Foldable plug

Abstract

The utility model discloses a foldable plug, which comprises a plug seat, a circuit board, a first pin, a second pin and a third pin, the circuit board is arranged in the plug seat, one end of the first pin and one end of the second pin are embedded in the plug seat and are electrically connected with the circuit board, and the other end of the first pin and the other end of the second pin extend out of the plug seat. And the third pin is rotatably connected to the plug seat, so that the third pin can rotate relative to the plug seat to be in a folded or unfolded state. According to the foldable plug provided by the utility model, a rotatable folding structure is designed between the third pin of the plug and the plug seat, the third pin is unfolded when in use, the third pin is rotatably folded and stored in the storage groove when not in use, the foldable design can reduce the size of the plug, and the foldable plug is convenient to carry, transport or store.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a foldable plug. Background Art

[0002] A plug is a common electrical connector that can conveniently transfer and output the mains electricity. The existing British standard plug has a three-pin structure, which is generally large in size, inconvenient to carry, and occupies a large space for transportation or storage. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a foldable plug to solve the technical problems that the prior plug is large in size and inconvenient to carry.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides a foldable plug, which includes: a plug socket, a circuit board, a first pin, a second pin and a third pin, wherein the circuit board is arranged in the plug socket, one end of the first pin and the second pin is buried in the plug socket and is electrically connected to the circuit board, and the other end extends out of the plug socket, and the third pin is rotatably connected to the plug socket, so that the third pin can be rotated relative to the plug socket to be in a folded or unfolded state.

[0006] Among them, the plug socket has a plug-in end face, the first pin and the second pin are distributed in the length direction of the plug-in end face, the third pin is distributed in a triangle with the first pin and the second pin in the unfolded state, and the rotation direction of the third pin relative to the plug socket is parallel to the plug-in end face.

[0007] Among them, a transversely extending storage groove is also provided on the plug-in end surface, and the third pin includes: a pin portion and a rotating portion vertically bent at one end of the pin portion, one end of the rotating portion is rotatably connected to the storage groove, and when the third pin is in a stored state, the rotating portion is stored in the storage groove.

[0008] Wherein, a notch is further provided on a side wall of the receiving groove close to the plug-in end face, and when the third plug pin is in the receiving state, the plug-in portion extends out of the notch so that the third plug pin does not exceed the outer edge of the plug socket.

[0009] Among them, a conductive spring sheet is also embedded in the plug socket, and the conductive spring sheet includes a fixed portion parallel to the line connecting the first pin and the second pin, and an elastic portion bent from one end of the fixed portion to the side of the third pin, and one end of the third pin abuts against the surface of the conductive spring sheet.

[0010] Wherein, when the third plug pin is in an unfolded state, one end of the third plug pin abuts against a bending angle between the fixing portion and the elastic portion.

[0011] Therein, a fixing plate is embedded in the plug socket, and the fixing plate is located behind the conductive spring sheet. A transfer shaft is provided on the fixing plate, and one end of the third plug pin is rotatably connected to the transfer shaft.

[0012] Among them, the plug socket includes: a shell with a cavity inside and an opening at the front end, and a connecting plate connected to the front end opening of the shell, the fixing plate is fixedly connected to the back of the connecting plate, and the first pin, the second pin and the third pin are all inserted into the connecting plate.

[0013] The outer side surface of the connecting plate is the plug-in end surface, and the connecting plate is further provided with two insulating sleeves protruding from the plug-in end surface, and the first plug pin and the second plug pin are respectively plugged into the insulating sleeves.

[0014] Wherein, the circuit board is also provided with two electrical connection buckles and an output interface component, and the first pin and the second pin are respectively connected to the electrical connection buckles.

[0015] The foldable plug of the utility model is designed with a rotatable foldable structure between the third pin of the plug and the plug socket. When in use, the third pin is unfolded, and when not in use, it is rotated and folded and stored in the storage groove. The foldable design can reduce the size of the plug, making it easy to carry, transport or store.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figures 1 to 4 Schematic diagram of the overall structure of the foldable plug from different perspectives of an embodiment of the utility model.

[0018] Figure 5 This is an exploded view of the foldable plug according to an embodiment of the utility model.

[0019] Figure 6 and Figure 7 This is a schematic structural diagram of the foldable plug of the embodiment of the utility model with the plug seat portion removed from different viewing angles.

[0020] Figure 8 This is a schematic structural diagram of the foldable plug without the shell part according to an embodiment of the utility model.

[0021] Fig. 9 and Fig.10 Schematic diagram of the structure of the connecting plate part of the foldable plug according to the embodiment of the utility model from different viewing angles.

[0022] Fig.11 This is a schematic structural diagram of the third pin portion of the foldable plug according to an embodiment of the utility model.

[0023] Fig.12 The figure is a schematic diagram of the structure of the fixing plate part of the foldable plug according to the embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "resin", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] See also Figures 1 to 12 The present embodiment provides a foldable plug 100, which includes: a plug socket, a circuit board 3, a first pin 4, a second pin 5 and a third pin 6. The circuit board 3 is arranged in the plug socket, one end of the first pin 4 and the second pin 5 is buried in the plug socket and is electrically connected to the circuit board 3, and the other end extends out of the plug socket. The third pin 6 is rotatably connected to the plug socket, so that the third pin 6 can be rotated relative to the plug socket to be folded or unfolded. Specifically, a switching mechanism 7 for controlling the state switching of the third pin 6 is also provided in the plug socket. In the present embodiment, the plug socket includes: a housing 1 and a connecting plate 2 connected to the front end opening of the housing 1. The foldable plug 100 is designed to have a rotatable foldable structure between the third pin 6 and the plug socket. When not in use, the third pin 6 can be stored in the plug socket, thereby reducing the volume and being easy to carry.

[0032] It should be noted that the foldable plug 100 of this embodiment is a British standard plug, that is, a plug that complies with the British standard ZYH-B20. Of course, it is understandable that the foldable plug can also be used for national standard plugs, etc.

[0033] The plug socket has a plug end face 10, the first pin 4 and the second pin 5 are distributed along the length direction of the plug end face 10, the third pin 6 is distributed in a triangle with the first pin 4 and the second pin 5 in the unfolded state, and the third pin 6 is rotated relative to the plug socket in a direction parallel to the plug end face 10. Figure 1 As shown, the plug socket is in the shape of a rectangular parallelepiped as a whole, and the plug end surface 10 is located on a smaller rectangular surface, that is, the folding direction of the third pin 6 is the direction of rotation with respect to the length direction of the housing 1. The advantage of this rotation direction design is that when the third pin 6 is folded, the size of the entire foldable plug 100 is roughly the same as that of a double-pin plug, and its outer dimensions are greatly reduced in the folded state, and the miniaturization is more obvious.

[0034] It should be noted that, according to different control modes of the circuit board 3, the foldable socket can also realize the switching of three-pin and two-pin plugs, and its compatibility is stronger.

[0035] Please refer again Fig. 9 , Fig.10 and Fig.11 The plug end surface 10 is also provided with a transversely extending receiving groove 22, and the third plug pin 6 includes: a plug portion 61 and a rotating portion 62 vertically bent at one end of the plug portion 61, one end of the rotating portion 62 is rotatably connected to the receiving groove 22, and when the third plug pin 6 is in a folded state, the rotating portion 62 is received in the receiving groove 22. The receiving groove 22 is a groove structure opened on the outer side wall of the connecting plate 2.

[0036] A notch 221 is further provided on one side wall of the receiving groove 22 near the plug end face 10. When the third plug pin 6 is in the folded state, the plug portion 61 extends out of the notch 221, so that the third plug pin 6 does not exceed the outer edge of the plug socket. That is, the rotational activity surface of the third plug pin 6 does not exceed the vertical upper space of the plug end face 10. At this time, the third plug pin 6 can still maintain the structural dimensions of a double-pin plug in the stored state.

[0037] Please refer again Figure 6 and Figure 7A conductive spring sheet 73 is also embedded in the plug socket, and the conductive spring sheet 73 includes a fixing portion 732 parallel to the line connecting the first pin 4 and the second pin 5, and an elastic portion 731 bent from one end of the fixing portion 732 toward the third pin 6, and one end of the third pin 6 abuts against the surface of the conductive spring sheet 73.

[0038] Specifically, when the third pin 6 is in an unfolded state, one end of the third pin 6 abuts against the bending angle between the fixed portion 732 and the elastic portion 731. When the third pin 6 is folded, the end of the rotating portion 62 abuts against the elastic portion 731. In this embodiment, a protrusion 63 is further provided at the end of the rotating portion 62 of the third pin 6. The protrusion 63 abuts against the conductive elastic sheet 73. The protrusion 63 can reduce the contact area between the third pin 6 and the conductive elastic sheet 73, so that the third pin 6 can still maintain good contact after long-term use. Of course, when the third pin 6 contacts the conductive elastic sheet 73, the two are electrically connected to the circuit board 3. When the third pin 6 is used as a ground pin, its inner end is electrically connected to the ground terminal.

[0039] A fixing plate 71 is embedded in the plug socket, and the fixing plate 71 is located behind the conductive spring sheet 73. A transfer shaft 72 is provided on the fixing plate 71, and one end of the third pin 6 is rotatably connected to the transfer shaft 72, and the transfer shaft 72 is arranged away from the pin portion 61. A connecting hole 621 movably connected to the transfer shaft 72 is provided on the rotating portion 62.

[0040] Specifically, the plug socket includes: a shell 1 with a cavity inside and an opening at the front end, and a connecting plate 2 connected to the front end opening of the shell 1, the fixing plate 71 is fixedly connected to the back of the connecting plate 2, and the first pin 4, the second pin 5 and the third pin 6 are all inserted into the connecting plate 2.

[0041] like Fig. 9 and Fig.10 As shown, the outer side surface of the connecting plate 2 is the plug-in end surface 10, and the connecting plate 2 includes: a plate body 21, and a storage groove 22 arranged on the plate body 21. The plate body 21 is also provided with two insulating sleeves 23 (24) protruding from the plug-in end surface 10, and the first plug pin 4 and the second plug pin 5 are respectively plugged into the insulating sleeves 23 (24). The insulating sleeve 23 (24) not only has an anti-electric shock function, but also has the function of enhancing the connection reliability of the first plug pin 4 and the second plug pin 5.

[0042] The connecting plate 2 is also provided with a screw hole 25 and a through hole 26, and the fixing plate 71 is provided with a corresponding connecting hole 712. The connecting hole 712 is screwed through the screw hole 25 so that the fixing plate 71 is assembled and fixed to the back of the connecting plate 2. The adapter shaft 72 is passed through the through hole 26, and the outer end is connected to the rotating part 62 of the third pin 6.

[0043] like Fig.12 As shown, the fixing plate 71 includes a sheet-like body 711 , on which a groove 713 is provided in the same extending direction as the conductive spring sheet 73 , a support arm 714 extends above the groove 713 , and the adapter shaft 72 is connected to the support arm 714 .

[0044] like Figure 8 As shown, the circuit board 3 is also provided with two electrical connection buckles 32 (33) and an output interface 31, and the first pin 4 and the second pin 5 are respectively connected to the electrical connection buckles 32 (33). The output connector 31 is a USB interface or a TYPE-C interface, etc.

[0045] The foldable plug of this embodiment is designed with a rotatable foldable structure between the third pin of the plug and the plug socket. When in use, the third pin is unfolded, and when not in use, it is rotated and folded and stored in the storage slot. The foldable design can reduce the size of the plug, making it easy to carry, transport or store.

[0046] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A foldable plug, characterized in that: The invention comprises: a plug socket, a circuit board, a first pin, a second pin and a third pin, wherein the circuit board is arranged in the plug socket, one end of the first pin and the second pin are buried in the plug socket and are electrically connected to the circuit board, and the other end extends out of the plug socket, and the third pin is rotatably connected to the plug socket, so that the third pin can be folded or unfolded after being rotated relative to the plug socket.

2. The foldable plug according to claim 1, characterized in that: The plug socket has a plugging end face, the first pin and the second pin are distributed in the length direction of the plugging end face, the third pin is distributed in a triangle with the first pin and the second pin in an expanded state, and the rotation direction of the third pin relative to the plug socket is parallel to the plugging end face.

3. The foldable plug according to claim 2, characterized in that: A transversely extending storage groove is also provided on the plug-in end surface, and the third pin includes: a pin portion and a rotating portion vertically bent at one end of the pin portion, one end of the rotating portion is rotatably connected to the storage groove, and when the third pin is in a folded state, the rotating portion is stored in the storage groove.

4. The foldable plug according to claim 3, characterized in that: A notch is also provided on a side wall of the receiving groove close to the plug end face. When the third plug pin is in a folded state, the plug pin portion extends out of the notch so that the third plug pin does not exceed the outer edge of the plug socket.

5. The foldable plug according to any one of claims 2 to 4, characterized in that: A conductive spring sheet is also embedded in the plug socket, and the conductive spring sheet includes a fixing portion parallel to the line connecting the first pin and the second pin, and an elastic portion bent from one end of the fixing portion toward the third pin, and one end of the third pin abuts against the surface of the conductive spring sheet.

6. The foldable plug according to claim 5, characterized in that: When the third plug pin is in an extended state, one end of the third plug pin abuts against a bending angle between the fixing portion and the elastic portion.

7. The foldable plug according to claim 6, characterized in that: A fixing plate is also embedded in the plug socket, and the fixing plate is located behind the conductive spring sheet. A transfer shaft is provided on the fixing plate, and one end of the third plug pin is rotatably connected to the transfer shaft.

8. The foldable plug according to claim 7, characterized in that: The plug socket includes: a shell with a cavity inside and an opening at the front end, and a connecting plate connected to the front end opening of the shell, the fixing plate is fixedly connected to the back of the connecting plate, and the first pin, the second pin and the third pin are all inserted into the connecting plate.

9. The foldable plug according to claim 8, characterized in that: The outer side surface of the connecting plate is the plug-in end surface. The connecting plate is also provided with two insulating sleeves protruding from the plug-in end surface. The first plug pin and the second plug pin are respectively plugged into the insulating sleeves.

10. The foldable plug according to claim 9, characterized in that: The circuit board is also provided with two electrical connection buckles and an output interface component, and the first plug pin and the second plug pin are respectively connected to the electrical connection buckles.

Images