JP2014147143A - Control board and replacement method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control board which allows for reduction in the effort required for the replacement work of an old board and a new board as much as possible, and to provide a replacement method thereof.SOLUTION: A control board 20 provided, in the bottom thereof, with an opening facing the opening of a cable pit formed in the floor while opening upward so as to house the cables being laid, has a housing 23 including a cable installation hole 25 formed in the front on the bottom, and a drawer 24 that is a detachable closing member normally closing the cable installation hole 25.

Description

  The present invention relates to a control panel and a method for replacing the control panel, and particularly to a remote monitoring control panel (TC panel) that is a control panel that uses a large number of control cables and has many power failure switching steps. It is useful.

  The information on the electric station is transmitted from the remote monitoring and control device (TC) to the monitoring and control device in a remote location (such as a control station or a sales office) via the information collection and distribution device (DX) at the control relay station. Various devices of the remote monitoring control device are housed in a remote monitoring control panel (TC panel). When replacing a control panel including such a TC panel, if there is no space for a new control panel, the new control panel is installed after the old control panel is removed, but cable laying, connection and various tests are conducted. Then, the control panel cannot be used for a long time. In particular, a control panel such as a TC panel that uses a large number of control cables and has many power failure switching steps requires long-term direct operation or power failure, which greatly impedes system operation.

  In order to solve this problem, a new control panel to be replaced and installed is temporarily placed in front of the old control panel to be removed, the old control panel is raised, and a new cable is installed from the bottom of the panel to replace it. .

  Such a control panel replacement method will be described with reference to FIGS. Here, the old control panel including the TC panel to be removed as an object of replacement is referred to as the old panel, and the new control panel including the TC panel newly installed as the target of replacement is referred to as the new panel. To do.

  FIGS. 12 to 18 are explanatory views conceptually showing a method for replacing a control panel by the raising method according to the prior art, in which (a) shows a state viewed from a plane and (b) shows a state viewed from a side. ing. Each process will be described in time series based on these drawings. In addition, the same number is attached | subjected to the same part in each figure, and the overlapping description is abbreviate | omitted.

1) Temporary placement process of new board As shown in FIG. 12, the old board 1 to be replaced and removed is placed on the floor 5 of the building 4 (area surrounded by a thick dotted line) where the control board is installed. It is arrange | positioned with the other board 3 which is an existing control board other than. In this process, the new board 2 that is replaced with the old board 1 is temporarily placed on the front surface of the old board 1. Here, the old board 1, the other board 3 and the new board 2 are placed on the channel bases 6 and 7, respectively. The old board 1 and the other board 3 are connected to each other by the old cable 8.

2) Raising process of the old board As shown in FIG. 13, with the old board 1 raised in the height direction, a splint 11 serving as a spacer is disposed on the floor surface 5, and the splint 11 and the channel base 6 are The H angle 10 is placed on the upper surface of both of them, and the old board 1 is placed on the H angle 10. Thus, the height of the old board 1 is raised by the height of the H angle 10. After raising, the fixing metal 13 is passed between the upper surface of the old board 1 and the upper surface of the new board 2, and both ends of the fixing metal 13 are fixed to the upper surface of the old board 1 and the upper surface of the new board 2. Thus, the old board 1 is fixed to the new board 2 through the fixing bracket, and is prepared for shaking such as an earthquake during the temporary placement period of the new board 2 (usually 2 to 3 weeks).

3) New cable laying process under the old board As shown in FIG. 14, instead of the old cable 8, the new cable 9 fed from the new board 2 is passed through the H angle 10 and the inside of the channel base 6 to the outdoor equipment 12. Connecting.

  Here, FIG. 14C and FIG. 14D show the positional relationship between the H angle 10 and the new cable 9 in particular. FIG. 14C shows a state seen from the side, and FIG. 14D shows a state seen from the plane. As shown in both figures, the H angle 10 functions as a spacer for raising the old board 1 and also has a protection function for the new cable 9.

4) Removal process of old cable As shown in FIG. 15, after switching to the new cable 9, the old cable 8 is removed.

5) Removal step of fixing bracket and old board As shown in FIG. 16, the fixing by the fixing bracket 13 is released, and the old board 1 is removed from the H angle 10.

6) Moving process of new board As shown in FIG. 17, the H angle 10 is moved to the new board 2 side, and another splint 14 is disposed at the end of the new board 2 side. An H angle 10 is installed between them. In this state, the new board 2 is once lifted and placed on the H angle 10, moved toward the position of the old board 1 where the H angle 10 is removed as a rail, and the end of the H angle 10 on the old board 1 side. Then, the H angle 10 is lowered to the channel base 6 (the moving direction of such a series of new discs 2 is indicated by an arrow in FIG. 17B). Is disposed.

7) Completion Step As shown in FIG. 18, the channel base 6, the H angle 10, and the splints 11 and 14 are removed to complete a series of replacement work.

  As described above, in the replacement method of the conventional technique, as the old board 1 is raised, many complicated operations such as fixing the old board 1 to the new board 2 by the fixing bracket 13 and releasing the old board 1 are required. As a result, much labor and time are required, and further proposals for a rational replacement method are awaited.

  As a known document that achieves the same object, Patent Document 1 exists, but it is not sufficient.

JP 2007-330001 A

  An object of the present invention is to provide a control panel and a replacement method thereof that can reduce as much as possible the labor required for replacement work between an old board and a new board.

The first aspect of the present invention is:
A control panel having an opening at the bottom opposite to the opening of the cable pit formed on the floor having an opening that opens upward to store the cable to be laid,
The control panel includes a housing having a cable laying hole formed in a lowermost front surface and a detachable closing member that normally closes the cable laying hole.

  According to this aspect, since the new cable can be laid using the cable laying hole, it is not necessary to raise the old board to be removed.

The second aspect of the present invention is:
In the control panel described in the first aspect,
The closing member is configured by a drawer that can be inserted into the cable laying hole in a direction from the front side to the back side of the housing and pulled out from the back side to the front side. Located in the control panel.

  According to this aspect, at the normal time (when the cable laying hole is closed), the drawer can be used as a storage unit for storing the accessories of the control panel.

The third aspect of the present invention is:
In the control panel described in the first or second aspect,
In the control panel, the inner peripheral surface of the casing around the cable laying hole is reinforced by a reinforcing member.

  According to this aspect, it is possible to reinforce the mechanical strength of the casing which is lowered by providing the cable laying hole.

The fourth aspect of the present invention is:
In the control panel described in any one of the first to third aspects,
The control panel is a structure for fixing the casing, and has a detachable bar extending horizontally along the inner peripheral surface on the back side of the casing.

  According to this aspect, the obstacle in the direction of inserting the new cable can be removed, and the new cable can be laid smoothly accordingly.

According to a fifth aspect of the present invention,
A replacement method for replacing any one of the control panels described in the first to third aspects,
Temporarily place a new board, which is a newly installed control panel facing the front of the old board, which is the control panel to be removed as a replacement target, and remove the blocking member of the old board to remove the front of the old board Opening a cable laying hole in
Laying a new cable drawn from the new board to a cable pit opened at the bottom of the old board through the cable laying hole and switching to the new cable;
Removing the old cable connected to the terminal block of the old board from the terminal block and removing the old cable;
The old board is moved toward the new board that has been temporarily placed, and further moved in a direction crossing the direction of the movement in front of the new board, and the installation position of the old board before being removed Removing the old board from a straight line connecting the newly placed new board;
A step of moving the temporarily placed new board along the straight line to the installation position of the old board before being removed and installing the new board at the installation position. The control panel replacement method.

  According to this aspect, it is possible to omit the step of raising the old board to be removed, which has required a great amount of time and labor, so that the replacement work can be performed in a short time.

The sixth aspect of the present invention is:
A replacement method for replacing the control panel described in the fourth aspect,
Temporarily place a new board, which is a newly installed control panel facing the front of the old board, which is the control panel to be removed as a replacement target, and remove the blocking member of the old board to remove the front of the old board Opening a cable laying hole in
A structure for fixing the casing of the control panel, and a step of removing a detachable bar extending horizontally along the inner peripheral surface on the back side of the casing;
Laying a new cable drawn from the new board to a cable pit opened at the bottom of the old board through the cable laying hole and switching to the new cable;
Removing the old cable connected to the terminal block of the old board from the terminal block and removing the old cable;
The old board is moved toward the new board that has been temporarily placed, and further moved in a direction crossing the direction of the movement in front of the new board, and the installation position of the old board before being removed Removing the old board from a straight line connecting the newly placed new board;
A step of moving the temporarily placed new board along the straight line to the installation position of the old board before being removed and installing the new board at the installation position. The control panel replacement method.

  According to this aspect, the obstacle in the insertion direction of the new cable when the new cable is laid can be removed by removing the bar, and the new cable can be laid smoothly accordingly.

  According to the present invention, since a new cable can be laid using the hole for laying the cable, it is not necessary to raise the old board, the troublesome work associated with the raising can be eliminated, and rationalization and cost reduction of the work can be achieved at the same time. . For example, since the raising is not necessary, not only the fixing bracket of the old board is not necessary, but also a new cable can be laid under the board, thereby increasing the number of installation routes.

  Further, when the closing member is formed of a drawer, not only can the dedicated accessories for the panel be accommodated, but it is also possible to confirm the tightening of the bolt on the near side under the panel by removing the drawer. Furthermore, providing the reinforcing material around the cable laying hole can make the board strength comparable to that of the prior art. Also, by removing the bar, one of the obstacles existing in the direction of laying the new cable can be removed well, and in this respect, efficiency of the replacement work can be realized.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows notionally the state at the time of the control panel which concerns on embodiment of this invention, (a) is the state seen from the front, (b) is the state seen from the side, (c) is the back surface. (D) shows the state seen from line AA ′ in (b). It is explanatory drawing which shows notionally the state which removed the drawer of the control board which concerns on embodiment of this invention, (a) is the state seen from the front, (b) is the state seen from the side, (c) is The state seen from the back surface, (d) shows the state seen from the line AA 'in (b). BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows notionally the state at the time of new cable insertion after removing the drawer of the control board which concerns on embodiment of this invention, (a) is the state seen from the front, (b) is seen from the side. (C) shows the state seen from the back side, and (d) shows the state seen from the AA 'line in (b). BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows notionally the state at the time of new cable insertion after removing the cover of the back surface of a housing | casing of the control panel which concerns on embodiment of this invention, (a) is seen from the front. (B) shows the state seen from the side, (c) shows the state seen from the back surface, and (d) shows the state seen from the line AA 'in (b). It is explanatory drawing which shows the 1st process of the replacement | exchange method of the control panel which concerns on embodiment of this invention notionally, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. ing. It is explanatory drawing which shows the 2nd process of the replacement | exchange method of the control panel which concerns on embodiment of this invention notionally, (a) is the state seen planarly, (b) is the state seen from the side, (c ) Shows the old board as seen from the front. It is explanatory drawing which shows the 3rd process of the replacement method of the control panel which concerns on embodiment of this invention in a concept, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. ing. It is explanatory drawing which shows the 4th process of the replacement method of the control panel which concerns on embodiment of this invention in a concept, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. ing. It is explanatory drawing which shows the 5th process of the replacement method of the control panel which concerns on embodiment of this invention notionally, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. ing. It is explanatory drawing which shows the 6th process of the replacement method of the control panel which concerns on embodiment of this invention notionally, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. ing. It is explanatory drawing which shows the 7th process of the replacement | exchange method of the control panel which concerns on embodiment of this invention notionally, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. ing. It is explanatory drawing which shows the 1st process of the replacement | exchange method of the control panel by the raising method based on a prior art notionally, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. Yes. It is explanatory drawing which shows the 2nd process of the replacement method of the control panel by the raising system based on a prior art in a concept, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. Yes. It is explanatory drawing which shows the 3rd process of the control panel replacement | exchange method by the raising method based on a prior art in a concept, (a) is the state seen planarly, (b) is the state seen from the side, (c) (D) shows a state where the relationship between the H angle and the new cable is viewed from the side, and FIG. It is explanatory drawing which shows the 4th process of the replacement method of the control panel by the raising method based on a prior art in a concept, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. Yes. It is explanatory drawing which shows the 5th process of the replacement method of the control panel by the raising system based on a prior art in a concept, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. Yes. It is explanatory drawing which shows the 6th process of the replacement method of the control panel by the raising method based on a prior art in a concept, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. Yes. It is explanatory drawing which shows the 7th process of the replacement method of the control panel by the raising method based on a prior art in a concept, (a) shows the state seen planarly, (b) shows the state seen from the side, respectively. Yes.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 is an explanatory diagram conceptually showing a normal state of the control panel according to the embodiment of the present invention, FIG. 2 is an explanatory diagram conceptually showing a state of the control panel with the drawer removed, FIG. These are explanatory drawings which show notionally the state at the time of new cable insertion after removing the drawer of the said control panel. Further, in each figure, (a) is a state viewed from the front, (b) is a state viewed from the side, (c) is a state viewed from the back surface, and (d) is a state viewed from the line AA 'in (b). Each state is shown. 1 to 4, the same parts are denoted by the same reference numerals, and redundant description is omitted.

  The control panel 20 according to this embodiment shown in FIGS. 1 to 4 has an opening opposite to the opening of the cable pit formed on the floor having an opening that opens upward so as to store the cable to be laid. At the bottom. A cable laying hole 25 is provided in the lowermost front surface of the casing 23. As a detachable closing member for closing the cable laying hole 25 in a normal state (the state shown in FIG. 1). The drawer 24 is inserted into the cable laying hole 25.

  Here, the drawer 24 is arranged on the inner peripheral surface of the side surface of the housing 23 and is configured to be able to be taken in and out along a rail 26 that extends linearly in the front-rear direction. The drawer 24 can be used as a storage unit for accessories or the like of the control panel 20 during normal insertion into the housing 23. On the other hand, when the drawer 24 is removed, the new cable 9 inserted from the cable laying hole 25 can be laid in a cable pit (not shown).

  A protective plate 27 is provided above the drawer 24 in the housing 23 so as to cover the opening of the drawer 24. The protective plate 27 is for preventing damage to the new cable 9 due to the drawer 24 being put in and out. The old cable 8 is connected so that one end of each of the old cables 8 is connected to the terminal block 35 and droops vertically downward to reach the cable pit.

  In the housing 23, the inner peripheral surface of the housing 23 around the cable laying hole 25 is reinforced by the reinforcing member 30A and the reinforcing member 30B. This is to ensure the mechanical strength around the cable laying hole 25 when the drawer 24 is removed in association with the formation of the cable laying hole 25 in the housing 23. Here, the reinforcing member 30A is disposed in the width direction of the housing 23 along the upper edge of the cable laying hole 25, and the reinforcing member 30B is disposed at both left and right end portions of the cable laying hole 25. It is. This improves the mechanical strength above the cable laying hole 25 and on both the left and right sides.

  The frame 28 is disposed along the inner peripheral surface at the lower part of the casing 23 to improve the mechanical strength of the casing 23. This is configured as a frame excluding the portion of the cable laying hole 25 into which the drawer 24 is inserted, and includes left and right side frame bodies 28B and 28C and a bar 28A connecting the side frame bodies 28B and 28C. Usually, it is fixed to the channel base 6 with screws 31, 32, 33. On the other hand, as shown in FIGS. 3 and 4, when the new cable 9 is laid, the screw 31 is loosened to remove the bar 28A. Accordingly, the obstacle can be removed in the insertion direction of the new cable 9, and the new cable 9 can be laid more rationally. As will be described later, this is useful when the control panel 20 is removed by moving it forward (in the direction from the back surface to the front surface of the control panel) with the new cable 9 installed.

  When the control panel 20 having such a configuration is removed, the drawer 24 is removed from the state shown in FIG. 1 and a cable laying hole 25 is opened as shown in FIG. Thereafter, as shown in FIG. 3, the new cable 9 is inserted into the housing 23 through the cable laying hole 25 and laid in the lower cable pit. At this time, the bar 28A is removed.

  Subsequently, the cover 23 </ b> A detachably attached to the lower part of the back surface of the housing 23 is removed, and the old cable 8 is removed from the terminal block 35. The control panel 20 can be moved and removed by pushing it forward (rightward in the figure) with the new cable 9 installed.

  In the above-described embodiment, the closing member of the cable laying hole 25 is configured by the drawer 24, but is not limited thereto. Since it only needs to have a function of closing the cable laying hole 25, it may be a simple plate member. However, when the drawer 24 is used, it can also function as a storage container.

  FIGS. 5-11 is explanatory drawing which shows the replacement | exchange method of the control board concerning this form notionally, (a) has shown the state seen planarly, (b) has each shown the state seen from the side. Each process will be described in time series based on these drawings. In addition, in each figure, the same number is attached | subjected to FIGS. 12-18 which show a prior art, and the mutually same part, and the overlapping description is abbreviate | omitted.

1) Temporary placement process of new board As shown in FIG. 5, the old board 21 to be replaced and removed is placed on the floor 5 of the building 4 (area surrounded by a thick dotted line) where the control board is installed. It is arrange | positioned with the other board 3 which is an existing control board other than. In this process, the new board 22 that is installed by replacing the old board 21 is temporarily placed on the front surface of the old board 21. Here, the old board 21, the other board 3 and the new board 22 are placed on the channel bases 6 and 7, respectively. In this state, the drawer 24 is still attached to the old board 21. The old board 21 and the other board 3 are connected to each other by the old cable 8. In addition, the structure itself of the old board 21 and the new board 22 is the same as that of the control board 20 demonstrated based on FIGS. That is, the control panel 20 in this embodiment is a concept including both the old board 21 and the new board 22 (hereinafter the same).

2) New cable laying preparation process As shown in FIG. 6, by removing the drawer 24 of the old board 21 shown in FIG. 5, the state of the old board 21 in this process as viewed from the front is clearly shown in (c). Thus, the cable laying hole 25 is opened toward the temporarily placed new board 22. At this point, the bar 28A (see FIGS. 1 to 4) may be removed. This is because if the bar 28A is removed before the new cable 9 is inserted into the cable laying hole 25, it will not hinder the laying operation of the new cable 9.

3) New cable laying process under the old board As shown in FIG. 7, the H angle 30 having a length from the position of the front face of the old board 21 to the position just before the newly placed new board 22 is disposed. At the same time, instead of the old cable 8, the new cable 9 fed from the new board 22 is connected to the outdoor equipment 12 through the inside of the H angle 30 and the inside of the channel base 6. Here, the H angle 30 is made to function as a rail when the old board 21 and the new board 22 are moved together with the protection of the new cable 9.

4) Removal process of old cable As shown in FIG. 8, after switching to the new cable 9, the old cable 8 is removed.

5) Removal process of old board As shown in FIG. 9, the H angle 30 is made to function as a rail, and the old board 21 is linearly moved toward the temporarily placed new board. Then, it removes by moving to the horizontal direction orthogonal to the linear direction which connects the old board 21 and the new board 22 in the position before the new board 22.

6) Removal process of old board As shown in FIG. 10, the H angle 30 is made to function as a rail, and the new board 22 at the temporary placement position is linearly moved toward the place where the old board 21 was installed (FIG. 10 ( b) direction indicated by an arrow), a new board 22 is arranged at a predetermined position of the channel base 6 instead of the removed old board 21.

7) Completion Step As shown in FIG. 11, the channel base 7 and the H angle 30 shown in FIG. 10 are removed to complete a series of replacement work.

  INDUSTRIAL APPLICABILITY The present invention can be effectively used in an industrial field that includes various electric devices and uses a control panel controlled by a remote control signal.

8 Old cable 9 New cable 20 Control board 21 Old board 22 New board 23 Case 24 Drawer 25 Hole for cable installation 28 Frame 28A Bar 28B, 28C Side frame 30A, 30B Reinforcing member

Claims (6)

A control panel having an opening at the bottom opposite to the opening of the cable pit formed on the floor having an opening that opens upward to store the cable to be laid,
A control panel comprising a casing having a cable laying hole formed in a lowermost front surface and a detachable closing member that normally closes the cable laying hole. The control panel according to claim 1,
The closing member is configured by a drawer that can be inserted into the cable laying hole in a direction from the front side to the back side of the housing and pulled out from the back side to the front side. control panel. In the control panel according to claim 1 or 2,
A control panel, wherein an inner peripheral surface of a housing around the cable laying hole is reinforced by a reinforcing member. In the control board as described in any one of Claims 1-3,
A control panel, which is a structure for fixing the casing, and has a detachable bar extending horizontally along the inner peripheral surface on the back side of the casing. A replacement method for replacing any one of the control panels according to claim 1, wherein
Temporarily place a new board, which is a newly installed control panel facing the front of the old board, which is the control panel to be removed as a replacement target, and remove the blocking member of the old board to remove the front of the old board Opening a cable laying hole in
Laying a new cable drawn from the new board to a cable pit opened at the bottom of the old board through the cable laying hole and switching to the new cable;
Removing the old cable connected to the terminal block of the old board from the terminal block and removing the old cable;
The old board is moved toward the new board that has been temporarily placed, and further moved in a direction crossing the direction of the movement in front of the new board, and the installation position of the old board before being removed Removing the old board from a straight line connecting the newly placed new board;
A step of moving the temporarily placed new board along the straight line to the installation position of the old board before being removed and installing the new board at the installation position. How to replace the control panel. A replacement method for replacing the control panel according to claim 4,
Temporarily place a new board, which is a newly installed control panel facing the front of the old board, which is the control panel to be removed as a replacement target, and remove the blocking member of the old board to remove the front of the old board Opening a cable laying hole in
A structure for fixing the casing of the control panel, and a step of removing a detachable bar extending horizontally along the inner peripheral surface on the back side of the casing;
Laying a new cable drawn from the new board to a cable pit opened at the bottom of the old board through the cable laying hole and switching to the new cable;
Removing the old cable connected to the terminal block of the old board from the terminal block and removing the old cable;
The old board is moved toward the new board that has been temporarily placed, and further moved in a direction crossing the direction of the movement in front of the new board, and the installation position of the old board before being removed Removing the old board from a straight line connecting the newly placed new board;
A step of moving the temporarily placed new board along the straight line to the installation position of the old board before being removed and installing the new board at the installation position. How to replace the control panel.

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