Power plug and charging device

Abstract

This application discloses a power plug and charging device. The power plug includes a housing, a pin assembly, and a transmission assembly. The pin assembly includes a first pin, a first crank mounted on the first pin, a second pin, and a second crank mounted on the second pin. Both the first and second pins are rotatably connected to the housing about a first direction. The transmission assembly includes a transmission member and a guide member. The transmission member has a first groove and a second groove. The first crank is rotatably mounted in the first groove about the first direction and slidably mounted in the first groove about a second direction. The second crank is rotatably mounted in the second groove about the first direction and slidably mounted in the second groove about the second direction. The guide member is connected to the housing, and the transmission member is slidably mounted on the guide member about a third direction. The first, second, and third directions are perpendicular to each other. The positions of the first and second cranks can be more flexible.

Description

Technical Field

[0001] This application relates to the field of power plug technology, and more particularly to a power plug and charging device. Background Technology

[0002] The charger has three prongs, which makes it take up a lot of space and not very portable.

[0003] In related technologies, the three-prong plug of the charger has a conductive plug and a grounding plug. The conductive plug and the grounding plug are connected by two cranks and a transmission rod, so that the conductive plug and the grounding plug can be folded or unfolded in conjunction. However, this solution has limitations on the relative position of the two cranks. Utility Model Content

[0004] This application provides a power plug and charging device that allows for more flexible positioning of the first crank and the second crank.

[0005] In a first aspect, embodiments of this application provide a power plug, which includes a housing, a pin assembly, and a transmission assembly. The pin assembly includes a first pin, a first crank disposed on the first pin, a second pin, and a second crank disposed on the second pin. The first pin and the second pin are rotatably connected to the housing about a first direction. The first pin and the second pin are connected by transmission assembly to unfold or fold synchronously. The transmission assembly includes a transmission member and a guide member. The transmission member is provided with a first groove and a second groove. The first crank is rotatably disposed in the first groove about the first direction and slidably disposed in the first groove about a second direction. The second crank is rotatably disposed in the second groove about the first direction and slidably disposed in the second groove about the second direction. The guide member is connected to the housing, and the transmission member is slidably disposed on the guide member about a third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0006] Secondly, embodiments of this application provide a charging device, which includes a power plug and a rectifier module, wherein the rectifier module is electrically connected to the power plug.

[0007] Beneficial effects: Since the first crank slides in the first groove and the second crank slides in the second groove, the movement trajectories of the first crank and the second crank in the second direction are independent of each other. When the position of the first crank on the first pin changes, only the position of the first groove needs to be adjusted synchronously. When the position of the second crank on the second pin changes, only the position of the second groove needs to be adjusted synchronously. Therefore, the position settings of the first and second cranks can be more flexible. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the structure of a power plug in one embodiment of this application when folded;

[0010] Figure 2 This is a schematic diagram of the power plug in one embodiment of this application when it is unfolded;

[0011] Figure 3 This is a schematic diagram of the internal structure of a power plug in one embodiment of this application when it is unfolded;

[0012] Figure 4 This is a schematic diagram of the internal structure of a power plug in one embodiment of this application when folded;

[0013] Figure 5 This is a schematic diagram of the internal structure of the power plug when folded in another embodiment of this application;

[0014] Figure 6 This is an exploded view of the power plug in one embodiment of this application;

[0015] Figure 7 This is an exploded view of the power plug in another embodiment of this application;

[0016] Figure 8 This is a schematic diagram of the charging device in one embodiment of this application when it is unfolded;

[0017] Figure 9 This is an exploded structural diagram of a charging device in one embodiment of this application;

[0018] Figure 10 This is a schematic diagram of the charging device in one embodiment of this application when folded.

[0019] Explanation of reference numerals in the attached drawings: 100, power plug; 110, housing; 111, first housing; 112, second housing; 110a, first storage slot; 110b, second storage slot; 110c, first rotating slot; 110d, second rotating slot; 110e, third rotating slot; 110f, fourth rotating slot; 120, pin assembly; 121, first pin; 122, first crank; 123, second pin; 124, second crank; 125, first rotating part; 126, second rotating part; 130, transmission assembly; 131, transmission component; 131a, first sliding groove; 131b, second sliding groove; 131c, sliding hole; 132, guide; 140, conductive spring; 200, charging device; 210, rectifier module; AA, first direction; BB, second direction; CC, third direction. Detailed Implementation

[0020] The technical solutions of 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 of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

[0025] like Figure 1-4 As shown, the first aspect of this application provides a power plug 100, which can be plugged into a socket to establish an electrical connection. Depending on the regulations of different regions, the power plug 100 can be a Chinese standard plug, an American standard plug, a British standard plug, etc., and is not limited thereto.

[0026] The power plug 100 includes a housing 110, a plug assembly 120, and a transmission assembly 130.

[0027] The housing 110 is used to accommodate the pin assembly 120 and the transmission assembly 130. The outer contour shape of the housing 110 can be, for example, a cube, a cylinder, or other irregular shapes. Optionally, the housing 110 is made of plastic, which is lightweight, low-cost, easy to process, can be injection molded into various complex shapes, and can provide insulation for user safety.

[0028] The plug assembly 120 includes a first plug 121, a first crank 122, a second plug 123, and a second crank 124. The first plug 121 can be a grounding plug, thus providing protection against electric shock. The second plug 123 is a conductive plug, and there are two second plugs 123, one connected to the neutral wire and the other to the live wire. The two second plugs 123 and the first plug 121 are arranged in a triangular configuration. The first crank 122 is mounted on the first plug 121, and the connection between the first crank 122 and the first plug 121 can be achieved through welding, bonding, or integral injection molding. The second crank 124 is mounted on the second plug 123, and the connection between the second crank 124 and the second plug 123 can also be achieved through welding, bonding, or integral injection molding.

[0029] Both the first pin 121 and the second pin 123 are rotatably connected to the housing 110 around the first direction AA. For example, the first pin 121 is provided with a pivot, and the housing 110 is provided with a rotating hole adapted to the pivot; or the housing 110 is provided with a pivot, and the first pin 121 is provided with a rotating hole adapted to the pivot. Similarly, the second pin 123 is provided with a pivot, and the housing 110 is provided with a rotating hole adapted to the pivot; or the housing 110 is provided with a pivot, and the second pin 123 is provided with a rotating hole adapted to the pivot. It can be understood that the pins of the power plug 100 are arranged in a triangular pattern, therefore the first pin 121 and the second pin 123 are rotatably connected to different parts of the housing 110.

[0030] The first pin 121 and the second pin 123 are connected by a transmission assembly 130 to unfold or fold synchronously. The transmission assembly 130 includes a transmission member 131 and a guide member 132. The transmission member 131 is provided with a first slide groove 131a and a second slide groove 131b. The first crank 122 is rotatably disposed in the first slide groove 131a about a first direction AA and slidably disposed in the first slide groove 131a along a second direction BB. That is, the first crank 122 can both rotate and slide within the first slide groove 131a. The second crank 124 is rotatably disposed in the second slide groove 131b about a first direction AA and slidably disposed in the second slide groove 131b along a second direction BB. That is, the second crank 124 can both rotate and slide within the second slide groove 131b. Optionally, the first slide groove 131a and the second slide groove 131b extend along the second direction BB and are arranged in an elongated shape.

[0031] The guide 132 is connected to the housing 110. The guide 132 is used to limit the movement direction of the transmission member 131 so that the transmission member 131 is slidably disposed on the guide 132 along the third direction CC. The first direction AA, the second direction BB, and the third direction CC are perpendicular to each other. Optionally, the third direction CC is the orientation of the plug assembly 120 when it is unfolded, that is, the third direction CC can be the insertion direction of the power plug 100.

[0032] When the first pin 121 rotates relative to the housing 110, the first crank 122 rotates with the first pin 121. At this time, the first crank 122 generates an arc-shaped motion trajectory, which can be decomposed into a motion trajectory in the second direction BB and a motion trajectory in the third direction CC. That is, the first crank 122 slides along the second direction BB in the first groove 131a, and the first crank 122 drives the transmission member 131 to move along the third direction CC. When the transmission member 131 moves along the third direction CC, it can drive the second crank 124 to rotate. At this time, the second crank 124 will slide along the second direction BB in the second groove 131b. Figure 3 As shown, when the pin assembly 120 is upright, the transmission member 131 is located on top of the guide member 132, as... Figure 4 As shown, when the pin assembly 120 is folded, the transmission member 131 is located at the bottom of the guide member 132.

[0033] Conversely, when the second pin 123 rotates relative to the housing 110, the second crank 124 rotates along with the second pin 123. At this time, the second crank 124 generates an arc-shaped motion trajectory, which can be decomposed into a motion trajectory in the second direction BB and a motion trajectory in the third direction CC. That is, the second crank 124 slides along the second direction BB in the second groove 131b, and the second crank 124 drives the transmission member 131 to move along the third direction CC. When the transmission member 131 moves along the third direction CC, the transmission member 131 can drive the first crank 122 to rotate. At this time, the first crank 122 will slide along the second direction BB in the first groove 131a.

[0034] That is, one of the first pin 121 and the second pin 123 can act as an active component to drive the other to rotate.

[0035] The first crank 122 slides in the first groove 131a, and the second crank 124 slides in the second groove 131b. The movement trajectory of the first crank 122 in the second direction BB and the movement trajectory of the second crank 124 in the second direction BB can be opposite. Therefore, the first crank 122 and the second crank 124 can approach each other in the second direction BB. When the position of the first crank 122 on the first pin 121 changes, only the position of the first groove 131a needs to be adjusted synchronously. When the position of the second crank 124 on the second pin 123 changes, only the position of the second groove 131b needs to be adjusted synchronously. Therefore, the position settings of the first crank 122 and the second crank 124 can be more flexible.

[0036] In this way, the distance between the first crank 122 and the second crank 124 in the second direction BB can be relatively small, thereby making the size of the transmission component 131 in the second direction BB smaller, and consequently making the size of the power plug 100 in the second direction BB smaller, that is, the power plug 100 can be elongated. When the power plug 100 is plugged into the socket, it does not obstruct or obstructs the surrounding sockets much.

[0037] In some embodiments, the guide 132 is integrally disposed with the housing 110, or the guide 132 is part of the housing 110. For example, the guide 132 is a groove disposed in the housing 110, and the transmission member 131 is provided with a slider that matches the groove. Alternatively, the guide 132 is a slider disposed in the housing 110, and the transmission member 131 is provided with a groove that matches the slider.

[0038] like Figure 3As shown, in some other embodiments, the transmission member 131 is provided with a sliding hole 131c, and the guide member 132 passes through the sliding hole 131c to limit the sliding of the transmission member 131 along the third direction CC. The guide member 132 can be exemplarily a guide rod, which can be a round rod, a square rod, etc. It is understood that in order for the transmission member 131 to slide along the third direction CC, the transmission member 131 needs to occupy a certain sliding space. However, in this embodiment, the guide member 132 passes through the transmission member 131, so the guide member 132 is set within the sliding space, and therefore does not need to occupy additional space. This reduces the size of the power plug 100 in the second direction BB and helps to reduce the difficulty of the internal structural layout of the power plug 100.

[0039] like Figure 3 As shown, in some embodiments, the sliding hole 131c is disposed on the second direction BB between the first sliding groove 131a and the second sliding groove 131b. That is, the sliding hole 131c does not need to be disposed on the end of the first sliding groove 131a away from the second sliding groove 131b on the transmission member 131, nor does it need to be disposed on the end of the second sliding groove 131b away from the first sliding groove 131a on the transmission member 131. This helps to reduce the size of the transmission member 131 on the second direction BB, and consequently reduce the size of the power plug 100 on the second direction BB. Optionally, the first sliding groove 131a and the second sliding groove 131b can be disposed at both ends of the transmission member 131 on the second direction BB, which further helps to reduce the size of the transmission member 131 on the second direction BB.

[0040] Optionally, there can be multiple sliding holes 131c and transmission components 131, thereby making the transmission components 131 more stable when sliding along the third direction CC.

[0041] like Figure 3As shown, in some embodiments, the dimensions of the first crank 122 in the third direction CC are the same as the dimensions of the first slide groove 131a in the third direction CC. The first crank 122 and the first slide groove 131a fit together tightly with a small gap, and the first crank 122 always remains in contact with the groove wall of the first slide groove 131a. The dimensions of the second crank 124 in the third direction CC are the same as the dimensions of the second slide groove 131b in the third direction CC. The second crank 124 and the second slide groove 131b fit together tightly with a small gap, and the second crank 124 always remains in contact with the groove wall of the second slide groove 131b. Thus, when the first pin 121 rotates, the first crank 122 can drive the transmission component 131 to move along the third direction CC in real time, and the transmission component 131 can drive the second crank 124 to rotate in real time, that is, drive the second pin 123 to rotate synchronously. Conversely, when the second pin 123 rotates, the second crank 124 can drive the transmission component 131 to move along the third direction CC in real time, and the transmission component 131 can drive the first crank 122 to rotate in real time, that is, drive the first pin 121 to rotate synchronously. This makes the synchronization between the first pin 121 and the second pin 123 better.

[0042] Furthermore, the first crank 122 and the first slide groove 131a have a relatively tight fit, meaning the size of the first slide groove 131a is relatively small, which helps to improve the structural strength of the transmission component 131. The second crank 124 and the second slide groove 131b have a relatively tight fit, meaning the size of the second slide groove 131b is relatively small, which helps to improve the structural strength of the transmission component 131.

[0043] like Figure 1 and Figure 2 As shown, in some embodiments, the housing 110 is provided with a first storage groove 110a and a second storage groove 110b. When the plug assembly 120 is in the folded position, the first plug 121 extends out of the first storage groove 110a, and the second plug 123 is located in the second storage groove 110b. This facilitates the user in moving the first plug 121 and helps to reduce the size of the housing 110, improving the portability of the power plug 100. Generally, the length of the grounding plug is greater than the length of the conductive plug so that the grounding plug can be grounded first during the plug assembly 120's connection with the socket, thus providing protection. Optionally, since there is one grounding plug and two conductive plugs, the grounding plug can extend out of the first storage groove 110a, minimizing the number of protruding plugs.

[0044] Alternatively, the portion of the first pin 121 extending beyond the first storage slot 110a may be shorter, for example, 2mm, thus having little impact on portability.

[0045] like Figure 1 and Figure 2 As shown, in some embodiments, the plug assembly 120 has an extended position extending out of the housing 110 and a folded position retracted into the housing 110. When the plug assembly 120 is in the extended position, the power plug 100 can be plugged into the socket. When the plug assembly 120 is in the folded position, the power plug 100 occupies less space and has a relatively regular shape, making it easy to carry.

[0046] like Figure 3 and Figure 4 As shown, in some embodiments, the pin assembly 120 further includes a first rotating portion 125 disposed on the first pin 121 and a second rotating portion 126 disposed on the second pin 123. The first rotating portion 125 may be a rotating shaft or a rotating hole as described above, and the second rotating portion 126 may be a rotating shaft or a rotating hole as described above.

[0047] The first crank 122 is located between the first rotating part 125 and the second rotating part 126 in the second direction BB, and the second crank 124 is located between the first rotating part 125 and the second rotating part 126 in the second direction BB. This arrangement makes the distance between the first crank 122 and the second crank 124 relatively small, thereby making the size of the transmission member 131 relatively small in the first direction AA, so as to improve the portability of the power plug 100.

[0048] like Figure 5 As shown, the power plug 100 also includes a conductive spring 140, which contacts the first pin 121 to conduct electricity to the first pin 121. The conductive spring 140 can be, for example, a copper sheet, which is resistant to rust and has good conductivity. When the pin assembly 120 is in the unfolded or folded position, the conductive spring 140 presses against the second pin 123 to limit its movement, thus making the second pin 123 less prone to wobbling and ensuring the pin assembly 120 is more stable and convenient for user use. For example, the conductive spring 140 is pre-applied with elasticity; when the pin assembly 120 is in the unfolded or folded position, the conductive spring 140 presses against the second pin 123 to limit its movement.

[0049] like Figure 6 and Figure 7As shown, in some embodiments, the housing 110 includes a first housing 111 and a second housing 112 detachably connected to the first housing 111. The first housing 111 is provided with a first rotating groove 110c and a second rotating groove 110d, and the second housing 112 is provided with a third rotating groove 110e and a fourth rotating groove 110f. The first rotating groove 110c and the third rotating groove 110e together form a first rotating hole, and the second rotating groove 110d and the fourth rotating groove 110f together form a second rotating hole. A first rotating part 125 is rotatably disposed in the first rotating hole, and a second rotating part 126 is rotatably disposed in the second rotating hole.

[0050] In this embodiment, the housing 110 includes a detachable first housing 111 and a second housing 112. When the first housing 111 and the second housing 112 are separated, it facilitates the assembly of the first rotating part 125 and the second rotating part 126 with the housing 110. When the first housing 111 and the second housing 112 are combined, the first rotating part 125 and the second rotating part 126 can be limited to a certain extent to prevent the first rotating part 125 and the second rotating part 126 from separating from the housing 110.

[0051] In some embodiments, the power plug 100 further includes a drive member that is slidably disposed in the housing 110 along the third direction CC and is connected to the transmission member 131. The drive member is used to drive the transmission member 131 to move along the third direction CC, thereby driving the pin assembly 120 to unfold or retract without having to pry the first pin 121 or the second pin 123.

[0052] The driving component can be, for example, a button, a slider, etc. Alternatively, the driving component can be a structure such as a miniature electric lead screw, thereby enabling the pin assembly 120 to be electrically extended or retracted without manual operation by the user.

[0053] In some embodiments, the type of the pin assembly 120 includes one of British standard pins, American standard pins, and Chinese standard pins.

[0054] like Figure 8-10 As shown, a second aspect of this application provides a charging device 200, which includes a power plug 100 and a rectifier module 210. The rectifier module 210 is electrically connected to the power plug 100 and is used to rectify AC to DC. Exemplarily, the rectifier module 210 can be a full-wave rectifier circuit, a half-wave rectifier circuit, etc.

[0055] The charging device 200 can be elongated to facilitate user portability. When the charging device 200 is plugged into a socket, it does not obstruct or minimally obstructs the surrounding socket openings.

[0056] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An electrical plug, characterized in that, include: case; The pin assembly includes a first pin, a first crank disposed on the first pin, a second pin, and a second crank disposed on the second pin, wherein the first pin and the second pin are rotatably connected to the housing about a first direction; A transmission assembly is provided in which the first pin and the second pin are connected by transmission to unfold or fold synchronously. The transmission assembly includes a transmission component and a guide component. The transmission component is provided with a first slide groove and a second slide groove. The first crank is rotatably disposed in the first slide groove about a first direction and slidably disposed in the first slide groove along a second direction. The second crank is rotatably disposed in the second slide groove about a first direction and slidably disposed in the second slide groove along the second direction. The guide member is connected to the housing, and the transmission member is slidably disposed on the guide member along a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

2. The power plug according to claim 1, characterized in that, The transmission component is provided with a sliding hole, and the guide component passes through the sliding hole to limit the transmission component to slide along the third direction.

3. The power plug according to claim 2, characterized in that, The sliding hole is disposed in the second direction between the first sliding groove and the second sliding groove.

4. The power plug according to claim 1, characterized in that, The dimension of the first crank in the third direction is the same as the dimension of the first slide in the third direction, and the dimension of the second crank in the third direction is the same as the dimension of the second slide in the third direction.

5. The power plug according to claim 1, characterized in that, The pin assembly has an extended position extending out of the housing and a folded position retracted into the housing relative to the housing; The power plug also includes a conductive spring. When the plug assembly is in the unfolded position or the folded position, the conductive spring presses against the second plug to limit the second plug.

6. The power plug according to claim 1, characterized in that, The pin assembly has an extended position extending out of the housing and a folded position retracted into the housing relative to the housing; The housing is provided with a first storage slot and a second storage slot. When the plug assembly is in the folded position, the first plug part extends out of the first storage slot, and the second plug is located in the second storage slot.

7. The power plug according to claim 1, characterized in that, The pin assembly further includes a first rotating part disposed on the first pin and a second rotating part disposed on the second pin. The first rotating part and the second rotating part are rotatably connected to different parts of the housing. The first crank is located between the first rotating part and the second rotating part in the second direction, and the second crank is located between the first rotating part and the second rotating part in the second direction.

8. The power plug according to claim 1, characterized in that, The pin assembly further includes a first rotating part disposed on the first pin and a second rotating part disposed on the second pin. The housing includes a first shell and a second shell detachably connected to the first shell. The first shell is provided with a first rotating groove and a second rotating groove, and the second shell is provided with a third rotating groove and a fourth rotating groove. The first rotating groove and the third rotating groove together form a first rotating hole, and the second rotating groove and the fourth rotating groove together form a second rotating hole. The first rotating part is rotatably disposed in the first rotating hole, and the second rotating part is rotatably disposed in the second rotating hole.

9. The power plug according to claim 1, characterized in that, The power plug also includes a drive member, which is slidably disposed on the housing along a third direction and is connected to the transmission member to drive the transmission member to move along the third direction.

10. The power plug according to claim 1, characterized in that, The type of the pin assembly includes one of the following: British standard pin, American standard pin, and Chinese standard pin.

11. A charging device, characterized in that, include: The power plug as described in any one of claims 1-10; and A rectifier module, which is electrically connected to the power plug.

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