CN215732841U

CN215732841U - Novel low-voltage switch cabinet

Info

Publication number: CN215732841U
Application number: CN202122163258.1U
Authority: CN
Inventors: 孙维民; 梁景彪; 关世睿; 陈哲; 李路明; 高原; 姜开宇
Original assignee: Harbin Electric Environmental Protection Co ltd
Current assignee: Harbin Electric Environmental Protection Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-02-01
Anticipated expiration: 2031-09-08

Abstract

A novel low-voltage switch cabinet belongs to the technical field of low-voltage power supply and distribution equipment of an electric power system. The utility model comprises a cabinet body formed by combining an upper part and a lower part of a fixed compartment part and a drawer unit part, wherein the cabinet body is provided with a vent hole, the rear part of the cabinet body is provided with an access rear door, and the top of the fixed compartment part is provided with an eyebrow. The drawer unit further comprises a cable compartment which is communicated with the right side of the drawer unit part. The utility model aims to solve the problems that the existing low-voltage switch cabinet loop is complex in configuration, relatively fixed in size, relatively large in occupied space of loops with the same number and relatively poor in heat dissipation performance.

Description

Novel low-voltage switch cabinet

Technical Field

The utility model relates to the technical field of low-voltage power supply and distribution equipment of an electric power system, in particular to a low-voltage switch cabinet-hybrid power cabinet.

Background

With the continuous development of the power industry, the types of low-voltage switch cabinets are also continuously changed, and the existing switch cabinets can be roughly divided into two types: one type is a fixed switch cabinet, comprising an XL21 cabinet, a GGD cabinet and other types of cabinets, and the like, and is characterized by simple structure, relatively low cost and incapability of arbitrarily combining and replacing the units; the other type is a drawer type switch cabinet, which comprises an MNS cabinet of ABB company, an 8PT cabinet of Siemens company, a B cabinet of Schneider company, a GCS cabinet, a GCK cabinet and the like.

Therefore, it is desirable to provide a novel low-voltage switch cabinet-hybrid power cabinet to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The present invention has been developed in order to solve the problems of complex circuit configuration, relatively fixed size, relatively large occupied space of the same number of circuits, and relatively poor heat dissipation performance of the existing low-voltage switch cabinet, and a brief summary of the present invention is provided below in order to provide a basic understanding of some aspects of the present invention. It should be understood that this summary is not an exhaustive overview of the utility model. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention.

The technical scheme of the utility model is as follows:

a novel low-voltage switch cabinet comprises a cabinet body formed by combining an upper part and a lower part of a fixed compartment part and a drawer unit part, wherein the cabinet body is provided with a vent hole, the rear part of the cabinet body is provided with an access rear door, and the top of the fixed compartment part is provided with an eyebrow;

the drawer unit also comprises a cable compartment which is communicated with the right side of the drawer unit part;

a fixed frame is arranged in the fixed compartment part, and a plurality of modulus holes are formed in the fixed frame;

fixed partition chamber portion installs inlet wire circuit breaker and distribution circuit feeder circuit breaker through the cooperation of modulus hole in, inlet wire circuit breaker and distribution circuit feeder circuit breaker electric connection, installs motor circuit feeder circuit breaker, contactor and thermorelay in the drawer unit portion, equal mutual electric connection between inlet wire circuit breaker and distribution circuit feeder circuit breaker, distribution circuit feeder circuit breaker and the motor circuit feeder circuit breaker, motor circuit feeder circuit breaker and contactor electric connection, contactor and thermorelay electric connection.

Preferably: the incoming line circuit breaker is connected with the distribution loop feeder circuit breaker through a copper busbar, the end part of the copper busbar is electrically connected with a vertical busbar, and the vertical busbar is connected with the motor loop feeder circuit breaker through a cable.

Preferably: and primary plug connectors are arranged on the drawer unit part and the corresponding cabinet body.

Preferably: and a current transformer is arranged between the incoming line breaker and the distribution loop feeder breaker.

Preferably: and a motor protector is arranged between the motor loop feeder circuit breaker and the contactor.

Preferably: the cabinet body is a vertical cabinet formed by splicing common cold-rolled steel plates, and the fixed frame is 8MF type steel and/or C type steel.

Preferably: the outer sides of the copper busbar and the vertical busbar are sleeved with thermoplastic tubes.

The utility model has the following beneficial effects:

1. the novel low-voltage switch cabinet is divided into a fixed compartment part and a drawer unit part, all motor loops in the system adopt a drawer unit type, and the novel low-voltage switch cabinet has the characteristics of simplicity in operation, convenience in operation and maintenance and the like;

2. according to the novel low-voltage switch cabinet, the incoming line unit and all power distribution circuits in the system are in the form of fixed compartments, the power distribution circuits are free of control elements, the fault rate is relatively low, no partition plate is arranged in each compartment, and only the installation beams and the support beams are arranged, so that the heat dissipation performance of the cabinet body is favorably improved;

3. according to the novel low-voltage switch cabinet, the upper frame is arranged on the top of the cabinet, the vent holes are formed in the bottom of the cabinet, and the rear door of the cabinet is double-opened, so that the space is saved, and the maintenance is convenient;

4. the novel low-voltage switch cabinet has various cabinet body sizes, is ingenious in design, energy-saving and efficient, is particularly suitable for small power distribution systems with insufficient or limited arrangement space, and is suitable for popularization and application;

drawings

Fig. 1 is a front view of a novel low-voltage switchgear cabinet;

FIG. 2 is a rear view of a novel low-voltage switchgear cabinet;

FIG. 3 is a component mounting layout diagram of a novel low-voltage switch cabinet;

in the figure 1-brow, 2-fixed compartment part, 3-drawer unit part, 4-cable compartment, 5-vent, 6-incoming breaker, 7-current transformer, 8-copper busbar, 9-distribution loop feeder breaker, 10-vertical busbar, 11-primary plug, 12-cable, 13-fixed frame, 14-contactor, 15-thermal relay, 16-back door, 91-motor loop feeder breaker.

Detailed Description

In order that the objects, aspects and advantages of the utility model will become more apparent, the utility model will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The connection mentioned in the utility model is divided into fixed connection and detachable connection, the fixed connection is non-detachable connection and includes but is not limited to folding edge connection, rivet connection, bonding connection, welding connection and other conventional fixed connection modes, the detachable connection includes but is not limited to threaded connection, snap connection, pin connection, hinge connection and other conventional detachment modes, when the specific connection mode is not clearly limited, at least one connection mode can be found in the existing connection modes by default to realize the function, and the skilled person can select according to the needs. For example: the fixed connection selects welding connection, and the detachable connection selects hinge connection.

The first embodiment is as follows: the embodiment is described by combining fig. 1-fig. 3, the novel low-voltage switch cabinet of the embodiment comprises a cabinet body formed by combining an upper part and a lower part of a fixed compartment part 2 and a drawer unit part 3, a ventilation hole 5 is formed in the cabinet body, an overhaul rear door 16 is arranged at the rear of the cabinet body, an eyebrow 1 is arranged at the top of the fixed compartment part 2, if more power distribution loops are arranged, the fixed compartment part can be arranged in a front-back mode, but an insulation plate convenient to detach needs to be additionally arranged on a primary wire outlet part of a drawer unit, so that safety is ensured, and the cabinet rear door 16 generally adopts a double-door structure, so that space is saved and maintenance is convenient.

The drawer cabinet is characterized by further comprising a cable compartment 4, the cable compartment 4 is communicated with and arranged on the right side of the drawer unit part 3, the cable compartment 4 can be arranged according to actual needs, if an incoming line and an outgoing line run along the rear side of the cabinet body, the cable compartment 4 can not be arranged, as shown in fig. 1, in the drawing, the width L6 is set to be 200mm of the cable compartment 4 according to the line running of the incoming line and the outgoing line along the right side of the cabinet body, and the width L1 of the cabinet body is 800 mm; if no cable compartment 4 is provided, the cabinet width may be considered as 600 mm. If the number of loops is large, the cable amount is large, the cable compartment 4 can be considered as 400mm according to the width L6, the cabinet width is considered as 1000mm according to the width L1, the drawer units 3 in the attached drawings 1 and 3 are arranged according to 2 loops, the drawer height L5 is arranged according to 200mm, the specific number can be adjusted according to the actual number of loops of the motor, the height of the drawer unit 3 can be 200mm, 400mm and the like according to the loop capacity, the effective width 560mm of the drawer unit part 3 is provided, and the height of the fixed compartment 2 can be adjusted according to the actual number of loops; the width L1 of the cabinet body can be 600mm, 800mm and 1000 mm; the depth and the height of the cabinet body can be determined according to the actual engineering requirements, the depth is not more than 1000mm generally, and the height is not more than 2200mm generally. The drawing takes the case of 800mm of width, 600mm of depth, 100mm of height L3 of brow 1 and 1400mm of height L2.

Fixed compartment part 2 internally mounted has fixed frame 13, fixed frame has seted up a plurality of modulus holes on 13, the installation of being convenient for dismantle in a flexible way, do not set up the baffle in the fixed compartment 2, be favorable to improving the heat dispersion of the cabinet body, as shown in fig. 1, fixed compartment 2 height L4 sets up according to 800mm in the drawing, the compartment height can be adjusted according to actual return circuit and operating mode, the installation of inlet wire unit and all distribution circuit is arranged as shown in fig. 3 in the system, if distribution circuit number is more, fixed compartment 2 can adopt the mode of front and back installation arrangement, nevertheless the insulating board of being qualified for the next round of competitions the part of drawer unit 3 needs additional installation convenient to dismantle behind the cabinet, in order to ensure safety.

Fixed compartment part 2 is interior to install inlet wire circuit breaker 6 and distribution circuit feeder circuit breaker 9 through the cooperation of modulus hole, inlet wire circuit breaker 6 and distribution circuit feeder circuit breaker 9 electric connection, install motor circuit feeder circuit breaker 91 in the drawer unit part 3, contactor 14 and thermorelay 15, inlet wire circuit breaker 6 and distribution circuit feeder circuit breaker 9, equal mutual electric connection between distribution circuit feeder circuit breaker 9 and the motor circuit feeder circuit breaker 91, motor circuit feeder circuit breaker 91 and contactor 14 electric connection, contactor 14 and thermorelay 15 electric connection, inlet wire circuit breaker 6 and all distribution circuit feeder circuit breakers 9 all adopt plug-in circuit breaker, convenient maintenance.

The incoming line breaker 6 is connected with the distribution loop feeder breaker 9 through a copper busbar 8, the end part of the copper busbar 8 is electrically connected with a vertical busbar 10, and the vertical busbar 10 is connected with the motor loop feeder breaker 91 through a cable 12.

The drawer unit part 3 and the corresponding cabinet body are provided with a primary connector 11, and the drawer main loop is connected with an external circuit through the primary connector 11. The drawer control loop is connected with an external circuit through a secondary plug connector.

And a current transformer 7 can be selectively arranged on the bus at the lower opening of the incoming line breaker 6 according to requirements.

The motor circuit can be provided with motor protectors according to engineering requirements, replacing the thermal relay 15. If no special requirement exists, whether the current transformer is arranged or not can be considered according to relevant specification requirements.

The cabinet body is a vertical cabinet formed by splicing common cold-rolled steel plates, and the fixed frame 13 is 8MF type steel and/or C type steel.

The utility model can also be arranged with XL21 cabinet, GGD cabinet, MNS cabinet, GCS cabinet and GCK cabinet, etc. to be made of the same material and have the same size, so as to be convenient for being used in combination with the cabinets.

The outside cover of copper busbar 8 and vertical busbar 10 is equipped with and moulds the pipe thermoplastically, and the A, B, C looks thermoplastically moulds the pipe colour for yellow, green, red respectively that the copper busbar 8 is arranged, is convenient for discern and ensures pleasing to the eye.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

It should be noted that, in the above embodiments, as long as the technical solutions can be aligned and combined without contradiction, those skilled in the art can exhaust all possibilities according to the mathematical knowledge of the alignment and combination, and therefore, the present invention does not describe the technical solutions after alignment and combination one by one, but it should be understood that the technical solutions after alignment and combination have been disclosed by the present invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel low-voltage switch cabinet is characterized in that: the multifunctional cabinet comprises a cabinet body formed by combining an upper part and a lower part of a fixed compartment part (2) and a drawer unit part (3), wherein the cabinet body is provided with a vent hole (5), an access rear door (16) is arranged at the rear part of the cabinet body, and the top of the fixed compartment part (2) is provided with an eyebrow (1);

the drawer unit further comprises a cable compartment (4), and the cable compartment (4) is communicated with the right side of the drawer unit part (3);

a fixed frame (13) is arranged in the fixed compartment part (2), and a plurality of modulus holes are formed in the fixed frame (13);

install inlet wire circuit breaker (6) and distribution circuit feeder circuit breaker (9) through the cooperation of modulus hole in fixed compartment part (2), inlet wire circuit breaker (6) and distribution circuit feeder circuit breaker (9) electric connection, install motor circuit feeder circuit breaker (91) in drawer unit part (3), contactor (14) and thermorelay (15), inlet wire circuit breaker (6) and distribution circuit feeder circuit breaker (9), equal mutual electric connection between distribution circuit feeder circuit breaker (9) and the motor circuit feeder circuit breaker (91), motor circuit feeder circuit breaker (91) and contactor (14) electric connection, contactor (14) and thermorelay (15) electric connection.

2. The novel low-voltage switch cabinet according to claim 1, characterized in that: incoming line circuit breaker (6) are connected through female (8) the establishment of arranging of copper with distribution circuit feeder circuit breaker (9), and female (8) tip electric connection of copper arranges (10) perpendicularly, and perpendicular female (10) of arranging establishes through cable (12) with motor circuit feeder circuit breaker (91) and is connected.

3. A novel low-voltage switchgear cabinet as claimed in claim 2, characterized in that: the drawer unit part (3) and the corresponding cabinet body are provided with a primary plug connector (11).

4. A novel low-voltage switchgear cabinet as claimed in claim 2, characterized in that: and a current transformer (7) is arranged between the incoming line breaker (6) and the distribution loop feeder circuit breaker (9).

5. A novel low-voltage switchgear cabinet as claimed in claim 2, characterized in that: and a motor protector is arranged between the motor loop feeder circuit breaker (91) and the contactor (14).

6. The novel low-voltage switch cabinet according to claim 5, characterized in that: thermoplastic tubes are sleeved outside the copper busbar (8) and the vertical busbar (10).