Flexible main busbar low-voltage switch cabinet and use method thereof

Abstract

The invention discloses a flexible main busbar low-voltage switch cabinet and a use method thereof, and belongs to the field of low-voltage switch cabinets, the flexible main busbar low-voltage switch cabinet comprises a cabinet body, the cabinet body is provided with a first installation area and a second installation area, the first installation area is located outside the cabinet body, and the second installation area is located in the cabinet body; the main busbar is arranged in the first mounting area; the displacement device comprises a base, a longitudinal displacement mechanism and a transverse displacement mechanism, the base is movably connected with the cabinet body through the longitudinal displacement mechanism, and the base is movably connected with the main busbar through the transverse displacement mechanism; and the copper bar group is arranged in the second mounting area, and the copper bar group is electrically connected with the main busbar. The main busbar is innovatively designed into a movable assembly, the position of the main busbar relative to the cabinet body is changed through the longitudinal displacement mechanism and / or the transverse displacement mechanism according to requirements so as to be consistent with the main busbar of the on-site low-voltage cabinet, on-site transformation is facilitated, the installation time is short, the change of the copper bar and the main busbar is small, and the cost is low. The product reliability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of low-voltage switchgear, and particularly relates to a flexible main busbar low-voltage switchgear and its usage method. Background Art

[0002] Low-voltage switchgear is a common electrical device. In the prior art, as Figure 1 shown, the main busbar is integrally fixed with the switchgear and the position of the main busbar cannot be adjusted. Due to inaccurate on-site measurement, and the position and size parameters of the main busbars on low-voltage switchgears of different manufacturers, different brands, and different models will vary, and it is not a standard part design, which will cause problems when connecting the main busbar of a new cabinet to that of an old cabinet, and there will be a large-scale copper bar modification during installation.

[0003] The current practice is to carry out on-site modification and on-site fabrication of the main busbar and copper bars according to the actual situation. However, this not only results in a long installation time and difficult modification, but also the reliability of the product will deteriorate accordingly. Summary of the Invention

[0004] In order to overcome the above technical defects, the present invention provides a flexible main busbar low-voltage switchgear and its usage method, aiming to solve the technical problem of difficult on-site modification caused by the integration of the main busbar and the switchgear.

[0005] The present invention is implemented according to the following technical solutions: The present invention provides a flexible main busbar low-voltage switchgear, which includes: A cabinet body, which is provided with a first installation area and a second installation area, the first installation area is located outside the cabinet body, and the second installation area is located inside the cabinet body; A main busbar, which is arranged in the first installation area; A displacement device, which includes a base, a longitudinal displacement mechanism, and a transverse displacement mechanism. Among them, the base is movably connected to the cabinet body through the longitudinal displacement mechanism, and the base is movably connected to the main busbar through the transverse displacement mechanism to change the position of the main busbar relative to the cabinet body in the longitudinal direction and / or the transverse direction; A copper bar group, which is arranged in the second installation area, the copper bar group is electrically connected to the main busbar, and the size of the copper bar group changes with the change of the position of the main busbar.

[0006] This application abandons the integrated design method of the main busbar and the fixed switch cabinet in the prior art, and innovatively designs the main busbar into a movable component. According to requirements, this application changes the position of the main busbar relative to the cabinet body in the longitudinal direction through the longitudinal displacement mechanism, and / or changes the position of the main busbar relative to the cabinet body in the transverse direction through the transverse displacement mechanism, so as to be consistent with the main busbar of the on-site low-voltage cabinet, which is convenient for on-site transformation, and has a short installation time, small changes in copper bars and main busbars, and improves product reliability.

[0007] In one embodiment, the longitudinal displacement mechanism includes a longitudinal bolt and a positioning nut. The head of the longitudinal bolt is arranged on the base; the tail of the longitudinal bolt passes through the installation hole of the cabinet body and is in threaded cooperation with the positioning nut.

[0008] In one embodiment, the transverse displacement mechanism includes a fixed guide rail and a movable guide rail slidably matched with the fixed guide rail. The fixed guide rail is fixed on the base, and the movable guide rail is fixed on the main busbar.

[0009] In one embodiment, the transverse displacement mechanism further includes a connecting piece, a screw rod, a screw rod support seat and a driving mechanism; The screw rod support seat is fixed on the base; The screw rod is rotatably connected with the screw rod support seat; the length direction of the screw rod is consistent with the sliding direction of the movable guide rail, and the position of the screw rod relative to the base remains unchanged; The driving mechanism is drivingly connected with one end of the screw rod; The connecting piece is connected with the movable guide rail, and the connecting piece is in threaded cooperation with the screw rod.

[0010] In one embodiment, the copper bar group includes a connecting bar, a conversion bar and a telescopic bar assembly; One end of the connecting bar extends from the second installation area to the first installation area and is connected with the main busbar, and the other end of the connecting bar is connected with the conversion bar; One end of the telescopic bar assembly is connected with the conversion bar through a first displacement adjusting member; The first displacement adjusting member includes a first oblong hole and a first locking member. The first oblong hole is arranged on the conversion bar and / or the telescopic bar assembly, and the first locking member is locked in the first oblong hole.

[0011] In one embodiment, it further includes: The telescopic bar assembly includes a first end bar, a second end bar and a telescopic bar. One end of the telescopic bar is connected with the first end bar through a second displacement adjusting member, and the other end of the telescopic bar is connected with the second end bar through a second displacement adjusting member; The second displacement adjusting member includes a second oblong hole and a second locking member. The second oblong hole is provided on the first end row and / or the second end row and / or the telescopic row, and the second locking member is locked in the second oblong hole.

[0012] In one embodiment, the copper busbar group further includes an extension row, and one end of the extension row is connected to the other end of the telescopic row assembly through a third displacement adjusting member; The third displacement adjusting member includes a third oblong hole and a third locking member. The third oblong hole is provided on the extension row and / or the telescopic row assembly, and the third locking member is locked in the third oblong hole.

[0013] In one embodiment, the flexible main busbar low-voltage switchgear further includes a protective cover, which is connected to the cabinet body and covers the main busbar and the displacement device; an opening for exposing the main busbar is provided on the protective cover.

[0014] The present application also provides a method for using the flexible main busbar low-voltage switchgear, which applies the flexible main busbar low-voltage switchgear as described above, and includes: S1: According to the position of the main busbar of the on-site low-voltage switchgear, adjust the position of the main busbar of the flexible main busbar low-voltage switchgear in the longitudinal direction and / or the transverse direction, and adjust the size of the copper busbar group according to the position of the main busbar of the flexible main busbar low-voltage switchgear; S2: Fix the positions of the copper busbar group and the main busbar of the flexible main busbar low-voltage switchgear.

[0015] In one embodiment, the S1 specifically includes: S11: Obtain the longitudinal position and the transverse position of the main busbar of the on-site low-voltage switchgear; S12: According to the longitudinal position of the main busbar of the on-site low-voltage switchgear, operate the longitudinal displacement mechanism to adjust the longitudinal position of the main busbar of the flexible main busbar low-voltage switchgear; S13: According to the transverse position of the main busbar of the on-site low-voltage switchgear, operate the transverse displacement mechanism to adjust the transverse position of the main busbar of the flexible main busbar low-voltage switchgear; S14: According to the position of the main busbar of the flexible main busbar low-voltage switchgear, adjust the size of the copper busbar group.

[0016] For better understanding and implementation, the present invention will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0017] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings, where: Figure 1Schematic diagram of a low-voltage switchgear cabinet in the prior art; Figure 2 Side view of the flexible main busbar low-voltage switchgear cabinet of the present invention; Figure 3 Front view of the flexible main busbar low-voltage switchgear cabinet of the present invention; Figure 4 Top view of the main busbar and the displacement device of the present invention; Figure 5 Cross-sectional view of the main busbar and the displacement device of the present invention; Figure 6 Side view of the main busbar and the displacement device of the present invention.

[0018] Explanation of reference numerals: 10 Cabinet body, 101 First installation area, 102 Second installation area, 20 Main busbar, 310 Base, 321 Longitudinal bolt, 322 Positioning nut, 331 Fixed guide rail, 332 Movable guide rail, 333 Connecting member, 334 Screw rod, 335 Screw rod support seat, 336 Rocker, 40 Copper busbar group, 410 Connecting row, 420 Conversion row, 430 First end row, 440 Second end row, 450 Telescopic row, 460 Extension row, 50 Protective cover, 60 Main busbar of the old cabinet. Detailed implementation manners

[0019] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0020] In order to better elaborate the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope protected by the embodiments of the present application.

[0022] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0023] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0024] In addition, in the description of the present application, unless otherwise specified, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0025] Combined with Figures 2 to 6 As shown, the present application provides a flexible main busbar low-voltage switchgear cabinet, which includes: a cabinet body 10, on which a first installation area 101 and a second installation area 102 are provided, the first installation area 101 is located outside the cabinet body 10, and the second installation area 102 is located inside the cabinet body 10; a main busbar 20, which is arranged in the first installation area 101; a displacement device, which includes a base 310, a longitudinal displacement mechanism and a transverse displacement mechanism, wherein the base 310 is movably connected to the cabinet body 10 through the longitudinal displacement mechanism, and the base 310 is movably connected to the main busbar 20 through the transverse displacement mechanism to change the position of the main busbar 20 relative to the cabinet body 10 in the longitudinal direction and / or the transverse direction; a copper busbar group 40, which is arranged in the second installation area 102, the copper busbar group 40 is electrically connected to the main busbar 20, and the size of the copper busbar group 40 changes with the change of the position of the main busbar 20.

[0026] Specifically, the first installation area 101 on the cabinet body 10 of the present application is located outside the cabinet body 10, and can be the top of the cabinet body 10 or the side of the cabinet body 10, etc. Taking this embodiment as an example, preferably, the first installation area 101 is the top of the cabinet body 10. When the flexible main busbar low-voltage switchgear cabinet of the present application (for the convenience of distinction and understanding, hereinafter referred to as the new cabinet) is placed on site and connected to the low-voltage switchgear cabinet on site (for the convenience of distinction and understanding, hereinafter referred to as the old cabinet); for the convenience of understanding, in this embodiment, the longitudinal position of the main busbar 20 refers to the height position of the main busbar 20, and the transverse position of the main busbar 20 refers to the front-back position of the main busbar 20.

[0027] Since the positions and size parameters of the main busbars 20 on low-voltage switchgear cabinets of different manufacturers, brands, and models will vary and are not standard part designs. In this application, according to the position of the main busbar 60 of the old cabinet, by operating the longitudinal displacement mechanism, the position of the main busbar 20 relative to the cabinet body 10 in the longitudinal direction is changed, and / or according to the position of the main busbar 60 of the old cabinet, by operating the transverse displacement mechanism, the position of the main busbar 20 relative to the cabinet body 10 in the transverse direction is changed, so as to be consistent with the main busbar 60 of the on-site old cabinet, facilitating on-site renovation, and having a short installation time, small modifications to the copper bars and the main busbar 20, and improving the product reliability. It should be noted that, in order to facilitate connection with the copper bar group 40 and also facilitate the movement of the copper bar group 40 during subsequent position adjustment, the top of the cabinet is grooved corresponding to the position of the copper bar group 40 to avoid affecting the movement of the copper bar group 40.

[0028] In this embodiment, the longitudinal displacement mechanism includes a longitudinal bolt 321 and a positioning nut 322. The head of the longitudinal bolt 321 is arranged on the base 310; the tail of the longitudinal bolt 321 passes through the mounting hole of the cabinet body 10 and is in threaded cooperation with the positioning nut 322. Specifically, the top of the cabinet body 10 of the low-voltage switchgear cabinet is provided with a mounting hole. The tail of the longitudinal bolt 321 passes through the mounting hole and is in threaded cooperation with the positioning nut 322. By controlling the distance that the positioning nut 322 is screwed into the longitudinal bolt 321, the height of the longitudinal bolt 321 protruding from the top of the cabinet is changed, thereby changing the longitudinal position of the main busbar 20, so that the height of the main busbar 20 of the new cabinet is consistent with the height of the main busbar 60 of the old cabinet.

[0029] Further, through holes are provided at positions corresponding to the longitudinal bolts 321 on the base 310; the longitudinal adjustment device further includes a limit nut; the tail of the longitudinal bolt 321 passes through the through holes and is tightly screwed with the limit nut, so that the longitudinal bolt 321 is detachable relative to the base 310; when the height of the longitudinal bolt 321 is insufficient, a longer longitudinal bolt 321 can be replaced to increase the adjustable height to meet the main busbar 20 of special specifications of the old cabinet. In other embodiments, the longitudinal bolt 321 can be fixed to the base 310 by welding.

[0030] Regarding the longitudinal displacement mechanism, in other embodiments, the longitudinal displacement mechanism can also use a method of connecting a lifting motor to the base 310, or a lifting platform or other methods to change the longitudinal position of the main busbar 20.

[0031] In this embodiment, the lateral displacement mechanism includes a fixed guide rail 331 and a movable guide rail 332 that is slidably engaged with the fixed guide rail 331. The fixed guide rail 331 is fixed on the base 310, and the movable guide rail 332 is fixed on the main busbar 20. Specifically, in this embodiment, by operating the movable guide rail 332, the lateral position of the movable guide rail 332 relative to the fixed guide rail 331 is changed, thereby changing the lateral position of the main busbar 20 so as to be consistent with the main busbar 60 of the old cabinet and make an electrical connection, which facilitates on-site transformation.

[0032] In order to better operate the sliding of the movable guide rail 332, in this embodiment, the lateral displacement mechanism further includes a connecting member 333, a screw rod 334, a screw rod support seat 335, and a driving mechanism. The screw rod support seat 335 is fixed on the base 310. The screw rod 334 is rotatably connected to the screw rod support seat 335. The length direction of the screw rod 334 is consistent with the sliding direction of the movable guide rail 332, and the position of the screw rod 334 relative to the base 310 remains unchanged. The driving mechanism is drivingly connected to one end of the screw rod 334. The connecting member 333 is connected to the movable guide rail 332, and the connecting member 333 is in threaded engagement with the screw rod 334. Specifically, the driving mechanism drives the screw rod 334 to rotate. Since the position of the screw rod 334 relative to the base 310 is unchanged, the connecting rod can drive the movable guide rail 332 to slide synchronously under the rotation of the screw rod 334, thereby changing the lateral position of the movable guide rail 332 relative to the fixed guide rail 331, and then changing the position of the main busbar 20. It should be noted that the threaded engagement between the screw rod 334 and the connecting rod can effectively increase the movement accuracy during the lateral movement of the main busbar 20.

[0033] Furthermore, a nut is provided on the connecting member 333 for threaded engagement with the screw rod 334. A bearing is provided on the screw rod support seat 335 for connecting with the screw rod 334 to fix the screw rod 334 without affecting its rotation.

[0034] In this embodiment, the driving mechanism can adopt a rocker 336, and a person operates the rocker 336 to drive the screw rod 334 to rotate. Preferably, the rocker 336 and the screw rod 334 are detachably arranged.

[0035] In this embodiment, the number of the fixed guide rails 331 and the movable guide rails 332 is two each. One fixed guide rail 331 corresponds to one movable guide rail 332 to form a set of guide rails; the connecting member 333, the screw 334, and the screw support base 335 are located between the two sets of guide rails. In this embodiment, the main busbar 20 is supported by the two sets of guide rails to improve the stability of the movement of the main busbar 20.

[0036] In this embodiment, the movable guide rail 332 is connected and fixed to the main busbar 20 through a main busbar clamp.

[0037] In this embodiment, the copper busbar group 40 includes a connecting busbar 410, a conversion busbar 420, and a telescopic busbar assembly; one end of the connecting busbar 410 extends from the second installation area 102 to the first installation area 101 and is connected to the main busbar 20, and the other end of the connecting busbar 410 is connected to the conversion busbar 420; one end of the telescopic busbar assembly is connected to the conversion busbar 420 through a first displacement adjusting member; the first displacement adjusting member includes a first oblong hole and a first locking member, the first oblong hole is provided on the conversion busbar 420 and / or the telescopic busbar assembly, and the first locking member is locked in the first oblong hole.

[0038] Specifically, the first oblong hole is provided on the conversion busbar 420 and the telescopic busbar 450, and the length direction of the first oblong hole is consistent with the transverse direction of the main busbar 20. When the main busbar 20 moves transversely under the action of the transverse movement mechanism, the connecting busbar 410 and the conversion busbar 420 will also move transversely synchronously, while the position of the telescopic busbar assembly remains unchanged. After the main busbar 20 stops moving transversely, the first locking member (bolt and nut) is locked to determine the positions of the connecting busbar 410, the conversion busbar 420, and the telescopic busbar assembly to be unchanged.

[0039] Further, the telescopic busbar assembly includes a first end busbar 430, a second end busbar 440, and a telescopic busbar 450. One end of the telescopic busbar 450 is connected to the first end busbar 430 through a second displacement adjusting member, and the other end of the telescopic busbar 450 is connected to the second end busbar 440 through a second displacement adjusting member; the second displacement adjusting member includes a second oblong hole and a second locking member, the second oblong hole is provided on the first end busbar 430 and / or the second end busbar 440 and / or the telescopic busbar 450, and the second locking member is locked in the second oblong hole.

[0040] Specifically, the second oblong hole is provided on the first end row 430, the second end row 440 and the telescopic row 450. The length direction of the second oblong hole is consistent with the longitudinal direction of the main busbar 20. When the main busbar 20 moves longitudinally under the action of the longitudinal moving mechanism, the first end row 430, the second end row 440 and the telescopic row 450 will move longitudinally accordingly. After the main busbar 20 stops moving longitudinally, the second locking member (bolt and nut) is locked to determine that the positions of the first end row 430, the second end row 440 and the telescopic row 450 remain unchanged.

[0041] If the moved main busbar 20 still cannot be aligned with the main busbar 60 of the old cabinet, further, the copper busbar group 40 further includes an extension row 460. One end of the extension row 460 is connected to the other end of the telescopic row assembly through a third displacement adjusting member; the third displacement adjusting member includes a third oblong hole and a third locking member. The third oblong hole is provided on the extension row 460 and / or the telescopic row assembly, and the third locking member is locked in the third oblong hole.

[0042] Specifically, the third oblong hole is provided on the extension row 460 and the telescopic row assembly. The length direction of the third oblong hole is consistent with the transverse direction of the main busbar 20. When the main busbar 20 moves longitudinally under the action of the transverse moving mechanism, since the other end of the extension row 460 is fixedly connected to the circuit breaker (that is, the position of the extension row 460 remains unchanged), the connecting row 410, the conversion row 420 and the telescopic row 450 will move transversely accordingly. After the main busbar 20 stops moving transversely, the third locking member (bolt and nut) is locked to determine that the positions of the connecting row 410, the conversion row 420, the telescopic row 450 and the extension row 460 remain unchanged.

[0043] In the embodiment, the flexible main busbar low-voltage switch cabinet further includes a protective cover 50. The protective cover 50 is connected to the cabinet body 10 and covers the main busbar 20 and the displacement device to protect the main busbar 20 and the displacement device; an opening for exposing the main busbar 20 is provided on the protective cover 50 so that the main busbar 20 of the new cabinet can be connected to the main busbar 60 of the old cabinet.

[0044] The present application also provides a usage method of a flexible main busbar low-voltage switch cabinet, which applies the flexible main busbar low-voltage switch cabinet as described above, including: S1: Adjust the position of the main busbar 20 of the flexible main busbar low-voltage switch cabinet in the longitudinal direction and / or the transverse direction according to the position of the main busbar 20 of the on-site low-voltage switch cabinet, and adjust the size of the copper busbar group 40 according to the position of the main busbar 20 of the flexible main busbar low-voltage switch cabinet; the S1 specifically includes: S11: Obtain the longitudinal position and lateral position of the main busbar 20 of the on-site low-voltage switchgear cabinet. S12: Operate the longitudinal displacement mechanism according to the longitudinal position of the main busbar 20 of the on-site low-voltage switchgear cabinet, and adjust the longitudinal position of the main busbar 20 of the flexible main busbar low-voltage switchgear cabinet. S13: Operate the lateral displacement mechanism according to the lateral position of the main busbar 20 of the on-site low-voltage switchgear cabinet, and adjust the lateral position of the main busbar 20 of the flexible main busbar low-voltage switchgear cabinet. S14: Adjust the size of the copper bar group according to the position of the main busbar of the flexible main busbar low-voltage switchgear cabinet.

[0045] S2: Fix the position of the copper bar group 40 and the main busbar 20 of the flexible main busbar low-voltage switchgear cabinet.

[0046] Specifically, the flexible main busbar low-voltage switchgear cabinet of the present application is assembled from a cabinet body 10, a main busbar 20, and a protective cover 50. For the convenience of transportation and installation, the low-voltage switchgear cabinet is integrated and shipped from the factory with the three parts in a set position. When in use, first remove the protective cover 50 to expose the main busbar 20; loosen the first locking member between the adapter busbar and the first end row 430, and loosen the bolts of the second locking member of the telescopic busbar assembly. According to the longitudinal position of the main busbar 20 of the on-site low-voltage switchgear cabinet (old cabinet), tighten or loosen the positioning nut 322 to adjust the longitudinal position of the main busbar 20 of the flexible main busbar low-voltage switchgear cabinet (new cabinet). According to the lateral position of the main busbar 20 of the on-site low-voltage switchgear cabinet (old cabinet), rotate the screw 334 forward or backward through the rocker 336 to adjust the lateral position of the main busbar 20 of the flexible main busbar low-voltage switchgear cabinet (new cabinet).

[0047] If the moved main busbar 20 still cannot be aligned with the main busbar 20 of the old cabinet, then loosen the third locking member between the extension busbar 460 and the telescopic busbar 450, and continue to move the main busbar 20 of the new cabinet until the main busbar 20 is finally aligned with the main busbar 20 of the old cabinet. Finally, tighten the first locking member, the second locking member, and the third locking member of the copper bar group 40; and install the protective cover 50.

[0048] According to the disclosure and teaching of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A flexible main busbar low-voltage switchgear, characterized in that: include: A cabinet body, on which a first installation area and a second installation area are provided, wherein the first installation area is located outside the cabinet body, and the second installation area is located inside the cabinet body; A main busbar, which is arranged in the first installation area; A displacement device, comprising a base, a longitudinal displacement mechanism and a transverse displacement mechanism, wherein the base is movably connected to the cabinet through the longitudinal displacement mechanism, and the base is movably connected to the main busbar through the transverse displacement mechanism, so as to change the position of the main busbar relative to the cabinet in the longitudinal direction and / or transverse direction; A copper bar group is arranged in the second installation area, the copper bar group is electrically connected to the main busbar, and the size of the copper bar group changes with the position of the main busbar.

2. The flexible main busbar low-voltage switchgear according to claim 1 is characterized in that: The longitudinal displacement mechanism comprises a longitudinal bolt and a positioning nut. The head of the longitudinal bolt is arranged on the base. The tail of the longitudinal bolt passes through the mounting hole of the cabinet and then cooperates with the positioning nut thread.

3. The flexible main busbar low-voltage switchgear according to claim 1 is characterized in that: The lateral displacement mechanism comprises a fixed guide rail and a movable guide rail slidably matched with the fixed guide rail, the fixed guide rail is fixed on the base, and the movable guide rail is fixed on the main busbar.

4. The flexible main busbar low-voltage switchgear according to claim 3 is characterized in that: The lateral displacement mechanism also includes a connecting piece, a screw, a screw support seat and a driving mechanism; The screw support seat is fixed on the base; The screw is rotatably connected to the screw support seat; the length direction of the screw is consistent with the sliding direction of the movable guide rail; The driving mechanism is drivingly connected to one end of the screw rod; The connecting piece is connected to the movable guide rail, and the connecting piece is threadably matched with the screw rod.

5. The flexible main busbar low-voltage switchgear according to claim 1, characterized in that: The copper bar group includes a connecting bar, a conversion bar and a telescopic bar assembly; One end of the connecting bar extends from the second installation area to the first installation area and is connected to the main bus bar, and the other end of the connecting bar is connected to the conversion bar; One end of the telescopic row assembly is connected to the conversion row through a first displacement adjustment member; The first displacement adjustment member includes a first oblong hole and a first locking member. The first oblong hole is arranged on the conversion row and / or telescopic row assembly, and the first locking member is locked in the first oblong hole.

6. The flexible main busbar low-voltage switchgear according to claim 5 is characterized in that: The telescopic row assembly comprises a first end row, a second end row and a telescopic row, one end of the telescopic row is connected to the first end row via a second displacement adjusting member, and the other end of the telescopic row is connected to the second end row via a second displacement adjusting member; The second displacement adjusting member comprises a second oblong hole and a second locking member, wherein the second oblong hole is arranged on the first end row and / or the second end row and / or the telescopic row, and the second locking member is locked in the second oblong hole.

7. The flexible main busbar low-voltage switchgear according to claim 5 is characterized in that: The copper bar group further comprises an extension bar, one end of which is connected to the other end of the telescopic bar assembly via a third displacement adjusting member; The third displacement adjustment member comprises a third oblong hole and a third locking member. The third oblong hole is arranged on the extension row and / or telescopic row assembly, and the third locking member is locked in the third oblong hole.

8. The flexible main busbar low-voltage switchgear according to claim 1 is characterized in that: The flexible main busbar low-voltage switch cabinet further comprises a protective cover, which is connected to the cabinet body and covers the main busbar and the displacement device; the protective cover is provided with an opening for exposing the main busbar.

9. A method for using a flexible main busbar low-voltage switch cabinet, which uses the flexible main busbar low-voltage switch cabinet as described in any one of claims 1 to 8, characterized in that: include: S1: According to the main busbar position of the on-site low-voltage switchgear, the main busbar position of the flexible main busbar low-voltage switchgear is adjusted in the longitudinal direction and / or the transverse direction, and the size of the copper busbar group is adjusted according to the main busbar position of the flexible main busbar low-voltage switchgear; S2: Fix the position of the copper busbar group and the main busbar of the flexible main busbar low-voltage switch cabinet.

10. The method for using the flexible main busbar low-voltage switchgear according to claim 9 is characterized in that: The S1 specifically includes: S11: Obtain the longitudinal position and transverse position of the main busbar of the on-site low-voltage switchgear; S12: operating the longitudinal displacement mechanism according to the longitudinal position of the main busbar of the on-site low-voltage switch cabinet to adjust the longitudinal position of the main busbar of the flexible main busbar low-voltage switch cabinet; S13: operating the lateral displacement mechanism according to the lateral position of the main busbar of the on-site low-voltage switchgear to adjust the lateral position of the main busbar of the flexible main busbar low-voltage switchgear; S14: adjusting the size of the copper busbar group according to the main busbar position of the flexible main busbar low-voltage switchgear.

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