JP2004208369A - Structure of duct arrangement for control panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure of duct arrangement for a control panel capable of independently achieving the wiring design/routing of main circuit wiring and a signal line. <P>SOLUTION: The control panel has a box 1 of a roughly rectangular parallelepiped shape; a plurality of inner units 3 provided with an electric apparatus on the surface of a substrate 2 of a roughly rectangular shape, and arranged on the inner side on the rear face of the box 1 in a longitudinal direction; main circuit wiring 7a arranged inside one side face of the box 1 in a longitudinal direction; and secondary wiring 8a arranged inside the opposite side surface of the box 1 in a longitudinal direction and lateral ducts 16 arranged for each inner unit 3 in a lateral direction. This structure of a duct arrangement for the control panel is provided with a duct base 12 on the surface of the substrate 2, and a longitudinal duct 11 which has almost the same length as the longitudinal length of the substrate 2 and is arranged in a longitudinal direction is attached to the duct base 12 so that a wiring distance is secured between the substrate surface and the longitudinal duct. The signal line 8 is housed in the longitudinal duct 11, and the main circuit wiring 7 is arranged by passing through the wiring distance. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a duct arrangement structure of a control panel including an internal unit, various wirings, and various ducts inside a box.
[0002]
[Prior art]
A control panel equipped with various switches, protection devices, measuring instruments, various wirings, and the like inside the box has a neat wiring structure by providing a duct and storing a plurality of wirings. In a conventional control panel, as disclosed in JP-A-5-284613 and JP-A-2-75905, a vertical duct and a horizontal duct are disposed inside a box in a vertical direction. ing.
[0003]
An example of this type of control panel is shown in FIGS. FIG. 6 is a front view showing an internal configuration of a conventional control panel, FIG. 7 is a front view showing a main part of the internal configuration of the conventional control panel, and FIG. 8 is an internal configuration of the conventional control panel. It is sectional drawing. In this control panel, the inside of the right side of the box 1 is a main circuit wiring space 4 for arranging the main circuit wiring 7a, and the inside of the left side of the box is a secondary power supply line 9 to a load or another panel. And a secondary wiring space 6 in which secondary wiring such as signal lines 8a and the like are provided. In the main circuit wiring space 4, a main circuit wiring vertical duct 5 is attached to house the main circuit wiring 7a. The signal line 8 is mainly housed in the horizontal duct 16, and connects the control unit 26 and the like to the control signal terminal block 25 and the like.
[0004]
[Patent Document 1]
JP-A-5-284613 (page 2-3, FIG. 1)
[0005]
[Patent Document 2]
Japanese Utility Model Laid-Open No. 2-75905 (page 1, FIG. 1)
[0006]
[Problems to be solved by the invention]
In the control panel shown in FIGS. 6 to 8, there is no object supporting the signal line 8 in the space A from when the signal line 8 is drawn out of the horizontal duct 16 and connected to the control signal terminal block 25. The main circuit wiring 7 connecting the thermal relay 23 and the load connection terminal block 24 also passes through the same space A. For this reason, it was not possible to independently design and implement the wiring for the main circuit wiring and the signal line, and the work efficiency was sometimes reduced.
[0007]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a duct arrangement structure for a control panel in which wiring of a main circuit wiring and a signal line can be independently designed and executed. Is to do.
[0008]
[Means for Solving the Problems]
The duct arrangement structure of the control panel according to the first aspect of the present invention includes a box having a substantially rectangular parallelepiped shape, and a plurality of boxes which are provided with electric devices on a substantially rectangular board surface and which are vertically arranged inside a back surface of the box. An inner unit, a main circuit wiring vertically arranged inside one side surface of the box, a secondary side wiring vertically arranged inside the other side surface of the box, In a control panel having a horizontal duct disposed in a horizontal direction for each unit, a duct base is provided on the substrate surface, and the duct base has a length substantially equal to a vertical length of the substrate. By attaching a vertical duct arranged in the vertical direction, a wiring interval is formed between the board surface and the vertical duct, a signal line is stored in the vertical duct, and the main circuit wiring is passed through the wiring interval. It is characterized by wiring.
[0009]
According to a second aspect of the present invention, in the duct arrangement structure for a control panel according to the first aspect, a side hole through which the signal line can be drawn is provided on a side surface of the vertical duct.
[0010]
According to a third aspect of the present invention, in the duct arrangement structure for a control panel according to the first or second aspect, the main circuit wiring routed between the board surface and the vertical duct is formed by the duct. It is characterized by being held by a gantry.
[0011]
According to a fourth aspect of the present invention, there is provided the control panel duct arrangement structure according to any one of the first to third aspects, wherein the vertical duct has a vertical duct main body and a vertical duct cover, and the vertical duct cover includes a plurality of vertical duct covers. It is characterized in that it covers the opening over the vertical duct main body.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
The duct arrangement structure of the control panel according to the present embodiment will be described with reference to FIGS. FIG. 1 is a front view showing the internal configuration of the control panel of the present embodiment, FIG. 2 is a front view showing an internal unit which is a main part of the internal configuration of the control panel, and FIG. FIG. 4 is a perspective view showing a main part of an internal configuration of the control panel, and FIG. 5 is a front view of the control panel with a door closed.
[0013]
Reference numeral 1 denotes a box which is formed by bending a metal plate into a substantially rectangular parallelepiped shape. FIG. 1 shows a state in which the door is opened, and FIG. 5 shows a state in which the door is closed.
[0014]
Reference numeral 3 denotes an internal unit, as shown in FIG. 2, on a rectangular substrate 2 surface, as various electric devices, a branch breaker 21, an electromagnetic contactor 22, a thermal relay 23, a load connection terminal block 24, a control signal terminal. The base 25, the control unit 26, and the auxiliary relay 27 are mounted, and the main circuit wiring 7, the signal line 8, the duct gantry 12, the vertical duct 11, and the horizontal duct 16 are attached as wiring and its accessories. Further, the inner unit 3 is bridged by being juxtaposed in the vertical direction on two U-shaped frames 10 attached vertically in the back of the box 1.
[0015]
Further, a transformer 31, a main terminal block 32, and a circuit breaker 33 for wiring are mounted in the space inside the box 1 and vertically above the space in which the internal unit 3 is provided. I have.
[0016]
On the other hand, the inside of the right side surface of the box 1 is a main circuit wiring space 4 in which the main circuit wiring 7a is provided. The main circuit wiring vertical duct 5 is attached here, and the main circuit wiring 7a is housed therein. Further, the inside of the left side surface of the box is a secondary wiring space 6 for arranging secondary wiring such as a secondary power supply line 9 and a signal line 8a to a load or another panel.
[0017]
As shown in FIG. 5, an operation display unit 35, an energization indicator light 36, and an ammeter 37 are installed on a door attached to the front of the box 1, and the energized state is set when the door is closed. I understand it.
[0018]
As shown in FIG. 2, the main circuit wiring 7 and the signal line 8 of the internal unit 3 are wired substantially horizontally on the substrate 2 surface. Here, it is more convenient that the main circuit wiring 7 and the signal line 8 are separately provided due to the nature thereof. First, the main circuit wiring 7 is drawn out from the vertical duct 5 for main circuit wiring and connected to electric equipment such as a branch breaker 21, an electromagnetic contactor 22, a thermal relay 23, and a load connection terminal block 24, and is connected to a secondary wiring. Wired to space 6. The signal line 8 is drawn from the control unit 26 and the like, passes through the horizontal duct 16 and the vertical duct 11, is connected to the control signal terminal block 25 and the like, and is wired to the secondary wiring space 6. . Here, as shown in FIG. 4, the vertical duct 11 includes a vertical duct main body 13 and a vertical duct lid 14, and is mounted on the surface of the substrate 2 via the duct base 12. The duct base 12 is a substantially U-shaped bracket, two of which are fixed on the surface of the substrate 2, and holds the vertical duct main body 13. The vertical duct body 13 has a U-shaped cross section, and a plurality of rectangular side holes 15 are formed in the side surface. The signal line 8 drawn from the horizontal duct 16 and passed through the vertical duct body 13 exits from the side hole 15 and is connected to the control signal terminal block 25. That is, the communication line 8 can be drawn out from an appropriate place on the side surface of the vertical duct main body 13 to the electric device. On the other hand, a portion of the main circuit wiring 7 connecting the thermal relay 23 and the load connection terminal block 24 passes through a wiring interval between the vertical duct main body 13 and the board 2 and is attached to the duct rack 12. Is held by the insulated lock 17. As a result, the main circuit wiring 7 and the signal line 8 are three-dimensionally separated from each other, so that they are not in contact with each other. The vertical duct bodies 13 attached to the respective internal units 3 are attached to the same place in the horizontal direction inside the box 1, and a vertical duct lid 14 that covers all the openings by one is attached. Can be
[0019]
In the present embodiment, since the main circuit wiring 7 and the signal line 8 are three-dimensionally separated, the design and execution of each wiring can be performed independently. Further, the main circuit wiring 7 is fixed by an insulating lock 17 attached to the duct base 12, and most of the signal lines 8 are housed inside the horizontal duct 16 and the vertical duct 11, so that they are orderly. A wiring structure can be used. From the above, the design and production of the control panel becomes easy, and the work efficiency at the production site is improved. In addition, since the length of the vertical duct 11 used in each of the inner units 3 is constant, it is possible to prepare many standard products. And since it can be built in the internal unit 3 in advance, the work on the production and assembly site can be made more efficient.
[0020]
Further, since a certain distance can be secured between the main circuit wiring 7 and the signal line 8, the effect of noise on the signal line 8 is reduced. In the present embodiment, the newly provided vertical duct 11 uses a space that was a dead space in the conventional control panel, so that the above-described effects can be obtained without increasing the size of the control panel. it can.
[0021]
In addition, since the vertical duct lid 14 is attached so as to cover the openings of the plurality of vertical duct bodies 13 in the vertical direction, the appearance of the control panel with the door opened is improved, and the number of parts is reduced. Can be.
[0022]
【The invention's effect】
The duct arrangement structure of a control panel according to claim 1, wherein the box has a substantially rectangular parallelepiped shape, and a plurality of internal units which are provided with electric devices on a substantially rectangular board surface and which are vertically arranged inside a back surface of the box. A unit, a main circuit wiring vertically disposed inside one side surface of the box, a secondary wiring vertically disposed inside the opposite side surface of the box, and each of the internal unit units. A horizontal duct arranged in the horizontal direction, a duct base is provided on the substrate surface, and the duct base has a length substantially equal to a vertical length of the substrate in the vertical direction. By attaching a vertical duct provided in the, a wiring interval is formed between the substrate surface and the vertical duct, a signal line is housed in the vertical duct, and wiring is performed through the main circuit wiring in the wiring interval. Main circuit wiring And the signal lines are sterically separated. As a result, each wiring design and board fabrication can be performed independently, and workability at the fabrication site is improved.
[0023]
The duct arrangement structure of the control panel according to claim 2 is characterized in that, in the configuration according to claim 1, a side hole through which the signal line can be drawn is provided on a side surface of the vertical duct. In addition to the effect described in the item 1, the communication line can be drawn out from an appropriate place on the side surface of the vertical duct to the electric device.
[0024]
According to a third aspect of the present invention, in the duct arrangement structure of the control panel according to the first or second aspect, the main circuit wiring routed between the board surface and the vertical duct is connected to the duct base. Therefore, in addition to the effects of claim 1 or claim 2, the main circuit wiring is stabilized, and the reliability is improved.
[0025]
The duct arrangement structure of the control panel according to claim 4, wherein the vertical duct has a vertical duct main body and a vertical duct lid, and the vertical duct lid covers an opening across a plurality of the vertical duct main bodies. Because of this feature, in addition to the effects of claims 1 to 3, the appearance of the control panel with the door opened is improved, and the number of parts can be reduced.
[Brief description of the drawings]
FIG. 1 is a front view showing an internal configuration of a control panel according to an embodiment.
FIG. 2 is a front view showing a main part of an internal configuration of a control panel according to the embodiment.
FIG. 3 is a cross-sectional view illustrating an internal configuration of a control panel according to the embodiment.
FIG. 4 is a perspective view showing a main part of an internal configuration of a control panel according to the embodiment.
FIG. 5 is a front view of the control panel according to the embodiment with a door closed.
FIG. 6 is a front view showing an internal configuration of a conventional control panel.
FIG. 7 is a front view showing a main part of an internal configuration of a conventional control panel.
FIG. 8 is a sectional view showing an internal configuration of a conventional control panel.
[Explanation of symbols]
Reference Signs List 1 Box 2 Board 3 Internal unit 4 Main circuit wiring space 5 Vertical duct for main circuit wiring 6 Secondary wiring space 7, 7a Main circuit wiring 8, 8a Signal line 9 Secondary power line 10 Frame 11 Vertical duct 12 Duct Stand 13 Vertical duct body 14 Vertical duct lid 15 Side hole 16 Horizontal duct 17 Insulok 21 Branch breaker 22 Magnetic contactor 23 Thermal relay 24 Load connection terminal block 25 Control signal terminal block 26 Control unit 27 Auxiliary relay 31 Transformer 32 Main terminal block 33 Wiring breaker 35 Operation display unit 36 Power indicator 37 Ammeter

Claims (4)

A box having a substantially rectangular parallelepiped shape, a plurality of internal units provided with electrical devices on a substantially rectangular board surface and arranged vertically inside the back of the box, and vertically inside one side surface of the box. A main circuit wiring, a secondary wiring vertically arranged inside the side surface opposite to the box, and a horizontal duct arranged horizontally in each of the internal unit units. In the control panel, a duct base is provided on the board surface, and the duct base is attached to the duct base with a vertical duct having a length substantially the same as the length of the board in the vertical direction and attached to the board in the vertical direction. A duct arrangement structure for a control panel, wherein a wiring interval is formed between a surface and the vertical duct, a signal line is housed in the vertical duct, and the main circuit wiring is wired through the wiring interval. . The duct arrangement structure for a control panel according to claim 1, wherein a side surface hole through which the signal line can be drawn is provided on a side surface of the vertical duct. 3. The duct arrangement structure for a control panel according to claim 1, wherein the main circuit wiring routed between the board surface and the vertical duct is held by the duct mount. . The said vertical duct has a vertical duct main body and a vertical duct lid, The said vertical duct lid covers an opening part over several said vertical duct main bodies, The Claims 1 thru | or 3 characterized by the above-mentioned. Control panel duct arrangement structure.

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