CN220341756U - Miniaturized unit type fixed partition cabinet - Google Patents

Abstract

The utility model relates to a miniaturized unit type fixed separation cabinet, which comprises: the cabinet body comprises a main frame, a top plate, a bottom plate, side plates, a back plate and a front panel, wherein the top plate and the bottom plate are matched with the main frame to jointly limit an inner space; the internal space includes: a main bus bar chamber which is designed at the upper part of one side of the cabinet body close to the front panel and is used for accommodating a main bus bar; the functional chamber is designed below the main bus chamber and is defined by a rear sealing plate, and the functional chamber is separated by a layer of partition plates to form a plurality of independent unit compartments for accommodating the circuit breaker arranged on the rear sealing plate; the vertical bus chamber is arranged on one side of the functional chamber away from the front panel and is used for accommodating a vertical bus electrically connected with the main bus, and the vertical bus is electrically connected with a wire inlet end of the circuit breaker; the outgoing copper bar chamber is arranged on the same side of the functional chamber in parallel with the vertical bus chamber, and is limited by a rear sealing plate and a functional baffle plate, and the functional baffle plate is used for positioning outgoing copper bars; and the cable chamber is designed on one side close to the rear back plate and is used for accommodating a cable connected with the outgoing copper bars.

Description

Miniaturized unit type fixed partition cabinet

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a miniaturized unit type fixed partition cabinet.

Background

In low-voltage distribution systems, low-voltage switchgear assemblies or distribution control cabinets are widely used. Currently, the low-voltage switchgear sets are in a fixed type, a drawer type, a fixed separation type and the like, and different requirements of users can be met.

For the user terminal, the drawer type control cabinet is favored because the drawer type control cabinet can meet multi-loop power supply, has higher reliability, safety and interchangeability. However, the drawer type control cabinet also has drawbacks such as the easiness of heat generation of the busbar due to poor contact caused by abrasion of the plug connector, abrasion of the busbar, and the like; the drawer pushing mechanism and the interlocking mechanism are easy to damage and break due to frequent operation; the heavy current whole drawer has large weight, large pushing force of the plug connector and the like.

The fixed partition cabinet can effectively avoid a plurality of defects of the drawer cabinet. However, in the prior art, the separating units of the fixed separating cabinets basically have components of the access circuit installed in the extractable drawer units, and the cable empty chambers of the small units are reserved on the layout design of the whole cabinet. This results in a relatively large floor space for fixing the separating cabinets, and this way of mounting and fixing the components also results in a high production and production cost.

Accordingly, there remains a need in the relevant art for an improved fixed divider cabinet to further optimize its performance to ameliorate or solve the problems with the prior art.

Disclosure of Invention

The object of the present utility model is therefore to provide a miniaturized unitary fixed partition, by which the disadvantages of the prior art described above are overcome.

In order to accomplish the above task, the present utility model provides a miniaturized unit type fixed partition cabinet, which is characterized by comprising: the cabinet body comprises a main frame, a top plate, a bottom plate, a pair of side plates, a back plate and a front plate, wherein the top plate and the bottom plate are oppositely arranged and matched with the main frame to jointly limit an inner space; the interior space of the cabinet includes: a main bus bar chamber which is designed at an upper portion of one side of the cabinet body close to the front panel and is used for accommodating a main bus bar; a functional compartment designed below the main bus bar compartment and defined by a rear sealing plate designed opposite to the front panel, the functional compartment being partitioned by a layer partition positioned with respect to the main frame to form a plurality of independent unit compartments, each of the unit compartments being correspondingly for accommodating a circuit breaker mounted on the rear sealing plate; a vertical bus bar chamber designed at a side of the functional chamber away from the front panel, the vertical bus bar chamber being for accommodating a vertical bus bar connected with the main bus bar, the vertical bus bar being electrically connected with a wire inlet end of the circuit breaker; the outlet copper bar chamber and the vertical bus bar chamber are arranged on the same side of the functional chamber in parallel along the width direction of the cabinet body, and are defined by the rear sealing plate and the functional separation plates which are arranged in parallel and at intervals, and the functional separation plates are used for stably positioning outlet copper bars electrically connected with the outlet end of the circuit breaker; and a cable chamber which is designed at one side close to the rear back plate and is used for accommodating a cable connected with the outgoing copper bar.

As a preferred embodiment, the functional partition is designed as a rectangular plate, and comprises three rectangular through holes distributed in a triangular shape along the long side direction of the rectangle and secondary wire passing holes formed in one short side of the rectangle, and the wire outlet copper bars are correspondingly positioned to the rectangular through holes.

As a preferred embodiment, the long sides of the rectangular through holes are parallel to the long sides of the functional partitions configured as rectangular plate members.

As a preferred embodiment, three of the rectangular through holes are distributed in an isosceles triangle, and the base of the isosceles triangle is parallel to the long side of the functional partition and located on the side close to the vertical bus room.

As a preferred embodiment, the secondary via is designed as an arch-shaped hole.

As a preferred embodiment, the main frame of the cabinet is constructed from omega-shaped profiles and the width of the cabinet is designed to be no more than 500 mm.

As a preferred embodiment, the rear sealing plate is designed with mounting holes, and the circuit breaker is mounted to the rear sealing plate by a screw connection.

As a preferred embodiment, the rear sealing plate is further provided with a wire inlet hole and a wire outlet hole, and the wire inlet hole and the wire outlet hole are respectively used for respectively enabling a wire inlet copper bar and a wire outlet copper bar which are electrically connected with the wire inlet end and the wire outlet end of the circuit breaker to extend through the rear sealing plate so as to respectively enter the vertical bus bar chamber and the wire outlet copper bar chamber from the unit compartment.

As a preferred embodiment, the wire inlet and the wire outlet are designed to be shaped as kidney-shaped holes which connect the wire inlet and the wire outlet of the circuit breaker.

As a preferred embodiment, the cabinet further comprises an operating handle provided on the front panel and operatively connected to the circuit breaker to operate opening and closing of the circuit breaker.

Compared with the prior art, the miniaturized unit type fixed partition cabinet provided by the utility model has the advantages that the narrower width is provided (meanwhile, the depth of the cabinet body is not required to be increased to offset the problem of insufficient space caused by the reduction of the internal space due to the narrowing of the width), the requirement of miniaturization of electrical equipment caused by limited urban space and high land resource value is met, and the fixed partition cabinet provides equipment with novel structure, which meets the requirements of assembly and functions of required internal electronic components, and has definite partition and small space occupation by reasonably planning the internal space of the cabinet body and reasonably arranging the mutual position relationship of the electronic components (such as a structural design of a functional partition plate provides a reasonable position distribution and a simple and convenient arrangement mode for an outgoing copper bar electrically connected with an outgoing line end of a circuit breaker).

Additional features and advantages of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following, or may be learned from practice of the utility model.

Drawings

Embodiments of the present utility model are described in detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a perspective view of a miniaturized unitary fixed divider provided by the present utility model;

fig. 2 is an internal view of fig. 1, in which functional elements such as a circuit breaker are not shown;

FIG. 3 is a front view of FIG. 1;

fig. 4 is a front view of fig. 2;

FIG. 5 is a right side view of FIG. 1;

FIG. 6 is a rear view of FIG. 1;

FIG. 7 is a schematic view of functional partitions of a miniaturized unitary fixed divider provided by the present utility model;

FIG. 8a is a bottom view of FIG. 1;

fig. 8b is a schematic view of a partition of a miniaturized unit type fixed partition cabinet provided by the present utility model.

Description of the reference numerals

1-a cabinet body; 10-an interior space; 100-main bus-bar compartment; 100 a-main bus; 102-a functional compartment; 104-vertical bus-bar chamber; 106-a wire outlet copper bar chamber; 106 a-outgoing copper bars; 108-a cable chamber; 12-a main frame; 120-front panel; 122-a back plate; 124-a rear sealing plate; 124 a-mounting holes; 124 b-a wire inlet hole; 124 c-wire holes; 126-layer separator; 126 a-unit compartment; 128-functional separator; 128 a-rectangular through holes; 128 b-secondary via holes; 129-side support plates; 14-a circuit breaker; 16-operating handle.

Detailed Description

An exemplary scheme of the miniaturized unit type fixed dividing cabinet according to the present utility model will now be described in detail with reference to the accompanying drawings. The drawings are provided to present various embodiments of the utility model, but are not necessarily drawn to scale and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the present disclosure. The position of part of components in the drawings can be adjusted according to actual requirements on the premise of not affecting the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification do not necessarily all refer to the figures or examples.

Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "upper", "lower" and other directional terms, will be understood to have their normal meaning and refer to those directions as they would be when viewing the drawings. Unless otherwise indicated, directional terms described in this specification are essentially in accordance with conventional directions as understood by those skilled in the art.

The terms "first," "second," and the like as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

In this context, by the term "substantially" it is meant that the referenced parameter or value need not be exactly achieved, but rather that the deviation or variation (where deviation or variation includes, for example, tolerances, measurement errors, measurement accuracy limitations and other factors known to those of skill in the art) may occur in an aggregate amount that does not interfere with the effect provided by the feature in question.

Fig. 1 is a perspective view of a miniaturized unit type fixed partition cabinet provided by the present utility model. As shown in fig. 1, the miniaturized unit type fixed partition cabinet includes a cabinet body 1, wherein the cabinet body 1 includes a main frame 12, a top plate and a bottom plate which are disposed opposite to each other, a pair of side plates (not shown in the figure) disposed opposite to each other, and a rear back plate 122 and a front panel 120 disposed opposite to each other, which are mounted in cooperation with the main frame 12 to form the cabinet body 1 and define an inner space 10 of the cabinet body 1. The interior space 10 includes a main bus bar chamber 100, a functional chamber 102, a vertical bus bar chamber 104, an outgoing copper bar chamber 106, and a cable chamber 108.

The main bus bar chamber 100 is located on one side (i.e., the top front side) of the top of the cabinet body 1 near the front panel 120, and the main bus bar chamber 100 accommodates a main bus bar 100a, where the main bus bar 100a is used for collecting and distributing current. The functional compartment 102 is located below the main bus bar compartment 100 and is defined by a front panel 120 and a rear closure plate 124 disposed opposite the front panel 120. The main bus bar chamber 100 and the functional chamber 102 are partitioned by a lower partition plate. The functional compartment 102 is divided by a layered partition 126 into a plurality of individual unit compartments 126a, each unit compartment 126a housing a circuit breaker 14 (e.g., molded case circuit breaker 14), the circuit breaker 14 preferably being mounted on a rear closure plate 124. The cabinet 1 further includes side support plates 129, which are provided on both left and right sides of the cabinet 1 at positions corresponding to the functional compartments 102, as shown in fig. 1. The functional partitions 128 are mounted on the main frame 12 and the side support plates 129. The vertical busbar chamber 104 is located at the left rear of the functional chamber 102, i.e. on the side of the functional chamber 102 remote from the front panel 120. The vertical busbar chamber 104 is defined by side partitions (separating the vertical busbar chamber 104 and the outlet copper bar chamber 106) and rear partitions (separating the vertical busbar chamber 104 and the cable chamber 108) together with side support plates 129 and rear seal plates 124 of the functional chambers 102. The vertical bus compartment 104 is configured to receive a vertical bus electrically connected to the main bus 100a, which is electrically connected to the incoming line side of the circuit breaker 14. The outlet copper bar chamber 106 is located at the right rear of the functional chamber 102, is located at the rear of the functional chamber 102 like the vertical bus bar chamber 104, and is arranged in the width direction of the cabinet 1. The outlet copper bar chamber 106 is defined on the front and rear sides by the rear seal plate 124 and the functional partition plate 128, and on the left and right sides by the side support plate 129 and the side partition plate. The functional partition 128 is used to support and position the outgoing copper bar 106a, and the outgoing copper bar 106a is electrically connected to an outgoing terminal of the circuit breaker 14 and extends from the functional compartment to the outgoing copper bar chamber 106 and is supported and positioned by the functional partition 128. The cable chamber 108 is located at the rear of the vertical busbar chamber 104 and the outgoing copper bar chamber 106 and is defined by the side panels of the cabinet 1, the rear back panel 122, the side and rear partitions of the vertical busbar chamber 104, and the functional partition 128 of the outgoing copper bar chamber 106. The cable chamber 108 is for accommodating a cable electrically connected to the outgoing copper bar 106 a.

Fig. 2 is an internal view of fig. 1, in which functional elements such as circuit breaker 14 are not shown. As shown in fig. 2, the main frame 12 of the cabinet 1 forms the basic outline of the cabinet 1. The main frame 12 is constructed from omega-shaped profiles and the width of the cabinet 1 is designed to be no more than 500 mm. The cabinet 1 is designed as a cuboid, and each prism of the cuboid is a frame (i.e. a cross beam and a column) of the cabinet 1, which forms a basic structure of the main frame 12. In addition to the basic structure of the main frame 12, the main frame 12 is provided with partial cross beams and uprights for supporting, positioning (corresponding plates) or (optionally) for separation. The lower partitions of the main bus bar compartment 100 are mounted to beams positioned at both sides and front of the main frame 12, which are parallel to the top and bottom beams of the cabinet 1, respectively. The main bus bar 100a is installed in the main bus bar chamber 100. The side support plates 129 are mounted on one side to the cross member of the side where the aforementioned lower partition plate is located, and on the other side to the bottom cross member of the main frame 12. The main frame 12 is also provided with side support beams, one end of which is positioned to the side support plates 129 and the other end of which is positioned to the rear uprights of the main frame 12. As shown in fig. 2, the side support beams are parallel to the cross beams on the same side of the cabinet 1. The layer bulkhead 126 is mounted to the upright post and side support plates 129 of the cabinet 1. In fig. 2, a layer of partitions 126 separates the functional compartment 102 into six separate unit compartments 126a. In this regard, it will be appreciated by those skilled in the art that the number of unit cells 126a may be varied as desired and such variations are within the scope of the present disclosure.

Fig. 3 is a front view of the miniaturized unit-type fixed divider shown in fig. 1. As shown in fig. 3, there is shown a front panel 120 of the cabinet 1 and an operating handle 16 mounted on the front panel 120. The operating handle 16 controls opening and closing of the circuit breaker 14, for example, by manipulating an operating mechanism that can act on the circuit breaker 14. Other additional mechanisms may be provided on the front panel 120, display mechanisms such as a display screen or the like, adjustment mechanisms such as knobs or buttons or the like to facilitate the operator in monitoring or adjusting the use parameters. The front panel 120 at the top and bottom of the cabinet 1 is also provided with ventilation channels to facilitate heat dissipation from the cabinet 1.

Fig. 4 is a front view of fig. 2 with functional units within the functional compartment 102, such as the circuit breaker 14 and other possible electronic components associated therewith, removed to facilitate viewing of the structure of the unit compartment 126a. Fig. 4 shows the cabinet 1, the top of the cabinet 1 is provided with a main bus bar chamber 100, in which a main bus bar 100a is accommodated, the lower part of the main bus bar chamber 100 is a functional chamber 102, the functional chamber 102 is divided into a plurality of independent unit compartments 126a by a layer partition 126, and the rear part of the unit compartment 126a is defined using a rear sealing plate 124 to be separated from other chambers. One of the unit cells 126a will now be described as an example. The rear sealing plate 124 is provided with mounting holes 124a, for example, four kidney-shaped holes distributed in a rectangular shape, and the circuit breaker 14 is mounted to the rear sealing plate 124 by screw-coupling members matching the kidney-shaped holes. Of course, those skilled in the art will recognize that other means of mounting or connecting the circuit breaker 14 to the rear closure plate 124 may be employed without departing from the scope of the teachings provided herein.

The rear sealing plate 124 is further provided with a wire inlet 124b and a wire outlet 124c, wherein the wire inlet 124b is used for allowing the wire inlet copper bar electrically connected with the wire inlet end of the circuit breaker 14 to extend therethrough, and the wire outlet 124c is used for allowing the wire outlet copper bar 106a electrically connected with the wire outlet end of the circuit breaker 14 to extend therethrough. The incoming copper bar extends to and is electrically connected with the vertical busbar chamber 104, and the outgoing copper bar 106a extends to the outgoing copper bar chamber 106 and is positioned to the functional separator 128. The wire inlet 124b and the wire outlet 124c are designed as kidney-shaped holes arranged in the height direction of the unit cells 126a, which are conformal (i.e., size-shape-matched) to the wire inlet and outlet copper bars 106 a. The lower right corner of the rear sealing plate 124 is also provided with an arch-shaped hole, which is provided corresponding to a secondary wire passing hole 128b provided on the functional partition 128, which will be described later, and both are used together for secondary wire passing.

Fig. 5 is a right side view of the cabinet 1 shown in fig. 1, from left to right, showing the handle, the unit compartment 126a, the side support plates 129, the outgoing copper bar 106a, and the like in this order. The positions and connection relationships of these structures have been described above and are not described here again.

Fig. 6 is a rear view of fig. 1 showing the mating of the functional separator 128 with the outgoing copper bar 106 a. The vertical bus bars located in the vertical bus bar chamber 104 are not visible in the figure due to the blocking of the rear partition. As can be seen, the outgoing copper bars 106a are distributed in a triangular shape on the functional separator 128. Fig. 7 is a schematic view of a functional partition 128 of a miniaturized unitary fixed divider provided by the present utility model. The structure of the functional separator 128 is shown in particular, wherein the functional separator 128 is designed as a rectangular plate, the rectangular short side of which is provided with positioning holes for fixing it to, for example, the layer separator 126 by means of positioning elements. The functional separator 128 includes three rectangular through holes 128a that are triangularly distributed in the long side direction of the rectangle, and the long sides of the rectangular through holes 128a are parallel to the rectangular long sides of the functional separator 128. Preferably, three rectangular through holes 128a are distributed on the functional partition 128 in an isosceles triangle shape, and the base of the isosceles triangle is parallel to the long side of the functional partition 128 and is close to one side of the vertical bus bar chamber 104 at the same time, and the outgoing copper bar 106a is positioned and supported on the functional partition 128 corresponding to the rectangular through holes 128 a. This distribution of rectangular through holes 128a in the functional separator 128 is not only aesthetically pleasing but also meets the insulation distance and electrical clearance from each other. The functional barrier 128 also includes a secondary via 128b formed at the short side of the rectangle, the secondary via 128b being designed as an arch-shaped hole for routing secondary wires for the main circuit of the device (e.g., control, monitoring, measurement, tracking, display, etc.).

FIG. 8a is a bottom view of FIG. 1; fig. 8b is a schematic view of a partition of a miniaturized unit type fixed partition cabinet provided by the present utility model. By combining fig. 8a and 8b, the distribution of the relevant room areas inside the cabinet 1 can be seen more intuitively and clearly. The figure shows a main bus bar chamber 100 at the side of the top of the cabinet 1 near the front panel 120, a functional chamber 102 below the main bus bar chamber 100 (two chamber areas are embodied in one area here due to the spatial overlap of the main bus bar chamber 100 and the functional chamber 102), a vertical bus bar chamber 104 at the left rear of the functional chamber 102, a wire-outlet copper bar chamber 106 at the right rear of the functional chamber 102, and a cable chamber 108 at the rear of the vertical bus bar chamber 104 and the wire-outlet copper bar chamber 106. The detailed description of the chamber area is described in the foregoing, and will not be repeated here.

Compared with the prior art, the miniaturized unit type fixed partition cabinet provided by the utility model has the advantages that the narrower width is provided (meanwhile, the depth of the cabinet body is not required to be increased to offset the problem of insufficient space caused by the reduced internal space due to the narrowing of the width), the requirement of miniaturization of electrical equipment caused by limited urban space and high land resource value is met, and the fixed partition cabinet provides equipment with novel structure, which meets the requirements of assembly and function realization of required internal electronic components, and has simple structure, clear partition and small space occupation by reasonably planning the internal space of the cabinet body and reasonably arranging the mutual position relationship of the electronic components (such as the structure of a functional partition plate provides a reasonable position distribution and a simple and convenient arrangement mode for an outgoing copper bar electrically connected with an outgoing line end of a circuit breaker).

While the utility model has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the utility model is not limited to such disclosed embodiments. Rather, the utility model can be modified by incorporating any number of variations, alterations, substitutions, or equivalent arrangements not heretofore described, but which are commensurate with the spirit and scope of the utility model. Further, while various embodiments of the utility model have been described, it is to be understood that aspects of the utility model may include only some of the embodiments. Accordingly, the utility model is not to be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.

Claims (10)

1. A miniaturized unitary fixed divider, comprising: a cabinet (1), the cabinet (1) comprising a main frame (12) and oppositely disposed top and bottom plates, a pair of oppositely disposed side plates and oppositely disposed back and front plates (122, 120) cooperating with the main frame (12) to jointly define an interior space (10);

the interior space (10) of the cabinet (1) comprises:

a main bus bar chamber (100) which is designed at an upper portion of the cabinet body (1) on a side close to the front panel (120) and is used for accommodating a main bus bar (100 a);

-a functional compartment (102) designed underneath the main busbar compartment (100) and defined by a rear closing plate (124) designed opposite to the front panel (120), the functional compartment (102) being divided by a layer partition (126) positioned with respect to the main frame (12) to form a plurality of independent elementary compartments (126 a), each of said elementary compartments (126 a) being correspondingly adapted to house a circuit breaker (14), the circuit breaker (14) being mounted on the rear closing plate (124);

a vertical bus bar chamber (104) designed at a side of the functional chamber (102) away from the front panel (120), the vertical bus bar chamber (104) being for accommodating a vertical bus bar electrically connected to the main bus bar (100 a), the vertical bus bar being electrically connected to a line incoming end of the circuit breaker (14);

an outlet copper bar chamber (106) which is arranged on the same side of the functional chamber (102) along the width direction of the cabinet body (1) side by side with the vertical bus bar chamber (104) and is defined by the rear sealing plate (124) and a functional partition plate (128) which is arranged in parallel with the rear sealing plate at intervals, wherein the functional partition plate (128) is used for stably positioning an outlet copper bar (106 a) electrically connected with an outlet end of the circuit breaker (14);

a cable compartment (108) designed on a side close to the back plate (122) and adapted to receive a cable connecting the outgoing copper bars (106 a).

2. The miniaturized unit type fixed partition cabinet according to claim 1, wherein the functional partition (128) is designed as a rectangular plate, and comprises three rectangular through holes (128 a) distributed in a triangular shape along the long side direction of the rectangle and a secondary wire passing hole (128 b) opened at one short side of the rectangle, and the wire copper bars (106 a) are correspondingly positioned to the rectangular through holes (128 a).

3. The miniaturized unit-type fixed divider according to claim 2, characterized in that the long sides of said rectangular through holes (128 a) are parallel to the long sides of said functional partitions (128) configured as rectangular plates.

4. The miniaturized unit-type fixed compartment according to claim 2, characterized in that three of said rectangular through holes (128 a) are distributed in an isosceles triangle, and the base of the isosceles triangle is parallel to the long side of said functional partition (128) and located on the side close to said vertical busbar chamber (104).

5. The miniaturized unit-type fixed divider of claim 2, characterized in that the secondary via (128 b) is designed as an arched hole.

6. Miniaturized unit-type fixed divider according to claim 1, characterized in that said main frame (12) of said cabinet (1) is constructed from omega-shaped profiles and in that the width of said cabinet (1) is designed not to exceed 500 mm.

7. The miniaturized unit-type fixed divider according to claim 1, characterized in that said rear closing plate (124) is designed with mounting holes (124 a), said circuit breaker (14) being mounted to said rear closing plate (124) by means of threaded connections.

8. The miniaturized unit-type fixed closet according to claim 1, characterized in that the rear closing plate (124) is further designed with a wire inlet hole (124 b) and a wire outlet hole (124 c), the wire inlet hole (124 b) and the wire outlet hole (124 c) being respectively provided for a wire inlet copper bar and a wire outlet copper bar (106 a) electrically connected with the wire inlet end and the wire outlet end of the circuit breaker (14) to extend through the rear closing plate (124) to enter the vertical busbar chamber (104) and the wire outlet copper bar chamber (106) from the unit compartment (126 a), respectively.

9. The miniaturized unit-type fixed closet according to claim 8, characterized in that the inlet hole (124 b) and the outlet hole (124 c) are designed to conform to kidney-shaped holes connecting the inlet copper bar and the outlet copper bar (106 a) of the circuit breaker (14).

10. The miniaturized unit-type fixed divider according to claim 1, characterized in that said cabinet (1) further comprises an operating handle (16), said operating handle (16) being provided on said front panel (120) and operatively connected to said circuit breaker (14) to operate opening and closing of said circuit breaker (14).