adapter

Abstract

The present application provides an adapter having an output end and an input end. The output end has a first output terminal and a second output terminal. The input end has a first terminal set and a second terminal set. When two power supply plugs are inserted into the two terminal sets of the input end respectively, the first input terminal of the first terminal set, the second input terminal of the second terminal set and the first output terminal are electrically connected, and the third input terminal of the first terminal set, the fourth input terminal of the second terminal set and the second output terminal are electrically connected, so that the current supplied by the two power supply plugs can be conducted to the output end. If only one of the two terminal sets is inserted with a power supply plug, the potential of the input terminal on the other terminal set is still zero without the risk of electric shock.

Description

Technical Field

[0001] This invention relates to an adapter that allows multiple power plugs to be plugged in to connect a power source and an electronic device. Background Technology

[0002] As technology advances, electronic devices consume increasingly more power, thus requiring larger currents. However, a typical power supply can only deliver a maximum current of ten amps, limiting the maximum power output of various electronic devices. On the other hand, improving computing performance by purchasing more electronic devices requires more space to install them, but given the limited space in computer rooms, this solution clearly has insurmountable problems.

[0003] Therefore, proposing a better improvement plan is an urgent problem that the industry needs to solve. Summary of the Invention

[0004] The main objective of this invention is to provide an adapter whose input terminal can be connected to the plugs of multiple power supplies, and which aggregates the current supplied by the multiple power supplies before outputting it, thereby increasing the maximum output current. Furthermore, when only one terminal group of the input terminal is plugged in, the potential of the exposed input terminals in the other terminal group remains zero, eliminating the risk of accidental contact and complying with safety regulations.

[0005] To achieve the above objectives, the adapter proposed in this invention comprises:

[0006] An output terminal group, comprising a first output terminal and a second output terminal;

[0007] A first input terminal group includes a first input terminal and a first movable terminal, wherein the first movable terminal is selectively electrically connected to the first input terminal;

[0008] A second input terminal group includes a second input terminal and a second movable terminal, wherein the second movable terminal is selectively electrically connected to the second input terminal;

[0009] The first input terminal group also includes a third input terminal and a third movable terminal, the third movable terminal being selectively electrically connected to the third input terminal;

[0010] The second input terminal group also includes a fourth input terminal and a fourth movable terminal, the fourth movable terminal being selectively electrically connected to the fourth input terminal;

[0011] A first connecting wire electrically connects the first movable terminal and the second movable terminal;

[0012] A second connecting wire electrically connects the third movable terminal and the fourth movable terminal;

[0013] A first output wire, electrically connected to a first input terminal and the first output terminal; and

[0014] A second output wire is electrically connected to the fourth input terminal and the second output terminal;

[0015] Specifically, when the first input terminal is electrically connected to the first active terminal and the second input terminal is electrically connected to the second active terminal, the first output terminal is connected to the first input terminal and the second input terminal; when the second input terminal is electrically connected to the second active terminal and the fourth input terminal is electrically connected to the fourth active terminal, the second output terminal is connected to the third input terminal and the fourth input terminal.

[0016] In the adapter described above, 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 are in an insulated state.

[0017] In the adapter described above, 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 are in an insulated state.

[0018] In the adapter as described above, the first input terminal group further includes a reset member connected to the first movable terminal and inclined to separate the first movable terminal from the first input terminal.

[0019] The adapter as described above further includes an insulating base, which comprises:

[0020] One-plug interface; and

[0021] An inner wall, which is directly opposite the insertion interface;

[0022] The first movable terminal includes a fixed end and an electrical connection end, and a middle section located between the fixed end and the connection end; the fixed end is fixed to the inner wall, and the first movable terminal extends from the inner wall toward the connector; and

[0023] The reset member extends from the fixed end of the first movable terminal to the middle section of the first movable terminal and is attached to the fixed end and the middle section of the first movable terminal.

[0024] The adapter as described above further includes an insulating base, which comprises:

[0025] A sidewall is located between the inner wall and the insertion interface; the sidewall comprises:

[0026] A fitting portion, wherein the fitting portion abuts against one end of the resetting member; and

[0027] An arc-shaped portion is connected to the fitting portion, and the connection point is a smooth surface. A gap is formed between the arc-shaped portion and the reset member.

[0028] In the adapter as described above:

[0029] The first input terminal includes:

[0030] An external connecting part, which serves as an electrode for connecting to the outside;

[0031] An inner connecting portion, which is spaced apart from the outer connecting portion; and

[0032] A phase connection portion, which electrically connects the outer connection portion and the inner connection portion;

[0033] The first active terminal selectively contacts the inner connection portion and thereby electrically connects to the inner connection portion.

[0034] In the adapter as described above, the first input terminal group further includes a reset member connected to the first movable terminal and inclined to disconnect the first movable terminal from the inner connection portion of the first input terminal.

[0035] In the adapter described above, the first input terminal group further includes:

[0036] A contact aid selectively pushes against the first movable terminal; in the direction of movement of the first movable terminal, the contact aid, the first movable terminal, and the inner connection portion of the first input terminal are arranged in a row in sequence.

[0037] In the adapter as described above, the contact aid includes an abutment ramp that faces away from the first movable terminal and is inclined toward a plug interface of the adapter. Attached Figure Description

[0038] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0039] Figure 1 This is a three-dimensional schematic diagram of the first embodiment of the present invention.

[0040] Figure 2 This is an exploded view of the first embodiment of the present invention.

[0041] Figure 3This is a schematic diagram of the circuit configuration according to the first embodiment of the present invention.

[0042] Figure 4 This is a schematic diagram of the circuit breakdown of the first embodiment of the present invention.

[0043] Figure 5 This is a cross-sectional schematic diagram of the first input terminal group according to the first embodiment of the present invention.

[0044] Figure 6 This is a cross-sectional schematic diagram of the second input terminal group according to the first embodiment of the present invention.

[0045] Figure 7 This is a cross-sectional schematic diagram of the first embodiment of the present invention.

[0046] Figure 8 This is a perspective view of the second embodiment of the present invention.

[0047] Figure 9 This is another perspective view of the second embodiment of the present invention.

[0048] Figure 10 This is a schematic diagram of the circuit configuration according to the second embodiment of the present invention.

[0049] Figure 11 This is a circuit breakdown diagram of the second embodiment of the present invention.

[0050] Figure 12 This is a schematic diagram of the first input terminal group connected to a power supply according to a second embodiment of the present invention.

[0051] Figure 13 This is a schematic diagram of the second input terminal group connected to a power supply according to a second embodiment of the present invention.

[0052] Figure 14 This is a schematic diagram showing that both the first input terminal group and the second input terminal group of the second embodiment of the present invention are connected to a power supply.

[0053] Figure 15 This is a cross-sectional schematic diagram of the third embodiment of the present invention.

[0054] Figure 16 This is a schematic diagram of the circuit configuration according to the fourth embodiment of the present invention.

[0055] Figure 17 This is a circuit breakdown diagram of the fourth embodiment of the present invention. Detailed Implementation

[0056] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, and these should all be considered to fall within the scope of the invention.

[0057] It should be noted that when a component is described as "fixed to" or "set to" another component, it can be directly on the other component or may be centered on another component. When a component is described as "connected to" another component, it can be directly connected to the other component or may be centered on another component.

[0058] This invention proposes an adapter for connecting the power plug of an electronic device to the power plugs of multiple power supplies. This adapter integrates the current supplied by multiple power supplies, thereby providing a larger current to the electronic device. In other words, by integrating the current from multiple power supplies through this adapter, several times the current can be output compared to that supplied by a single power supply / plug, while still meeting safety regulations. The following explanation uses two power supplies / plugs as an example.

[0059] Please refer to the following first. Figures 1 to 3 In a first embodiment of the adapter of the present invention, there is an output terminal 10, an input terminal 20, and a wire assembly 30, and the insulating base 40 of the adapter has two plug interfaces 41, an inner wall 42, and a side wall 43. The plug interfaces 41 are disposed at the input terminal 20 and are used for plugging in a power supply plug. The inner wall 42 is directly opposite the plug interfaces 41. The side wall 43 is located between the inner wall 42 and the plug interfaces 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 connection point is a smooth curved surface.

[0060] Please refer to the following: Figure 1 , Figure 3 ,and Figure 4 The output terminal 10 has a first output terminal 11 and a second output terminal 12, and optionally has an output grounding element 13. The output terminal 10 is used to connect to the 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, while the output grounding element 13 is used to electrically connect to the ground wire of the power supply plug of the electronic device.

[0061] The input terminal 20 includes a first input terminal group 201 and a second input terminal group 202. The first input terminal group 201 and the second input terminal group 202 are respectively disposed in the plug interface 41 and are used to connect the power supply plugs of the two power supplies respectively.

[0062] The first input terminal group 201 has a first input terminal 21a, a first movable terminal 21b, a third input terminal 23a, and a third movable terminal 23b, and optionally has a first input grounding element 25. The first input terminal 21a and the three input terminals 23a can be used as a live wire or a neutral line, respectively.

[0063] The first movable terminal 21b selectively contacts the first input terminal 21a, and is electrically connected to the first input terminal 21a by contact with the first input terminal 21a. The third movable terminal 23b selectively contacts the third input terminal 23a, and is electrically connected to the third input terminal 23a by contact with the third input terminal 23a. The first input terminal 21a and the first movable terminal 21b in the first input terminal group 201 may be a first group of electrodes, while the third input terminal 23a and the third movable terminal 23b in the first input terminal group 201 may be a second group of electrodes. Since the structures of the first group of electrodes and the second group of electrodes may be similar, the following description uses only the first group of electrodes as an example.

[0064] In the first set of electrodes, the first input terminal 21a may have an external connection portion 211, an internal connection portion 212, and a phase connection portion 213. The external connection portion 211 is used to electrically connect to one of the electrodes of the power supply plug. The internal connection portion 212 is spaced apart from the external connection portion 211. The phase connection portion 213 electrically connects the external connection portion 211 and the internal connection portion 212.

[0065] The first movable terminal 21b has a fixed end 214 and an electrical connection end 215 opposite to each other, and a middle section located between the fixed end 214 and the electrical connection end 215. The fixed end 214 of the first movable terminal 21b is fixed to the inner wall 42 of the insulating base 40, and the first movable terminal 21b extends from the inner wall 42 toward the insertion interface 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, thereby electrically connecting with the inner connection portion 212.

[0066] Please refer to the following: Figure 4 and Figure 5 The first group of electrodes of the first input terminal group 201 may further include a reset member 21c and a contact auxiliary member 21d.

[0067] The reset member 21c can be an elastic member, and more specifically, a spring clip. 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 more specifically, from the inner 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 abuts against the fixed end 214 and the middle section of the first movable terminal 21b. The end of the reset member 21c abuts against the abutment portion 431 of the sidewall 43 of the insulating base 40, and a gap is formed between the reset member 21c and the arcuate portion 432 of the sidewall 43 of the insulating base 40.

[0068] The contact aid 21d selectively pushes against the first movable terminal 21b, and by abutting against the first movable terminal 21b, the first movable terminal 21b makes contact with the first input terminal 21a to form an electrical connection. In this embodiment, the contact aid 21d, the first movable terminal 21b, and the inner connecting portion 212 of the first input terminal 21a are arranged in a row in the direction of movement of the first movable terminal 21b. Specifically, the contact aid 21d has an abutting slope that faces away from the first movable terminal 21b and is inclined toward the connector 41 of the adapter.

[0069] Please refer to the following: Figure 4 and Figure 6 Similarly, the second input 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 may optionally have a third input grounding member 26. The second movable terminal 22b selectively contacts the second input terminal 22a, and is electrically connected to the second input terminal 22a by contact with the second input terminal 22a. The fourth movable terminal 24b selectively contacts the fourth input terminal 24a, and is electrically connected to the fourth input terminal 24a by contact with the fourth input terminal 24a. Since the structures of the first input terminal group 201 and the second input terminal group 202 can be similar, they will not be described in detail here.

[0070] Please refer to the following: Figure 3 , Figure 4 ,and Figure 7The conductor assembly 30 includes a first output conductor 31, a first connecting conductor 32, a second connecting conductor 33, a second output conductor 34, and a grounding conductor 35. In the first embodiment, the first output conductor 31 is electrically connected to the first input terminal 21a and the first output terminal 11. The first connecting conductor 32 is electrically connected to the first movable terminal 21b and the second movable terminal 22b. The second connecting conductor 33 is electrically connected to the third movable terminal 23b and the fourth movable terminal 24b. The second output conductor 34 is electrically connected to the fourth input terminal 24a and the second output terminal 12. The grounding conductor 35 is electrically connected to the output grounding member 13, the first input grounding member 25, and the second input grounding member 26.

[0071] Through the above structure, when the power supply plug is connected to the first input terminal group 201, the power supply plug will push the first movable terminal 21b to contact the first input terminal 21a, and simultaneously push the third movable terminal 23b to contact the third input terminal 23a. When the power supply plug is connected to the second input 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.

[0072] Please refer to this as well. Figure 5 Specifically, when the power supply plug is connected to the first input terminal group 201, the power supply plug pushes against the abutment slope of the contact auxiliary member 21d. The contact auxiliary member 21d deflects at a larger angle as the power supply plug penetrates deeper into the connector 41, thereby pushing the first movable terminal 21b to deflect. This causes the electrical connection end 215 of the first movable terminal 21b to contact the inner connection portion 212 of the first input terminal 21a, forming an electrical connection. Simultaneously, based on the same principle, the third movable terminal 23b also contacts the third input terminal 23a as the power supply plug is inserted.

[0073] Please refer to the following: Figures 8 to 11 The second embodiment of the present invention is similar to the first embodiment, except that the relative positions of the first input terminal group 201 and the second input terminal group 202 are arranged side by side in the first embodiment and side by side in the second embodiment, but the connection relationship of each circuit component is the same. Another difference is that the second embodiment may not have a reset member and a contact auxiliary member. Instead, when the power supply plug is inserted, the power supply plug directly pushes against the first movable terminal 21b and the third movable terminal 23b to form an electrical connection with the first input terminal 21a and the third input terminal 23a, and the first movable terminal 21b and the third movable terminal 23b separate from the first input terminal 21a and the third input terminal 23a due to their own elasticity.

[0074] Please refer to the following: Figures 12 to 14Through 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 input terminal group 201 (e.g. Figure 12 As shown), the first movable terminal 21b contacts the first 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 input terminal group 202 (as shown), the first movable terminal 21b contacts the first input terminal 21a, and the third movable terminal 23b contacts the third input terminal 23a; Figure 13 As shown), the second active terminal 22b contacts the second input terminal 22a, and the fourth active terminal 24b contacts the fourth input terminal 24a. If we say that A and B are in contact, it can be understood as A and B being directly connected without any other medium, or A and B being connected through a specific medium to form a physical or electrical connection.

[0075] When the power plugs of two power supplies are simultaneously connected to the first input terminal group 201 and the second input terminal group 202 respectively, a complete circuit can be formed to power the electronic device connected to the output terminal 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, while 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. In this way, the current supplied by the two power supplies can be superimposed and output.

[0076] When the power supply plug of any power supply is unplugged (again, taking the first input terminal group 201 as an example), in the first embodiment (e.g.) Figure 5 As shown, the first movable terminal 21b and the third movable terminal 23b can be separated by the reset member 21c. However, since the main function of the first movable terminal 21b is to form an electrical connection and conduct electricity, the primary consideration in material selection is conductivity; conversely, the function of the reset member 21c is to assist the first movable terminal 21b in returning to its original position, so the primary consideration in material selection is elasticity. Furthermore, in the second embodiment (as shown...), Figure 12 As shown, 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.

[0077] Therefore, even if only the first input terminal group 201 or the second input terminal group 202 is connected to the power supply, the potential on the exposed input terminals remains zero, thus preventing accidental contact. For example, if the second input terminal group 202 is connected to the power supply while the first input terminal group 201 is not, then the first input terminal 21a and the third input terminal 23a are exposed. However, since the first movable terminal 21b and the third movable terminal 23b are not electrically connected to the first input terminal 21a and the third input terminal 23a, the potential on the first input terminal 21a and the third input terminal 23a remains zero, meeting safety requirements.

[0078] Please refer to the following: Figure 15 The third embodiment of the present invention is similar to the first or second embodiment, except for the connection method of the wires. Specifically, the adapter in the third embodiment may also have an output terminal, an input terminal, and a wire group. The output terminal has a first output terminal and a second output terminal. The input terminal includes a first input terminal group and a second input terminal group. The first input terminal group has a first input terminal 21a, a first movable terminal 21b, a third input terminal 23a, and a third movable terminal 23b, while the second input terminal group has a second input terminal 22a, a second movable terminal 22b, a fourth input terminal 24a, and a fourth movable terminal 24b.

[0079] The lead assembly includes a first output lead 31, a first connecting lead 32, a second connecting lead 33, and a second output lead 34. The first output lead 31 is electrically connected to both a first input terminal 21a and a first output terminal. The first connecting lead 32 is electrically connected to both a first movable terminal 21b and a second movable terminal 22b. The second connecting lead 33 is electrically connected to both a third movable terminal 23b and a fourth input terminal 24a. The second output lead 34 is electrically connected to both a fourth movable terminal 24b and a second output terminal.

[0080] Under normal circumstances, the potential of the electrode on the left side of the socket is zero (connected to the neutral line). Therefore, the potential of the third input terminal 23a and the fourth input terminal 24a remains zero after connecting the power supply plug. In other words, in the third embodiment, even if only the first input terminal group 201 is connected to the power supply, and 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 input terminal 24a are sequentially electrically connected. Therefore, the potential of the second input terminal 22a, the second movable terminal 22b, and the fourth input terminal 24a is also zero. At this time, even if the exposed fourth input terminal 24a is accidentally touched, it will not cause harm.

[0081] Please refer to the following: Figure 16 and Figure 17 The fourth embodiment of the present invention is similar to the third embodiment, except that the relative positions of the first input terminal group 201 and the second input terminal group 202 are arranged side by side in the third embodiment and side by side in the fourth embodiment, but the connection relationships of the circuit components are the same. Another difference is that the fourth embodiment may not have the reset member 21c and the contact auxiliary member 21d.

[0082] In summary, the adapter of this invention allows the current supplied by two power supplies to be superimposed and output, enabling high-power electronic devices to receive more power without increasing the voltage. Furthermore, in one specific embodiment, the first input terminal 21a is electrically connected to the first movable terminal 21b only when the first input terminal group 201 is connected to the power plug; the third input terminal 23a is electrically connected to the third movable terminal 23b only when the first input terminal group 201 is connected to the power plug; the second input terminal 22a is electrically connected to the second movable terminal 22b only when the second input terminal group 202 is connected to the power plug; and the fourth input terminal 24a is electrically connected to the fourth movable terminal 24b only when the second input terminal group 202 is connected to the power plug. Even if only one input terminal group is connected to the power plug at any given time, the potential of the exposed input terminals in the other input terminal group remains zero, eliminating the risk of accidental contact and complying with safety regulations. On the other hand, in certain specific embodiments, if only the first input terminal group 201 or the second input terminal group 202 is plugged into the power supply plug, a complete circuit is not formed. Therefore, the output terminal 10 will not supply current to the electronic device to protect the electronic device.

[0083] The detailed explanations of the above embodiments are intended only to explain the present invention so as to facilitate a better understanding of the present invention. However, these descriptions should not be construed as limiting the present invention for any reason. In particular, the various features described in different embodiments can be arbitrarily combined with each other to form other embodiments. Unless there is an explicit description to the contrary, these features should be understood to be applicable to any embodiment, and not limited to the described embodiments.

Claims

1. An adapter, characterized in that The adapter comprises: an output terminal set comprising a first output terminal and a second output terminal; a first input terminal set comprising a first input terminal and a first movable terminal, the first movable terminal being selectively electrically connected with the first input terminal; a second input terminal set comprising a second input terminal and a second movable terminal, the second movable terminal being selectively electrically connected with the second input terminal; the first input terminal set further comprising a third input terminal and a third movable terminal, the third movable terminal being selectively electrically connected with the third input terminal; the second input terminal set further comprising a fourth input terminal and a fourth movable terminal, the fourth movable terminal being selectively electrically connected with the fourth input terminal; a first connecting wire electrically connecting the first movable terminal and the second movable terminal; a second connecting wire electrically connecting the third movable terminal and the fourth movable terminal; a first output wire electrically connecting the first input terminal and the first output terminal; and a second output wire electrically connecting the fourth input terminal and the second output terminal; when the first input terminal is electrically connected with the first movable terminal and the second input terminal is electrically connected with the second movable terminal, the first output terminal is in conduction with the first input terminal and the second input terminal; when the second input terminal is electrically connected with the second movable terminal and the fourth input terminal is electrically connected with the fourth movable terminal, the second output terminal is in conduction with the third input terminal and the fourth input terminal. when the first input terminal is not electrically connected with the first movable terminal or the second input terminal is not electrically connected with the second movable terminal, the first input terminal and the second input terminal are in an insulating state.

2. The adapter of claim 1, wherein, when the second input terminal is not electrically connected with the second movable terminal or the fourth input terminal is not electrically connected with the fourth movable terminal, the second input terminal and the fourth input terminal are in an insulating state.

3. The adapter of claim 1, wherein, the first input terminal set further comprising a reset member connected to the first movable terminal and tending to separate the first movable terminal from the first input terminal.

4. The adapter of any one of claims 1 to 3, wherein, The adapter further comprises an insulating base comprising:

5. The adapter of claim 4, wherein, a plug-in interface; and an inner wall opposite to the plug-in interface; the first movable terminal comprising an opposite fixed end and an electrically connected end, and a middle section between the fixed end and the connected end; the fixed end is fixed to the inner wall, and the first movable terminal extends from the inner wall to the plug-in interface; and the reset member extends from the fixed end of the first movable terminal to the middle section of the first movable terminal, and abuts the fixed end and the middle section of the first movable terminal. The adapter further comprises an insulating base comprising:

6. The adapter of claim 4, wherein, a plug-in interface; an inner wall opposite to the plug-in interface; and a side wall between the inner wall and the plug-in interface, the side wall comprising: an abutting portion abutting an end portion of the reset member; and an arc-shaped portion connected to the abutting portion and the connection is smooth surface, a gap is formed between the arc-shaped portion and the reset member.

7. The adapter of any one of claims 1 to 3, wherein the first input terminal comprises: an outer connecting portion for external connection as an electrode; ​ an inner connecting portion, which is disposed apart from the outer connecting portion; and a connecting portion, which electrically connects the outer connecting portion and the inner connecting portion; the first movable terminal selectively contacts the inner connecting portion and is thereby electrically connected to the inner connecting portion.

8. The adapter of claim 7, wherein, The first input terminal set 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.

9. The adapter of claim 7, wherein, The first input terminal set further includes: a contact assisting member, which selectively pushes against the first movable terminal, and in the moving direction of the first movable terminal, the contact assisting member, the first movable terminal, and the inner connecting portion of the first input terminal are sequentially arranged in a line.

10. The adapter of claim 9, wherein, The contact assisting member includes an abutting inclined surface, which faces away from the first movable terminal and is inclined toward a plug-in interface of the adapter.

Images