Adapter and method of using the same

Abstract

The embodiment of the present invention discloses an adapter and a method for using the same. The adapter includes a shell, a three-wire plug is provided on one side of the shell, and at least one three-hole socket is provided on the other side, and the first end, the second end and the third end of the three-wire plug are respectively electrically connected to the first end, the second end and the third end of the three-hole socket; it also includes at least one group of input and output interfaces and a first resistor; the input and output interfaces include an input interface and an output interface, and the input interface and the output interface are electrically connected to each other for transmitting direct current signals; the negative pole of the input interface is electrically connected to the first end of the first resistor, and the first end of the three-wire plug is electrically connected to the second end of the first resistor; wherein the first end of the three-wire plug is a ground terminal. The adapter provided by the embodiment of the present invention can effectively remove the induced current generated by the low-voltage end, eliminate the induced current phenomenon, and improve the user experience.

Description

Technical Field

[0001] The embodiments of the present invention relate to circuit switching technology, and more particularly to a switch and a method for using the switch. Background Art

[0002] With the rapid development of personal portable electronic devices, two-wire power plug adapters have quickly occupied most application scenarios with their advantages such as small size and high cost performance.

[0003] The two-wire power plug adapter can convert high-voltage (e.g. 220V) AC power into low-voltage (e.g. 5V) DC power required for charging electronic devices. However, due to the isolation conditions of the high-voltage and low-voltage ends, it is impossible to completely eliminate the AC circuit path, so there is a phenomenon of coupling high-voltage power frequency AC power to the low-voltage end along the primary and secondary paths of the transformer. Although safety certification can ensure that the leakage current is within a safe range, due to the individual sensitivity differences of organisms such as humans and pets, discomfort caused by induced current will still occur. Therefore, it is very necessary to eliminate the current generated by the induced electricity at the low-voltage end. Summary of the invention

[0004] The embodiment of the present invention provides an adapter and a method for using the same, wherein the adapter can effectively remove the induced current generated at the low-voltage end, eliminate the induced current phenomenon, and improve the user experience.

[0005] In a first aspect, an embodiment of the present invention provides an adapter, comprising a housing, a three-wire plug is provided on one side of the housing, and at least one three-hole socket is provided on the other side, wherein the first end, the second end and the third end of the three-wire plug are respectively electrically connected to the first end, the second end and the third end of the three-hole socket; and further comprising at least one set of input and output interfaces and a first resistor;

[0006] The input-output interface includes an input interface and an output interface, and the input interface and the output interface are electrically connected to each other for transmitting direct current signals;

[0007] The negative electrode of the input interface is electrically connected to the first end of the first resistor, and the first end of the three-wire plug is electrically connected to the second end of the first resistor;

[0008] Wherein, the first end of the three-wire plug is a ground wire end.

[0009] Optionally, a 5V and / or 12V DC signal is transmitted between the input interface and the output interface.

[0010] Optionally, a 5V DC signal is transmitted between the input interface and the output interface;

[0011] The input interface includes any one of a Mini-USB interface, a Micro-USB interface or a USB Type-C interface;

[0012] The output interface includes a USB Type-A interface or a USB Type-C interface.

[0013] Optionally, a 12V DC signal is transmitted between the input interface and the output interface;

[0014] The input interface and the output interface both include a 5.5mm stick plug interface.

[0015] Optionally, a three-wire cable is further included, and the first end, the second end and the third end of the three-wire plug are electrically connected to the first end, the second end and the third end of the three-hole socket through three wires of the three-wire cable.

[0016] Optionally, a resistor protection sleeve is further included, and the first resistor is located in the resistor protection sleeve.

[0017] Optionally, the input interface and the output interface in the same group of the input / output interfaces are arranged on the same side of the shell; or the input interface and the output interface in the same group of the input / output interfaces are arranged on two adjacent sides of the shell; or the input interface and the output interface in the same group of the input / output interfaces are arranged on two opposite sides of the shell.

[0018] In a second aspect, an embodiment of the present invention further provides a method for using any of the above adapters, including:

[0019] Plug the adapter into a three-wire outlet with a ground wire;

[0020] Insert the two-wire power adapter into the three-hole socket of the adapter;

[0021] Insert the output end of the two-wire power adapter into the input interface of the adapter;

[0022] The output interface of the adapter is connected to the power supply interface of the electrical appliance by using a connecting line.

[0023] An adapter provided by an embodiment of the present invention includes a shell, a three-wire plug is provided on one side of the shell, and at least one three-hole socket is provided on the other side, the first end, the second end and the third end of the three-wire plug are respectively electrically connected to the first end, the second end and the third end of the three-hole socket; it also includes at least one group of input and output interfaces and a first resistor; the input and output interfaces include an input interface and an output interface, the input interface and the output interface are electrically connected to each other for transmitting direct current signals; the negative pole of the input interface is electrically connected to the first end of the first resistor, and the first end of the three-wire plug is electrically connected to the second end of the first resistor; wherein the first end of the three-wire plug is a ground terminal. When the adapter is in use, the adapter is plugged into a three-wire socket with a grounding wire, and the three-wire socket provides a high-voltage AC signal; the two-wire power adapter is plugged into the three-hole socket of the adapter, and the two-wire power adapter converts the high-voltage AC signal into a low-voltage DC signal; the output end of the two-wire power adapter is plugged into the input interface of the adapter, and when the low-voltage DC signal is transmitted from the input interface to the output interface, the induced electricity can be transmitted to the ground wire end through the first resistor; the output interface of the adapter is connected to the power supply interface of the electrical appliance using a connecting wire, thereby solving the problem of induced electricity at the low-voltage end when the existing two-wire power adapter is used, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of an adapter provided by an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of the internal structure of an adapter provided by an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of the internal structure of another adapter provided by an embodiment of the present invention;

[0027] Figure 4 is a schematic structural diagram of another adapter provided by an embodiment of the present invention;

[0028] Figure 5 is a flowchart of a method for using an adapter provided by an embodiment of the present invention;

[0029] Figure 6 It is a schematic diagram of a usage scenario of an adapter provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. It should be noted that the directional words such as "upper", "lower", "left", "right" and the like described in the embodiments of the present invention are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is formed "on" or "under" another element, it can not only be directly formed "on" or "under" another element, but also indirectly formed "on" or "under" another element through an intermediate element. The terms "first", "second" and the like are only used for descriptive purposes and do not indicate any order, quantity or importance, but are only used to distinguish different components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0032] Figure 1 FIG. 1 is a schematic diagram of a three-dimensional structure of an adapter provided by an embodiment of the present invention. Figure 2 FIG. 1 is a schematic diagram of the internal structure of an adapter provided by an embodiment of the present invention. Figure 1 and Figure 2 The adapter provided in this embodiment includes a shell 10, a three-wire plug 20 is provided on one side of the shell 10, and at least one three-hole socket 30 is provided on the other side, and the first end, the second end and the third end of the three-wire plug 20 are respectively electrically connected to the first end, the second end and the third end of the three-hole socket 30; it also includes at least one set of input and output interfaces 40 and a first resistor 50; the input and output interfaces 40 include an input interface 41 and an output interface 42, and the input interface 41 and the output interface 42 are electrically connected to each other for transmitting direct current signals; the negative pole of the input interface 41 is electrically connected to the first end of the first resistor 50, and the first end of the three-wire plug 20 is electrically connected to the second end of the first resistor 50; wherein the first end of the three-wire plug 20 is a ground terminal.

[0033] It can be understood that the first end, the second end and the third end of the three-wire plug 20 can be a ground terminal, a neutral terminal and a live terminal respectively, and can be used to transmit 220V AC power. Figure 1The adapter shown in the figure includes a three-hole socket 30 and a group of input and output interfaces 40, which is only schematic and not a limitation of the embodiments of the present invention. In other embodiments, the adapter may include multiple three-hole sockets 30, and may also include multiple groups of input and output interfaces 40. The three-hole socket 30 is arranged on the opposite side of the three-wire plug 20, and the input and output interfaces 40 are arranged on the side of the shell, which is only schematic and can be set according to actual needs during specific implementation. By connecting the negative pole of the input interface 41 and the ground terminal using the first resistor 50, the first resistor 50 can guide the induced electricity into the ground terminal, thereby achieving the purpose of eliminating the induced electricity. In specific implementation, the resistance value of the first resistor 50 can be designed according to actual needs, for example, 1kΩ, 2kΩ, etc. can be selected. In a certain embodiment, optionally, the high-voltage area and the low-voltage area of ​​the adapter respectively use separate structural cabins to ensure the electrical insulation and isolation requirements of the high-voltage cabin and the low-voltage cabin. Other flame retardant, electrical and other parameters must also comply with the national standards of the socket or adapter.

[0034] When the adapter provided in this embodiment is used, the adapter is plugged into a three-wire socket with a grounding wire, and the three-wire socket provides a high-voltage AC signal; the two-wire power adapter is plugged into the three-hole socket of the adapter, and the two-wire power adapter converts the high-voltage AC signal into a low-voltage DC signal; the output end of the two-wire power adapter is plugged into the input interface of the adapter, and when the low-voltage DC signal is transmitted from the input interface to the output interface, the induced electricity can be transmitted to the ground terminal through the first resistor; the output interface of the adapter is connected to the power supply interface of the electrical appliance by a connecting wire, so as to solve the problem of induced electricity at the low-voltage end when the existing two-wire power adapter is used, and improve the user experience. The adapter makes full use of existing accessories, does not change the original product structure design, is green and environmentally friendly, and is easy to use.

[0035] On the basis of the above technical solution, optionally, a 5V and / or 12V DC signal is transmitted between the input interface 41 and the output interface 42 .

[0036] It is understandable that the charging voltage of existing electronic devices includes 5V, 12V, etc., so the input interface 41 and the output interface 42 can be set to transmit 5V and / or 12V DC signals. In other embodiments, the input and output interfaces can also transmit other voltage signals, such as 9V, and the specific implementation can be designed according to the actual application scenario.

[0037] Optionally, a 5V DC signal is transmitted between the input interface 41 and the output interface 42; the input interface 41 includes any one of a Mini-USB interface, a Micro-USB interface or a USB Type-C interface; the output interface 42 includes a USB Type-A interface or a USB Type-C interface.

[0038] It is understandable that USB is the abbreviation of Universal Serial Bus in English. The USB interface can be used for both data transmission and power supply. In this embodiment, the USB interface can be used to power electronic products such as mobile phones and tablet computers.

[0039] Optionally, a 12V DC signal is transmitted between the input interface 41 and the output interface 42; the input interface 41 and the output interface 42 both include a 5.5mm stick plug interface.

[0040] It is understandable that the 5.5mm stick plug interface is generally used to power laptops, monitors, monitoring equipment, etc. In other embodiments, the input interface 41 and the output interface 42 can also be set to other voltages and other types of power supply interfaces, which can be designed according to actual needs during specific implementation.

[0041] Figure 3 FIG. 2 is a schematic diagram of the internal structure of another adapter provided by an embodiment of the present invention. Figure 3 Optionally, the adapter provided in this embodiment further includes a resistor protection sleeve 60, and the first resistor 50 is located in the resistor protection sleeve 60. The resistor protection sleeve 60 is used to protect the first resistor 50 so that its installation method complies with international electrical safety standards.

[0042] Figure 4 FIG. 2 is a schematic diagram of the structure of another adapter provided by an embodiment of the present invention. Figure 4 Optionally, the adapter provided in this embodiment further includes a three-wire cable 70, and the first end, the second end and the third end of the three-wire plug 20 are respectively connected through three wires ( Figure 4 (not shown) are electrically connected to the first end, the second end and the third end of the three-hole socket 30 accordingly.

[0043] By setting up the three-wire cable 70, the three-wire cable 70 can be used as an extension cable in scenarios where the charging cable is not long enough. The user does not need to get close to the wall socket when using the electronic device, thereby increasing the range of activities.

[0044] In one embodiment, optionally, the maximum current between the three-wire plug and the three-hole socket is less than or equal to 1A.

[0045] In a certain embodiment, optionally, the maximum current between the input interface and the output interface is less than or equal to 1A.

[0046] In this embodiment, the maximum current of the high voltage end and the low voltage end is set to be less than 1 A, so that the safety of the adapter can be ensured when the size is small. In other embodiments, a high-power adapter can also be designed under the condition of meeting electrical standards.

[0047] Optionally, the input interface and the output interface in the same group of input / output interfaces are arranged on the same side of the shell; or the input interface and the output interface in the same group of input / output interfaces are arranged on two adjacent sides of the shell; or the input interface and the output interface in the same group of input / output interfaces are arranged on two opposite sides of the shell.

[0048] For example, continue to refer to Figure 1 , Figure 1 The input interface 41 and the output interface 42 are both arranged on the same side of the housing 10. In other embodiments, the input interface 41 and the output interface 42 can be arranged opposite to each other, that is, arranged on two opposite sides of the housing 10, or can be arranged on two adjacent sides, which is not limited in the embodiment of the present invention. In other embodiments, the input interface 41 and the output interface 42 can also be located on the same side as the three-hole socket 30, which can be flexibly arranged according to the size of the adapter during specific implementation.

[0049] Figure 5 The figure is a flow chart of a method for using an adapter provided in an embodiment of the present invention. The method for using is applicable to any adapter provided in the above embodiments. The method for using includes:

[0050] Step S110: Plug the adapter into a three-wire socket with a ground wire.

[0051] Step S120: insert the two-wire power adapter into the three-hole socket of the adapter.

[0052] Step S130: insert the output end of the two-wire power adapter into the input interface of the adapter.

[0053] Step S140: Use a connecting line to connect the output interface of the adapter to the power supply interface of the electrical appliance.

[0054] For example, Figure 6 FIG. 1 is a schematic diagram of a use scenario of an adapter provided by an embodiment of the present invention, referring to FIG. Figure 6 The adapter 100 provided in this embodiment is plugged into the three-wire socket 200 on the wall, the two-wire power adapter 300 is plugged into the three-hole socket 30 of the adapter 100, the output end 301 of the two-wire power adapter 300 is inserted into the input interface 41 of the adapter 100, and the connecting line 400 connects the output interface 42 of the adapter 100 with the power supply interface 501 of the electrical appliance 500. Since the negative poles of the input interface 41 and the output interface 42 are connected to the ground wire, the induced electricity can be guided to the ground terminal, thereby effectively eliminating the induced electricity and improving the user experience.

[0055] It should be noted that in the above-mentioned method of use, the order of steps S110 to S140 is not limited, and the operation order can be arbitrarily changed during implementation without affecting the technical effect of the adapter in eliminating induced electricity.

[0056] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An adapter, It is characterized in that It comprises a shell, one side of which is provided with a three-wire plug, and the other side of which is provided with at least one three-hole socket, wherein the first end, the second end and the third end of the three-wire plug are respectively electrically connected with the first end, the second end and the third end of the three-hole socket; and it also comprises at least one set of input and output interfaces and a first resistor; The input-output interface includes an input interface and an output interface, and the input interface and the output interface are electrically connected to each other for transmitting direct current signals; The negative electrode of the input interface is electrically connected to the first end of the first resistor, and the first end of the three-wire plug is electrically connected to the second end of the first resistor; Wherein, the first end of the three-wire plug is a ground wire end; The method for using the adapter comprises: plugging the adapter into a three-wire socket with a ground wire; Plug the two-wire power adapter into the three-hole socket of the adapter; Insert the output end of the two-wire power adapter into the input interface of the adapter; The output interface of the adapter is connected to the power supply interface of the electrical appliance by using a connecting line.

2. The adapter according to claim 1, It is characterized in that A 5V and / or 12V DC signal is transmitted between the input interface and the output interface.

3. The adapter according to claim 2, It is characterized in that A 5V DC signal is transmitted between the input interface and the output interface; The input interface includes any one of a Mini-USB interface, a Micro-USB interface or a USB Type-C interface; The output interface includes a USB Type-A interface or a USB Type-C interface.

4. The adapter according to claim 2, It is characterized in that A 12V DC signal is transmitted between the input interface and the output interface; The input interface and the output interface both include a 5.5mm stick plug interface.

5. The adapter according to claim 1, It is characterized in that It also includes a three-wire cable, and the first end, the second end and the third end of the three-wire plug are electrically connected to the first end, the second end and the third end of the three-hole socket through three wires of the three-wire cable.

6. The adapter according to claim 1, It is characterized in that It also includes a resistor protection sleeve, and the first resistor is located in the resistor protection sleeve.

7. The adapter according to any one of claims 1 to 6, It is characterized in that The input interface and the output interface in the same group of the input / output interfaces are arranged on the same side of the shell; or the input interface and the output interface in the same group of the input / output interfaces are arranged on two adjacent sides of the shell; or the input interface and the output interface in the same group of the input / output interfaces are arranged on two opposite sides of the shell.

8. A method for using the adapter according to any one of claims 1 to 7, It is characterized in that include: Plug the adapter into a three-wire outlet with a ground wire; Plug the two-wire power adapter into the three-hole socket of the adapter; Insert the output end of the two-wire power adapter into the input interface of the adapter; Connect the output interface of the adapter to the power supply interface of the electrical appliance using a connecting wire.

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