Charger and its hook structure

Abstract

The utility model relates to a kind of charger and its hook structure, including rotating connection in outside installation surface hook body, assembly in the installation component of the hinged end of the hook body, the installation component includes torsional spring, the torsional spring provides reset force for the hook body, the hook body is configured with limit block group, at least one the limit block provides limit force for hook body;The central angle formed between the hinged point of adjacent two limit blocks and hook body, is the rotation angle range of hook body, the hook body has the storage state of sticking outside installation surface, the use state of the state of stretching out outside outside installation surface in rotation process.The present application can conveniently fix charger in the use process of user, while it can also prevent charger from falling damage in charging process.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle parts technology, and in particular to a charger and its hook structure. Background Technology

[0002] Two-wheeled vehicle chargers typically first convert 220V AC power to DC power via a rectifier bridge, then use a circuit composed of switching transistors and other components to convert the DC power back to high-frequency AC power. After being stepped down by a transformer, the DC power is then rectified and filtered to output DC power suitable for battery charging. Smart chargers also use chips to monitor the battery status and automatically adjust charging parameters.

[0003] Two-wheeled vehicle users often plug in both the AC and DC power connectors of their chargers and then leave the charger suspended in the air or placed in front of the vehicle. Because the charger has its own weight, prolonged suspension can easily cause damage to the connectors or damage from drops. Utility Model Content

[0004] This application addresses the shortcomings of the existing manufacturing technology by providing a charger with a reasonable structure and its hook structure, which allows users to easily fix the charger during use and prevents the charger from falling and getting damaged during charging.

[0005] The technical solution adopted in this utility model is as follows: A hook structure includes a hook body rotatably connected to an external mounting surface and a mounting assembly fitted to the hinged end of the hook body. The mounting assembly includes a torsion spring that provides a restoring force to the hook body. The hook body is equipped with a set of limiting blocks, at least one of which provides a limiting force to the hook body; the central angle formed between the hinge points of two adjacent limiting blocks and the hook body is the rotation angle range of the hook body. During rotation, the hook body has a retracted state that fits against the external mounting surface and a usable state that extends beyond the external mounting surface.

[0006] As a further improvement to the above technical solution: The hook body includes: The rod is hinged to the external mounting surface. The hook portion is formed at the end of the rod portion away from the hinge end. A snap-fit ​​structure is formed on at least one side of the rod, and the snap-fit ​​structure engages with at least one limiting block.

[0007] The snap-fit ​​structure includes: The load-bearing part extends from the aforementioned rod. The deformation section extends from the load-bearing section. The load-bearing part and the deformation part are arranged in a buckle with an opening.

[0008] The buckle structure is set on both sides of the rod, and each buckle structure is engaged with a limit block.

[0009] At least one limiting block is formed with a pointed part, which abuts against the deformable part to achieve a fastening; the pointed part is formed on the external mounting surface, or the pointed part is deformable with the external mounting surface as a reference surface.

[0010] The limiting block group includes a first limiting block and a second limiting block, and the central angle formed between the first limiting block, the second limiting block and the hinge point of the hook body is 90°.

[0011] The installation components include: Studs, located on the external mounting surface, serve as the mounting base. A torsion spring is fitted onto the stud. A retaining ring is fixedly connected to the hook body and sleeved on the stud, and is press-fitted to the end face of the torsion spring along with the hook body.

[0012] The torsion spring provides the restoring force for the hook body to return to the stored state.

[0013] A charger includes the hook structure described above, wherein any one of the flat sidewalls of the charger serves as the mounting surface of the hook structure, and the hook structure rotates on the flat sidewall of the charger to switch between a use state and a storage state.

[0014] As a further improvement to the above technical solution: When the hook body is rotated to the use position, the hook extends beyond the edge contour of the charger; When the hook body is rotated to the retracted state, the projection of the hook body on the mounting surface is within the range of the mounting surface.

[0015] The beneficial effects of this utility model are as follows: This invention employs a rotary hook structure. When the hook is rotated to the use position, the hook's locking mechanism and limiting block engage to restrict the hook's rotation. After use, the user can press the locking mechanism counterclockwise to disengage it from the limiting block. Under the action of the torsion spring, the locking mechanism returns to its initial state and is pressed against another limiting block by the elastic restoring force of the torsion spring, ensuring that the hook body does not wobble.

[0016] This utility model also provides a non-standard buckle structure and a corresponding limiting block structure. Unlike the thin structure of conventional buckles, this utility model uses a simple structure and a design that allows both the buckle and the limiting block to deform, reducing the deformation of conventional buckles by half and further extending their service life.

[0017] The use of a torsion spring and a set of buckles, as well as the use of a torsion spring and two sets of buckles, are all within the design of this application. The use of two sets of buckles increases the cost very little, but it is equivalent to adding a layer of protection to the torsion spring structure. Even if the torsion spring fails, the use of two sets of buckles can ensure that the hook body can maintain a stable relative position in both use and storage. Attached Figure Description

[0018] Figure 1 This is an exploded view of the overall structure of this application.

[0019] Figure 2 This is an overall structural assembly drawing of this application, showing the storage and usage states of the hook body.

[0020] The components include: 1. Charger body; 2. Stud; 3. Torsion spring; 4. Snap ring; 5. Hook body; 6. Tip; 101. First limiting block; 102. Second limiting block; 501. Rod part; 502. Hook part; 503. Load-bearing part; 504. Deformation part. Detailed Implementation

[0021] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0022] Example 1: like Figure 1 The figure shown is an exploded view of the hook structure of this application. The hook structure includes a hook body 5 and an installation component for mounting the hook body 5 to a designated position.

[0023] The hook body 5 is a one-piece molded structure to enhance its own strength. The hook body 5 can be divided into a rod 501 and a hook 502. The hook 502 is formed at one end of the rod 501, and the end of the rod 501 opposite to the hook 502 is a hinge end. The mounting component is assembled at the hinge end of the rod 501 to enable the rotation of the rod 501.

[0024] A load-bearing portion 503 is formed on one long side of the rod portion 501. The load-bearing portion 503 is perpendicular to the rod portion 501, and its dimensions are smaller than those of the rod portion 501. A deformable portion 504 extends from the load-bearing portion 503 and is located on one long side of the load-bearing portion 503. The load-bearing portion 503, the deformable portion 504, the rod portion 501, and the hook portion 502 are all located in the same plane. The deformable portion 504 is bent at an angle for easier deformation. During rotation, the hook body 5 can be flush against a plane, such as the mounting surface.

[0025] The load-bearing part 503 and the deformation part 504 together form a snap-fit ​​structure, and at least one snap-fit ​​structure shall be provided.

[0026] Reference Figure 2 When in use, the hook structure has two states: a working state where it can be suspended, and a stored state where the hook is retracted. When stored, the hook body 5 should lie flat against the mounting surface, ideally not extending beyond the edge of the mounting surface to prevent damage. When suspended, the hook body 5 should rotate until the hook portion 502 extends beyond the edge of the mounting surface, allowing the hook portion 502 to hook onto external structures.

[0027] Therefore, in order to prevent the hook body 5 from easily shifting when rotated to the expected state, it is necessary to limit the hook body 5 in both the hanging working state and the storage state.

[0028] In this embodiment, a first limiting block 101 and a second limiting block 102 are used to limit the rod 501. The included angle between the first limiting block 101, the second limiting block 102 and the hinge point of the rod 501 is 90°.

[0029] The snap-fit ​​structure can engage with a limiting block, for example, when in the suspended working state, it engages with the second limiting block 102; when in the storage state, it abuts against the first limiting block 101.

[0030] The mounting assembly includes a stud 2 pre-installed on the mounting surface, with a torsion spring 3 fitted onto the stud 2. A through hole is formed at the hinge end of the rod 501, through which the rod 501 is inserted and pressed against the torsion spring 3. A retaining spring 4 is then positioned at the end of the torsion spring 3 facing away from the mounting surface, also fitted onto the stud 2, forming a structure capable of automatic reset. The combination of the torsion spring 3 and retaining spring 4 is existing technology and is only briefly described in this embodiment. The retaining spring 4 is installed in a specific slot on the hook, and its elastic tension secures it within the structure, limiting the axial movement of the hook and preventing it from detaching from the rod, thus stabilizing the structure and maintaining the relative positions of the components. The retaining spring 4 is responsible for axial positioning and preventing detachment, while the torsion spring 3 provides the reset torque. When the opening of the latching structure disengages from the second limiting block 102, it is pushed by the torsion spring 3 to abut against the first limiting block 101. The elastic reset force of the torsion spring 3 acts as the force pressing the rod 501.

[0031] Example 2: The difference from Embodiment 1 is that this embodiment uses two snap-fit ​​structures to limit the hook body 5.

[0032] The design of the snap-fit ​​structure needs to take into account the number of limiting blocks on the mounting surface. If the limiting requirements are high, two snap-fit ​​structures can be installed.

[0033] Both snap-fit ​​structures are identical in composition, consisting of a load-bearing part 503 and a deformation part 504. Each load-bearing part 503 and deformation part 504 forms a snap-fit ​​structure with an opening facing the corresponding limiting block.

[0034] When the hook body 5 rotates to be close to the first limiting block 101, the latching structure on the side of the hook body 5 facing the first limiting block 101 latches the first limiting block 101. When the hook body 5 rotates to be close to the second limiting block 102, the latching structure on the side of the hook body 5 facing the second limiting block 102 latches the second limiting block 102.

[0035] The advantage of this double-clamp structure is that it can completely resist axial movement of the hook body 5 caused by gravity or loosening and failure of the mounting components. It can be seen as a safety structure in case of mounting component failure. No matter how it is placed, the hook body 5 will not have relative displacement when suspended or stored.

[0036] Example 3: The first limiting block 101 and the second limiting block 102 can adopt the following structures: Cube bumps. Cube bumps can be molded onto the mounting surface in one piece using injection molding, or they can be glued to the mounting surface. The advantages of cube bumps are ease of production and a large contact area with the rod 501.

[0037] Cylindrical bumps. Cylindrical bumps can be molded onto the mounting surface in one piece using injection molding, or they can be glued onto the mounting surface using adhesive.

[0038] Hemispherical bumps. Hemispherical bumps can be integrally injection molded onto the mounting surface, or they can be glued to the mounting surface. Alternatively, the simplest method is to directly screw them onto the mounting surface using a ball-head screw. However, for mounting surfaces with complex internal structures, the use of ball-head screws is not recommended to prevent damage to the internal structure. The contact between cylindrical and hemispherical bumps and the rod 501 is line contact or point contact, which is relatively weaker than the limiting ability of cubic bumps. However, if it is necessary to cooperate with a snap-fit ​​with an open opening, the arcuate contour of the cylindrical or hemispherical bump is more suitable for guiding the deformation of the snap-fit.

[0039] The irregularly shaped protrusion has a small tip 6. The tip 6 of the irregularly shaped protrusion is mainly used to cooperate with the deformation part 504 of the buckle. Through the smaller size structure, the deformation force that needs to be overcome for the buckle to engage is smaller.

[0040] As a further optimization, the tip 6 of the irregular protrusion may not be fixed to the mounting surface. When the deformable part 504 of the buckle structure comes into contact with the tip 6, the tip 6 may also deform accordingly, reducing the degree of deformation of the deformable part 504 and extending the service life of the buckle.

[0041] Example 4: like Figure 1 As shown in the figure, the application to a charger is also illustrated. The charger has a cubic structure, with a hook structure installed on one side wall of the charger.

[0042] When the hook body 5 is in the stored state, the rod portion 501 is parallel to the long side of the charger, providing more space to accommodate the hook body 5 and ensuring that the hook body 5 does not exceed the outer contour of the charger. When in use, the hook portion 502 extends beyond the long contour of the charger, facilitating the hook portion 502 to cooperate with external structures for suspension.

[0043] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A hook structure, characterized in that: Includes a hook body (5) rotatably connected to an external mounting surface, and a mounting assembly fitted to the hinge end of the hook body (5). The mounting assembly includes a torsion spring (3) that provides a restoring force to the hook body (5). The hook body (5) is equipped with a set of limiting blocks, at least one of the limiting blocks provides a limiting force to the hook body (5); the central angle formed between the hinge points of two adjacent limiting blocks and the hook body (5) is the range of rotation angles of the hook body (5). During rotation, the hook body (5) has a storage state that fits against the external mounting surface and a use state that extends out of the external mounting surface.

2. The hook structure as described in claim 1, characterized in that: The hook body (5) includes: The rod (501) is hinged to the external mounting surface. The hook portion (502) is formed at one end of the rod portion (501) away from the hinge end. A snap-fit ​​structure is formed on at least one side of the rod (501), and the snap-fit ​​structure engages with at least one limiting block.

3. The hook structure as described in claim 2, characterized in that: The snap-fit ​​structure includes: The load-bearing part (503) extends from the rod part (501). The deformable part (504) extends from the load-bearing part (503). The load-bearing part (503) and the deformation part (504) are arranged to form a buckle with an opening.

4. The hook structure as described in claim 2, characterized in that: The snap-fit ​​structure is provided on both sides of the rod (501), and each snap-fit ​​structure is engaged with a limit block.

5. The hook structure as described in claim 3, characterized in that: At least one limiting block is formed with a tip (6), and the tip (6) abuts against the deformable part (504) to achieve a fastening; the tip (6) is formed on the external mounting surface, or the tip (6) is deformable with the external mounting surface as the reference surface.

6. The hook structure as described in claim 1, characterized in that: The limiting block group includes a first limiting block (101) and a second limiting block (102), and the central angle formed between the first limiting block (101), the second limiting block (102) and the hinge point of the hook body (5) is 90°.

7. The hook structure as described in claim 1, characterized in that: The installation components include: Stud (2), located on the external mounting surface, serves as the mounting base. A torsion spring (3) is fitted onto the stud (2). The snap ring (4) is fixedly connected to the hook body (5) and sleeved on the stud (2), and is pressed onto the end face of the torsion spring (3) along with the hook body (5).

8. The hook structure as described in claim 7, characterized in that: The torsion spring (3) provides the restoring force for the hook body (5) to return to the stored state.

9. A charger, comprising the hook structure as described in any one of claims 1-8, characterized in that, Any flat sidewall of the charger serves as the mounting surface for the hook structure, which rotates on the flat sidewall of the charger to switch between the usage state and the storage state.

10. The charger as described in claim 9, characterized in that: When the hook body (5) is rotated to the use state, the hook (502) extends beyond the edge contour of the charger; When the hook body (5) is rotated to the storage state, the projection of the hook body (5) on the mounting surface is within the range of the mounting surface.

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