Leakage protection device

Abstract

The application discloses a leakage protection device, which comprises a leakage protection cabinet, a leakage protection piece, and a cable connecting piece. The leakage protection cabinet is used for laying a cable. The leakage protection piece is located in the leakage protection cabinet. The cable connecting piece is connected with the leakage protection piece and comprises first and second installation plates which are arranged at intervals. The first installation plate is provided with a current connecting pad. The second installation plate is provided with an insulating screw. One end of the insulating screw is arranged opposite to the current connecting pad. The end of the insulating screw, which faces the current connecting pad, is provided with an abutting block. The insulating screw is adapted to move in the distribution direction of the first and second installation plates. The insulating screw is threadedly connected with the second installation plate, so that the insulating screw and the current connecting pad clamp or loosen the electric core of the cable. The leakage protection device can increase the clamping force on the electric core, thereby reducing the risk of the electric core deviating, and further enhancing the stability of the electrical connection between the electric core and the leakage protection piece.

Description

Technical Field

[0001] This application relates to the field of leakage current protection technology, and in particular to a leakage current protection device. Background Technology

[0002] Inside the electrical control cabinet of the new energy intelligent steel coil transport vehicle, air conditioners, lighting, and sockets are powered by 220V AC power, while motors, motor fans, and motor brakes are powered by 380V AC power. With the increasing use of electrical equipment, leakage problems are becoming increasingly prominent. Leakage not only leads to equipment failure, affecting production continuity and causing huge economic losses, but it can also cause electric shock accidents, endangering the lives of operators.

[0003] When existing leakage current protection devices are electrically connected to related cables, the battery cells of the cable are usually clamped by two spring clips. However, such clamping force is insufficient, which causes the battery cells to easily shift, thus preventing the leakage current protection device from working properly. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a leakage current protection device that can increase the clamping force on the battery cell, thereby reducing the risk of battery cell displacement and enhancing the stability of the electrical connection between the battery cell and the leakage current protection device.

[0005] A leakage current protection device according to an embodiment of this application includes: a leakage current protection cabinet for laying cables; a leakage current protection component located in the leakage current protection cabinet; and a cable connector connected to the leakage current protection component and including a first mounting plate and a second mounting plate spaced apart. The first mounting plate is provided with a current connection pad, and the second mounting plate is provided with an insulating screw. One end of the insulating screw is disposed opposite to the current connection pad, and the end of the insulating screw facing the current connection pad is provided with an abutment block. The insulating screw is adapted to move in the distribution direction of the first mounting plate and the second mounting plate, and the insulating screw is threadedly engaged with the second mounting plate to clamp or release the battery core of the cable with the current connection pad.

[0006] According to the leakage current protection device of this application embodiment, the distance between the insulating screw and the current connection pad can be adjusted by rotating the insulating screw so that the insulating screw moves relative to the second mounting plate in the distribution direction of the first and second mounting plates. Thus, when it is necessary to clamp the battery cell of the cable, the insulating screw can be rotated so that the insulating screw moves relative to the second mounting plate in the distribution direction of the first and second mounting plates toward the current connection pad, thereby enabling the insulating screw and the current connection pad to clamp the battery cell. This increases the clamping force on the battery cell compared to the direct clamping method of two springs, thereby reducing the risk of battery cell displacement and enhancing the stability of the electrical connection between the battery cell and the leakage current protection device.

[0007] According to some embodiments of the leakage protection device of this application, the second mounting plate is provided with a movable groove that opens toward the direction of the current connection pad, and the insulating screw slides in cooperation with the movable groove in the distribution direction of the first mounting plate and the second mounting plate.

[0008] The leakage current protection device according to some embodiments of this application further includes: a slider, the slider being disposed at one end of the insulating screw facing the current connection pad, the slider being slidably engaged with the movable groove in the distribution direction of the first mounting plate and the second mounting plate, and the abutment block being disposed at one end of the slider facing the current connection pad.

[0009] According to some embodiments of the leakage protection device of this application, the slider has a plurality of pressure protrusions at one end facing the current connection pad.

[0010] According to some embodiments of the leakage protection device of this application, the current connection pad is provided with a plurality of pressing protrusions at one end facing the abutment block.

[0011] The leakage current protection device according to some embodiments of this application further includes: a clamping component, the clamping component being disposed inside the leakage current protection cabinet and spaced apart from the leakage current protection element, the clamping component being used to clamp or release the cable.

[0012] According to some embodiments of the present application, the leakage current protection device includes a clamping assembly comprising a base, a first clamping plate, a second clamping plate, and a driving member. The base is connected to the leakage current protection cabinet. The first clamping plate and the second clamping plate are both disposed on the base and are disposed opposite to each other. The driving member is used to drive the first clamping plate to move toward or away from the second clamping plate.

[0013] According to some embodiments of the leakage protection device of this application, the first clamping plate includes a first arc-shaped sub-plate and a second arc-shaped sub-plate. The first arc-shaped sub-plate is fixedly connected to the base, and the second arc-shaped sub-plate is disposed on the side of the first arc-shaped sub-plate facing the second clamping plate and is connected to the first arc-shaped sub-plate through a first elastic member.

[0014] According to some embodiments of the leakage protection device of this application, the first arc-shaped sub-plate is provided with a connecting rod, the driving member is disposed on the base, and the output shaft of the driving member passes through the connecting rod; wherein, the connecting rod and the base are circumferentially limited and engaged with the output shaft, and the output shaft is threadedly engaged with the connecting rod.

[0015] According to some embodiments of the leakage protection device of this application, the second clamping plate includes a third arc-shaped sub-plate and a fourth arc-shaped sub-plate. The third arc-shaped sub-plate is fixedly connected to the base, and the fourth arc-shaped sub-plate is disposed on the side of the third arc-shaped sub-plate facing the second arc-shaped sub-plate and is connected to the third arc-shaped sub-plate through a second elastic member.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 Schematic diagram of leakage protection device for some embodiments provided in this application Figure 1 ;

[0019] Figure 2 Schematic diagram of the cabinet of the leakage current protection device provided in some embodiments of this application Figure 2 ;

[0020] Figure 3 Schematic diagrams of cable connectors provided for some embodiments of this application;

[0021] Figure 4 A schematic diagram of the clamping components provided in some embodiments of this application;

[0022] Figure 5 Some embodiments provided in this application Figure 4 Enlarged view of point A in the middle.

[0023] Figure label:

[0024] 100 leakage current protection device; 200 cable; 201 battery cell;

[0025] 10. Residual current protection cabinet; 11. Cabinet body; 12. Door; 13. Observation window; 14. Handle.

[0026] 20 leakage current protection devices;

[0027] Cable connector 30; first mounting plate 31, second mounting plate 32, abutment block 33, pressing protrusion 331, insulating screw 34, current connection pad 35, movable groove 36, slider 37.

[0028] Clamping assembly 40, base 41, first clamping plate 42, first arc-shaped sub-plate 421, second arc-shaped sub-plate 422, first elastic element 423;

[0029] Second clamping plate 43, third arc-shaped sub-plate 431, fourth arc-shaped sub-plate 432, second elastic element 433.

[0030] Drive component 44, output shaft 441, connecting rod 50; storage box 60. Detailed Implementation

[0031] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0032] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0033] The following is in conjunction with the appendix Figure 1-5 This application describes a leakage current protection device 100 according to an embodiment of the present application.

[0034] The leakage current protection device 100 according to the embodiments of this application includes: leakage current protection cabinet 10, leakage current protection component 20 and cable connector 30.

[0035] like Figure 1 As shown, the residual current protection cabinet 10 is used to lay cables 200. The residual current protection cabinet 10 may include a cabinet body 11 and a door body 12. The door body 12 is used to open or close the cabinet body 11. The door body 12 may be provided with a handle 14 for easy pulling and an observation window 13 for observing the internal situation of the cabinet body 11.

[0036] like Figure 2 As shown, the leakage protection device 20 is located inside the cabinet 11 of the leakage protection cabinet 10. The leakage protection device 20 can be a leakage protection device, commonly known as a leakage switch, which is a protective electrical appliance used to prevent electric shock and electrical fire when a short circuit to ground occurs due to damage to the insulation of the circuit or electrical appliance.

[0037] The leakage current protection device 20 is connected in series in the circuit formed by the cable 200, and the leakage current protection device 20 can be a leakage current protection relay, leakage current protection switch or other types of protective electrical appliances, which are not limited here.

[0038] The cable connector 30 is connected to the leakage current protection device 20 and is used to electrically connect the leakage current protection device 20 to the battery core 201 of the cable 200. It is understood that the cable 200 typically includes an outer enamel layer and an inner battery core 201. The battery core 201 is used for conducting electricity, and the outer enamel layer covers the outside of the battery core 201 to achieve insulation of the battery core 201. Therefore, when the cable 200 is electrically connected to the leakage current protection device 20, it is necessary to peel off the outer enamel layer at one end of the cable 200 to allow the inner battery core 201 to flow out.

[0039] like Figure 3 As shown, the cable connector 30 includes a first mounting plate 31 and a second mounting plate 32 spaced apart. The first mounting plate 31 is provided with a current connection pad 35, and the second mounting plate 32 is provided with an insulating screw 34. One end of the insulating screw 34 is disposed opposite to the current connection pad 35, and the end of the insulating screw 34 facing the current connection pad 35 is provided with an abutment block 33. The insulating screw 34 is adapted to move in the distribution direction of the first mounting plate 31 and the second mounting plate 32, and the insulating screw 34 is threadedly engaged with the second mounting plate 32 so that the insulating screw 34 clamps or releases the battery core 201 of the cable 200 with the current connection pad 35.

[0040] It is understandable that the insulating screw 34 is an insulating structure, for example, the insulating screw 34 is a screw made of insulating material or the outer surface of the insulating screw 34 is insulated. The current connection pad 35 is electrically connected to the leakage protection component 20 and is used to electrically connect to the battery cell 201.

[0041] Since the second mounting plate 32 is fixed relative to the leakage protection component 20, that is, the position of the second mounting plate 32 does not move, while the insulating screw 34 passes through the second mounting plate 32 and is threadedly engaged with the second mounting plate 32, the insulating screw 34 can rotate relative to the second mounting plate 32 to change the distance between the insulating screw 34 and the current connection pad 35.

[0042] Thus, when it is necessary to clamp the battery cell 201 of the cable 200, the insulating screw 34 can be rotated to move relative to the second mounting plate 32 in the distribution direction of the first mounting plate 31 and the second mounting plate 32 toward the current connection pad 35, until the insulating screw 34 and the current connection pad 35 can clamp the battery cell 201. In this way, compared with the method of directly clamping with two springs, the clamping force on the battery cell 201 can be increased, thereby reducing the risk of the battery cell 201 shifting, and thus enhancing the stability of the electrical connection between the battery cell 201 and the leakage protection device 20.

[0043] Alternatively, when it is necessary to place or loosen the battery cell 201 of the cable 200, the insulating screw 34 can be rotated so that the insulating screw 34 moves away from the current connection pad 35 relative to the second mounting plate 32 in the distribution direction of the first mounting plate 31 and the second mounting plate 32, until the insulating screw 34 and the current connection pad 35 can loosen the battery cell 201 or the distance between them is large, thereby facilitating the placement or removal of the battery cell 201.

[0044] According to the leakage current protection device 100 of this application embodiment, the distance between the insulating screw 34 and the current connection pad 35 can be adjusted by rotating the insulating screw 34 relative to the second mounting plate 32 in the distribution direction of the first mounting plate 31 and the second mounting plate 32. Thus, when it is necessary to clamp the battery cell 201 of the cable 200, the insulating screw 34 can be rotated to move relative to the second mounting plate 32 in the distribution direction of the first mounting plate 31 and the second mounting plate 32 towards the current connection pad 35, thereby enabling the insulating screw 34 and the current connection pad 35 to clamp the battery cell 201. This increases the clamping force on the battery cell 201 compared to a direct clamping method using two springs, thereby reducing the risk of the battery cell 201 shifting and enhancing the stability of the electrical connection between the battery cell 201 and the leakage current protection device 20.

[0045] In some embodiments, the second mounting plate 32 is provided with a movable groove 36 that opens toward the current connection pad 35, and the insulating screw 34 slides in the movable groove 36 in the distribution direction of the first mounting plate 31 and the second mounting plate 32. Thus, the movable groove 36 allows for more stable movement of the insulating screw 34 relative to the second mounting plate 32 in the distribution direction of the first mounting plate 31 and the second mounting plate 32, thereby improving the movement stability of the insulating screw 34.

[0046] In some embodiments, the leakage protection device 100 further includes a storage box 60, which is located inside the leakage protection cabinet 10 and near the cable 200 inlet or cable 200 outlet of the leakage protection cabinet 10, so as to better organize the cable 200, thereby making the cable 200 neater and reducing the difficulty of cable routing and maintenance.

[0047] In some embodiments, the leakage protection device 100 further includes: a slider 37, which is disposed at one end of the insulating screw 34 facing the current connection pad 35. In the distribution direction of the first mounting plate 31 and the second mounting plate 32, the slider 37 slides in cooperation with the movable groove 36, and the abutment block 33 is disposed at one end of the slider 37 facing the current connection pad 35.

[0048] In some embodiments, the slider 37 is provided with a plurality of abutting protrusions 331 at one end facing the current connection pad 35. In this way, the plurality of abutting protrusions 331 can abut against the battery cell 201, thereby enhancing the clamping effect of the slider 37 and the current connection pad 35 on the battery cell 201.

[0049] In some embodiments, the current connection pad 35 is provided with a plurality of pressing protrusions 331 at one end facing the abutment block 33.

[0050] In this way, multiple pressing protrusions 331 can abut against the battery cell 201, thereby enhancing the clamping effect of the slider 37 and the current connection pad 35 on the battery cell 201.

[0051] In some embodiments, the leakage current protection device 100 further includes a clamping component 40, which is disposed inside the leakage current protection cabinet 10 and spaced apart from the leakage current protection element 20. The clamping component 40 is used to clamp or release the cable 200. In this way, the clamping component 40 can clamp and limit the cable 200 inside the leakage current protection cabinet 10, ensuring the stability of the cable 200 routing and reducing the risk of cable 200 shaking.

[0052] In some embodiments, the clamping assembly 40 includes a base 41, a first clamping plate 42, a second clamping plate 43, and a drive member 44. The base 41 is connected to the leakage protection cabinet 10. The first clamping plate 42 and the second clamping plate 43 are both disposed on the base 41 and are disposed opposite to each other. The drive member 44 is used to drive the first clamping plate 42 to move toward or away from the second clamping plate 43.

[0053] In some embodiments, the first clamping plate 42 includes a first arc-shaped sub-plate 421 and a second arc-shaped sub-plate 422. The first arc-shaped sub-plate 421 is fixedly connected to the base 41, and the second arc-shaped sub-plate 422 is disposed on the side of the first arc-shaped sub-plate 421 facing the second clamping plate 43 and is connected to the first arc-shaped sub-plate 421 through a first elastic member 423.

[0054] It is understandable that the center of the first arc-shaped sub-plate 421 and the center of the second arc-shaped sub-plate 422 are located on the same side, and the arc shape of the first arc-shaped sub-plate 421 and the second arc-shaped sub-plate 422 are designed to conform to the shape of the outer peripheral wall of the cable 200. This facilitates increasing the contact area between the second arc-shaped sub-plate 422 and the cable 200, thereby enhancing the clamping effect on the cable 200.

[0055] In particular, the second arc-shaped sub-plate 422 is connected to the first arc-shaped sub-plate 421 via the first elastic member 423. In this way, when clamping the cable 200, the first elastic member 423 can apply an elastic force to the second arc-shaped sub-plate 422 in the direction closer to the cable 200, thereby enhancing the clamping effect on the cable 200. Alternatively, when the size of the cable 200 is large, the second arc-shaped sub-plate 422 can be squeezed to deform the first elastic member 423, thereby adaptively adjusting the distance between the second clamping plate 43 and the second arc-shaped sub-plate 422 while the position of the second clamping plate 43 remains unchanged, so as to better clamp larger size cables 200.

[0056] In some embodiments, the first arc-shaped subplate 421 is provided with a connecting rod 50, the driving member 44 is provided on the base 41, and the output shaft 441 of the driving member 44 passes through the connecting rod 50; wherein, the connecting rod 50 and the base 41 are circumferentially limited and engaged, and the output shaft 441 and the connecting rod 50 are threadedly engaged.

[0057] Thus, when the output shaft 441 of the drive component 44 rotates, the connecting rod 50 and the base 41 are in circumferential limiting engagement with the output shaft 441, and the connecting rod 50 is in axial sliding engagement with the base 41 on the output shaft 441. Furthermore, the output shaft 441 and the connecting rod 50 are in threaded engagement. As a result, the rotation of the output shaft 441 will drive the connecting rod 50 to move on the axial direction of the output shaft 441, thereby driving the first arc-shaped sub-plate 421 to move on the axial direction of the output shaft 441. This will adjust the distance between the first clamping plate 42 and the second clamping plate 43, thereby enabling the first clamping plate 42 and the second clamping plate 43 to clamp or release the cable 200.

[0058] In some embodiments, the second clamping plate 43 includes a third arc-shaped sub-plate 431 and a fourth arc-shaped sub-plate 432. The third arc-shaped sub-plate 431 is fixedly connected to the base 41, and the fourth arc-shaped sub-plate 432 is disposed on the side of the third arc-shaped sub-plate 431 facing the second arc-shaped sub-plate 422 and is connected to the third arc-shaped sub-plate 431 through a second elastic member 433.

[0059] It is understandable that the center of the third arc-shaped sub-plate 431 and the center of the fourth arc-shaped sub-plate 432 are located on the same side, and the arc shape of the third arc-shaped sub-plate 431 and the fourth arc-shaped sub-plate 432 are designed to conform to the shape of the outer peripheral wall of the cable 200. This facilitates increasing the contact area between the fourth arc-shaped sub-plate 432 and the cable 200, thereby enhancing the clamping effect on the cable 200.

[0060] In particular, the fourth arc-shaped sub-plate 432 is connected to the third arc-shaped sub-plate 431 via the second elastic member 433. In this way, when clamping the cable 200, the second elastic member 433 can apply an elastic force to the fourth arc-shaped sub-plate 432 in the direction closer to the cable 200, thereby enhancing the clamping effect on the cable 200. Alternatively, when the size of the cable 200 is large, the fourth arc-shaped sub-plate 432 can be squeezed to deform the second elastic member 433, thereby adaptively adjusting the distance between the fourth clamping plate and the fourth arc-shaped sub-plate 432 while the position of the fourth clamping plate remains unchanged, so as to better clamp larger size cables 200.

[0061] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and 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, and therefore should not be construed as a limitation of this application.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0063] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0064] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A leakage current protection device (100), characterized in that, include: A residual current device (RCD) cabinet (10) is used for laying cables (200); A leakage current protection device (20) is located in a leakage current protection cabinet (10); A cable connector (30) is connected to the leakage protection device (20) and includes a first mounting plate (31) and a second mounting plate (32) spaced apart. The first mounting plate (31) is provided with a current connection pad, and the second mounting plate (32) is provided with an insulating screw (34). One end of the insulating screw (34) is disposed opposite to the current connection pad, and the end of the insulating screw (34) facing the current connection pad is provided with an abutment block (33). The insulating screw (34) is adapted to move in the distribution direction of the first mounting plate (31) and the second mounting plate (32), and the insulating screw (34) is threadedly engaged with the second mounting plate (32) so that the insulating screw (34) clamps or releases the battery core (201) of the cable (200) with the current connection pad (35).

2. The leakage current protection device (100) according to claim 1, characterized in that, The second mounting plate (32) is provided with a movable groove (36) that opens toward the current connection pad (35), and the insulating screw (34) slides in cooperation with the movable groove (36) in the distribution direction of the first mounting plate (31) and the second mounting plate (32).

3. The leakage current protection device (100) according to claim 2, characterized in that, Also includes: A slider (37) is provided at one end of the insulating screw (34) facing the current connection pad. In the distribution direction of the first mounting plate (31) and the second mounting plate (32), the slider (37) is slidably engaged with the movable groove (36). The abutment block (33) is provided at one end of the slider (37) facing the current connection pad.

4. The leakage current protection device (100) according to claim 3, characterized in that, The slider (37) has a plurality of pressure protrusions (331) at one end facing the current connection pad.

5. The leakage current protection device (100) according to claim 1, characterized in that, The current connection pad has a plurality of pressing protrusions (331) at one end facing the abutment block (33).

6. The leakage current protection device (100) according to any one of claims 1-5, characterized in that, Also includes: A clamping assembly (40) is disposed inside the leakage protection cabinet (10) and spaced apart from the leakage protection component (20). The clamping assembly (40) is used to clamp or release the cable (200).

7. The leakage current protection device (100) according to claim 6, characterized in that, The clamping assembly (40) includes a base (41), a first clamping plate (42), a second clamping plate (43), and a driving member (44). The base (41) is connected to the leakage protection cabinet (10). The first clamping plate (42) and the second clamping plate (43) are both disposed on the base (41) and are disposed opposite to each other. The driving member (44) is used to drive the first clamping plate (42) to move toward or away from the second clamping plate (43).

8. The leakage current protection device (100) according to claim 7, characterized in that, The first clamping plate (42) includes a first arc-shaped sub-plate (421) and a second arc-shaped sub-plate (422). The first arc-shaped sub-plate (421) is fixedly connected to the base (41). The second arc-shaped sub-plate (422) is disposed on the side of the first arc-shaped sub-plate (421) facing the second clamping plate (43) and is connected to the first arc-shaped sub-plate (421) through a first elastic member (423).

9. The leakage current protection device (100) according to claim 8, characterized in that, The first arc-shaped subplate (421) is provided with a connecting rod (50), the driving member (44) is provided on the base (41), and the output shaft (441) of the driving member (44) passes through the connecting rod (50); The connecting rod (50) and the base (41) are circumferentially limited to the output shaft (441), and the output shaft (441) and the connecting rod (50) are threaded together.

10. The leakage current protection device (100) according to claim 8, characterized in that, The second clamping plate (43) includes a third arc-shaped sub-plate (431) and a fourth arc-shaped sub-plate (432). The third arc-shaped sub-plate (431) is fixedly connected to the base (41). The fourth arc-shaped sub-plate (432) is disposed on the side of the third arc-shaped sub-plate (431) facing the second arc-shaped sub-plate (422) and is connected to the third arc-shaped sub-plate (431) through a second elastic member (433).

Images