CN215497561U

CN215497561U - Extensible insulated closed switch cabinet

Info

Publication number: CN215497561U
Application number: CN202121872535.XU
Authority: CN
Inventors: 黄鸿全
Original assignee: Shanwei Yi Kai Electrical Equipment Co ltd
Current assignee: Shanwei Yi Kai Electrical Equipment Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-01-11
Anticipated expiration: 2031-08-11

Abstract

The utility model relates to the technical field of electrical equipment, in particular to an expandable insulated closed switch cabinet, which comprises side-by-side cabinet bodies and an expanded connector connected with the adjacent cabinet bodies, wherein a wire outlet is formed in the side edge of each cabinet body, a bus contact is arranged in each wire outlet, the expanded connector comprises a shell, an expansion mechanism and an expanded structure are arranged in the shell, the expanded structure is provided with two connecting contacts for keeping electrical conduction, the two connecting contacts can be far away from or close to each other under the action of the expansion mechanism, and through holes for the connecting contacts to extend out are formed in the two sides of the shell; the utility model has the special expanded connector, simple structure and wide application range.

Description

Extensible insulated closed switch cabinet

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to an expandable insulated closed switch cabinet.

Background

The switch cabinet is an electric device, the external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch circuit is arranged according to the requirement. Such as meters, automatic controls, magnetic switches of motors, various alternating current contactors, and the like, some of which are also provided with high-voltage chambers and low-voltage chamber switch cabinets, and high-voltage buses, such as power plants, and some of which are also provided with low-frequency load shedding for keeping main equipment. The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. The classification methods of the switch cabinets are various, for example, the switch cabinets can be divided into movable switch cabinets and fixed switch cabinets by the installation mode of the circuit breaker; or according to different cabinet body structures, the cabinet body can be divided into an open type switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; the high-voltage switch cabinet, the medium-voltage switch cabinet, the low-voltage switch cabinet and the like can be divided according to different voltage grades. The method is mainly suitable for various occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industrial textile, industrial and mining enterprises, residential districts, high-rise buildings and the like.

When the switch cabinet is used, a plurality of switch cabinets are often arranged side by side, and the switch cabinet is used in a combined manner, and a bus chamber with a special structure needs to be specially designed to realize expansion, so that the structure is complex and the cost is high.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to overcome the defects in the prior art, and provides an expandable insulated switchgear with a special expanding connector, which has a simple structure and a wide application range.

The expandable insulated closed switch cabinet comprises side-by-side cabinet bodies and an expansion connector connected with the adjacent cabinet bodies, wherein wire outlet holes are formed in the side edges of the cabinet bodies, bus contacts are arranged in the wire outlet holes, the expansion connector comprises a shell, an expansion mechanism and an expansion structure are arranged in the shell, the expansion structure is provided with two connecting contacts which are electrically conducted, the two connecting contacts can be far away from or close to each other under the action of the expansion mechanism, and through holes for the connecting contacts to extend out are formed in the two sides of the shell.

Further, the expansion mechanism comprises a bidirectional screw, two connecting pieces and two pairs of connecting arms, wherein the two connecting pieces are arranged on two sides of the bidirectional screw in a split mode, nut seats are arranged at the front axial position and the rear axial position of the bidirectional screw, the bidirectional screw is rotatably connected with the shell and keeps the axial relative position constant, the two pairs of connecting arms form a roughly rhombic structure by taking the two connecting pieces and the two nut seats as connecting points, so that the two connecting pieces can move towards or away from each other, and the connecting contacts are arranged on the connecting pieces.

Furthermore, the expanding structure further comprises a telescopic structure electrically connected with the two connecting contacts.

Furthermore, the telescopic structure comprises a transversely arranged conducting rod, the conducting rod is fixed in the axial direction, the rear end of the connecting contact is of a sleeve structure, an elastic contact finger is arranged in a central shaft hole of the sleeve structure, and the connecting contact and the conducting rod are coaxially arranged.

Further, extending structure is including rotating the electric piece and connecting the electric piece, protruding formation insulating seat in the casing, the middle part of rotating the electric piece is rotated and is connected on the insulating seat, the both ends of connecting the electric piece are pivot connection respectively connect the contact with rotate the electric piece.

Furthermore, a semi-closed mounting groove is formed in the side portion of the cabinet body, the wire outlet hole is formed in the inner side of the mounting groove, and the expansion connector is contained in the mounting groove and fixed through a threaded piece.

The utility model has the beneficial effects that: the expandable insulated closed switch cabinet disclosed by the utility model is expanded by connecting buses in parallel cabinet bodies through the expansion connector, the expansion connector comprises an expansion structure and an expansion structure with two connecting contacts, the two connecting contacts can be mutually far away or close under the action of the expansion mechanism, the connection and the separation of the buses in the cabinet bodies on two sides can be realized, the operation is simple, and the expansibility is strong.

Drawings

The utility model is further described below with reference to the following figures and examples:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the extended connector of the present invention;

FIG. 3 is a schematic view of the internal structure of the expanding connector of the present invention;

fig. 4 is a schematic structural diagram of an extended connector according to another embodiment of the present invention.

Description of reference numerals: the cabinet body 1, the wire outlet hole 11, the mounting groove 12, the expansion connector 2, the shell 21, the expansion mechanism 22, the bidirectional screw 221, the connecting piece 222, the connecting arm 223, the nut seat 224, the connecting contact 23, the conductive rod 24, the elastic contact finger 25, the rotating electric piece 26, the connecting electric piece 27 and the insulating seat 28.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, in the embodiment, the expandable insulated closed switch cabinet includes side-by-side cabinet bodies 1 and an expanded connector 2 connected to adjacent cabinet bodies 1, a semi-closed installation groove 12 is disposed on a side portion of each cabinet body 1, the expanded connector 2 is accommodated in the installation groove 12 and fixed by a screw, a wire outlet 11 is disposed on a side of each cabinet body 1 on an inner side of the installation groove 12, a bus contact is disposed in the wire outlet 11 and connected to a bus in the cabinet body 1, the expanded connector 2 includes a housing 21, the housing 21 is preferably made of an insulating material, a flange for connecting to the cabinet body 1 is disposed on the housing 21, an expansion mechanism 22 and an expansion structure are disposed in the housing 21, the expansion structure has two connection contacts 23 that are electrically conducted, and the two connection contacts 23 can be away from or close to each other under the action of the expansion mechanism 22, through holes for the connection contacts 23 to extend out are formed in two sides of the housing 21.

In the actual implementation process, earlier two solid cabinet combinations, the mounting groove 12 combination of two cabinet body 1 sides forms the recess that holds the extension connector completely, installs the extension connector in the recess to it is fixed, directly operates the connection contact 23 outwards motion that expansion mechanism 22 drove both sides, stretches into in the wire hole 11 that the cabinet body 1 of both sides corresponds, is connected with the generating line contact, reverse operation during the maintenance can, therefore operation process is very simple.

In this embodiment, the expanding mechanism 22 includes a bidirectional screw 221, two connecting members 222 arranged on two sides of the bidirectional screw 221, and two pairs of connecting arms 223, wherein nut seats 224 are arranged at axial positions of the bidirectional screw 221, and it is known that the nut seats 224 are arranged on different thread sections, the bidirectional screw 221 is rotatably connected to the housing 21 and keeps a relative position in an axial direction constant, the two nut seats 224 approach or separate from each other when the bidirectional screw 221 is rotated, the two pairs of connecting arms 223 form a substantially diamond-shaped structure with the two connecting members 222 and the two nut seats 224 as connecting points, the two connecting members 222 can move toward or away from each other when the nut seats 224 separate from or approach each other, and the connecting contacts 23 are arranged on the connecting members 222. In this embodiment, the connecting member 222 is a plate-shaped structure made of an insulating material. In this embodiment, one end of the bidirectional screw 221 extends out of the housing 21, and preferably, the bidirectional screw 221 extends toward the rear of the housing 21, so that a worker can operate the expanding mechanism 22 from the rear when performing maintenance.

In this embodiment, the expanding structure further includes a telescopic structure electrically connected to the two connecting contacts 23, and is used to maintain the electrical connection between the two connecting contacts 23 during the lateral movement.

Specifically, the telescopic structure comprises a transversely arranged conducting rod 24, the conducting rod 24 is axially fixed, the rear end of the connecting contact 23 is of a sleeve structure, an elastic contact finger 25 is arranged in a central shaft hole of the sleeve structure and is always kept in precise connection with the conducting rod 24, and the connecting contact 23 and the conducting rod 24 are coaxially arranged.

In another embodiment, as shown in fig. 4, the telescopic structure includes a rotating electric piece 26 and a connecting electric piece 27, an insulating seat 28 is formed by protruding in the housing 21, the middle of the rotating electric piece 26 is rotatably connected to the insulating seat 28, and two ends of the connecting electric piece 27 are respectively pivotally connected to the connecting contact 23 and the rotating electric piece 26.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides an insulating closed switch cabinet that can expand which characterized in that: including the cabinet body side by side and connect adjacently the expansion connector of the cabinet body, the wire hole has been seted up to the side of the cabinet body, be provided with the bus contact in the wire hole, it includes the casing to expand the connector, be provided with expanding mechanism and expanding structure in the casing, expanding structure has two connecting contacts that keep the electrical property on, and two connecting contacts can keep away from each other or be close to under expanding mechanism's effect, the confession has been seted up to the both sides of casing connecting contact stretched out the via hole.

2. A scalable insulated switchgear cabinet according to claim 1, wherein: the expansion mechanism comprises a bidirectional screw, two connecting pieces and two pairs of connecting arms, wherein the two connecting pieces are respectively arranged on two sides of the bidirectional screw, nut seats are arranged at the front axial position and the rear axial position of the bidirectional screw, the bidirectional screw is rotationally connected with the shell and keeps the axial relative position constant, the two pairs of connecting arms form a roughly rhombic structure by taking the two connecting pieces and the two nut seats as connecting points, so that the two connecting pieces can move towards or away from each other, and the connecting contacts are arranged on the connecting pieces.

3. A scalable insulated switchgear cabinet according to claim 2, wherein: the expansion structure further comprises a telescopic structure electrically connected with the two connecting contacts.

4. A scalable insulated switchgear cabinet according to claim 3, wherein: the telescopic structure comprises a transversely arranged conducting rod, the conducting rod is fixed in the axial direction, the rear end of the connecting contact is of a sleeve structure, an elastic contact finger is arranged in a central shaft hole of the sleeve structure, and the connecting contact and the conducting rod are coaxially arranged.

5. A scalable insulated switchgear cabinet according to claim 3, wherein: the telescopic structure is including rotating the electric piece and connecting the electric piece, protruding formation insulating seat in the casing, the middle part of rotating the electric piece is rotated and is connected on the insulating seat, the both ends of connecting the electric piece are pivot connection respectively connect the contact with rotate the electric piece.

6. A scalable insulated switchgear cabinet according to claim 1, wherein: the side part of the cabinet body is provided with a semi-closed mounting groove, the wire outlet hole is formed in the inner side of the mounting groove, and the expansion connector is contained in the mounting groove and fixed through a threaded piece.