CN219918046U - Switch cabinet - Google Patents

Abstract

The embodiment of the utility model provides a switch cabinet, and relates to the technical field of switch cabinets. The switch cabinet comprises a cabinet body, a rack and a breaker, wherein the rack is arranged on the cabinet body, the breaker is detachably arranged on the rack, and the breaker can be detachably arranged on the rack and is arranged on the cabinet body through the rack.

Description

Switch cabinet

Technical Field

The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet.

Background

The switch cabinet is an electrical device, the external line of the switch cabinet firstly enters the main control switch in the cabinet, then enters the sub-control switch, and each shunt is arranged according to the requirement. Such as meters, automatic control, motor magnetic switches, various ac contactors, etc., and high-voltage and low-voltage switchgear, high-voltage buses, such as power plants, etc., and low-cycle relief for protecting major equipment.

The switch cabinet is used for opening and closing, controlling and protecting electric equipment in the process of generating, transmitting, distributing and converting electric energy of the electric power system, and various circuit control devices are installed in the switch cabinet. The components in the switch cabinet mainly comprise a breaker, a disconnecting switch, a load switch, an operating mechanism, a transformer, various protection devices and the like.

In the prior art, a breaker in a switch cabinet is fixedly arranged in a cabinet body of the switch cabinet by adopting a fastener (such as a screw or a bolt), and when the switch cabinet is required to be maintained or modified on site, the breaker is difficult to detach, so that the maintenance efficiency of the switch cabinet and the field modification efficiency are reduced.

Disclosure of Invention

The utility model provides a switch cabinet, which can improve the maintenance efficiency of the switch cabinet and the field reconstruction efficiency.

Embodiments of the utility model may be implemented as follows:

the utility model provides a switch cabinet, comprising:

a cabinet body;

the rack is arranged on the cabinet body; and

and the circuit breaker is detachably arranged on the rack.

In an alternative embodiment, the number of the circuit breakers is a plurality, and the plurality of the circuit breakers are sequentially arranged along the straight line direction.

In an alternative embodiment, the frame includes a load-bearing bottom shell and an upper cover, the upper cover covers the load-bearing bottom shell, the upper cover and the load-bearing bottom shell together define an installation cavity, and the circuit breaker is detachably installed in the installation cavity.

In an alternative embodiment, the bearing bottom shell includes a bottom plate, a first side plate and a second side plate, the bottom plate is a rectangular plate body, and the first side plate and the second side plate are vertically installed on two opposite sides of the bottom plate.

In an alternative embodiment, the upper cover is a rectangular plate.

In an alternative embodiment, the rack further comprises a rear cover, wherein the rear cover is provided with a conducting bar through hole, and the conducting bar through hole is used for being penetrated by a conducting bar;

the bearing bottom shell and the upper cover are connected with the rear cover, or the bearing bottom shell or the upper cover is connected with the rear cover.

In an alternative embodiment, the frame further comprises a front cover, wherein the front cover is provided with a mounting hole, and the circuit breaker is arranged in the mounting hole in a penetrating manner.

The bearing bottom shell and the upper cover are connected with the front cover, or the bearing bottom shell or the upper cover is connected with the front cover.

In an alternative embodiment, the switch cabinet comprises a conductive bar, the conductive bar penetrates through the conductive bar through hole, and the conductive bar is connected with the circuit breaker.

In an alternative embodiment, the circuit breaker is a plug-in circuit breaker.

In an alternative embodiment, the frame is fixedly mounted to the cabinet.

The switch cabinet provided by the embodiment of the utility model has the beneficial effects that:

the utility model provides a switch cabinet, which comprises a cabinet body, a rack and a breaker, wherein the rack is arranged on the cabinet body, the breaker is detachably arranged on the rack, and the breaker can be detachably arranged on the rack and is arranged on the cabinet body through the rack.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a circuit breaker provided in an embodiment of the present utility model mounted on a rack;

fig. 2 is an exploded view of a rack provided in an embodiment of the present utility model.

Icon: 100-frames; 110-a load-bearing bottom shell; 111-a bottom plate; 112-a first side plate; 113-a second side panel; 120-upper cover; 130-a rear cover; 131-conducting bar through holes; 140-front cover; 141-mounting holes; 200-a circuit breaker; 300-conductive bars.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

As mentioned in the background art, the switch cabinet is used for opening and closing, controlling and protecting electric equipment in the process of generating, transmitting, distributing and converting electric energy of the electric power system, and various circuit control devices are installed in the switch cabinet.

Specifically, the switch cabinet is an electrical device, the external line of the switch cabinet firstly enters the main control switch in the cabinet, then enters the sub-control switch, and all the branches are arranged according to the requirements. Such as meters, automatic control, motor magnetic switches, various ac contactors, etc., and high-voltage and low-voltage switchgear, high-voltage buses, such as power plants, etc., and low-cycle relief for protecting major equipment.

The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of generating, transmitting, distributing and converting electric energy of the electric power system.

The components in the switch cabinet mainly comprise a breaker, a disconnecting switch, a load switch, an operating mechanism, a transformer, various protection devices and the like. The switch cabinets are classified into a movable switch cabinet and a fixed switch cabinet according to the installation mode of the circuit breaker; or according to the different cabinet structures, the switch cabinet can be divided into an open switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; according to different voltage levels, the high-voltage switch cabinet, the medium-voltage switch cabinet, the low-voltage switch cabinet and the like can be further divided.

The method is mainly suitable for various different occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industry textile, factories and mining enterprises, residential communities, high-rise buildings and the like.

The circuit breaker is a switching device capable of closing, carrying and breaking a current under normal circuit conditions and closing, carrying and breaking a current under abnormal circuit conditions within a prescribed time. The circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, and the division of a high-voltage boundary line and a low-voltage boundary line is fuzzy, and is generally called as a high-voltage electrical appliance with the voltage of more than 3 kV.

The circuit breaker can be used for distributing electric energy, starting the asynchronous motor infrequently, protecting a power line, the motor and the like, and automatically cutting off the circuit when serious overload or short circuit, undervoltage and other faults occur, and the functions of the circuit breaker are equivalent to the combination of a fuse type switch, an over-under-heating relay and the like. And the parts are not required to be changed after breaking the fault current.

In the prior art, a breaker in a switch cabinet is fixedly arranged in a cabinet body of the switch cabinet by adopting a fastener, such as a screw or a bolt, and is difficult to detach when the switch cabinet is required to be maintained or modified on site, so that the maintenance efficiency of the switch cabinet and the site modification efficiency are reduced.

Specifically, the power supply switch suitable for the switch cabinet with multiple loops and small current in the prior art mainly selects a common miniature circuit breaker and fastens the common miniature circuit breaker on the cabinet body through a screw or a bolt, but when the switch cabinet is required to be maintained or modified on site, the circuit breaker is difficult to detach, and the maintenance efficiency of the switch cabinet and the field modification efficiency are reduced.

Meanwhile, the installation structure occupies large space, and a 200mm unit loop can only be installed with 9 common miniature circuit breakers, and the 200mm unit loop can be understood as a drawer with the height of 200mm.

And the problems of crowded circuit and poor heat dissipation exist, the burning is easy, the safety and the reliability are not high, and when the miniature circuit breaker is produced and manufactured in workshops, the installation workload of the miniature circuit breaker is large, the cable wiring is tedious, and the efficiency is not high.

In view of this, please refer to fig. 1 and 2, the switch cabinet provided in the embodiment of the present utility model can solve this problem, and will be described in detail below.

The utility model provides a switch cabinet, which comprises a cabinet body (not shown), a rack 100 and a circuit breaker 200, wherein the rack 100 is arranged on the cabinet body, and the circuit breaker 200 is detachably arranged on the rack 100.

Because the circuit breaker 200 can be detachably installed on the rack 100, and is installed on the cabinet body through the rack 100, when the switch cabinet is required to be maintained or the field is improved, the circuit breaker 200 is convenient to detach and install, and the maintenance efficiency of the switch cabinet and the field improvement efficiency are improved.

In order to facilitate the disassembly and assembly of the circuit breaker 200, in this embodiment, the circuit breaker 200 is a plug-in circuit breaker, for example, an industrial plug-in circuit breaker, and may specifically be an industrial intelligent circuit breaker in the prior art, so as to improve the intelligent degree of the switch cabinet, and the industrial intelligent circuit breaker may implement intelligent functions of detection, protection, control, communication, and the like of the switch.

For example, the circuit breaker 200 has a buckle, and a buckle hole is formed in the upper cover 120 (described in detail below) of the frame 100, and the buckle is matched with the buckle hole to mount the circuit breaker 200, and the buckle is separated from the buckle hole to detach the circuit breaker 200.

In order to improve the stability of the rack 100, the rack 100 may be fixedly mounted on the cabinet by screws or bolts, and the circuit breaker 200 may be directly detached from the rack 100 or mounted to the rack 100, so as to facilitate the detachment and installation of the circuit breaker 200 during the maintenance or field reconstruction of the switchgear.

In the present embodiment, the number of the circuit breakers 200 is plural, the plural circuit breakers 200 are sequentially arranged in the straight line direction, and the adjacent circuit breakers 200 are distributed in parallel, and the circuit breakers are replaced with industrial plug-in circuit breakers from the ordinary miniature circuit breakers, and in the unit circuit of the same volume, more circuit breakers 200 can be installed, for example, in the present embodiment, the number of the circuit breakers 200 is eighteen.

In this embodiment, the rack 100 includes a bottom carrier shell 110 and an upper cover 120, the upper cover 120 is covered on the bottom carrier shell 110, the upper cover 120 and the bottom carrier shell 110 together define a mounting cavity, each circuit breaker 200 is detachably mounted in the mounting cavity, where, not the whole circuit breaker 200 is located in the mounting cavity, and part of the structure of the circuit breaker 200 is located outside the mounting cavity.

The bottom chassis 110 includes a bottom plate 111, a first side plate 112 and a second side plate 113, the bottom plate 111 is a rectangular plate body, the first side plate 112 and the second side plate 113 are vertically installed on two opposite sides of the bottom plate 111, in this embodiment, the bottom plate 111, the first side plate 112 and the second side plate 113 may be integrally formed, and meanwhile, the upper cover 120 is also a rectangular plate body.

Meanwhile, in order to avoid the problems of line crowding, poor heat dissipation and complicated cable connection, which results in low installation efficiency of the circuit breaker 200, in this embodiment, the switch cabinet includes a conductive bar 300, the conductive bar 300 is a copper bar, and the conductive bar 300 is connected with the circuit breaker 200 by the copper bar to replace a cable in the prior art. The conductive strip 300 is disposed through the conductive strip through hole 131 (described in detail below).

In addition, the rack 100 further includes a rear cover 130, the rear cover 130 is provided with a conductive bar through hole 131, the conductive bar through hole 131 is a rectangular through hole, and the conductive bar through hole 131 is penetrated by the conductive bar 300.

In this embodiment, the bottom case 110 and the top cover 120 are both connected to the rear cover 130, however, in other embodiments, the bottom case 110 or the top cover 120 may be connected to the rear cover 130.

In addition, the rack 100 further includes a front cover 140, the front cover 140 is provided with a plurality of mounting holes 141, the circuit breakers 200 are arranged in the mounting holes 141 in a penetrating manner, specifically, in this embodiment, the number of the mounting holes 141 is six, each mounting hole 141 corresponds to three circuit breakers 200, that is, each three circuit breakers 200 is arranged in one mounting hole 141 in a penetrating manner at the same time, so that the three circuit breakers 200 are divided into a group, and when the circuit breakers 200 need to be detached or installed, the circuit breakers 200 can pass through the mounting holes 141.

In this embodiment, the bottom carrier housing 110 and the top cover 120 are both connected to the front cover 140, however, in other embodiments, the bottom carrier housing 110 or the top cover 120 may be connected to the front cover 140.

In summary, the utility model provides a switch cabinet, which comprises a cabinet body, a rack 100 and a breaker 200, wherein the rack 100 is installed on the cabinet body, the breaker 200 is detachably installed on the rack 100, and the breaker 200 is convenient to detach and install when the switch cabinet is required to be maintained or field transformed due to the fact that the breaker 200 can be detachably installed on the rack 100 and is installed on the cabinet body through the rack 100, and the maintenance efficiency and the field transformation efficiency of the switch cabinet are improved.

Meanwhile, the copper bars are used for replacing cables in the prior art, fewer cables are arranged in the switch cabinet, the overall reliability of the product is improved, the equipment failure rate is reduced, the operation and maintenance efficiency is improved, the operation intensity of maintenance personnel is reduced, and the combination of the rack 100 and the plug-in circuit breaker 200 is adopted, so that the standardization is improved, and the on-site replacement and transformation are convenient and quick.

The present utility model is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (9)

1. A switchgear comprising:

a cabinet body;

the rack (100), the said rack (100) is installed to the cabinet body; and

a circuit breaker (200), the circuit breaker (200) being detachably mounted to the chassis (100);

the frame (100) comprises a bearing bottom shell (110) and an upper cover (120), the upper cover (120) covers the bearing bottom shell (110), the upper cover (120) and the bearing bottom shell (110) jointly define an installation inner cavity, and the circuit breaker (200) is detachably installed in the installation inner cavity.

2. The switchgear according to claim 1, characterized in that the number of circuit breakers (200) is plural, a plurality of circuit breakers (200) being arranged in sequence in a straight direction.

3. The switch cabinet according to claim 1, wherein the load-bearing bottom case (110) comprises a bottom plate (111), a first side plate (112) and a second side plate (113), the bottom plate (111) is a rectangular plate body, and the first side plate (112) and the second side plate (113) are vertically installed on two opposite sides of the bottom plate (111).

4. The switchgear according to claim 1, characterized in that the upper cover (120) is a rectangular plate.

5. The switchgear according to claim 1, characterized in that the rack (100) further comprises a rear cover (130), the rear cover (130) being provided with a busbar through hole (131), the busbar through hole (131) being intended to be pierced by a busbar (300);

wherein, the bearing bottom shell (110) and the upper cover (120) are connected with the rear cover (130), or the bearing bottom shell (110) or the upper cover (120) is connected with the rear cover (130).

6. The switchgear according to claim 5, characterized in that it comprises a conductive strip (300), said conductive strip (300) being arranged through said conductive strip through hole (131), said conductive strip (300) being connected to said circuit breaker (200).

7. The switch cabinet according to claim 5, wherein the rack (100) further comprises a front cover (140), a mounting hole (141) is formed in the front cover (140), and the circuit breaker (200) is penetrated through the mounting hole (141);

wherein, the bearing bottom shell (110) and the upper cover (120) are connected with the front cover (140), or the bearing bottom shell (110) or the upper cover (120) is connected with the front cover (140).

8. The switchgear according to claim 1, characterized in that the circuit breaker (200) is a plug-in circuit breaker.

9. The switchgear according to claim 1, characterized in that the rack (100) is fixedly mounted to the cabinet body.