WO2014200293A1

WO2014200293A1 - Automatic transfer switch

Info

Publication number: WO2014200293A1
Application number: PCT/KR2014/005180
Authority: WO
Inventors: 성일휴
Original assignee: 이지콘주식회사
Priority date: 2013-06-14
Filing date: 2014-06-12
Publication date: 2014-12-18
Also published as: KR101305389B1

Abstract

The present invention relates to an automatic transfer switch comprising: a base which has multiple power terminal grooves partitioned to face a commercial power part and an emergency power part and has a motor mounting part formed in the middle and also has partitioned multiple load terminal grooves formed at the back; first power terminals formed on the outer sides of first power terminal grooves which are partitioned into two sections; first movable elements formed on the inner sides of the first power terminal grooves, which are partitioned into two sections, and connected by rotation to the first power terminals; a first rotary shaft which is formed in the first power terminal grooves and integrally coupled to the first power terminals and simultaneously rotates the multiple first power terminals; a first driving part which is connected to and rotates the first rotary shaft; second power terminals formed on the outer sides of second power terminal grooves which are partitioned into two sections; second movable elements formed on the inner sides of the second power terminal grooves, which are partitioned into two sections, and connected by rotation to the second power terminals; a second rotary shaft which is formed in the second power terminal grooves and integrally coupled to the second power terminals and simultaneously rotates the multiple second power terminals; a second driving part which is connected to and rotates the second rotary shaft; load terminals formed in the load terminal grooves; a motor assembly which is installed in the motor mounting part of the base and generates a driving force; a first handle, one side of which is connected to the motor shaft of the motor assembly, and the other side of which is connected to the first driving part, and which rotates the first driving part in forward and reverse directions according to the forward and reverse rotation of the motor shaft; a second handle, one side of which is connected to the motor shaft of the motor assembly, and the other side of which is connected to the second driving part, and which rotates the second driving part in forward and reverse directions according to the forward and reverse rotation of the motor shaft; and a cover which is coupled to the top of the base so as to protect the constituents provided in the base, allows the upper surfaces of the first and second handles to be supported and slide, and has an opening formed in the middle, so that parts of the first and second handles are exposed to the outside through the opening.

Description

Emergency power switch

The present invention relates to an emergency power switching switch that can be miniaturized and lightened by obtaining a driving force from an electric motor when switching from a commercial power source to an emergency power source, and also has high reliability.

In large buildings and public institutions, emergency power (emergency generators) are provided in case of a breakdown of the commercial power supplied from the power supply source. Commercial power and emergency power are supplied to the automatic transfer switch (ATS). Each is connected.

Emergency power switching switch is normally connected to the power supply to supply power to the load, when a power outage is automatically switched so that the emergency power side and the load is connected. In addition, when the power supply is resumed at the power supply source, the emergency power switching switch is operated again according to the control signal to cut off the emergency power side and to be connected to the commercial power side.

Conventionally, a charging mechanism lock release solenoid, a connection mechanism lock release solenoid, a connection direction selection solenoid, and a charging mechanism lock head sieve solenoid are provided, and the switch is switched by the operation of the solenoid.

As such, when switching the switch using the solenoid, not only the noise caused by the solenoid operation is generated, but also the manufacturing and use of the solenoid is inconvenient because the volume and weight are heavy. In addition, since the configuration for switching the switch is complicated, it is difficult to manufacture and frequently occurs in use, it is difficult to maintain the homeostasis and reliability of the device, which is one of the most important elements of the emergency power switch.

The present invention is to solve the problems as described above, by using an electric motor as a driving force generating device to increase the operation reliability, to simplify the structure while reducing the size and weight of the device, instantaneous but time difference when switching between commercial power and emergency power By preventing the overlapping of the power supply by intermittent control, it prevents the failure of the device and distributes the critical point that requires the greatest force at the moment of switching, miniaturizing the electric motor that is inevitably larger as the capacity increases, and the device accordingly becomes smaller. Make sure

In order to achieve the above object, the present invention provides a plurality of power terminal grooves which are partitioned to face the commercial power supply portion and the emergency power supply portion, the motor seating portion is formed in the center, and the load terminal grooves partitioned to the rear. The base is formed, the first power terminal groove is divided into two parts, the first power terminal is formed on the outside, the first power terminal groove is divided into two parts are formed inside and rotated to control the first power terminal A first movable shaft formed in the first power terminal groove and coupled to the first power terminal in such a manner as to be coupled to the first power terminal to simultaneously rotate the several first power terminals; The first driving unit for rotating the rotating shaft, the second power terminal groove is divided into two parts, the second power terminal is formed on the outside, the second power terminal groove is divided into two parts are formed on the inside A second actuator coupled to the second power terminal while being transferred, a second rotary shaft formed in the second power terminal groove and integrally coupled with the second power terminal to simultaneously rotate the several second power terminals; A second driving part connected to a second rotating shaft to rotate the second rotating shaft, a load terminal formed in the load terminal groove, a motor assembly installed in the motor seating portion of the base to generate a driving force, and one side of the motor shaft of the motor assembly. A first handle connected to the first driving unit and the other side connected to the first driving unit for forward and reverse rotation of the first driving unit according to the forward and reverse rotation of the motor shaft, and one side is connected to the motor shaft of the motor assembly and the other side is connected to the second driving unit The second handle for forward and reverse rotation of the second driving unit according to the forward and reverse rotation of the shaft, coupled to the base to protect the component provided in the base, the upper surface of the first and second handle And as not to be sliding, the center provides the emergency power transfer switch made in a cover such that the opening is formed to expose the opening in the outer part of the first and second handles.

In addition, the first and second cams having a phase difference in the circumferential direction are formed on the motor shaft of the motor assembly, and are connected to the first and second handles, and the first and second handles are formed to handle manually. It features.

According to the present invention, by using the electric motor as a driving force generating device can maintain the operation reliability compared to the solenoid, the device can be reduced in size and lighter, and the operation is simple because the change of the rotation direction of the electric motor is changed, different It is possible to change the time difference by the cam having the phase difference, and the cause of the failure caused by closing the power supply at the same time can be prevented in advance.

In addition, when the cam has a phase difference, the greatest driving force is required at the moment of switching, and the critical point of the switching moment can be dispersed, so that the motor can be miniaturized, and the handle 300 for transmitting driving force is divided into two parts. This allows switching with a relatively small driving force.

In addition, the base is separated through the partition wall, and a part of the partition wall has a through hole formed up and down so as to quickly release the heat generated from the electronic component, and the back of the base can be inserted into the wiring in a slimming manner Since a plurality of wiring grooves are formed in a row, the wiring work can be simplified, and the wiring processing can be neat such that the wiring is not entangled, thereby enhancing the aesthetics of the device.

1 is a combined perspective view of the emergency power switch opening and closing according to the present invention.

2 is an exploded perspective view of the emergency power switching switch according to the present invention.

3 is a plan view of a base according to the present invention.

4 is a perspective view of an operation unit according to the present invention.

Figure 5 is a perspective view of the main part of the emergency power switching switch according to the invention.

Figure 6a, Figure 6b is an operating state diagram of the emergency power switching switch according to the invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 6, four first and second power terminal grooves Tg1 partitioned by the partition wall 112 are formed in opposite left and right directions, and a motor seat mh is formed at the center thereof. Is formed, the base 110 is provided with a plurality of load terminal grooves (Rg) partitioned forward.

The length, width, and height of the base 110 are 220 mm x 140 mm x 45 mm. The base is designed differently depending on the type of load, such as single-phase two-wire, three-phase four-wire type, in the present invention was designed in consideration of the three-phase four-wire type. The size of the base can be designed differently according to the size, type and purpose of the load.

Four first power terminal grooves (Tg1) are formed on the left side of the base 110, each is partitioned, the first power terminal 120 is formed on the outside, the first actuator 130 is formed on the inside, Four second power terminal grooves (Tg2) are formed on the right side of the base 110, each is divided into a second power terminal 160 is formed on the outside, the second actuator 170 is formed on the inside.

Four load terminal grooves Rg partitioned through the partition wall are formed on the rear surface of the base 110, and a load terminal 200 is formed in the load terminal groove. One side of the load terminal is provided with a connector 205 connected to a motor controller (not shown) to control the electric motor by sensing the interruption of commercial power and emergency power. The first power terminal 120 is connected to the commercial power, the second power terminal 160 is connected to the emergency power.

The first operator 130 is to be connected to and disconnected from the commercial power while being rotated, the commercial power is energized to the load when connected to the commercial power, the commercial power connected to the load is disconnected when disconnected from the commercial power. .

The second operator 170 is to be connected to and disconnected from the emergency power while being rotated, the emergency power is energized to the load when connected to the emergency power, the emergency power connected to the load is disconnected when the emergency power is disconnected. .

A first rotary shaft 140 is formed in the first power terminal groove Tg1 to be integrally coupled with the four first actuators 130 and to operate the four first actuators 130 at a time. .

The second power source terminal groove Tg2 is formed with a second rotary shaft which is integrally coupled with the four second actuators 170 and rotates to operate the four second actuators 170 at a time.

One side of the first rotary shaft is formed with a first driver for rotating the first rotary shaft, one side of the second rotary shaft is formed with a second driving portion for rotating the second rotary shaft.

In the center of the base 110, a U-shaped motor seat mh is formed. The motor assembly 210 that generates the driving force is seated on the motor seating portion. The motor assembly 210 includes a motor box 220 assembled to a motor seat and an electric motor 230 embedded in the motor box. The motor shaft 240 of the electric motor 230 protrudes out of the motor box 220, and the first cam 250 and the second cam 260 are continuously formed on one axis line in the motor shaft 240. do. The first cam 250 and the second cam 260 are integrally formed on the motor shaft, but have a phase difference of 15 to 30 ° in the circumferential direction. The phase difference can be designed larger or smaller as needed.

One side of the first driving unit 150 is the first driving unit 150 by the first cam 250 when one side is opposed to the first cam 250 of the motor shaft 240 and the motor shaft is rotated. When the first handle 310 is formed to push or pull the left and right, and the second driving part 190, one side is opposed to the second cam 260 of the motor shaft when one side is the second driving part, the motor shaft is rotated A second handle 320 may be formed to push or pull the second driving part 190 from side to side by the second cam. As such, the handle 300 includes a first handle 310 and a second handle 320.

Handles for operating the first and

second driving parts

150 and 190 by pushing or pulling the first handle 310 and the second handle manually or manually on the upper ends of the first handle 310 and the second handle 320 ( 330,340 are formed

A cover 410 covering the base is coupled to the base 110, and a plurality of bolt holes are formed in the cover so as to correspond to the plurality of bolt holes formed in the partition wall of the base, and the bolts are coupled to the cover, and the center of the cover is formed at the center of the cover. The

handles

330 and 340 of the first and second handles are exposed to the outside and an opening 420 is formed to move the left and right a predetermined distance. In addition, the cover 410 also functions to support the upper surface when the first and

second handles

310 and 320 are operated so as to be able to move smoothly. The bottom surface of the base 110 is further coupled to the blocking plate 500 to protect the wiring.

Referring to the operation of the emergency power switching switch according to the present invention configured as described above are as follows.

A three-phase four-wire commercial power is connected to the first power terminal 120, and a three-phase four-wire emergency power (generator) is connected to the second power terminal 160. In the initial state, since the commercial power supply and the first power supply terminal 120 are connected, the supply of power is made from the commercial power supply to the load. At this time, the first operator 130 is lowered and connected to the first power terminal 120, the first driver 150 is rotated to the right, and the first handle 310 is moved to the right. The second mover 170 is lifted up and cut off from the second power supply terminal 160. The second driver 190 is rotated to the right and the second handle 320 is moved to the right as shown in FIG. 7A.

When the commercial power is turned off during use, it is sensed by the motor controller (MCU) to rotate the electric motor 230 in reverse. When the electric motor 230 is rotated in reverse, the first cam 250 and the second cam 260 formed on the motor shaft 240 reversely rotated, and as shown in FIG. 7B, the first handle 310 and the second handle 320 are rotated. To the left.

Since the first cam 250 and the second cam 260 have a phase difference, when the first cam 250 is first moved to the right, the first handle 310 and the first driving unit connected to the first cam 250 are provided. 150, the first operator 130 is moved to the right while being rotated so that the first operator 130 is short-circuited at the first power terminal 120 connected to the commercial power source. At the same time, the second handle 320, the second driver 190, and the second actuator 170 connected to the second cam 260 are moved to the right while the second actuator 170 is connected to the emergency power source. The second power supply terminal 160 is cut off. That is, a process in which commercial power is cut off and emergency power is connected is made in a very short time, while making a time difference as much as the phase difference between the first cam 250 and the second cam 260.

On the contrary, when the commercial power was turned off, it is sensed by a separately provided motor controller to reversely rotate the electric motor 230. When the electric motor 230 is rotated in reverse, the first cam 250 and the second cam 260 formed on the motor shaft 240 rotates in reverse and the first handle 310 and the second handle 320 as shown in FIG. 7B. Move to the left.

As such, the electric motor rotates forward and backward according to the on / off of the commercial power, thereby repeatedly supplying power to the load by repeatedly exchanging the commercial power and the emergency power.

When the second cam 260 is first moved to the left side, the second handle 320, the second driving unit 190, and the second actuator 170 connected to the second cam 260 are rotated to the left to move the first cam. The two actuators 170 are disconnected from the second power terminal 160 connected to the emergency power. At the same time, the first handle 310 connected to the first cam 250, the first driving unit 150, and the first operator 130 are rotated and moved to the left, so that the first operator 130 is connected to the commercial power source. It is connected to the first power supply terminal 120.

The electric motor 230 may be in an inoperable state. At this time, the first and

second driving units

150 and 190 may be operated by pushing or pulling the handle formed on the upper ends of the first handle 310 and the second handle 320. It can replace electric motor function.

Claims

The base 110 is formed with a plurality of first and second power terminal grooves, which are divided into a commercial power supply portion and an emergency power supply portion, and a motor seating portion is formed in the center, and a plurality of load terminal grooves partitioned in the rear. ;

The first power terminal groove is divided into two parts, the first power terminal 120 is formed on the outside;

The first power terminal groove is divided into two parts and formed inside and rotated, the first actuator 130 is intermittent with the first power terminal;

A first rotary shaft 140 formed in the first power terminal groove and integrally coupled with the first power terminal to simultaneously rotate the plurality of first power terminals;

A first driving part 150 connected to the first rotation side to rotate the first rotation shaft;

The second power terminal groove is divided into two parts and the second power terminal 160 is formed on the outside;

The second power terminal groove is divided into two parts formed in the inside and rotated while the second mover (170) intermittent with the second power terminal;

A second rotary shaft 180 formed in the second power terminal groove and integrally coupled with the second power terminal to simultaneously rotate the plurality of second power terminals;

A second driving unit 190 connected to the second rotating shaft to rotate the second rotating shaft;

A load terminal 200 formed in the load terminal groove;

A motor assembly 210 installed at the base of the base to generate driving force;

A first handle 310 having one side connected to the motor shaft of the motor assembly and the other side connected to the first driving unit for forward and reverse rotation of the first driving unit according to the forward and reverse rotation of the motor shaft;

A second handle 320 having one side connected to the motor shaft of the motor assembly and the other side connected to the second driving unit for forward and reverse rotation of the second driving unit according to the forward and reverse rotation of the motor shaft;

It is coupled on the base to protect the components provided in the base, to allow the upper surface of the first and second handles to slide while being supported, an opening is formed in the center portion of the first and second handles to the opening A cover 410 to be exposed;

Emergency power switchgear characterized in that it comprises a.
The method of claim 1,

First and second cams (240, 250) having a phase difference in the circumferential direction is formed on the motor shaft (240) of the motor assembly, emergency power switchgear characterized in that connected to the first and second handles.
The method of claim 1,

Emergency power switchgear switch characterized in that the handle (330, 340) is formed on the first and second handles to be manually operated.
The method of claim 1,

Emergency power switching switch characterized in that the back of the base is formed with a continuous wiring grooves in a way to lose weight so that all the wires drawn from the power terminal and the motor assembly is not exposed to the outside of the base.