JPH0261202B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates generally to a control center, and more particularly to a control center box.

In general, a control center has control units housed in multiple stacks on the front and rear sides, and includes a unit section located symmetrically with respect to the center of the cross section of the box body, and a vertical wiring section arranged adjacent to the unit section.
It has a vertical generatrix section located in the center of the cross section of the box. In addition, there is a horizontal bus bar section on the top of the box.
The lower part has a cable management section and uses a box constructed by combining various frames.

[Prior art]

Conventionally, the control center box described above has vertical mounting members having a width approximately equal to the width of the vertical wiring section arranged from both sides of the box toward the center, and the control center is controlled by the vertical mounting members. The rear part of the partition plate, which also serves as the unit's guide rail, was fixed. Further, the vertical bus bar was also fixed to the vertical mounting member via an insulating supporter.

By the way, in a single-sided control center that does not house a control unit on the rear side, electrical equipment such as a terminal block may be housed on the rear side and connected by wiring to the control unit on the front side. In this case, the vertical mounting member becomes a hindrance. Therefore, the wiring route has been secured by providing a gap between the side surface of the side body and the vertical mounting member or by providing a through hole in the vertical mounting member. The above-mentioned wiring route is generally narrow, and wiring work is not easy.

Furthermore, since the work of fixing the vertical generatrix to the vertical mounting frame must be performed at the center of the box, there is a drawback that it is not easy and inefficient to connect the edges to the screw tightening locations.

[Summary of the invention]

This invention was made in order to eliminate the above-mentioned drawbacks, and the present invention has been made in order to eliminate the above-mentioned drawbacks. The space between the main column and the sub-column can be used as a wiring and cable lead-in route between the front and rear surfaces, and the vertical busbar is separated into a pair of sub-pillars installed in the sub-pillar. It is also an object of the present invention to provide a control center box that can be assembled outside the box, thereby eliminating the drawbacks of the conventional ones.

[Embodiments of the invention]

This embodiment will be described below with reference to FIGS. 1 to 6.

In the figure, 100 indicates the entire double-sided control center, which is usually arranged in multiple rows. 1
01 is a unit section in which the control units 102 are housed in multiple stacks, and 103 is a vertical wiring section. 10
5 is a horizontal busbar section, and 106 is a cable handling section.

Reference numeral 110 in FIG. 2 indicates the first box frame body which is currently in the process of being assembled. 1 is a corner support provided at the four corners of the box frame 110, 2 is an intermediate support provided between the unit section 101 and the vertical wiring section 103, and 3 is a support in the depth direction on both sides of the box frame 110. A pair of main supports placed in the middle. Reference numeral 4 designates horizontal horizontal members in the width direction arranged at the front and back of the upper and lower surfaces of the box frame body 110, and reference numeral 5 designates horizontal horizontal members in the depth direction arranged on the left and right sides. The horizontal members 4 and 5 above constitute quadrilateral frames on the top and bottom surfaces of the box frame 110,
The upper and lower ends of the corner support 1, intermediate support 2, and main support 3 are connected. The horizontal horizontal member 5 in the depth direction has a cross section consisting of a vertical leg 5a located on the outer surface of the box frame, a long horizontal leg 5b with a stepped portion 5d, and a short horizontal leg 5c. Reference numeral 111 in FIG. 4 is a second box frame body in which the upper support member 6, the lower support member 7, and a pair of sub-pillars 8 shown in FIG. 5 are assembled to the box frame body 110.

The upper support member 6 has a flat surface 6a and a pair of rising legs 6.
It has a U-shaped cross section having a U-shaped cross section, and is fixed to the stepped portion 5d of the horizontal horizontal member 5 with screws at a fixing portion 6c extending from the left and right ends of the flat surface 6a.

The lower support member 7 has a flat surface 7a and a pair of rising legs 7.
It has a U-shaped cross section with a U-shaped cross section, and its left and right ends are fitted inside the main support 3, which also has a U-shaped cross section, and are fixed with screws at the rising legs 7b. Moreover, 7c is a square hole provided so that a cable can be drawn into the vertical busbar. The sub-pillar 8 is a flat surface 8
a, has a U-shaped cross section with a pair of rising legs 8b, the upper end of which is fitted inside the upper support member 6;
Each of the rising legs 6b and 8b is fixed with a screw. Further, a pair of fixing parts 8c are formed at the lower end so as to straddle the lower support member 7, and are fixed to the lower support member 7 with screws.

The lower support member 7 is disposed at a predetermined height from the lower surface of the box body, and lifts up the sub-support column 8. As a result, the entire lower surface of the box can be used as the cable lead-in processing section 106, making it easier to lead in the external cable.

Further, the fixed position of the lower support member 7 is the main column 3.
Can be made to any height along.

As shown in FIG. 6, the cross section of the control center has the above-mentioned sections formed using the above-mentioned respective pillars.

A case 102a of a control unit shown schematically is housed in a unit section 101 on the front and rear surfaces, and a vertical wiring section 103 is formed to the right of the case 102a.
The compartments 101 and 103 have doors 12 and 1, respectively.
3 is provided.

Vertical generatrix section 104 between a pair of sub-pillars 8, 8
is formed, and a three-phase vertical busbar 9 is arranged.
The vertical bus bar 9 is supported by a support fitting 11 via a pair of front and rear insulating supports 10. The above-mentioned insulation supporter 10 and support metal fittings 11 are the vertical busbar 9
The left and right sub-pillars 8 are connected by being screwed and fixed to the sub-pillar 8 of the support fitting 11.

The space between the main column 3 and the sub-column 8 can be used as a vertical wiring section 103, and can also be used as a wiring and cable lead-in path between the front and rear surfaces. That is, in a single-sided control center in which no control unit is housed on the rear side, the wiring between the terminal block, etc. housed on the rear side and the control unit on the front side can be connected through the above-mentioned space by the shortest route. Furthermore, since the space is approximately equal in width to the vertical wiring section 103, an external line cable drawn in from the rear side can also be connected to the control unit on the front side through the space.

In this case, there is no control unit on the rear side, so a large cable handling space can be secured, and cable connection work can be carried out efficiently.

Generally, the first box frame body 110 does not include fluctuation factors due to customer specifications, so each member can be assembled by welding in a short time.

The sub-pillar 8 including the vertical busbar 9 has a busbar rated current,
Since the height of the unit compartment is determined by the customer's specifications, it is additionally assembled to the first box frame 110 together with the upper and lower support members 6 and 7 by screwing.

The above sub-pillar 8 includes a vertical bus bar 9 and an insulating supporter 1
0, it is separately assembled together with the support fittings 11 outside the box body, and then transported into the first box frame body 110 and fixed with the upper and lower support members 6 and 7.

The above-mentioned separate assembly can be carried out efficiently without being hindered by the supports 1, 2, 3, etc. as in the conventional case.

〔Effect of the invention〕

As described above, in this invention, by arranging the sub-pillars closer to the center of the box body than the main props disposed on both sides of the box body, a wiring route is formed between the main column and the sub-pillars. Therefore, it is possible to easily wire and lay cables between the front side and the rear side, and it is possible to obtain a control center box body in which the vertical bus bar can be efficiently assembled separately from the sub-pillar outside the box body.

[Brief explanation of the drawing]

The drawings are for explaining a box body of a control center according to an embodiment of the present invention. FIG. 1 is a perspective view of the control center, FIG. Figure 3 is the second
FIG. 4 is a perspective view of the second box frame of the control center, FIG. 5 is a perspective view of members additionally assembled to the first box frame, and FIG. FIG. 3 is a cross-sectional view of main parts of the control center. In the figure, 100 is the control center, 1
01 is a unit section, 103 is a vertical wiring section, 10
4 is a vertical bus bar section, 110 is a first box frame body, 11
1 is a second box frame body, 3 is a main support, 6 is an upper support member, 7 is a lower support member, 8 is a sub support, and 9 is a vertical generatrix. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] 1. A control center box body comprising a unit compartment in which control units are housed in multiple stacks on the front and rear sides, a vertical wiring compartment adjacent to the unit compartment, and a vertical busbar compartment in the center, the box body Corner supports installed at the four corners of the box, intermediate supports installed at the base of the unit section and vertical wiring section, main supports placed midway in the depth direction on both sides of the box, and the top surface of the box. , a quadrilateral frame on the upper and lower surfaces arranged on the lower surface and connecting the upper and lower ends of the corner struts, intermediate struts, and main struts, a pair of sub-struts disposed closer to the center of the box body than the main struts; Upper and lower support members are arranged in the width direction of the box body and support the upper and lower ends of the sub-pillars, and the vertical generatrix section is formed between the pair of sub-pillars, and the vertical generatrix section is arranged within the section. A box body for a control center, wherein the vertical bus bar is supported by a support fitting connecting the pair of sub-pillars via an insulating supporter. 2. Claim 1, characterized in that the space between the main column and the sub-column is used as a vertical wiring section, and the space is also used as a route for wiring and cables to the front and rear surfaces. The control center box described. 3. The box body of the control center according to claim 1, wherein the left and right ends of the lower support member supporting the lower end of the sub-pillar are fixed to the main column, and are arranged above the lower surface of the box body. . 4. The horizontal member in the depth direction of the quadrilateral frame has at least a vertical leg and a stepped horizontal leg located on the outer surface of the box, and the sub-pillar and upper support member have a U-shaped cross section with a flat surface and a pair of rising legs. The left and right ends of the flat surface of the upper support member are fixed to the stepped portions of the stepped horizontal leg, and the upper ends of the sub-pillars are fitted into the upper support member and fixed at each rising leg. Claim 1 characterized in that
Control center box described in section. 5 The main column and the lower support member each have a U-shaped cross section with a flat surface and a pair of rising legs, and the left and right ends of the lower support member are fitted into the main column and fixed at the respective rising legs. In addition, the control according to claim 1, characterized in that the rising legs of the sub-pillar extend at their lower ends to both outer surfaces of the rising legs of the lower support member and are fixed to the rising legs of the lower support member. Center box.