A flexible main bus low voltage switchgear and method of use thereof

Abstract

This invention discloses a flexible main busbar low-voltage switchgear and its usage method, belonging to the field of low-voltage switchgear. It includes: a cabinet with a first mounting area and a second mounting area, the first mounting area being located outside the cabinet and the second mounting area being located inside the cabinet; a main busbar disposed in the first mounting area; a displacement device including a base, a longitudinal displacement mechanism, and a lateral displacement mechanism, wherein the base is movably connected to the cabinet via the longitudinal displacement mechanism, and the base is movably connected to the main busbar via the lateral displacement mechanism; and a copper busbar assembly disposed in the second mounting area, electrically connected to the main busbar. This application innovatively designs the main busbar as a movable component, allowing its position relative to the cabinet to be changed according to requirements via the longitudinal and / or lateral displacement mechanisms, ensuring consistency with the main busbar of the low-voltage switchgear on site. This facilitates on-site modifications, reduces installation time, minimizes changes to the copper busbar and main busbar, and improves product reliability.

Description

Technical Field

[0001] This invention belongs to the technical field of low-voltage switchgear, specifically relating to a flexible main busbar low-voltage switchgear and its usage method. Background Technology

[0002] Low-voltage switchgear is a common type of electrical equipment. In existing technologies, such as... Figure 1 As shown, the main busbar and switchgear are fixed as a single unit, and the position of the main busbar cannot be adjusted. Due to inaccurate on-site measurements, and the fact that the position and size parameters of the main busbar on low-voltage switchgear from different manufacturers, brands, and models may vary and are not designed as standard parts, problems may arise when connecting the main busbar of the new cabinet to the main busbar of the old cabinet, and extensive changes to the copper busbars may occur during installation.

[0003] The current practice is to modify and fabricate the main busbar and copper busbar on-site according to the actual situation. However, this not only leads to long installation time and difficult modification, but also reduces the reliability of the product. Summary of the Invention

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

[0005] This invention is implemented according to the following technical solution:

[0006] This invention provides a flexible main busbar low-voltage switchgear, comprising:

[0007] The cabinet has a first installation area and a second installation area, the first installation area being located outside the cabinet and the second installation area being located inside the cabinet;

[0008] The main busbar is located in the first installation area;

[0009] The displacement device includes 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 and / or transverse directions.

[0010] A copper busbar assembly is disposed in the second mounting area. The copper busbar assembly is electrically connected to the main busbar, and the size of the copper busbar assembly changes with the position of the main busbar.

[0011] This application abandons the existing technology's fixed integrated design of the main busbar and switchgear, and innovatively designs the main busbar as a movable component. This application changes the position of the main busbar relative to the cabinet in the longitudinal direction through the longitudinal displacement mechanism, and / or changes the position of the main busbar relative to the cabinet in the lateral direction through the lateral displacement mechanism, so as to keep it consistent with the main busbar of the low-voltage switchgear on site, which facilitates on-site modification, and the installation time is short, the copper busbar and main busbar are modified with little, and the product reliability is improved.

[0012] In one embodiment, the longitudinal displacement mechanism includes a longitudinal bolt and a positioning nut, wherein the head of the longitudinal bolt is disposed on the base; and the tail of the longitudinal bolt passes through the mounting hole of the cabinet and is threadedly engaged with the positioning nut.

[0013] In one embodiment, the lateral displacement mechanism includes a fixed guide rail and a movable guide rail that slides 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.

[0014] In one embodiment, the lateral displacement mechanism further includes a connector, a screw, a screw support, and a drive mechanism;

[0015] The screw support is fixed on the base;

[0016] The screw is rotatably connected to the screw support; the length direction of the screw is consistent with the sliding direction of the movable guide rail, and the position of the screw relative to the base remains unchanged;

[0017] The driving mechanism is driven to one end of the screw;

[0018] The connector is connected to the movable guide rail, and the connector is threadedly engaged with the screw.

[0019] In one embodiment, the copper busbar assembly includes a connecting busbar, a transition busbar, and a telescopic busbar assembly;

[0020] One end of the connecting bar extends from the second mounting area to the first mounting area and is connected to the main busbar; the other end of the connecting bar is connected to the conversion bar.

[0021] One end of the telescopic row assembly is connected to the conversion row via a first displacement adjusting member;

[0022] The first displacement adjusting member includes a first elongated hole and a first locking member. The first elongated hole is disposed on the conversion row and / or telescopic row assembly, and the first locking member is locked in the first elongated hole.

[0023] In one embodiment, it further includes:

[0024] The telescopic row assembly includes 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 the second displacement adjusting member.

[0025] The second displacement adjusting member includes a second elongated hole and a second locking member. The second elongated hole is disposed 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 elongated hole.

[0026] In one embodiment, the copper busbar assembly further includes an extension busbar, one end of which is connected to the other end of the telescopic busbar assembly via a third displacement adjusting member;

[0027] The third displacement adjusting member includes a third elongated hole and a third locking member. The third elongated hole is disposed on the extension row and / or telescopic row assembly, and the third locking member is locked in the third elongated hole.

[0028] 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; the protective cover has an opening for exposing the main busbar.

[0029] This application also provides a method of using a flexible main busbar low-voltage switchgear, which utilizes the flexible main busbar low-voltage switchgear described above, including:

[0030] S1: Adjust the position of the main busbar of the flexible main busbar low-voltage switchgear in the longitudinal and / or transverse directions according to the position of the main busbar of the flexible main busbar low-voltage switchgear, 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.

[0031] S2: Fix the position of the copper busbar group and the main busbar of the flexible main busbar low-voltage switchgear.

[0032] In one embodiment, S1 specifically includes:

[0033] S11: Obtain the longitudinal and lateral positions of the main busbar of the low-voltage switchgear on site;

[0034] S12: Based on the longitudinal position of the main busbar of the low-voltage switchgear on site, operate the longitudinal displacement mechanism to adjust the longitudinal position of the main busbar of the flexible main busbar low-voltage switchgear.

[0035] S13: Based on the lateral position of the main busbar of the low-voltage switchgear on site, operate the lateral displacement mechanism to adjust the lateral position of the main busbar of the flexible main busbar low-voltage switchgear.

[0036] S14: Adjust the size of the copper busbar group according to the position of the main busbar of the flexible main busbar low-voltage switchgear.

[0037] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0038] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0039] Figure 1 This is a schematic diagram of a low-voltage switchgear in the prior art;

[0040] Figure 2 This is a side view of the flexible main busbar low-voltage switchgear of the present invention;

[0041] Figure 3 This is a front view of the flexible main busbar low-voltage switchgear of the present invention;

[0042] Figure 4 This is a top view of the main busbar and displacement device of the present invention;

[0043] Figure 5 This is a cross-sectional view of the main busbar and displacement device of the present invention;

[0044] Figure 6 This is a side view of the main busbar and displacement device of the present invention.

[0045] Explanation of reference numerals in the attached figures:

[0046] 10 Cabinet, 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 Connector, 334 Screw, 335 Screw Support, 336 Rocker, 40 Copper Busbar Assembly, 410 Connecting Busbar, 420 Conversion Busbar, 430 First End Busbar, 440 Second End Busbar, 450 Telescopic Busbar, 460 Extension Busbar, 50 Protective Cover, 60 Old Cabinet Main Busbar. Detailed Implementation

[0047] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0048] To better illustrate the present invention, the invention will now be described in further detail with reference to the accompanying drawings.

[0049] It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0050] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this 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” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0051] In the following description, when referring 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 this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0053] Combination Figures 2 to 6As shown, this application provides a flexible main busbar low-voltage switchgear, comprising: a cabinet 10, on which a first mounting area 101 and a second mounting area 102 are provided, the first mounting area 101 being located outside the cabinet 10 and the second mounting area 102 being located inside the cabinet 10; a main busbar 20, which is disposed in the first mounting area 101; a displacement device, comprising a base 310, a longitudinal displacement mechanism and a lateral displacement mechanism, wherein the base 310 is movably connected to the cabinet 10 through the longitudinal displacement mechanism, and the base 310 is movably connected to the main busbar 20 through the lateral displacement mechanism, so as to change the position of the main busbar 20 relative to the cabinet 10 in the longitudinal direction and / or the lateral direction; and a copper busbar assembly 40, which is disposed in the second mounting area 102, the copper busbar assembly 40 being electrically connected to the main busbar 20, and the size of the copper busbar assembly 40 changing with the position of the main busbar 20.

[0054] Specifically, the first installation area 101 on the cabinet 10 of this application is located outside the cabinet 10, and can be the top of the cabinet 10, the side of the cabinet 10, or other locations. Taking this embodiment as an example, preferably, the first installation area 101 is the top of the cabinet 10. When the flexible main busbar low-voltage switchgear of this application (hereinafter referred to as the new cabinet for easy distinction and understanding) is placed on site and connected to the low-voltage switchgear on site (hereinafter referred to as the old cabinet for easy distinction and understanding); for ease 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 lateral position of the main busbar 20 refers to the front and rear position of the main busbar 20.

[0055] Because the position and size parameters of the main busbar 20 on low-voltage switchgear vary depending on the manufacturer, brand, and model, it is not a standard part design. This application, based on the position of the main busbar 60 in the old cabinet, changes the position of the main busbar 20 relative to the cabinet body 10 in the longitudinal direction by operating the longitudinal displacement mechanism, and / or changes the position of the main busbar 20 relative to the cabinet body 10 in the lateral direction by operating the lateral displacement mechanism, based on the position of the main busbar 60 in the old cabinet, to ensure consistency with the main busbar 60 in the existing cabinet. This facilitates on-site modification, shortens installation time, minimizes changes to the copper busbars and main busbar 20, and improves product reliability. It should be noted that, to facilitate connection with the copper busbar assembly 40 and to facilitate movement of the copper busbar assembly 40 during subsequent position adjustments, the cabinet top is slotted corresponding to the position of the copper busbar assembly 40 to avoid affecting its movement.

[0056] 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 disposed on the base 310; the tail of the longitudinal bolt 321 passes through the mounting hole of the cabinet 10 and is threadedly engaged with the positioning nut 322. Specifically, the cabinet 10 of the low-voltage switchgear has a mounting hole at its top. The tail of the longitudinal bolt 321 passes through the mounting hole and is threadedly engaged with the positioning nut 322. By controlling the distance at which 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.

[0057] Furthermore, the base 310 has a through hole corresponding to the position of the longitudinal bolt 321; the longitudinal adjustment device also includes a limiting nut; the tail of the longitudinal bolt 321 passes through the through hole and is tightened with the limiting nut, thereby making the longitudinal bolt 321 detachable from 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, so as to meet the requirements of the main busbar 20 of the old cabinet with special specifications. In other embodiments, the longitudinal bolt 321 can be fixed to the base 310 by welding.

[0058] Regarding the longitudinal displacement mechanism, in other embodiments, the longitudinal displacement mechanism can also use a lifting motor connected to the base 310, or a lifting platform, etc., to change the longitudinal position of the main busbar 20.

[0059] In this embodiment, the lateral displacement mechanism includes a fixed guide rail 331 and a movable guide rail 332 that slides with the fixed guide rail 331. The fixed guide rail 331 is fixed to the base 310, and the movable guide rail 332 is fixed to 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 to maintain consistency with the old cabinet's main busbar 60 and establish an electrical connection, facilitating on-site modification.

[0060] To better facilitate the sliding of the movable guide rail 332, in this embodiment, the lateral displacement mechanism further includes a connector 333, a screw 334, a screw support 335, and a drive mechanism. The screw support 335 is fixed to the base 310. The screw 334 is rotatably connected to the screw support 335. The length direction of the screw 334 is consistent with the sliding direction of the movable guide rail 332, and the position of the screw 334 relative to the base 310 remains unchanged. The drive mechanism is drivenly connected to one end of the screw 334. The connector 333 is connected to the movable guide rail 332, and the connector 333 is threadedly engaged with the screw 334. Specifically, the driving mechanism drives the screw 334 to rotate. Since the position of the screw 334 relative to the base 310 remains unchanged, the connecting rod can drive the movable guide rail 332 to slide synchronously under the rotation of the screw 334, thereby changing the lateral position of the movable guide rail 332 relative to the fixed guide rail 331, and thus changing the position of the main busbar 20. It should be noted that the threaded engagement between the screw 334 and the connecting rod can effectively increase the movement accuracy of the main busbar 20 during lateral movement.

[0061] Furthermore, the connector 333 is provided with a nut so that it can be threaded into the screw 334. The screw support 335 is provided with a bearing, which is used to connect to the screw 334 so as to fix the screw 334 without affecting its rotation.

[0062] In this embodiment, the driving mechanism can be a rocker arm 336, which is manually operated to drive the screw 334 to rotate. Preferably, the rocker arm 336 and the screw 334 are detachably connected.

[0063] In this embodiment, there are two fixed guide rails 331 and two movable guide rails 332, with one fixed guide rail 331 corresponding to one movable guide rail 332 to form a guide rail group; the connector 333, screw 334, and screw support 335 are located between the two guide rail groups. In this embodiment, the main busbar 20 is supported and supported by the two guide rail groups to improve the stability of the movement of the main busbar 20.

[0064] In this embodiment, the movable guide rail 332 is connected and fixed to the main busbar 20 via the main busbar clamp.

[0065] In this embodiment, the copper busbar assembly 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 mounting area 102 to the first mounting 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 elongated hole and a first locking member, the first elongated hole is disposed on the conversion busbar 420 and / or the telescopic busbar assembly, and the first locking member is locked in the first elongated hole.

[0066] Specifically, the first elongated hole is provided on the conversion row 420 and the telescopic row 450. The length direction of the first elongated hole is consistent with the lateral direction of the main female row 20. When the main female row 20 moves laterally under the action of the lateral moving mechanism, the connecting row 410 and the conversion row 420 will also move laterally synchronously, while the position of the telescopic row assembly remains unchanged. After the main female row 20 stops moving laterally, the first locking member (bolt and nut) is locked to ensure that the positions of the connecting row 410, the conversion row 420 and the telescopic row assembly remain unchanged.

[0067] Further, the telescopic row assembly includes a first end row 430, a second end row 440, and a telescopic row 450. One end of the telescopic row 450 is connected to the first end row 430 via a second displacement adjusting member, and the other end of the telescopic row 450 is connected to the second end row 440 via the second displacement adjusting member. The second displacement adjusting member includes a second elongated hole and a second locking member. The second elongated hole is disposed on the first end row 430 and / or the second end row 440 and / or the telescopic row 450, and the second locking member is locked in the second elongated hole.

[0068] Specifically, the second elongated 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 elongated hole is consistent with the longitudinal direction of the main female row 20. When the main female row 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 female row 20 stops moving longitudinally, the second locking member (bolt and nut) locks to ensure that the positions of the first end row 430, the second end row 440, and the telescopic row 450 remain unchanged.

[0069] If the moved main busbar 20 still cannot be aligned with the position of the old main busbar 60, the copper busbar assembly 40 further includes an extension busbar 460, one end of which is connected to the other end of the telescopic busbar assembly via a third displacement adjusting member; the third displacement adjusting member includes a third elongated hole and a third locking member, the third elongated hole being disposed on the extension busbar 460 and / or the telescopic busbar assembly, and the third locking member being locked in the third elongated hole.

[0070] Specifically, the third elongated hole is provided on the extension bar 460 and the telescopic bar assembly. The length direction of the third elongated hole is consistent with the lateral direction of the main busbar 20. When the main busbar 20 moves longitudinally under the action of the lateral moving mechanism, since the other end of the extension bar 460 is fixedly connected to the circuit breaker (i.e., the position of the extension bar 460 remains unchanged), the connecting bar 410, the conversion bar 420 and the telescopic bar 450 will move laterally accordingly. After the main busbar 20 stops moving laterally, the third locking member (bolt and nut) locks to ensure that the positions of the connecting bar 410, the conversion bar 420, the telescopic bar 450 and the extension bar 460 remain unchanged.

[0071] In an embodiment, the flexible main busbar low-voltage switchgear further includes a protective cover 50, which 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; the protective cover 50 is provided with an opening for exposing the main busbar 20 so that the main busbar 20 of the new cabinet can be connected to the main busbar 60 of the old cabinet.

[0072] This application also provides a method of using a flexible main busbar low-voltage switchgear, which utilizes the flexible main busbar low-voltage switchgear described above, including:

[0073] S1: Adjust the position of the main busbar 20 of the flexible main busbar low-voltage switchgear in the longitudinal and / or transverse directions according to the position of the main busbar 20 of the flexible main busbar low-voltage switchgear, 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 switchgear; S1 specifically includes:

[0074] S11: Obtain the longitudinal and lateral positions of the main busbar 20 of the low-voltage switchgear on site;

[0075] S12: Based on the longitudinal position of the main busbar 20 of the low-voltage switchgear on site, operate the longitudinal displacement mechanism to adjust the longitudinal position of the main busbar 20 of the flexible main busbar low-voltage switchgear.

[0076] S13: Based on the lateral position of the main busbar 20 of the low-voltage switchgear on site, operate the lateral displacement mechanism to adjust the lateral position of the main busbar 20 of the flexible main busbar low-voltage switchgear.

[0077] S14: Adjust the size of the copper busbar group according to the position of the main busbar of the flexible main busbar low-voltage switchgear.

[0078] S2: Fix the positions of the copper busbar group 40 and the main busbar 20 of the flexible main busbar low-voltage switchgear.

[0079] Specifically, the flexible main busbar low-voltage switchgear of this application is assembled from a cabinet 10, a main busbar 20, and a protective cover 50. For ease of transportation and installation, the low-voltage switchgear is shipped with these three parts integrated in pre-defined positions. In use, the protective cover 50 is first removed to expose the main busbar 20; the first locking member between the transition busbar and the first end busbar 430 is loosened, as are the bolts of the second locking member of the telescopic busbar assembly. Based on the longitudinal position of the main busbar 20 of the existing low-voltage switchgear, the positioning nut 322 is tightened or loosened to adjust the longitudinal position of the main busbar 20 of the new flexible main busbar low-voltage switchgear. Based on the lateral position of the main busbar 20 of the existing low-voltage switchgear, the screw 334 is rotated forward or backward using the rocker arm 336 to adjust the lateral position of the main busbar 20 of the new flexible main busbar low-voltage switchgear.

[0080] If the moved main busbar 20 still cannot align with the old main busbar 20, tighten the third locking piece between the extension busbar 460 and the telescopic busbar 450, and continue moving the new main busbar 20 until it finally aligns with the old main busbar 20. Finally, tighten the first, second, and third locking pieces of the copper busbar assembly 40; and install the protective cover 50.

[0081] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can 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. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A flexible main busbar low-voltage switchgear, characterized in that, include: The cabinet has a first installation area and a second installation area, the first installation area being located outside the cabinet and the second installation area being located inside the cabinet; The main busbar is located in the first installation area; The displacement device includes 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 and / or transverse directions. A copper busbar assembly is disposed in the second mounting area. The copper busbar assembly is electrically connected to the main busbar, and the size of the copper busbar assembly changes with the position of the main busbar. The copper busbar assembly includes a connecting busbar, a transition busbar, and a telescopic busbar assembly; One end of the connecting bar extends from the second mounting area to the first mounting area and is connected to the main busbar; 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 via a first displacement adjusting member; The first displacement adjusting member includes a first elongated hole and a first locking member. The first elongated hole is disposed on the conversion row and / or telescopic row assembly, and the first locking member is locked in the first elongated hole.

2. The flexible main busbar low-voltage switchgear according to claim 1, characterized in that: The longitudinal displacement mechanism includes a longitudinal bolt and a positioning nut. The head of the longitudinal bolt is disposed on the base; the tail of the longitudinal bolt passes through the mounting hole of the cabinet and is threaded into the positioning nut.

3. The flexible main busbar low-voltage switchgear according to claim 1, characterized in that: The lateral displacement mechanism includes a fixed guide rail and a movable guide rail that slides 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, characterized in that: The lateral displacement mechanism also includes a connector, a screw, a screw support base, and a drive mechanism; The screw support is fixed on the base; The screw is rotatably connected to the screw support; the length direction of the screw is consistent with the sliding direction of the movable guide rail; The driving mechanism is driven to one end of the screw; The connector is connected to the movable guide rail, and the connector is threadedly engaged with the screw.

5. The flexible main busbar low-voltage switchgear according to claim 1, characterized in that: The telescopic row assembly includes 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 the second displacement adjusting member. The second displacement adjusting member includes a second elongated hole and a second locking member. The second elongated hole is disposed 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 elongated hole.

6. The flexible main busbar low-voltage switchgear according to claim 1, characterized in that: The copper busbar assembly also includes an extension busbar, one end of which is connected to the other end of the telescopic busbar assembly via a third displacement adjusting member; The third displacement adjusting member includes a third elongated hole and a third locking member. The third elongated hole is disposed on the extension row and / or telescopic row assembly, and the third locking member is locked in the third elongated hole.

7. The flexible main busbar low-voltage switchgear according to claim 1, characterized in that: The flexible main busbar low-voltage switchgear also includes a protective cover, which is connected to the cabinet body and covers the main busbar and displacement device; the protective cover has an opening for exposing the main busbar.

8. A method of using a flexible main busbar low-voltage switchgear, wherein the application is the flexible main busbar low-voltage switchgear as described in any one of claims 1-7, characterized in that, include: S1: Adjust the position of the main busbar of the flexible main busbar low-voltage switchgear in the longitudinal and / or transverse directions according to the position of the main busbar of the flexible main busbar low-voltage switchgear, 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 position of the copper busbar group and the main busbar of the flexible main busbar low-voltage switchgear.

9. The method of using the flexible main busbar low-voltage switchgear according to claim 8, characterized in that, S1 specifically includes: S11: Obtain the longitudinal and lateral positions of the main busbar of the low-voltage switchgear on site; S12: Based on the longitudinal position of the main busbar of the low-voltage switchgear on site, operate the longitudinal displacement mechanism to adjust the longitudinal position of the main busbar of the flexible main busbar low-voltage switchgear. S13: Based on the lateral position of the main busbar of the low-voltage switchgear on site, operate the lateral displacement mechanism to adjust the lateral position of the main busbar of the flexible main busbar low-voltage switchgear. S14: Adjust the size of the copper busbar group according to the position of the main busbar of the flexible main busbar low-voltage switchgear.

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