positioning part 323 from bottom to top.

[0040] The two ends of the U-shaped structure can block the two sides of the bottom of the conductive metal sheet 5, thereby limiting the position of the plug body 2 without the presence of large external force. At the same time, it increases the contact area and improves the stability of the electrical connection. The arc-shaped guide part 322 reduces the rotation friction of the plug, and the rounded corner positioning part 323 realizes the elastic self-locking of the storage state. The triple structure works together to ensure the reliability of state switching.

[0041] like Figure 2-3 As shown, in some embodiments, a fixed seat 11 is provided on the top of the base 1, and a lower shell 4 is rotatably provided on the fixed seat 11. An avoidance notch 41 is provided on one side of the lower shell 4, and the plug body 2 is installed inside the lower shell 4.

[0042] The rotating connection between the fixed base 11 and the lower shell 4 forms a rotation fulcrum. The clearance notch 41 provides room for movement for the plug body 2. At the same time, the design of the clearance notch 41 on one side of the lower shell 4 allows the lower shell 4 and the plug body 2 to only move 90 degrees on one side, limiting the stroke and avoiding unnecessary rotation.

[0043] like Figure 2 As shown, in some embodiments, the lower shell 4 is provided with a conductive metal sheet 5 corresponding to the pin body 2, and the bottom end of the conductive metal sheet 5 extends to the free section 32.

[0044] The conductive metal sheet 5 is designed to extend to form a double contact structure, which ensures current conduction in the use state and maintains the positioning in the storage and use states through the elasticity of the free segment 32.

[0045] like Figure 5 As shown, in some embodiments, a conductive spring 6 is also included. The conductive spring 6 has a notched circular hole 61 and an H-shaped through hole 62 respectively inside its two ends. The notched circular hole 61 is engaged with the bottom end of the pin body 2, and the H-shaped through hole 62 is engaged with the top end of the conductive metal sheet 5.

[0046] The conductive spring 6 has a notched circular hole 61 and an H-shaped through hole 62 forming a bidirectional snap-fit ​​structure, realizing the mechanical linkage and electrical connection between the plug body 2 and the conductive metal sheet 5. The notched circular hole 61 has equally divided notches inside, which ensures the snap-fit ​​stability between it and the plug body 2. The shape design of the H-shaped through hole 62 also ensures the snap-fit ​​stability between it and the conductive metal sheet 5. At the same time, the two ends of the conductive spring 6 correspond to the bottom of the plug body 2 and the top of the conductive metal sheet 5, respectively. This staggered design prevents the conductive spring 6 from floating up and down and detaching from the bottom of the plug body 2 and the conductive metal sheet 5, further ensuring the stability of use.

[0047] like Figure 1-7 As shown, in some embodiments, when the conductive metal sheet 5 is engaged with the U-shaped positioning part 321, it forms the usage position of the plug body 2; when the conductive metal sheet 5 abuts against the rounded corner positioning part 323, it forms the storage position of the plug body 2.

[0048] When the product is in use, the U-shaped positioning part 321 is constantly in contact with the conductive metal sheet 5, keeping it in a conductive state. The two ends of the U-shaped structure can block the two sides of the bottom of the conductive metal sheet 5, thus limiting the position of the plug body 2 without significant external force. When the product is in a stored state, the rounded corner positioning part 323 uses its own metal elasticity to keep the conductive metal sheet 5 in place at all times, ensuring that the plug body 2 remains in a stored state.

[0049] like Figure 1-2 As shown, in some embodiments, the upper shell 7 is fitted together with the lower shell 4 on the outside of the pin body 2 and the lower shell 4.

[0050] The upper shell 7 shields the lower shell 4, the fixing base 11, and the conductive metal sheet 5, improving the overall appearance of the product.

[0051] like Figure 3 As shown, in some embodiments, the base 1 has a pressure plate 12 locked inside by screws. The top of the pressure plate 12 is provided with a positioning groove 13 that corresponds one-to-one with the position and number of the positioning holes 311. The top of the inner wall of the base 1 is provided with a positioning post 14 that passes through the positioning hole 311 and is inserted into the positioning groove 13. The number of positioning posts 14 is the same as the number of positioning holes 311.

[0052] The cooperation between the pressure plate 12 and the positioning groove 13 forms a three-dimensional positioning system. The metal spring 3 can be installed without welding by screw locking. The through-type design of the positioning post 14 eliminates the cumulative assembly error. The multi-hole distribution ensures that the metal spring 3 is subjected to uniform force and extends the elastic life.

[0053] In summary, the metal spring 3, through the synergistic effect of the U-shaped positioning part 321 and the rounded corner positioning part 323, achieves bistable self-locking of the plug body 2 in both the use and storage positions, ensuring electrical contact stability and mechanical positioning reliability. Its free section 32 forms a double-contact structure with the conductive metal sheet 5, which both conducts current and maintains the plug state. The multiple positioning holes 311 and bending design of the fixed section 31 enhance installation stability. Combined with the three-dimensional positioning system of the pressure plate 12, it extends the life of the metal spring 3. The bidirectional staggered snap-fit ​​structure of the conductive spring 6 further strengthens the synchronization of mechanical and electrical connections, enabling the overall structure to maintain stable performance during repeated switching, and has broad application prospects.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A power adapter plug structure, comprising a base (1), a plug body (2), and a metal spring (3), characterized in that: The plug body (2) is rotatably mounted on the base (1) and has two working states: a usage position and a storage position. The metal spring (3) has a fixed section (31) and a free section (32). The free section (32) continuously presses the plug body (2) with elastic force, so that the plug body (2) can achieve self-locking stability in both the use position and the storage position.

2. The power adapter pin structure according to claim 1, characterized in that: The metal spring (3) is disposed inside the base (1), and at least two positioning holes (311) are provided on the fixing section (31), and one end of the fixing section (31) is bent downward.

3. The power adapter pin structure according to claim 1, characterized in that: The free segment (32) is provided with a U-shaped positioning part (321), an arc-shaped guide part (322), and a rounded corner positioning part (323) from bottom to top.

4. The power adapter pin structure according to claim 1, characterized in that: The base (1) has a fixed seat (11) on its top, and a lower shell (4) is rotatably mounted on the fixed seat (11). A clearance notch (41) is provided on one side of the lower shell (4), and the plug body (2) is installed inside the lower shell (4).

5. The power adapter pin structure according to claim 4, characterized in that: The lower shell (4) is provided with a conductive metal sheet (5) corresponding to the plug body (2), and the bottom end of the conductive metal sheet (5) extends to the free section (32).

6. The power adapter pin structure according to claim 1, characterized in that: It also includes a conductive spring (6), with a notched round hole (61) and an H-shaped through hole (62) respectively provided inside both ends of the conductive spring (6). The notched round hole (61) is engaged with the bottom end of the pin body (2), and the H-shaped through hole (62) is engaged with the top end of the conductive metal sheet (5).

7. The power adapter pin structure according to claim 5, characterized in that: When the conductive metal sheet (5) engages with the U-shaped positioning part (321), it forms the use position of the plug body (2); when the conductive metal sheet (5) abuts against the rounded corner positioning part (323), it forms the storage position of the plug body (2).

8. The power adapter pin structure according to claim 1, characterized in that: The upper shell (7) is fitted together with the lower shell (4) and the main body (2).

9. The power adapter pin structure according to claim 1, characterized in that: The base (1) has a pressure plate (12) inside by screws, and the top of the pressure plate (12) is provided with positioning grooves (13) that correspond one-to-one with the position and number of positioning holes (311).

10. A power adapter pin structure according to claim 1, characterized in that: The top of the inner wall of the base (1) is provided with a positioning post (14) that passes through the positioning hole (311) and is engaged in the positioning groove (13). The number of positioning posts (14) is the same as the number of positioning holes (311).

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