TWI839083B - Circuit board configuration method for dual-purpose power adapter - Google Patents

Abstract

The present invention relates to a circuit board configuration method for dual-purpose power adapter, for solving the inconvenience-in-use problem and safety concern of the existing adapters. The method includes the following steps: providing a housing extending in a first direction and having a first end and second end; setting an AC socket and a projecting power pin between the firs end and the second end, with the AC socket and the power pin being located on different sides of the housing; setting a first circuit board and a second circuit board in the housing so that the first circuit board is located in a first accommodation space on the first end, and the second circuit board is located in a second accommodation space on the second end; and setting at least a DC socket on the first circuit board and/or the second circuit board. Thereby, a weight balance effect is achieved for the dual-purpose power adapter.

Description

Circuit board configuration method for wall-mounted AC/DC dual-purpose adapter socket

The present invention relates to a circuit board configuration method for a wall-mounted AC/DC dual-purpose adapter socket, particularly a method in which the AC socket and the power pin are located in the center, and the first circuit board and the second circuit board are located on both sides of the AC socket, respectively, so that the wall-mounted AC/DC dual-purpose adapter socket can have a more balanced weight distribution.

The demand for charging electronic devices with a DC socket is becoming more and more common, so the number of products that integrate AC sockets and DC sockets into one adapter socket is also increasing. For example, the adapter sockets disclosed in Patent Announcements No. CN201466427U, No. CN201541034U, No. CN206962155U and No. CN213936807U of the People's Republic of China respectively include AC sockets and DC sockets at the same time, and a power plug for plugging into a wall socket is provided on one side of the adapter socket. Thus, the user only needs to plug the power plug of the adapter socket into the wall socket or other AC socket, and the power plugs of devices with different power consumption types can be plugged into the AC socket and DC socket of the adapter socket respectively to obtain power at the same time.

Although the adapter socket of the above patent allows users to use AC and DC sockets simultaneously, the weight of the circuit board of the adapter socket increases due to the need for more DC sockets or the supply of higher wattage DC power. Currently, the circuit board of the known adapter socket is a single-piece type, and the position of the power pin and the setting position of the circuit board do not take into account the condition of weight balance. When the adapter socket is plugged into the wall socket, the circuit board offset to one side will generate additional torque on the power pin of the adapter socket, affecting the firmness of the adapter socket after insertion, so that the adapter socket is more likely to fall off accidentally during use. Especially when the plug of an electrical appliance or electronic device is plugged into the adapter socket, due to the increased weight attached to the adapter socket and the improper torque generated by the aforementioned circuit board, the power pin of the adapter socket is prone to loosening with the wall socket, resulting in poor contact and affecting the safety of electricity use.

Please refer to the disclosure of Figures 13 and 14. Due to the uneven overall weight distribution of the known adapter socket Z0, once the plug F0 of the electrical appliance is plugged in, the known adapter socket Z0 will not only tilt relative to the wall socket Q in the first direction X, forming a first tilt angle Z1 (Figure 13), but will also tilt relative to the plugging surface Q1 of the wall socket Q in the second direction Y, forming a second tilt angle Z2 (Figure 14). The generation of the first tilt angle Z1 and the second tilt angle Z2 will cause poor contact between the known adapter socket Z0 and the wall socket Q, and even make the adapter socket Z0 easily fall off the wall socket Q, affecting the safety of electricity use.

Therefore, in view of the above-mentioned defects of the current AC/DC dual-purpose adapter socket, the present invention provides a circuit board configuration method for a wall-mounted AC/DC dual-purpose adapter socket, so that the AC/DC dual-purpose adapter socket can provide an AC socket and a DC socket, while taking into account the overall weight balance of the AC/DC dual-purpose adapter socket, preventing the circuit board from generating an improper torque on the AC/DC dual-purpose adapter socket, and increasing the stability of the AC/DC dual-purpose adapter socket when plugged in. The circuit board configuration method of the wall-mounted AC/DC dual-purpose adapter socket of the present invention comprises the following steps: extending a shell of an AC/DC dual-purpose adapter socket along a first direction; forming a first side and a second side of the shell along the first direction, the shell having a first accommodating space on the first side, and the shell having a second accommodating space on the second side; arranging an AC socket between the first side and the second side; arranging a power plug protruding from the shell between the first side and the second side, and the AC socket and the power plug are not positioned On the same side of the housing, the AC socket is directly or indirectly electrically connected to the power plug; a first circuit board and a second circuit board are arranged in the housing, so that the first circuit board is located in the first accommodation space, the second circuit board is located in the second accommodation space, the first circuit board is electrically connected to the second circuit board, and the first circuit board is directly or indirectly electrically connected to the power plug; at least one DC socket is arranged on the first circuit board and/or the second circuit board, and the DC socket is exposed from the housing and is located on the first side and/or the second side.

A switch is further configured between the aforementioned AC socket and the power plug.

The switch is located between the first side and the second side.

The present invention further configures the housing with a front and a back, the power plug protrudes from the back, and the AC socket includes a first AC socket, which is located on the front.

The present invention further configures a side surface on the housing, the side surface is located between the front surface and the back surface, the AC socket includes a second AC socket, the second AC socket is arranged on the side surface, and the second AC socket is located between the first side and the second side.

The present invention further divides the shell into an upper shell and a lower shell along a second direction, the front side is located at the upper shell, and the back side is located at the lower shell.

According to the above technical features, the present invention can achieve the following effects:

1. The power plug and the AC socket are both placed between the first side and the second side. When the appliance plug is plugged into the AC socket, the appliance plug can be very close to the power plug, so that the total weight of the appliance plug and the power cord will not generate excessive torque on the power plug of the AC/DC dual-purpose adapter socket, which can effectively avoid the problem of the wall-mounted AC/DC dual-purpose adapter socket accidentally detaching from the wall socket during use.

2. The first circuit board and the second circuit board are equipped with electronic components, such as capacitors, inductors, integrated circuits, varistors and DC sockets, etc., so they have a certain weight. The first circuit board and the second circuit board are respectively arranged in the first storage space and the second storage space, which can effectively balance the weight, so that the torque generated by the first circuit board on the power plug can properly balance the torque generated by the second circuit board on the power plug, avoiding the single circuit board biased to one side of the power plug, thereby generating a single torque and causing the disadvantage of improper weight balance of the AC/DC dual-purpose adapter socket.

3. The first circuit board and the second circuit board can be exactly the same circuit board and have the same number of DC sockets, that is, the AC socket is located in the center, and the DC sockets are located on the first side and the second side respectively, which can achieve a better balance effect. Alternatively, the first circuit board and the second circuit board can be circuit boards with different power supply wattages. For example, the first circuit board is a circuit board that can provide 20 watts of DC power, and the second circuit board is a circuit board that can provide 35 watts of DC power. Although the first circuit board and the second circuit board have a slight difference in weight, they are located on the first side and the second side respectively, and can still achieve a good balance effect. Alternatively, the first circuit board is equipped with the electronic components required for the AC-DC conversion circuit, and the second circuit board is equipped with DC sockets and power management IC and other parts, which can also effectively achieve a balance effect.

4. The switch is also located between the first side and the second side, which can effectively prevent the weight of the switch from generating excessive torque on the power pin of the AC/DC dual-purpose adapter socket.

1: AC/DC dual-purpose adapter socket

10: Shell

101: Upper shell

101a: Front

102: Lower housing

102a: Back

103a: Side

11: First side

12: Second side

13: The first storage space

14: Second storage space

2: AC outlet

21: First AC socket

22: Second AC socket

3: Power socket

4: First circuit board

5: Second circuit board

6: DC socket

61: TYPE-C port

62: TYPE-A port

F0: Electrical plug

F1: Power cord of electrical appliance

Q: Wall socket

Q1: Plug-in surface

S: switch

W:Wall

X: First direction

Y: Second direction

Z0: Familiar adapter socket

Z1: First tilt angle

Z2: Second tilt angle

[Figure 1] is a flow chart of the circuit board configuration method of the wall-mounted AC/DC dual-purpose adapter socket of the present invention.

[Figure 2] is a three-dimensional appearance diagram of the wall-mounted AC/DC dual-purpose adapter socket of the present invention.

[Figure 3] is another three-dimensional appearance diagram of the wall-mounted AC/DC dual-purpose adapter socket of the present invention.

[Figure 4] is a three-dimensional exploded view of the wall-mounted AC/DC dual-purpose adapter socket of the present invention.

[Fifth Figure] is a top view of the wall-mounted AC/DC dual-purpose adapter socket of the present invention after the upper shell is hidden.

[Figure 6] is the first schematic diagram of the use of the wall-mounted AC/DC dual-purpose adapter socket of the present invention, showing the AC/DC dual-purpose adapter socket being plugged into a wall socket.

[Figure 7] is a right side view of Figure 6, showing the AC/DC dual-purpose adapter socket attached to the wall socket.

[Figure 8] is the second schematic diagram of the use of the wall-mounted AC/DC dual-purpose adapter socket of the present invention, showing that the AC/DC dual-purpose adapter socket is plugged into the wall socket and then plugged into the electrical appliance.

[Figure 9] is a right side view of Figure 8, showing that the AC/DC dual-purpose adapter socket is still flush with the wall socket.

[Figure 10] is a three-dimensional external view of a wall-mounted AC/DC dual-purpose adapter socket of another embodiment of the present invention.

[Figure 11] is a schematic diagram of the use of a wall-mounted AC/DC dual-purpose adapter socket of another embodiment of the present invention, showing that the AC/DC dual-purpose adapter socket is plugged into a wall socket and then plugged into an electrical appliance.

[Figure 12] is a right side view of Figure 11, showing that the AC/DC dual-purpose adapter socket is still flush with the wall socket.

[Figure 13] is a schematic diagram of the use of a known adapter socket, in which the known adapter socket is tilted in a first direction.

[Figure 14] is a right side view of Figure 13. The known adapter socket is tilted in the second direction and is not aligned with the wall socket.

Combining the above technical features, the main effect of the circuit board configuration method of the wall-mounted AC/DC dual-purpose adapter socket 1 of the present invention will be clearly presented in the following embodiments. Please refer to the first to third figures and the fourth and fifth figures at the same time. The circuit board configuration method of the wall-mounted AC/DC dual-purpose adapter socket 1 of the present invention includes the following steps: First, a shell 10 of an AC/DC dual-purpose adapter socket 1 is extended along a first direction X, so that the shell 10 forms a first side 11 and a second side 12 along the first direction X, and the shell 10 has a first accommodating space 13 and a second accommodating space 14 on the first side 11 and the second side 12 respectively. In this embodiment, the housing 10 is divided into an upper housing 101 and a lower housing 102 along a second direction Y, and the second direction Y is perpendicular to the first direction X.

An AC socket 2 is disposed between the first side 11 and the second side 12 of the housing 10. The AC socket 2 includes a first AC socket 21 and a second AC socket 22. The second figure shows the appearance of the first AC socket 21 and the second AC socket 22, and the fourth figure shows the internal structure of the first AC socket 21 and the second AC socket 22. The upper housing 101 is provided with a front surface 101a, the lower housing 102 is provided with a back surface 102a, and a side surface 103a is provided between the front surface 101a and the back surface 102a. The first AC socket 21 is located on the front 101a of the upper housing 101, the second AC socket 22 is located on the side 103a of the housing 10, and a power plug 3 protrudes from the back 102a of the lower housing 102. The power plug 3 is arranged between the first side 11 and the second side 12. The AC socket 2 is electrically connected to the power plug 3 through a switch S. Because the AC socket 2 and the power plug 3 are not located on the same side of the housing 10, therefore, when the power plug 3 is inserted into the wall socket Q on the wall W (as shown in Figure 8), the plug F0 of the electrical appliance can still be inserted into the AC/DC dual-purpose adapter socket 1 without hindrance.

Since the AC socket 2 is disposed between the first side 11 and the second side 12 of the housing 10, the AC socket 2 includes a first AC socket 21 located on the front surface 101a and a second AC socket 22 located on the side surface 103a. Even if the first AC socket 21 and the second AC socket 22 are both plugged into electrical appliances during use, no excessive torque will be generated on the power pin 3.

A single circuit board is divided into two or more, and the plurality of circuit boards are respectively arranged in the aforementioned first accommodation space 13 and the second accommodation space 14. In this embodiment, the circuit board is divided into two, that is, a first circuit board 4 and a second circuit board 5 are respectively arranged in the housing 10, so that the first circuit board 4 is located in the first accommodation space 13, and the second circuit board 5 is located in the second accommodation space 14. The first circuit board 4 and the second circuit board 5 are electrically connected, and the first circuit board 4 can be electrically connected to the AC socket 2, or the first circuit board 4 is directly electrically connected to the power plug 3, or the first circuit board 4 is directly electrically connected to the switch S, that is, the first circuit board 4 can be directly or indirectly connected to the power plug 3. At least one DC socket 6 such as a USB socket can be installed on the first circuit board 4 and/or the second circuit board 5. In this embodiment, there are two sets of DC sockets 6, both of which are installed on the second circuit board 5 and exposed on the front side 101a of the upper housing 101 and are also located on the second side 12.

Since the first circuit board 4 and the second circuit board 5 are equipped with a plurality of electronic components, such as capacitors, inductors, integrated circuits, resistors and DC sockets 6, they have a certain weight. By arranging the first circuit board 4 and the second circuit board 5 in the first accommodation space 13 and the second accommodation space 14 respectively, it is avoided that a single circuit board is biased to one side of the power socket 3, thereby generating a single torque and causing the AC/DC dual-purpose adapter socket 1 to be improperly weighted.

In addition, the present embodiment divides the circuit board of the AC/DC dual-purpose adapter socket 1 into a first circuit board 4 and a second circuit board 5, which is only used to illustrate the preferred embodiment of the present invention. The number of the circuit boards is not limited to this. If the above circuit board is divided into three or more, and then respectively arranged in the first accommodating space 13 and the second accommodating space 14, it is also within the scope of the present invention.

In addition to directly connecting the AC socket 2 and the power pin 3 using a conductive element, a switch S can be further arranged between the AC socket 2 and the power pin 3 so that the AC socket 2 and the power pin 3 are indirectly connected. In this way, when the user does not want to frequently disassemble and assemble the AC/DC dual-purpose adapter socket 1 on the wall socket Q (Figure 6), but wants to disconnect the power when the AC/DC dual-purpose adapter socket 1 is not in use, the user can control whether the power flowing through the AC/DC dual-purpose adapter socket 1 is turned on at any time by switching the switch S. In addition, since the switch S, the AC socket 2 and the power pin 3 are all located between the first side 11 and the second side 12, it is also possible to effectively prevent the switch S from exerting excessive torque on the power pin 3 when the user operates the switch S, thereby causing the AC/DC dual-purpose adapter socket 1 to accidentally detach from the wall socket Q.

Please refer to the sixth and seventh figures. When the AC/DC dual-purpose adapter socket 1 of the present invention is inserted into the wall socket Q on the wall W through the power pin 3 and connected, the back 102a of the housing 10 will be against a plug-in surface Q1 of the wall socket Q and completely aligned, and the torque generated by the first circuit board 4 and the second circuit board 5 on the power pin 3 can be properly balanced, so the AC/DC dual-purpose adapter socket 1 will not easily fall off the wall socket Q.

In actual use, please refer to the eighth and ninth figures, the power plug 3 and the aforementioned AC socket 2 are both arranged between the first side 11 and the second side 12. Usually, the weight of the AC plug is heavier, such as the plug of the computer host, and the weight of the DC plug is lighter, such as the TYPE-C charging plug used in the mobile phone. When the AC plug F0 is plugged into the first AC socket 21, the heavier plug F0 can be very close to the power plug 3. Even when the DC socket 6 is plugged into the DC plug F0, the total weight of the plugs F0 will not generate excessive torque on the power pin 3, and the back 102a of the AC/DC dual-purpose adapter socket 1 can still be aligned with the plug surface Q1 of the wall socket Q, which can effectively prevent the AC/DC dual-purpose adapter socket 1 from accidentally detaching from the wall socket Q on the wall W during use, and the power pin 3 and the wall socket Q are not likely to have poor contact problems.

Please refer to the tenth figure, another embodiment of the present invention is to set four sets of DC sockets 6 on the AC/DC dual-purpose adapter socket 1, and all are exposed on the front 101a, two sets of DC sockets 6 are arranged on the first side 11, and the remaining two sets of DC sockets 6 are arranged on the second side 12, so that the first circuit board 4 and the second circuit board 5 can be completely the same circuit board and have the same number of DC sockets 6, that is, the first AC socket 21 and the second AC socket 22 are located in the center, and the DC sockets 6 are located on the first side 11 and the second side 12 respectively, so as to obtain a better balance effect.

Please continue to refer to the second and tenth figures. In the preferred embodiment of the present invention, each set of DC sockets 6 includes a TYPE-C connection port 61 and a TYPE-A connection port 62. By configuring the TYPE-C connection port 61 and the TYPE-A connection port 62 on the AC/DC dual-purpose adapter socket 1, the user can effectively have more choices when he needs electricity.

In addition, if the DC socket 6 simply includes at least one TYPE-C connection port 61 without a TYPE-A connection port 62, or the DC socket 6 simply includes at least one TYPE-A connection port 62 without a TYPE-C connection port 61, it is also within the scope of the present invention. In the above embodiment, the DC socket 6 includes a TYPE-C connection port 61 and a TYPE-A connection port 62, which is only used as an example of a preferred embodiment of the present invention and is not limited thereto.

Please refer to the disclosure of the eleventh and twelfth figures. When the aforementioned another embodiment is actually used, since the power plug 3 and the aforementioned AC socket 2 are both arranged between the first side 11 and the second side 12, therefore, when the plug F0 of the appliance is plugged into the first AC socket 21, the plug F0 of the appliance can still be very close to the power plug 3. Even if the DC sockets 6 on the first side 11 and the second side 12 are also plugged into the plug F0 of the appliance, the total weight of each plug F0 of the appliance and the power cord F1 of the appliance will not generate excessive torque on the power plug 3, so that the back 102a of the AC/DC dual-purpose adapter socket 1 is aligned with the plugging surface Q1 of the wall socket Q, thereby effectively avoiding the problem that the AC/DC dual-purpose adapter socket 1 is accidentally detached from the wall socket Q of the wall W during use.

After the AC/DC dual-purpose adapter socket 1 (as shown in FIG. 12) of the present invention is plugged into the plug F0 of the electrical appliance and inserted into the wall socket Q of the wall W, the back 102a of the AC/DC dual-purpose adapter socket 1 will be completely fitted with the plug surface Q1 because of the counterweight, which has a good fixing effect and can ensure the safety of electricity use.

In general, the wall-mounted AC/DC adapter socket 1 of the present invention can provide a first AC socket 21, a second AC socket 22 and a DC socket 6, so that after the plug F0 of the electrical appliance is plugged into the AC/DC adapter socket 1, it can still maintain a better weight balance, effectively solving the problem that the AC/DC adapter socket 1 generates improper torque during use, and is separated from the wall socket Q, causing inconvenience or causing disasters.

Combined with the description of the above embodiments, the operation, use and effects of the present invention can be fully understood. However, the above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of implementation of the present invention. In other words, simple equivalent changes and modifications made according to the scope of the patent application and the content of the invention description are all within the scope of the present invention.

Claims (6)

A circuit board configuration method for a wall-mounted AC/DC dual-purpose adapter socket includes the following steps: extending a shell of the AC/DC dual-purpose adapter socket along a first direction; forming a first side and a second side of the shell along the first direction, wherein the shell has a first accommodating space on the first side and a second accommodating space on the second side; arranging an AC socket between the first side and the second side; arranging a power plug protruding from the shell between the first side and the second side, wherein the AC socket and the power plug are not located at the first side and the second side; On the same side of the housing, the AC socket is directly or indirectly electrically connected to the power plug; a first circuit board and a second circuit board are arranged in the housing, so that the first circuit board is located in the first accommodation space, the second circuit board is located in the second accommodation space, the first circuit board is electrically connected to the second circuit board, and the first circuit board is directly or indirectly electrically connected to the power plug; at least one DC socket is arranged on the first circuit board and/or the second circuit board, and the DC socket is exposed from the housing and is located on the first side and/or the second side. The circuit board configuration method of the wall-mounted AC/DC dual-purpose adapter socket as described in claim 1, wherein a switch is further configured between the AC socket and the power plug. A circuit board configuration method for a wall-mounted AC/DC dual-purpose adapter as described in claim 2, wherein the switch is located between the first side and the second side. The circuit board configuration method of the wall-mounted AC/DC dual-purpose adapter socket as described in claim 1, wherein the housing is configured with a front and a back, the power plug protrudes from the back, and the AC socket includes a first AC socket, and the first AC socket is located on the front. The circuit board configuration method of the wall-mounted AC/DC dual-purpose adapter socket as described in claim 4, wherein the housing is further configured with a side surface, the side surface is located between the front surface and the back surface, the AC socket includes a second AC socket, the second AC socket is arranged on the side surface, and the second AC socket is located between the first side and the second side. The circuit board configuration method of the wall-mounted AC/DC dual-purpose adapter socket as described in claim 4, wherein the shell is divided into an upper shell and a lower shell along a second direction, the front side is located at the upper shell, and the back side is located at the lower shell.

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