KR101627678B1 - Three-stage withdrawal port device of the low-pressure motor control panel unit - Google Patents

Three-stage withdrawal port device of the low-pressure motor control panel unit Download PDF

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Publication number
KR101627678B1
KR101627678B1 KR1020150134056A KR20150134056A KR101627678B1 KR 101627678 B1 KR101627678 B1 KR 101627678B1 KR 1020150134056 A KR1020150134056 A KR 1020150134056A KR 20150134056 A KR20150134056 A KR 20150134056A KR 101627678 B1 KR101627678 B1 KR 101627678B1
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KR
South Korea
Prior art keywords
power plug
unit
motor control
control panel
plug
Prior art date
Application number
KR1020150134056A
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Korean (ko)
Inventor
최인호
이재라
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선도전기주식회사
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Priority to KR1020150134056A priority Critical patent/KR101627678B1/en
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Publication of KR101627678B1 publication Critical patent/KR101627678B1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00—Switchgear having carriage withdrawable for isolation
    • H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
    • H02B11/127—Withdrawal mechanism
    • H02B11/133—Withdrawal mechanism with interlock

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)

Abstract

Provided is a three-stage withdrawal device of a low pressure motor control panel unit. In a state in which a unit of a low pressure motor control panel is connected to a fixed distribution bus bar, a distributor, and a tertiary control plug, the unit in a draw-out state is manually moved to a disconnected position in a state of being connected to a secondary power plug and the tertiary control plug, and the unit is moved to a test position and a connected position by moving only a primary power plug in a screw manner. Thus, when the connection of the secondary power plug and the tertiary control plug and the connection of the primary power plug are separated, connection pressure at each connected position can be lowered, whereby impact to the distributor is reduced and an operator can draw in and out the unit with less power when the unit is connected.

Description

[0001] The present invention relates to a three-stage withdrawal port device for a low-voltage motor control panel unit,

When the unit of the low-voltage motor control panel is connected to the fixed distribution booth bar, distributor and tertiary control plug, the unit moves from the draw-out state to the discon- nected position via the secondary power plug and the tertiary control plug Moving manually in the connected state and moving to the Test Position and Connected Position allows only the primary power plug to move in the screw action thereby providing a secondary power plug and a tertiary control plug connection, When the connection is disconnected, the connection pressure at each connection position is lowered so that the shock of the distribution device is reduced at the time of connection and the operator can perform the pulling-out operation of the unit with a small force. .

A general low-voltage motor control panel is a centralized control system that is used in general industrial facilities such as power plant, petrochemical plant, cement plant, water treatment plant, steel plant, special industrial facility or offshore plant or ship.

The low-voltage motor control panel incorporates a low-voltage motor control unit, which includes a primary power plug, a secondary power plug, a tertiary control plug, a panel and a breaker switch, in a fixed distribution containing distribution busbar, distributor and tertiary control plug And can be connected in a stepwise manner.

The low-voltage motor control panel unit is drawn out by the user and constitutes the connecting position, the test position and the disconnection position according to the unloading position. Here, the conventional low-voltage electric motor control panel unit can not be stopped at the test position when it is drawn out with a strong force, and can be taken out to the disconnection position or separated from the low-voltage electric motor control panel.

As a conventional technique for solving the above problems, a three-position handle device for a motor control center is disclosed in Japanese Patent Application Laid-Open No. 2001-0005627 (published Jan. 17, 2012)

To connect the MCC unit with the primary and secondary power plugs and disconnect switches to a distribution unit including distribution busbar, tertiary control jack and power line to control the motor applied to industrial plant and offshore plant or ship A three-position handle device for a motor control center,

The handle device is installed in the door of the MCC unit,

A handle for adjusting a withdrawal position of the dispensing apparatus to a connection position, a test position, and a disconnection position is inserted,

A rectangular bar having a stroke distance in the forward and backward directions is connected by bolts when the MCC unit is adjusted to the three-tiered entrance / exit position from the rotation of the handle by 90 degrees,

At the end of the square bar, when the handle is rotated clockwise and counterclockwise, it is combined with the screw nut to accurately position the MCC unit at the connection position, the test position, and the disconnection position while maintaining the forward and backward stroke distance of the square bar accurately And a position adjusting screw is formed.

However, in the process of adjusting the unit using the above-described handle device, the respective plugs formed in the unit are drawn in and out simultaneously, so that the impact of the unit due to the pulling-out occurs due to the high connection pressure. .

Also, since each plug is pulled in and out at once, it is difficult for the user to pull in and out, and the power is consumed.

Therefore, it is possible to move the secondary power plug, the tertiary control plug and the primary power plug independently from each other in the process of pulling the unit into and out of the control panel, so that the disconnection position and the movement to the test position and the connection position can be easily There is a need to provide a new type of three-stage input / output device capable of preventing a user's safety accident caused by an impact by reducing an impact generated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a low-voltage electric motor control unit in which, when a unit of a low-voltage electric motor control panel is connected to a fixed distribution busbar, Movement to Disconnected Position is manual and movement to Test Position and Connected Position is performed by moving only the primary power plug to the screw operation to connect the secondary power plug and the third control plus A new type of low-voltage electric motor control panel unit that can reduce the impact of the distribution device at connection and reduce the impact on the connection at each connection position when the connection and the primary power plug connection are separated. And to provide a simple drawing-out apparatus.

Another object of the present invention is to provide a function of preventing an operation error from occurring due to the restriction of the rotation of the outgoing entry value by inserting the lever connected to the breaker operation shaft into the screw when the breaker is in the ON state And a three-step drawing-out apparatus of a low-voltage motor control panel unit.

In order to achieve this object,

According to an aspect of the present invention,

A primary power plug 3, a breaker 4, a tertiary control plug 5, a secondary power plug 6 and a distributing device 7 are assembled in the electric motor control panel on which the distribution bus bar 2 is formed In a three-stroke draw-in / take-in device of a low-voltage electric motor control panel unit to be assembled,

The primary power plug 3 is assembled in a slidable manner from the bottom surface of the unit 1,

A through hole 11 is formed in the longitudinal direction and a support plate 12 is formed at the center of the outer side of the primary power plug 3 so as to be rotatable with respect to the primary power plug 3, (100) in which a plurality of engagement grooves (14) and grooves (15) communicating with the through holes (11) are integrally formed on the other side;

And the other end of the first control plug 3 is engaged with the threaded portion 13 so that the first control plug 3 is retracted in accordance with the rotation of the input / (20).

A lever 50 having one side assembled to the rotary shaft of the circuit breaker 4 and the other side inserted into the input / output device 100;

Further comprising a hole (16) on one side of the take-out and input device (100)

Here, when the breaker 4 is ON, the end portion of the lever 50 is inserted into the hole 16 of the I / O unit 100 to mechanically prevent rotation of the I / O unit 100.

The input / output device 100 is smoothly rotated by further including a handle 200 having a key 210 inserted into each groove 15 of the I / O device 100 at one side thereof.

A wire 40 is inserted into the through hole 11 of the outgoing input / output device 100 and the end of the wire 40 is connected to the circuit breaker 4, Is inserted and the wire (40) is pushed to turn off the breaker (4) so that the primary control plug (3) can safely be taken out.

As described above, in the three-step drawing input / output device of the low-voltage electric motor control panel unit according to the present invention, when the unit of the low-voltage electric motor control panel is connected to the fixed distribution booth bar, the distributing device and the third control plug, The movement to the position is manual and the movement to the test position and the connection position is performed by moving the primary power plug only by the screw operation to separate the secondary power plug and the tertiary control plus connection and the primary power plug connection The connecting pressure at each connecting position is small so that the shock of the distributing device at the time of connection is small and the operator can perform the pull-out operation with a small force, thereby securing operational safety of the low-voltage electric motor control panel.

In addition, the breaker can be turned on / off at the disconnection position and the connection position of the unit, the breaker can not be turned on at the test position, and the lever connected to the breaker operation shaft Is inserted into the draw-in / take-out apparatus and is connected by a mechanical interlock, so that no operation error occurs.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

1 is a perspective view showing an internal configuration of a low-voltage electric motor control panel unit according to the present invention in a state in which a three-
Fig. 2 is a plan view showing an internal configuration of the low-voltage electric motor control panel unit according to the present invention in a state in which the three-
Fig. 3 is a perspective view of a third embodiment of the low-voltage electric motor control panel unit according to the present invention.
4 is a cross-sectional view taken along the line AA in Fig. 3 for showing the connection state of the three-way drawing-out apparatus of the low-voltage electric motor control panel unit according to the present invention and the spring
5 is a perspective view showing a connection state of the three-way drawing input / output device and the breaker of the low-voltage electric motor control panel unit according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

FIG. 1 is a perspective view showing an internal structure of a low-voltage electric motor control panel unit according to the present invention in a state in which a three-way drawing-out apparatus is installed in a unit. FIG. FIG. 3 is a perspective view showing a third embodiment of the low-voltage electric motor control panel unit according to the present invention, FIG. 4 is a perspective view showing a three- FIG. 5 is a perspective view illustrating a connection state of the three-way drawing input / output device and the breaker of the low-voltage electric motor control panel unit according to the present invention.

As shown in the drawing, a three-step drawing input apparatus (hereinafter referred to as "drawing input apparatus") 100 of a low-voltage motor control panel unit according to the present invention includes a unit The primary power plug 3 is connected to the distribution bus bar 2 in a state where the unit is connected to the electric motor (not shown) so that the primary power plug 3 can be independently drawn in and out. The connection pressure at each connection position is small so that the impact of the unit at the time of connection is small and the operator can easily and safely perform the pull-out operation even with a small force.

That is, as shown in the drawing, the drawing input / output device 100 is partially inserted into the groove 1a formed in the unit 1 to fix the assembled position of the drawing input / output device 100, And a screw portion 13 is formed on one side of the support plate 12 and a plurality of engagement grooves 14 and grooves 15 communicating with the through holes 11 are formed on the other side of the support plate 12, ) Are integrally formed.

In addition, the input / output device 100 rotates the input / output device 100 by inserting the key 210 of the handle 200 into each groove 15 formed at one side.

The primary power plug 3 connected to the distribution bus bar 2 is assembled in a slidable form on the bottom surface of the unit 1 and is connected to the outgoing input device 100 by the load bar 20, And is moved forward and backward by the driving of the input device 100.

That is, the rod bar 20 has a protrusion 21 whose one side is connected / fixed to the bottom surface of the primary power plug 3 and the other side is bent upward, And has a shape to be inserted.

The protruding portion 21 of the rod bar 20 is moved forward and backward along the threaded portion 13 so that the primary control plug 3 of the other side is moved forward and backward along the threaded portion 13, Is moved.

On the other hand, the rotation of the outfeed unit 100 is controlled by a leaf spring 30 fixed to a bottom surface of the unit 1. [

The plate spring 30 has a protrusion 31 whose central portion protrudes upward in a state where both end portions of the plate spring 30 are engaged with the bottom surface of the unit 1. [

4, when the protruding portion 31 of the leaf spring 30 is engaged with the latching groove 14 formed at the lower portion of the outgoing-in / out-out apparatus 100, The take-out apparatus 100 catches the resilient force of the leaf spring 30 and engages with the engaging groove 14 formed in the rotating direction.

The rotation of the input / output apparatus 100 is controlled by the configuration of the plurality of engagement grooves 14 formed in the input / output apparatus 100 and the leaf springs 30 as described above.

Each of the grooves 15 of the outfeed unit 100 is connected to a through hole 11 which penetrates the inside of the through hole 11 and a wire 40 can be pressed by inserting the protrusion 210 of the handle 200 and pushing the wire 40 to turn off the circuit breaker 4 so that the primary power plug 3 can safely be inserted and removed.
That is, when one end of the wire 40 is inserted into the through-hole 11 of the input / output unit 100 and the other end of the wire 40 is connected to the breaker 4, The other end of the wire 40 presses the power button of the breaker to turn off the breaker so that the end of the wire is pushed out by the end of the wire 40 placed in the through hole 11, It is possible to prevent an accident that may occur during operation.

The circuit breaker 4 is connected to the input / output unit 100 through the lever 50 so that the rotation of the input / output unit 100 is mechanically controlled so that when the circuit breaker 4 is in the ON state, Rotation can be mechanically prevented, thereby preventing operation errors.

That is, as shown in Fig. 5, the circuit breaker 4 can be turned ON / OFF at the disconnection position and connection position, but the circuit breaker can not be turned ON at the test position, .

More specifically, a hole 16 is formed in one side of the outfeed unit 100 and a lever 50 is formed on the rotary shaft portion of the circuit breaker 4 so that the end portion of the lever 50 So that it is possible to prevent a safety accident by mechanically preventing a malfunction of the outfitting apparatus 100 by inserting and connecting to the hole 16 of the outfitting apparatus 100. [
That is, when the rotary shaft of the circuit breaker 4 is rotated by the handle and turned on, the lever 50 connected to the rotary shaft is inserted into the hole 16 of the I / O device 100 to mechanically prevent the natural rotation of the I / And a stable grounding state of the car power plug can be maintained.

In the figure, reference numeral 5 denotes a tertiary control plug, reference numeral 6 denotes a secondary power plug, and reference numeral 7 denotes a distributing device.

The present invention has been described with reference to the embodiments shown in the attached drawings, but it will be understood that various modifications and other embodiments are possible for those skilled in the art.

11: Through hole 12: Support plate
13: threaded portion 14:
15: each groove 16: hole
20: load bar 21: protrusion
30: leaf spring 31:
40: wire 50: lever
200: handle 210: key

Claims (4)

A primary power plug 3, a breaker 4, a tertiary control plug 5, a secondary power plug 6 and a distributing device 7 are assembled in the electric motor control panel on which the distribution bus bar 2 is formed In a three-stroke draw-in / take-in device of a low-voltage electric motor control panel unit to be assembled,
The primary power plug 3 is assembled in a slidable manner from the bottom surface of the unit 1,
A through hole 11 is formed in the longitudinal direction and a support plate 12 is formed at the center of the outer side of the primary power plug 3 so as to be rotatable with respect to the primary power plug 3, (100) in which a plurality of engagement grooves (14) and grooves (15) communicating with the through holes (11) are integrally formed on the other side;
And a rod bar (1), one side of which is assembled to the primary power plug (3) and the other side projecting part (21) is fitted to the threaded part (13) 20)
A lever 50 formed with a hole 16 at one side of the take-out and input device 100 and assembled in such a manner that one side of the circuit breaker 4 can be moved back and forth and the other side is taken in and out of the hole 16; / RTI >
When the breaker 4 is ON, the end of the lever 50 is inserted into the hole 16 of the I / O device 100 to mechanically prevent the rotation of the I / O device 100, And the first power plug (3) is safely moved forward and backward by smoothly rotating the take-out input / output device (100) out of the hole (16).
delete The method according to claim 1,
Further comprising a handle (200) having a key (210) inserted into each groove (15) of the I / O device (100) so as to smoothly rotate the I / O device (100) The unit's three-tier draw-in mouth.
The method according to claim 1,
The key 210 is inserted into the through hole 11 of the take-out and input device 100 for the rotation of the take-out input device 100 by inserting one side of the wire 40 and the other end thereof to the breaker 4, (3) of the low-voltage electric motor control panel unit is securely pulled out by pushing the wire (40) at the end portion when inserting the power plug (11) However,
KR1020150134056A 2015-09-22 2015-09-22 Three-stage withdrawal port device of the low-pressure motor control panel unit KR101627678B1 (en)

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KR1020150134056A KR101627678B1 (en) 2015-09-22 2015-09-22 Three-stage withdrawal port device of the low-pressure motor control panel unit

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Application Number Priority Date Filing Date Title
KR1020150134056A KR101627678B1 (en) 2015-09-22 2015-09-22 Three-stage withdrawal port device of the low-pressure motor control panel unit

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101708020B1 (en) 2016-08-05 2017-02-17 주식회사 피닉스 Motor Control Center Equipped with Easy Operating Interlock Device
KR102602462B1 (en) 2023-06-21 2023-11-14 에스디지테크 주식회사 The drawing in and out apparatus of motor control center unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200362773Y1 (en) * 2004-06-14 2004-09-22 현대중공업 주식회사 3-position device for motor control center unit
KR20110087849A (en) * 2010-01-27 2011-08-03 엘에스산전 주식회사 Control handle of the motor control center
KR20120005627A (en) * 2010-07-09 2012-01-17 현대중공업 주식회사 Three position handle assembly for motor control center
KR101443314B1 (en) * 2013-09-06 2014-09-26 윤여관 Receiving Unit Assembly and Motor Control Center with the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200362773Y1 (en) * 2004-06-14 2004-09-22 현대중공업 주식회사 3-position device for motor control center unit
KR20110087849A (en) * 2010-01-27 2011-08-03 엘에스산전 주식회사 Control handle of the motor control center
KR20120005627A (en) * 2010-07-09 2012-01-17 현대중공업 주식회사 Three position handle assembly for motor control center
KR101443314B1 (en) * 2013-09-06 2014-09-26 윤여관 Receiving Unit Assembly and Motor Control Center with the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101708020B1 (en) 2016-08-05 2017-02-17 주식회사 피닉스 Motor Control Center Equipped with Easy Operating Interlock Device
KR102602462B1 (en) 2023-06-21 2023-11-14 에스디지테크 주식회사 The drawing in and out apparatus of motor control center unit

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