CN218827992U

CN218827992U - Low-voltage distribution switch system

Info

Publication number: CN218827992U
Application number: CN202223029200.9U
Authority: CN
Inventors: 任广民; 王泉城
Original assignee: Xuchang Huayuantai Electrical Technology Co ltd
Current assignee: Xuchang Huayuantai Electrical Technology Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-04-07
Anticipated expiration: 2032-11-15

Abstract

The utility model relates to a low voltage distribution switch system, including the generating line, the generating line passes through insulating support to be fixed on the switching conductor, and the switching conductor is installed on the keysets corresponding switching inslot, keysets upper portion is connected with the conducting rod through the B screw, and the keysets rear side is provided with the insulation cover plate, and insulation cover plate upper portion and lower part are respectively through conducting rod and D screw fixed connection, and the integrative plastic shell switch mounting panel that installs on the insulation cover plate; the switch system has the advantages of compact structure, small occupied space, low manufacturing cost, safety and reliability.

Description

Low-voltage distribution switch system

Technical Field

The utility model relates to an electric power system power transmission and distribution technical field, a low-voltage distribution switch system specifically says so.

Background

The common low-voltage distribution equipment, especially the box-type substation, generally adopts the switch cabinet type of GGD, MNS, GCS, GCK, etc., and has the following disadvantages:

(1) The switch cabinet has larger volume and high cost, wastes a large amount of copper bars and precious land resources, and increases the appearance of a box-type substation adopting the equipment and the occupied area due to the large volume of the switch cabinet, thereby further increasing the cost;

(2) Yet another significant disadvantage is that it is difficult to extend the power distribution circuit at a later date.

Another low-voltage power distribution mode in the market is to use a wiener bus system, which has the following disadvantages:

(1) The copper bus and the bus adapter are expensive;

(2) The adapter is made of plastic, so that the strength is low and the adapter cannot resist high temperature; when the current is large, the heating of the conductor can cause the plastic part of the whole bus adapter to become soft; because the intensity of plastics itself is low for installation and the conductor fixture's on the plastic body clamping force receive the restriction, and when plastics become soft because of the heat, the centre gripping reliability of conductor reduces, and contact resistance increases, thereby it is more serious to generate heat, until serious trouble such as being qualified for the next round of competitions short circuit.

In view of the above, there is a need for a new type of low voltage power distribution system that solves the above mentioned problems and drawbacks.

Disclosure of Invention

The utility model aims to overcome the defect that describes in the background art to realize a low pressure distribution switch system, this switch system has compact structure, occupation space is little, low in manufacturing cost and safe and reliable's advantage.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that: the utility model provides a low voltage distribution switch system, includes the generating line, the generating line passes through insulating support to be fixed on the switching conductor, and the switching conductor is installed on the keysets in the switching inslot that corresponds, keysets upper portion is passed through B screw and is connected with the conducting rod, and the keysets rear side is provided with insulating cover plate, and insulating cover plate upper portion and lower part are respectively through conducting rod and D screw fixed connection, and the last an organic whole of insulating cover plate is installed and is moulded the casing switch mounting panel.

Furthermore, the bus is a T-shaped copper bar, the bus comprises an A-phase bus, a B-phase bus and a C-phase bus, and the adapter plate is connected to the A-phase bus, the B-phase bus and the C-phase bus in a hanging manner through the A-bus clamping plate, the B-bus clamping plate and the C-bus clamping plate.

Furthermore, the C screw comprises a C1 screw, a C2 screw and a C3 screw, the switching conductor comprises an A-phase switching conductor, a B-phase switching conductor and a C-phase switching conductor, and the A-phase bus, the B-phase bus and the C-phase bus are fixedly connected with the A-phase switching conductor, the B-phase switching conductor and the C-phase switching conductor through the C1 screw, the C2 screw and the C3 screw respectively.

Furthermore, the B screw comprises a B1 screw, a B2 screw and a B3 screw, and the A-phase switching conductor, the B-phase switching conductor and the C-phase switching conductor are respectively installed in corresponding grooves of the adapter plate through the B1 screw, the B2 screw, the B3 screw and a matched screw nut pair.

Furthermore, the tail end of the conductive rod is fixedly connected with the wire inlet end of the molded case circuit breaker through the screw A, and the molded case circuit breaker is fixedly connected with the corresponding threaded hole in the molded case switch mounting plate through the lower mounting hole.

The utility model discloses a low-voltage distribution electric switch system's beneficial effect:

the utility model discloses a low voltage distribution switch system, the main bus adopts common T type copper bar, and T type copper bar is fixed by generating line insulating support, and the keysets passes through fixture to be fixed on T type copper bar, and fixture compresses tightly the conductor on the keysets on the T type copper bar simultaneously, and the structure closely cooperates each other, has reduced the quantity of part, has practiced thrift manufacturing cost, has reduced the space simultaneously and has taken up;

the utility model discloses a low pressure distribution switch system, keysets are made by DMC or epoxy material, have that intensity is high, the heat resistance is good, insulating properties is excellent, with low costs, easily expanded advantage.

Drawings

Fig. 1 is a schematic structural diagram of the low-voltage distribution switch system of the present invention;

FIG. 2 isbase:Sub>A schematic cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic cross-sectional view B-B of FIG. 1;

FIG. 4 is a schematic cross-sectional view C-C of FIG. 1;

in the figure: 1-molded case circuit breaker, 2.1-A1 screw, 2.2-A2 screw, 2.3-A3 screw, 3.1-a conductive rod, 3.2-B conductive rod, 3.3-C conductive rod, 4-insulating cover plate, 5-adapter plate, 6-a phase adapter conductor, 7.1-B1 screw, 7.2-B2 screw, 7.3-B3 screw, 8.1-a bus bar clamp, 8.2-B bus bar clamp, 8.3-C bus bar clamp, 9.1-C1 screw, 9.2-C2 screw, 9.3-C3 screw, 10-a phase bus bar, 11.1-a screw nut pair, 11.2-B screw nut pair, 11.3-C screw nut pair, 12-molded case switch mounting plate, 13-D, 14-inlay nut, 15-B phase adapter conductor, 16-B phase bus bar, 17-C phase adapter conductor, 18-C phase bus bar support, 19-insulating bus bar support.

Detailed Description

The low-voltage distribution switch system of the present invention will be described in more detail by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, the low-voltage distribution switch system of the present embodiment has the advantages of compact structure, small occupied space, low manufacturing cost, safety and reliability, and mainly includes an a-phase bus 10, a B-phase bus 16 and a C-phase bus 18, all of which adopt T-shaped copper bars fixed by two or more bus insulation supports 19; the phase A switching conductor 6, the phase B switching conductor 15 and the phase C switching conductor 17 are respectively installed in corresponding grooves of the switching plate 5 through a B1 screw 7.1 and a screw and nut pair 11.1, a B2 screw 7.2 and a screw and nut pair 11.2, a B3 screw 7.3 and a screw and nut pair 11.3;

meanwhile, the B1 screw 7.1, the B2 screw 7.2 and the B3 screw 7.3 are respectively screwed into the threaded holes of the A conductive rod 3.1, the B conductive rod 3.2 and the C conductive rod 3.3, so that the conductive rods of the A, B, C three-phase bus are respectively and reliably connected with the A phase switching conductor 6, the B phase switching conductor 15 and the C phase switching conductor 17; the insulating cover plate 4 is positioned and installed on the adapter plate 5 through the A conductive rod 3.1, the B conductive rod 3.2, the C conductive rod 3.3 and the D screw 13, and the embedded nut 14 on the adapter plate 5 is used for installing the insulating cover plate 4;

the adapter plate 5 is hung on three T-shaped copper bars through three bus clamping plates 8.1, 8.2 and 8.3, the C1 screw 9.1, the C2 screw 9.2 and the C3 screw 9.3 are respectively screwed down, so that the A-phase adapter conductor 6, the B-phase adapter conductor 15 and the C-phase adapter conductor 17 can be respectively pressed against the corresponding T-shaped copper bars, and the adapter plate 5 is firmly fixed on the T-shaped copper bars;

the moulded case switch mounting panel 12 is integrative with insulating cover plate 4, and both ends all have the wiring end about the moulded case circuit breaker 1, and there are four mounting holes, and the upper end is two, and the lower extreme is two, and the inlet wire end of the 1 upper end of moulded case circuit breaker is fixed on A conducting rod 3.1, B conducting rod 3.2, C conducting rod 3.3 through A1 screw 2.1, A2 screw 2.2, A3 screw 2.3 respectively, and the corresponding screw hole on 1 lower extreme mounting hole of moulded case circuit breaker and the moulded case switch mounting panel 12 is in the same place by standard screw connection.

Taking phase a as an example, and setting a molded case circuit breaker 1 to be switched on, the path for transmitting electric energy is as follows: phase a bus bar 10 → conductor bar 3.1 → molded case circuit breaker 1 upper terminal → molded case circuit breaker 1 inner loop to lower terminal.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, whether direct or indirect.

The exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the specific embodiments without departing from the concept of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention.

Claims

1. The utility model provides a low pressure distribution switch system, includes the generating line, its characterized in that: the bus is fixed on the switching conductor through an insulating support, the switching conductor is installed in a corresponding switching groove on the switching plate, the upper portion of the switching plate is connected with the conductive rod through a B screw, an insulating cover plate is arranged on the rear side of the switching plate, the upper portion and the lower portion of the insulating cover plate are fixedly connected through the conductive rod and a D screw respectively, and a plastic shell switch installation plate is integrally installed on the insulating cover plate.

2. A low-voltage electrical switching system according to claim 1 wherein: the bus is a T-shaped copper bar, the bus comprises an A-phase bus, a B-phase bus and a C-phase bus, and the adapter plate is connected to the A-phase bus, the B-phase bus and the C-phase bus in a hanging mode through the A-phase bus clamping plate, the B-phase bus clamping plate and the C-phase bus clamping plate.

3. A low-voltage distribution electric switch system according to claim 2, characterized in that: the C screw comprises a C1 screw, a C2 screw and a C3 screw, the switching conductor comprises an A-phase switching conductor, a B-phase switching conductor and a C-phase switching conductor, and the A-phase bus, the B-phase bus and the C-phase bus are fixedly connected with the A-phase switching conductor, the B-phase switching conductor and the C-phase switching conductor through the C1 screw, the C2 screw and the C3 screw respectively.

4. A low-voltage electrical switching system according to claim 1 wherein: the B screw comprises a B1 screw, a B2 screw and a B3 screw, and the A-phase switching conductor, the B-phase switching conductor and the C-phase switching conductor are respectively installed in corresponding grooves of the switching plate through the B1 screw, the B2 screw, the B3 screw and matched screw and nut pairs.

5. A low-voltage electrical switching system according to claim 1 wherein: the tail end of the conductive rod is fixedly connected with the wire inlet end of the molded case circuit breaker through the A screw, and the molded case circuit breaker is fixedly connected with a corresponding threaded hole in the molded case switch mounting plate through a lower mounting hole.