TWI767658B - Adapter - Google Patents

Abstract

This invention provides an adapter, which has an output end and an input end. The output end comprises a first output terminal and a second output terminal. The input end comprises a first terminal group and a second terminal group. When two power supply plugs are respectively inserted into the two terminal groups of the input end, a first input terminal of the first terminal group, a second input terminal of the second terminal group, and the first output terminal are electrically connected, and a third input terminal of the first terminal group, a fourth input terminal of the second terminal group and the second output terminal are electrically connected, so that the current supplied by the two power plugs can be conducted to the output terminal. If only one of the two terminal groups is inserted by a power supply plug, the electric potential of the other terminal group is still zero and there is no risk of electric shock.

Description

Adapter

The present invention relates to an adapter capable of allowing multiple power plugs to be plugged in, so as to connect a power source and an electronic device.

With the advancement of technology, the power consumed by electronic devices is also higher and higher, so the amount of current required is also higher and higher. However, the maximum current that a general power supply can supply is ten amps, so the maximum power of various electronic devices is limited by the maximum current. On the other hand, by purchasing more electronic devices to improve computing performance, more space is needed to install electronic devices, but due to the limited space in the computer room, this solution obviously has insurmountable problems

In view of this, it is an urgent problem to be solved in the industry to propose a better improvement solution.

The main purpose of the present invention is to provide an adapter, the input end of which can be connected to the plugs of multiple power supplies, and the currents supplied by the multiple power supplies are collected and output, thereby increasing the maximum output current. In addition, when only one terminal group of the input end is inserted with a plug, the potential of the exposed input terminal in the other terminal group is still zero, and there is no danger of accidental contact, which is in compliance with safety regulations.

In order to achieve the above object, the adapter proposed by the present invention includes: an output terminal group including a first output terminal; a first input terminal group, including a first input terminal and a first movable terminal, the first movable terminal is selectively electrically connected with the first input terminal; a second input terminal group, including a second input terminal and a second movable terminal, the second movable terminal is selectively electrically connected with the second input terminal; a first connecting wire is electrically connected to the first movable terminal and the second movable terminal; and a first output wire , which is electrically connected to the first input terminal and the first output terminal; wherein, when the first input terminal is electrically connected to the first movable terminal and the second input terminal is electrically connected to the second movable terminal, the first output terminal is electrically connected to the first movable terminal. The first input terminal and the second input terminal are in phase conduction.

In the aforementioned adapter, when the first input terminal is not electrically connected to the first movable terminal or the second input terminal is not electrically connected to the second movable terminal, the first input terminal and the second input terminal The terminals are insulated.

In the aforementioned adapter: the output terminal group further includes a second output terminal; the first input terminal group further includes a third input terminal and a third movable terminal, the third movable terminal is selectively is electrically connected with the third input terminal; the second input terminal group further includes a fourth input terminal and a fourth movable terminal, the fourth movable terminal is selectively electrically connected with the fourth input terminal; the adapter It further includes: a second connection wire, electrically connecting the third movable terminal and the fourth movable terminal; and a second output wire, electrically connecting the fourth input terminal and the second output terminal; wherein, when the second When the input terminal is electrically connected to the second movable terminal and the fourth input terminal is electrically connected to the fourth movable terminal, the second output terminal is electrically connected to the fourth movable terminal and the fourth input terminal.

In the aforementioned adapter, when the second input terminal is not electrically connected to the second movable terminal or the fourth input terminal is not electrically connected to the fourth movable terminal, the second input terminal and the fourth input terminal The terminals are insulated.

In the above-mentioned adapter, the first terminal group further includes a reset member, which is connected to the first movable terminal and tends to separate the first movable terminal from the first input terminal.

The aforementioned adapter further includes an insulating base, and the insulating base includes: a plug-in port; and an inner wall facing the plug-in port; wherein, the first movable terminal includes an opposite fixed end and an electrical connection end, and a middle section between the fixed end and the connection end; the fixed end is fixed on the inner wall, and the first movable terminal extends from the inner wall to the socket; The fixed end of the first movable terminal extends to the middle end of the first movable terminal, and is attached to the fixed end and the middle section of the first movable terminal.

The aforementioned adapter further includes an insulating base, and the insulating base includes: a side wall, which is located between the inner wall and the socket; the side wall includes: a fitting part, the fitting part an end portion abutting against the reset piece; and an arc portion, which is connected with the abutting portion and the connecting portion is a smooth surface, and a gap is formed between the arc portion and the reset piece.

In the above-mentioned adapter: the first input terminal includes: an external connection part, which is used to connect to the outside as an electrode; an internal connection part, which is spaced from the external connection part; and a phase connection The first movable terminal selectively contacts the inner connection part and electrically connects with the inner connection part.

In the aforementioned adapter, the first terminal group further includes a reset member, which is connected to the first movable terminal and tends to separate the first movable terminal from the inner connecting portion of the first input terminal. .

In the aforementioned adapter, the first terminal group further includes: a contact auxiliary member that selectively pushes against the first movable terminal; in the moving direction of the first movable terminal, the contact auxiliary member , the first movable terminal, and the inner connecting portion of the first input terminal are arranged in a row in sequence.

In the above-mentioned adapter, the contact assistant includes an abutting inclined surface, which faces away from the first movable terminal and is inclined toward a socket of the adapter.

In the aforementioned adapter: the output terminal group further includes a second output terminal; the first input terminal group further includes a third input terminal and a third movable terminal, the third movable terminal is selectively is electrically connected with the third input terminal; the second input terminal group further includes a fourth input terminal and a fourth movable terminal, the fourth movable terminal is selectively electrically connected with the fourth input terminal; the adapter It further includes: a second connection wire, electrically connected to the third movable terminal and the fourth input terminal; and a second output wire, electrically connected to the fourth movable terminal and the second output terminal; wherein, when the second When the input terminal is electrically connected to the second movable terminal and the fourth input terminal is electrically connected to the fourth movable terminal, the second output terminal is electrically connected to the fourth movable terminal and the fourth input terminal.

10: output terminal

11: The first output terminal

12: The second output terminal

13: Output grounding piece

20: Input terminal

201: The first terminal group

202: The second terminal group

21a: The first input terminal

211: External connection

212: Internal connection

213: Connecting part

21b: The first active terminal

214: Fixed end

215: Electrical connection terminal

21c: reset piece

21d: Contact Aids

22a: The second input terminal

22b: The second active terminal

23a: The third input terminal

23b: The third active terminal

24a: Fourth input terminal

24b: Fourth active terminal

25: The first input grounding piece

26: Second input ground

30: Wire Set

31: The first output wire

32: The first connecting wire

33: Second connecting wire

34: Second output wire

35: Ground wire

40: Insulation base

41: plug interface

42: inner wall

43: Sidewall

431: Fitting Department

432: Arc

FIG. 1 is a schematic perspective view of a first embodiment of the present invention.

FIG. 2 is an exploded schematic view of the first embodiment of the present invention.

FIG. 3 is a schematic diagram of a circuit configuration according to the first embodiment of the present invention.

FIG. 4 is a schematic diagram of an exploded circuit of the first embodiment of the present invention.

5 is a schematic cross-sectional view of the first terminal group according to the first embodiment of the present invention.

6 is a schematic cross-sectional view of the second terminal group according to the first embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view of the first embodiment of the present invention.

FIG. 8 is a schematic perspective view of a second embodiment of the present invention.

FIG. 9 is another perspective schematic view of the second embodiment of the present invention.

FIG. 10 is a schematic diagram of a circuit configuration according to the second embodiment of the present invention.

FIG. 11 is a schematic diagram of an exploded circuit of the second embodiment of the present invention.

12 is a schematic diagram of a first terminal group connected to a power supply according to a second embodiment of the present invention.

13 is a schematic diagram of a second terminal group connected to a power supply according to the second embodiment of the present invention.

FIG. 14 is a schematic diagram of both the first terminal group and the second terminal group connected to the power supply according to the second embodiment of the present invention.

15 is a schematic cross-sectional view of a third embodiment of the present invention.

FIG. 16 is a schematic diagram of the circuit configuration of the fourth embodiment of the present invention.

FIG. 17 is a schematic diagram of an exploded circuit of the fourth embodiment of the present invention.

The present invention provides an adapter for connecting a power supply plug of an electronic device with the power supply plugs of a plurality of power supplies. Provide a large current to the electronic device. In other words, how many power supplies are integrated through the adapter of the present invention can output more current than a single power supply/power plug can supply. several times the current that should be used, while still complying with safety regulations. The following uses two power supplies/power plugs as an example.

First, please refer to Figure 1 to Figure 3 . The first embodiment of the adapter of the present invention has an output end 10, an input end 20, and a wire set 30, and the insulating base 40 of the adapter has two sockets 41, an inner wall 42, and a side wall 43 . The plug port 41 is disposed at the input end 20 and is used for plugging a power supply plug of one of the power supplies. The inner wall 42 is facing the socket 41 . The side wall 43 is located between the inner wall 42 and the socket 41 . In this embodiment, the side wall 43 may have a fitting portion 431 and an arc-shaped portion 432 . The fitting portion 431 and the arc-shaped portion 432 are connected, and the connecting portion is a smooth curved surface.

Next, please refer to FIG. 1 , FIG. 3 , and FIG. 4 . The output end 10 has a first output terminal 11 and a second output terminal 12 , and can optionally have an output grounding member 13 . The output end 10 is used for connecting to a power supply plug of an electronic device. The first output terminal 11 and the second output terminal 12 are electrodes of the output terminal 10 , and the output grounding member 13 is used for electrical connection with the ground wire of the power supply plug of the electronic device.

The input end 20 includes a first terminal group 201 and a second terminal group 202. The first terminal group 201 and the second terminal group 202 are respectively disposed in the socket 41 and used to connect the power supply plugs of the two power supplies respectively.

The first terminal group 201 has a first input terminal 21 a , a first movable terminal 21 b , a third input terminal 23 a , and a third movable terminal 23 b , and can optionally have a first input grounding member 25 . The first input terminal 21a and the three input terminals 23a can be used as a live wire or a neutral line, respectively.

The first movable terminal 21b selectively contacts the first input terminal 21a, and electrically connects the first movable terminal 21b with the first input terminal 21a by being in contact with the first input terminal 21a. The third movable terminal 23b selectively contacts the third input terminal 23a, and electrically connects the third movable terminal 23b and the third input terminal 23a by contacting the third input terminal 23a. The first input terminal 21a and the first movable terminal 21b in the first terminal group 201 can be the first group of electrodes, and the third input terminal 23a and the first terminal group 201 The third movable terminal 23b may be the second group of electrodes. Since the structures of the first group of electrodes and the second group of electrodes may be similar, only the first group of electrodes is used as an example for description below.

In the first group of electrodes, the first input terminal 21a may have an outer connection portion 211 , an inner connection portion 212 , and a phase connection portion 213 . The external connection portion 211 is used for electrical connection with one of the electrodes of the power supply plug of the power supply. The inner connecting portion 212 is spaced apart from the outer connecting portion 211 . The phase connection portion 213 electrically connects the outer connection portion 211 and the inner connection portion 212 .

The first movable terminal 21b has a fixed end 214 and an electrical connection end 215 opposite to each other, and a middle section between the fixed end 214 and the electrical connection end 215 . The fixed end 214 of the first movable terminal 21 b is fixed on the inner wall 42 of the insulating base 40 , and the first movable terminal 21 b extends from the inner wall 42 to the socket 41 of the insulating base 40 . The electrical connection end 215 of the first movable terminal 21b selectively contacts the inner connection portion 212 of the first input terminal 21a, and thereby is electrically connected to the inner connection portion 212.

Next, please refer to FIG. 4 and FIG. 5 . The first group of electrodes of the first terminal group 201 may further have a reset member 21c and a contact auxiliary member 21d.

The reset element 21c can be an elastic element, and can further be an elastic piece. The reset member 21c is connected to the first movable terminal 21b, and tends to separate the first movable terminal 21b from the first input terminal 21a, and specifically, from the internal connection portion 212 of the first input terminal 21a. The reset member 21c extends from the fixed end 214 of the first movable terminal 21b to the middle section of the first movable terminal 21b, and is attached to the fixed end 214 and the middle section of the first movable terminal 21b. The end of the reset member 21 c is attached to the attaching portion 431 of the side wall 43 of the insulating base 40 , and a gap is formed between the reset member 21 c and the arc portion 432 of the side wall 43 of the insulating base 40 .

The contact assistant 21d selectively pushes against the first movable terminal 21b, and helps the first movable terminal 21b to contact the first input terminal 21a to form an electrical connection by the contact assistant 21d abutting against the first movable terminal 21b. In this embodiment, in the moving direction of the first movable terminal 21b, the contact auxiliary member 21d, the first movable terminal 21b, and the inner connecting portion 212 of the first input terminal 21a are arranged in sequence. List. Specifically, the contact auxiliary member 21d has an abutting slope, which faces away from the first movable terminal 21b and is inclined toward the socket 41 of the adapter.

Next, please refer to FIG. 4 and FIG. 6 . Similarly, the second terminal group 202 has a second input terminal 22a, a second movable terminal 22b, a fourth input terminal 24a, and a fourth movable terminal 24b, and can optionally have a third input grounding member 26. The second movable terminal 22b selectively contacts the second input terminal 22a, and electrically connects the second movable terminal 22b and the second input terminal 22a by contacting the second input terminal 22a. The fourth movable terminal 24b selectively contacts the fourth input terminal 24a, and electrically connects the fourth movable terminal 24b and the fourth input terminal 24a by contacting the fourth input terminal 24a. Since the structures of the first terminal group 201 and the second terminal group 202 may be similar, they will not be described in detail herein.

Next, please refer to FIG. 3 , FIG. 4 , and FIG. 7 . The wire set 30 has a first output wire 31 , a first connection wire 32 , a second connection wire 33 , a second output wire 34 , and a ground wire 35 . In the first embodiment, the first output wire 31 is electrically connected to the first input terminal 21 a and is electrically connected to the first output terminal 11 . The first connecting wire 32 is electrically connected to the first movable terminal 21b, and is electrically connected to the second movable terminal 22b. The second connection wire 33 is electrically connected to the third movable terminal 23b, and is electrically connected to the fourth movable terminal 24b. The second output wire 34 is electrically connected to the fourth input terminal 24 a and is electrically connected to the second output terminal 12 . The ground wire 35 is electrically connected to the output ground member 13 , the first input ground member 25 , and the second input ground member 26 .

Through the above structure, when the power supply plug of the power supply is connected to the first terminal group 201, the power supply plug will push against the first movable terminal 21b to contact the first input terminal 21a, and at the same time push the third movable terminal 23b to contact the third input Terminal 23a. When the power supply plug of the power supply is connected to the second terminal group 202, the second movable terminal 22b contacts the second input terminal 22a, and the fourth movable terminal 24b contacts the fourth input terminal 24a.

Please also refer to Figure 5. Specifically, when the power supply plug of the power supply is connected to the first terminal group 201, the power supply plug is pushed against the abutting slope of the contact auxiliary member 21d, and the contact auxiliary member 21d will be deflected at a larger angle as the power supply plug penetrates into the insertion port 41, and thus the contact auxiliary member 21d will push against the first movable terminal 21b and deflect, so that the electrical connection end 215 of the first movable terminal 21b is connected to the first movable terminal 21b. The inner connecting portion 212 of an input terminal 21a contacts to form an electrical connection. At the same time, based on the same principle, the third movable terminal 23b will also contact the third input terminal 23a when the power supply plug is inserted.

Next, please refer to FIG. 8 to FIG. 11 . The second embodiment of the present invention is similar to the first embodiment, and the difference lies in the relative positional relationship between the first terminal group 201 and the second terminal group 202 . Left and right side by side, but the connection relationship of each circuit element is the same. Another difference is that the second embodiment does not have the reset member and the contact auxiliary member, but directly pushes the first movable terminal 21b and the third movable terminal 23b and the first input terminal 21a and the first movable terminal 21a and the third movable terminal 23b with the power supply plug when the power supply plug is inserted. The three input terminals 23a are electrically connected, and are separated from the first input terminal 21a and the third input terminal 23a by the elasticity of the first movable terminal 21b and the third movable terminal 23b themselves.

Next, please refer to FIG. 12 to FIG. 14 . Through the structures described in the first and second embodiments of the present invention, when the power supply plug of one of the power supplies is connected to the first terminal group 201 (as shown in FIG. 12 ), the first movable terminal 21b contacts the first The input terminal 21a, and the third movable terminal 23b contacts the third input terminal 23a; when the power supply plug of another power supply is connected to the second terminal group 202 (as shown in FIG. 13 ), the second movable terminal 22b contacts the second input terminal 22a, and the fourth movable terminal 24b contacts the fourth input terminal 24a. If A and B are said to be in contact, it can be understood that A and B are directly connected without other media, or that A and B are connected through a specific medium to form a physical connection or electrical connection.

If the power supply plugs of the two power supplies are connected to the first terminal group 201 and the second terminal group 202 respectively, a complete loop can be formed to supply power to the electronic device connected to the output end 10 . Specifically, the first output terminal 11, the first output wire 31, the first input terminal 21a, the first movable terminal 21b, the first connecting wire 32, the second movable terminal 22b, and the second input terminal 22a are connected in sequence, The second output terminal 12, the second output wire 34, the fourth input terminal 24a, the fourth movable terminal 24bb, the second connecting wire 33, the third movable terminal 23b, and the third input terminal 23a are connected in sequence. Thereby, the currents supplied by the two power supplies can be superimposed and output.

When the power supply plug of any power supply is pulled out (also taking the first terminal group 201 as an example), in the first embodiment (as shown in FIG. 5 ), the first movable terminal 21b and the first movable terminal 21b and the third The three movable terminals 23b are separated. However. Since the main function of the first movable terminal 21b is to form electrical connection and conduct electricity, the first consideration for the selection of materials is conductivity; on the contrary, the function of the reset member 21c is to assist the first movable terminal 21b to spring back to its original position, so the material The primary consideration for selection is flexibility. In addition, in the second embodiment (as shown in FIG. 12 ), the first movable terminal 21b and the third movable terminal 23b can be separated from the first input terminal 21a and the third input terminal 23a through their own elasticity.

Therefore, even if only the first terminal group 201 or the second terminal group 202 is connected to the power supply, the potential on the exposed input terminals is still zero, so there is no danger of accidental contact. For example, if the second terminal group 202 is connected to the power supply and the first terminal group 201 is not connected to the power supply, the first input terminal 21a and the third input terminal 23a are exposed, but because the first movable terminal 21b and the third movable terminal 23b is not electrically connected with the first input terminal 21a and the third input terminal 23a, so the potential on the first input terminal 21a and the third input terminal 23a is still zero, which meets the safety requirements.

Next, please refer to FIG. 15 . The third embodiment of the present invention is similar to the first or second embodiment, and the difference lies in the connection manner of the wires. Specifically, the adapter in the third embodiment can also have an output terminal, an input terminal, and a wire group. The output end has a first output terminal and a second output terminal. The input terminal includes a first terminal group and a second terminal group, the first terminal group has a first input terminal 21a, a first movable terminal 21b, a third input terminal 23a, and a third movable terminal 23b, and The second terminal group has a second input terminal 22a, a second movable terminal 22b, a fourth input terminal 24a, and a fourth movable terminal 24b.

The wire set has a first output wire 31 , a first connection wire 32 , a second connection wire 33 , and a second output wire 34 . The first output wire 31 is electrically connected to the first input terminal 21a connected and electrically connected to the first output terminal. The first connecting wire 32 is electrically connected to the first movable terminal 21b, and is electrically connected to the second movable terminal 22b. The second connecting wire 33 is electrically connected to the third movable terminal 23b, and is electrically connected to the fourth input terminal 24a. The second output wire 34 is electrically connected to the fourth movable terminal 24b and is electrically connected to the second output terminal.

Under normal conditions, the potential of the pole on the left side of the socket is zero (connected to the neutral line), so the potential of the third input terminal 23a and the fourth input terminal 24a is still zero after connecting to the power supply plug of the power supply. In other words, in the third embodiment, even if only the first terminal group 201 is connected to the power supply, after the third input terminal 23a is connected to the electrode of the power supply plug, the third input terminal 23a, the third movable terminal 23b, and the fourth The input terminals 24a are electrically connected in sequence, so the potentials of the second input terminal 22a, the second movable terminal 22b, and the fourth input terminal 24a are also zero. At this time, even if the exposed fourth input terminal 24a is accidentally touched, no damage will be caused.

Next, please refer to FIG. 16 and FIG. 17 . The fourth embodiment of the present invention is similar to the third embodiment, and the difference lies in the relative positional relationship between the first terminal group 201 and the second terminal group 202 . Left and right side by side, but the connection relationship of each circuit element is the same. Another difference is that the fourth embodiment may not have the reset member 21c and the contact auxiliary member 21d.

To sum up, through the adapter of the present invention, the currents supplied by the two power supplies can be superimposed and outputted, so that the electronic device with high power consumption can receive more power without increasing the voltage. In addition, in a specific embodiment, the first input terminal 21a is electrically connected to the first movable terminal 21b only when the first terminal group 201 is connected to the power supply plug, and the third input terminal 23a is only connected to the power supply plug when the first terminal group 201 is connected. The second input terminal 22a is electrically connected to the second movable terminal 22b only when the second terminal group 202 is connected to the power supply plug, and the fourth input terminal 24a is only connected to the power supply plug when the second terminal group 202 is connected. When it is electrically connected to the fourth movable terminal 24b, even if only one terminal group is connected to the power supply plug at the same time point, the potential of the exposed input terminal in the other terminal group is still zero, and there is no danger of accidental contact. safety regulations. On the other hand, in individual specific In the embodiment, if only the first terminal group 201 or the second terminal group 202 is plugged into the power supply plug, a complete loop is not formed, so the output terminal 10 will not supply current to the electronic device to protect the electronic device.

10: output terminal 11: The first output terminal 12: The second output terminal 13: Output grounding piece 20: Input terminal 201: The first terminal group 202: The second terminal group 21a: The first input terminal 22a: The second input terminal 22b: The second active terminal 23a: The third input terminal 23b: The third active terminal 24a: Fourth input terminal 24b: Fourth active terminal 30: Wire Set 31: The first output wire 32: The first connecting wire 33: Second connecting wire 34: Second output wire 35: Ground wire 40: Insulation base

Claims (11)

An adapter, which includes: an output terminal group, including a first output terminal; a first input terminal group, including a first input terminal and a first movable terminal, the first movable terminal selectively and the The first input terminal is electrically connected; a second input terminal group includes a second input terminal and a second movable terminal, the second movable terminal is selectively electrically connected with the second input terminal; a first connecting wire, The first movable terminal and the second movable terminal are electrically connected; and a first output wire is electrically connected to the first input terminal and the first output terminal; wherein, when the first input terminal is electrically connected to the first movable terminal When the second input terminal is electrically connected to the second movable terminal, the first output terminal is connected to the first input terminal and the second input terminal; when the first input terminal is not electrically connected to the first movable terminal Or when the second input terminal is not electrically connected to the second movable terminal, the first input terminal and the second input terminal are in an insulated state. The adapter of claim 1, wherein: the output terminal group further comprises a second output terminal; the first input terminal group further comprises a third input terminal and a third movable terminal, the third movable terminal selectively electrically connected to the third input terminal; the second input terminal group further includes a fourth input terminal and a fourth movable terminal, the fourth movable terminal is selectively electrically connected to the fourth input terminal; the The adapter further includes: a second connection wire electrically connected to the third movable terminal and the fourth movable terminal; and a second output wire electrically connected to the fourth input terminal and the second output terminal; Wherein, when the second input terminal is electrically connected to the second movable terminal and the fourth input terminal is electrically connected to the fourth movable terminal, the second output terminal is electrically connected to the fourth movable terminal and the fourth input terminal. The adapter of claim 2, wherein when the second input terminal is not electrically connected to the second movable terminal or the fourth input terminal is not electrically connected to the fourth movable terminal, the second input terminal and the The fourth input terminal is in an insulated state. The adapter as claimed in any one of claims 1 to 3, wherein the first terminal group further comprises a reset member connected to the first movable terminal and inclined to make the first movable terminal and the first movable terminal An input terminal is separated. The adapter as claimed in claim 4, further comprising an insulating base, the insulating base comprising: a plug port; and an inner wall facing the plug port; wherein the first movable terminal includes a relative a fixed end and an electrical connection end, and a middle section between the fixed end and the connection end; the fixed end is fixed on the inner wall, and the first movable terminal extends from the inner wall to the socket; and The reset piece extends from the fixed end of the first movable terminal to the middle end of the first movable terminal, and is attached to the fixed end and the middle section of the first movable terminal. The adapter as claimed in claim 4, further comprising an insulating base, the insulating base comprising: a socket; an inner wall facing the socket; and a side wall located on the inner wall and Between the insertion ports, the side wall includes: a fitting portion, the fitting portion abuts against one end of the reset member; and An arc-shaped portion is connected with the fitting portion and the connecting portion is a smooth surface, and a gap is formed between the arc-shaped portion and the reset member. The adapter as claimed in any one of claims 1 to 3, wherein: the first input terminal comprises: an external connection part used to connect with the outside to serve as an electrode; an internal connection part connected to the external connection The connection parts are arranged at intervals; and a phase connection part electrically connects the outer connection part and the inner connection part; the first movable terminal selectively contacts the inner connection part and is electrically connected with the inner connection part. The adapter as claimed in claim 7, wherein the first terminal group further comprises a reset member, which is connected to the first movable terminal and is inclined to make the inner part of the first movable terminal and the first input terminal The connection part is separated. The adapter as claimed in claim 7, wherein the first terminal group further comprises: a contact assistant, which selectively pushes against the first movable terminal, and in the moving direction of the first movable terminal, The contact assistant, the first movable terminal, and the inner connecting portion of the first input terminal are sequentially arranged in a row. The adapter as claimed in claim 8, wherein the contact auxiliary member comprises an abutting inclined surface, which faces away from the first movable terminal and is inclined toward a socket of the adapter. The adapter of claim 1, wherein: the output terminal group further comprises a second output terminal; the first input terminal group further comprises a third input terminal and a third movable terminal, the third movable terminal selectively electrically connected to the third input terminal; the second input terminal group further includes a fourth input terminal and a fourth movable terminal, the fourth movable terminal is selectively electrically connected to the fourth input terminal; the The adapter also includes: A second connecting wire is electrically connected to the third movable terminal and the fourth input terminal; and a second output wire is electrically connected to the fourth movable terminal and the second output terminal; wherein, when the second input terminal is electrically connected When the second movable terminal is connected and the fourth input terminal is electrically connected to the fourth movable terminal, the second output terminal is connected with the fourth movable terminal and the fourth input terminal.

Images