Contact insert with electrically conductive component

Abstract

The utility model discloses a contact plug with conductive assembly, including wiring terminal and with lock plug, wiring terminal and with lock plug detachable connection, wiring terminal includes bottom plate and sets up the top plate on bottom plate, and the hollow part is formed between top plate and bottom plate, with lock plug sets up in the hollow part, with lock plug includes lock sleeve and fixed component, lock sleeve sets up between fixed component and top plate, and the side of lock sleeve is close to fixed component with fixed component fixed connection, and lock sleeve includes conductive assembly, and conductive assembly includes at least two conductive sheet, and every two adjacent conductive sheet fixed connection, and the side of every conductive sheet is close to top plate all with top plate joint. The utility model improves the overcurrent capacity of contact plug.

Description

Technical Field

[0001] This utility model relates to the field of electrical connection technology, and in particular to a contact plug with conductive components. Background Technology

[0002] In the field of electrical connections, wiring plugs are key components for connecting, disconnecting, and maintaining circuits. Locking wiring plugs, due to their ease of insertion and removal and maintenance, are widely used in electrical systems requiring frequent operation. However, this design also has inherent limitations. To ensure the effective operation of the locking structure and a compact size, the actual conductive contact area of ​​its electrical contacts is often limited, generally being small. This limited contact area directly affects the conductor's resistance and heat dissipation capacity, resulting in a relatively limited overcurrent capacity. When the current increases, the Joule effect causes a significant rise in the contact temperature, which not only accelerates contact oxidation and increases contact resistance, creating a vicious cycle, but may also lead to overheating, welding defects, or even fire risks, making it difficult to meet the needs of high-power, high-current applications.

[0003] In addition, although non-locking wiring plugs have a larger contact area and stronger overcurrent capacity, they are difficult to plug in and unplug, making them inconvenient for maintenance and replacement. Utility Model Content

[0004] To address the technical problems in the background art, this utility model provides a contact plug with conductive components, including a terminal block and a locking plug; the terminal block and the locking plug are detachably connected. The terminal block includes a base plate and a top plate disposed on the base plate; a hollow portion is formed between the top plate and the base plate; the locking insert is disposed within the hollow portion; The locking plug-in includes a locking kit and a fixing component; the locking kit is disposed between the fixing component and the top plate; the side of the locking kit near the fixing component is fixedly connected to the fixing component; the locking kit includes a conductive component; the conductive component includes at least two conductive pieces; every two adjacent conductive pieces are fixedly connected; the side of each conductive piece near the top plate is engaged with the top plate.

[0005] Furthermore, the terminal block also includes a first side plate and a second side plate; the top plate is disposed between the first side plate and the second side plate; the side of the first side plate near the top plate is fixedly connected to the top plate; the side of the second side plate near the top plate is fixedly connected to the top plate; the side of the first side plate near the bottom plate is fixedly connected to the bottom plate; the side of the second side plate near the bottom plate is fixedly connected to the bottom plate.

[0006] Furthermore, the locking kit also includes an elastic element and a wire connector; the elastic element is disposed between the conductive component and the wire connector; the side of the elastic element near the conductive component is fixedly connected to the conductive component; the side of the elastic element near the wire connector is detachably connected to the wire connector.

[0007] Furthermore, the fixing assembly includes a first fixing plate, a second fixing plate, and a third fixing plate; the second fixing plate and the third fixing plate are disposed on both sides of the first fixing plate; the side of the second fixing plate closest to the first fixing plate is fixedly connected to the first fixing plate; the side of the third fixing plate closest to the first fixing plate is fixedly connected to the first fixing plate.

[0008] Furthermore, the second fixing plate is an arc-shaped plate; the second fixing plate is bent away from the first fixing plate; a first heat dissipation channel is formed between the second fixing plate and the first fixing plate.

[0009] Furthermore, the third fixing plate is an arc-shaped plate; the third fixing plate is bent away from the first fixing plate; a second heat dissipation channel is formed between the third fixing plate and the first fixing plate.

[0010] Furthermore, the fixing assembly also includes a heat sink; the heat sink is detachably connected to the side of the second fixing plate near the first fixing plate; the heat sink is detachably connected to the side of the third fixing plate near the first fixing plate.

[0011] Furthermore, the top plate is an arc-shaped plate; the top plate bends towards the bottom of the terminal block; the shape of the top plate matches the shape of the conductive sheet on the side near the top plate.

[0012] Furthermore, an unlock button is provided on the top of the conductive component; the unlock button is fixedly connected to the conductive component.

[0013] Furthermore, the outer surface of the locking plug is provided with a first insulating protective sleeve; the first insulating protective sleeve is detachably connected to the locking plug; the outer surface of the terminal block is provided with a second insulating protective sleeve; the second insulating protective sleeve is detachably connected to the terminal block.

[0014] The beneficial effects of this utility model are: This utility model discloses a contact plug with conductive components, including a terminal block and a locking plug; the terminal block and the locking plug are detachably connected; the terminal block includes a base plate and a top plate disposed on the base plate; a hollow portion is formed between the top plate and the base plate; the locking plug is disposed within the hollow portion; the locking plug includes a locking kit and a fixing component; the locking kit is disposed between the fixing component and the top plate; the side of the locking kit near the fixing component is fixedly connected to the fixing component; the locking kit includes a conductive component; the conductive component includes at least two conductive pieces; every two adjacent conductive pieces are fixedly connected; each conductive piece is engaged with the top plate on the side near the top plate. By providing a terminal block with a hollow portion, the locking plug is easily inserted; by providing a locking plug with multiple conductive pieces, the contact area between the locking plug and the terminal block and the conductivity of both are increased, enabling it to carry a larger current and improving the overcurrent capacity of the contact plug. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a locking plug provided by this utility model; Figure 2 This is a schematic diagram of the structure of a wiring terminal provided by this utility model; Figure 3 The diagram below is a structural schematic of a locking kit provided by this utility model; Figure 4 The middle part is a structural schematic diagram of a fixing component provided by this utility model; In the figure, the corresponding reference numerals are: 1-terminal, 11-base plate, 12-top plate, 13-first side plate, 14-second side plate; 2- Locking insert, 21- Locking kit, 211- Conductive component, 212- Elastic element, 213- Wire connector, 22- Fixing component, 221- First fixing plate, 222- Second fixing plate, 223- Third fixing plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0019] like Figure 1-4 As shown, this utility model provides a contact plug with conductive components, including a terminal block 1 and a locking plug 2; the terminal block 1 and the locking plug 2 are detachably connected. The aforementioned terminal block 1 includes a base plate 11 and a top plate 12 disposed on the base plate 11; a hollow portion is formed between the top plate 12 and the base plate 11; the aforementioned locking insert 2 is disposed within the hollow portion; The aforementioned locking plug-in 2 includes a locking kit 21 and a fixing component 22; the locking kit 21 is disposed between the fixing component 22 and the top plate 12; the side of the locking kit 21 closest to the fixing component 22 is fixedly connected to the fixing component 22; the locking kit 21 includes a conductive component 211; the conductive component 211 includes at least two conductive pieces; every two adjacent conductive pieces are fixedly connected; the side of each conductive piece closest to the top plate 12 is engaged with the top plate 12.

[0020] In some embodiments, the terminal block 1 includes a base plate 11 and a top plate 12 disposed on the base plate 11; the terminal block 1 is provided with a slot, that is, a hollow portion formed between the top plate 12 and the base plate 11, and when the terminal block 1 is connected to the locking plug 2, the locking plug 2 is disposed within the hollow portion; the locking plug 2 includes a locking kit 21 and a fixing component 22, the setting direction of the locking kit 21 is parallel to the setting direction of the fixing component 22, and the locking kit 21 is disposed between the fixing component 22 and the top plate 12. 1. The side near the fixing component 22 is fixedly connected to the fixing component 22; the locking kit 21 includes a conductive component 211, which is composed of multiple conductive pieces, for example, four pieces, and each pair of adjacent conductive pieces is fixedly connected. The side of each conductive piece near the top plate 12 is snapped into the top plate 12, thereby achieving surface contact between the locking plug 2 and the terminal 1. By increasing the contact area between the locking plug 2 and the terminal 1, the conductivity of the contact plug is improved, and ultimately the overcurrent capability of the contact plug is improved.

[0021] In other embodiments, the number of conductive sheets can be set according to actual conditions.

[0022] In this utility model, the aforementioned terminal block 1 further includes a first side plate 13 and a second side plate 14; the aforementioned top plate 12 is disposed between the aforementioned first side plate 13 and the aforementioned second side plate 14; the side of the aforementioned first side plate 13 near the aforementioned top plate 12 is fixedly connected to the aforementioned top plate 12; the side of the aforementioned second side plate 14 near the aforementioned top plate 12 is fixedly connected to the aforementioned top plate 12; the side of the aforementioned first side plate 13 near the aforementioned bottom plate 11 is fixedly connected to the aforementioned bottom plate 11; the side of the aforementioned second side plate 14 near the aforementioned bottom plate 11 is fixedly connected to the aforementioned bottom plate 11.

[0023] In some embodiments, such as Figure 2 As shown, the terminal block 1 includes a first side plate 13 and a second side plate 14; both the first side plate 13 and the second side plate 14 are arranged vertically; the top plate 12 is disposed between the first side plate 13 and the second side plate 14, and the side of the first side plate 13 near the top plate 12, that is, the top of the first side plate 13 is fixedly connected to the top plate 12, and the side of the second side plate 14 near the top plate 12, that is, the top of the second side plate 14 is fixedly connected to the top plate 12; the side of the first side plate 13 near the bottom plate 11 is fixedly connected to the bottom plate 11, and the side of the second side plate 14 near the bottom plate 11 is fixedly connected to the bottom plate 11. This realizes the design of a slot, that is, a hollow part, on the terminal block, so that the terminal block can be connected to the locking plug, which improves the plugging and unplugging experience of the locking plug and the terminal block and the structural stability of the contact plug.

[0024] In this utility model, the aforementioned locking kit 21 further includes an elastic element 212 and a wire connector 213; the elastic element 212 is disposed between the conductive component 211 and the wire connector 213; the side of the elastic element 212 near the conductive component 211 is fixedly connected to the conductive component 211; the side of the elastic element 212 near the wire connector 213 is detachably connected to the wire connector 213.

[0025] In some embodiments, such as Figure 3 As shown, the locking kit 21 also includes an elastic element 212 and a wire connector 213. The elastic element 212 can be a spring, and the wire connector 213 is used to connect the wire. The elastic element 212, conductive component 211, and wire connector 213 are all arranged horizontally. The elastic element 212 is positioned between the conductive component 211 and the wire connector 213, with the side of the elastic element 212 near the conductive component 211 fixedly connected to it, and the side of the elastic element 212 near the wire connector 213 detachably connected to it. The wire connector ensures reliable fixing of the external wire to the locking plug; the elastic element provides precise locking pressure to the locking plug, allowing the spring force to automatically adjust when the locking plug is inserted or removed.

[0026] In other embodiments, the elastic element 212 may be configured according to the actual situation.

[0027] In this utility model, the fixing component 22 includes a first fixing plate 221, a second fixing plate 222, and a third fixing plate 223; the second fixing plate 222 and the third fixing plate 223 are disposed on both sides of the first fixing plate 221; the side of the second fixing plate 222 closest to the first fixing plate 221 is fixedly connected to the first fixing plate 221; the side of the third fixing plate 223 closest to the first fixing plate 221 is fixedly connected to the first fixing plate 221.

[0028] In some embodiments, such as Figure 4As shown, the fixing assembly 22 includes a first fixing plate 221, a second fixing plate 222, and a third fixing plate 223. The bottom of the first fixing plate 221 is arranged in a horizontal direction, and side plates arranged in a vertical direction are respectively arranged on both sides of the bottom of the first fixing plate 221. The second fixing plate 222 and the third fixing plate 223 are arranged on both sides of the first fixing plate 221, and the side of the second fixing plate 222 closer to the first fixing plate 221 is fixedly connected to the first fixing plate 221, and the side of the third fixing plate 223 closer to the first fixing plate 221 is fixedly connected to the first fixing plate 221. By setting the first fixing plate, the second fixing plate, and the third fixing plate, a rigid support frame is formed to resist lateral bending moment, improve the structural strength of the locking plug, prevent loosening, and avoid stress fatigue caused by repeated insertion and removal of the locking plug.

[0029] In this utility model, the second fixing plate 222 is an arc-shaped plate; the second fixing plate 222 is bent away from the first fixing plate 221; a first heat dissipation channel is formed between the second fixing plate 222 and the first fixing plate 221.

[0030] In some embodiments, such as Figure 4 As shown, the second fixing plate 222 is an arc-shaped plate, and the second fixing plate 222 is bent away from the first fixing plate 221 to form a first heat dissipation channel between the second fixing plate 222 and the first fixing plate 221. The first fixing plate 221 and the second fixing plate 222 can be made of high thermal conductivity metal alloys such as aluminum or copper. The metal itself is a thermally conductive medium, and heat can be efficiently transferred through the internal lattice vibration of the material. This utilizes air convection or metal thermally conductive materials to improve heat dissipation efficiency, avoids temperature rise caused by high current, and avoids overheating damage caused by long-term high-current operation. It achieves active heat dissipation through the first heat dissipation channel, extending the service life of the locking plug.

[0031] The third fixing plate 223 is an arc-shaped plate; the third fixing plate 223 is bent away from the first fixing plate 221; a second heat dissipation channel is formed between the third fixing plate 223 and the first fixing plate 221.

[0032] In some embodiments, such as Figure 4 As shown, the third fixing plate 223 is an arc-shaped plate, and the third fixing plate 223 is bent away from the first fixing plate 221 to form a second heat dissipation channel between the third fixing plate 223 and the first fixing plate 221. The first fixing plate 221 and the third fixing plate 223 can be made of high thermal conductivity metal alloys such as aluminum or copper. The metal itself is a thermally conductive medium, and heat can be efficiently transferred through the internal lattice vibration of the material. Thus, the heat dissipation efficiency is improved by utilizing air convection or metal thermally conductive materials, avoiding the temperature rise problem caused by large current, realizing active heat dissipation through the second heat dissipation channel, and extending the service life of the locking plug.

[0033] In this utility model, the fixing component 22 further includes a heat sink; the heat sink is detachably connected to the side of the second fixing plate 222 near the first fixing plate 221; the heat sink is detachably connected to the side of the third fixing plate 223 near the first fixing plate 221.

[0034] In some embodiments, the fixing component 22 further includes heat sinks; heat sinks can be provided on both the second fixing plate 222 and the third fixing plate 223, and the heat sinks are detachably connected to the side of the second fixing plate 222 near the first fixing plate 221; at the same time, the heat sinks are detachably connected to the side of the third fixing plate 223 near the first fixing plate 221; since both the second fixing plate 222 and the third fixing plate 223 are arc-shaped plates, the heat sinks can be arc-shaped aluminum heat sink fins, which are attached to the second fixing plate 222 and the top plate 12. The heat sinks are parallel to the airflow direction to maximize the use of airflow for rapid heat dissipation; heat sinks can also be provided on the first fixing plate 221. Since the first fixing plate 221 is a flat plate, a copper heat spreader can be provided to achieve rapid lateral heat conduction and balance the temperature distribution; by providing heat sinks on the first fixing plate, the second fixing plate, and the third fixing plate, the heat dissipation area is effectively increased, air convection is enhanced, the heat dissipation efficiency of the contact plug is improved, and the service life of the contact plug is extended.

[0035] In other embodiments, the heat sink can be configured according to the actual situation.

[0036] In this invention, the top plate 12 is an arc-shaped plate; the top plate 12 is bent toward the side near the bottom of the terminal 1; the shape of the top plate 12 matches the shape of the conductive sheet on the side near the top plate 12.

[0037] In some embodiments, such as Figure 2 As shown, the top plate 12 is an arc-shaped plate, and the top plate 12 bends towards the bottom of the terminal 1, so that the curved contour of the top plate 12 forms a natural guide groove. The shape of the top plate 12 matches the shape of the conductive sheet near the top plate 12. When the locking plug 2 is inserted into the terminal 1, the conductive sheet is automatically corrected in position, reducing alignment deviation and avoiding mechanical wear during the insertion process. In addition, the arc-shaped top plate design improves the contact panel between the terminal and the locking plug, and improves the overcurrent capacity of the contact plug.

[0038] In this invention, an unlocking button is provided on the top of the conductive component 211; the unlocking button is fixedly connected to the conductive component 211.

[0039] In some embodiments, an unlocking button is provided on the top of the conductive component 211, and the unlocking button is fixedly connected to the conductive component 211. When the locking plug 2 is inserted into the terminal 1, the unlocking button is higher than the conductive component 211 and is in a locked state, preventing accidental triggering by external force and preventing loosening due to external force or vibration. When the terminal 1 and the locking plug 2 need to be separated, the user actively presses the unlocking button to apply a certain force to unlock and separate the terminal 1 from the locking plug 2. By setting the unlocking button, the operating force is concentrated, which is convenient for user operation and realizes the rapid separation of the locking plug and the terminal.

[0040] In this utility model, the outer surface of the locking plug 2 is provided with a first insulating protective sleeve; the first insulating protective sleeve is detachably connected to the locking plug 2; the outer surface of the terminal block 1 is provided with a second insulating protective sleeve; the second insulating protective sleeve is detachably connected to the terminal block 1.

[0041] In some embodiments, the outer surface of the locking plug 2 is provided with a first insulating protective sleeve, which is detachably connected to the outside of the locking plug 2, exposing only the conductive component 211 and the unlocking button, so that the conductive component 211 is engaged with the top plate 12, and the unlocking button is provided to enable quick separation of the locking plug 2 from the terminal 1; the outer surface of the terminal 1 is provided with a second insulating protective sleeve, which is detachably connected to the outer surface of the terminal 1, exposing only the top plate 12, so that the top plate 12 of the terminal 1 is engaged with the conductive component 211 of the locking plug 2, thereby achieving the connection between the terminal 1 and the locking plug 2; by providing a first insulating protective sleeve on the outer surface of the locking plug and a second insulating protective sleeve on the outer surface of the terminal, the safety performance of the contact plug is enhanced, effectively resisting the impact of environmental degradation.

[0042] The working principle of this contact plug with conductive components is as follows: When the terminal block 1 and the locking plug 2 need to be connected, the locking plug 2 slides along the horizontal direction of the top plate 12-bottom plate 11. The locking plug 2 is located in the hollow part of the terminal block 1. The elastic element 212 first extends and then retracts, and the conductive component 211 automatically unfolds and springs back to lock onto the top plate 12. At this time, the unlock button is in the locked state, so that the terminal block 1 and the locking plug 2 are automatically locked. When the terminal block 1 and the locking plug 2 need to be separated, the unlock button on the top of the conductive component 211 is pressed, the conductive component 211 automatically unfolds, and the terminal block 1 and the locking plug 2 are unlocked. At this time, the two are quickly separated.

[0043] The beneficial effects of this utility model are: This utility model discloses a contact plug with conductive components, including a terminal block and a locking plug; the terminal block and the locking plug are detachably connected; the terminal block includes a base plate and a top plate disposed on the base plate; a hollow portion is formed between the top plate and the base plate; the locking plug is disposed within the hollow portion; the locking plug includes a locking kit and a fixing component; the locking kit is disposed between the fixing component and the top plate; the side of the locking kit near the fixing component is fixedly connected to the fixing component; the locking kit includes a conductive component; the conductive component includes at least two conductive pieces; every two adjacent conductive pieces are fixedly connected; the side of each conductive piece near the top plate is engaged with the top plate. By designing terminals with hollow sections, the insertion of locking plugs is facilitated; by designing locking plugs with multiple conductive plates, the contact area between the locking plug and the terminal is increased, improving the overcurrent capacity of the contact plug; by designing fixing components to form heat dissipation channels, active heat dissipation is achieved through the heat dissipation channels, extending the service life of the contact plug; and by designing unlocking buttons, quick separation of the terminal and the locking plug is achieved, making both easy to plug and unplug.

[0044] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A contact plug having an electrically conductive component, characterized by It includes a terminal block (1) and a locking plug (2); the terminal block (1) and the locking plug (2) are detachably connected; The terminal block (1) includes a base plate (11) and a top plate (12) disposed on the base plate (11); a hollow portion is formed between the top plate (12) and the base plate (11); the locking plug (2) is disposed within the hollow portion; The locking plug-in (2) includes a locking kit (21) and a fixing component (22); the locking kit (21) is disposed between the fixing component (22) and the top plate (12); the side of the locking kit (21) near the fixing component (22) is fixedly connected to the fixing component (22); the locking kit (21) includes a conductive component (211); the conductive component (211) includes at least two conductive pieces; every two adjacent conductive pieces are fixedly connected; the side of each conductive piece near the top plate (12) is engaged with the top plate (12).

2. The contact insert of claim 1, wherein The terminal block (1) further includes a first side plate (13) and a second side plate (14); the top plate (12) is disposed between the first side plate (13) and the second side plate (14); the side of the first side plate (13) near the top plate (12) is fixedly connected to the top plate (12); the side of the second side plate (14) near the top plate (12) is fixedly connected to the top plate (12); the side of the first side plate (13) near the bottom plate (11) is fixedly connected to the bottom plate (11); the side of the second side plate (14) near the bottom plate (11) is fixedly connected to the bottom plate (11).

3. The contact insert of claim 2, wherein, The locking kit (21) also includes an elastic element (212) and a wire connector (213); the elastic element (212) is disposed between the conductive component (211) and the wire connector (213); the side of the elastic element (212) near the conductive component (211) is fixedly connected to the conductive component (211); the side of the elastic element (212) near the wire connector (213) is detachably connected to the wire connector (213).

4. The contact insert of claim 3, wherein, The fixing component (22) includes a first fixing plate (221), a second fixing plate (222), and a third fixing plate (223); the second fixing plate (222) and the third fixing plate (223) are disposed on both sides of the first fixing plate (221); the side of the second fixing plate (222) closest to the first fixing plate (221) is fixedly connected to the first fixing plate (221); the side of the third fixing plate (223) closest to the first fixing plate (221) is fixedly connected to the first fixing plate (221).

5. The contact insert of claim 4, wherein, The second fixing plate (222) is an arc-shaped plate; the second fixing plate (222) is bent away from the first fixing plate (221); a first heat dissipation channel is formed between the second fixing plate (222) and the first fixing plate (221).

6. The contact insert of claim 5, wherein, The third fixing plate (223) is an arc-shaped plate; the third fixing plate (223) is bent away from the first fixing plate (221); a second heat dissipation channel is formed between the third fixing plate (223) and the first fixing plate (221).

7. The contact insert of claim 6, wherein, The fixing component (22) further includes a heat sink; the heat sink is detachably connected to the side of the second fixing plate (222) near the first fixing plate (221); the heat sink is detachably connected to the side of the third fixing plate (223) near the first fixing plate (221).

8. The contact plug according to claim 1, characterized in that, The top plate (12) is an arc-shaped plate; the top plate (12) is bent toward the bottom of the terminal (1); the shape of the top plate (12) matches the shape of the conductive sheet on the side near the top plate (12).

9. The contact plug according to claim 8, characterized in that, An unlock button is provided on the top of the conductive component (211); the unlock button is fixedly connected to the conductive component (211).

10. The contact plug according to claim 9, characterized in that, The outer surface of the locking plug (2) is provided with a first insulating protective sleeve; the first insulating protective sleeve is detachably connected to the locking plug (2); the outer surface of the terminal block (1) is provided with a second insulating protective sleeve; the second insulating protective sleeve is detachably connected to the terminal block (1).

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