KR100840384B1 - Automatic Transfer Switch - Google Patents

Abstract

The present invention relates to an automatic switching switch, and more particularly, to an automatic switching switch for automatically switching so that emergency power can be used in commercial power when a power failure occurs, the commercial power terminal, the emergency power terminal, and the load A fixed terminal unit including a terminal; A contact bundle part including a first contact bundle contacting or opening with the commercial power supply terminal, and a second contact bundle contacting or opening with the emergency power terminal; And a) a first terminal link portion for rotating the first contact bundle by rotation; A first control link unit coupled to the first terminal link unit; A first link unit connected to the first control link unit and including a first rotation control unit for rotating the first contact bundle through the first terminal link unit; b) a second terminal link portion for rotating the second contact bundle by rotation; A second control link unit connected to the second terminal link unit; A second link unit connected to the second control link unit and including a second rotation control unit for rotating the second contact bundle through the second terminal link unit; And c) opening after connection between the first contact bundle-the commercial power terminal, the second contact bundle-the emergency power terminal by limiting the behavior of the first link portion and the second link portion, the second contact bundle- It includes a switching unit including an operation interlock between the emergency power terminal, the first contact bundle-open after the connection between the commercial power terminal, and the first contact bundle open / the second contact bundle open state. An automatic switching switch is disclosed.

Description

Automatic Transfer Switch {Automatic Transfer Switch}

1 is a perspective view showing an automatic switching switch according to the present invention.

2 is a perspective view showing a part of the configuration of the automatic switching switch of FIG.

3A and 3B are exploded perspective views showing a part of the configuration of the automatic switching switch of FIG. 1, respectively.

Figure 4 is a side view showing the hooking member of the automatic switching switch of FIG.

5A to 5E are conceptual views illustrating an operation process of the automatic switching switch of FIG. 1.

6A to 11C are operation state diagrams illustrating an operation state of the automatic switching switch of FIG. 1.

***** Explanation of symbols for main parts of drawing *****

110: first contact bundle 120: second contact bundle

320: hooking member

810: first fixed terminal 820: second fixed terminal

The present invention relates to an automatic switching switch, and more particularly, to an automatic switching switch for automatically switching to use the emergency power from a commercial power supply when a power failure occurs.

The automatic switching switch refers to a device for switching from a commercial power source supplied from KEPCO to an emergency power source for preliminarily supplying power in the event of a power failure in an emergency such as a natural disaster.

In the event of a power failure such as a hospital, factory, research institute, or broadcasting station, it has a generator to generate emergency power in order to minimize the damage. The automatic switching switch as described above has an emergency from commercial power when the power failure occurs. It is used to switch to the power supply.

On the other hand, the automatic switching switch is a fixed terminal consisting of a commercial power side terminal, an emergency power side terminal and a load terminal, and a contact electrically connected to the commercial power side terminal or an emergency power side terminal selectively in an electrically connected state with the load terminal. Consists of a bundle

By the way, in the conventional automatic switching switch, when connecting with the commercial power supply terminal and the open and emergency power supply terminal, a physical time difference for the opening and the connection occurs, even if a short time may occur an instantaneous power failure state.

In addition, when the phase of the voltage that is energized to the load side at the time of power failure and the phase of the voltage of the emergency power side when connected to the emergency power supply side may cause an unexpected high voltage may cause damage to the electrical equipment.

Meanwhile, the conventional automatic switching switch maintains a state connected to at least one of the commercial power supply terminal and the emergency power supply terminal, and both the commercial power supply side and the emergency power supply side can be electrically opened for maintenance of the automatic switching switch. There is a need.

An object of the present invention to recognize the above problems and needs, to provide an automatic switching switch having a structure that can minimize the time required for opening and connecting between the contact bundle and the fixed terminal.

Another object of the present invention is to provide an automatic switching switch having a structure that can be electrically opened with both of the fixed terminals connected to the commercial power source and the emergency power, respectively.

The present invention was created in order to achieve the object of the present invention as described above, the present invention is fixed to include a first fixed terminal connected to the commercial power source, a second fixed terminal connected to the emergency power source, a load terminal connected to the load Terminal section; A first contact bundle electrically connected to the load terminal and contacted or opened with the first fixed terminal by rotation; a second contact point electrically connected to the load terminal and contacted or opened with the second fixed terminal by rotation; Contact bundle unit including a contact bundle; And a) a first pivotal arm, a first pivotal arm rotatably coupled to the first fixed shaft, one end of which is rotatably coupled to an end of the first pivotal arm, and the other end rotates with the first bundle of contacts. A first terminal link portion capable of being coupled and including a first terminal link for rotating the first contact bundle by rotation of the first pivotal arm; A first reference link whose one end is rotatably coupled to a first link fixing shaft parallel to the first fixed shaft, a first coupling link whose one end is rotatably coupled to the other end of the first reference link, and one end thereof A first connecting link rotatably coupled to the other end of the first coupling link, the other end being rotatably coupled to a second link fixing shaft parallel to the first fixed shaft, and one end of the first pivoting arm; A first control link unit rotatably coupled with a first sub control link, the other end being rotatably coupled with the first connection link between both ends of the first connection link; A first link unit connected to the first control link unit and including a first rotation control unit for rotating the first contact bundle through the first terminal link unit; b) a second fixed shaft, a second pivotal arm rotatably coupled to the second fixed shaft, one end of which is rotatably coupled to an end of the second pivotal arm, and the other end is rotatable with the second bundle of contacts. A second terminal link portion coupled to the second terminal link portion to rotate the second contact bundle by rotation of the second pivotal arm; A second reference link, one end of which is rotatably coupled to the first link fixing shaft, a second coupling link, of which one end is rotatably coupled to the other end of the second reference link, and the second link fixing shaft. A second connection link, one end of which is rotatably coupled to the other end of the second coupling link, one end of which is rotatably coupled to the end of the second pivotal arm, and the other end of which is coupled to the other end of the second linking link. A second control link unit including a second sub control link rotatably coupled; A second link unit connected to the second control link unit and including a second rotation control unit for rotating the second contact bundle through the second terminal link unit; And c) opening after connection between the first contact bundle-the first fixed terminal and the second contact bundle-the second fixed terminal by limiting the behavior of the first and second link portions. Switch between the bundle-the second fixed terminal, the first contact bundle-opening after the connection between the first fixed terminal, and the operation interlocking part for controlling the first contact bundle open / the second contact bundle open state Disclosed is an automatic switching switch comprising a portion.

The other end of the first reference link and the first coupling link are rotatably coupled by a first coupling shaft. The other end of the second reference link and the second coupling link are coupled by a second coupling shaft. The first rotational control unit includes a pressing unit for applying the elastic force to the end of the guide slot with the first reference link around the first link fixing shaft, and a movement control unit for the first coupling shaft to move the guide slot by contracting the pressing unit. The second rotation control unit includes a pressing unit for applying an elastic force to the end of the guide slot around the third link fixed axis of the second link link, and the second coupling shaft to the guide slot by shrinking the pressing unit It may be configured to include a movement control unit for moving.

The operating interlocking unit includes a guide slot into which the first coupling shaft and the second coupling shaft are fitted to guide the first coupling shaft and the second coupling shaft to rotate within a predetermined angle range about the first link fixing shaft. The guide frame is formed, and the hooking groove is formed to maintain the first coupling shaft or the second coupling shaft is engaged so that the first coupling shaft or the second coupling shaft is fixed at a specific position of the guide slot It may be configured to include a hooking member.

As long as the movement control units of the first rotation control unit and the second rotation control unit are rotatably coupled to the first link fixing shaft or the third link fixing shaft, respectively, the first rotation control unit and the second rotation control unit are formed to engage the first coupling shaft or the second coupling shaft. The hooking link having a pair of hooking protrusions and the first linking shaft or the third linking fixed shaft rotates about the first coupling shaft or the second coupling shaft caught in the hooking protrusions to rotate the hooking link. The rotating link unit and the rotating link unit for moving the rotating link unit may be configured to include a rotating link. The hooking groove may be formed with a step.

The operation interlocking part is switched between the first contact bundle-first fixed terminal and the second contact bundle-second fixed terminal so that either one is opened and one is connected, and both are opened through the connected state. Can be configured to control.

The present invention also includes a fixed terminal unit including a commercial power supply terminal, an emergency power supply terminal, a load terminal; A contact bundle part including a first contact bundle contacting or opening with the commercial power supply terminal, and a second contact bundle contacting or opening with the emergency power terminal; And a) a first terminal link portion for rotating the first contact bundle by rotation; A first control link unit for rotating the first terminal link unit; A first link unit connected to the first control link unit and including a first rotation control unit for rotating the first contact bundle through the first terminal link unit; b) a second terminal link portion for rotating the second contact bundle by rotation; A second control link unit for rotating the second terminal link unit; A second link part connected to the second second link part and including a second rotation control part to rotate the second contact bundle through the second terminal link part; And c) opening after connection between the first contact bundle-commercial power terminal and the second contact bundle-emergency power terminal by limiting the behavior of the first link part and the second link part, the second contact bundle-emergency power supply terminal, Disclosed is an automatic switching switch comprising a switching unit including an opening after connection between a first contact bundle and a commercial power supply terminal, and an operation interlocking unit for controlling the first contact bundle opening / second contact bundle opening state.

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

1 to 11c, the automatic switching switch according to the present invention, a commercial power terminal (first fixed terminal; 810) connected to the commercial power source, an emergency power terminal (second fixed terminal) connected to the emergency power; 820 and a fixed terminal unit including a load terminal 830 connected to the load, and optionally electrically connected to the first fixed terminal 810 or the second fixed terminal 820 in an electrically connected state with the load terminal 830. It includes a contact bunch to be connected, and the switch to selectively connect with the first fixed terminal 810 or the second fixed terminal 820.

Meanwhile, the fixed terminal part, the contact bunch part and the switching part are supported and installed in the main body frame 300, respectively, and the main frame 300, the fixed terminal part, the contact bunch part and the switching part are not shown and installed in the casing. do.

The fixed terminal part includes a first fixed terminal 810, a second fixed terminal 820, and a load terminal 830 that are fixed to the main body frame 300.

The first fixed terminal 810, which is the commercial power terminal, is composed of a fixed terminal connected to the side of the Korea Electric Power supplying commercial power. The second fixed terminal 820, which is the emergency power terminal, is configured as a fixed terminal connected to an emergency power source such as a small generator capable of continuously supplying power to a load when commercial power is not supplied due to a power failure due to a natural disaster. The load terminal 830 is selectively connected to each of the commercial power terminal 810 or the emergency power terminal 820 and the switching unit to supply power to loads of various electric / electronic devices.

At this time, the fixed terminal unit may be applied to the wiring type, such as 2-wire, 3-wire, 4-wire, depending on the type of commercial power connected to each other, the respective commercial power terminal 810, emergency power terminal 820 and the load terminal 830 The number of) may be composed of 2 to 4 depending on the wiring type.

On the other hand, the contact bundle is supported by the main body frame 300, the first contact terminal 110 is in contact with or opened by the first fixed terminal 810 by rotation, and the second fixed terminal 820 by rotation It is configured to include a second contact bundle 120 in contact with or open.

In this case, the first contact bundle 110 and the second contact bundle 120 are supported by the main body frame 300 by a switching unit to be described later and interlocked with each other to fix the first fixed terminal 810 or the second. It is configured to be in contact with or open with the terminal 820.

The first contact bundle 110 and the second contact bundle 120 are rotatably installed by the hinge shafts 131 and 132 on the contact bunching unit 130 as shown in FIG. 6A. And the contact bunching unit 130 is fixed to the body frame 300.

In addition, the first contact bundle 110 and the second contact bundle 120 is configured to include a contact member 140 and the elastic member 150, respectively.

The contact member 140 is rotatably installed in the contact agglomeration unit 130 and is supported and installed by the insulating member 160 to be coupled in an insulated state with the contact agglomeration unit 130. The insulating member 160 is rotatably installed in the contact uniting unit 130 by the hinge shafts 131 and 132, respectively.

The elastic member is composed of a spring for applying an elastic force to the contact member 140, the contact member 140 may be in contact with each of the first fixed terminal 810 and the second fixed terminal 820 with a constant contact pressure. The first contact bundle 110 and the second contact bundle 120 may be configured to apply an elastic force to the contact member 140.

The contact member 140 is electrically connected to the load terminal 830, so as not to interfere with the rotation of the first contact bundle 110 and the second contact bundle 120, to the connection member 141, which is easy to bend. It may be electrically connected to the load terminal 830 by.

In addition, as shown in FIG. 1, the contact member 140 may be in pressure contact with the first fixed terminal 810 or the second fixed terminal 820 by the elastic member 150 to rotate within a predetermined angle. The pins 161a and 161b are fixed to the insulating member 160 so as to be possible.

Meanwhile, the switching unit rotates the first contact bundle 110 and the second contact bundle 120 to 1) between the first contact bundle 110 and the first fixed terminal 810 and the second contact bundle 120. After the electrical connection between the second fixed terminal 820 is opened, 2) between the second contact bundle 120, the second fixed terminal 820, between the first contact bundle 110 and the first fixed terminal 810 After connection to open, and 3) is configured to be controlled in the open state of the first contact bundle 110 and the second contact bundle 120. In particular, when any one of the first contact bundle 110 between the first fixed terminal 810, between the second contact bundle 120 and the second fixed terminal 820 is opened after the other side is opened. .

At this time, the switch is opened after the connection between the first contact bundle 110 and the first fixed terminal 810, the second contact bundle 120 and the second fixed terminal 820 is the first contact bundle 110 and the first It is to be made by the interlocking action between the two contact bunch (120).

The switching unit includes a first link unit, a second link unit, and an operation interlocking unit for interlocking the operations of the first link unit and the second link unit.

The first link unit is connected to the first terminal link unit 110, the first terminal link unit, the first control link unit is connected to the first terminal link unit, the first control link unit is connected to the first It comprises a first rotation control unit for rotating the first bundle of contacts 110 through the terminal link unit.

The first terminal link part includes a first fixed arm 511, a first pivotal arm 510 rotatably coupled to the first fixed shaft 511, and one end thereof with an end of the first pivotal arm 510. A first terminal link rotatably coupled and the other end rotatably coupled with the first contact bundle 110 to rotate the first contact bundle 110 by rotation of the first pivotal arm 510 ( 512).

The first control link unit includes a first reference link 560, a first coupling link 540, a first connection link 530, and a first sub control link 520.

One end of the first reference link 560 is rotatably coupled to a first link fixing shaft 712 parallel to the first fixing shaft 511. One end of the first coupling link 540 is rotatably coupled to the other end of the first reference link 560. One end of the first connection link 530 is rotatably coupled to the other end of the first coupling link 540, and the other end is connected to the second link fixing shaft 713 parallel to the first fixed shaft 511. Rotatably coupled. One end of the first sub control link 520 is rotatably coupled to the end of the first pivotal arm 510, and the other end of the first sub control link 520 is connected between both ends of the first connection link 530. ) And rotatably coupled.

Meanwhile, the other end of the first reference link 560 and the first coupling link 540 are rotatably coupled to the first link fixing shaft 712 by the first coupling shaft 550.

The first rotational control unit is configured such that the first rotational control unit rotates the first coupling shaft 550 about the first link fixing shaft 712. Various configurations such as an electronic method or a motor are possible.

The first rotational control unit of the embodiment of the present invention, the first reference link 560, the pressing unit 280 for applying an elastic force to the end of the guide slot (311a) around the first link fixing shaft 712, and the The pressing unit 280 is contracted so that the first coupling shaft 550 includes a movement control unit for moving along the guide slot 311a.

The pressing unit 280 includes a variable link 282 and an elastic member 281. The variable link 282 is configured such that one end is rotatably installed with the main body frame 300 and the other end is connected with the first coupling shaft 550 and its length is variable. The elastic member 281 is configured to push the first coupling shaft 550, the coil spring can be used as the elastic member 281, the variable link 282 in the state that the variable link 282 is fitted ) Is combined. The variable link 282 is hinged to the body frame 300 so as to be smoothly rotated by the movement of the first coupling shaft 550.

On the other hand, although the first rotation control unit is not shown, a lever for rotating the first coupling shaft 550 may be separately installed so that the user can manually move the first coupling shaft 550.

The movement control unit contracts the pressing unit 280 so that the first coupling shaft 550 rotates along the guide slot 311a about the first link fixing shaft 712.

The movement control unit may be rotatably coupled to the first link fixing shaft 712, and has a hooking link 240 having a pair of hooking protrusions 241a and 241b formed to engage the first coupling shaft 550. A rotation link unit rotating the hooking link 240 to rotate the first coupling shaft 550 caught on the hooking protrusions 241a and 241b by rotating about the first link fixing shaft 712; The rotating link unit is configured to include a rotating unit for rotating the hooking link 240.

The rotating link part has a first support link 270 rotatably coupled to the first link fixing shaft 712, and a second end rotatably coupled to the other end of the first support link 270. A pin guide slot 251 into which a support link 260 and a link pin 261 coupled to the other end of the second support link 260 is inserted is formed and formed on the hooking link 240 and the coupling shaft 320. Is configured to include a cam link 250 is fixedly connected by the rotation with the hooking link 240.

The first support link 270 is rotatably supported by a hinge member 271 fixed to the main frame 300.

On the other hand, the pivot 290 may be configured to rotate the first support link 270 around the hinge member 271, as shown, between both ends of the first support link 270 And a pressing device 292 coupled to the coupling rod 291 and pushing the coupling rod 291 upward so that the first support link 270 is rotated about the hinge member 271. Can be. In this case, the coupling rod 291 may be rotatably coupled to the first support link 270 with a tolerance that allows the rotation of the first support link 270. In addition, the coupling rod 291 or the pressurizing device 292 may be installed to enable a partial movement in accordance with the rotation of the first support link (270).

The pressurization device 292 may be any device for linearly moving the coupling rod 291, in particular a solenoid may be used. When the pressurization device 292 is used as a solenoid, it can be operated by applying a momentary voltage. Of course, the coupling rod 291 may be configured as a part of the solenoid.

Meanwhile, the second link part is connected to the second terminal link part 120, the second control link part connected to the second terminal link part, and the second control link part is connected to the second link part. And a second rotation control unit for rotating the second contact bundle 120 through the terminal link unit.

The second terminal link part includes a second fixed shaft 611 installed in parallel with the first fixed shaft 511, a second pivotal arm 610 rotatably coupled to the second fixed shaft 611, and one end thereof. Rotatingly coupled with the end of the second pivotal arm 610 and the other end is rotatably coupled with the second contact bundle 120 is rotated by the second pivotal arm (610) the second bundle of contacts ( And a second terminal link 612 for rotating 120.

The second control link unit has a second reference link 660 rotatably coupled to a third link fixing shaft 714, one end of which is coaxial with the first link fixing shaft 712, and one end of which is the second reference. A second coupling link 640 rotatably coupled to the other end of the link 660, and rotatably coupled to the second link fixing shaft 713, and one end of which is connected to the other end of the second coupling link 640. A second connection link 630 rotatably coupled, one end of which is rotatably coupled to the end of the second pivotal arm 610, and the other end of which is rotatably coupled to the other end of the second link link 640. And a second sub control link 620.

The other end of the second reference link 660 and the second coupling link 640 are rotatably coupled by the second coupling shaft 650, and the second coupling shaft 650 is the third link fixing shaft 714. It is installed to rotate around.

The second rotation control unit is configured to rotate the second coupling shaft 650 about the third link fixing shaft 714, which can be various configurations such as an electronic method or a motor.

The second pivotal control unit includes a pressing unit 280 for applying an elastic force to the end of the guide slot 311b by the second reference link 660 around the third link fixing shaft 714, and the pressing unit 280 The second coupling shaft 650 is contracted to include a movement control unit for moving along the guide slot 311b.

However, the first rotational control unit corresponds to the first coupling shaft 550 rotating about the first link fixing shaft 712, and the second rotational control unit rotates about the second link fixing shaft 713. It is rotatably coupled with the shaft 650.

The second rotational control unit according to the present invention has a configuration corresponding to the configuration of the first rotational control unit, a detailed description thereof will be omitted for convenience.

The actuation interlocking portion is configured such that the behavior of the first link portion connected to the first contact bundle 110 and the second link portion connected to the second contact bundle 120 interlock with each other. In other words, the actuation interlocking part is configured to restrict the behavior of the first link part and the second link part, so that the first contact bundle 110 between the first fixed terminal 810 and the second contact bundle 120 and the second fixed terminal are fixed. 2) opening after connection between 820, 2) opening after connection between the second contact bundle 120 and the second fixed terminal 820, the first contact bundle 110 and the first fixed terminal 810, and 3) The first contact bundle 110 and the second contact bundle 120 are configured to be controlled in an open state.

In particular, the operation interlocking portion between the first contact bundle 110 and the first fixed terminal 810, between the second contact bundle 120 and the second fixed terminal 820 is switched from 1) to 2), or 2) When switching from to 1), both sides are connected and operate to open one side.

The operation interlocking part includes a pair of guide frames 310 and a hooking member 320.

Each of the guide frames 310 has a first angular range around each of the first coupling shaft 550 and the second coupling shaft 650 about the first link fixing shaft 712 and the third link fixing shaft 714. Guide slots 311a and 311b to which the first coupling shaft 550 and the second coupling shaft 650 are fitted are formed to guide the rotary shaft in the guide shaft.

The hooking member 320 is installed between the guide frame 310 so that the first coupling shaft 550 or the second coupling shaft 650 can be fixed at a specific position of the guide slots 311a, 311b. The first coupling shaft 550 or the second coupling shaft 650 is configured to include a hooking member 320 is formed with a hooking groove 321 for maintaining a locked state.

The guide slots 311a and 311b have a first coupling shaft 550 and a second coupling shaft 650 within a predetermined angle with respect to the first link fixing shaft 712 and the second link fixing shaft 714. Shape the arc to rotate.

The guide frame 310 is installed in pairs with their surfaces spaced apart from each other in a direction perpendicular to the axial direction of the first link fixing shaft 712, the first fixed shaft 511 and the second fixed shaft 611 The first link fixing shaft 712 and the second link fixing shaft 714 may be fixedly installed.

The hooking member 320 is rotatably installed on the hooking shaft 324 fixed to the guide frame 310, and the first coupling shaft 550 or the second coupling shaft on both sides of the hooking groove 321. In order to slow the release of 650, curved cam surfaces 322 and 323 are formed.

On the other hand, the hooking member 320 is a restoring member for applying a restoring force to maintain the engaging pin (not shown) and the first coupling shaft 550 and the second coupling shaft 650 installed in the guide frame 310 in a locked state ( Not shown). One end of the restoration member is coupled to the hooking member 320 and the other end is fixed to the body frame 300. In addition, the hooking groove 321 may be formed with a step (321a, 321b).

As described above, the operation interlocking part is connected between the first contact bundle 110 and the first fixed terminal 810 (shorted state) and is open between the second contact bundle 120 and the second fixed terminal 820. In the open state between the first contact bundle 110 and the first fixed terminal 810 and in the process of changing to a connected state between the second contact bundle 120 and the second fixed terminal 820, the first contact bundle ( 110) -the first fixed terminal 810 and the second contact terminal 120-the second fixed terminal 820 to prevent the opening of both the first bundle of contacts 110-first fixed terminal 810 and the first After all of the two contact bundles 120 and the second fixed terminals 820 are connected, the first contact bundle 110 and the first fixed terminals 810 are configured to open. Of course, the actuation interlock is configured to operate in the reverse case as well.

On the other hand, when the power supply is required to be cut off, such as repair of the automatic switching switch or the loads connected to the automatic switching switch, the first contact bundle 110 and the first fixed terminal 810 between the second contact bundle 120 and the second Both fixed terminals 820 need to be kept open. To this end, a hook for releasing both of the first coupling shaft 550 and the second coupling shaft 650 from the hooking groove 321 by rotating the hooking member 320 at the end of the hooking member 320. The release unit 330 may be additionally installed.

As shown in FIG. 2, the locking release part 330 is coupled to a trip link 331 having one end fixed to the other end of the hooking member 320, and the other end of the trip link 331. It comprises a trip device 332 for rotating the hooking member 320 by pulling the link 331.

The trip device 332 may be used a variety of devices, such as a solenoid or a linear motor, is fixed to the body frame 300.

Referring to the operation of the automatic switching switch according to the present invention having the configuration as described above in detail.

5A to 5E are conceptual views illustrating an operation process of the automatic switching switch of FIG. 1, and FIGS. 6A to 6C illustrate a first contact bundle and a first fixed terminal connected to each other, and a second contact bundle and a second fixed terminal open to each other. 7A to 7C are side views showing a state immediately before the first coupling shaft pushes the hooking member in the state shown in FIG. 6A, and FIGS. 8A to 8C are views of the state shown in FIG. 7A. 1 is a side view showing a state before the coupling shaft pushes the hooking member completely and the second coupling shaft is moved, Figures 9a to 9c is the first contact bundle and the first fixed terminal is open, the second contact bundle and the second fixed terminal 10A to 10C are side views illustrating a state before the first coupling shaft is moved while the second coupling shaft partially pushes the hooking member in the state of FIG. 9A, and FIGS. 11A to 10C are FIGS. 11c is a state in which the first contact bundle and the first fixed terminal are opened by the movement of the first coupling shaft and the second coupling shaft by the rotation of the hooking member, and the second contact bundle and the second fixed terminal are opened, that is, both are open. Side view showing the.

The automatic switching switch according to the present invention is installed between the power supply and the load to supply power to the load. As described above, since the power source is composed of a commercial power source and an emergency power source, the automatic switching switch is installed between the power source and the load consisting of the commercial power source and the emergency power source, as shown in FIGS. 5A to 5E.

On the other hand, the automatic switching switch is commercial power-load and emergency power-load as shown in Figure 5a, 1) connection / open, as shown in Figure 5c, 2) open / connected, as shown in Figure 5e 3) Operate in open / open state.

On the other hand, when the automatic switching switch is converted from the 1) state to the 2) state, or from the 2) state to the 1) state, in order to prevent the commercial power-load and the emergency power-load from being opened, FIGS. 5B and FIG. As shown in 5d, it is activated to go through a connected / connected state. That is, the automatic switching switch is operated so that the coupling between terminals must be open after all connections are made when the state is changed to 1) state <-> 2) state. On the other hand, the automatic transfer switch that performs the above functions is called an uninterruptible transfer switch, and in English, it is called CTTS (Closed Transition Transfer Switch), and the opening function after connection / connection before the connection / open state is called the overlapping function.

6A and 6B, the automatic switching switch is electrically connected to the first contact terminal 110 and the first fixed terminal 810 connected to the commercial power, as shown in FIGS. 6A and 6B. (Connection status) is maintained. Of course, as shown in FIGS. 6A and 6B, the second contact bundle 120 maintains an electrically open state with the second fixed terminal 820.

As described above, the first contact bundle 110 maintains a connection state with the first fixed terminal 810, and the second contact bundle 120 maintains an open state with the second fixed terminal 820. The shaft 550 is positioned at one end of the guide slot 311a and the second coupling shaft 650 is positioned in a state of being caught by the hooking member 320 at one point of the guide slot 311b.

On the other hand, when a power failure or the like, the automatic switching switch is a separate control device (not shown) or by the operation of the user, the first contact bundle 110 is opened with the first fixed terminal 810, the second contact bundle ( 120 is changed to the connection state with the second fixed terminal 820, the operation process will be described with reference to Figures 7a to 9c.

First, the movement control unit of the second rotational control unit moves the second coupling shaft 550 along the guide slot 320 by the operation of the control unit, and so on according to the movement of the second coupling shaft 650. As shown in FIGS. 8A and 8B, the hooking member 320 is pushed.

At this time, between the first contact bundle 110 and the first fixed terminal 810, between the second contact bundle 120 and the second fixed terminal 820, as shown in Figures 7a, 7b and 8a and 8b, all The connection state is established.

The first coupling shaft 550 is guide slot 320 as shown in FIGS. 9A and 9B by the pressing unit 280 of the first rotational control unit as the hooking member 320 is pushed out of the locked state. Will be moved to the other end.

As a result, the first contact bundle 110 is changed into an open state with the first fixed terminal 810, and the second contact bundle 120 is connected with the second fixed terminal 820. In particular, the first contact bundle 110 is maintained in a state of being connected with the first fixed terminal 810, but is opened after the second contact bundle 120 is connected to the second fixed terminal 820. Is changed to

Meanwhile, the automatic switching switch according to the present invention has a state shown in FIGS. 6A and 6B in the state shown in FIGS. 9A and 9B, and the first contact bundle 110 is connected to the first fixed terminal 810. The second contact bundle 120 will be described with reference to FIGS. 10A and 10B to describe a process of changing the second fixed terminal 820 into an open state as follows.

The movement control unit of the first rotational control unit moves the first coupling shaft 550 along the guide slot 320 by the operation of the control unit, and the like, according to the movement of the first coupling shaft 550 of FIGS. 10A and 10B. As shown in, the hooking member 320 is pushed.

When the hooking member 320 is pushed, the second coupling shaft 650 is guided by the pressing unit 280 of the second rotation control unit as shown in FIGS. 6A and 6B as it is released from the locked state. It is moved to the other end of the 320, the second coupling shaft 650 is fixed to the hooking groove 321 of the hooking member 320 in a locked state.

In this case, the first contact bundle 110 between the first fixed terminal 810 and the second contact bundle 120 between the second fixed terminal 820 are all connected to each other, as shown in FIGS. 10A and 10B.

Accordingly, the first contact bundle 110 is connected to the first fixed terminal 810 and the second contact bundle 120 is changed to the second fixed terminal 820. In particular, the second contact bundle 120 maintains a state in which it is connected to the second fixed terminal 820, and is opened after the first contact bundle 110 is connected to the first fixed terminal 810. It changes to state.

Meanwhile, the hooking member 320 releases the locking state of the second coupling shaft 650 or the first coupling shaft 550 by rotation in the state shown in FIGS. 6A and 6B or 9A and 9B. And as shown in 11b, between the first contact bundle 110, the first fixed terminal 810, the second contact bundle 120-between the second fixed terminal 820 can be changed to an open state.

Meanwhile, operations of the first rotation control unit and the second rotation control unit will be described with reference to FIGS. 6C, 7C, 8C (or 9C), 10C, and 11C.

As shown in FIGS. 6C, 7C, and 8C (or 9C), the pressurizing device 292 of the second rotation control unit pushes the coupling rod 291 connected to the first support link 270 upward. As the coupling rod 291 is pushed upward, the first support link 270 rotates around the hinge member 271, and the first support link 270 is rotated by the first support link 270. The second support link 260 rotatably coupled to the end of the push is pushed upward.

Meanwhile, the link pin 261 coupled to the other end of the second support link 260 pushes the cam link 250, and the cam link 250 rotates around the third link fixing shaft 714. The hooking link 240 fixedly coupled to the cam link 250 by the cam link 250 also rotates around the third link fixing shaft 714.

When the hooking link 240 rotates about the third link fixing shaft 714, the hooking protrusion 241b of the hooking link 240 exerts a force on the second coupling shaft 650. The second coupling shaft 650 rotates along the guide slot 311b about the third link fixing shaft 714 as shown in FIGS. 6C, 7C and 8C. At this time, the hooking member 320 is pushed by the rotation of the second coupling shaft 650, and the second coupling shaft 650 is finally caught by the hooking groove 321 of the hooking member 320.

Meanwhile, as the first coupling shaft 550 rotates the hooking member 320 as the second coupling shaft 650 is released, the elasticity of the pressing unit 280 is as shown in FIGS. 8C to 9C. The member is moved to the end of the guide slot 311a.

Meanwhile, by the rotation of the second coupling shaft 650, the elastic member 281 of the pressing unit 280 contracts while applying an elastic force to the second coupling shaft 650.

At this time, the pressing device 292 stops its operation when the second coupling shaft 650 is caught by the hooking groove 321 of the hooking member 320. In addition, the first rotation controller maintains a state corresponding to those of FIGS. 9C and 11C.

The automatic switching switch according to the present invention switches from the state shown in FIG. 6A to the state shown in FIG. 9A by the movement of the first coupling shaft 550 and the second coupling shaft 650 as described above.

Meanwhile, when the automatic switching switch switches from the state shown in FIG. 9A to the state shown in FIG. 6A by the movement of the first coupling shaft 550 and the second coupling shaft 650, the first rotation control unit is shown in FIG. 6A. 7c, 8c, and 9c, the operation is similar to that shown in FIG. At this time, the second rotation controller maintains the same state as in FIGS. 9C and 11C.

Meanwhile, when the automatic switching switch is converted to the state shown in FIG. 11A, the hooking member 320 is rotated by the control signal of the controller, and the first coupling shaft 550 is rotated by the hooking member 320. Alternatively, the locking state of the second coupling shaft 650 is released and the first coupling shaft 550 or the second coupling shaft 650 is connected to the elastic member 281 of the pressing unit 280, as shown in FIG. 11C. As a result, it is moved to the end of the guide slot 311b.

In this case, when the state shown in FIG. 11A is changed from the state shown in FIG. 6A or 9A, the first rotation control unit or the second rotation control unit may be operated.

The automatic switching switch according to the present invention has an advantage of minimizing the time required for opening and connecting the contact bundle and the fixed terminals.

In addition, the automatic switching switch according to the present invention has an advantage in that it is possible to provide a structure that can be electrically opened with all of the fixed terminals connected to each of the commercial power and emergency power.

* While the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

Claims (7)

A fixed terminal unit including a first fixed terminal connected to a commercial power source, a second fixed terminal connected to an emergency power source, and a load terminal connected to a load; A first contact bundle electrically connected to the load terminal and contacted or opened with the first fixed terminal by rotation; a second contact point electrically connected to the load terminal and contacted or opened with the second fixed terminal by rotation; Contact bundle unit including a contact bundle; And a) a first fixed shaft, a first pivotal arm rotatably coupled to the first fixed shaft, one end of which is rotatably coupled to an end of the first pivotal arm, and the other end is rotatable with the first bundle of contacts A first terminal link unit coupled to the first terminal link to rotate the first contact bundle by the rotation of the first pivotal arm; A first reference link whose one end is rotatably coupled to a first link fixing shaft parallel to the first fixed shaft, a first coupling link whose one end is rotatably coupled to the other end of the first reference link, and one end thereof A first connecting link rotatably coupled to the other end of the first coupling link, the other end being rotatably coupled to a second link fixing shaft parallel to the first fixed shaft, and one end of the first pivoting arm; A first control link unit rotatably coupled with a first sub control link, the other end being rotatably coupled with the first connection link between both ends of the first connection link; A first link unit connected to the first control link unit and including a first rotation control unit for rotating the first contact bundle through the first terminal link unit; b) a second fixed shaft, a second pivotal arm rotatably coupled to the second fixed shaft, one end of which is rotatably coupled to an end of the second pivotal arm, and the other end is rotatable with the second bundle of contacts. A second terminal link portion coupled to the second terminal link portion to rotate the second contact bundle by rotation of the second pivotal arm; A second reference link, one end of which is rotatably coupled to the first link fixing shaft, a second coupling link, of which one end is rotatably coupled to the other end of the second reference link, and the second link fixing shaft. A second connection link, one end of which is rotatably coupled to the other end of the second coupling link, one end of which is rotatably coupled to the end of the second pivotal arm, and the other end of which is coupled to the other end of the second linking link. A second control link unit including a second sub control link rotatably coupled; A second link unit connected to the second control link unit and including a second rotation control unit for rotating the second contact bundle through the second terminal link unit; And c) limiting the behavior of the first link portion and the second link portion, i) the first contact bundle and the first fixed terminal are opened after the second contact bundle and the second fixed terminal are connected, or ii The second contact bundle and the second fixed terminal are opened after the first contact bundle and the first fixed terminal are connected, or iii) both of the first contact bundle and the second contact bundle are opened. A switching unit including an operation interlocking unit to control the state; Automatic switching switch comprising a. The method of claim 1, The other end of the first reference link and the first coupling link are rotatably coupled by a first coupling shaft, the other end of the second reference link and the second coupling link are coupled by a second coupling shaft, The first rotational control unit includes a first pressing unit for applying an elastic force to the end of the first guide slot by the first reference link with respect to the first link fixing shaft, and by contracting the first pressing unit so that the first coupling shaft is connected to the first linking shaft. A first movement control unit for moving the first guide slot, The second pivotal control part includes a second pressing part for applying an elastic force to the end of the second guide slot by the second reference link around the third link fixing shaft, and contracting the second pressing part so that the second coupling shaft is formed in the And a second movement control unit for moving the second guide slot. The method of claim 2, The operation interlocking unit A guide frame in which a guide slot into which the first coupling shaft and the second coupling shaft are fitted is formed to guide the first coupling shaft and the second coupling shaft to rotate within a predetermined angle range about the first link fixing shaft. And a hooking member having a hooking groove for holding the first coupling shaft or the second coupling shaft in a locked state such that the first coupling shaft or the second coupling shaft can be fixed at a specific position of the guide slot. Automatic switching switch characterized in that. The method of claim 2 or 3, The movement control units of the first rotation control unit and the second rotation control unit are respectively A hooking link having a pair of hooking protrusions rotatably coupled to the first link fixing shaft or the third link fixing shaft and formed to engage the first coupling shaft or the second coupling shaft; A rotational link unit rotating the hooking link to rotate the first coupling shaft or the second coupling shaft engaged in the hooking protrusions by rotating about the first link fixing shaft or the third link fixing shaft; And a rotating part for rotating the hooking link by moving the rotating link part. The method of claim 3, wherein The hooking groove is an automatic switching switch, characterized in that formed with a step. The method of claim 2 or 3, The operation interlocking unit When switching between one of the first contact bundle-first fixed terminal, the second contact bundle-second fixed terminal to switch between any one of which is open, and one of which is connected, to control which one is opened through the connected state Automatic switching switch characterized by. A fixed terminal unit including a commercial power terminal, an emergency power terminal, and a load terminal; A contact bundle part including a first contact bundle contacting or opening with the commercial power supply terminal, and a second contact bundle contacting or opening with the emergency power terminal; And a) a first terminal link portion for rotating the first contact bundle by rotation; A first control link unit for rotating the first terminal link unit; A first link unit connected to the first control link unit and including a first rotation control unit for rotating the first contact bundle through the first terminal link unit; b) a second terminal link portion for rotating the second contact bundle by rotation; A second control link unit for rotating the second terminal link unit; A second link unit connected to the second control link unit and including a second rotation control unit for rotating the second contact bundle through the second terminal link unit; And c) limiting the behavior of the first link portion and the second link portion, i) the first contact bundle and the commercial power supply terminal are opened after the second contact bundle and the emergency power terminal are connected, or ii) The second contact bundle and the emergency power supply terminal are opened after the first contact bundle and the commercial power supply terminal are connected, or iii) the first contact bundle and the second contact bundle are controlled to be opened. Switching unit including an operation interlocking unit for; Automatic switching switch comprising a.

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