KR20130026748A - 3-position device for motor control center unit - Google Patents

Abstract

PURPOSE: A three stage input and output control device of a low pressure motor control panel unit is provided to secure safety for driving a low pressure motor control panel using a position pad lock capable of preventing the inputting and outputting of the low pressure motor control panel unit at a connection position and a test position. CONSTITUTION: A TP drawing button(120) and a DP drawing button(130) are closely arranged in vertical. A button handle(140) is installed adjacently to the left side of the DP drawing button and the TP drawing button. A position locking device(150) operates automatically at a test position or a disconnection position and fixes the position of a low pressure motor control panel unit(110). A position padlock(160) restricts the operation of the DP drawing button and TP drawing button at the connection position and the test position. A position indicator(170) is indicated in different colors according to the connection position of the low pressure motor control panel unit, the test position, and a disconnection position. A breaker switch(180) prevents the operation of the position locking device at the position of on.

Description

3-stage draw-out control device of low voltage motor control panel unit {3-POSITION DEVICE FOR MOTOR CONTROL CENTER UNIT}

The present application relates to a three-stage draw-out control device of the low-voltage motor control panel unit, and more specifically, the low-voltage motor control panel is configured so that the low-pressure motor control panel unit is forcibly fixed at the test position and the disconnection position and can be drawn out safely step by step. It relates to a three-stage draw-out control device of the unit.

A general low pressure motor control panel is a centralized control system, which is used for general industrial equipment such as power plants, petrochemical plants, cement plants, water treatment plants, and steel plants, and special industrial equipment or marine plants or ships.

The low voltage motor control panel includes a low voltage motor control panel unit that includes a primary power plug, a secondary power plug, a tertiary control jack, a panel and a breaker switch in a fixed distribution section including a distribution busbar, a distribution device and a tertiary control plug. Can be connected in stages. The low-voltage motor control panel unit is drawn in and out by the user, and constitutes a connection position, a test position, and a disconnection position according to the withdrawal position. Here, the conventional low pressure motor control panel unit may be pulled out to a disconnected position without being stopped at the test position when being drawn out with a strong force, or may be separated from the low pressure motor control panel, thereby causing a difficulty in positioning and a safety hazard.

The related technology is disclosed in Korean Utility Model Model 20-0362773.

The present application provides a three-stage draw-out device technology that can prevent the low-voltage motor control panel unit from moving to the connection position or disconnected from the low-voltage motor control panel without passing through the test position according to the user's force.

The present application provides a device technology for fixing the low-pressure motor control panel unit in the test position and the disconnection position to ensure safety when the low-voltage motor control panel unit is drawn out with excessive force.

The present application provides a device technology that can prevent the draw-out of the low-voltage motor control panel unit at the connection position and the test position to ensure the safety of operation of the low-voltage motor control panel.

Among the embodiments, the three stage draw-out control of the low-voltage motor control panel unit includes a primary power plug, a secondary power plug, and a tertiary control jack in a fixed distribution section including a distribution busbar, a distribution device and a tertiary control plug. In the three-stage draw-out control device of the low-voltage motor control panel unit configured to connect the low-voltage motor control panel unit including a panel and a breaker switch in stages to form a connection position, a test position and a disconnection position, the low-voltage motor control panel unit is a TP ( Test Position) and a DP (Disconnected Position) drawing button, and when the TP drawing button is pressed, drawing is permitted from the connection position to the test position, and when the DP drawing button is pressed, the test position is set to the disconnection position. Withdrawal is allowed.

In one embodiment, the three-stage draw-out control device of the low-voltage motor control panel unit further includes a position lock device that is interlocked with the TP draw button and the DP draw button, the position lock device is the TP draw button or the DP When the draw button is pressed, the lock is released, and automatically operated at the test position or the disconnection position to fix the position of the low pressure motor control panel unit. In one embodiment, the panel may further include a position indicator for providing a display in a different color depending on the connection position, the test position and the disconnection position at the connection position, the test position and the disconnection position. In one embodiment, the panel may further include a position pad lock for locking the TP draw button and the DP draw button at the connection position and the test position. In one embodiment, the breaker switch can prevent operation of the position lock in the ON position.

The disclosed technology of the present application provides the effect of using the two pull-out buttons to prevent the low pressure motor control panel unit from moving to the connecting position or disconnecting from the low pressure motor control panel according to the user's force without passing through the test position.

The disclosed technique of the present application can secure safety when the low pressure motor control panel unit is drawn out with excessive force by using a position lock device for fixing the low pressure motor control panel unit at the test position and the disconnection position.

The disclosed technology of the present application can secure the safety of the operation of the low-voltage motor control panel by using a position pad lock that can prevent the entry and exit of the low-voltage motor control panel unit at the connection position and the test position.

1 is a view showing a panel of a low-voltage motor control panel unit according to an embodiment of the disclosed technology.
2 and 3 are a side view and a plan view for explaining the connection position state of the low-voltage motor control panel unit according to an embodiment of the disclosed technology.
4 and 5 are a side view and a plan view for explaining the test position state of the low-voltage motor control panel unit in FIGS. 2 and 3.
6 and 7 are side views and plan views for explaining the disconnected position state of the low-voltage motor control panel unit in FIGS. 2 and 3.

The description of the disclosed technique is merely an example for structural or functional explanation and the scope of the disclosed technology should not be construed as being limited by the embodiments described in the text. That is, the embodiments may be variously modified and may have various forms, and thus the scope of the disclosed technology should be understood to include equivalents capable of realizing the technical idea. In addition, the objects or effects presented in the disclosed technology does not mean that a specific embodiment should include all or only such effects, and thus the scope of the disclosed technology should not be understood as being limited thereto.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions describing the relationship between the components, such as "between" and "immediately between" or "neighboring to" and "directly neighboring to", should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present application.

1 is a view showing a panel of a low-voltage motor control panel unit according to an embodiment of the disclosed technology.

In FIG. 1, the front of the panel of the low-voltage motor control panel unit 110 has a Test Position (TP) takeout button 120, a Disconnected Position (DP) takeout button 130, a button handle 140, and a position pad lock 160. And a position indicator 170 and a breaker switch 180 are provided on the rear side of the panel, and interlocked with the position lock device 150 and the breaker switch 180 interlocked with the TP withdrawal button 120 and the DP withdrawal button 130. Rocker 182 is provided.

In one embodiment, the TP draw button 120 and the DP draw button 130 may be disposed up and down adjacent to each other, the button knob 140 is located on the left side of the TP draw button 120 and DP draw button 130 Can be installed adjacently. Accordingly, the user can press the TP draw button 120 or the DP draw button 130 using the thumb while holding the button knob 140, and the low voltage motor control panel unit 110 from the low pressure motor control panel. It can be pulled forward.

In this case, when the TP withdrawal button 120 is pressed, withdrawal is allowed from the connection position to the test position, and when the DP withdrawal button 130 is pressed, withdrawal is allowed from the test position to the disconnection position.

This operation may be implemented through the position lock device 150. In one embodiment, the position lock device 150 is released by pressing the TP draw button 120 or the DP draw button 130 to release the low voltage motor control panel. Withdrawal of the unit 110 may be allowed and automatically operated at the test position or the disconnection position to fix the position of the low pressure motor control panel unit 110.

The position pad lock 160 is installed so that the TP draw button 120 and the DP draw button 130 can be locked from operation at the connection position and the test position, and the user locks the position pad lock 160, thereby lowering the electric motor. Withdrawal of the control panel unit 110 can be controlled. For this reason, it is possible to prevent an accident due to a malfunction in the connected state and the test state of the low-voltage motor control panel.

The position indicator 170 provides the display in different colors according to the connection position, the test position, and the disconnection position of the low voltage motor control panel unit 110. In one embodiment, the position indicator 170 may display red at the connection position, yellow at the test position, and green at the disconnection position. The user may easily identify the position of the low voltage motor control panel unit 110 through the position indicator 170.

The breaker switch 180 may be turned on and off and prevents the position lock device 150 from operating in the on position. In one embodiment, the breaker switch 180 interlocks with the rocker 182 to operate the rocker 182 in the ON position, and the rocker 182 can control the operation of the position lock 150 electrically or mechanically. have. For this reason, the low-voltage motor control panel unit 110 is not drawn in or out in the state where the breaker is turned on.

2 and 3 are a side view and a plan view for explaining the connection position state of the low-voltage motor control panel unit according to an embodiment of the disclosed technology.

2 and 3, the low-voltage motor control panel unit 110 is in a state of being drawn into the distribution unit 200, the primary power plug 240 is electrically connected to the distribution busbar 210, and the secondary power plug. 250 is electrically connected to the dispensing apparatus 220, and the tertiary control jack 260 is electrically connected to the tertiary control plug 230. Here, the position lock device 150 is in a locked state, and the position indicator 170 displays red to indicate a connection position.

4 and 5 are a side view and a plan view for explaining the test position state of the low-voltage motor control panel unit in FIGS. 2 and 3.

In FIGS. 4 and 5, when the user presses the TP take-out button 120, the position lock device 150 is unlocked, and the user may grasp the button handle 140 and draw out the low voltage motor control panel unit 110. have. The low pressure motor control panel unit 110 drawn out moves to the test position. When the low voltage motor control panel unit 110 moves to the test position, the primary power plug 240 is disconnected from the distribution busbar 210, and the secondary power plug 250 is disconnected from the distribution device 220. 150 automatically operates to fix the position of the low-voltage motor control panel unit 110. Here, the position indicator 170 displays a test position by displaying yellow. In the test position, the tertiary control jack 260 and the tertiary control plug 230 are maintained in connection.

6 and 7 are side views and plan views for explaining the disconnected position state of the low-voltage motor control panel unit in FIGS. 2 and 3.

6 and 7, when the user presses the DP take-out button 130, the position lock device 150 is unlocked, and the user grips the button knob 140 and draws out the low pressure motor control panel unit 110. have. The low pressure motor control panel unit 110 drawn out moves to a disconnected position. When the low voltage motor control panel unit 110 withdrawn is moved to the disconnected position and the tertiary control jack 260 is disconnected from the tertiary control plug 230, the position lock device 150 is automatically operated to operate the low pressure motor control panel unit 110. ) Position. Here, the position indicator 170 displays green to indicate the disconnection position.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit and scope of the present invention as set forth in the following claims It can be understood that

110: low voltage motor control panel unit 120: TP draw out button
130: DP draw button 140: button knob
150: position lock 160: position pad lock
170: position indicator 180: breaker switch
182: Locker 200: Distribution
210: distribution busbar 220: distribution device
230: 3rd control plug 240: 1st power plug
250: 2nd power plug 260: 3rd control jack

Claims (5)

Low-voltage motor control panel units including primary power plugs, secondary power plugs, tertiary control jacks, panels and breaker switches can be connected step by step to a fixed distribution unit containing distribution busbars, distribution devices and tertiary control plugs. In the three-stage draw-out control apparatus of the low voltage motor control panel unit which comprises a connection position, a test position, and a disconnection position,
The low voltage motor control panel unit includes a TP (Test Position) drawing button and a DP (Disconnected Position) drawing button, and when the TP drawing button is pressed, drawing is allowed from the connection position to the test position, and when the DP drawing button is pressed, 3 stage draw-out control device of the low-voltage motor control panel unit, characterized in that withdrawal is allowed from the test position to the disconnection position. According to claim 1, wherein the three-stage draw-out control device of the low-voltage motor control panel unit further includes a position locking device that is interlocked with the TP draw button and the DP draw button,
The position locking device is unlocked when the TP draw button or the DP draw button is pressed, and is automatically operated at the test position or the disconnection position to fix the position of the low voltage motor control panel unit. 3-stage draw-out control of the unit. 3. The three-stage draw-out control of the low voltage motor control panel unit according to claim 1, wherein the panel further comprises a position indicator which provides a display in different colors according to the connection position, the test position, and the disconnection position. Device. The low voltage motor control panel unit of claim 1, further comprising: a position pad lock for locking the TP drawing button and the DP drawing button at the connection position, the test position, and the disconnection position. Mouth control. 3. The apparatus of claim 2, wherein the breaker switch prevents operation of the position lock device in an ON position. 4.

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