Foldable power plug structure

Abstract

The utility model discloses a foldable power plug structure, which comprises a shell, a circuit board and a plugging assembly, one side of the circuit board is provided with a conductive elastic sheet, and the middle part of the conductive elastic sheet is provided with a conductive groove; the plug-in assembly comprises a rotating shaft, a plug-in pin, a conductive block, a positioning wheel, an elastic piece and a positioning elastic piece, the rotating shaft is rotationally connected to the shell, the plug-in pin is connected to the rotating shaft, the conductive block is connected to one end of the plug-in pin, the conductive block is sleeved with a limiting sleeve, and the end, away from the rotating shaft, of the conductive block protrudes out of the limiting sleeve to be inserted into the conductive groove; the positioning wheel is connected to one end of the rotating shaft, the positioning elastic piece is arranged outside the positioning wheel in a sleeving mode, the positioning wheel is provided with two first positioning protruding blocks, two positioning grooves are formed in the positioning elastic piece, and the first positioning protruding blocks are used for being connected to the positioning grooves in a clamped mode. The foldable plug pin can be folded, is convenient to carry and store, can effectively realize stable positioning of the plug pin in an unfolded state, and is convenient to fold and unfold.

Description

Technical Field

[0001] The utility model relates to the field of electrical connection devices, in particular to a foldable power plug structure. Background Art

[0002] A plug generally refers to the connector of an electronic product and the plug pin of an electrical appliance. It usually has a male connector protruding in a rod shape or a copper plate shape, and is physically inserted into a female connector type power socket with a slot or a cavity.

[0003] In the related art, most power plugs have a fixed structure. The pins protrude from the surface of the housing for a long time, and are easily eroded under adverse environmental conditions, with a short service life. Such power plugs occupy a large space, and the pins of such power plugs protrude from the housing fixedly, and are likely to damage other items in the storage space during storage, making storage inconvenient and not conducive to carrying and idle storage. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a foldable power plug structure, which can be folded, is convenient for carrying and storage, has a stable and reliable structure when unfolded, and has reliable electrical conductivity.

[0005] A foldable power plug structure according to an embodiment of the utility model includes a housing, a circuit board and a plug-in component both arranged in the housing. The housing is provided with a storage groove. A conductive elastic sheet is arranged on one side of the circuit board close to the plug-in component. The middle part of the conductive elastic sheet is bent close to the plug-in component, and a conductive groove recessed away from the plug-in component is arranged in the middle part of the conductive elastic sheet.

[0006] The plug-in component includes a rotating shaft, a plug-in pin, a conductive block, a positioning wheel, an elastic member and a positioning elastic sheet. The rotating shaft is rotatably connected to the housing. The plug-in pin is connected to the rotating shaft. The conductive block is connected to one end of the plug-in pin. The end of the plug-in pin away from the conductive block penetrates through the storage groove. A limiting sleeve is sleeved outside the conductive block. The end of the conductive block away from the rotating shaft protrudes from the limiting sleeve. The conductive block is used for inserting into the conductive groove. The limiting sleeve is used for abutting against the surface of the conductive elastic sheet. The two ends of the elastic member are respectively connected to the housing and the rotating shaft to make the plug-in pin have a movement tendency to approach the bottom of the storage groove. The positioning wheel is connected to one end of the rotating shaft. The positioning elastic sheet is in a frame shape and is sleeved outside the positioning wheel. Two first positioning protrusions are arranged on the circumferential surface of the positioning wheel. The two first positioning protrusions are symmetric about the center of the positioning wheel. Two opposite positioning grooves are arranged in the positioning elastic sheet. The first positioning protrusions are used for being clamped in the positioning grooves to fix the position of the plug-in pin protruding from the storage groove.

[0007] In this embodiment, 2n second positioning protrusions are further arranged on the circumferential surface of the positioning wheel, where n is an integer greater than zero. The second positioning protrusions are used for being clamped in the positioning grooves to fix the position of the plug-in pin stored in the storage groove.

[0008] In this embodiment, the distance between the top of the first positioning bump and the center of the positioning wheel is L1, and the distance between the top of the second positioning bump and the center of the positioning wheel is L2, where L1 > L2. The distance between the bottoms of the two positioning grooves is L3, and L3 = 2L2.

[0009] In this embodiment, reinforcing ribs are provided on the surface of the positioning elastic piece.

[0010] In this embodiment, there are four reinforcing ribs, and reinforcing ribs are provided on the outer sides of the opposite ends of each positioning groove.

[0011] In this embodiment, the limiting sleeve is an insulating silica gel sleeve.

[0012] In this embodiment, the elastic member is a torsion spring. A first clamping seat is provided in the housing, and a second clamping seat is provided at one end of the rotating shaft away from the positioning wheel. The two ends of the torsion spring are respectively connected to the first clamping seat and the second clamping seat.

[0013] In this embodiment, the housing includes a detachable upper cover and a lower cover, and the storage groove is provided on the side of the lower cover away from the upper cover.

[0014] The embodiments of the present utility model at least have the following beneficial effects:

[0015] By providing the storage groove and the foldable plug-in component, it can be folded and stored according to needs in situations such as transportation and idle, which can effectively save space, facilitate carrying and storage. The folded plug pins are hidden during storage, with good dust and water protection performance, and can effectively extend the service life of the product; when the plug pins are unfolded for use, the conductive block is inserted into the conductive groove to achieve conduction with the conductive elastic piece. The plug pins protrude from the storage groove for plugging use. Through the conductive groove, the contact area between the conductive elastic piece and the conductive block can be effectively increased, the conductivity can be effectively improved, problems such as poor contact or looseness can be effectively reduced, and the conductive reliability is strong. By positioning the positioning wheel with the positioning elastic piece, the stable positioning of the plug pins in the unfolded state can be effectively achieved, and the folding and unfolding operations are convenient; in addition, when the plug pins are unfolded, by the end of the limiting sleeve away from the rotating shaft abutting and pressing on the surface of the conductive elastic piece, the firmness of the positioning structure between the conductive block and the conductive groove can be effectively improved, the deviation of the plug pins during use can be effectively avoided, and the stability in the unfolded use state can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0017] Figure 1 is a three-dimensional structural schematic diagram of the foldable power plug structure of the embodiment of the present utility model when folded;

[0018] Figure 2 Schematic perspective view of the unfolded foldable power plug structure according to an embodiment of the present utility model;

[0019] Figure 3 Exploded view of the foldable power plug structure according to an embodiment of the present utility model;

[0020] Figure 4 Exploded view of the foldable power plug structure according to an embodiment of the present utility model from another perspective;

[0021] Figure 5 Perspective view of the foldable power plug structure according to an embodiment of the present utility model from a top view angle;

[0022] Figure 6 is Figure 5 Schematic cross-sectional view taken along A-A' in

[0023] Figure 7 is Figure 5 Schematic cross-sectional view taken along B-B' in

[0024] Reference numerals:

[0025] Housing 100, receiving groove 101, first clamping seat 102, upper cover 110, lower cover 120;

[0026] Circuit board 200, conductive elastic piece 210, conductive groove 211;

[0027] Plug-in assembly 300, rotating shaft 310, second clamping seat 311, plug-in pin 320, conductive block 330, limiting sleeve 340, positioning wheel 350, first positioning protrusion 351, second positioning protrusion 352, elastic member 360, positioning elastic piece 370, positioning groove 371, reinforcing rib 372. Detailed implementation manners

[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, left, right, front, back, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0030] In the description of the present utility model, if the first and the second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or the sequence of the indicated technical features.

[0031] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", and "connection" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0032] A plug generally refers to the connector of an electronic product and the pin of an electrical appliance. It usually has a male connector protruding in a rod shape or a copper plate shape, and is physically inserted into a female connector type power socket with a slot or a hole. In the related art, most power plugs have a fixed structure, and the pins protrude from the surface of the housing for a long time, which is easily eroded under adverse environmental conditions and has a short service life. Such a power plug occupies a large space, and the pins of such a power plug fixedly protrude outside the housing, which is likely to damage other items in the storage space during storage, is inconvenient for storage, and is not conducive to carrying and idle storage.

[0033] To solve the above problems, although some foldable plug designs have emerged in the market, most of them have complex structures, inconvenient operations, and problems such as poor electrical conductivity and unstable positioning. For example, some designs use complex mechanical structures to achieve the folding and unfolding of the plug, which not only increases the manufacturing cost but also reduces the reliability and durability of the product. In addition, some designs have defects in electrical conductivity and pin positioning, resulting in poor contact or easy loosening when the plug is inserted into the socket, affecting the use effect.

[0034] The following refers to the attached Figure 1 to the attached Figure 7 to describe the foldable power plug structure of the embodiment of the present utility model, which can be folded, is convenient for carrying and storage, has a stable and reliable structure when unfolded, and has reliable electrical conductivity.

[0035] Referring to Figures 1 to 7 , a foldable power plug structure of an embodiment of the present utility model includes a housing 100, and a circuit board 200 and a plug-in component 300 both disposed in the housing 100. The circuit board 200 is fixedly connected in the housing 100. The housing 100 is provided with a storage groove 101. One side of the circuit board 200 close to the plug-in component 300 is provided with a pair of conductive elastic sheets 210. The two conductive elastic sheets 210 are respectively electrically connected to corresponding circuits in the circuit board 200. The middle part of the conductive elastic sheet 210 is bent close to the plug-in component 300, and a conductive groove 211 recessed away from the plug-in component 300 is provided in the middle part of the conductive elastic sheet 210;

[0036] The plug-in component 300 includes a rotating shaft 310, a pair of plug pins 320, a pair of conductive blocks 330, a positioning wheel 350, an elastic member 360, and a frame-shaped positioning elastic piece 370. The rotating shaft 310 is rotatably connected within the housing 100. The circuit board 200 and the storage groove 101 are respectively located on opposite sides of the rotating shaft 310. Both plug pins 320 are fixedly connected to the rotating shaft 310. The rotating shaft 310 is an insulating shaft. The conductive block 330 is fixedly connected to one end of the plug pin 320, and the conductive block 330 is electrically connected to the plug pin 320. Specifically, both the plug pin 320 and the conductive block 330 are connected to the circumferential surface of the rotating shaft 310. Preferably, the plug pin 320 and the conductive block 330 are connected to opposite sides of the rotating shaft 310, and the conductive block 330 is located in the extending direction of the plug pin 320. One end of the plug pin 320 away from the conductive block 330 penetrates through the storage groove 101, and one end of the bottom of the storage groove 101 penetrates through the housing 100, so that the end of the plug pin 320 can be reliably connected to the rotating shaft 310 inside the housing 100. A limiting sleeve 340 is sleeved outside the conductive block 330. One end of the limiting sleeve 340 abuts against the rotating shaft 310, and one end of the conductive block 330 away from the rotating shaft 310 protrudes from the limiting sleeve 340. One end of the conductive block 330 away from the rotating shaft 310 is used to insert and abut against the conductive groove 211. The limiting sleeve 340 is used to abut against the surface of the conductive elastic piece 210 close to the rotating shaft 310 when the conductive block 330 is inserted into the conductive groove 211 to achieve enhanced positioning. Both ends of the elastic member 360 are respectively connected to the housing 100 and the rotating shaft 310, so that the plug pin 320 forms a movement trend towards the bottom of the storage groove 101, and the conductive block 330 forms a movement trend away from the conductive elastic piece 210. The positioning wheel 350 is fixedly connected to one end of the rotating shaft 310, and the axis of the rotating shaft 310 passes through the center of the positioning wheel 350, so that the positioning wheel 350 can rotate around the rotating shaft 310. The positioning elastic piece 370 is frame-shaped and is sleeved and clamped outside the positioning wheel 350, that is, the positioning elastic piece 370 is frame-shaped, and the positioning block is arranged inside the frame of the positioning elastic piece 370. The positioning elastic piece 370 is connected within the housing 100. Two first positioning protrusions 351 are provided on the circumferential surface of the positioning wheel 350, and the two first positioning protrusions 351 are symmetric about the center of the positioning wheel 350, that is, the two first positioning protrusions 351 are symmetric about the rotating shaft 310. Two opposite positioning grooves 371 are provided inside the positioning elastic piece 370. The first positioning protrusion 351 is used to be clamped in the positioning groove 371. The positioning elastic piece 370 can position the positioning wheel 350 to fix the position of the plug pin 320 protruding outside the storage groove 101 and fix the position of the conductive block 330 inserted and abutting against the conductive groove 211. At this time, the limiting sleeve 340 abuts against the surface of the conductive elastic piece 210 to reinforce the stability of the connection structure between the conductive elastic piece 210 and the conductive block 330.

[0037] The foldable power plug structure of the present utility model mainly has two states: folding and unfolding.

[0038] When folded, as shown in Figure 1 Figure 3, under the action of the elastic member 360, the rotating shaft 310 rotates relative to the housing 100, so that the insertion pin 320 rotates to be located in the storage groove 101, and the conductive block 330 rotates away from the conductive elastic piece 210, and a gap is formed between the conductive elastic piece 210 and the conductive block 330 to make the two in a disconnected state;

[0039] When unfolded, as shown in Figure 2 、 6 Figure 7, the insertion pin 320 is rotated away from the bottom of the storage groove 101 until the first positioning protrusion 351 is snapped into the positioning groove 371. At this time, the insertion pin 320 protrudes out of the storage groove 101, and the positioning wheel 350 is positioned by the positioning elastic piece 370, so as to position the positions of the rotating shaft 310 and the insertion pin 320. The conductive block 330 is inserted into and abuts against the conductive groove 211, so as to realize the conduction between the insertion pin 320 and the conductive elastic piece 210. Moreover, at this time, the end of the limit sleeve 340 away from the rotating shaft 310 abuts and presses against the surface of the conductive elastic piece 210, which can effectively improve the stability of the position where the conductive block 330 is inserted and abuts against the conductive groove 211. The insertion pin 320 can be inserted into a power supply interface such as a socket for use, and the insertion structure is stable and reliable.

[0040] By providing the storage groove 101 and the foldable insertion assembly 300, it can be folded and stored according to needs during transportation, idle and other situations, which can effectively save space, facilitate carrying and storage, especially suitable for travel or occasions with limited space. The folded and stored insertion pin 320 is hidden during storage, with good dust and water resistance, and can effectively extend the service life of the product; when the insertion pin 320 is unfolded for use, the conductive block 330 is inserted into the conductive groove 211 to realize conduction with the conductive elastic piece 210, and the insertion pin 320 protrudes out of the storage groove 101 for insertion. Through the conductive groove 211, the contact area between the conductive elastic piece 210 and the conductive block 330 can be effectively increased, which can ensure good contact between the insertion pin 320 and the conductive sheet in the unfolded state, effectively improve the conductivity, effectively reduce problems such as poor contact or looseness, and has strong conductive reliability. The positioning wheel 350 is positioned by the stress of the positioning elastic piece 370 itself, which can effectively realize the stable positioning of the insertion pin 320 in the unfolded state. Users do not need to perform additional operations to ensure the stability of the position between the insertion pin 320 and the housing 100 at this time. The folding and unfolding operations are convenient; in addition, when the insertion pin 320 is unfolded, the end of the limit sleeve 340 away from the rotating shaft 310 abuts and presses against the surface of the conductive elastic piece 210, which can effectively improve the firmness of the positioning structure between the conductive block 330 and the conductive groove 211, effectively avoid unnecessary offset of the insertion pin 320 during use, and effectively improve the stability in the unfolded use state.

[0041] It can be understood that 2n second positioning bumps 352 are further provided on the circumferential surface of the positioning wheel 350, where n is an integer greater than zero. The second positioning bumps 352 are used to be clamped in the positioning grooves 371. The positioning elastic piece 370 can position the positioning wheel 350 to fix the position of the insertion pin 320 received in the receiving groove 101. At this time, the conductive block 330 is located outside the conductive groove 211, and the connection between the conductive block 330 and the conductive elastic piece 210 is disconnected.

[0042] Preferably, n is set to 3. The six second positioning blocks are centrosymmetric about the center of the positioning wheel 350. The second positioning blocks can achieve multi-stage positioning of the rotation action of the positioning wheel 350, and can bring direct feedback vibration to the user's rotation action. It can not only effectively improve the user experience, but also improve the stability of the rotation action.

[0043] It can be understood that along the direction perpendicular to the rotating shaft 310, the cross-sections of the first positioning bump 351 and the second positioning bump 352 are both triangular. The distance between the top end of the first positioning bump 351 and the center of the positioning wheel 350 is L1, and the distance between the top end of the second positioning bump 352 and the center of the positioning wheel 350 is L2, where L1 > L2. The distance between the bottoms of the two opposite positioning grooves 371 is L3, and L3 = 2L2. By setting the second positioning bump 352, it can just be inserted into the positioning groove 371, and when the first positioning bump 351 is inserted into the positioning groove 371, it will cause the positioning elastic piece 370 to expand, which can effectively improve the stability of the position when the insertion pin 320 is unfolded.

[0044] It can be understood that reinforcing ribs 372 are provided on the surface of the positioning elastic piece 370. The reinforcing ribs 372 can effectively extend the service life of the positioning elastic piece 370, and avoid the situation that the large-sized first positioning bump 351 is inserted and clamped for a long time, resulting in the positioning elastic piece 370 losing the performance of elastic clamping due to metal fatigue in advance, and can effectively extend the overall life of the product.

[0045] It can be understood that there are four reinforcing ribs 372. A reinforcing rib 372 is provided outside each of the opposite ends of each positioning groove 371. By setting the reinforcing ribs 372 to avoid the positioning groove 371, it can effectively ensure the elasticity of the positioning elastic piece 370 in the area where the positioning groove 371 is located, and can effectively ensure the stability of the clamping and positioning action.

[0046] It can be understood that the limit sleeve 340 is an insulating silica gel sleeve, which is wrapped around the periphery of one end of the conductive block 330 close to the rotating shaft 310. It can effectively and significantly reduce the probability of problems such as short - circuit mis - touch. Moreover, the silica gel material has good elasticity and a relatively high friction coefficient, which can effectively improve the stability of the abutting and positioning action between the insulating silica gel sleeve and the conductive elastic piece 210 when the insertion pin 320 is unfolded. At the same time, it can effectively avoid unnecessary wear of the conductive elastic piece 210 by the insulating silica gel sleeve during rotation, and can effectively extend the service life of the product.

[0047] It can be understood that the elastic member 360 is a torsion spring. A first clamping seat 102 is provided inside the housing 100, and the first clamping seat 102 is fixedly connected to the inner side of the housing 100. One end of the rotating shaft 310 away from the positioning wheel 350 is provided with a second clamping seat 311, and the second clamping seat 311 is fixedly connected to one end of the rotating shaft 310 away from the positioning wheel 350. The two ends of the torsion spring are respectively clamped and connected to the first clamping seat 102 and the second clamping seat 311.

[0048] Preferably, the first clamping seat 102 is provided with a first clamping groove for positioning one end of the torsion spring, and the second clamping seat 311 is provided with a second clamping groove for positioning the other end of the torsion spring.

[0049] It can be understood that the housing 100 includes a detachable upper cover 110 and a lower cover 120. The storage groove 101 is provided on the side of the lower cover 120 away from the upper cover 110. By setting the upper cover 110 and the lower cover 120 to form the housing 100, the assembly and maintenance of the power plug structure can be facilitated.

[0050] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A foldable power plug structure, characterized in that: The invention comprises a housing (100), and a circuit board (200) and a connector assembly (300) both of which are arranged on the housing (100); the housing (100) is provided with a storage slot (101); a conductive spring sheet (210) is provided on a side of the circuit board (200) close to the connector assembly (300); a middle portion of the conductive spring sheet (210) is bent close to the connector assembly (300); and a conductive slot (211) is provided on the middle portion of the conductive spring sheet (210) and is recessed away from the connector assembly (300); The connector assembly (300) comprises a rotating shaft (310), a plug pin (320), a conductive block (330), a positioning wheel (350), an elastic member (360) and a positioning spring sheet (370); the rotating shaft (310) is rotatably connected to the housing (100); the plug pin (320) is connected to the rotating shaft (310); the conductive block (330) is connected to one end of the plug pin (320); the end of the plug pin (320) away from the conductive block (330) is penetrated by the receiving groove (101); a limiting sleeve (340) is provided on the outer shell of the conductive block (330); the end of the conductive block (330) away from the rotating shaft (310) protrudes from the limiting sleeve (340); the conductive block (330) is used to be inserted into the conductive groove (211); the limiting sleeve (340) is used to abut against the conductive spring sheet (211). 10), the two ends of the elastic member (360) are respectively connected to the shell (100) and the rotating shaft (310), so that the connector pin (320) forms a movement tendency to approach the bottom of the receiving groove (101), the positioning wheel (350) is connected to one end of the rotating shaft (310), the positioning spring (370) is frame-shaped and sleeved outside the positioning wheel (350), the circumferential surface of the positioning wheel (350) is provided with two first positioning protrusions (351), the two first positioning protrusions (351) are symmetrical about the center of the positioning wheel (350), the positioning spring (370) is provided with two opposite positioning grooves (371), the first positioning protrusions (351) are used to be clamped in the positioning grooves (371) to fix the position of the connector pin (320) protruding outside the receiving groove (101).

2. A foldable power plug structure according to claim 1, characterized in that: The circumferential surface of the positioning wheel (350) is also provided with 2n second positioning protrusions (352), where n is an integer greater than zero, and the second positioning protrusions (352) are used to snap into the positioning groove (371) to fix the position of the connector pin (320) received in the receiving groove (101).

3. A foldable power plug structure according to claim 2, characterized in that: The distance between the top of the first positioning protrusion (351) and the center of the positioning wheel (350) is L1, the distance between the top of the second positioning protrusion (352) and the center of the positioning wheel (350) is L2, L1>L2, and the distance between the bottoms of the two positioning grooves (371) is L3, L3=2L2.

4. A foldable power plug structure according to claim 3, characterized in that: A reinforcing rib (372) is provided on the surface of the positioning spring piece (370).

5. A foldable power plug structure according to claim 4, characterized in that: Four reinforcing ribs (372) are provided, and a reinforcing rib (372) is provided outside the opposite ends of each positioning groove (371).

6. A foldable power plug structure according to claim 1, characterized in that: The limiting sleeve (340) is an insulating silicone sleeve.

7. A foldable power plug structure according to claim 1, characterized in that: The elastic member (360) is a torsion spring, a first locking seat (102) is provided in the housing (100), a second locking seat (311) is provided at one end of the rotating shaft (310) away from the positioning wheel (350), and two ends of the torsion spring are respectively connected to the first locking seat (102) and the second locking seat (311).

8. The foldable power plug structure according to claim 1, characterized in that: The housing (100) comprises an upper cover (110) and a lower cover (120) which are detachably connected, and the storage groove (101) is arranged on a side of the lower cover (120) away from the upper cover (110).

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