JP4578273B2 - Functional unit of control center and manufacturing method thereof - Google Patents

Description

 The present invention relates to a functional unit of a control center, which is a circuit configuration unit of the control center, and a manufacturing method thereof.

In JEM-1195, a functional unit of a control center is defined as a circuit configuration unit of a motor control center including main circuit and auxiliary circuit devices necessary to satisfy a certain function.
A fixed functional unit that is fixedly attached to the component of the outer box of the control center and can be completely disconnected from the control center or replaced with equipment only when the main circuit is in a power failure state. There is a drawer function unit (see Patent Document 1) provided with a drawer / holding mechanism that can be safely disconnected from the control center even when the main circuit is in a charged state, or can be replaced.

JP2003-169408 (pages 3-4, FIG. 4) JP 2001-197621 A (pages 4-8, FIG. 1)

  The functional unit includes a part that receives power from the main circuit, a part that sends power to the load, and a control device unit that satisfies a certain function. These are arranged and wired in the functional unit housing. The drawer-type functional unit includes a drawer / holding mechanism that can safely disconnect the main circuit of the functional unit from the control center and replace the device even when the main circuit is in a charged state. The storage equipment stored in the functional unit often changes according to customer specifications. For this reason, each time the storage device changes, it is necessary to design in consideration of the positions of the four components of the functional unit that receives the power, the portion that sends power to the load, the control device, and the drawer / holding mechanism. was there.

In Patent Document 2, the frame of the unit device of the control center is divided in the vertical direction, and the divided upper and lower frames are connected by adjusting means capable of adjusting the size in the vertical direction, and the size of the circuit article to be stored has changed. Something that can be adjusted from time to time is shown.
However, this Patent Document 2 has a problem that the frame can be adjusted only in the height direction by changing the circuit article to be stored.

 The present invention has been made in order to solve the above-described problems, and divides the constituent members into at least a storage device mounting portion and other portions, so that the design associated with the specification change of the storage device can be easily performed. It is an object of the present invention to obtain a functional unit of a control center and a manufacturing method thereof.

In the functional unit of the control center according to the present invention, it is configured to be attached to and detached from the control center, and in the functional unit of the control center that houses the storage device inside, the mounting plate on which the storage device with many specifications changes is mounted When, a top plate and side plates, the connection function of supplying electric power to the function and the load for performing the functions and bus to perform lead-retaining functional units, and each divided by function, top plate, a functional unit by latch The side plate has a function of supplying power to the load and a function of drawing and holding the functional unit.

As described above, the present invention is configured to be attached to and detached from the control center, and in the functional unit of the control center for storing the storage device therein, the mounting plate to which the storage device with many specifications changes is attached, The top plate and side plate are divided by function according to the function of drawing / holding the functional unit, the function of connecting to the bus and the function of supplying power to the load, and the top plate is pulled out of the functional unit by a latch. -A function to hold and a function to connect to the busbar, and the side plate has a function to supply power to the load and a function to pull out and hold the function unit. It is possible to limit the design range accompanying the specification change to the mounting portion, and it is possible to improve the design efficiency and reduce the types of parts.

Embodiment 1 FIG.
1 is a block diagram showing an example of a panel configuration of a control center according to Embodiment 1 of the present invention.
In FIG. 1, the control center 1 is a low-voltage switchboard having a bus 2 connected to a power source and divided by a partition plate 4 for each functional unit 3.
The functional unit 3 is held on the partition plate 4 by the drawer / holding mechanism 5. Further, it is held by the drawer / holding mechanism 6 in the casing of the control center 1.

FIG. 2 is a block diagram showing functional units of the control center according to Embodiment 1 of the present invention.
In FIG. 2, the functional unit 3 is divided | segmented into each structural member of the top plate 31, the side plate 32, the side plate 33, and the attachment plate 34 (attachment part).
The top plate 31 includes a drawer / holding mechanism 5 for holding the functional unit 3 on the partition plate 4, and a connector 3 f for connecting the bus bar 2 and the functional unit 3. 2 is a structural member having a function of performing connection with 2.
The side plate 32 includes a drawer / holding mechanism 6 for holding the functional unit 3 in the casing of the control center 1 and a device 3h with a low change frequency, and is a casing for increasing the strength of the left side of the unit. At the same time, it is a structural member having the functions of drawing / holding the functional unit 3 and mounting the device.
The side plate 33 includes a connector 3j for sending electric power from the functional unit 3 to the load, and a drawer / holding mechanism 6, and is a casing for increasing the strength of the right side surface of the unit. It is a structural member having a function of drawing / holding the functional unit 3.
The mounting plate 34 is a storage device for the functional unit 3, the circuit breaker 3 m, the operation for operating the circuit breaker 3 m, the electromagnetic switch 3 o, the thermal overload relay 3 p, the relay 3 q, the leakage detection relay 3 r, A panel 3u in which a transformer 3s, a terminal block 3t, and switches and lamps are arranged together is attached, and is a component member specializing in attaching storage devices that are frequently changed in specifications.
In the above description, the functional unit 3 is divided into the constituent members of the top plate 31, the side plate 32, the side plate 33, and the mounting plate 34, but the present invention at least includes the mounting plate 34 and other constituent members. Can be divided by function.

FIG. 3 is an explanatory view showing the drawer / holding mechanism of the functional unit of the control center according to the first embodiment of the present invention.
In FIG. 3, the unit drawer / holding mechanism 5 attached to the top plate 31 holds the functional unit 3 by making the latch 5e hooked in the slot provided in the partition plate 4, and makes the latch 5e undrawable. If not, it is a mechanism that enables the functional unit 3 to be pulled out.
Further, the unit drawer / holding mechanism 6 is attached to the side plates 32 and 33. By hanging the latch 6f on the control center casing 1a, the function unit 3 is held and cannot be pulled out. This is a mechanism that enables the unit 3 to be pulled out.

  FIG. 4 is a flowchart showing the manufacturing process of the functional unit of the control center according to the first embodiment of the present invention.

Next, the operation will be described.
In the functional unit of the control center configured as described above, the functional unit 3 is divided at least into the mounting plate 34 and other structural members according to function, so the mounting plate 34 is designed when the specifications of the storage device are changed. All that is required is to improve design efficiency.
Further, by using a structure divided by function, the divided components can be produced in parallel and inspected in parallel, and the work period required for the production of the functional unit can be shortened and the production efficiency can be improved.

FIG. 4 shows a manufacturing process when functional units are divided and produced by function.
In the conventional manufacturing method, as shown in FIG. 4A, assembling the busbar connection part (step 1), assembling the power supply part (step 2), attaching the equipment (step 3), attaching the drawer / holding mechanism (step 4). ) In sequence, then busbar connection section inspection (step 5), power supply section inspection (step 6), equipment inspection (step 7), drawer / holding mechanism inspection (step 8) are sequentially performed to complete the functional unit. .
In the conventional manufacturing method, it takes 8 steps to complete as described above, but in the present invention, as shown in FIG. 4 (b), the apparatus is attached, the drawer / holding mechanism is attached, the bus connection part is assembled, and the power supply part. Assembly is performed in parallel (step 11), and equipment inspection, drawer / holding mechanism inspection, bus connection section inspection, and power supply section inspection are performed in parallel (step 12), and finally each function is assembled. (Step 13) is performed to complete the functional unit.
As described above, according to the method of FIG. 4B, it is possible to assemble and inspect for each component in parallel, and manufacture in three steps is possible.

  The first embodiment is not limited to the above-described functions and the number of divisions provided to the divided component members, except that the mounting plate 34 and other component members are divided according to function.

According to the first embodiment, it is possible to limit the design range accompanying the specification change of the storage device in the functional unit to the device mounting plate, and it is possible to improve the design efficiency and reduce the types of parts.
Moreover, by making the functional unit into a divided structure for each constituent member, parallel production by split production in which inspection is performed for each constituent member is possible, and the work period required for the functional unit production can be shortened and the production efficiency can be improved.

It is a block diagram which shows an example of the panel structure of the control center by Embodiment 1 of this invention. It is a block diagram which shows the functional unit of the control center by Embodiment 1 of this invention. It is explanatory drawing which shows the drawer / holding mechanism of the functional unit of the control center by Embodiment 1 of this invention. It is a flowchart which shows the manufacturing process of the functional unit of the control center by Embodiment 1 of this invention.

Explanation of symbols

1 control center, 1a control center housing, 2 busbars,
3 Control center function unit, 31 Top plate, 32, 33 Side plate,
34 mounting plate, 3f contact, 3h equipment, 3j connector, 3m circuit breaker,
3n operation, 3o electromagnetic switch, 3p thermal load relay,
3q relay, 3r leakage detection relay, 3s transformer, 3t terminal block,
4 Partition plate, 5, 6 Function unit drawer / holding mechanism, 5e, 6f Latch.

Claims (2)

In the function unit of the control center that is configured to be attached to and detached from the control center and stores the storage device inside,
The mounting plate, top plate, and side plate to which the above storage devices with many specification changes are attached, function to pull out and hold the functional unit, function to connect to the busbar, and function to supply power to the load, respectively. Split separately,
The top plate has a function to connect the function and bus to perform lead-retention of the functional unit by latch,
The functional unit of the control center, wherein the side plate has a function of supplying electric power to the load and a function of drawing and holding the functional unit. In the manufacturing method of the functional unit of the control center, which is configured to be attached to and detached from the control center and stores the storage device inside,
The mounting plate, top plate, and side plate to which the above storage devices with many specification changes are attached, function to pull out and hold the functional unit, function to connect to the busbar, and function to supply power to the load, respectively. Split separately,
The top plate has a function to connect the function and bus to perform lead-retention of the functional unit by latch,
The side plate has a function of supplying power to the load and a function of pulling out and holding the functional unit.
Producing the divided mounting plate, the top plate and the side plate in parallel;
And the manufacturing method of the functional unit of a control center characterized by including the process of test | inspecting the said mounting plate produced in parallel by this process, the said top plate, and the said side plate in parallel.

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