CN218102301U

CN218102301U - Switch cabinet

Info

Publication number: CN218102301U
Application number: CN202221747773.2U
Authority: CN
Inventors: 张龙; 游晓斌
Original assignee: Zhuhai Wharton Electric Co ltd
Current assignee: Zhuhai Wharton Electric Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-12-20
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a switch cabinet, include: the cabinet body is provided with a rotating shaft and a supporting shaft, the rotating shaft is rotatably arranged on the cabinet body, and the extending directions of the rotating shaft and the supporting shaft are the same; the vacuum circuit breaker is arranged in the cabinet body, and the lower end of the vacuum circuit breaker is provided with a fixed contact; the isolator subassembly sets up in the cabinet body, and the isolator subassembly sets up in vacuum circuit breaker's below, and the isolator subassembly includes adapter sleeve, actuating lever and contact lever, and the adapter sleeve cup joints in the pivot, and the articulated adapter sleeve of actuating lever one end, the articulated middle part of contact lever of the other end of actuating lever, the articulated back shaft of one end of contact lever, the other end of contact lever are used for contacting the static contact, and the actuating lever sets up to the arc, and the arc hunch portion of actuating lever sets up.

Description

Switch cabinet

Technical Field

The utility model relates to a cubical switchboard technical field, in particular to cubical switchboard.

Background

A switch cabinet, also called a power distribution cabinet, is a commonly used power device, and mainly comprises an isolating switch and a circuit breaker.

In the existing switch cabinet, the isolating switch is of a simple knife switch type, namely the isolating switch which directly drives the knife switch to be closed is high in danger; and the existing switch cabinet mainly depends on SF6 gas to realize space internal insulation, and the SF6 gas is greenhouse gas and is not environment-friendly.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a cubical switchboard adopts brand-new isolator mechanism for isolator separating brake combined floodgate is safer.

According to the utility model discloses a cubical switchboard of first aspect embodiment includes: the cabinet body is provided with a rotating shaft and a supporting shaft, the rotating shaft is rotatably arranged on the cabinet body, and the extending directions of the rotating shaft and the supporting shaft are the same; the vacuum circuit breaker is arranged in the cabinet body, and a fixed contact is arranged at the lower end of the vacuum circuit breaker; the isolation switch assembly is arranged in the cabinet body and arranged below the vacuum circuit breaker and comprises a connecting sleeve, a driving rod and a contact rod, the connecting sleeve is connected to the rotating shaft in a sleeved mode, one end of the driving rod is hinged to the connecting sleeve, the other end of the driving rod is hinged to the middle of the contact rod, one end of the contact rod is hinged to the supporting shaft, the other end of the contact rod is used for contacting the static contact, the driving rod is arranged to be arc-shaped, and an arc arch portion of the driving rod is arranged upwards.

According to the utility model discloses cubical switchboard has following beneficial effect at least: the isolating switch component is provided with a complex mechanical structure, the rotating shaft and the supporting shaft are used as a basic supporting piece to support the connecting sleeve, the driving rod and the contact rod, the connecting sleeve and the rotating shaft are connected into a whole and can be driven by the rotating shaft to rotate, the driving rod and the contact rod are matched to form a swinging mechanism of the contact rod, the contact rod is made to contact with the static contact by swinging of the contact rod, after the rotating shaft rotates, the contact rod is pushed and pulled by the driving rod, the contact rod is not directly driven, but the driving rod is additionally arranged in the middle, so that the safety can be ensured, the driving rod is arranged in an arc shape, and an arc-shaped arch part of the driving rod is upwards arranged, so that the driving rod can keep a proper distance with the vacuum circuit breaker above in the process of being pushed and pulled by the rotating shaft, the driving rod is prevented from directly contacting or colliding with the vacuum circuit breaker, the angle between the contact rod and the horizontal plane can be adjusted by the arc-shaped driving rod during installation, and the visual inspection is convenient; in addition, the isolating switch assembly has a large moving range and a large space of the whole power distribution cabinet, air insulation can be adopted on the premise of ensuring the safety of opening and closing, SF6 is avoided being used, and the isolating switch assembly is more environment-friendly.

According to the utility model discloses a some embodiments, the pivot sets up to hexagonal prism shape, the adapter sleeve cooperation is cup jointed in the pivot, the pivot is rotated in order to drive the adapter sleeve rotates, hexagonal prism shape the pivot can with the adapter sleeve cooperation connection better avoids the adapter sleeve with the pivot produces relative motion.

According to some embodiments of the utility model, the isolator subassembly is provided with many sets, many sets the isolator subassembly is followed the axial of pivot is arranged, vacuum circuit breaker with the isolator subassembly one-to-one sets up, the many sets of setting the isolator subassembly can carry out the break-make to many circuits and switch, the break-make of centralized control circuit.

According to the utility model discloses a some embodiments, be provided with the connection piece on the back shaft, the connection piece with the contact lever one-to-one sets up, the connection piece includes articulated portion and installation department, the installation department is installed on the back shaft, articulated portion with the one end of contact lever is articulated, sets up the connection piece plays the effect of switching, and it is right that the outlet sleeve can be connected with the installation department the realization the circular telegram of connection piece, outlet sleeve are the copper bar of epoxy parcel promptly, is equivalent to a wire.

According to the utility model discloses a some embodiments, be provided with the draw-in groove on the back shaft, the installation department joint is in the draw-in groove, the installation department passes through the screw connection and is in on the back shaft, set up the draw-in groove can with the position of installation department is led just, also can make the installation department is in it is more stable to connect the back shaft.

According to the utility model discloses a some embodiments, still be provided with the polylith baffle on the back shaft, a switch space, every are injectd to two adjacent baffles all be provided with in the switch space the draw-in groove sets up the baffle can increase creepage distance, avoids two electrically conduct between the connection piece.

According to the utility model discloses a some embodiments, the baffle includes two piece at least plywoods, adjacent two be provided with the interval between the plywoods, set up air in the interval between the plywoods can regard as the insulating layer, further increases creepage distance, prevents two better electrically conductive between the connection piece.

According to the utility model discloses a some embodiments still include the grounding piece, the grounding piece sets up on the cabinet body, the grounding piece with the connection piece one-to-one sets up, the grounding piece is used for contacting the contact lever.

According to the utility model discloses a some embodiments, the other end of contact lever is provided with the bayonet socket, the static contact sets up to the card shape, the static contact is close to the one end of contact lever is provided with the guide inclined plane, sets up the bayonet socket can joint better the static contact is avoided the static contact at the in-process of combined floodgate with the contact lever separation.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a first schematic structural diagram of a switch cabinet according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram ii of a switch cabinet according to an embodiment of the present invention;

fig. 3 is an exploded view of the switchgear cabinet shown in fig. 1.

The cabinet body 100, the rotating shaft 110, the supporting shaft 120 and the grounding sheet 140;

a card slot 121, a partition 122, a laminate 122a, a switch space 123;

a connecting piece 130, a hinge part 131, and a mounting part 132;

a vacuum circuit breaker 200, a stationary contact 210;

the disconnector module 300, a connection sleeve 310, a driving rod 320, a contact rod 330, a bayonet 331, and a guide slope 332.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the present number, and the terms greater than, less than, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 3, a switchgear includes: the cabinet 100 is provided with a rotating shaft 110 and a supporting shaft 120, the rotating shaft 110 is rotatably arranged on the cabinet 100, and the extending directions of the rotating shaft 110 and the supporting shaft 120 are the same; the vacuum circuit breaker 200 is arranged in the cabinet 100, and a fixed contact 210 is arranged at the lower end of the vacuum circuit breaker 200; the disconnecting switch assembly 300 is arranged in the cabinet body 100, the disconnecting switch assembly 300 is arranged below the vacuum circuit breaker 200, the disconnecting switch assembly 300 comprises a connecting sleeve 310, a driving rod 320 and a contact rod 330, the connecting sleeve 310 is sleeved on the rotating shaft 110, one end of the driving rod 320 is hinged to the connecting sleeve 310, the other end of the driving rod 320 is hinged to the middle of the contact rod 330, one end of the contact rod 330 is hinged to the supporting shaft 120, the other end of the contact rod 330 is used for contacting with the fixed contact 210, the driving rod 320 is arranged to be arc-shaped, and the arc-shaped arch part of the driving rod 320 is arranged upwards. The set isolating switch assembly 300 has a complex mechanical structure, the rotating shaft 110 and the supporting shaft 120 are used as basic supporting pieces to support the connecting sleeve 310, the driving rod 320 and the contact rod 330, the connecting sleeve 310 and the rotating shaft 110 are connected into a whole and can be driven by the rotating shaft 110 to rotate, the driving rod 320 and the contact rod 330 are matched to form a swinging mechanism of the contact rod 330, the contact rod 330 is contacted with the static contact 210 by swinging the contact rod 330, after the rotating shaft 110 rotates, the contact rod 330 is pushed and pulled by the driving rod 320, the contact rod 330 is not directly driven, but the driving rod 320 is additionally arranged in the middle, so that the safety can be ensured, the driving rod 320 is arranged in an arc shape, and the arc-shaped arch part of the driving rod 320 is upwards arranged, so that the driving rod 320 can keep a proper distance with the vacuum circuit breaker 200 above in the process of being pushed and pulled by the rotating shaft 110, the driving rod 320 is prevented from directly contacting the vacuum circuit breaker 200 or colliding with the vacuum circuit breaker 200, the angle between the contact rod 330 and the horizontal plane can be adjusted by the arc-shaped driving rod during installation, and the visual inspection is convenient; in addition, the isolating switch assembly 300 has a large moving range and a large space of the whole power distribution cabinet, air insulation can be adopted on the premise of ensuring the safety of opening and closing, SF6 is avoided, and the isolating switch assembly is environment-friendly. It is understood that one end of the contact lever 330 may be hinged to the support shaft 120 directly, or hinged to the support shaft 120 indirectly through the connection piece 130; the vacuum interrupter 200 is only schematically shown in the figure and is not shown in its entirety.

In some embodiments, the rotating shaft 110 is configured to be hexagonal prism-shaped, the connecting sleeve 310 is fittingly sleeved on the rotating shaft 110, the rotating shaft 110 rotates to drive the connecting sleeve 310 to rotate, and the hexagonal prism-shaped rotating shaft 110 can be better fittingly connected with the connecting sleeve 310, so as to prevent the connecting sleeve 310 and the rotating shaft 110 from moving relatively. It is understood that the shaft 110 may be configured as a pentagonal prism, a quadrangular prism, or other polygonal shapes.

In some embodiments, the disconnecting switch assembly 300 is provided with a plurality of sets, the plurality of sets of disconnecting switch assemblies 300 are arranged along the axial direction of the rotating shaft 110, the vacuum circuit breakers 200 and the disconnecting switch assemblies 300 are arranged in a one-to-one correspondence manner, and the plurality of sets of disconnecting switch assemblies 300 can switch on and off of a plurality of lines to control the on and off of the lines in a centralized manner.

In some embodiments, the connecting piece 130 is disposed on the supporting shaft 120, the connecting piece 130 is disposed in one-to-one correspondence with the contact rod 330, the connecting piece 130 includes a hinge portion 131 and a mounting portion 132, the mounting portion 132 is mounted on the supporting shaft 120, the hinge portion 131 is hinged to one end of the contact rod 330, the connecting piece 130 is disposed to perform a switching function, the outlet sleeve can be connected to the mounting portion 132 to achieve power conduction to the connecting piece 130, and the outlet sleeve is a copper rod wrapped by epoxy resin and corresponds to a conducting wire.

Referring to fig. 3, the supporting shaft 120 is provided with a locking groove 121, the mounting portion 132 is locked in the locking groove 121, the mounting portion 132 is connected to the supporting shaft 120 by a screw, and the locking groove 121 can guide the position of the mounting portion 132 and can also make the mounting portion 132 more stably connected to the supporting shaft 120.

In some embodiments, the supporting shaft 120 is further provided with a plurality of partition plates 122, two adjacent partition plates 122 define a switch space 123, each switch space 123 is provided with a clamping groove 121, and the provided partition plates 122 can increase the creepage distance and avoid the conduction between the two connecting pieces 130. The switching space 123 is actually a space for receiving the connecting piece 130, and the switching space 123 is because the contact rod 330 is hinged to the connecting piece 130, and the connecting piece 130 is a part of the isolating switch assembly 300.

In some embodiments, the spacer 122 includes at least two laminates 122a, a space is disposed between two adjacent laminates 122a, and air in the space between the disposed laminates 122a can serve as an insulating layer to further increase the creepage distance and better prevent conduction between the two connecting pads 130. It is understood that the partition 122 may be made of an insulating material, such as plastic, ceramic, and the like.

In some embodiments, a grounding plate 140 is further included, the grounding plate 140 is disposed on the cabinet 100, the grounding plate 140 is disposed in one-to-one correspondence with the connecting plates 130, and the grounding plate 140 is used for contacting the contact bars 330.

In some embodiments, the other end of the contact rod 330 is provided with a bayonet 331, the stationary contact 210 is configured in a card shape, one end of the stationary contact 210 close to the contact rod 330 is provided with a guide inclined surface 332, and the arranged bayonet 331 can be better clamped with the stationary contact 210, so that the stationary contact 210 is prevented from being separated from the contact rod 330 in a closing process.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A switchgear, comprising:

the cabinet body is provided with a rotating shaft and a supporting shaft, the rotating shaft is rotatably arranged on the cabinet body, and the extending directions of the rotating shaft and the supporting shaft are the same;

the vacuum circuit breaker is arranged in the cabinet body, and a fixed contact is arranged at the lower end of the vacuum circuit breaker;

the isolation switch assembly is arranged in the cabinet body and is arranged below the vacuum circuit breaker and comprises a connecting sleeve, a driving rod and a contact rod, the connecting sleeve is sleeved on the rotating shaft, one end of the driving rod is hinged to the connecting sleeve, the other end of the driving rod is hinged to the middle of the contact rod, one end of the contact rod is hinged to the supporting shaft, the other end of the contact rod is used for contacting the static contact, the driving rod is arranged to be arc-shaped, and the arc-shaped arch part of the driving rod is arranged upwards.

2. A switchgear cabinet according to claim 1, characterized in that: the rotating shaft is arranged in a hexagonal prism shape, the connecting sleeve is sleeved on the rotating shaft in a matching mode, and the rotating shaft rotates to drive the connecting sleeve to rotate.

3. A switchgear cabinet according to claim 1, characterized in that: the isolating switch assembly is provided with a plurality of sets which are arranged along the axial direction of the rotating shaft, and the vacuum circuit breakers and the isolating switch assembly are arranged in a one-to-one correspondence mode.

4. A switchgear cabinet according to any of claims 1 to 3, characterized in that: the connecting piece is arranged on the supporting shaft and corresponds to the contact rods one to one, the connecting piece comprises a hinge portion and an installation portion, the installation portion is installed on the supporting shaft, and the hinge portion is hinged to one end of each contact rod.

5. A switchgear cabinet according to claim 4, characterized in that: the supporting shaft is provided with a clamping groove, the mounting portion is clamped in the clamping groove, and the mounting portion is connected to the supporting shaft through screws.

6. A switchgear cabinet according to claim 5, characterized in that: the supporting shaft is further provided with a plurality of clapboards, two adjacent clapboards limit a switch space, and each switch space is internally provided with the clamping groove.

7. A switchgear cabinet according to claim 6, characterized in that: the partition plate comprises at least two laminated plates, and a space is arranged between every two adjacent laminated plates.

8. A switchgear cabinet according to claim 7, characterized in that: still include the grounding lug, the grounding lug sets up on the cabinet body, the grounding lug with the connection piece one-to-one sets up, the grounding lug is used for contacting the contact lever.

9. A switchgear cabinet according to claim 1, characterized in that: the other end of the contact rod is provided with a bayonet, the static contact is in a card shape, and one end of the static contact, which is close to the contact rod, is provided with a guide inclined plane.