JPH0564325A - Cubicle - Google Patents

Abstract

PURPOSE:To facilitate wiring work while avoiding damage or disconnection of wiring due to opening/closing of door, and the like. CONSTITUTION:Rollers 5a of a supervisory controller 5 are guided along the rail 38 at a draw-out section 31 and the supervisory controller 5 is fixed movably with respect to the draw-out section 31. The supervisory controller 5 is provided with a fixing arm 39 rotatable around a supporting point 39a wherein the fixing arm 39 is provided with notches to be engaged, respectively, with the draw-out section and the fixed section. The draw-out section 31 is provided with a draw-out section side fixing screw 40 to be engaged with the draw-out section engaging notch whereas the fixed section 37 is provided with a fixed section side fixing screw 41 to be engaged with the fixed section side notch.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a closed type switchgear in which a drawer is housed.

[0002]

2. Description of the Related Art A drawer type high voltage combination starter will be described as an example of a conventional closed type switchboard. Generally, the drawer type high voltage combination starter has a structure as shown in FIG. In the figure, 1 is a closed box consisting of a cover 1a and a door 1b, 2 is a closed component except for necessary openings, and 31 is a drawer-type high pressure combination starter housed inside the component 2. Is the drawer part of. The door 1b is provided with a monitor control device corresponding to a drawer type high voltage combination starter such as an operation switch 5a, an instrument 5b, an indicator lamp 5c and a protective relay 5d. In some cases, the operation switch 5a, the instrument 5b, the indicator light 5c, and the protective relay 5d may be integrated and attached as the monitoring control device 5. Further, 6 is a bus bar for commonly connecting adjacent closed boxes. Such a pull-out type high-voltage combination starter is used by stacking one stage or two or more stages.

FIG. 4 is a vertical sectional side view of the compartment 2 in which the drawer portion 31 is housed. A high voltage AC electromagnetic contactor 32, a current limiting type power fuse 33, an instrument transformer 34, an instrument current transformer 35, a main circuit disconnector 36, etc. are assembled in the drawer 31 on the same frame. .. Reference numeral 37 denotes a fixing portion fixed in the closed box 1, on which an external connection terminal 37a,
A guide rail for the insulating cylinder 37b and the draw-out portion 31 is provided.

The drawer portion 31 is movable in the direction of the arrow C in the figure by means of wheels 42.
Each can be set to the pull-out position. As for the operating position, the main circuit disconnection part 36 is connected to the external connection terminal 3 in order that the drawer type high voltage combination starter fulfills a predetermined function.
7a, and the control circuit is also in the connected state. The test position is a position where a safe insulating distance is provided between the main circuit disconnecting section 36 and the external connection terminal 37a so that the operation test of the device in the box can be performed, and the control circuit is in the connected state. The disconnection position is a position where the control circuit is in a disconnection state with a safe insulation distance between the main circuit disconnection portion 36 and the external connection terminal 37a while being mechanically connected to the closed box. Further, the pulling-out position is a position where the drawer 31 can be pulled out from the closed box by being mechanically and electrically disconnected from the closed box. In some cases, the control circuit has a manual connection type disconnecting section, and the test position and the disconnecting position are the same.

[0005]

However, in the above-mentioned prior art, since the monitor and control device is attached to the door, when wiring between the monitor and control device and the drawer part, the drawer part is placed in the compartment. Wiring must be done in a housed state, and the wiring work in a narrow compartment is very complicated and causes a reduction in work efficiency.

The wiring work is performed between the door of the closed box and the fixed portion in the compartment, and between the fixed portion and the drawer portion.
Although the wiring is performed in places, since the wiring has flexibility, stress is applied to the wiring when the door is opened / closed and the drawer part is moved, and defects such as damage or disconnection of the wiring occur.

An object of the present invention is to provide a closed type switchboard which can perform wiring work relatively easily and can avoid the occurrence of defects such as damage and disconnection of wiring.

[0008]

In order to achieve the above object, the present invention provides a drawer type opening / closing device which is movable in the door side and the opposite door side in a closed box provided with a door in the front part. In a closed type switchboard in which a monitoring control device such as an operation switch, a meter, an indicator lamp, and a protective relay corresponding to the switching device is stored on the front surface of the door, the monitoring control device is moved to the switching device. In addition to being freely attached, an opening for fitting the monitoring control device is formed in the door, and a fixing means for fixing the monitoring control device at the position of the opening when the door is closed is provided. is there.

Further, according to the present invention, a drawer type switchgear which can be moved to the door side and the other side of the door is housed in a closed box provided with a door at the front, and an operation corresponding to the switchgear is carried out. In a closed type switchboard in which a monitoring control device such as a switch, an instrument, an indicator light, and a protective relay is provided on the front surface of the door,
The monitoring control device is movably attached to the opening / closing device, an opening portion into which the monitoring control device is fitted is formed in the door, and the monitoring control device is located at the position of the opening portion when the door is closed. And a locking means for locking the movement of the monitoring control device when the switchgear is taken out of the closed box and transported.

Further, according to the present invention, a drawer type switchgear which is movable on the door side and the other side of the door is housed in a closed box provided with a door on the front side, and an operation corresponding to the switchgear is performed. In a closed type switchboard in which a monitor control device such as a switch, an instrument, an indicator light, and a protective relay is provided on the front surface of the door, the monitor control device is movably attached to the switchgear, and the monitor control device is fitted. Is formed in the door, and a pressing means for pressing the monitoring control device from the inside is provided in the opening when the door is closed.

[0011]

According to the above construction, when the switchgear is housed in the closed box, the monitor and control device is fixed by the fixing means, and when the door is closed in this state, the monitor and control device is placed in the opening of the door. Once fitted, the monitoring and control device can be observed from outside the door. Since the monitor control device is movably attached to the switchgear, even if the monitor control device is fixed to the opening position of the door, the switchgear is operated at the operating position, the test position,
It can be easily moved to each position of the disconnection position.

Further, when the switchgear is taken out of the closed box and transported, the monitoring control device movably attached to the switchgear moves. Therefore, in order to prevent this,
The monitoring control device is locked to the switchgear by the locking means.

Further, even if the monitor control device is pressed from the inside against the opening when the door is closed, the monitor control device can be fixed at the position of the opening.
The switchgear can be moved to each of the operating position, test position and disconnection position.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The same parts as those in the conventional technique are designated by the same reference numerals.

FIG. 1 shows a pull-out type high-voltage combination star.
FIG. 2 is a side view of the pull-out portion, and FIG. 2 is a vertical cross-sectional side view of the compartment containing the pull-out portion. In the drawing, the drawing unit 31, the high-voltage AC electromagnetic contactor 32, the current limiting type power fuse 33, the instrument transformer 34, the instrument current transformer 35, and the main circuit disconnecting unit 36 have the same configurations as those of the prior art. ing. The monitoring controller 5 is provided with a roller 5a, and the roller 5a is guided by a rail 38 extending from the pull-out portion 31 so that the monitoring controller 5 slides in the P direction. Further, an operation opening 1c is formed in the door 1b, and when the monitoring control device 5 is fitted in the operation opening 1c, it is possible to observe or operate the monitoring control device 5 from outside the door 1b. You can

Reference numeral 39 denotes a fixing arm for fixing the monitor control device 5, one end side of which is rotatably attached to a support point 39a on the monitor control device 5. The fixing arm 39 is formed with a notch 39b for engaging a drawer portion and a notch 39c for engaging a fixing portion. In addition, the pull-out portion side fixing screw 40 that engages with the pull-out portion engaging notch 39 b is provided in the pull-out portion 31.
A fixing portion side fixing screw 41 that engages with the fixing portion engaging notch 39c is attached to each of 7.

In the above structure, the fixing arm 39 is set to the position A at the time of transporting the pulling-out portion 31, the pulling-out position, and the position during movement from the disconnection position to the pulling-out position.
The notch 39b for engaging the drawer portion is engaged with the drawer side fixing screw 40 to fix the monitoring control device 5 to the drawer portion 31. As a result, the movement of the monitor control device 5 is locked, and the monitor control device 5 can be safely transported.

When the drawer portion 31 is housed in the compartment (see FIG. 2), the engagement between the drawer portion engaging notch 39b and the drawer portion side fixing screw 40 is released, and the fixing arm 39 is fixed. The fixed portion engaging notch 39c and the fixed portion side fixing screw 41 are engaged with each other by rotating from the position A to the position B.
As a result, the monitor control device 5 is fixed to the fixing portion 37,
When the door 1b is closed, the monitoring control device 5 fits in the operation opening 1c, and only the drawer 31 can move. For example, even if the drawer part 31 is moved to the operating position (the position indicated by the chain double-dashed line in the figure), the movement stroke appears between the monitoring control device 5 and the moving part of the drawing part 31, and the monitoring control device 5 , Door 1
It is maintained at a position to close the operation opening 1c of b. Therefore, the closed state of the closed box is maintained unless the door 1b is opened at the operating position, the test position, the disconnecting position, and all the positions where the drawer 31 is moving between the positions. It is to be noted that maintaining the monitoring control device 5 at the position where the operation opening 1c of the door 1b is closed at the disconnecting position, the test position, and the operating position may be performed by, for example, monitoring control device 5 and pulling out without depending on the present embodiment. It is also possible to provide a spring between the moving parts of the part 31 and always apply pressure so as to press the monitoring control device 5 against the door 1b side.

[0019]

As described above, according to the present invention,
There is no wiring from the components in the closed box to the door, and damage and disconnection of the wiring due to opening and closing of the door can be eliminated, improving the reliability of the switchboard.

Further, the wiring is performed between the moving part of the drawer of the drawer type switchgear and the monitor and control device attached to the drawer, so that the drawer can be singly wired and the work efficiency is improved. Can be planned.

[Brief description of drawings]

FIG. 1 is a side view of a drawer type high-voltage combination starter drawer according to the present invention.

FIG. 2 is a side view showing a state where the drawer portion of FIG. 1 is housed in a compartment.

FIG. 3 is a configuration diagram of a conventional pull-out type high voltage combination starter.

FIG. 4 is a side view showing a state inside a conventional compartment.

[Explanation of symbols]

 1 Closed Box 1b Door 2 Compartment 5 Monitoring and Control Device 5a Roller 31 Drawer 32 High-voltage AC Electromagnetic Contactor 33 Current Limiting Type Power Fuse 34 Meter Transformer 35 Meter Alternator 36 Main Circuit Disconnection 37 Fixed Part 38 Rail 39 Fixing arm 39b Drawer engaging notch 39c Fixing part engaging notch 40 Drawer side fixing screw 41 Fixing part side fixing screw

Claims (5)

[Claims] 1. A closed box provided with a door at a front portion thereof accommodates a drawer-type opening / closing device movable to the door side and the opposite door side, and an operation switch, an instrument, and a switch corresponding to the opening / closing device. In a closed type switchboard in which a monitoring control device such as an indicator light and a protective relay is provided on the front surface of the door, the monitoring control device is movably attached to the opening / closing device, and an opening portion into which the monitoring control device is fitted is provided. A closed type switchboard which is formed on the door and is provided with fixing means for fixing the monitoring control device to the position of the opening when the door is closed. 2. A drawer-type switchgear that is movable to the door side and the other side of the door is housed in a closed box provided with a door at the front part, and an operation switch, an instrument corresponding to the switchgear, In a closed type switchboard in which a monitoring control device such as an indicator light and a protective relay is provided on the front surface of the door, the monitoring control device is movably attached to the opening / closing device, and an opening portion into which the monitoring control device is fitted is provided. Fixing means formed on the door and fixing the monitoring control device to the position of the opening when the door is closed, and movement of the monitoring control device when the switchgear is taken out of the closed box and conveyed. And a locking means for locking the closed type switchboard. 3. The closed type switchboard according to claim 2, wherein the fixing means and the locking means share the same member. 4. A drawer-type switchgear that is movable to the door side and the other side of the door is housed in a closed box provided with a door at the front part, and an operation switch, an instrument corresponding to the switchgear, In a closed type switchboard in which a monitoring control device such as an indicator light and a protective relay is provided on the front surface of the door, the monitoring control device is movably attached to the opening / closing device, and an opening portion into which the monitoring control device is fitted is provided. A closed type switchboard which is formed on the door and is provided with a pressing means for pressing the monitor control device from the inside at the opening when the door is closed. 5. The closed switchboard according to claim 1, 2, or 4, wherein the monitoring control device is movable in the same direction as the moving direction of the switchgear.