Miniaturized folding charger

Abstract

The utility model provides a kind of miniaturized folding charger, include a body cover and be located in the accommodating space of one printed circuit board group, the circuit board group is equipped with TYPE C female seat.It includes a cover and is equipped on the pivot cover of body cover open end, the upper cover has bottom surface, bottom surface is equipped with a first recess and two second recesses and a spring piece;Two pivots are equipped on ring side wall.Other include a rotating plug, is pivotally equipped in the pivot, rotating plug includes plug shell, two pins and two electronic wires extended to printed circuit board group.The plug shell is covered with a pivot lower cover, it has a pivotable clamping piece on it, the surface of clamping piece has first ridge, multiple recesses and second ridge, the ridge is slid into the recess of upper cover, and positioning cooperation is generated with spring piece, improves folding positioning precision and operation feedback feeling.

Description

Technical Field

[0001] This utility model relates to the field of charging equipment technology, and in particular to a miniaturized foldable charger for a portable charging device with a rotatable plug and a structural positioning mechanism. Background Technology

[0002] In existing technologies, foldable chargers with rotatable plugs are common, primarily designed to allow the plug to fold into the main body for easy storage and portability. However, achieving a fully recessed plug design often requires sacrificing internal space, resulting in a relatively larger overall size, which contradicts the current trend of miniaturization. Furthermore, while some existing technologies feature rotatable plug structures, they lack a robust positioning mechanism, potentially causing the plug to wobble, become unstable, or experience poor contact during rotation, affecting user experience and safety. Therefore, considering the design trade-offs often present between plug storage depth and main body volume in existing foldable charger structures, and the often simplified positioning mechanisms leading to inaccurate plug positioning, structural loosening, and even abnormal contact during pivoting, further improvement and optimization are necessary.

[0003] In view of this, the designer of this project, with extensive experience in related industries, proposed a portable miniaturized foldable charging device that combines a rotatable plug with precise structural positioning. This not only improves structural stability but also reduces size and makes it convenient to use and operate. Utility Model Content

[0004] The purpose of this invention is to provide a miniaturized foldable charger with a rotating plug and a structural positioning mechanism. Furthermore, this invention avoids the requirement that the plug be completely retracted inside the main body, thereby reserving more space for the circuit board and related components, thus achieving the goal of overall miniaturization. Moreover, through the coordinated design of components such as the pivot, groove, protrusion, and spring, the rotating plug can be accurately positioned and firmly fixed during rotation, effectively preventing wobbling and improving structural reliability and safety.

[0005] To achieve the above objectives, this utility model provides a miniaturized foldable charger, characterized in that it comprises:

[0006] A main body cover with a receiving space;

[0007] A printed circuit board assembly having at least one TYPE C female connector, the printed circuit board assembly being disposed in the receiving space of the body cover;

[0008] A rotating shaft cover is provided on the open end of the main body cover to close the open end of the main body cover. The rotating shaft cover has an annular sidewall and a recessed bottom surface located between the annular sidewall. The bottom surface has a first groove and two second grooves.

[0009] A shrapnel is placed on the bottom surface;

[0010] Two rotating shafts are respectively disposed on the side wall of the ring; and

[0011] A rotating plug, pivotally mounted on the two pivots and capable of pivoting relative to the main body cover, includes:

[0012] A plug casing;

[0013] Two pins are located on one side of the plug housing;

[0014] Two electronic wires, one end of which passes through the inside of the plug housing and is electrically connected to the two pins respectively, and the other end of which passes through the two pivots, enters the upper cover of the pivots, and is then electrically connected to the printed circuit board assembly; and

[0015] A pivot cover has a lower cover surface and a fastener placed on one side of the lower cover surface. The lower cover surface covers the open end of the plug housing and closes the open end of the plug housing. The fastener is pivotally mounted on both sides of the pivot. The outer surface of the fastener opposite to the pivot is provided with a first protrusion. The middle position of the fastener has a plurality of recesses that extend intermittently from the upper surface to the lower surface. At least two second protrusions are provided at the two end edges of the outer surface of the fastener and are correspondingly placed on both sides of the plurality of recesses.

[0016] When the rotating plug is pivoted, the first protrusion slides into or out of the first groove; or the at least two second protrusions slide into or out of the two second grooves; or the spring piece slides into or out of the plurality of recesses.

[0017] Preferably, the fastener is composed of a top cover and a bottom groove, forming the integrity of the plurality of recesses extending intermittently and the at least two second protrusions.

[0018] Preferably, the first groove is located on the bottom surface of the upper cover of the rotating shaft on the side away from the rotating shaft, and the two second grooves are located on the bottom surface on the side close to the rotating shaft.

[0019] Preferably, the plurality of recesses on the outer surface of the fastener are arc-shaped recessed structures.

[0020] Preferably, the first groove is a recessed structure provided on the arc surface.

[0021] Preferably, the spring has at least one arc-shaped bend, which is for corresponding sliding into or out of a plurality of equal recesses.

[0022] In summary, this utility model proposes a miniaturized folding charger. Utilizing the coordinated design of the main body cover, hinge, and rotating plug, the plug can rotate and fold relative to the main body. The protrusions on the fasteners engage with the grooves on the hinge cover for positioning, and the sliding structure of the spring contacts provides segmented positioning during plug rotation, preventing wobbling and maintaining stability. Because the rotating plug is not completely embedded in the main body cover, more internal space is reserved for circuit boards and component placement, effectively reducing size and improving portability. Furthermore, the geometrical guide design of the grooves and protrusions, especially the curved concave structure, provides noticeable resistance and tactile feedback when the plug is folded or unfolded, enhancing operational certainty and providing a better user experience. Attached Figure Description

[0023] Figure 1A This is an exploded view of the structure of a preferred embodiment of the present invention.

[0024] Figure 1B This is an exploded view of the preferred embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the first folding configuration of a preferred embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the second folding configuration of a preferred embodiment of the present invention.

[0027] Figure 4 This is a schematic diagram of the third folding configuration of a preferred embodiment of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 1-Miniaturized foldable charger; 10-Main body cover; 100-Accommodation space; 11-Printed circuit board assembly; 110-TYPE C female connector; 12-Hinge top cover; 120-Ring side wall; 121-Bottom surface; 1210-First groove; 1211-Second groove; 13-Spring; 14-Hinge; 15-Rotating plug; 150-Plug housing; 151-Pin; 152-Electronic wire; 153-Hinge bottom cover; 1530-Bottom cover surface; 1531-Fixed fastener; 15310-Top cover; 15311-Bottom groove; 1532-First protrusion; 1533-Recess; 1534-Second protrusion. Detailed Implementation

[0029] To enable those skilled in the art to clearly understand the technical content of this utility model, the following detailed description, in conjunction with the accompanying drawings, is provided. The figures shown are merely illustrative examples to facilitate understanding of the proposed embodiments of this utility model and are not intended to limit the scope of protection of this utility model. In actual application, adjustments may be made flexibly according to product requirements.

[0030] Please see Figures 1A to 4 As shown, these are respectively a structural exploded view of a preferred embodiment of the present invention, a structural exploded view from another perspective, and schematic diagrams of the first to third folding types.

[0031] As shown in the figure, this embodiment provides a miniaturized foldable charger 1, a portable power adapter with a simplified structure and a plug folding and storage mechanism. It includes: a main body cover 10, a printed circuit board assembly 11, a hinge cover 12, a spring contact 13, two hinges 14, and a rotating plug 15. The main body cover 10 forms an accommodating space 100 for storing and protecting the electronic components and mechanical assemblies described later. Further, the printed circuit board assembly 11 is located inside the accommodating space 100, and is mainly used for control and power conversion. It has at least one Type-C female connector 110 for users to connect external electronic devices for power supply. Of course, depending on actual needs, it can also be configured with, for example, two Type-C female connectors 110; one Type-C female connector 110 plus one Type-A female connector; or two Type-C female connectors 110 plus one Type-A female connector; or even combinations of more than a certain number of Type-C female connectors 110 and Type-A female connectors. Alternatively, the printed circuit board assembly 11 can be installed inside the accommodating space 100 by common fixing methods or inter-structural interference fitting, thereby making it less likely to fall off and maintaining a stable position.

[0032] Next, the upper cover 12 of the pivot is used to cover the open end of the main body cover 10, so that the main body cover 10 forms a closed structure to protect the internal electronic components from external dust or impact. The upper cover 12 of the pivot has an annular sidewall 120 around its periphery, and a recessed bottom surface 121 is formed between the annular sidewalls 120. The bottom surface 121 is a functional structure for positioning and engaging the components described later, thereby forming a stable insertion and positioning operating mechanism.

[0033] More specifically, the bottom surface 121 is provided with a first groove 1210 and at least two second grooves 1211, which are used to correspond to different stages of plug rotation. Through engagement and positioning by a mechanism, the switching function between use and storage is realized. Furthermore, a spring piece 13 is provided on the bottom surface 121. The spring piece 13 can be a metal elastic sheet with a certain deformation and recovery capability. Its function is to provide a downward restoring pre-pressure, so that the subsequent fastener can produce a tactile feel and mechanical stability for engaging and disengaging at different rotational positions.

[0034] Furthermore, two opposing pivots 14 are provided on the sidewall 120 of the ring to provide a pivot reference for the rotary plug 15, which will be described later. That is, the rotary plug 15 is pivotally mounted on the two pivots 14, so that the rotary plug 15 can rotate relative to the main body cover 10. Its structure includes: a plug housing 150, which is the housing body that carries the overall plug structure; two pins 151, which are provided on one side of the plug housing 150 for insertion into a socket to obtain power; and two electronic wires 152, one end of which passes through the interior of the plug housing 150 and is electrically connected to the two pins 151 respectively, and the other end extends through the two pivots 14 to the interior of the pivot cover 12, and finally electrically connects to the printed circuit board assembly 11 to complete the power transmission path.

[0035] To ensure the rotary plug 15 is structurally enclosed and prevents internal electronic wires from being exposed, the open end of the plug housing 150 is sealed by a lower cover 153. The lower cover 153 has: a lower cover surface 1530 covering the end face of the plug housing 150; and a locking member 1531 located on one side of the lower cover surface 1530, which is a component pivotally mounted relative to the two pivots 14 to provide a locking and positioning function. The locking member 1531 is pivotally mounted to the pivots 14 on both sides, and a first protrusion 1532 is provided on the outer surface of the other side of the locking member 1531 that is pivotally mounted relative to the two pivots 14. The first protrusion 1532 slides into or disengages from the first groove 1210 provided on the bottom surface 121, thereby achieving locking and positioning during the pivoting of the rotary plug 15. Preferably, in one embodiment, the lower cover 1530 may be designed with an opening, allowing the two electron wires 152 to pass through the opening into the internal space of the lower cover 153, then through the two rotating shafts 14, and into the upper cover 12. Figure 1A and Figure 1B In the diagram, the two electronic lines 152 are shown in their final state after being bent and extended, so that they can be electrically connected to the printed circuit board assembly 11.

[0036] Furthermore, the fastener 1531 has a plurality of recesses 1533 extending from the upper surface to the lower surface at its middle position, and at least two second protrusions 1534 are provided at the two end edges of the outer surface of the fastener 1531, corresponding to the sides of the plurality of recesses 1533. The at least two second protrusions 1534 are for correspondingly sliding into or out of the at least two second grooves 1211 on the bottom surface 121 to form a multi-stage positioning or blocking mechanism; the spring piece 13 can be correspondingly sliding into or out of the plurality of recesses 1533, further improving the operating damping and stability of the rotary plug 15 during rotation. The spring piece 13 may have at least one arc-shaped bending section, and the arc-shaped bending section is for correspondingly sliding into or out of the plurality of recesses 1533, thereby providing better feedback to the user's operating feel.

[0037] In summary, when the user applies force to rotate the rotating plug 15, the first protrusion 1532 on the locking device 1531 can slide into or out of the first groove 1210 to achieve a positioning function. Simultaneously, the at least two second protrusions 1534 can selectively slide into or out of the at least two second grooves 1211 during rotation, achieving another operating state of the rotating plug 15. Furthermore, the spring piece 13 can elastically slide into or out of the plurality of recesses 1533 provided in the locking device 1531 to provide multiple locking points and tactile feedback, further enhancing the overall user experience and structural stability. For a better understanding of the structural state of the miniaturized foldable charger 1 in different folding configurations, please refer to [reference needed]. Figures 2 to 4 As shown, it presents the structural appearance of the miniaturized foldable charger 1 in various folding modes.

[0038] Furthermore, regarding the details of the fastener 1531 of the lower cover 153 of the pivot, its structure can be composed of an upper cover 15310 and a lower groove 15311. The upper cover 15310 is the external exposed surface, and has positioning features for the at least two second protrusions 1534 and the plurality of recesses 1533. The lower groove 15311 also has positioning features for the at least two second protrusions 1534 and the plurality of recesses 1533, and provides internal support within the accommodating space 100. Accordingly, through the assembly of the upper and lower structures, the overall fastener 1531 can form a configuration of the plurality of recesses 1533 and the at least two second protrusions 1534 with intermittently extending arrangement characteristics, thereby strengthening the integrity of its engagement and sliding fit with the bottom surface 121 of the upper cover 12 of the pivot.

[0039] Furthermore, one side of the bottom surface 121 of the top cover 12 of the pivot has a slightly curved concave structure. A first groove 1210 is provided on the side away from the pivot 14, while at least two second grooves 1211 are provided on the side closer to the pivot 14. This configuration facilitates the two-stage positioning design of the rotating plug 15 during the unfolding and retracting phases. Moreover, the first groove 1210 can be located on the curved surface of the bottom surface 121 of the top cover 12 of the pivot, and is an inwardly concave curved structure. This structure allows the first protrusion 1532 of the fastener 1531 to accurately slide into the curved groove, thereby providing stronger positioning stability and precise alignment, ensuring that the plug does not come off the locking point due to shaking during use, and providing better tactile feedback. In short, the first groove 1210 is used to cooperate with the first protrusion 1532 of the fastener 1531 to form a stable positioning point; and the at least two second grooves 1211 are used to cooperate with the at least two second protrusions 1534 of the fastener 1531 to form another stable positioning point.

[0040] To enhance the tactile feedback during operation, the plurality of recesses 1533 on the outer surface of the locking device 1531 can be designed as arc-shaped recesses. The arc-shaped chamfer design not only improves the smoothness of the spring piece 13 entering and exiting the plurality of recesses 1533 during rotation, but also helps to provide an appropriate contact area and spring pressure, making the locking stable and tactile feedback, and avoiding abrupt jumping or loosening.

[0041] In summary, the miniaturized folding charger proposed in this invention utilizes the coordinated design of components such as the main body cover, the upper cover of the hinge, the hinge, the rotating plug, and the lower cover of the hinge. This allows the rotating plug to rotate and fold relative to the main body, with the protrusions on the outer surface of the fasteners precisely positioned by sliding into the grooves on the bottom surface of the upper cover of the hinge. Furthermore, the sliding and disengaging action of the spring contacts within the recesses provides segmented positioning during the rotation of the rotating plug, ensuring its stability during unfolding or folding and preventing displacement or wobbling. This invention further enhances assembly convenience and mold manufacturing efficiency through the modular design of the fastener structure. Moreover, the rotating plug is not necessarily completely embedded in the main body cover, thus retaining more internal space for the circuit board assembly and other necessary components, effectively reducing the overall structural volume, improving portability, and avoiding the design limitations of traditional structures that require increased thickness to accommodate the rotating plug. Furthermore, the grooves and protrusions of this invention feature a geometrically guided correspondence, with the recessed portion being a curved surface structure. When the spring slides into or out of this curved surface, it generates clear locking or releasing resistance, providing tactile feedback for pressing and switching. This allows users to clearly feel the assistance and tactile feedback provided by the angle segment switching when the rotary plug is folded or unfolded, further enhancing the overall user experience and operational certainty. Therefore, this invention not only fulfills the basic requirement of a rotary plug being rotatable and retractable, but also achieves multiple benefits such as miniaturization, precise structural positioning, convenient module assembly, and intuitive operational feedback, demonstrating high innovative and practical value.

[0042] The above description is merely an illustration of the preferred embodiments in the specification of this utility model, and should not be used to limit the scope of the utility model based on the content of these embodiments; therefore, any textual changes or modifications made without departing from the equivalent scope of this utility model should still be covered within the protection scope of this utility model.

Claims

1. A miniaturized foldable charger, characterized in that, Include: A main body cover with a receiving space; A printed circuit board assembly having at least one TYPE C female connector, the printed circuit board assembly being disposed in the receiving space of the body cover; A rotating shaft cover is provided on the open end of the main body cover to close the open end of the main body cover. The rotating shaft cover has an annular sidewall and a recessed bottom surface located between the annular sidewall. The bottom surface has a first groove and two second grooves. A shrapnel is placed on the bottom surface; Two rotating shafts are respectively disposed on the side wall of the ring; and A rotating plug, pivotally mounted on the two pivots and capable of pivoting relative to the main body cover, includes: A plug casing; Two pins are located on one side of the plug housing; Two electronic wires, one end of which passes through the inside of the plug housing and is electrically connected to the two pins respectively, and the other end of which passes through the two pivots, enters the upper cover of the pivots, and is then electrically connected to the printed circuit board assembly; and A pivot cover has a lower cover surface and a fastener placed on one side of the lower cover surface. The lower cover surface covers the open end of the plug housing and closes the open end of the plug housing. The fastener is pivotally mounted on both sides of the pivot. The outer surface of the fastener opposite to the pivot is provided with a first protrusion. The middle position of the fastener has a plurality of recesses that extend intermittently from the upper surface to the lower surface. At least two second protrusions are provided at the two end edges of the outer surface of the fastener and are correspondingly placed on both sides of the plurality of recesses. When the rotating plug is pivoted, the first protrusion slides into or out of the first groove; or the at least two second protrusions slide into or out of the two second grooves; or the spring piece slides into or out of the plurality of recesses.

2. The miniaturized foldable charger as described in claim 1, characterized in that, The fastener is composed of a top cover and a bottom groove, forming the integrity of the plurality of recesses that extend intermittently and the at least two second protrusions.

3. The miniaturized foldable charger as described in claim 2, characterized in that, The first groove is located on the bottom surface of the upper cover of the rotating shaft on the side away from the rotating shaft, and the two second grooves are located on the bottom surface on the side close to the rotating shaft.

4. The miniaturized foldable charger as described in claim 3, characterized in that, The plurality of recesses on the outer surface of the fastener are arc-shaped recessed structures.

5. The miniaturized foldable charger as described in claim 4, characterized in that, The first groove is a recessed structure located on the curved surface.

6. The miniaturized foldable charger as described in claim 5, characterized in that, The shrapnel has at least one arc-shaped bend, which is designed to slide into or out of a plurality of equal recesses.

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