Connection devices and switchgear

Abstract

The present invention belongs to the technical field of electrical equipment and discloses a connection device and a switch cabinet. The switch cabinet includes a cabinet body, a main busbar, a transformer, and a connection device. The connection device is arranged in the cabinet body and specifically includes a bracket structure, a drive assembly, and multiple conductive blocks. By arranging the drive assembly and the bracket structure, multiple conductive blocks are arranged on the bracket structure at intervals. One end of the conductive block is connected to a wire, which is used to electrically connect to the transformer. The bracket structure is connected to the drive assembly, and the drive assembly is used to drive the bracket structure to move so that the other end of the conductive block contacts and electrically connects to the main busbar or separates from the main busbar. Multiple conductive blocks can be operated at the same time without having to operate each conductive block one by one, which simplifies the operation steps and improves efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a connecting device and a switch cabinet. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. When connecting the transformer and switchgear, they need to be connected through the main busbar.

[0003] In the prior art, the transformer is connected to the conductive block through a connecting wire, and the conductive block and the card plate are fixedly connected through a fixed block. First, the push plate is pulled forward and the spring is squeezed to move the fixed column forward. Then, the conductive block is inserted into the connecting groove of the main busbar body and the card plate is inserted into the slot of the main busbar body. Then, the push plate is released and the spring's reset effect is used to make the fixed column pass through the through hole of the card plate and insert it into the fixed groove of the main busbar body, so that the main busbar can be connected to the transformer through the conductive block. In this process, multiple conductive blocks need to be operated one by one, the operation steps are cumbersome, and the efficiency is low.

[0004] Therefore, there is an urgent need to provide a connection device and a switch cabinet to operate multiple conductive blocks at the same time, simplify the operation steps and improve efficiency. Summary of the Invention

[0005] The object of the present invention is to provide a connection device and a switch cabinet, which can operate multiple conductive blocks at the same time, simplify the operation steps and improve efficiency.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The present invention provides a connecting device, which is used to be arranged in a cabinet body of a switch cabinet, wherein a main busbar and a transformer are fixed in the cabinet body. The connecting device includes a bracket structure, a drive assembly and a plurality of conductive blocks. The plurality of conductive blocks are arranged at intervals on the bracket structure. One end of the conductive block is connected to a wire, which is used to be electrically connected to the transformer. The bracket structure is connected to the drive assembly, and the drive assembly is used to drive the bracket structure to move so that the other end of the conductive block contacts and is electrically connected to the main busbar or is separated from the main busbar.

[0008] As an optional technical solution for a connecting device, the driving assembly includes a rotating shaft and a gear. The rotating shaft is used to be rotatably connected to the cabinet body. The gear is arranged on the rotating shaft. The bracket structure is provided with a tooth plate that engages with the gear. The rotation of the rotating shaft drives the gear to rotate, and the rotation of the gear drives the tooth plate to move, so that the conductive block moves.

[0009] As an optional technical solution for the connecting device, the bracket structure includes a support plate and a fixed plate, the support plate is fixed to one side of the fixed plate, the tooth plate is provided on the other side of the fixed plate, and the conductive block is arranged on the support plate.

[0010] As an optional technical solution for the connecting device, the bracket structure is provided with a plurality of grooves, the grooves are arranged in a one-to-one correspondence with the conductive blocks, and the conductive blocks are clamped in the grooves.

[0011] As an optional technical solution for the connecting device, the bracket structure is further provided with a socket connected to the groove, one end of the wire is fixedly connected to the transformer, and the other end of the wire is passed through the socket and fixedly connected to the conductive block.

[0012] As an optional technical solution for the connecting device, the driving assembly further includes a driving member located outside the cabinet body, one end of the rotating shaft extends out of the cabinet body and is connected to the driving member, and the driving member is used to drive the rotating shaft to rotate.

[0013] As an optional technical solution of the connecting device, the connecting device further includes a locking structure, which is provided on the cabinet body and selectively locks the driving member on the cabinet body to restrict the rotation of the driving member.

[0014] As an optional technical solution for the connecting device, the connecting device also includes two positioning plug-ins, a first positioning hole is opened on both sides of the bracket structure, a second positioning hole is opened on the cabinet body, the second positioning holes are arranged in a one-to-one correspondence with the first positioning holes, and each of the positioning plug-ins can be detachably passed through the second positioning hole and inserted into the corresponding first positioning hole.

[0015] As an optional technical solution for a connecting device, the positioning plug-in includes an insertion rod, a positioning plate and a handle, the insertion rod and the handle are respectively fixed on both sides of the positioning plate, the insertion rod passes through the second positioning hole and is inserted into the first positioning hole, and the positioning plate is attached to the outer side of the cabinet body.

[0016] The present invention provides a switch cabinet comprising a cabinet body, a main busbar, a transformer and the above-mentioned connecting device.

[0017] Beneficial effects:

[0018] The present invention provides a connection device for being arranged in the cabinet of a switch cabinet, wherein a main busbar and a transformer are fixed in the cabinet, and the connection device comprises a bracket structure, a drive assembly and a plurality of conductive blocks, wherein the plurality of conductive blocks are arranged at intervals on the bracket structure, one end of the conductive block is connected to a wire, the wire is used to be electrically connected to the transformer, the bracket structure is connected to the drive assembly, and the drive assembly is used to drive the bracket structure to move so that the other end of the conductive block contacts and is electrically connected to the main busbar or is separated from the main busbar. By setting the drive assembly and the bracket structure, the plurality of conductive blocks are placed at intervals on the bracket structure, one end of the conductive block is electrically connected to the transformer via a wire, and the drive assembly is used to drive the bracket structure to move in the cabinet so that the other end of the conductive block contacts and is electrically connected to the main busbar or is separated from the main busbar, and the plurality of conductive blocks can be operated at the same time without operating the conductive blocks one by one, thereby simplifying the operation steps and improving efficiency.

[0019] The present invention provides a switch cabinet comprising a cabinet body, a main busbar, a transformer and the above-mentioned connecting device. By providing the connecting device, multiple conductive blocks can be operated at the same time, simplifying the operation steps and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural diagram of a switch cabinet provided by an embodiment of the present invention;

[0021] Figure 2 is a cross-sectional view of a switch cabinet provided by an embodiment of the present invention from a first perspective;

[0022] Figure 3 Schematic diagram of the structure of the main busbar and the conductive block provided by an embodiment of the present invention;

[0023] Figure 4 is a cross-sectional view of a switch cabinet provided by an embodiment of the present invention from a second viewing angle;

[0024] Figure 5 This is a partial structural diagram of a switch cabinet provided by an embodiment of the present invention;

[0025] Figure 6 is a cross-sectional view of a switch cabinet provided by an embodiment of the present invention from a third viewing angle;

[0026] Figure 7 It is a cross-sectional view of the switch cabinet provided by an embodiment of the present invention from a fourth perspective.

[0027] In the picture:

[0028] 11. Cabinet body; 112. Ventilation duct; 113. Dust screen; 114. Mounting plate; 115. Cabinet door; 116. Door handle; 117. Fan;

[0029] 12. Main busbar; 13. Transformer; 14. Conductive block; 15. Wire;

[0030] 20. Bracket structure; 21. Support plate; 211. Groove; 212. Socket; 22. Fixing plate; 221. First positioning hole; 23. Tooth plate; 24. Auxiliary plate;

[0031] 30. Driving assembly; 31. Rotating shaft; 32. Gear; 33. Driving member; 331. Rotating portion; 332. Handle portion;

[0032] 40. Positioning plug-in; 41. Insertion rod; 42. Positioning plate; 43. Handle; 431. Connecting part; 432. Operating rod. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0034] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0037] like Figures 1 to 7 As shown, the present invention provides a connection device and a switch cabinet, which includes a cabinet body 11, a main busbar 12, a transformer 13, and a connection device. The connection device is arranged in the cabinet body 11 of the switch cabinet, and the main busbar 12 and the transformer 13 are both fixed in the cabinet body 11. The connection device includes a bracket structure 20, a drive assembly 30, and a plurality of conductive blocks 14. The plurality of conductive blocks 14 are arranged on the bracket structure 20 at intervals. One end of the conductive block 14 is connected to a wire 15, which is used to electrically connect to the transformer 13. The bracket structure 20 is connected to the drive assembly 30, and the drive assembly 30 is used to drive the bracket structure 20 to move so that the other end of the conductive block 14 contacts and electrically connects to the main busbar 12 or separates from the main busbar 12.

[0038] By setting up a drive component 30 and a bracket structure 20, multiple conductive blocks 14 are placed on the bracket structure 20 at intervals. One end of the conductive block 14 is electrically connected to the transformer 13 through a wire 15. The drive component 30 is used to drive the bracket structure 20 to move in the cabinet 11 so that the other end of the conductive block 14 contacts and electrically connects to the main busbar 12 or separates from the main busbar 12. Multiple conductive blocks 14 can be operated at the same time without having to operate the conductive blocks 14 one by one, which simplifies the operating steps and improves efficiency.

[0039] See also Figure 1 The cabinet body 11 is further provided with two cabinet doors 115, and the sides of the two cabinet doors 115 that are away from each other are hinged to the cabinet body 11; the cabinet doors 115 are provided with cabinet door handles 116. By pulling the cabinet door handles 116 to open the cabinet doors 115, a suitable force-bearing position is provided for the cabinet doors 115.

[0040] See also Figure 3 In this embodiment, the transformer 13 is fixed to the bottom wall of the cabinet 11, and the main busbar 12 is fixed to the top wall of the cabinet 11. The bottom of the main busbar 12 is provided with multiple receiving slots. The shape of the receiving slots matches the shape of the conductive blocks 14. The conductive blocks 14 can be inserted into or removed from the receiving slots. The depth of the receiving slots is less than the thickness of the conductive blocks 14. When the bracket structure 20 moves and gradually approaches the main busbar 12, the conductive blocks 14 on the bracket structure 20 gradually insert into the receiving slots of the main busbar 12. The conductive blocks 14 contact the slot walls and are electrically connected to the main busbar 12. When the bracket structure 20 moves and moves away from the main busbar 12, the conductive blocks 14 are separated from the main busbar 12.

[0041] Furthermore, the drive assembly 30 includes a rotating shaft 31 and a gear 32. The rotating shaft 31 is configured to be rotationally connected to the cabinet 11. The gear 32 is disposed on the rotating shaft 31. The bracket structure 20 is provided with a toothed plate 23 that meshes with the gear 32. The rotating shaft 31 rotates to drive the gear 32, which in turn drives the toothed plate 23 to move, thereby moving the conductive block 14. By providing the rotating shaft 31 and the gear 32, the rotating shaft 31 rotates to drive the gear 32, which in turn drives the toothed plate 23 on the bracket structure 20 to move, thereby driving the conductive block 14. This provides a simple structure, capable of achieving highly precise motion transmission, and ensuring smooth movement of the bracket structure 20 and the conductive block 14. In other embodiments, a hydraulic drive or an electric motor may also be used to drive the bracket structure 20.

[0042] Specifically, the bracket structure 20 includes a support plate 21 and a fixed plate 22. The support plate 21 is fixed to one side of the fixed plate 22. Tooth plates 23 are provided on both sides of the fixed plate 22. The conductive block 14 is disposed on the support plate 21. By providing the support plate 21 and tooth plates 23 on both sides of the fixed plate 22, the support plate 21 on one side of the fixed plate 22 is used to place the conductive block 14, and the tooth plate 23 on the other side of the fixed plate 22 is used to mesh with the gear 32 of the drive assembly 30. This ensures that the meshing of the tooth plate 23 and the gear 32 does not interfere with the arrangement of the conductive block 14.

[0043] In this embodiment, the support plate 21 and the fixed plate 22 are an integrated structure, and the tooth plate 23 is embedded and fixed on the fixed plate 22; the support plate 21 extends in the horizontal direction, and the fixed plate 22 extends in the vertical direction. The support plate 21 is connected to the middle of the fixed plate 22, and the overall cross-section of the tooth plate 23 and the fixed plate 22 is T-shaped; two tooth plates 23 are arranged side by side, and two gears 32 are also arranged accordingly; the rotating shaft 31 extends in the horizontal direction, and the two gears 32 are symmetrically distributed in the middle position of the rotating shaft 31; when the rotating shaft 31 rotates, the gear 32 engages with the tooth plate 23, thereby driving the bracket structure 20 to rise and fall in the vertical direction in the cabinet 11, wherein the tooth plate 23 and the fixed plate 22 can be fixed by welding.

[0044] In this embodiment, the bracket structure 20 further includes an auxiliary plate 24, which is attached to and fixed to the side of the fixed plate 22 where the support plate 21 is provided, and is disposed above the support plate 21. The bottom surface of the auxiliary plate 24 is attached to the surface of the support plate 21, and the top surface of the auxiliary plate 24 is flush with the top surface of the fixed plate 22. Regarding the bracket structure 20, the tooth plate 23 is engaged with the gear 32, and the side of the auxiliary plate 24 away from the tooth plate 23 abuts against the main busbar 12, and the auxiliary plate 24 is movable relative to the main busbar 12. In other embodiments, to ensure the stability of the bracket structure 20, a guide rail or the like may be provided to limit the direction of movement of the bracket structure 20.

[0045] Optionally, the bracket structure 20 is provided with a plurality of grooves 211, each corresponding to one of the conductive blocks 14. The conductive blocks 14 are retained within the grooves 211. In this embodiment, the grooves 211 are provided on the support plate 21. By providing the grooves 211 on the bracket structure 20 and retaining the conductive blocks 14 within the grooves 211, the position of the conductive blocks 14 can be accurately controlled, preventing displacement of the conductive blocks 14 when the bracket structure 20 is moved, and allowing the conductive blocks 14 to be accurately inserted into the main busbar 12.

[0046] Optionally, the bracket structure 20 is further provided with a socket 212 that communicates with the groove 211. One end of the wire 15 is fixedly connected to the transformer 13, and the other end of the wire 15 is passed through the socket 212 and fixedly connected to the conductive block 14. In this embodiment, there are five conductive blocks 14 and five wires 15, and correspondingly, there are also five grooves 211 and five sockets 212.

[0047] By setting the socket 212, after the wire 15 is fixed to the conductive block 14, when the conductive block 14 is placed in the groove 211, the wire 15 is inserted into the bracket structure 20 from the socket 212 at the same time, which can ensure that each wire 15 is clearly distinguished, clear and orderly, avoids the wires 15 from crossing and confusion, and helps to reduce the occurrence of faults.

[0048] To facilitate operation by staff, the drive assembly 30 further includes a drive member 33, which is located outside the cabinet 11. One end of the rotating shaft 31 extends out of the cabinet 11 and is connected to the drive member 33. The drive member 33 is used to rotate the rotating shaft 31. By disposing the drive member 33 outside the cabinet 11 and using the drive member 33 to drive the rotating shaft 31, space inside the cabinet 11 can be saved and maintenance of the drive member 33 is facilitated.

[0049] In this embodiment, the driving member 33 may be a rotating handle fixedly connected to the rotating shaft 31. A worker can hold the rotating handle and rotate the rotating handle to drive the rotating shaft 31. In other embodiments, the driving member 33 may also be a motor.

[0050] See also Figure 5 The driving member 33 includes a rotating part 331 and a handle part 332. The rotating part 331 is in the shape of a circular plate. The rotating shaft 31 and the handle part 332 are respectively fixed on both sides of the rotating part 331. The rotating shaft 31 is connected to the center position of the rotating part 331, and the handle part 332 is connected to the edge position of the rotating part 331.

[0051] By setting the rotating part 331 and the handle part 332, when the handle part 332 rotates, the rotating part 331 and the rotating shaft 31 are driven to rotate. By connecting the rotating shaft 31 and the handle part 332 at different positions of the rotating part 331, the rotating part 331 can provide a good force-bearing position for easy operation.

[0052] Furthermore, the connection device also includes two positioning plugs 40. A first positioning hole 221 is opened on both sides of the bracket structure 20, and a second positioning hole is opened on the cabinet body 11. The second positioning holes are arranged in a one-to-one correspondence with the first positioning holes 221. Each positioning plug 40 is detachably passed through the second positioning hole and inserted into the corresponding first positioning hole 221. By providing the positioning plugs 40 on both sides of the cabinet body 11, the positioning plugs 40 can be passed through the second positioning holes of the cabinet body 11 and inserted into the first positioning hole 221 of the bracket structure 20, thereby limiting the bracket structure 20 from further movement relative to the cabinet body 11 and achieving positioning.

[0053] In this embodiment, a second positioning hole is respectively provided on both side panels of the cabinet body 11 , and a first positioning hole 221 is also respectively provided on both sides of the fixing plate 22 . The two first positioning holes 221 are not connected to each other.

[0054] Optionally, the positioning plug-in 40 includes an insertion rod 41, a positioning plate 42, and a handle 43. The insertion rod 41 and the handle 43 are respectively fixed to both sides of the positioning plate 42. The insertion rod 41 passes through the second positioning hole and is inserted into the first positioning hole 221. The positioning plate 42 is attached to the outer side of the cabinet 11. By providing the positioning plug-in 40 with the positioning plate 42 and the handle 43, the staff holds the handle 43 and inserts the insertion rod 41 into the second positioning hole and the first positioning hole 221 until the positioning plate 42 is attached to the outer side of the cabinet 11, which facilitates the plug-in and pull-out operations, enables easy and smooth insertion or removal of the positioning plug-in 40, and can limit the insertion depth and insertion direction of the insertion rod 41.

[0055] To facilitate operation, the handle 43 includes a connecting portion 431 and an operating rod 432. One end of the connecting portion 431 is connected to the positioning plate 42, and the other end is connected to the middle of the operating rod 431. The connecting portion 432 extends in a direction perpendicular to the positioning plate 42, and the operating rod 432 intersects the extending direction of the connecting portion 431. The arrangement of the connecting portion 431 and the operating rod 432 allows the handle 43 to provide sufficient grip space.

[0056] In this embodiment, the positioning plate 42 is in the shape of a circular plate, the insertion rod 41 and the connecting portion 431 are both in the shape of a cylinder, and the cross section of the operating rod portion 432 is in the shape of a rectangle.

[0057] Optionally, the connection device also includes a locking structure, which is provided on the cabinet 11, and the locking structure selectively locks the driving member 33 on the cabinet 11 to limit the rotation of the driving member 33. By providing a locking structure on the cabinet 11, when the conductive block 14 is in contact with and electrically connected to the main busbar 12, the driving member 33 is locked to the cabinet 11 by the locking structure, thereby limiting the driving member 33 from continuing to rotate, thereby achieving the positioning of the bracket structure 20; adding a locking structure on the basis of the positioning plug-in 40 can achieve dual positioning of the bracket structure 20. Among them, the locking structure is detachably fixed to the cabinet 11 by means of bolts, snap-fits, etc., and the locking structure can limit the rotation of the driving member 33 by snapping or plugging with the rotating part 331 or the handle part 332, such as a latch; the locking structure can also use a mechanically or electronically controlled lock structure to limit the rotation of the driving member 33.

[0058] Optionally, a ventilation duct 112 is embedded and fixed in the cabinet 11, connecting the interior of the cabinet 11 to the external environment through the ventilation duct 112. A dust screen 113 is provided on the inner wall of the ventilation duct 112. The ventilation duct 112 with the dust screen 113 on the cabinet 11 allows air to circulate between the external environment and the interior of the cabinet 11, facilitating heat dissipation within the cabinet 11 and ensuring that the electrical equipment within the cabinet 11 does not cease operation due to excessive heat. The dust screen 113 effectively prevents impurities from entering the cabinet 11.

[0059] In this embodiment, a ventilation pipe 112 is embedded and fixed on both sides of the cabinet body 11, and the inner walls of the two ventilation pipes 112 are provided with a dustproof net 113; a mounting plate 114 is also fixed to the inner wall of one of the ventilation pipes 112, and the mounting plate 114 is located on the side of the dustproof net 113 facing the inside of the cabinet body 11, and a fan 117 is provided on the mounting plate 114, and the fan 117 is located between the mounting plate 114 and the dustproof net 113; the mounting plate 114 is cross-shaped.

[0060] By providing the cross-shaped mounting plate 114 and the fan 117 , the fan 117 can drive the air flow inside the cabinet 11 , thereby accelerating the heat dissipation.

[0061] The following is the specific use process of the connection device:

[0062] Fix one end of the wire 15 on the transformer 13, and fix the other end of the wire 15 on the conductive block 14. After connecting each wire 15 to the corresponding conductive block 14, place the conductive block 14 in the groove 211 on the support plate 21, and insert the corresponding wire 15 into the socket 212; remove the positioning plug 40, use the driving member 33 to drive the rotating shaft 31 to rotate, at this time the gear 32 engages with the tooth plate 23, thereby pushing the bracket structure 20 to rise in the cabinet 11 and gradually approach the main busbar 12; as the driving member 33 rotates, the conductive block 14 rises and is inserted into the corresponding receiving groove at the bottom of the main busbar 12 (see Figure 7 ), and finally, the positioning plug 40 is passed through the second positioning hole of the cabinet 11 and inserted into the first positioning hole 221 of the bracket structure 20 to achieve the positioning of the bracket structure 20, and the bracket structure 20 cannot continue to rise or fall; if the positioning plug 40 is subsequently pulled out, the driving member 33 is used to drive the rotating shaft 31 to rotate in the opposite direction, so that the bracket structure 20 descends in the cabinet 11, then the conductive block 14 will gradually separate from the main busbar 12.

[0063] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A connecting device, for being arranged in a cabinet body (11) of a switch cabinet, wherein a main busbar (12) and a transformer (13) are fixed in the cabinet body (11), characterized in that: The connecting device comprises a bracket structure (20), a driving assembly (30) and a plurality of conductive blocks (14), wherein the plurality of conductive blocks (14) are arranged at intervals on the bracket structure (20), one end of the conductive block (14) is connected to a wire (15), and the wire (15) is used to be electrically connected to the transformer (13), the bracket structure (20) is connected to the driving assembly (30), and the driving assembly (30) is used to drive the bracket structure (20) to move so that the other end of the conductive block (14) contacts and is electrically connected to the main busbar (12) or is separated from the main busbar (12); The driving assembly (30) includes a rotating shaft (31) and a gear (32), wherein the rotating shaft (31) is used for being rotatably connected to the cabinet (11), the gear (32) is arranged on the rotating shaft (31), and the bracket structure (20) is provided with a tooth plate (23) meshing with the gear (32), the rotating shaft (31) rotates to drive the gear (32) to rotate, and the rotating gear (32) drives the tooth plate (23) to move, thereby moving the conductive block (14); The bracket structure (20) comprises a support plate (21) and a fixed plate (22), the support plate (21) is fixed to one side of the fixed plate (22), the tooth plate (23) is provided on the other side of the fixed plate (22), and the conductive block (14) is provided on the support plate (21); The bracket structure (20) is provided with a plurality of grooves (211), the grooves (211) are arranged in a one-to-one correspondence with the conductive blocks (14), and the conductive blocks (14) are clamped in the grooves (211); The bracket structure (20) is further provided with a socket (212) communicating with the groove (211); one end of the wire (15) is fixedly connected to the transformer (13); the other end of the wire (15) passes through the socket (212) and is fixedly connected to the conductive block (14).

2. The connecting device according to claim 1, characterized in that The driving assembly (30) further includes a driving member (33) located outside the cabinet (11); one end of the rotating shaft (31) extends out of the cabinet (11) and is connected to the driving member (33); the driving member (33) is used to drive the rotating shaft (31) to rotate.

3. The connection device according to claim 2, characterized in that The connecting device further comprises a locking structure, which is arranged on the cabinet (11), and the locking structure selectively locks the driving member (33) on the cabinet (11) to limit the rotation of the driving member (33).

4. The connecting device according to claim 1, characterized in that The connecting device further comprises two positioning plug-ins (40), first positioning holes (221) are provided on both sides of the bracket structure (20), second positioning holes are provided on the cabinet body (11), the second positioning holes are arranged in a one-to-one correspondence with the first positioning holes (221), and each positioning plug-in (40) is detachably passed through the second positioning hole and inserted into the corresponding first positioning hole (221).

5. The connecting device according to claim 4, characterized in that The positioning plug-in unit (40) comprises an insertion rod (41), a positioning plate (42) and a handle (43), wherein the insertion rod (41) and the handle (43) are respectively fixed to two sides of the positioning plate (42), the insertion rod (41) passes through the second positioning hole and is inserted into the first positioning hole (221), and the positioning plate (42) is attached to the outer side of the cabinet (11).

6. Switchgear, characterized in that, It comprises a cabinet (11), a main busbar (12), a transformer (13), and a connecting device according to any one of claims 1 to 5.

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