JP2010288379A - Distribution panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution panel that is flexibly disposed according to the space and layout of an electric room. <P>SOLUTION: Components such as a bus conductor 2 and a circuit breaker (vacuum circuit breaker) 3 are stored in a casing 1a for composing the distribution panel 1 with one circuit on one surface. Dimension L<SB>1</SB>in a width direction of the casing is set to be identical to L<SB>2</SB>in a depth direction for formation, namely in a square shape. The bus conductors are separated in a vertical direction in the order of phases and are arranged horizontally in a width direction of the casing, and separation dimensions A, B between an edge in the width direction of the casing of the bus conductors and a sidewall section of the casing, mutually become identical. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a switchboard having a one-sided and one-circuit configuration in which, for example, a bus bar conductor, a vacuum circuit breaker, and the like are housed in a casing, and more particularly to a switchboard suitable for connection.

  A switchboard (switchgear) has a function of distributing electricity sent from an electric power company to a load that requires electricity. For example, a plurality of or several types of switchboards are arranged in the panel width direction, and busbars of adjacent switchboards. Electricity is distributed by connecting the terminals with inter-board connection conductors or the like. When the switchboard is installed in the electrical room, the switchboard is arranged in consideration of not only the size and shape of the electrical room, but also the installation area of the switchboard, the front / rear maintenance space of the switchboard, and the like. Generally, the switchboards are arranged in the panel width direction. However, depending on the conditions of the electrical room, the arrangement is divided and arranged separately, and the two switchboards are back to back, and the busbars are placed between the backs at any one location. In some cases, connection is made with a connection conductor between boards. As a conventional technique, there is one in which plate-like busbar conductors are arranged separately in the horizontal direction in the order of the plate surface in the vertical direction (see, for example, Patent Document 1).

Japanese Examined Patent Publication No. 62-59522 (first page, FIG. 2)

  To install the switchboard, in addition to the installation area of the switchboard, there is a need for space for carrying in and pulling out the drawing equipment such as the installed vacuum circuit breaker and for drawing in and connecting work such as external cables. Become. In addition, there are various conditions depending on the electrical room, for example, when there is a part protruding from the wall surface, when the shape is L-shaped, or when other electrical equipment has already been installed. The space where the switchboard can actually be installed is very limited. Therefore, it is desirable for the switchboard to be able to reduce the space required for installation and to effectively utilize the limited space. It has been difficult for the conventional technique such as Patent Document 1 to adopt a configuration corresponding to the space.

  The present invention has been made in view of the above-described prior art, and an object thereof is to provide a switchboard that can flexibly cope with the space, layout, and the like of an electric room.

  In the switchboard according to the present invention, the widthwise dimension and the depthwise dimension of the housing in which the bus bar conductor and the circuit breaker are accommodated are formed to be the same. The bus conductors are phase-separated in the vertical direction and arranged horizontally in the width direction, and the width dimension between the end of the bus conductor in the width direction and the side wall of the housing is the same on the left and right. It is composed.

  The distribution board according to the present invention has a square shape when viewed from above, and the distance between the end portion in the board width direction of the bus conductor and the side wall portion of the casing is the same in the left and right sides. It is possible to connect not only the direction and the back face alignment but also the back face of the switchboard to be connected to the side face of the board. For this reason, it can respond flexibly according to an installation space or a layout.

The perspective view which shows notionally the principal part structure of the switchboard which concerns on Embodiment 1 of this invention. The top view which shows the example which arranged the switchboard shown by FIG. 1 in multiple numbers. The perspective view which shows notionally the principal part structure of the switchboard which concerns on Embodiment 2 of this invention. The top view which shows the example which arranged the switchboard shown by FIG. 3 in multiple numbers. The top view which shows the other example of an arrangement | sequence of the switchboard shown by FIG.

Embodiment 1 FIG.
Hereinafter, the switchboard (switchgear) according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 and 2. In the figure, inside a housing 1a constituting the switchboard 1, there are a bus conductor 2 constituting a main circuit, a vacuum circuit breaker 3 as a circuit breaker, one end connected to the load side of the vacuum circuit breaker 3, and the other end. etc. connection conductor 4 having a cable connection portion 4a for connecting the external cable (not shown) is housed, the dimension L ₁ and depth dimension L ₂ is the same (lower right direction from the upper left of Figure) widthwise Is formed. That is, when the switchboard 1 is viewed from above, it is square. The bus bar conductor 2 is made of a plate-like conductive material, ensuring a spatial distance that can satisfy the withstand voltage performance between the housing 1a and between the phases, and in phase order, for example, from the top in the order of R, S, T phase. It is spaced apart in the vertical direction and is supported horizontally in the width direction of the housing 1a on the back side of the housing 1a by insulating support means (not shown).

  In addition, in order to minimize the conductor length from the bus conductor 2 of the main circuit to the cable connecting portion 4a, the vacuum circuit breaker 3 is also arranged in the order of R, S, T phase from the top in parallel with the bus conductor 2. Has been. The left upper separation dimension A in FIG. 1 and the lower right separation dimension B in FIG. 1 secured between the width direction end of the bus conductor 2 and the side wall of the housing 1a are the same in the left and right. It is configured. Note that, for example, a through-hole is used when connecting the bus conductors 2 of the adjacent switchboards 1 to each other by the inter-board connection conductors 7 described later when the switchboards 1 are arranged in a row at each end in the width direction of the housing 1a of the bus conductors 2. An engaging portion (not shown) such as a hole is provided.

  In addition to the above-described typical features of the present invention, the switchboard 1 has a structure that allows front operation and maintenance, and a door 1b (not shown in FIG. 1) that can be opened and closed by a hinge is provided on the front side of the housing 1a. The door 1b is provided with devices such as a digital multi-relay (not shown) capable of measuring, displaying and controlling the state in the panel and operating the storage devices. When the door 1b is opened, the operation surface (not shown) of the vacuum circuit breaker 3 is provided on the front surface, and the vacuum circuit breaker 3 can be taken in and out. Further, when the cover (not shown) provided on the front surface when the door 1b is opened is removed, the cable connecting portion 4a for connecting the external cable appears, and the external cable is pulled in from the front side, and compression / crimping is performed. It is configured to be able to perform processing, connection work to branch conductors, and the like. Further, a predetermined portion such as a side wall, a back wall, a top plate, or a floor of the housing 1a is inserted with an inter-board connection conductor 7 described later, an external cable on the load side is inserted, or connected to the power source side. An insertion portion (not shown) for inserting the power bus can be configured. Since the functions, configurations, and the like of the switchboard 1 are the same as those of the conventional switchboard and the closed switchboard, the illustration and description are omitted for details.

  The switchboard 1 having one surface and one circuit configured as described above has a desired number (6 in this example) prepared as necessary for the installation place where the pillar 6 protrudes from the wall 5 of the electric room. For example, as shown in FIG. That is, the switchboards 1A, 1B, and 1C are connected in the width direction with the front facing upward in the figure, the switchboard 1D and the switchboard 1E are connected so that their backs face the back side of the switchboards 1A and 1B, and the switchboard 1F is a dotted line Since the work space D indicated by the circle cannot be secured, the front surface is directed to the right side of the drawing, and the right side surface portion of the switchboard 1E is connected to the back side of the switchboard 1C.

  Further, the bus conductors 2 arranged inside the switchboard 1A to 1F are all straight plates, and as shown in FIG. 2, the inter-board connection conductor 71 having a length a and b having a length b. By means of three types of inter-board connection conductors, an inter-board connection conductor 72 and an inter-board connection conductor 73 having a length c (hereinafter referred to collectively as inter-board connection conductor 7 when there is no need to distinguish), The R, S, and T phases are connected and fixed in the same manner by known connecting means such as bolts and nuts not shown. The inter-panel connecting conductor 71 is connected to the position where the switchboard 1 is connected in the width direction, the inter-panel connecting conductor 72 is connected back to back, and the inter-board connecting conductor 73 is the back of the distribution board 1 of the counterpart distribution board 1. It is used separately for each part connected to the side.

  In the first embodiment configured as described above, a one-surface one-circuit configuration and the width and depth of the switchboard 1 are the same, so that the switchboard 1 can be arranged in both directions and back-to-back. In addition to the above arrangement, flexible arrangement is possible depending on the space shape of the installation place, such as connecting to the back and side respectively. In addition, since the bus conductor 2 is disposed horizontally on the back side of the housing 1a with the plate surface horizontal, the bus bar connection work on the back surface of the switchboard 1 can be easily performed. In addition, the separation dimensions A and B secured between both ends of the bus conductor 2 and the left and right side wall portions of the housing 1a are set to be the same dimension, and are arranged in the vertical direction in order of the switchboard 1 The inter-board connection conductors 7 that connect the bus conductors 2 to each other when they are lined up can be connected by straight plate-like conductors having the same length between phases. In the first embodiment, the required length of the inter-board connection conductors 7 differs depending on the way of the rows, and three types a, b, and c are prepared as shown in FIG. In the case of only the arrangement in the side surface direction, one type of the inter-board connection conductor 71 having a length is sufficient.

  Also, when the front door 1b is opened and the cover (not shown) installed on the inside front is removed, the cable connecting portion 4a for connecting the external cable appears, and the external cable is pulled in from the front side, compression / crimping Processing, connection work to branch conductors, etc. can be performed. That is, a front operation and front maintenance structure can be provided. Also, for example, if there is a protruding part such as a pillar and the front space of the switchboard 1 cannot be secured, it is conventionally arranged up to a place where the front space can be secured, and other arrangements are made separately, and each arrangement is held with cables or the like. However, such a response becomes unnecessary. For this reason, it is also possible to reduce the usage amount of materials such as cables. By reducing the amount of materials used, it can contribute to the reduction of environmental impact.

Embodiment 2. FIG.
Next, the switchboard according to the second embodiment of the present invention will be described with reference to FIGS. Note that the same or corresponding parts are denoted by the same reference numerals throughout the drawings. 3, the left upper separation dimension A and the lower right separation dimension B of FIG. 2 secured between the widthwise end of the bus conductor 2 and the side wall of the housing 1a are configured to be the same on the left and right. In addition, the separation dimension C between the bus conductor 2 and the back wall portion of the housing 1a is also configured to be the same as the separation dimensions A and B. That is, in the second embodiment, A = B = C. Other configurations of the switchboard 1 are the same as those in the first embodiment. FIG. 4 shows an example in which the switchboard 1 configured as described above is installed in an electric room having a planar shape similar to that of FIG. FIG. 5 shows another example in which the switchboard 1 is arranged in an L shape along the wall of an L-shaped electric chamber.

  In the second embodiment configured as described above, the separation dimensions A and B between the bus conductor 2 and the left and right side walls of the casing 1a and the separation dimension C between the rear wall of the casing 1a are all set. By having the same dimensions, the inter-board connection conductors 7 connecting the adjacent bus conductors 2 can be connected by straight conductors, and the dimensions of the inter-board connection conductors 7 are the same as those of the first embodiment. One type of the inter-board connection conductor 71 of a can correspond to all connection locations. For this reason, since it becomes easy to standardize, the kind of components can be reduced and it can also be made cheap. In addition, it is possible to more flexibly cope with various shapes and pillars of the electric room, and the limited space can be used effectively.

  In addition, in the said embodiment, although the vacuum circuit breaker 3 was used as a circuit breaker, it is not necessarily limited to this. In addition, here, the side of the switchboard 1 on which the door 1b is provided is referred to as the front, and the left and right directions viewed from the front are referred to as the width direction and the front and rear directions are referred to as the depth direction.

  1 (1A to 1F) switchboard, 1a housing, 1b door, 2 bus conductor, 3 vacuum circuit breaker, 4a cable connection part, 4 connection conductor, A, B, C separation dimensions, 5 walls, 6 pillars, 7 (71 72, 73) Inter-board connection conductor.

Claims (4)

  The dimension in the width direction and the dimension in the depth direction of the housing in which the bus bar conductor and the circuit breaker are accommodated are formed the same, and the bus bar conductors are separated in the vertical direction in order and arranged horizontally in the width direction, A switchboard characterized in that the distance between the end in the width direction of the bus conductor and the side wall of the housing is the same on the left and right.   The distance between the bus conductor and the back wall of the housing is configured to be the same as the distance between the end of the bus conductor in the width direction and the side wall of the housing. The switchboard according to claim 1.   The switchboard according to claim 1 or 2, wherein the bus bar conductor is made of a plate-like conductor and has a plate surface provided horizontally.   The said housing | casing is arranged in the width direction or the depth direction, and the bus-bar conductors accommodated in the adjacent housing | casing are all connected by the board | substrate connection conductor of the same dimension. The switchboard according to any one of 3 above.

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