Folding plug device, charger and power bank with plug

Abstract

This utility model relates to a folding plug device, a charger, and a power bank with a plug. The folding plug device includes a housing, a plug assembly, and a deformation limiting plate. The housing has a plug mounting groove, in which the plug assembly is rotatably mounted via a pivot. The deformation limiting plate is made of a highly elastic metal sheet or other highly elastic material and is fixed inside the housing. The pivot end of the plug assembly has a right-angled portion, with its two right-angled surfaces corresponding to the unfolded and folded states, respectively. When the plug assembly rotates to the unfolded or folded position, the corresponding right-angled surfaces of the right-angled portion are flush with the first flat surface of the elastic protrusion in the middle of the deformation limiting plate. The continuous rebound force generated by the deformation limiting plate under pressure forms a self-locking mechanism, ensuring stable fixation in both states. This structure eliminates the traditional spring clips and locking mechanisms, achieving an ultra-thin design through elastic deformation mechanical locking. When the plug assembly is folded, the body is flush with the surface of the housing, and an insulating isolation block is provided between the positive and negative plugs.

Description

Technical Field

[0001] This utility model relates to the field of electronic device charging technology, and in particular to a compact folding plug device with bidirectional self-locking function, as well as a charger and power bank integrating the device. Background Technology

[0002] With the widespread use of portable electronic devices, chargers and power banks with integrated charging plugs have become daily necessities. To improve portability and storage efficiency, folding plug designs are widely adopted. However, existing folding plug technologies mostly rely on spring clips, locking mechanisms, or magnetic structures to secure the unfolded / folded state. These structures often require a large internal space to accommodate the hinge and locking mechanism, leading to an increase in the overall thickness of the device. Therefore, there is an urgent need for a compact, reliable, dual-state self-locking folding plug solution. Utility Model Content

[0003] The purpose of this invention is to provide a folding plug device, charger, and power bank with a plug, to solve the problems of complex structure and large space occupation of existing folding plugs. The two right-angled surfaces of the right-angle portion, in contact with the deformation limiting piece, correspond to the unfolded and folded states of the plug assembly, respectively. During the rotation of the plug assembly, the deformation limiting piece is compressed and deformed, generating a rebound force to ensure the plug assembly is stably locked in either the unfolded or folded state. The structure is compact and the dual-state self-locking is reliable.

[0004] To achieve the above objectives, this utility model provides a folding plug device, comprising:

[0005] The housing is provided with a plug mounting slot;

[0006] A plug assembly, which is rotatably disposed within the plug mounting slot;

[0007] A deformation limiting piece is disposed inside the housing;

[0008] The plug assembly includes a first rotating shaft, and the inner wall of the plug mounting slot is provided with a first rotating groove. The first rotating shaft is rotatably connected to the first rotating groove and extends from the first rotating groove into the interior of the housing.

[0009] The first rotating groove has a right-angled part at its end, which elastically abuts against the deformation limiting piece. The two right-angled surfaces of the right-angled part are flat against the deformation limiting piece, respectively corresponding to the unfolded and folded states of the plug assembly. During the rotation of the plug assembly, the right-angled side of the right-angled part will force the deformation limiting piece to deform further.

[0010] Furthermore, as a more preferred embodiment of this utility model, the deformation limiting piece includes:

[0011] The deformable sheet body has two ends connected to the inner wall of the housing by fasteners; the deformable sheet body has an elastic protrusion in the middle, which contacts the right-angled part, and the elastic protrusion has a first flat part that can be flat against the two right-angled surfaces of the right-angled part.

[0012] Furthermore, as a more preferred embodiment of this utility model, the plug assembly further includes:

[0013] The main body, wherein the first rotating shaft is disposed on one side of the main body;

[0014] A second rotating shaft is disposed on the other side of the main body, and the second rotating shaft is coaxially disposed with the first rotating shaft.

[0015] A positive plug and a negative plug are provided, one end of which is fixed to one end of the main body, and the positive plug and the negative plug are arranged in parallel. A wire channel is provided inside the second rotating shaft, and the wire channel extends into the interior of the main body. The wires of the positive plug and the negative plug are connected to the circuit board outside the main body through the wire channel.

[0016] Furthermore, as a more preferred embodiment of the present invention, the plug mounting groove is recessed into the surface of the housing, and the surface of the body is approximately flush with the surface of the housing.

[0017] Furthermore, as a more preferred embodiment of this utility model, an isolation block is provided between the positive plug and the negative plug. The isolation block is made of insulating material, and the surface of the isolation block is approximately flush with the surface of the housing.

[0018] Furthermore, as a more preferred embodiment of the present invention, the ends of the positive plug and the negative plug extend beyond one end of the housing, so that the user can lift the ends of the positive plug or the negative plug to unfold the plug assembly.

[0019] Furthermore, as a more preferred embodiment of the present invention, the two ends of the deformation limiting piece are respectively provided with a second flat portion, and the inside of the housing is provided with a pad that is adapted to the second flat portion. The pad is provided with a threaded hole, and the second flat portion can fit against the surface of the pad under the pre-tightening action of the fastener.

[0020] Furthermore, as a more preferred embodiment of the present invention, the plug assembly further includes a synchronous insulating rod, the two ends of which are respectively fixed to the positive plug and the negative plug, and are integrally formed inside the housing.

[0021] Based on the same inventive concept, this utility model also provides a charger, including the folding plug device as described above and a first main control circuit board. The first main control circuit board is disposed inside the housing and is electrically connected to the folding plug device through a wire. The first main control circuit board integrates a main control chip, which is used to regulate and control the current and voltage of the folding plug device. The first main control circuit board is connected to an external electrical device through a wire.

[0022] Based on the same inventive concept, this utility model also provides a power bank with a plug, comprising:

[0023] Such as the folding plug device described above;

[0024] The second main control circuit board is located inside the housing and is electrically connected to the folding plug device via wires; the second main control circuit board integrates a charging management chip for regulating current and voltage;

[0025] A storage battery, which is disposed inside the casing and connected to the second main control circuit board via wires;

[0026] The charging output interface is embedded in the surface of the housing and connected to the second main control circuit board, and is electrically connected to the charging management chip. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0028] Figure 1 This is a cross-sectional perspective view of the folding plug device in this embodiment.

[0029] Figure 2 This is a three-dimensional structural diagram of the plug assembly and deformation limiting piece in this embodiment.

[0030] Figure 3 This is a schematic diagram of the plug assembly in this embodiment unfolded to a 45-degree angle.

[0031] Figure 4 This is a three-dimensional structural diagram of the plug assembly in the folded state according to this embodiment.

[0032] Figure 5 This is a three-dimensional structural diagram of the deformation limiting piece connected to the right-angle portion inside the housing in this embodiment.

[0033] Figure label:

[0034] 100-Housing, 110-Plug mounting slot, 120-First rotating slot, 130-Right angle portion, 140-Padded block;

[0035] 200-Plug assembly, 210-First pivot, 220-Body, 230-Second pivot, 240-Positive plug, 250-Negative plug, 260-Wire channel, 270-Isolation block, 280-Synchronous insulating rod;

[0036] 300 - Deformation limiting piece, 310 - Deformation piece body, 320 - Elastic protrusion, 330 - First planar part, 340 - Second planar part. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0039] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 application and simplifying the description, and do not indicate or imply that the device or component 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 application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0041] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0042] Example

[0043] This embodiment aims to address the shortcomings of existing folding plug technologies, which often rely on spring clips, locking mechanisms, or magnetic structures to maintain the unfolded / folded state. Such structures, due to the need to accommodate the pivot and locking mechanism, typically require a large internal space within the housing 100, resulting in an increase in the overall thickness of the device. Therefore, referring to… Figure 1-5 As shown, this embodiment provides a folding plug device, a charger, and a power bank with a plug to solve the problems of complex structure and large space occupation of existing folding plugs. The two right-angled surfaces of the right-angle portion 130 are in contact with the deformation limiting piece 300, corresponding to the unfolded and folded states of the plug assembly 200, respectively. During the rotation of the plug assembly 200, the deformation limiting piece 300 is compressed and deformed, generating a rebound force to ensure that the plug assembly 200 is stably locked in the unfolded or folded state. The structure is compact and the dual-state self-locking is reliable.

[0044] Reference Figure 1 , 2 As shown in Figure 5, a folding plug device includes a housing 100, a plug assembly 200, and a deformation limiting piece 300. The housing 100 has a plug mounting groove 110; the plug assembly 200 is rotatably disposed within the plug mounting groove 110; the deformation limiting piece 300 is disposed inside the housing 100. The deformation limiting piece 300 is made of a highly elastic metal sheet or other highly elastic material, providing a stable rebound force when the plug assembly 200 rotates, ensuring its stability in both unfolded and folded states. Simultaneously, the deformation limiting piece 300 can be a long strip of elastic sheet, with both ends raised to create space for elastic deformation in the middle. The design of the deformation limiting piece 300 optimizes space utilization, reduces the thickness of the housing 100, and improves portability.

[0045] Reference Figure 2 As shown, the plug assembly 200 includes a first rotating shaft 210, and the inner wall of the plug mounting groove 110 is provided with a first rotating groove 120. The first rotating shaft 210 is rotatably connected to the first rotating groove 120 and extends from the first rotating groove 120 into the interior of the housing 100.

[0046] The end of the first rotating groove 120 is provided with a right-angle portion 130, which elastically abuts against the deformation limiting piece 300. The two right-angled surfaces of the right-angled portion 130, when flat against the deformation limiting piece 300, correspond to the unfolded and folded states of the plug assembly 200, respectively. During the rotation of the plug assembly 200, the right-angled edges of the right-angled portion 130 force the deformation limiting piece 300 to further deform. For example, the first rotating shaft 210 adopts a cylindrical structure with a smooth surface to reduce frictional resistance and ensure smooth rotation. It is also made of insulating material to improve safety. The right-angled portion 130 can be made of metal, with one end integrally injection molded into the first rotating shaft 210 and the other end in close contact with the deformation limiting piece 300 to enhance structural stability.

[0047] Reference Figure 2 As shown, when the plug assembly 200 is fully extended to the use position, the first right-angled surface of the right-angle portion 130 remains flat against the deformation limiting piece 300. At this time, the elastic force generated by the elastic deformation of the deformation limiting piece 300 is continuously applied to the first right-angled surface, forming a stable self-locking force and effectively preventing the plug assembly 200 from accidentally folding back. Correspondingly, when the plug assembly 200 is folded for storage, the second right-angled surface of the right-angle portion 130 is flat against the deformation limiting piece 300, and the deformation limiting piece 300 also acts on the second right-angled surface through its elastic force, ensuring that the plug assembly 200 is securely held in the folded position. This structural design allows the deformation limiting piece 300 and the right-angle portion 130 to work together, utilizing the mechanical locking effect generated by elastic deformation to achieve a reliable self-locking function at both the extended and folded positions of the plug assembly 200. During the rotation process, the elastic deformation of the deformation limiting piece 300 and the right-angle side of the right-angle portion 130 are always in contact, and the rebound force always causes the plug assembly 200 to fold or unfold.

[0048] Reference Figure 1 and 2 As shown, in some embodiments, the deformable limiting piece 300 includes a deformable piece body 310.

[0049] Both ends of the deformable sheet body 310 are connected to the inner wall of the housing 100 by fasteners; the deformable sheet body 310 has an elastic protrusion 320 in the middle, the elastic protrusion 320 contacts the right angle portion 130, the elastic protrusion 320 is provided with a first flat portion 330, the first flat portion 330 can be flat against the two right angle surfaces of the right angle portion 130 respectively.

[0050] When the first flat surface 330 is flush with the first right-angled surface of the right-angled portion 130, the elastic protrusion 320 undergoes elastic deformation due to pressure, and its rebound force acts on the first right-angled surface, achieving self-locking of the plug assembly 200 in the unfolded position. When the plug assembly 200 is folded, the first flat surface 330 turns to flush with the second right-angled surface, and the elastic protrusion 320 again acts on the second right-angled surface through its rebound force, maintaining the stability of the plug assembly 200 in the folded state. This design not only ensures the stability of the plug assembly 200 in different states, but also simplifies the complexity of the self-locking structure through the setting of the elastic protrusion 320, improving the reliability and durability of the product. The elastic protrusion 320 increases the deformation amplitude and rebound force, making the self-locking effect more significant. At the same time, the design of the fasteners ensures a firm connection between the deformation limiting piece 300 and the housing 100, further improving the stability of the overall structure. The fasteners can use common fastening methods such as bolts or screws, facilitating installation and disassembly.

[0051] Reference Figure 1 As shown, in some embodiments, the plug assembly 200 further includes a body 220, a second pivot 230, a positive plug 240, and a negative plug 250.

[0052] A first rotating shaft 210 is provided on one side of the main body 220; a second rotating shaft 230 is provided on the other side of the main body 220, and the second rotating shaft 230 rotates coaxially with the first rotating shaft 210; one end of the positive plug 240 and the negative plug 250 are respectively fixed to one end of the main body 220, and the positive plug 240 and the negative plug 250 are arranged in parallel; a wire channel 260 is provided inside the second rotating shaft 230, and the wire channel 260 extends into the interior of the main body 220; the wires of the positive plug 240 and the negative plug 250 are connected to the circuit board outside the main body 220 through the wire channel 260.

[0053] This design ensures that the positive plug 240 and negative plug 250 maintain a stable connection to the circuit board even when the plug assembly 200 is folded or unfolded. The wire channel 260 not only protects the wires from environmental damage but also ensures smooth current transmission. Furthermore, because the second pivot 230 rotates coaxially with the first pivot 210, the movement of the plug assembly 200 during folding or unfolding is smoother, reducing potential damage to the wires or plug caused by unstable movement. In addition, the parallel arrangement of the positive plug 240 and negative plug 250 makes insertion and removal of the plug assembly 200 more convenient, improving the user experience. Overall, this design, through a reasonable structural layout, achieves a dual improvement in the stability and ease of use of the plug assembly 200.

[0054] Reference Figure 4 and 5As shown, in some embodiments, the plug mounting slot 110 is recessed within the surface of the housing 100, and the surface of the body 220 is approximately flush with the surface of the housing 100. This not only makes the overall design aesthetically pleasing but also effectively protects the plug assembly 200 from external environmental influences. The recessed design of the plug mounting slot 110 allows the plug assembly 200 to be perfectly embedded when not in use, avoiding the safety risks that may arise from an exposed plug. Simultaneously, the approximately flush surface of the body 220 with the housing 100 makes the charger or power bank appear smoother and less obtrusive, enhancing the overall texture and aesthetics of the product. Furthermore, this design helps reduce accidental impacts or damage to the plug during carrying or storage, extending the product's lifespan.

[0055] Reference Figure 1 and 3 As shown, in some embodiments, an insulating block 270 is provided between the positive plug 240 and the negative plug 250. The insulating block 270 is made of insulating material, and its surface is approximately flush with the surface of the housing 100. In the folded state, it effectively isolates the positive plug 240 and the negative plug 250, avoiding the risk of short circuits due to accidental contact and further improving product safety. The design of the insulating block 270 not only considers safety but also aesthetics; its surface is approximately flush with the surface of the housing 100, making the overall appearance more streamlined and harmonious. At the same time, the insulating block 270 is made of insulating material, ensuring its stability and reliability during long-term use, providing users with a more reassuring user experience.

[0056] Reference Figure 4 As shown, in some embodiments, the ends of the positive plug 240 and the negative plug 250 extend slightly beyond one end of the housing 100, allowing the user to lift the ends of the positive plug 240 or the negative plug 250 with their fingernail to unfold the plug assembly 200. This slightly extended plug end design also takes ergonomics into account, making it easier and more comfortable for the user to unfold the plug, thus improving ease of use and comfort.

[0057] Reference Figure 2As shown, in some embodiments, the deformation limiting piece 300 has second flat portions 340 at both ends, and the housing 100 has a pad 140 adapted to the second flat portions 340 inside. The pad 140 has threaded holes, and the second flat portions 340 can fit against the surface of the pad 140 under the pre-tightening action of the fasteners. This design not only enhances the stability of the deformation limiting piece 300, preventing accidental movement or deformation during the use of the power bank, but also ensures a firm connection between the plug assembly 200 and the housing 100. In addition, the threaded holes on the pad 140 not only facilitate the installation and removal of fasteners, but also provide convenience for later maintenance and replacement.

[0058] Reference Figure 1 As shown, in some embodiments, the plug assembly 200 further includes a synchronization insulating rod 280, with its two ends fixed to the positive plug 240 and the negative plug 250 respectively, and integrally formed inside the housing 100. The synchronization insulating rod 280 is made of a highly elastic material to ensure that the positive and negative plugs 250 move synchronously during insertion and removal, avoiding poor contact or damage caused by asynchrony.

[0059] This embodiment also provides a charger, including a folding plug device as described above and a first main control circuit board. The first main control circuit board is disposed inside the housing 100 and is electrically connected to the folding plug device via wires. The first main control circuit board integrates a main control chip, which is used to regulate and control the current and voltage of the folding plug device. The first main control circuit board is connected to an external electrical device via wires. This charger has a compact design, and the folding plug device can be easily stored when not in use, greatly saving space and making it easy to carry and use. For example, as shown... Figure 1 and 3 As shown, the folding plug device includes, but is not limited to, using a European standard plug assembly. The shape and arrangement of its positive plug 240 and negative plug 250 conform to European standards, facilitating use in Europe. Simultaneously, the synchronous insulating rod 280 design of this European standard plug assembly also ensures synchronization during insertion and removal, guaranteeing safety and reliability. Furthermore, when stored, the folding plug device fits snugly into the casing 100 of the power bank or charger without adding extra volume, making the overall design more compact and portable.

[0060] This embodiment also provides a power bank with a plug, including: a folding plug device as described above, a second main control circuit board, a battery, and a charging output interface. The second main control circuit board is disposed inside the housing 100 and is electrically connected to the folding plug device via wires; the second main control circuit board integrates a charging management chip for regulating current and voltage; the battery is disposed inside the housing 100 and is connected to the second main control circuit board via wires; the charging output interface is embedded on the surface of the housing 100 and is connected to the second main control circuit board and electrically connected to the charging management chip. This power bank is designed with practicality and portability in mind. The folding plug device not only facilitates storage but also ensures stable power supply during use. The charging management chip on the second main control circuit board can intelligently regulate current and voltage, effectively protecting the power bank and charging devices. The battery provides ample energy reserves, ensuring the power bank can provide power for extended periods. The charging output interface allows users to connect various charging devices and is electrically connected to the charging management chip, further improving charging efficiency and safety. Overall, this power bank with a plug has a compact structure, comprehensive functions, and is a highly practical and portable charging device. The charging output interface can be of various types, such as USB-A, USB-C, or Lightning. The battery can be a lithium-ion battery, a polymer battery, etc.

[0061] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A folding plug arrangement, characterized by include: The housing is provided with a plug mounting slot; A plug assembly, which is rotatably disposed within the plug mounting slot; A deformation limiting piece is disposed inside the housing; The plug assembly includes a first rotating shaft, and the inner wall of the plug mounting slot is provided with a first rotating groove. The first rotating shaft is rotatably connected to the first rotating groove and extends from the first rotating groove into the interior of the housing. The first rotating groove has a right-angled part at its end, which elastically abuts against the deformation limiting piece. The two right-angled surfaces of the right-angled part are flat against the deformation limiting piece, respectively corresponding to the unfolded and folded states of the plug assembly. During the rotation of the plug assembly, the right-angled side of the right-angled part will force the deformation limiting piece to deform further.

2. The folding plug arrangement of claim 1, wherein, The deformation limiting piece includes: The deformable sheet body has two ends connected to the inner wall of the housing by fasteners; the deformable sheet body has an elastic protrusion in the middle, which contacts the right-angled part, and the elastic protrusion has a first flat part that can be flat against the two right-angled surfaces of the right-angled part.

3. The folded plug arrangement of claim 2, wherein, The plug assembly also includes: The main body, wherein the first rotating shaft is disposed on one side of the main body; A second rotating shaft is disposed on the other side of the main body, and the second rotating shaft is coaxially disposed with the first rotating shaft. A positive plug and a negative plug are provided, one end of which is fixed to one end of the main body, and the positive plug and the negative plug are arranged in parallel. A wire channel is provided inside the second rotating shaft, and the wire channel extends into the interior of the main body. The wires of the positive plug and the negative plug are connected to the circuit board outside the main body through the wire channel.

4. The folded plug arrangement of claim 3, wherein, The plug mounting slot is recessed into the surface of the housing, and the surface of the body is approximately flush with the surface of the housing.

5. The folded plug arrangement of claim 4, wherein, An isolation block is provided between the positive plug and the negative plug. The isolation block is made of insulating material and its surface is approximately flush with the surface of the housing.

6. The folded plug arrangement of claim 3, wherein, The ends of the positive plug and the negative plug extend out of one end of the housing, allowing the user to lift the ends of the positive plug or the negative plug to unfold the plug assembly.

7. The folded plug arrangement of claim 2, wherein, The deformation limiting piece is provided with a second flat portion at both ends. The housing is provided with a pad that is adapted to the second flat portion. The pad is provided with a threaded hole. Under the pre-tightening action of the fastener, the second flat portion can fit against the surface of the pad.

8. The folded plug arrangement of claim 3, wherein, The plug assembly also includes a synchronous insulating rod, the two ends of which are fixed to the positive plug and the negative plug respectively, and are integrally formed inside the housing.

9. A charger characterized by comprising: The device includes a folding plug device as described in any one of claims 1-8 and a first main control circuit board. The first main control circuit board is disposed inside the housing and is electrically connected to the folding plug device via a wire. The first main control circuit board integrates a main control chip, which is used to adjust and control the current and voltage of the folding plug device. The first main control circuit board is connected to an external electrical device via a wire.

10. A power bank with plug, characterized in that, include: The folding plug device according to any one of claims 1-8; A second main control circuit board is arranged in the shell and electrically connected to the folding plug device through a wire; the second main control circuit board is integrated with a charging management chip for adjusting current and voltage; A storage battery is arranged in the shell and connected to the second main control circuit board through a wire; A charging output interface is embedded on the surface of the shell and connected to the second main control circuit board and the charging management chip.

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