AC / DC dual-purpose wall adapter socket structure

Abstract

A wall-mounted adapter for both AC and DC power supply includes a housing extending along a first direction. The housing includes a receiving space, an AC power socket area, and a DC power socket area. A circuit board is disposed in the receiving space. The circuit board has a first configuration area, a second configuration area, and at least one connection area. The first and second configuration areas are located on opposite sides along the first direction, forming a circuit board space between them. The AC power socket area is located correspondingly within the circuit board space, and the aforementioned connection area connects the first and second configuration areas. A power pin is disposed in the housing, correspondingly located between the first and second configuration areas. At least one DC power output port is disposed in the first and / or second configuration areas, and the DC power output port is located correspondingly in the DC power socket area. An AC power socket is disposed in the AC power socket area, and the AC power socket is electrically connected directly or indirectly to the power pin.

Description

Technical Field

[0001] This invention relates to a wall-mounted adapter for both AC and DC power, specifically an invention that allows electronic components mounted on a circuit board to be appropriately distributed in a first configuration area and a second configuration area on opposite sides of the power plug, with the AC power socket area in the center, so that the weight of the electronic components on the circuit board is not excessively concentrated on the same side of the power plug. Background Technology

[0002] Common household power supplies include 110V or 220V AC power. However, most portable electronic devices, such as smartwatches, mobile phones, tablets, laptops, and handheld game consoles, are equipped with rechargeable batteries and are no longer limited to being connected to AC wall sockets when in use. When charging these portable electronic devices, a charger is often connected to the wall socket. The charger converts the AC voltage supplied by the wall socket into DC voltage, and then outputs DC voltage from the charger's DC output port, such as a Type A USB port or a Type C USB port, to power the portable electronic device.

[0003] To enable the adapter socket to simultaneously provide both DC and AC voltage, both DC and AC output ports are provided on the adapter socket. For example, the People's Republic of China Patent Publication No. CN206962155U, entitled "A Power Socket with DC Charging and AC Socket Functions," includes at least one socket body. The socket body has a hexahedral structure. Two opposite sides along the length of the socket body are provided with a power input interface and a power output interface that are electrically connected to each other. At least one side of the four sides surrounding the length of the socket body is provided with an output slot, which is electrically connected to the power input interface. An AC / DC conversion unit is provided inside the socket body.

[0004] However, in the aforementioned adapter socket, the power input and power output interfaces are located on opposite sides. The power input interface is plugged into the wall socket via pins. When an external plug is connected to the power output interface, the weight of the plug and the connected wire will generate torque on the power input interface, causing the aforementioned extension cord or adapter socket to sway downwards relative to the wall socket. Over time, this can cause the wall socket's pin clips to loosen, making it unable to maintain the required clamping force. If left unattended or used continuously, the insufficient clamping force of the pin clips when using the aforementioned extension cord or adapter socket may result in an excessively small contact point, leading to overheating and damage to the aforementioned device.

[0005] The People's Republic of China Patent Publication No. CN201466427U, entitled "A Multifunctional Socket", includes a base with an AC power socket and a USB socket.

[0006] The "Socket with Lighting and USB Interface" patent announcement No. CN201541034U of the People's Republic of China comprises a box-shaped structure consisting of a lampshade and a housing that are movably connected to each other. The lampshade contains a mounting plate and a plurality of LED lights. A switch connected to the electrodes of the LED lights is located outside the lampshade. A plurality of sockets and USB interfaces are arranged sequentially on the panel. A plurality of switches are arranged sequentially parallel to the sockets and interfaces. Each switch controls the power supply to one socket and interface parallel to the switch. A plug is fixed on the base plate. An AC / DC conversion circuit is provided in the cavity, with its input end connected to an AC power source and its output end connected to one or more USB interfaces.

[0007] The "A Adapter-Type Multifunctional Socket" according to the People's Republic of China Patent Publication No. CN213936807U includes: a movable plug and a fixed socket. The fixed socket has an insertion slot on the back of its front end, and three contact terminals on the rear side of the insertion slot. A high-voltage AC socket is located at the front end inside the fixed socket, and socket terminals are located inside the high-voltage AC socket. The socket terminals are electrically connected to the contact terminals, and a corresponding socket through hole is provided on the fixed socket. A conversion circuit board is located at the rear end inside the fixed socket, and the conversion circuit board is electrically connected to the contact terminals. A USB socket is located on the conversion circuit board, and a corresponding USB socket through hole is provided on the fixed socket. The movable plug is embedded in the insertion slot of the fixed socket. A power-connecting prong is located on the back of the movable plug, and an embedded notch is located at the lower end of the front of the movable plug, with a terminal clip inside the notch.

[0008] However, in the aforementioned adapter sockets, the prongs are all located close to one side of the adapter socket, while the DC power socket area and / or AC power socket area are located away from the prongs and on the other side of the adapter socket. When a DC power socket area is included, high-voltage to low-voltage and DC output electronic components must be installed inside the adapter socket. Generally, electronic components have weight, and this weight increases with the wattage supplied. Therefore, the adapter socket also suffers from an unbalanced weight distribution, leading to the problem of the wall socket's prong clips loosening over long-term use.

[0009] To more clearly illustrate the problems caused by the unbalanced weight distribution in the previous adapter socket, please refer to [link / reference]. Figure 12 , Figure 13 and Figure 14In the above configuration, due to the uneven weight distribution of adapter socket A, the center of gravity is biased towards the electronic components, i.e., the AC socket area B or DC socket area C. When adapter socket A is used, and the wall socket D is inserted through pin A1, adapter socket A will tilt due to its own center of gravity, generating a torque at the connection point of pin A1 into wall socket D. Over prolonged use, this will cause pin A1 to widen the clamping gap of the internal pin clips of wall socket D, thus preventing the internal pin clips of wall socket D from providing the required clamping force.

[0010] Furthermore, in addition to the problem of uneven weight distribution in adapter socket A itself, when many electrical plugs are connected to adapter socket A, but the plugs are all far from the pin A1 of adapter socket A, the weight of the plugs plus the wires will also generate torque on the connection point of pin A1 when it is inserted into the wall socket D, which will make the aforementioned swaying of adapter socket A more serious. Summary of the Invention

[0011] Therefore, the purpose of this invention is to provide a wall-mounted adapter socket structure that prevents the adapter socket from wobbling due to uneven weight distribution when installed on a wall socket, and to prevent the wall socket from loosening due to failure to maintain the specified clamping force during long-term use.

[0012] This invention provides a wall-mounted adapter for both AC and DC power, comprising:

[0013] A housing extending along a first direction includes a receiving space, an AC power socket area, and a DC power socket area; a circuit board disposed in the receiving space, the circuit board having a first configuration area, a second configuration area, and at least one connection area, the first configuration area and the second configuration area being located on opposite sides of the first direction, forming a circuit board space between the first configuration area and the second configuration area, the AC power socket area being correspondingly located in the circuit board space, and the aforementioned connection area connecting the first configuration area and the second configuration area; a power plug disposed in the housing, the power plug being correspondingly located between the first configuration area and the second configuration area; at least one DC power output port disposed in the first configuration area and / or the second configuration area, the DC power output port being correspondingly located in the DC power socket area; and an AC power socket disposed in the AC power socket area, the AC power socket being directly or indirectly electrically connected to the power plug.

[0014] Furthermore, the power plug includes a live wire plug and a neutral wire plug, and an AC conductive plate is disposed in the AC socket. The AC conductive plate includes a live wire conductive plate and a neutral wire conductive plate. The live wire conductive plate is directly connected to the live wire plug, and the neutral wire conductive plate is directly connected to the neutral wire plug. The live wire conductive plate includes a first live wire slot, and the neutral wire conductive plate includes a first neutral wire slot. The housing has a first live wire socket corresponding to the first live wire slot, and the housing has a first neutral wire socket corresponding to the first neutral wire slot.

[0015] Furthermore, the housing includes a front and a back, with the power plug located on the back and the first live wire socket and the first neutral wire socket located on the front.

[0016] Furthermore, the AC conductive sheet includes a grounding conductive sheet, which is electrically connected to a grounding screw. The grounding screw is disposed in the housing, and the housing has a grounding socket corresponding to the grounding conductive sheet, which is located on the front side.

[0017] Furthermore, the housing includes a side surface located between the front and the back surfaces. The live wire conductive sheet includes a second live wire slot, the neutral wire conductive sheet includes a second neutral wire slot, the housing has a second live wire socket corresponding to the second live wire slot, and the housing has a second neutral wire socket corresponding to the second neutral wire slot. The second live wire socket and the second neutral wire socket are located on the side surface.

[0018] Furthermore, the DC socket area is located on one side of the AC socket area in the first direction.

[0019] Furthermore, the DC power socket area is located on opposite sides of the AC power socket area in the first direction.

[0020] Furthermore, the housing has one or more DC sockets in the DC socket area corresponding to the DC output port.

[0021] Furthermore, the circuit board is arranged in a U-shape.

[0022] Furthermore, the circuit board has two connection areas located on opposite sides of a second direction, which is perpendicular to the first direction.

[0023] Furthermore, it includes a switch disposed in the housing, the switch being electrically connected between the power plug and the AC socket.

[0024] The following effects can be achieved based on the above technical features:

[0025] 1. The electronic components on the circuit board can be appropriately distributed in the first configuration area and the second configuration area. When the adapter is connected to the wall socket via the power plug, the weight is distributed in the first configuration area and the second configuration area on both sides of the power plug, so that the weight of the adapter is more even. This avoids the weight being too concentrated on the same side of the power plug, which would cause the adapter to swing too much.

[0026] 2. The AC power socket area is located in the circuit board space, that is, between the first configuration area and the second configuration area. Since the power plugs and cords of AC power are usually heavy, when the external power plug is connected to the AC power socket area, the centrally located AC power socket area can prevent the power plug and cord from exerting excessive torque on the power pins of the adapter socket, causing poor contact between the power pins of the adapter socket and the wall socket, or even causing the adapter socket to fall off.

[0027] 3. The DC power socket area is located on opposite sides of the power plug, so the weight of the connected wires will not be concentrated on the same side of the power plug, and will not generate undue torque on the power plug.

[0028] 4. The first configuration area and the second configuration area of ​​the circuit board can have the same configuration or different configurations. For example, the first configuration area and the second configuration area can each provide 20 watts of DC power output, or the first configuration area can provide 20 watts of DC power output and the second configuration area can each provide 35 watts of DC power output. Attached Figure Description

[0029] Figure 1 This is a perspective view of the present invention.

[0030] Figure 2 This is a perspective view of the present invention.

[0031] Figure 3 This is an exploded view of the present invention.

[0032] Figure 4 This is a partial top view of the present invention.

[0033] Figure 5 This is a partial cross-sectional view of the AC socket area of ​​the present invention.

[0034] Figure 6 This is a partial cross-sectional view of the AC socket area of ​​the present invention.

[0035] Figure 7 This is a schematic diagram illustrating the use of the present invention.

[0036] Figure 8 This is a schematic diagram illustrating the use of the present invention.

[0037] Figure 9 This is a schematic diagram illustrating the use of another embodiment of the present invention.

[0038] Figure 10 This is a schematic diagram illustrating the use of another embodiment of the present invention.

[0039] Figure 11 This is an external view of a circuit board according to another embodiment of the present invention.

[0040] Figure 12 This is a schematic diagram illustrating the use of existing adapter sockets.

[0041] Figure 13 This is a schematic diagram illustrating the use of existing adapter sockets.

[0042] Figure 14 This is a schematic diagram illustrating the use of existing adapter sockets.

[0043] Explanation of reference numerals in the attached drawings: 1-House; 1A-Upper house; 1B-Lower house; 11-Accommodation space; 12, 12A-AC socket area; 13, 13A-DC socket area; 14-Front side; 141-First live wire socket; 142-First neutral wire socket; 143-Grounding wire socket; 144-DC socket; 15-Rear side; 16-Side side; 161-Second live wire socket; 162-Second neutral wire socket; 2-AC socket; 21-Live wire accommodating area; 22-Neutral wire accommodating area; 23-Grounding wire accommodating area; 3, 3B-Circuit board; 31, 31A-DC output port; 32, 32B-First configuration area; 3 3,33B - Second configuration area; 34,34B - Connection area; 35,35B - Circuit board space; 4 - Power pin; 41 - Live wire pin; 42 - Neutral wire pin; 5 - Switch; 6 - AC conductive plate; 61 - Live wire conductive plate; 611 - First live wire slot; 612 - Second live wire slot; 62 - Neutral wire conductive plate; 621 - First neutral wire slot; 622 - Second neutral wire slot; 63 - Grounding wire conductive plate; 631 - Grounding wire slot; 7 - Grounding screw; 8 - Wall socket; D1 - First direction; D2 - Second direction; A - Adapter socket; A1 - Pin; B - AC socket area; C - DC socket area; D - Wall socket. Detailed Implementation

[0044] Based on the above technical features, the main functions of the AC / DC dual-use wall adapter socket structure of the present invention will be clearly demonstrated in the following embodiments.

[0045] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The AC / DC dual-use wall adapter socket of the present invention comprises a housing 1, an AC socket 2, a circuit board 3, a power plug 4, a switch 5, an AC conductive plate 6, and a grounding screw 7.

[0046] The housing 1 extends along a first direction D1 and includes a receiving space 11, an AC power socket area 12, and a DC power socket area 13. The DC power socket area 13 is located on one side of the AC power socket area 12 in the first direction D1. Specifically, the housing 1 has a front side 14, a back side 15, and a side side 16, and is composed of an upper housing 1A and a lower housing 1B. The front side 14 is located on the upper housing 1A, and the back side 15 is located on the lower housing 1B. The upper housing 1A covers the lower housing 1B to form the receiving space 11. The side side 16 is located between the front side 14 and the back side 15. The housing 1 has a first live wire socket 141, a first neutral wire socket 142, a ground wire socket 143, and a plurality of DC power sockets 144 on the front side 14, and a second live wire socket 161 and a second neutral wire socket 162 on the side side 16.

[0047] The AC socket 2 is located in the receiving space 11 and is corresponding to the AC socket area 12. The AC socket 2 has a live wire receiving area 21, a neutral wire receiving area 22 and a ground wire receiving area 23. The live wire receiving area 21 and the neutral wire receiving area 22 are arranged on opposite sides of the ground wire receiving area 23 along the first direction D1.

[0048] The circuit board 3 is disposed in the receiving space 11. The circuit board 3 has a plurality of DC power output ports 31, a first configuration area 32, a second configuration area 33, and a connection area 34. The first configuration area 32 and the second configuration area 33 are located on opposite sides in the first direction D1, and a circuit board space 35 is formed between the first configuration area 32 and the second configuration area 33. The AC power socket area 12 is disposed corresponding to the circuit board space 35. The connection area 34 connects the first configuration area 32 and the second configuration area 33. The aforementioned DC power output ports 31 are disposed in the second configuration area 33, and the DC power output ports 31 are correspondingly located in the DC power socket area 13. Specifically, in this embodiment, the first configuration area 32, the second configuration area 33, and the connection area 34 form a U-shape. The first configuration area 32 is provided with electronic components that convert AC voltage into DC voltage, such as rectifiers, capacitors, resistors and inductors, while the second configuration area 33 is provided with related electronic components that output DC voltage, such as DC output port 31 and power management IC. The aforementioned DC output port 31 includes two USB Type-C connectors and two USB Type-A connectors, but is not limited thereto.

[0049] The power plug 4 is disposed on the housing 1, and the power plug 4 is located between the first configuration area 32 and the second configuration area 33; specifically, the power plug 4 is disposed on the back side 15, and the power plug 4 includes a live wire plug 41 and a neutral wire plug 42.

[0050] Please see Figure 1 , Figure 3 , Figure 5 and Figure 6 The AC conductive plate 6 is disposed in the AC socket 2, and the AC socket 2 is electrically connected to the power plug 4 directly or indirectly via the AC conductive plate 6. Specifically, the AC conductive plate 6 includes a live wire conductive plate 61, a neutral wire conductive plate 62, and a ground wire conductive plate 63. The live wire conductive plate 61 is disposed in the live wire receiving area 21, the neutral wire conductive plate 62 is disposed in the neutral wire receiving area 22, and the ground wire conductive plate 63 is disposed in the ground wire receiving area 23. The live wire conductive plate 61 is directly connected to the live wire plug 41, and the neutral wire conductive plate 62 is directly connected to the neutral wire plug 42. The live wire conductive plate 61 includes a first live wire slot 611 and a second live wire slot 612. Hole 141 is positioned corresponding to the first live wire slot 611, and the second live wire socket 161 is positioned corresponding to the second live wire slot 612. The neutral wire conductive plate 62 includes a first neutral wire slot 621 and a second neutral wire slot 622. The first neutral wire socket 142 is positioned corresponding to the first neutral wire slot 621, and the second neutral wire socket 162 is positioned corresponding to the second neutral wire slot 622. The grounding wire conductive plate 63 has a grounding wire slot 631, and the grounding wire socket 143 is positioned corresponding to the grounding wire slot 631.

[0051] The switch 5 is disposed on the housing 1 and is electrically connected between the power plug 4 and the AC socket 2. Specifically, in addition to directly connecting the power plug 4 to the AC socket 2, the switch 5 can also be disposed between the power plug 4 and the AC socket 2 to control the conduction or interruption of current. For example, the switch 5 can be connected to the live wire conductive piece 61 to control the conduction or interruption of the live wire current, or the switch 5 can be connected to the neutral wire conductive piece 62 to control the conduction or interruption of the neutral wire current.

[0052] The grounding screw 7 is located on the side 16 of the housing 1 and is electrically connected to the grounding wire conductive piece 63.

[0053] Please see Figure 3 , Figure 7 and Figure 8When using this AC / DC dual-use wall adapter, because the first configuration area 32 and the second configuration area 33 of the circuit board 3 inside the housing 1 are located on opposite sides of the power pin 4 along the first direction D1, which is parallel to the horizontal direction, the weight generated by the electronic components on the first configuration area 32 and the weight generated by the electronic components on the second configuration area 33 are appropriately distributed on opposite sides of the power pin 4, without being excessively concentrated on the same side of the power pin 4. When the AC / DC dual-use wall adapter is installed on a wall socket 8 through the power pin 4, the AC / DC dual-use wall adapter will not tilt or sway excessively with the power pin 4 as a fulcrum. Furthermore, when an external power cord is connected to the AC socket area 12 and the DC socket area 13, the power cord itself has weight and will generate torque with the power pin 4 as the fulcrum, affecting the structure of the AC / DC dual-use wall adapter. However, since the AC socket area 12 is located in the circuit board space 35, and the circuit board space 35 is formed between the first configuration area 32 and the second configuration area 33, and corresponds to the position of the power pin 4, the AC socket area 12 is centered, and the DC socket area 13 is close to the AC socket area 12. This makes both the AC socket area 12 and the DC socket area 13 close to the power pin 4, effectively reducing the torque generated on the power pin 4 due to the weight of the power cord, and avoiding excessive tilting and swaying caused by the structure of the AC / DC dual-use wall adapter.

[0054] Please see Figure 9 and Figure 10 In another embodiment, two DC power socket areas 13A are respectively disposed on opposite sides of an AC power socket area 12A. Each of the aforementioned DC power socket areas 13A is provided with multiple DC power output ports 31A, including USB Type-A connectors and USB Type-C connectors. In this embodiment, the aforementioned DC power socket areas 13A are simultaneously disposed on opposite sides of the AC power socket area 12A, achieving a good balance when both the AC power socket area 12A and the DC power socket area 13A are connected to external power cords.

[0055] Please see Figure 11 In another embodiment, a circuit board 3B has a first configuration area 32B, a second configuration area 33B, and two connection areas 34B. The first configuration area 32B and the second configuration area 33B are located on opposite sides of the first direction D1, and the two connection areas 34B are located on opposite sides of the second direction D2. The first direction D1 is perpendicular to the second direction D2. The first configuration area 32B, the second configuration area 33B, and the two connection areas 34B together define a circuit board space 35B. The remaining configurations are as described in the previous embodiment, and therefore will not be described in detail here.

[0056] Based on the above description of the embodiments, one can fully understand the operation, use, and effects of the present invention. The above embodiments are only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Simple equivalent changes and modifications made in accordance with the claims and description of the invention are all within the scope of the present invention.

Claims

1. A wall-mounted adapter socket for both AC and DC power, characterized in that, Include: A housing extending along a first direction, the housing including a receiving space, an AC power socket area and a DC power socket area; A circuit board is disposed in the receiving space. The circuit board has a first configuration area, a second configuration area, and at least one connection area. The first configuration area and the second configuration area are located on opposite sides in a first direction, and a circuit board space is formed between the first configuration area and the second configuration area. An AC socket area is located in the circuit board space. The aforementioned connection area connects the first configuration area and the second configuration area. The circuit board also has two connection areas located on opposite sides in a second direction, which is perpendicular to the first direction. A power plug is disposed on the housing, and the power plug is located between the first configuration area and the second configuration area; At least one DC power output port is provided in the first configuration area and / or the second configuration area, and the DC power output port is located in the DC power socket area. An AC power outlet is provided in the AC power outlet area, and the AC power outlet is electrically connected directly or indirectly to the power plug.

2. The AC / DC dual-use wall-mounted adapter socket structure as described in claim 1, characterized in that, The power socket includes a live wire pin and a neutral wire pin. An AC conductive plate is disposed in the AC socket. The AC conductive plate includes a live wire conductive plate and a neutral wire conductive plate. The live wire conductive plate is directly connected to the live wire pin, and the neutral wire conductive plate is directly connected to the neutral wire pin. The live wire conductive plate includes a first live wire slot, and the neutral wire conductive plate includes a first neutral wire slot. The housing has a first live wire socket corresponding to the first live wire slot, and the housing has a first neutral wire socket corresponding to the first neutral wire slot.

3. The AC / DC dual-use wall-mounted adapter socket structure as described in claim 2, characterized in that, The housing includes a front and a back, with the power plug located on the back and the first live wire socket and the first neutral wire socket located on the front.

4. The AC / DC dual-use wall adapter socket structure as described in claim 3, characterized in that, The AC conductive plate includes a grounding conductive plate, which is electrically connected to a grounding screw. The grounding screw is disposed in the housing, and the housing has a grounding socket corresponding to the grounding conductive plate. The grounding socket is located on the front side.

5. The AC / DC dual-use wall adapter socket structure as described in claim 3, characterized in that, The housing includes a side side located between the front and the back. The live wire conductive piece includes a second live wire slot, and the neutral wire conductive piece includes a second neutral wire slot. The housing has a second live wire socket corresponding to the second live wire slot and a second neutral wire socket corresponding to the second neutral wire slot. The second live wire socket and the second neutral wire socket are located on the side side.

6. The AC / DC dual-use wall-mounted adapter socket structure as described in claim 1, characterized in that, The DC socket area is located on one side of the AC socket area in this first direction.

7. The AC / DC dual-use wall-mounted adapter socket structure as described in claim 1, characterized in that, The DC socket area is located on opposite sides of the AC socket area in the first direction.

8. The AC / DC dual-use wall adapter socket structure as described in claim 1, characterized in that, The housing has one or more DC sockets in the DC socket area corresponding to the DC output port.

9. The AC / DC dual-use wall adapter socket structure as described in claim 1, characterized in that, The circuit board is arranged in a U-shape.

10. The AC / DC dual-use wall adapter socket structure as described in any one of claims 1 to 9, characterized in that, It further includes a switch disposed in the housing and electrically connected between the power plug and the AC socket.

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