JP2020018105A - Control device base, and method for replacing control device - Google Patents

Abstract

To enable secure replacement of the existing control device with a new control device.SOLUTION: A control device base 1 on which each control device 10, 20 is loaded is composed of a frame body having substantially the same shape as the bottom shape of the control device 10, 20, in which each frame piece 2, 2, ... constituting the frame body has each recess 3, 3, ... opened upward and penetrating from inside to outside the frame body. A new control device 20 is temporarily installed adjacent to the existing control device 10 in such a manner to form a space under the bottom face through a temporary base 21. A cable 14 under the installation floor of the control device base 1 is guided to the outside of the control device base 1 through the recess 3 of the control device base 1. The cable 14 guided to the outside of the control device base 1 is connected to the new control device 20 through the space under the bottom face of the temporarily installed new control device 20, the existing control device 10 is removed, and then the new control device 20 is loaded on the control device base 1.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a control device mount and a control device replacement method for more reliably and easily replacing control devices such as a control panel, a power distribution panel, and a relay panel.

  For example, when replacing an existing control panel with a new control panel due to a service life or a failure, etc., a new control panel may be required because the switchboard room is narrow or various devices and facilities are densely packed. In some cases, it is not possible to secure a space for installing a switchboard in the switchboard room. In such a case, a technique of installing a new control panel in an installation space of an existing control panel is known (for example, see Patent Document 1).

In this technique, an existing control panel is lifted (raised) from an installation floor to form a space between the existing control panel and the installation floor. Then, a new cable from under the installation floor is connected to a new control panel via this space, and the existing control panel is removed from the installation space, and then the new control panel is installed in the installation space.

  In addition, there is an apparatus in which an opening is provided in a frame of an existing control panel and a new control panel is installed in an installation space after removing the existing control panel through a new cable through the opening (for example, see Patent Document 2).

Further, a part of the channel base on which the existing control panel is placed is protruded from the existing control panel to form a surplus opening, and the new control panel is removed after removing the existing control panel through a new cable through the surplus opening. Some are installed in an installation space (for example, see Patent Document 3).
It is known (for example, see Patent Document 3).

JP 2007-97340 A JP 2014-64399 A JP-A-2005-82877

  By the way, in the method described in Patent Document 1, since the existing control panel is lifted from the installation floor, all the cables connected to the existing control panel are also lifted. That is, the extra length for lifting is required for all cables, and this method cannot be used if the cables have no extra length.

  Further, since the existing control panel is lifted from the installation floor, a gap is required between the existing control panel and the ceiling, and this method cannot be used when there is no gap for lifting. If this method cannot be used, a new control panel must be installed after the existing control panel is relocated to another location, which requires a great deal of time, labor, and cost. .

  Further, in the method described in Patent Document 2, since an opening is provided in the frame, the frame becomes weak as a frame for supporting the control panel, and since the opening is located at one place, the control device to be newly installed is not provided. The location of the temporary installation will also be limited, which will make replacement work inefficient and will require a longer cable due to the positional relationship between the newly installed temporary control panel and the existing control panel. There is a problem such as not becoming.

  Further, in the method described in Patent Document 3, the channel base must be formed larger than the control panel in advance, which goes against the fundamental problem that the space in the switchboard room is narrow, and furthermore, the excess opening portion Is formed only in one direction when viewed from the existing control device, so that the position of the temporary installation of the newly installed control device is also limited, which makes the replacement work inefficient. There's a problem.

  Therefore, the present invention makes it possible to more reliably and easily replace an existing control device (existing control device) with a new control device (new control device) without being limited by the installation state or the installation environment. An object of the present invention is to provide a control device mount and a control device replacement method.

  The invention according to claim 1 is a frame for a control device on which the control device is mounted, wherein the frame is substantially the same shape as the bottom surface of the control device and is formed of an integral or integral frame. A concave portion is formed on the frame piece and opens upward and penetrates the inside and outside of the frame body.

  The invention according to claim 2 is characterized in that a cover for closing the upper side of the concave portion and the inside and outside of the frame is detachably provided in the concave portion formed in each of the frame pieces.

  The invention according to claim 3 is a control device replacement method for replacing an existing control device with a new control device, wherein the existing control device is installed on an installation floor via a control device mount. The gantry is a frame having substantially the same shape as the bottom surface of the control device, and each frame piece constituting the frame has a concave portion that opens upward and penetrates the inside and outside of the frame. Temporarily installing a new control device adjacent to the control device and forming a space below the bottom surface through the temporary mount, and a cable under the installation floor in the existing control device mount through a concave portion of the control device mount. Deriving the control device out of the gantry, connecting the cable led out of the control device gantry to the newly installed control device through a space below the bottom surface of the newly installed new control device, and the existing control device. After removal, new Characterized in that it comprises the steps of: placing the control apparatus for a gantry control device.

  According to the first and third aspects of the present invention, the control device has a shape substantially the same as the bottom shape of the control device, and is formed of an integral or integral frame body. Since a recess penetrating the inside and outside of the frame is formed, it can be led out of the frame body through a cable to one of the recesses formed in each frame piece while being mounted on the control device base of the existing control device, and When temporarily installing a new control device adjacent to an existing control device, a narrow switchboard room in which a plurality of recesses can be selected to be the most efficient position for cable routing can be selected. The space can be effectively utilized, and the efficiency of replacing the control device can be increased.

  According to the invention of claim 2, since the cover is detachably provided in the concave portion formed in each frame piece of the frame for the control device frame, it is possible to prevent foreign matter from entering the control device frame and invasion of small animals. Can be prevented.

FIG. 2 is a perspective view showing a gantry for a control device according to Embodiment 1 of the present invention. FIGS. 3 to 5 are perspective views illustrating a procedure for replacing an existing control device with a new control device. FIG. 3 illustrates a state in which a new control device is temporarily installed diagonally forward of the existing control device. is there. This is a state in which a cable for new installation is led out of the recess from the state of FIG. FIG. 4 shows a state where a new cable is connected to the new control device from the state of FIG. 3 and the existing cable is removed from the existing control device. 5 shows a state in which the existing control device has been removed from the state of FIG. FIG. 6 shows a state in which the newly installed control device has been moved from the state of FIG. 5 to the place where the existing control device was located, and the relocation has been completed. 2 shows a state in which a new control device is temporarily installed diagonally right behind the existing control device. It is a perspective view which shows the gantry for control apparatuses concerning Embodiment 2 of this invention.

  Hereinafter, the present invention will be described based on the illustrated embodiment.

(Embodiment 1)
FIG. 1 is a perspective view showing a gantry 1 for a control device according to the first embodiment.
The channel base 1 as a control device mount is an integral or integral rectangular frame, and has substantially the same bottom shape as the control devices 10 and 20 as control devices. Is installed on the installation floor F with the channel base 1 interposed therebetween.

  Formed in the center of each frame piece 2, 2,... Constituting the channel base 1 are concave parts 3, 3,.

  Note that the control panels 10 and 20 denote an existing control panel and 20 denotes a new control panel, and the channel base 1 is used so as to be interposed when the existing control panel 10 is installed on the installation floor F. When replacing the existing control panel 10 with the new control panel 20, the channel base 1 is left as it is, the existing control panel 10 is removed, and the new control panel 20 is mounted on the channel base 1.

  The existing control panel 10 and the new control panel 20 have various components, devices, and the like housed in cabinets having the same shape (at least a bottom shape), and have the same structure and function. The existing control panel 10 and the new control panel 20 may have the same structure and function as in the first embodiment, or may have different structures and functions. It is sufficient that at least the bottom shape of the cabinet is substantially the same.

  In the description according to the first embodiment, since the existing control panel 10 and the new control panel 20 are equivalent, only the existing control panel 10 will be described.

  As shown in FIGS. 1 to 4, the existing control panel 10 accommodates various control devices and components (not shown) in a box-shaped cabinet 11 having an open front surface. The components are connected to a cable 13 described later via a terminal block 12 (FIG. 2).

  The cable 13 is provided in a cable pit (not shown) provided below the floor of the installation floor F, and connects the existing control panel 10 with another control device or a control device such as a switchboard or an external device. The connection is made.

  A frame-shaped lower frame (not shown) is provided on the lower surface of the cabinet 11 of the existing control panel 10, and the lower frame is formed to have substantially the same size as the channel base 1, and the cabinet 11 is located at An opening is formed that opens into the opening.

  The opening may be the entire lower surface of the cabinet 11 or a part thereof, and the cable 13 in the cable pit can be drawn into the cabinet 11 through the opening.

  The cable 13 drawn into the cabinet 11 is connected to a desired terminal of the terminal block 12 (FIGS. 2 and 3).

  The cable 14 shown in FIG. 3 is for connecting to the new control panel 20. The cable 13 for the existing control panel 10 and the cable 14 for the new control panel 20 in FIG. ing.

  Next, the procedure for replacing the existing control panel 10 with the new control panel 20 will be described.

  First, as described above, the existing control panel 10 is installed at a predetermined position via the channel base 1, and the cable 13 arranged in the cable pit below the floor of the installation floor F is connected to the lower frame of the lower part of the cabinet 11. Are connected to the terminal block 12 in the cabinet 11 through the open portion of the cabinet 11. In the drawing, three cables 13, 13, 13 are connected to one terminal block 12, but the distribution panel housed in the control panel 10 usually has several to several tens of points. A terminal block is provided, and many cables are wired accordingly.

(Step 1)
A new control panel 20 is temporarily installed diagonally forward of the existing control panel 10 so as to be adjacent to the existing control panel 10. When the new control panel 20 is temporarily installed, the two square members 21, 21 serving as temporary mounts are arranged on the installation floor F, and the new control panel 20 is temporarily installed so as to straddle the square members 21, 21 (FIG. 2). . Accordingly, a space is formed below the newly installed control panel 20 temporarily installed on the square members 21, 21.

(Step 2)
Next, new cables 14, 14, 14 are connected to the newly installed new control panel 20. The new cables 14, 14, 14 are disposed in a cable pit provided under the floor F in the same manner as the existing cables 13, 13, 13 connected to the terminal block 12 of the existing control panel 10. Then, the cables 14, 14, 14 are pulled out and led out from the concave portion 3 on the front side of the channel base 1 on which the existing control panel 10 is mounted (FIGS. 3, 4). In this state, the existing cables 13, 13, 13 are still connected to the terminal block 12 of the existing control panel 10, and function as the control panel 10.

  As described above, the recess 3 needs to be large enough to allow the cables 13, 13, 13 to pass through. However, if it is too large, the strength for supporting the control panel 10 will be insufficient. , Should be selected to the appropriate size.

  Also, in this embodiment, one recess 3 is provided for one frame piece 2 and four recesses 3, 3,... Are provided as a whole, but the present invention is not limited to this and one recess 3 is provided. A plurality of recesses 3 may be provided in the frame piece 2. Further, the position at which the concave portion is provided is not limited to the central portion of the frame piece 2 but may be provided at a position deviated left and right, or may be provided at a different position for each of the frame pieces 2, 2,. It is desirable to determine the formation position and the number of the recesses 3, 3,... In consideration of the number of the cables 13, 13,.

(Step 3)
The new cables 14, 14, and 14 led out of the recess 3 on the front side of the channel base 1 are further extended and connected to the terminal block 12 of the newly installed control panel 20 (FIG. 4). Thereby, the newly installed control panel 20 is also in a charged state, and can function as the control panel 20. This state is a state in which the existing control panel 10 and the new control panel 20 are both connected by the cable 13 or 14, and therefore, the new control panel 20 is installed without the power failure of both the control panels 10 and 20. And can be connected.

(Step 4)
Since the existing control panel 10 and the new control panel 20 are both connected by the cable 13 or 14, the charging of the existing control panel 10 is electrically disconnected and connected to the terminal block 12 of the existing control panel 10. Remove the existing cables 13, 13, 13. FIG. 5 shows a state where the cables 13, 13, 13 are removed from the terminal block 12 of the existing control panel 10, and the existing control panel 10 is further removed.

(Step 5)
From the state of step 4, the new control panel 20 is moved to the position on the channel base 1, that is, the place where the existing control panel 10 was installed (FIG. 6). At this time, the cables 14, 14, 14 connected to the terminal block 12 of the new control panel 20 are returned from the pulled-out state to the cable pits provided under the floor in the channel base 1, and the new control of the existing control panel 10 is controlled. The replacement work for the board 20 is completed. When returning the pulled out cables 14, 14, 14 to the cable pit, the cables 14, 14, 14 are returned into the cable pit without being obstructed because the upper part of the concave portion 3 of the channel base 1 is opened. be able to.

  In the control device replacement method according to the above-described embodiment, all of the newly installed cables 14, 14, and 14 are connected without disconnecting all of the existing cables 13, 13, and 13. The existing cables 13, 13, 13 are detached, but the present invention is not limited to this. Only a minimum of existing cables 13, 13,... .. May be removed, and only the minimum connection of the newly provided cables 14, 14,. In short, it is possible to increase the efficiency of the replacement work of the control device by appropriately performing the charge state in order to secure the charge state or shorten the power failure state as much as possible.

  FIG. 7 is a diagram for explaining a case where the location of the temporary installation of the new control panel 20 is different from the control device replacement method according to the first embodiment. It was temporarily installed at the rear position. This is affected by the location of the new control panel 20 due to problems such as the size of the switchboard room, the arrangement of control devices and equipment therein, and the like.

  When the new control panel 20 is temporarily installed diagonally behind the existing control panel 10 as shown in FIG. 7, the cable 14 can be passed through the recess 3 located on the right side of the channel base 1. That is, since the recesses 3, 3,... Are formed in all of the frame pieces 2, 2,... Of the channel base 1 according to the first embodiment, the recesses 3 can be flexibly adjusted even when the temporary installation positions are different as described above. , 3, ... can be selected.

  In the control device replacement method according to the first embodiment, the replacement work of the same control panel has been described. However, the present invention is not limited to the same control board, and the control panel is replaced with a control panel having a different function. Can also be applied. In short, the present invention can be applied to a case where a new control panel, a control device, a switchboard, and the like are installed in a place where the existing control panel is installed. These control devices may be a control panel, a control device, a switchboard, or a relay panel, as long as they have the same size.

(Embodiment 2)
FIG. 8 is a perspective view showing a channel base 30 according to the second embodiment. The channel base 30 according to the second embodiment is configured such that covers 31, 31,... Are detachably provided in the recesses 3, 3,... Of the channel base 1 according to the first embodiment. Reference numeral 30 has substantially the same shape as the channel base 1 described in the first embodiment.

  The covers 31, 31,... Separately covering the recesses 3, 3,... Of the channel base 30 have a substantially L-shaped angle, and the size of the upper plate 30a is formed to be substantially the same as the upper surface opening of the recess 3. The side plate 30b, which is bent 90 degrees with respect to the upper plate 30a, also has a longer upper plate 30a, and small holes 32, 32 are formed at both end portions thereof.

  The cover 31 thus formed is positioned such that the upper plate 31a is located at the upper opening of the recess 3 and the side plate 30b covers the recess 3 from inside the frame piece 2. Then, the screws 33, 33 are screwed to the frame piece 2 through the small holes 32, 32 formed in the side plate 30b of the cover 30. This allows the cover 30 to cover the upper side and the side of the recess 3, thereby preventing foreign substances from entering the channel base 30 and invading small animals.

  FIG. 8 shows a state in which one cover 31 covers one recess 3, one cover 31 is separated from the recess 3, and the other two recesses 3, 3 have no covers 31, 31. .

  Also, since the cover 31 covers the upper surface opening of the concave portion 3 of the channel base 30 flush, the cover 31 can be brought into surface contact with the lower frame of the cabinet 11 of the control panel 10 placed here, and is placed. The control panel 10 can be stabilized.

  In the channel base 30 according to the second embodiment, the cover 31 is screwed from the inside of the frame. However, the present invention is not limited to this, and the cover 31 may be screwed from the outside. Depending on the installation location of the channel base 30, the cover 31 can be easily screwed from the outside if there is enough space around it. However, if there is no space around, the cover 31 should be screwed from inside. Good workability. The timing at which such a cover 31 is attached to the channel base 30 is performed immediately after the existing control panel 10 is removed, so that the efficiency of replacement work of the control devices 10 and 20 can be improved.

  As described above, according to the control device base and the control device replacement method, the recesses 3, 3,... Are formed in the frame pieces 2, 2,... Of the channel base 1 on which the existing control panel 10 is installed. Therefore, the cables 14 and 14 can be passed through the concave portion 3, and if the existing control panel 10 is removed from the passed state, the cables 14 and 14 are not obstructed by anything, and Also, when the new control panel 20 is relocated, it can be easily and reliably performed.

  Moreover, since the recesses 3, 3, ... are formed in the respective frame pieces 2, 2, ..., when the new control device 20 is temporarily installed adjacent to the existing control device 10, the plurality of recesses 3 are used. , 3,..., It is possible to select the concave portion 3 at the most efficient position (not limited to one, but a plurality of positions) with respect to the routing of the cables 14, 14, and the space in the narrow switchboard room can be selected. However, the replacement work of the control device can be performed efficiently.

  Furthermore, since the channel base 1 is formed integrally or integrally, it is strong and can stably support the control panel 20 as a gantry, and does not deform even if it is slightly bumped during relocation. Therefore, workability can be improved. It should be noted that the term “integral with the frame body” may be used as an integral part by joining separate frame pieces by welding or the like, or may be integrated by joining with a coupling means such as a bolt and nut.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above-described embodiment, and even if there is a design change or the like within a range not departing from the gist of the present invention, the present invention is not limited thereto. Included in the invention. For example, in the first embodiment, the concave portion 3 is a rectangular space, but is not limited thereto, and may be a semicircular type or a semielliptical type. In short, any cable may be used as long as it penetrates the inside and outside of the frame so that the cable 13 can communicate with the inside and outside of the frame.

  Further, in the first embodiment, new cables 14, 14, 14 are connected to the newly installed control panel 20, but the existing control panel 10 and the newly installed control panel 20 are completely the same, and If the power failure state is allowed, the existing cables 13, 13, 13 may be removed from the existing control panel 10 and then used as the cables 13, 13, 13 of the new control panel 20.

F installation floor 1 channel base (control device mount)
2 Frame piece 3 Recess 10 Existing control panel (control device)
11 Cabinet 12 Terminal block 13 Existing cable 14 New cable 20 New control panel (control device)
21 Square lumber (temporary stand)
30 channel base (control device mount)
31 cover 31a upper plate 31b side plate 32 small hole 33 screw

Claims (3)

A control device mount on which the control device is mounted,
Consisting of an integral or integral frame with substantially the same shape as the bottom surface of the control device,
On each of the frame pieces constituting the frame body, a concave portion was formed that opened upward and penetrated inside and outside of the frame body,
A mount for a control device, characterized in that: 2. The control device gantry according to claim 1, wherein a cover for closing the upper side of the concave portion and the inside and outside of the frame is detachably provided in the concave portion formed in each of the frame pieces. 3. A control device replacement method for replacing an existing control device with a new control device,
The existing control device is installed on the installation floor via the control device stand,
The control device base is a frame having substantially the same shape as the bottom surface of the control device, and each of the frame pieces constituting the frame has a concave portion that opens upward and penetrates the inside and outside of the frame. ,
Temporarily installing a new control device adjacent to the existing control device and forming a space below the bottom surface through the temporary mount;
Leading the cable under the installation floor in the existing control device gantry through the recess of the control device gantry to the outside of the control device gantry,
Connecting the cable led out of the control device base to the newly installed control device through the space below the bottom surface of the newly installed newly installed control device;
Mounting the newly installed control device on the control device mount after removing the existing control device.

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