JP2008099497A - Door structure for panelboard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door structure of a panelboard that facilitates changing the arrangement of equipment, and re-fabrication of a bundle of wires on the body side of the panelboard is not required. <P>SOLUTION: Each of openings 16 to 18 is provided at a door 2 for a monitoring portion unit, an operation indicating portion unit, and a protective device portion unit. The monitoring portion unit 21, with measuring instruments provided, is fitted to the opening 16; the operation indicating portion unit 25 with an operation indicator provided is fitted to the opening 17; the protective device portion unit 29 with protective equipment provided is fitted to the opening 18; and connectors 22, 26, 30 for electrically connecting the body 1 side of the panelboard are provided to each of the units 21, 25, 29, respectively. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a switchboard door structure.

  FIG. 3 is a perspective view of a conventional switchboard, wherein 1 is a switchboard body, 2 is a door that can be opened and closed at the opening of the switchboard body 1, and the door 2 has a voltmeter 3, a wattmeter 4, and an ammeter. 5 and a monitoring unit 7 such as a watt-hour meter 6, an operation display unit 10 such as an operation switch 8 and a display unit 9, and a protective device unit 14 such as a protective relay 11, PT 12 and CT 13 are provided. In order to attach each of these devices, the door 2 is provided with many mounting holes. Further, an auxiliary relay 15 and a timer are provided on the back surface of the door 2.

Further, in Patent Document 1, the door is provided with a device status display unit, an alarm, an ammeter, and other devices such as lamps and switches corresponding to other devices. A mounting hole is provided.
JP 2003-32819 A

  In the switchboard described above, when a change in equipment arrangement is requested by a customer during assembly, the door 2 must be replaced with a new one, and the bundling must be performed again, resulting in a significant cost increase.

  The present invention has been made to solve the above-described problems, and can easily cope with a request for change in equipment arrangement from a consumer, and does not require remanufacturing of bundled wires. The purpose is to obtain a switchboard door structure.

  The switchboard door structure according to claim 1 of the present invention is a distribution board in which a door is provided in an opening of a switchboard body so that the door can be opened and closed. Each opening for a monitoring unit, an operation display unit, and a protection device unit And a monitoring unit attached to the opening for the monitoring unit of the door, provided with a connector for electrical connection with the switchboard body side, and an operation display Equipment is provided, a connector for electrical connection with the switchboard body side is provided, an operation display unit attached to the opening for the operation display unit of the door, and a protective device are provided, A connector for electrical connection to the switchboard body side is provided, and a protective device unit attached to the door protective device unit opening is provided. .

  The door structure of the switchboard according to claim 2 is such that each device is provided on the surface plate of each unit.

  As described above, according to the first aspect of the present invention, the monitoring unit unit provided with the instrument device, the operation display unit unit provided with the operation display device, and the protection device unit provided with the protection device. Each unit is attached to the opening of the door. If there is a change in the arrangement of the instrument, only the monitoring unit needs to be remanufactured. Only the display unit needs to be re-manufactured, and if there is a change in the layout of the protective equipment, only the protective device unit needs to be re-manufactured, making remanufacturing easy and reducing costs possible. Become. Each unit is provided with a connector, and the connection between each unit and the bundled wire on the switchboard body side is performed by the connector, so that it is not necessary to remanufacture the bundled wire.

  According to the second aspect, since each device is provided on the surface plate of each unit, it is only necessary to remanufacture only the surface plate of the unit when the arrangement of the device is changed. Thus, further cost reduction is possible.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a switchboard door structure according to the best mode of the present invention. The upper, middle, and lower portions of the door 2 are for a monitoring unit, an operation display unit, and a protection device unit, respectively. Openings 16 to 18 are provided, and stud bolts 19 are attached to the upper and lower back sides of the openings 16 to 18 of the door 2. Reference numeral 20 denotes a hinge for attaching the door 2 to the switchboard body 1 so as to be freely opened and closed. Reference numeral 21 denotes a monitoring unit that is attached to the opening 16. An instrument device such as a voltmeter 3 is provided, and a connector 22 for electrical connection with a bundled wire on the switchboard body 1 side is provided via an electric wire 23. An attachment hole 24 is provided for connection and attachment to the stud bolt 19.

  Reference numeral 25 denotes an operation display unit attached to the opening 17, and an operation display device such as an operation switch 8 is provided, and a connector 26 for electrical connection with a bundled wire on the switchboard body 1 side is connected to an electric wire 27. A mounting hole 28 is provided which is connected to the stud bolt 19 and is attached to the stud bolt 19. Reference numeral 29 denotes a protection device unit attached to the opening 18. A protection device such as a protection relay 11 is provided, and a connector 30 for electrical connection with a bundled wire on the switchboard body 1 side is provided via an electric wire 31. And an attachment hole 32 for attachment to the stud bolt 19 is provided.

  FIG. 2 is an exploded perspective view of the monitoring unit 21. Reference numeral 33 denotes a surface plate having a thickness of 2.3 mm or 3.2 mm, to which an instrument device such as a voltmeter 3 and a connector 22 are attached. In addition, an attachment hole 34 for attaching to the main body case 35 is provided. Reference numeral 35 denotes a main body case. In addition to the mounting hole 24, an attachment hole 36 for attachment to the surface plate 33 is provided on the front surface, and a through hole 37 of the connector 22 is provided below the main body case 35. An attachment hole 39 for connecting the inspection port 38 and the charging unit protection cover 40 is provided on the rear surface of the main body case 35, and a plastic charging unit protection cover 40 made of plastic is attached to the inspection port 38. Reference numeral 41 denotes an attachment hole for the main body case 35. The operation display unit 25 and the protection device unit 29 are also configured in the same manner as the monitoring unit 21, and both the operation display device and the protection device are attached to the surface plate.

  In the above-mentioned best embodiment, the monitoring unit 21 provided with the instrument device, the operation display unit 25 provided with the operation display device, and the protection device unit 29 provided with the protection device are the opening of the door 2. It is attached to each of the units 16 to 18, and when the arrangement of the instrument device is changed, only the monitoring unit 21 needs to be manufactured again. When the arrangement of the operation display device is changed, the operation display is performed. It is only necessary to remanufacture only the unit 25, and if there is a change in the layout of the protective equipment, it is only necessary to remanufacture only the protective device unit 29. This makes remanufacturing easier and reduces costs. It becomes. In particular, since these devices are provided on the surface plate of each unit 21, 25, 29, it is only necessary to remanufacture only the surface plate, which makes remanufacturing easier and further reduces costs. Further, since the connectors 21, 26 and 30 are provided in the units 21, 25 and 29, the connectors 21, 26 and 30 are used to connect the units 21, 25 and 29 to the bundled wires of the switchboard body 1. Therefore, even if there is a change in the arrangement of the equipment, the bundled wires of the switchboard main body 1 are not re-manufactured, and it is possible to reduce the cost by adding the bundled wires.

It is a disassembled perspective view of the door structure of the switchboard by the best embodiment of this invention. It is a disassembled perspective view of the monitoring part unit by the best embodiment. It is a perspective view of the conventional switchboard.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Switchboard body 2 ... Door 3 ... Voltmeter 4 ... Wattmeter 5 ... Ammeter 6 ... Electricity meter 8 ... Operation switch 9 ... Display part 11 ... Protection relay 12 ... PT
13 ... CT
16-18 ... opening 21 ... monitoring unit 22, 22, 26 ... connector 25 ... operation display unit 29 ... protective device unit 33 ... surface plate

Claims (2)

  In a switchboard with a door that can be opened and closed at the opening of the switchboard body, a door provided with an opening for each of the monitoring unit, the operation display unit and the protection device unit, and an instrument device are provided. A connector for electrical connection with the switchboard body side is provided, a monitoring unit attached to the door monitoring unit unit opening, an operation display device, and electrical connection with the switchboard body side Are provided with an operation display unit attached to the opening for the operation display unit of the door, a protective device, and a connector for electrical connection with the switchboard body side. And a protection device unit attached to the opening for the protection device unit of the door.   2. A switchboard door structure according to claim 1, wherein each of the devices is provided on a surface plate of each unit.

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