Wall power socket

Abstract

The invention provides a wall power socket which comprises a panel and a base, a first cavity, a second cavity and a third cavity are formed in the base, and the second cavity and the third cavity are located on the two sides of the first cavity respectively; an electric connection assembly is arranged in the first cavity, a first electric contact assembly is arranged in the second cavity, and a second electric contact assembly is arranged in the third cavity; the first electric contact assembly converges towards the interior of the second cavity in the direction away from the first cavity, so that at least part of one side of the first cavity extends into the second cavity. And the second electric contact assembly converges towards the interior of the third cavity in the direction away from the first cavity, so that at least part of the other side of the first cavity extends into the third cavity.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power sockets, in particular to a wall power socket. BACKGROUND

[0002] The size of the wall power socket or the in-wall power socket and the size of the reserved space inside the wall are fixed. With the popularity of electronic devices, a USB charging interface is added to the power socket. However, due to space limitations, the size of the USB charging circuit board in the power socket is small, so the USB charging power of the power socket is small. SUMMARY

[0003] One purpose of the present application is to solve at least one of the above problems and defects in the prior art.

[0004] To solve the above problems, the present application discloses a wall power socket, comprising: a panel and a base, wherein the base is formed with a first cavity and a second cavity and a third cavity located on both sides of the first cavity respectively; the first cavity is provided with a circuit board assembly, the second cavity is provided with a first electrical contact assembly, and the third cavity is provided with a second electrical contact assembly; the first electrical contact assembly converges into the second cavity in a direction away from the first cavity, so that at least part of the first cavity extends into the second cavity; and the second electrical contact assembly converges into the third cavity in a direction away from the first cavity, so that at least part of the first cavity extends into the third cavity.

[0005] According to an exemplary embodiment of the present application, further comprising an electrical connection assembly, wherein the electrical connection assembly connects the first electrical contact assembly and the second electrical contact assembly, and the electrical connection assembly comprises a first connecting metal piece and a second connecting metal piece.

[0006] According to an exemplary embodiment of the present application, the first electrical contact assembly comprises a first neutral pin, a first live pin, a first ground pin, a first neutral connecting piece, a first live connecting piece, and a second live connecting piece, wherein one end of the first neutral connecting piece is connected with the first neutral pin, and the other end of the first neutral connecting piece is connected with the second connecting metal piece; one end of the first live connecting piece is connected with the first live pin, and the other end of the first live connecting piece is connected with one end of the second live connecting piece, the first live connecting piece comprises a plurality of bending structures, and the extension plane of the bending structure close to one end of the first live connecting piece is perpendicular to the panel; and the other end of the second live connecting piece is connected with the first connecting metal piece.

[0007] According to an exemplary embodiment of the present application, the second electrical contact assembly includes a second neutral pin, a second live pin, a second ground pin, a second neutral connecting piece, a third live connecting piece, and a fourth live connecting piece, wherein one end of the second neutral connecting piece is connected to the second connecting metal piece, one end of the second neutral connecting piece is provided with the second neutral pin, the second neutral connecting piece includes multiple bending structures, and the extension plane of the upward bending structure in the middle of the second neutral connecting piece is perpendicular to the panel; one end of the third live connecting piece is connected to the second live pin, the other end of the third live connecting piece is connected to one end of the fourth live connecting piece; and the other end of the fourth live connecting piece is connected to the first connecting metal piece.

[0008] According to an exemplary embodiment of the present application, the first neutral pin, the first neutral connecting piece, the second connecting metal piece, the second neutral pin, and the second neutral connecting piece are integrally formed.

[0009] According to an exemplary embodiment of the present application, the second live connecting piece, the first connecting metal piece, and the fourth live connecting piece are integrally formed.

[0010] According to an exemplary embodiment of the present application, the first connecting metal piece includes a U-shaped structure protruding towards the second connecting metal piece.

[0011] According to an exemplary embodiment of the present application, the circuit board assembly includes a USB circuit board and an insulating piece, wherein the insulating piece is configured to insulate the USB circuit board from the electrical connection assembly.

[0012] According to an exemplary embodiment of the present application, the insulating piece includes a plate-shaped body located between the USB circuit board and the electrical connection assembly.

[0013] According to an exemplary embodiment of the present application, the back of the USB circuit board is provided with a neutral power pin and a live power pin, the plate-shaped body is provided with a first through hole and a second through hole, the neutral power pin passes through the first through hole to contact the second connecting metal piece, and the live power pin passes through the second through hole to contact the first connecting metal piece.

[0014] According to an exemplary embodiment of the present application, it further includes a first metal sheet and a second metal sheet, the base is provided with a heat dissipation hole, and the first metal sheet and the second metal sheet are located in front of the heat dissipation hole.

[0015] According to an exemplary embodiment of the present application, the back of the USB circuit board is provided with a shielding power pin, the plate-shaped main body is provided with a third through hole, and the shielding power pin passes through the third through hole to contact the first metal sheet.

[0016] According to an exemplary embodiment of the present application, the intermediate panel is located in the panel.

[0017] According to an exemplary embodiment of the present application, the surface of the intermediate panel is provided with a recess, and the recess is provided with a heat dissipation plate.

[0018] According to an exemplary embodiment of the present application, the heat dissipation plate comprises one or more of a graphene heat dissipation plate, a graphite heat dissipation plate, and a metal heat dissipation plate.

[0019] According to an exemplary embodiment of the present application, the first switch button, the second switch button, the first fixed contact, the second fixed contact, the first movable contact, and the second movable contact are further included, wherein the first fixed contact is located at the other end of the first live wire connecting sheet, and the second fixed contact is located at the other end of the third live wire connecting sheet; one end of the second live wire connecting sheet is provided with a first support sheet configured to support the first movable contact, and the fourth live wire connecting sheet is provided with a second support sheet configured to support the second movable contact; and the first movable contact is configured to be connected or disconnected with the first fixed contact by the first switch button, and the second movable contact is configured to be connected or disconnected with the second fixed contact by the second switch button.

[0020] In the foregoing exemplary embodiments of the present application, the first electric contact assembly and the second electric contact assembly converge in a direction away from the first cavity on both sides of the first cavity, so that the space on both sides of the part of the first cavity can extend to both sides, thereby expanding the internal space of the first cavity. In this way, the area of the USB circuit board located in the first cavity can be increased, thereby improving the charging power of the USB circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0021] The features, advantages, and other aspects of the embodiments of the present application will become more apparent from the following detailed description in conjunction with the accompanying drawings, in which a number of embodiments of the present application are illustrated, by way of example, and not limitation, in the drawings:

[0022] Figure 1a A schematic diagram of a wall power socket according to an embodiment of the present application.

[0023] Figure 1b A schematic diagram of a wall power socket according to an embodiment of the present application.

[0024] Figure 2 A structural diagram of a base of a wall power socket according to an embodiment of the present application.

[0025] Figure 3 An exploded view of a metal piece of a wall power socket according to an embodiment of the present application.

[0026] Figure 4 An assembly view of a metal piece of a wall power socket according to an embodiment of the present application.

[0027] Figure 5 A perspective exploded view of a wall power socket according to an embodiment of the present application.

[0028] Figure 6 A structural diagram of a USB circuit board and an insulating piece according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] The implementation and use of the embodiments will be discussed in detail below. It should be appreciated that the specific embodiments discussed are merely illustrative of specific ways to implement and use the present application and are not intended to limit the scope of the present application. In the description, the expressions of the structural positions of various components, such as up, down, left, right, etc., are not absolute but relative. When the various components are arranged as shown in the figures, these expressions of directions are appropriate, but when the positions of the various components in the figures are changed, these expressions of directions also change accordingly.

[0030] According to the standards of different countries, the outer dimensions of a wall power socket and the reserved space of a wall for installing the socket are fixed. The power socket is usually provided with a power interface for a power plug to be inserted into. With the rise of, for example, mobile phones and notebook computers, a USB charging interface can be directly added to the original power socket, and a power adapter can be dispensed with.

[0031] Figure 1a and Figure 1b A schematic view of a wall power socket (hereinafter referred to as “socket”) 100a and 100b according to an embodiment of the present application is shown. Figure 1a The power socket 100a includes two power interfaces 13, 14, two USB interfaces 15, and two switch buttons 11, 12 for controlling the connection and disconnection of the current of the two power interfaces, respectively. The two power interfaces 13, 14 are located on the two sides of the socket, and the USB interfaces are located in the middle of the two power interfaces and slightly above. The two USB interfaces on the socket 100a are both Type-C interfaces. Figure 1b The power socket 100b on Figure 1aThe power socket 100a is similar to the power socket 100b, except for the shape of the power interface and the types of the USB interfaces. The power socket 100b is provided with two Type-A interfaces 16 and one Type-C interface. It can be understood that the USB interfaces on the power socket can be other combinations of Type-A interfaces and Type-C interfaces, such as two Type-A interfaces, one Type-A interface plus two Type-C interfaces, etc.

[0032] When the USB interfaces on the power socket are powered on, they will always be in a powered-on state, which is not controlled by the switch button. Due to the space limitation of the power socket, the size of the USB charging circuit board is small, and therefore the charging power provided by the USB charging interface is small, for example, about 30W. This cannot meet the charging requirements of high-power devices such as notebook computers.

[0033] To solve the above problems, one embodiment of the present application provides a wall power socket, comprising a panel and a base. The base is formed with a first cavity and a second cavity and a third cavity located on the two sides of the first cavity respectively. The first cavity is provided with a circuit board assembly, the second cavity is provided with a first electrical contact assembly, and the third cavity is provided with a second electrical contact assembly. The first electrical contact assembly converges into the second cavity in a direction away from the first cavity, so that at least part of the first electrical contact assembly on one side of the first cavity extends into the second cavity. The second electrical contact assembly converges into the third cavity in a direction away from the first cavity, so that at least part of the second electrical contact assembly on the other side of the first cavity extends into the third cavity.

[0034] Figure 2 A structural schematic diagram of the base of the wall power socket of one embodiment of the present application is shown. Figure 3 An exploded view of the metal piece of the wall power socket of one embodiment of the present application is shown. Figure 4 An assembly view of the metal piece of the wall power socket of one embodiment of the present application is shown. Figure 5 A perspective exploded view of the wall power socket of one embodiment of the present application is shown. Figure 6 A structural schematic diagram of the USB circuit board and the insulating piece of one embodiment of the present application is shown.

[0035] In Figure 2 In the base 50, a first cavity 51 and a second cavity 52 and a third cavity 53 located on the two sides of the first cavity 51 are provided. The first cavity 51 is a very regular cuboid, and the two side edges thereof respectively protrude to the second cavity 52 and the third cavity 53. Figure 2 In the above embodiment, most of the upper part of the two side edges of the first cavity 51 respectively protrude to the two sides.

[0036] The first cavity 51 is provided with a circuit board assembly, the second cavity 52 is provided with the first electrical contact assembly 41, and the third cavity 53 is provided with the second electrical contact assembly 42. The first electrical contact assembly 41 and the second electrical contact assembly 42 are respectively used to provide two pins of the socket. The wall power socket further comprises an electrical connection assembly 40. The first electrical contact assembly 41 and the second electrical contact assembly 42 are connected through the electrical connection assembly 40.

[0037] In Figure 3 , the first electrical contact assembly 41 converges to the left side. The convergence here refers to the retreat in the direction of itself to give way to the adjacent components. The first electrical contact assembly 41 converges to the second cavity 52 in the direction away from the first cavity 51, so that at least part of the first cavity 51 on one side extends into the second cavity 52. In this way, the upper part of the left side edge of the first cavity 51 extends to the second cavity 52.

[0038] In Figure 3 , the second electrical contact assembly 42 converges to the right side. The first electrical contact assembly 42 converges to the third cavity 53 in the direction away from the first cavity 51, so that at least part of the first cavity 51 on one side extends into the third cavity 53. In this way, the upper part of the right side edge of the first cavity 51 extends to the third cavity 53.

[0039] Because the first electrical contact assembly 41 and the second electrical contact assembly 42 converge in the direction away from the first cavity 51 on both sides of the first cavity 51, the perimeter edge of the first cavity 51 can not be a regular rectangle. Compared with a conventional cavity, the space on both sides of the upper part of the first cavity 51 can respectively extend to both sides, thereby increasing the internal space of the first cavity 51. In this way, the area of the USB circuit board located in the first cavity can be increased, thereby improving the charging power of the USB circuit board.

[0040] In Figure 3 , the electrical connection assembly 40 connects the first electrical contact assembly 41 and the second electrical contact assembly 42. The electrical connection assembly 40 comprises a first connecting metal piece 40A and a second connecting metal piece 40B. In Figure 3 the example, the first connecting metal piece 40A located on the upper side is used to connect the fire pin among the two pins on the left and right sides, and the second connecting metal piece 40B located on the lower side is used to connect the zero pin among the two pins on the left and right sides. In addition, the first connecting metal piece 40A and the second connecting metal piece 40B are arranged in parallel. The first connecting metal piece 40A and the second connecting metal piece 40B are both in the form of a metal sheet, and the extension planes thereof are parallel to the plane on which the panel 10 is located.

[0041] As Figure 3As shown, in some examples, the first connecting metal member 40A includes a U-shaped structure protruding towards the second connecting metal member 40B. In other examples, the second connecting metal member 40B includes a U-shaped structure protruding towards the first connecting metal member 40A. The U-shaped structure can reduce the distance between the first connecting metal member 40A and the second connecting metal member 40B. The bending angle of the U-shaped structure is ninety degrees. It can be understood that in other examples, the bend on the first connecting metal member 40A or the second connecting metal member 40B can be a non-perpendicular bend.

[0042] The convergence of the first electrical contact assembly 41 and the second electrical contact assembly 42 in a direction away from the first cavity 51 can be achieved through the optimized layout of their structures.

[0043] In some examples, such as Figure 3 As shown, the first electrical contact assembly 41 includes a first neutral wire pin 411, a first live wire pin 412, a first ground wire pin 413, a first neutral wire connecting piece 414, a first live wire connecting piece 415, and a second live wire connecting piece 416.

[0044] One end of the first neutral wire connector 414 is connected to the first neutral wire pin 411, and the other end of the first neutral wire connector 414 is connected to the second connecting metal part 40B. One end of the first live wire connector 415 is connected to the first live wire pin 412, and the other end of the first live wire connector 415 is connected to one end of the second live wire connector 416. The other end of the second live wire connector 416 is connected to the first connecting metal part 40A.

[0045] The first live wire connector 415 includes a multi-segment bent structure. The extended plane of the bent structure near one end of the first live wire connector 415 is perpendicular to the panel 10. Specifically, the left and right parts of the first live wire connector 415 are L-shaped metal pieces. The left L-shaped metal piece is connected to the second live wire connector 416, and the right L-shaped metal piece is connected to the first live wire pin 412. Both of these L-shaped metal pieces are inverted L-shapes, similar in shape to the number 7.

[0046] Additionally, see Figure 3-4 The extended plane of the L-shaped metal piece on the left side of the first live wire connector 415 is parallel to the panel 10, while the extended plane of the L-shaped metal piece on the right side of the first live wire connector 415 is perpendicular to the panel 10. The structure of the first live wire connector 415, especially the metal piece near the live wire pin, can reduce the space occupied by the second cavity 52, thereby making room for the left side of the first cavity 51.

[0047] In some examples, such as Figure 3As shown, the second electrical contact assembly 42 includes a second neutral pin 421, a second live pin 422, a second ground pin 423, a second neutral tab 424, a third live tab 425, and a fourth live tab 426. The first neutral pin 411, the first live pin 412, the first ground pin 413, the second neutral pin 421, the second live pin 422, and the second ground pin 423 can include a spring structure for the insertion and extraction of the plug rod of an external electrical appliance.

[0048] One end of the second neutral tab 424 is connected to the second connecting metal piece 40B, and the other end of the second neutral tab 424 is provided with the second neutral pin 421. One end of the third live tab 425 is connected to the second live pin 422, and the other end of the third live tab 425 is connected to one end of the fourth live tab 426. The other end of the fourth live tab 426 is connected to the first connecting metal piece 40A.

[0049] The second neutral tab 424 includes a plurality of bending structures. As shown, the second neutral tab 424 is an overall inverted L-shaped metal tab, and the extension plane of the metal tab at the end of the second neutral tab 424 close to the second connecting metal piece 40B and the extension plane of the metal tab at the other end of the second neutral tab 424 away from the second connecting metal piece 40B are parallel to the panel, and the extension plane of the upward bending structure in the middle of the second neutral tab 424 is perpendicular to the panel 10. The structure of the second neutral tab 424, especially the metal tab of the part of the upward bending structure in the middle, can reduce the occupied space of the third cavity 53, thereby giving the right side of the first cavity 51 room. Figure 3-4

[0050] Figure 3 The electrical connecting assembly 40, the first contact assembly 41, and the second contact assembly 42 in the above examples are different assemblies, but some combinations of parts thereof can be integrally formed. For example, as shown in FIG. 6, the first neutral pin 411, the first neutral tab 414, the second connecting metal piece 40B, the second neutral pin 421, and the second neutral tab 424 are integrally formed. For another example, the second live tab 416, the first connecting metal piece 40A, and the fourth live tab 426 are integrally formed. In some other examples, the plurality of structures in the electrical connecting assembly 40, the first contact assembly 41, and the second contact assembly 42 can be combined by mechanical connection. In the example of integrally formed, the complexity of manufacturing can be reduced. Figure 3 Figure 3 In some embodiments, a clamping groove can be provided on the base to fix the USB circuit board 20, so as to separate the USB circuit board 20 and the metal pieces. In some other embodiments, an insulating piece can be provided between the USB circuit board 20 and the metal pieces.

[0051] In some embodiments, a clamping groove can be provided on the base to fix the USB circuit board 20, so as to separate the USB circuit board 20 and the metal pieces. In some other embodiments, an insulating piece can be provided between the USB circuit board 20 and the metal pieces.

[0052] ​​Reference will now be made to Figure 5 , Figure 5 A perspective exploded view of a wall socket 100 according to an embodiment of the present application is shown. The wall socket 100 comprises a faceplate 10, a USB circuit board 20, an insulating member 30 and a base 50. The faceplate 10 is located on the front surface of the socket 100, and the faceplate 10 has through holes corresponding to the USB interface, the power interface and the switch. The base 50 is located on the back surface of the socket 100. The space between the faceplate 10 and the base 50 can accommodate the USB circuit board 20, the insulating member 30 and the metal member. The insulating member 30 is used to insulate the USB circuit board 20 and the metal member. The metal member comprises an electrical connection assembly 40, a first contact assembly 41 and a second contact assembly 42.

[0053] Figure 6 A structural diagram of the USB circuit board 20 and the insulating member 30 according to an embodiment of the present application is shown. The USB circuit board 20 is located above the insulating member 30. The insulating member 30 is made of insulating material, such as plastic. The insulating member 30 has an open rectangular cuboid structure, and the bottom of the insulating member 30 is a plate-shaped body 34, and the plate-shaped body 34 has vertical plates around it. The recessed part of the insulating member 30 is used to accommodate the USB circuit board 20. The plate-shaped body 34 is used to separate the USB circuit board located on one side of the insulating member 30 from the electrical connection assembly 40 located on the other side of the insulating member 30. The vertical plates around the insulating member 30 can separate the USB circuit board 20 from the first and second electrical contact assemblies 41 and 42.

[0054] Specifically, the plate-shaped body 34 is located between the USB circuit board 20 and the electrical connection assembly 40, and from the perspective of the back side of the socket, the plate-shaped body 34 covers the USB circuit board 20. Since the electrical connection assembly 40 is located on the back side of the USB circuit board 20, it does not need to occupy the position of the USB circuit board 20 in its extension plane. In addition, since the first and second electrical contact assemblies 41 and 42 converge to both sides, these increase the area of the USB circuit board, so that more components can be arranged on the USB circuit board. The charging power of the USB circuit board can be increased to 45W or even 65W. When the socket is used to charge a mobile phone, the charging efficiency can be improved. The socket can also be used to charge large power devices such as notebook computers.

[0055] In some embodiments, the USB circuit board takes power through welding. Specifically, the contacts on the USB are connected to the conductive sheets of the live wire and the neutral wire through welding wires. This way, when installing the socket, the welding of the wires needs to be done manually, which is not conducive to automated production.

[0056] Figure 6In the example shown, the back of the USB circuit board 20 is provided with a zero line power pin 21 and a fire line power pin 22. Correspondingly, the plate-shaped main body of the insulating piece 30 is provided with a first through hole 31 and a second through hole 32. The zero line power pin 21 can pass through the first through hole 31 to contact the second connecting metal piece 40B, and the fire line power pin 22 can pass through the second through hole 32 to contact the first connecting metal piece 40A.

[0057] The zero line power pin 21 and the fire line power pin 22 are provided with springs inside. When the USB circuit board 20 is fixed, the springs are pressed, and the zero line power pin 21 and the fire line power pin 22 are pressed to contact the corresponding metal pieces, which can avoid shaking and ensure good contact. Figure 2 In the example shown in FIG. 4, it is shown that the USB circuit board 20 can be mounted on the screw column 54 of the base through a screw.

[0058] Now back to Figure 4 Due to the U-shaped structure of the first connecting metal piece 40A protruding towards the second connecting metal piece 40B, the distance between the first connecting metal piece 40A and the second connecting metal piece 40B is reduced, which facilitates the zero line power pin 21 and the fire line power pin 22 to take power.

[0059] Figure 4 It is also shown that the first metal sheet 90 and the second metal sheet 91. The bending of the first connecting metal piece 40A can give the first metal sheet 90 room to increase the area of the first metal sheet. For another example, Figure 5 The base 50 is provided with a heat dissipation hole 55 corresponding to the positions of the first metal sheet 90 and the second metal sheet 91. The heat dissipation hole 55 includes a plurality of densely arranged small holes. The first metal sheet 90 and the second metal sheet 91 are located in front of the heat dissipation hole 55. In this way, the heat generated by the USB circuit board 20 can be conducted to the outside of the heat dissipation hole 55 through the first metal sheet 90 and the second metal sheet 91. The first metal sheet 90 and the second metal sheet 91 can be made of copper, aluminum or other metal materials. In addition, the two metal sheets 90, 91 are located in the same plane. The plane can be parallel to the plate-shaped main body 34 of the insulating piece 30 and the USB circuit board 20. In this way, the USB circuit board 20, the plate-shaped main body 34 and the electrical connection assembly 40 can be arranged in close contact, which can save the internal space of the socket 100 as much as possible.

[0060] Now referring to Figure 6 The bottom of the USB circuit board is also provided with a shielding power pin 23, and the plate-shaped main body 34 of the insulating piece 30 is also provided with a third through hole 33. The shielding power pin 23 passes through the third through hole 33 to contact the first metal sheet 90. This arrangement can shield the power module on the front side of the USB circuit board from EMI interference.

[0061] Figure 5As shown in FIG. 1, the intermediate panel 60 is provided between the front panel 10 and the USB circuit board 20 in the socket 100. Similar to the front panel 10, the intermediate panel 60 is provided with through holes corresponding to the USB interfaces, the power interfaces, and the switches, and the through holes are matched with the through holes on the front panel 10 in position. The intermediate panel 60 is mounted inside the front panel 10. The front panel 10 and the intermediate panel 60 can be fixed by clamping, and the intermediate panel 60 and the base 50 can be fixed by rivets. Compared with rivet connection, clamping is more convenient for disassembly. When the socket 100 needs to be installed on a wall of different color, the front panel 10 of different color can be replaced to match the color of the wall.

[0062] The surface of the intermediate panel 60 is provided with a recess 61, which avoids the positions of the power interfaces 13, 14 and the switch buttons 11, 12. The recess 61 is provided with a heat dissipation plate 62. The heat dissipation plate 62 avoids the positions of the USB interfaces 15, 16. In some examples, the heat dissipation plate includes one or more of a graphene heat dissipation plate, a graphite heat dissipation plate, and a metal heat dissipation plate.

[0063] The USB circuit board 20 is provided with USB interfaces and other components (not shown in the figure). The positions of the USB interfaces are consistent with the positions of the corresponding through holes on the front panel 10 and the intermediate panel 60. The terms “front”, “back” or back surface in the present application are based on the socket in the installed state.

[0064] Reference is now made to Figure 3-4 The second live wire connecting piece 416 is also used for connecting with an external live wire. A protruding live wire connecting piece 418 is provided near the end of the second live wire connecting piece 416. The socket 100 further includes a live wire terminal 92, and the live wire connecting piece 418 is connected with the external live wire through the live wire terminal 92.

[0065] The second neutral wire connecting piece 424 is also used for connecting with an external neutral wire. A neutral wire connecting piece 428 is provided on the other end of the second neutral wire connecting piece 424, i.e. the end away from the second neutral wire pin 421. The socket 100 further includes a neutral wire terminal 93, and the neutral wire connecting piece 428 is connected with the external neutral wire through the neutral wire terminal 93.

[0066] The socket 100 further includes a switch for controlling the power supply of the pins on both sides. Please refer to Figure 3 The socket 100 further includes a first movable contact piece 95 and a second movable contact piece 96.

[0067] The other end of the first live wire connecting piece 415 is provided with a first fixed contact piece 419, and the other end of the third live wire connecting piece 425 is provided with a second fixed contact piece 429. The first fixed contact piece 419 is bent to form an L shape at the end of the first live wire connecting piece 415. The second fixed contact piece 429 is bent to form an L shape at the end of the third live wire connecting piece 425. Here, left and right are based on the perspective of facing the socket from the front of the socket.

[0068] One end of the second live connection piece 416 is provided with a first support piece 417 configured to support the first movable contact piece 95. The other end of the fourth live connection piece 426 is provided with a second support piece 427 configured to support the second movable contact piece 96. The first support piece 417 is bent upward at one end of the second live connection piece 416 to form an L shape. The second support piece 427 is bent upward at the end of the fourth live connection piece 426 to form an L shape. These bent structures can reduce the occupied space.

[0069] The first movable contact piece 95 is configured to be connected or disconnected with the first fixed contact piece 419 by the dialing of the first switch button 11. The second movable contact piece 96 is configured to be connected or disconnected with the second fixed contact piece 429 by the dialing of the second switch button 12.

[0070] Reference is now made to Figure 5 The socket 100 further comprises a ground metal piece 71 located at the rear side of the base 50, the two ends of which are connected with the first ground pin 413 and the second ground pin 423. The ground metal piece 71 is further provided with a ground connection piece 713. The ground connection piece 713 is connected with the external ground through the ground terminal 94. In Figure 5 In the example shown, the ground metal piece 71 is provided with two symmetrical live terminals 94.

[0071] The socket 100 further comprises two anti-misplug devices 80, each of which is provided with three blocking pieces. The front side of the anti-misplug device 80 is provided with a resilient component 81. The anti-misplug device 80 is connected with the faceplate through the resilient component 81. The resilient component 81 can be a spring.

[0072] It can be understood that the socket 100 comprises two power interfaces, corresponding to two sets of pins. In other examples, the socket can comprise more power interfaces, for example, three, four.

[0073] The above description is only optional embodiments of the present application, and is not intended to limit the embodiments of the present application. For those skilled in the art, the embodiments of the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the embodiments of the present application shall be included in the protection of the embodiments of the present application.

[0074] Although the embodiments of the present application have been described with reference to several specific embodiments, it should be understood that the embodiments of the present application are not limited to the disclosed specific embodiments. The embodiments of the present application are intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. The scope of the appended claims is the broadest interpretation under the law, encompassing all such modifications and equivalent structures and functions.

Claims

1. A wall power socket (100) comprising: A panel (10) and a base (50), wherein, the base (50) is formed with a first cavity (51) and a second cavity (52) and a third cavity (53) respectively located on both sides of the first cavity (51); the first cavity (51) is provided with a circuit board assembly, the second cavity (52) is provided with a first electrical contact assembly (41), and the third cavity (53) is provided with a second electrical contact assembly (42); the first electrical contact assembly (41) converges into the second cavity (52) in a direction away from the first cavity (51), so that at least part of the first cavity (51) extends into the second cavity (52); and the second electrical contact assembly (42) converges into the third cavity (53) in a direction away from the first cavity (51), so that at least part of the first cavity (51) extends into the third cavity (53).

2. The wall power socket (100) according to claim 1, wherein, Further comprising an electrical connection assembly (40), wherein the electrical connection assembly (40) connects the first electrical contact assembly (41) and the second electrical contact assembly (42), and the electrical connection assembly (40) comprises a first connecting metal piece (40A) and a second connecting metal piece (40B).

3. The wall power socket (100) according to claim 2, wherein, The first electrical contact assembly (41) comprises a first neutral pin (411), a first live pin (412), a first ground pin (413), a first neutral connecting piece (414), a first live connecting piece (415), and a second live connecting piece (416), wherein, one end of the first neutral connecting piece (414) is connected with the first neutral pin (411), and the other end of the first neutral connecting piece (414) is connected with the second connecting metal piece (40B); one end of the first live connecting piece (415) is connected with the first live pin (412), the other end of the first live connecting piece (415) is connected with one end of the second live connecting piece (416), the first live connecting piece (415) comprises a plurality of bending structures, and the extension plane of the bending structure close to one end of the first live connecting piece (415) is perpendicular to the panel (10); and the other end of the second live connecting piece (416) is connected with the first connecting metal piece (40A).

4. The wall power socket (100) according to claim 3, wherein, The second electrical contact assembly (42) comprises a second neutral pin (421), a second live pin (422), a second ground pin (423), a second neutral connecting piece (424), a third live connecting piece (425), and a fourth live connecting piece (426), wherein, one end of the second neutral connecting piece (424) is connected with the second connecting metal piece (40B), the second neutral connecting piece (424) is provided with the second neutral pin (421) at one end, the second neutral connecting piece (424) comprises a plurality of bending structures, and the extension plane of the upward bending structure in the middle of the second neutral connecting piece (424) is perpendicular to the panel (10); and the other end of the second live connecting piece (426) is connected with the second connecting metal piece (40B). One end of the third live wire connecting piece (425) is connected with the second live wire pin (422), and the other end of the third live wire connecting piece (425) is connected with one end of the fourth live wire connecting piece (426); and The other end of the fourth live wire connecting piece (426) is connected with the first connecting metal piece (40A).

5. The wall power socket (100) according to claim 4, wherein, The first neutral wire pin (411), the first neutral wire connecting piece (414), the second connecting metal piece (40B), the second neutral wire pin (421) and the second neutral wire connecting piece (424) are integrally formed.

6. The wall power socket (100) of claim 4, wherein, The second live wire connecting piece (416), the first connecting metal piece (40A) and the fourth live wire connecting piece (426) are integrally formed.

7. The wall power socket (100) of claim 2, wherein, The first connecting metal piece (40A) comprises a U-shaped structure protruding towards the second connecting metal piece (40B).

8. The wall power socket (100) of claim 2, wherein, The circuit board assembly comprises a USB circuit board (20) and an insulating piece (30), wherein the insulating piece (30) is configured to insulate the USB circuit board (20) from the electrical connection assembly (40).

9. The wall power socket (100) according to claim 8, wherein, The insulating piece (30) comprises a plate-shaped body (34) located between the USB circuit board (20) and the electrical connection assembly (40).

10. The wall power socket (100) according to claim 9, wherein, The back of the USB circuit board (20) is provided with a neutral wire power pin (21) and a live wire power pin (22), the plate-shaped body (34) is provided with a first through hole (31) and a second through hole (32), the neutral wire power pin (21) passes through the first through hole (31) and contacts the second connecting metal piece (40B), and the live wire power pin (22) passes through the second through hole (32) and contacts the first connecting metal piece (40A).

11. The wall power socket (100) according to claim 9, wherein, Further comprising a first metal piece (90) and a second metal piece (91), the base is provided with a heat dissipation hole (55), and the first metal piece (90) and the second metal piece (91) are located in front of the heat dissipation hole (55).

12. The wall power socket (100) according to claim 11, wherein, The back of the USB circuit board (20) is provided with a shielding power pin (23), the plate-shaped body (34) is provided with a third through hole (33), and the shielding power pin (23) passes through the third through hole (33) and contacts the first metal piece (90).

13. The wall power socket (100) of claim 1, wherein, Further comprising an intermediate panel (60) located in the panel (10).

14. The wall power socket (100) according to claim 13, wherein, The surface of the intermediate panel (60) is provided with a groove (61), and the groove (61) is provided with a heat dissipation plate (62).

15. The wall power socket (100) according to claim 14, wherein, The heat dissipation plate (62) comprises one or more of a graphene heat dissipation plate, a graphite heat dissipation plate and a metal heat dissipation plate.

16. The wall power socket (100) of claim 4, wherein, Further comprising a first switch button (11), a second switch button (12), a first fixed contact (419), a second fixed contact (429), a first movable contact (95) and a second movable contact (96), wherein, The first fixed contact (419) is located at the other end of the first live wire connecting piece (415), and the second fixed contact (429) is located at the other end of the third live wire connecting piece (425); One end of the second live wire connecting piece (416) is provided with a first supporting piece (417) configured to support the first movable contact piece (95), and the fourth live wire connecting piece (426) is provided with a second supporting piece (427) configured to support the second movable contact piece (96); and The first movable contact piece (95) is configured to be connected or disconnected with the first fixed contact piece (419) by the dialing of the first switch button (11), and the second movable contact piece (96) is configured to be connected or disconnected with the second fixed contact piece (429) by the dialing of the second switch button (12).

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