Plug and electric device

By designing a plug with a rotating shaft and lead-out member, forming a beam wire channel and stably connecting, the safety hazards of existing folding plugs when the output current is large and the inconvenient wire threading problems are solved, and high safety and stability are achieved. plug.

CN119171111APending Publication Date: 2024-12-20LANTO ELECTRONIC LIMITED
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Patent Information

Application Number
CN202411545800.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2024-12-20

AI Technical Summary

Technical Problem

The existing folding plugs have safety hazards when the output current is large, and are prone to ignition, which cannot meet the demand for large output current, and the wire is not convenient to connect, affecting stability and safety.

Method used

A plug including a base, plug and connector is designed to fold and extend through the design of the rotating shaft and lead member, forming a beam channel to facilitate the passage of the conductor, and through the third connection part and the side of the lead member The walls are kept abutted to ensure stable electrical connections and avoid ignition.

Benefits of technology

It can meet the demand for large output current, improve the safety and stability of the plug, avoid ignition, and facilitate the wiring and connection of the wires.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of plugs, and discloses a plug and a power utilization device, and the plug comprises a base, an insertion piece and a connecting piece. A containing groove is formed in the base, the inserting piece comprises a rotating shaft and two leading-out pieces, the two leading-out pieces are arranged on the rotating shaft in a spaced mode, the rotating shaft is rotationally connected to the base and can rotate the two leading-out pieces to stretch out of or retract into the containing groove, and the connecting piece is arranged on the base and provided with a first connecting part, a second connecting part and a third connecting part. The second connecting part is electrically connected with the two leading-out pieces in the extending state, a wire bunching channel is formed between the first connecting part and the inner wall of the containing groove, the wire bunching channel is configured to be provided with a wire in a penetrating mode, the first connecting part is used for being connected with a wire core body of the wire, and the third connecting part abuts against the side walls of the leading-out pieces. The power utilization device comprises a wire and a plug, and the wire penetrates through the wire bunching channel and is connected to the first connecting part. Through the above arrangement, the plug can meet the requirement of large output current, and is higher in safety.
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Description

Technical Field

[0001] The present invention relates to the technical field of plugs, and in particular to a plug and an electrical device. Background Art

[0002] The connector of general electronic products and the pin of electrical appliances are called plugs. With the rapid development of electronic products, people set the power pins of the plug to be rotatable and foldable to reduce the size of the plug itself, which is convenient for people to carry and use in daily life.

[0003] The existing folding plug includes a pin and a metal spring, and the metal spring is electrically connected to the circuit board, thus occupying the space inside the plug for laying out the wires, making it inconvenient to pass through and connect the wires, thereby bringing certain safety hazards. Moreover, the existing folding plug is only suitable for the state of small output current, and cannot meet the requirements of large output current. When the plug with large output current is inserted into the socket, it is easy to cause sparks because the metal spring is not in real contact with the pin, which reduces the stability and safety of the plug when in use. Summary of the invention

[0004] The object of the present invention is to provide a plug which can meet the demand for large output current and has higher safety.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A plug, comprising:

[0007] A base, wherein a receiving groove is provided in the base;

[0008] The inserting member includes a rotating shaft and two lead-out members, wherein the two lead-out members are arranged at intervals on the rotating shaft, and the rotating shaft is rotatably connected to the base and can rotate the two lead-out members to extend or retract into the containing groove;

[0009] A connecting member is arranged on the base, and is provided with a first connecting part, a second connecting part and a third connecting part. The second connecting part is electrically connected to the two lead-out members in the extended state. A wiring channel is formed between the first connecting part and the inner wall of the accommodating groove, and the wiring channel is configured to pass a wire. The first connecting part is used to connect the wire core of the wire, and the third connecting part is maintained in contact with the side wall of the lead-out member.

[0010] Optionally, the third connecting portion includes an extension portion and a clamping plate; the extension portion extends along the axial direction of the rotating shaft, and the clamping plates are respectively extended toward the rotating shaft on both sides of the extension portion, and the two clamping plates can elastically clamp the side walls of the lead-out member.

[0011] Optionally, the side wall of the lead-out piece is provided with an extended end, the extended end extends along the axial direction of the rotating shaft, and the two clamping plates are provided with arc-shaped contact portions matching the shape of the extended end.

[0012] Optionally, the first connecting portion includes a first bending section and a second bending section connected in sequence, the first bending section extends along a first direction, the second bending section extends along a second direction, the first direction and the second direction are arranged at an angle, and riveting arms are arranged on both sides of the second bending section.

[0013] Optionally, two limiting plates are spaced apart on the connecting member, a protrusion is provided on the base, and the protrusion is assembled between the two limiting plates.

[0014] Optionally, a positioning hole is formed on the connecting member, a positioning member is formed on the base, and the positioning member passes through the positioning hole.

[0015] Optionally, the plug further comprises a pressing plate, wherein the pressing plate is connected to the base, and the connecting member is provided with a connecting groove, wherein the pressing plate is clamped in the connecting groove.

[0016] Optionally, one of the connecting member and the pressing plate is provided with a snap-fitting hole, and the other is provided with a protrusion snap-fitted to the snap-fitting hole.

[0017] Optionally, the connecting piece is made of phosphor bronze.

[0018] Another object of the present invention is to provide an electrical device that can meet the demand for large output current and has higher safety.

[0019] To achieve this object, the present invention adopts the following technical solutions:

[0020] An electrical device comprises a wire and the plug as described above, wherein the wire passes through the wire harness channel and is connected to the first connecting portion.

[0021] Beneficial effects of the present invention:

[0022] The present invention provides a plug and an electric device, wherein the plug comprises a base, an insert and a connector. A receiving groove is provided in the base, and the insert comprises a rotating shaft and two lead-out parts, wherein the two lead-out parts are arranged at intervals on the rotating shaft and are respectively used to connect a live wire and a neutral wire to meet the normal use of the plug. The rotating shaft is rotatably connected to the base, and can rotate the two lead-out parts to extend or retract in the receiving groove, so that the insert can be in a folded position and a plug-in position to meet the different use requirements of the user for the plug. The connector is provided with a first connecting part, a second connecting part and a third connecting part, and the second connecting part is electrically connected to the two lead-out parts in the extended state to ensure the stability of the plug during the use of electricity. A wire bundle channel for passing the wire is formed between the first connecting part and the inner wall of the receiving groove, so that the passing and connection of the wire are more convenient, and the space utilization and safety of the internal structure of the plug are improved. The first connecting part is used to connect the wire core of the wire, which ensures the electrical connection between the connector and the wire core, and can meet the use requirements of large output current. The third connection part is in contact with the side wall of the lead-out member, so that the lead-out member always maintains electrical connection with the connection member during the rotation process, thereby improving the safety and stability of the plug and avoiding sparks when the plug is inserted into the socket. The electrical device includes a wire and a plug, and the wire passes through the wire harness channel and is connected to the first connection part. Through the above arrangement, the plug of the present application can meet the demand for large output current and has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of a plug provided by an embodiment of the present invention;

[0024] Figure 2 is a first isometric view of a partial structure of a plug provided by an embodiment of the present invention;

[0025] Figure 3 is a second isometric view of a portion of the structure of the plug provided by an embodiment of the present invention;

[0026] Figure 4 is a first isometric view of the internal structure of the plug provided by an embodiment of the present invention;

[0027] Figure 5 is a second isometric view of the internal structure of the plug provided by an embodiment of the present invention;

[0028] Figure 6 is a front view of the internal structure of the plug provided by an embodiment of the present invention;

[0029] Figure 7 yes Figure 6 Sectional view at AA in the middle;

[0030] Figure 8 is a schematic diagram of an insert provided by an embodiment of the present invention being in a folded position;

[0031] Fig. 9 It is a schematic diagram of the plug-in component provided by an embodiment of the present invention being located at the plug-in position.

[0032] In the figure:

[0033] 1. Base; 11. Accommodating groove; 12. Cable channel; 13. Raised portion; 14. Positioning member; 2. Connecting member; 21. First connecting portion; 211. First bending section; 212. Second bending section; 2121. Riveting arm; 22. Second connecting portion; 23. Third connecting portion; 231. Clamping plate; 2311. Arc-shaped contact portion; 232. Extension portion; 24. Limiting plate; 25. Positioning hole; 26. Connecting groove; 27. Clamping hole; 3. Inserting member; 31. Abutting portion; 32. Rotating shaft; 33. Leading member; 331. Extended end; 4. Pressing plate; 41. Bump. DETAILED DESCRIPTION

[0034] 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.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] like Figure 1-Figure 9 As shown, this embodiment provides a plug, which includes a base 1, an inserting member 3 and a connecting member 2. A receiving groove 11 is provided in the base 1, and the inserting member 3 includes a rotating shaft 32 and two lead-out members 33, the two lead-out members 33 are arranged at intervals on the rotating shaft 32, the rotating shaft 32 is rotatably connected to the base 1, and can rotate the two lead-out members 33 to extend or retract in the receiving groove 11, and the connecting member 2 is arranged on the base 1, and the connecting member 2 is provided with a first connecting portion 21, a second connecting portion 22 and a third connecting portion 23, the second connecting portion 22 is electrically connected to the two lead-out members 33 in the extended state, and a wire harness channel 12 is formed between the first connecting portion 21 and the inner wall of the receiving groove 11, and the wire harness channel 12 is configured to pass a wire, the first connecting portion 21 is used to connect the wire core of the wire, and the third connecting portion 23 is kept in contact with the side wall of the lead-out member 33.

[0039] In this embodiment, a receiving groove 11 is provided in the base 1, and the plug-in member 3 includes a rotating shaft 32 and two lead-out members 33, and the two lead-out members 33 are arranged at intervals on the rotating shaft 32, respectively used to connect the live wire and the neutral wire to meet the normal use of the plug. The rotating shaft 32 is rotatably connected to the base 1, and can rotate the two lead-out members 33 to extend or retract in the receiving groove 11, so that the plug-in member 3 can be in a folded position and a plug-in position to meet the different use requirements of the user for the plug. The connector 2 is provided with a first connecting portion 21, a second connecting portion 22 and a third connecting portion 23, and the second connecting portion 22 is electrically connected to the two lead-out members 33 in the extended state to ensure the stability of the plug during the use of electricity. A wire bundle channel 12 for passing the wire is formed between the first connecting portion 21 and the inner wall of the receiving groove 11, which makes the passing and connection of the wire more convenient, and improves the space utilization and safety of the internal structure of the plug. The first connecting portion 21 is used to connect the wire core of the wire, ensuring the electrical connection between the connector 2 and the wire core, which can meet the use requirements of large output current. The third connection portion 23 is in contact with the side wall of the lead-out member 33, so that the lead-out member 33 always maintains electrical connection with the connector 2 during the rotation process, thereby improving the safety and stability of the plug and preventing sparks when the plug is inserted into the socket. Through the above arrangement, the plug of this embodiment can meet the demand for large output current and has higher safety.

[0040] The specific structure of the plug is described below:

[0041] Specifically, Figure 1-Figure 9 As shown, the plug-in component 3 includes a rotating shaft 32 and two lead-out components 33. The rotating shaft 32 is rotatably connected to the base 1, so that the plug-in component 3 can flexibly rotate around the rotating shaft 32 on the base 1, thereby realizing the functions of folding, storing, extending and unfolding the plug-in component 3. The two lead-out components 33 are arranged at intervals on the rotating shaft 32, and are used to connect the live wire and the neutral wire respectively, thereby ensuring the normal use of the plug. In addition, a limit block is provided on the rotating shaft 32. When the rotating shaft 32 rotates relative to the base 1, the limit block abuts against the base 1, which can limit the rotation of the rotating shaft 32 and prevent the plug-in component 3 from rotating excessively.

[0042] More specifically, in this embodiment, the lead-out member 33 is a metal plate, which is used to make electrical contact with the socket. The lead-out member 33 is usually made of high-toughness iron, nickel-plated copper and other metal materials to ensure that it does not deform during insertion and extraction and is durable. The shaft 32 is insulated from the lead-out member 33 to avoid short circuits. In other embodiments, the lead-out member 33 is a rod-shaped structure, that is, as long as the above-mentioned functions can be achieved, the specific structure of the lead-out member 33 is not limited too much.

[0043] Specifically, Figure 4 and Figure 8 and Fig. 9 As shown, each lead-out member 33 is provided with an abutment portion 31, and the connector 2 is provided with two. The two connectors 2 can abut against the two abutment portions 31 one by one, ensuring that when the plug-in member 3 is rotated to the plug-in position (i.e., the lead-out member 33 extends from the receiving groove 11), the abutment portion 31 of each lead-out member 33 can accurately and reliably abut against the second connecting portion 22 on the corresponding connector 2, thereby ensuring the normal operation of the plug and reducing electrical faults caused by poor contact or connection errors. When the plug-in member 3 is rotated to the folded position (i.e., the lead-out member 33 is retracted in the receiving groove 11), the abutment portion 31 is spaced apart from the second connecting portion 22 to prevent the abutment portion 31 from accidentally contacting and connecting with the second connecting portion 22.

[0044] More specifically, in this embodiment, the abutment portion 31 is a protrusion. When the plug-in member 3 is rotated from the folded position to the plug-in position, the protrusion gradually approaches the second connection portion 22 until the protrusion elastically abuts against the second connection portion 22, thereby achieving a stable and reliable electrical connection between the plug-in member 3 and the connector 2. When the lead-out member 33 is inserted into the socket, the current can smoothly pass through the lead-out member 33, the second connection portion 22 and the first connection portion 21 and then be transmitted to the wire and the corresponding electrical device, thereby ensuring the normal operation of the plug and the electrical device. In other embodiments, the abutment portion 31 is a columnar structure, that is, as long as the above-mentioned functional role can be achieved, the specific structure of the abutment portion 31 is not excessively limited.

[0045] Specifically, Figure 4-Figure 9 As shown, the third connection part 23 includes an extension part 232 and a clamping plate 231. The extension part 232 extends along the axial direction of the rotating shaft 32 so that the third connection part 23 can extend and keep contact with the side wall of the lead-out member 33. The two sides of the extension part 232 are respectively extended toward the rotating shaft 32 with clamping plates 231. The two clamping plates 231 can elastically clamp the side wall of the lead-out member 33 to ensure that the electrical connection between the lead-out member 33 and the connector 2 is always stable during the rotation of the plug-in member 3 relative to the base 1. This effectively prevents sparking caused by poor contact and improves the safety and stability of the plug.

[0046] Specifically, Figure 4-Figure 9 As shown, the side wall of the lead-out piece 33 is provided with an extension end 331, and the extension end 331 extends along the axial direction of the rotating shaft 32, ensuring that when the plug-in piece 3 rotates around the axis of the rotating shaft 32, the lead-out piece 33 can always maintain a stable connection state with the third connecting portion 23, thereby enhancing the stability of the electrical connection. The two clamping plates 231 are provided with arc-shaped contact portions 2311 that match the shape of the extension ends 331, so that the clamping plates 231 can fit the surface of the extension ends 331 more closely, thereby ensuring the firmness of the electrical connection, and when the plug-in piece 3 rotates or is subjected to other external forces, the electrical connection can also be kept stable. Such a setting not only improves the safety of the plug, but also enables the plug to maintain a good contact state during long-term use.

[0047] More specifically, in this embodiment, the extended end 331 is a guide post, which is arranged on the side wall of the lead-out piece 33 and extends along the axial direction of the rotating shaft 32. The guide post is clamped between the two arc-shaped contact portions 2311 to ensure that the connector 2 can always be electrically connected to the lead-out piece 33 through the guide post, thereby improving the safety and stability of the plug and avoiding sparks when the plug is inserted into the socket.

[0048] Specifically, Figure 4-Figure 9 As shown, the first connection portion 21 includes a first bending section 211 and a second bending section 212 connected in sequence, the first bending section 211 extends along a first direction, the second bending section 212 extends along a second direction, and the first direction and the second direction are arranged at an angle, so that the second bending section 212 can be easily connected to the wire core of the wire, thereby ensuring the stability and reliability of the electrical connection. Riveting arms 2121 are arranged on both sides of the second bending section 212, and the riveting arms 2121 are used to rivet and connect to the wire core of the wire, thereby ensuring the stability of the electrical connection between the first connection portion 21 and the wire core, so as to meet the use requirements of the plug with large output current.

[0049] Specifically, Figure 4 and Figure 5As shown, two limiting plates 24 are provided on the connecting member 2, and a protrusion 13 is provided on the base 1. The protrusion 13 is assembled between the two limiting plates 24, so that during the assembly process, the protrusion 13 can be smoothly inserted along the space between the two limiting plates 24 to ensure the correct assembly between the connecting member 2 and the base 1. Among them, the protrusion 13 of this embodiment is a block-shaped or rod-shaped protrusion, and the specific structure of the protrusion 13 is not limited too much here.

[0050] Specifically, Figure 4 and Figure 5 As shown, the connector 2 is provided with a positioning hole 25, and the base 1 is provided with a positioning member 14, and the positioning member 14 is inserted into the positioning hole 25. Through the cooperation of the positioning hole 25 and the positioning member 14, the connector 2 and the base 1 can be accurately aligned during the assembly process, so as to facilitate the assembly operation and improve the efficiency. Among them, the positioning member 14 of this embodiment is a positioning rod or a positioning block, and the specific structure of the positioning member 14 is not limited too much here.

[0051] Specifically, Figure 2-Figure 9 As shown, the plug also includes a pressing plate 4, which is connected to the base 1. The connecting member 2 is provided with a connecting groove 26. The pressing plate 4 is clamped in the connecting groove 26, so that the pressing plate 4, the connecting member 2 and the base 1 form a stable overall structure, and can protect the electrical components between the pressing plate 4 and the base 1, thereby improving the safety and reliability of the plug.

[0052] More specifically, if Figure 8 As shown, one end of the connecting member 2 is folded and extended toward one side of the connecting member 2 to form a second connecting portion 22, and the other end of the connecting member 2 is folded toward the other side of the connecting member 2 to form a connecting groove 26. The folding setting of the connecting member 2 simplifies the processing process, reduces the production cost and processing difficulty, and improves the production efficiency.

[0053] Specifically, Figure 2-Figure 9 As shown, one of the connecting member 2 and the pressing plate 4 is provided with a snap-in hole 27, and the other is provided with a protrusion 41 snap-into the snap-in hole 27. The cooperation between the snap-in hole 27 and the protrusion 41 can not only simplify the assembly process, but also ensure a firm connection between the connecting member 2 and the pressing plate 4 to prevent loosening or falling off due to vibration or impact during use.

[0054] More specifically, in this embodiment, a snap-in hole 27 is provided on each connector 2, and a protrusion 41 is provided on the pressing plate 4. During assembly, the pressing plate 4 extends into the connecting groove 26, and is snap-fitted into the snap-in hole 27 through the protrusion 41, thereby achieving a stable connection between the pressing plate 4 and the connector 2. In other embodiments, the snap-in hole 27 is provided on the pressing plate 4, and the protrusion 41 is provided on the connector 2. The specific locations of the snap-in hole 27 and the protrusion 41 are not limited here, as long as the above-mentioned functions can be achieved.

[0055] Specifically, Figure 1-Figure 9 As shown, the connector 2 is made of phosphor bronze. Since phosphor bronze has a relatively high hardness, the connector 2 made of phosphor bronze can withstand greater stress and load and is not prone to deformation or breakage.

[0056] This embodiment also provides an electrical device, which includes a wire and a plug. The wire passes through the wire harness channel 12 and is connected to the first connection portion 21, which can meet the demand for large output current and has higher safety. The electrical device includes but is not limited to a water dispenser, a notebook, a washing machine, an electric fan, an air conditioner, etc., and the specific structure and use of the electrical device are not limited here.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A plug, characterized in that: include: A base (1), wherein a receiving groove (11) is provided in the base (1); The inserting member (3) comprises a rotating shaft (32) and two lead-out members (33), wherein the two lead-out members (33) are arranged at intervals on the rotating shaft (32), and the rotating shaft (32) is rotatably connected to the base (1) and can rotate the two lead-out members (33) to extend or retract into the receiving groove (11); A connecting member (2) is arranged on the base (1), and the connecting member (2) is provided with a first connecting portion (21), a second connecting portion (22) and a third connecting portion (23), the second connecting portion (22) being electrically connected to the two lead-out members (33) in an extended state, a wiring channel (12) being formed between the first connecting portion (21) and the inner wall of the accommodating groove (11), the wiring channel (12) being configured to pass a wire, the first connecting portion (21) being used to connect the wire core of the wire, and the third connecting portion (23) being in contact with the side wall of the lead-out member (33).

2. The plug according to claim 1, characterized in that: The third connecting portion (23) comprises an extension portion (232) and a clamping plate (231); the extension portion (232) extends along the axial direction of the rotating shaft (32), and the clamping plates (231) are respectively extended on both sides of the extension portion (232) toward the rotating shaft (32), and the two clamping plates (231) can elastically clamp the side walls of the lead-out member (33).

3. The plug according to claim 2, characterized in that: The side wall of the lead-out piece (33) is provided with an extended end (331), and the extended end (331) extends along the axial direction of the rotating shaft (32). The two clamping plates (231) are provided with arc-shaped contact portions (2311) matching the shape of the extended end (331).

4. The plug according to claim 1, characterized in that: The first connecting portion (21) comprises a first bending section (211) and a second bending section (212) which are connected in sequence, the first bending section (211) extends along a first direction, the second bending section (212) extends along a second direction, the first direction and the second direction are arranged at an angle, and riveting arms (2121) are arranged on both sides of the second bending section (212).

5. The plug according to claim 1, characterized in that: Two limiting plates (24) are arranged at intervals on the connecting member (2), a raised portion (13) is arranged on the base (1), and the raised portion (13) is assembled between the two limiting plates (24).

6. The plug according to claim 1, characterized in that: The connecting member (2) is provided with a positioning hole (25), the base (1) is provided with a positioning member (14), and the positioning member (14) is inserted into the positioning hole (25).

7. The plug according to any one of claims 1 to 6, characterized in that: The plug further comprises a pressing plate (4), wherein the pressing plate (4) is connected to the base (1), and a connecting groove (26) is provided on the connecting member (2), wherein the pressing plate (4) is clamped in the connecting groove (26).

8. The plug according to claim 7, characterized in that: One of the connecting piece (2) and the pressing plate (4) is provided with a clamping hole (27), and the other is provided with a protrusion (41) clamped in the clamping hole (27).

9. The plug according to any one of claims 1 to 6, characterized in that: The connecting piece (2) is made of phosphor bronze.

10. An electrical device, characterized in that: It comprises a wire and the plug according to any one of claims 1 to 9, wherein the wire passes through the wire harness channel (12) and is connected to the first connecting portion (21).