KR200350765Y1 - Breakdown section automatic opening and shutting apparatus - Google Patents

Abstract

The present invention relates to a failure section automatic switchgear, by interlocking the first spring for transmitting the elastic force to the first locking portion for power supply and the second, third spring for transmitting the elastic force to the second locking portion for power off The present invention relates to a failure section automatic opening and closing device capable of quickly performing a power supply and a power cut, thereby preventing a short circuit accident caused by an unnecessary supply of power.

According to the present invention, the first, second, third base plates installed to maintain a predetermined interval; Driving means installed at one side of the plurality of base plates to generate a rotational force; A power transmission unit which receives the rotational force of the driving means and decelerates by a plurality of reduction gears to convert into a seesaw motion; A first elastic part compressed by the power transmission part; A second elastic part tensioned by the seesaw motion of the power transmission part; A first locking part provided with a main shaft rotating the predetermined angle by receiving the compressive elastic force of the first elastic part and connecting the movable contact and the fixed contact to supply power; And a second locking part which receives the tensile elastic force of the second elastic part and rotates the main shaft of the first locking part by a predetermined angle to separate the movable contact and the fixed contact to cut off the power. do.

Description

Breakdown section automatic opening and shutting apparatus

The present invention relates to a failure section automatic switch, and more particularly, a first spring for transmitting the elastic force to the first locking portion for power supply and a second, third spring for transmitting the elastic force to the second locking portion for power interruption. By interlocking with each other, the first spring is compressed to a critical point for power supply, and when the compressive force is accumulated, the second and third springs are tensioned to take a preliminary action to cut off the power in advance to quickly supply power and cut off the power. The present invention relates to an automatic fault breaker that can prevent short-circuits caused by unnecessary power supply.

In general, in the transmission and distribution power system, which is a power system provided in industrial sites and homes, there are always electrical accidents caused by external physical contact such as tree contact, lightning, vehicle accidents, and wind. As a result, the fault current generated by the power system accident causes electrical or mechanical damage to the connected equipment. Therefore, it is necessary to cut off the power supply of the line part which a fault occurred promptly.

1 shows a flow in which a conventional automatic cashier operates. The driving method of the conventional manipulator is a critical point operation method of one toggle spring. In other words, if there is no abnormality on the track, the failure section automatic switchgear is opened. At this time, the power connection is operated when the latch spring is reached and the latch is connected to the lever connected to the toggle spring. The contact is connected to the fixed contact so that current flows normally.

On the other hand, in the event of a fault on the track, the manipulator is moved to the shut-off mode. The toggle spring is reversed to reach the critical point and the latch is released by the interlocking lever so that the movable contact of the power connection is separated from the fixed contact and the current Will block the flow.

Such a conventional failure section automatic switch has the following problems.

Fault section As the opening and closing time of the automatic switch is long, the blocking and supply are delayed, so that an accident current flows into the electric device, causing serious damage to the electric system.

An object of the present invention is to supply power by operating the first spring for transmitting the elastic force to the first locking portion for power supply and the second, third spring for transmitting the elastic force to the second locking portion for power interruption. In order to compress the first spring to a critical point to accumulate the compressive elastic force, the second and third springs are tensioned to take a preliminary operation to cut off the power at the same time as the power supply and to perform the power supply and the power cut off quickly. Accordingly, the present invention relates to a failure section automatic opener that can prevent short-circuit accidents caused by unnecessary power supply.

In addition, another object of the present invention is to drive the drive means is not only the drive of the drive motor coupled drive shaft is also possible by the manual drive unit symmetrical with the drive motor and provided with vertical and horizontal cross-axis gear. At this time, the manual drive unit is possible to change the direction according to the coupling position is to provide a failure section automatic switchgear that can be easily manually operated at a desired position irrespective of the installation position of the equipment.

1 is a flow chart of a conventional automatic switchgear;

2 is a perspective view showing a failure interval automatic switch in accordance with a preferred embodiment of the present invention;

3 is a plan view showing a failure interval automatic switch in accordance with a preferred embodiment of the present invention;

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a cross-sectional view taken along line B-B in FIG. 3;

Figure 6a is a main portion side cross-sectional view showing the initial state of the failure section automatic switch according to a preferred embodiment of the present invention according to FIG.

Figure 6b is a main portion side cross-sectional view showing an operation of releasing from the threshold point after the elastic force is stored to the threshold point by the first locking portion of the automatic fault breaker according to a preferred embodiment of the present invention according to FIG. And

FIG. 6C is a sectional view showing the main parts of an operation in which the power is opened by the second locking unit of the automatic failure switch according to the preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: failure section automatic switch 120: drive means

121: drive motor 123: manual drive unit

130: power transmission unit 134: rotating plate

136: link 140: first elastic portion

141: first spring 150: second elastic portion

151a: second spring 151b: third spring

160: first locking portion 161: main shaft

163: limit switch 165: connecting latch shaft

170: second locking portion 171: open latch shaft

According to the present invention, there is provided a failure section automatic switch for disconnecting and supplying power by separating and connecting a movable contact and a fixed contact of a power supply connection, the first, second and third base plates installed to maintain a predetermined interval; Driving means installed at one side of the plurality of base plates to generate a rotational force; A power transmission unit receiving the rotation source of the driving means and decelerating by a plurality of reduction gears to convert into a seesaw motion; A first elastic part compressed by the seesaw motion of the power transmission part; A second elastic part tensioned during compression of the first elastic part by a seesaw motion of the power transmission part; A first locking part equipped with a main shaft which receives a compressive elastic force of the first elastic part and rotates at a predetermined angle and supplies power by connecting the movable contact and the fixed contact point; And a second locking part which receives the tensile elastic force of the second elastic part and rotates the main shaft of the first locking part by a predetermined angle to separate the movable contact and the fixed contact to cut off the power.

In addition, the drive means includes a drive motor for driving the drive shaft is supplied with power and the first gear is formed on the outer periphery; It is installed to be symmetrical with the drive motor, the horizontal axle gear coupled to the end of the drive shaft, the vertical cross-axis gear and the horizontal cross-axis gear formed integrally with the rotating shaft and the manual rotation shaft on one side thereof, the horizontal cross-axis gear And the driving shaft penetrates between the third base plate and the first auxiliary plate bolted to the third base plate and vertically coupled to one side of the first auxiliary plate, and the manual rotation shaft is rotatably coupled therein. It is preferable that the through-hole is formed of a manual driving unit provided with a second auxiliary plate.

In addition, it is preferable that a plurality of through holes are formed in the first auxiliary plate of the manual driving unit so as to change the direction of the vertical cross-gear gear according to the coupling position when the bolt is coupled to the third base plate.

In addition, the driving force transmission unit is a rotation shaft coupled to one side adjacent to the first gear formed in the drive shaft rotatable, a first coupled to one side of the rotation shaft in contact with the first gear to reduce the rotational speed of the first gear A reduction gear, a second gear formed at an outer periphery of the rotary shaft, a driven shaft rotatably coupled to an adjacent side of the second gear and having a second reducer coupled to the second gear at an outer periphery thereof, the second reducer A first protrusion shaft fixed to one side of the first protrusion shaft to control the first locking part, a second protrusion shaft fixed to an adjacent side of the first protrusion shaft to control the second locking part, and fixed to one side of the driven shaft The rotating plate is formed integrally with the second locking piece, the hinge is coupled to the other side of the rotating plate to convert the rotational movement of the rotating plate to linear movement, the hinge axis on the other side of the link It is coupled to the hinge pivot is preferably made of a first, second and third spring lever to seesaw motion by receiving the linear motion of the link around the hinge axis.

The first locking part may include the first and second driving hinge pieces integrally formed on one side of the first and second driving hinge pieces, the first and second driving hinge pieces which are rotated by the compressive elastic force of the first elastic part. A main shaft which is connected and rotates together with the first and second drive hinge pieces, and is rotatably installed on an adjacent side of the first and second drive hinge pieces, the lever being coupled to one side, and a connecting latch groove having a semicircular cross section on the other side thereof. The connection latch shaft is formed, one side is adjacent to the lever and the other side is preferably made of a guide bar for linear movement along the guide groove adjacent to the first protrusion shaft formed in the second reducer of the power transmission portion.

In addition, the second locking portion is coupled to one side of the open latch shaft, the open latch shaft coupled to one side through the third base plate and the other side is rotatable through the second base plate, the open latch shaft An open latch groove formed on the other side of the open latch shaft, the open latch groove having a semicircular cross section so as to release the second engaging piece of the power transmission unit by the elastic force of the second elastic portion when the open latch shaft rotates; It is preferable that a coupling shaft coupled to the open latch shaft protruding therethrough is perpendicular to the open latch shaft, and a trip solenoid which pulls the connecting shaft to rotate the open latch shaft at a predetermined angle when power is applied.

In addition, a latch groove having a semicircular cross section is formed at one end of the main shaft, and an adjacent side of the latch groove is caught by one side of the latch groove when the main shaft rotates by a predetermined angle to block driving of the driving motor. Preferably, a switch is provided.

Hereinafter, with reference to the accompanying drawings will be described in detail the failure interval automatic switch according to a preferred embodiment of the present invention.

Figure 2 is a perspective view showing a failure section automatic switch according to a preferred embodiment of the present invention, Figure 3 is a plan view showing a failure section automatic switch according to a preferred embodiment of the present invention, Figure 4 is a cross-sectional view taken along line AA of FIG. 5 is a cross-sectional view taken along line BB of FIG. 3.

As shown in Figure 2 to Figure 5, the failure zone automatic switchgear 100 of the present invention is the driving means 120, the power transmission unit 130, the first and second elastic parts 140 and 150 and the first and second locking It consists of parts (160, 170).

Here, the failure section automatic switchgear 100 is provided with a plurality of plates spaced apart by a predetermined distance from each other, for convenience, the first base plate 110a on the side where the driving motor 121 is installed. The second base plate 110b and the third base plate 110c are partitioned. Meanwhile, the length of the second base plate 110b is shorter than that of the first and third base plates 110a and 110c.

The driving means 120 is coupled to one side of the failure section automatic switch 100 to provide a rotational force to the failure section automatic switch 100. Here, the drive means 120 is composed of a drive motor 121 and the manual drive unit 123.

On the other hand, the drive motor 121 is coupled to one side of the first base plate 110a to generate a rotational force by the power applied from the outside. In addition, one side of the driving motor 121 penetrates the first, second and third base plates 110a, 110b, and 110c, and a driving shaft 122 having a first gear 129 formed at an outer circumference thereof is coupled thereto. .

In addition, the manual driving unit 123 which is installed symmetrically with the driving motor 121 has a horizontal cross-gear gear 124a, a vertical cross-gear gear 124b meshing with the horizontal cross-gear gear 124b, and the horizontal cross-axis. It consists of first and second auxiliary plates 125a and 125b surrounding the gear 124b and the vertical cross-gear gear 124b.

Here, the horizontal cross shaft gear 124a is coupled to one side of the drive shaft 122 protruding through the third base plate 110c, and the horizontal cross shaft gear 124a and the third base plate 110c. Between the first base plate (110c) is provided with a first auxiliary plate (125a) is formed with a plurality of through holes 126 to be bolted to the third base plate (110c). On the other hand, the first auxiliary plate 125a can freely change the direction of the vertical intersecting shaft gear 124b when the bolt is coupled to the third base plate 110c according to the position of the through hole 126 formed therein.

On the other hand, one side of the first auxiliary plate 125a is coupled to the second auxiliary plate 125b perpendicular to the first auxiliary plate 125a and having a through hole 127 formed therein, and the second auxiliary plate 125a is coupled to the second auxiliary plate 125a. In the through hole 127 of the plate 125b, the manual rotation shaft 128 of the horizontal cross-axis gear 124a is inserted and engaged. Accordingly, the failure section automatic switchgear 100 can provide a manual rotational force through the rotation of the manual rotation shaft 128 as well as the electric rotational power using the drive motor 121.

Here, it is preferable that the horizontal and vertical intersecting shaft gears 124a and 124b use bevel gears.

On the other hand, the power transmission unit 130 is installed on one side of the drive means 120 receives the rotational force generated by the drive means 120. The power transmission unit 130 includes first and second reduction gears 131a and 131b, a rotating plate 134, a link 136, and first, second and third spring levers 137a, 137b and 137c. .

The first reduction gear 131a is installed to be in contact with the first gear 129 of the drive shaft 122 between the second base plate 110b and the third base plate 110c. The rotating shaft 132a is coupled to the side surface of the gear 131a so as to be rotatable to the first base plate 110a through the second base plate 110b. At this time, the second gear 139 is formed on the outer periphery of the rotating shaft 132a positioned between the first base plate 110a and the second base plate 110b.

In addition, a second reduction gear 131b is coupled to a driven shaft 132b on one side of the second gear 139, and a first locking part 160 is formed on one side of the second reduction gear 131b. The first protruding shaft 133a of the long axis for controlling the second axis and the second protruding shaft 133b of the short axis for controlling the second locking unit 170 are formed in a predetermined interval. At this time, one side of the driven shaft 132b is installed to be rotatable through the second base plate 110b, and the other side thereof is rotatably coupled to the first base plate 110a. On the other hand, one side of the driven shaft 132b protruding through the second base plate 110b is fixed to the rotating plate 134 which rotates in conjunction with the driven shaft 132b.

Here, the second locking piece 134 'is integrally formed on one side of the rotating plate 134, and the link 136 is hinged to the other side thereof. At this time, the second locking piece 134 'is rotated by the rotational force of the driving motor 121, and the second locking piece on the outer circumferential surface of the open latch shaft 171 of the first locking unit 160 to be described later when the predetermined angle is rotated. (134 '). On the other hand, the link 136 is one side is eccentrically coupled with the rotating plate 134 to convert the rotational movement of the rotating plate 134 to a linear movement.

On the other hand, in the other direction of the link 136, the first, second and third spring levers 137a, 137b and 137c are coupled to the hinge shaft 138 so as to be hinged relative to the driving motor 121 side. have. At this time, the hinge shaft 138 is installed between the first base plate (110a) and the third base plate (110c), the inner spring of the second spring lever (137b) and the third spring lever (137c) A first connecting shaft 139a is coupled, and a second connecting shaft 139b is coupled to an inner upper portion of the first spring lever 137a and the second spring lever 137b and the first, second and third spring levers. The third connecting shaft 139c is coupled to an inner lower portion of the 137a, 137b, and 137c.

Here, the other side of the link 136 is coupled to the first connecting shaft (139a) to be hinged. Therefore, the first, second, and third spring levers 137a, 137b, and 137c, which receive the linear motion of the link 136, are seesawed by the hinge shaft 138, thereby compressing the first spring 141. The second and third springs 151a and 151b are tensioned.

On the other hand, the first elastic portion 140 that receives power by the power transmission unit 130, one side is coupled to the second connecting shaft 139b of the power transmission unit 130, the other side of the first locking to be described later A hinge is coupled between the first and second driving hinge pieces 161a and 161b of the unit 160. At this time, the first elastic portion 140 receives the rotational force by the seesaw movement of the first, second, third spring levers (137a, 137b, 137c) to perform the compression and expansion movement by the elastic force. Here, the first elastic portion 140 is provided with a guide rod 142 and the first spring 141.

The guide rod 142 has one side penetrates an insertion hole formed in the second connecting shaft 139b of the power transmission unit 130, and an end thereof is coupled by a nut, and the other side of the guide rod 142 is described later. The hinge is coupled between the first and second driving hinge pieces 161a and 161b of the 160. On the other hand, the first spring 141 is installed on the outer side of the guide rod 142 to compress and expand the movement. At this time, the compression and expansion movement of the first spring 141 is performed while moving along the insertion hole of the second connecting shaft (139b) of the guide rod 142.

Here, the first spring 141 is preferably made of a compression spring.

On the other hand, one side of the second elastic portion 150 is coupled to the third connecting shaft 139c of the power transmission unit 130, the other side of the first, second, third base plates (110a, 110b, 110c) Tensile force is generated by being coupled to the first and second fixed shafts 153a and 153b installed in the inner side thereof and receiving the rotational force of the first, second and third spring levers 137a, 137b and 137c. Here, the second elastic part 150 is provided with a second spring 151a and a third spring 151b.

One side of the second spring 151a is coupled to the third connection shaft 139c installed inside the first spring lever 137a and the second spring lever 137b of the power transmission unit 130, and the other side thereof. The first, second and third spring levers 137a and 137b of the power transmission unit 130 are coupled to the first fixed shaft 153a provided between the second base plate 110b and the third base plate 110c. , 137c) is transmitted.

One side of the third spring 151b is coupled to a third connecting shaft 139c positioned between the second spring lever 137b and the third spring lever 137c, and the other side of the third spring 151b includes the first base plate ( It is coupled to the second fixed shaft 153b provided between the 110a) and the second base plate 110b to transfer the rotational force of the first, second and third spring levers 137a, 137b and 137c of the power transmission unit 130. Receive.

Here, the second and third springs 151a and 151b are preferably made of a tension spring.

On the other hand, one side of the first locking portion 160 is connected to the first elastic portion 140 and after compressing the elastic force generated in the first elastic portion 140 to a critical point from the power connection by the compression point from the critical point (not shown) Apply connection force at In this case, the first locking unit 160 is provided with first and second driving hinge pieces 161a and 161b, a connecting latch shaft 165, a lever 166, and a guide bar 169.

The first and second driving hinge pieces 161a and 161b are installed to maintain a predetermined interval on the main shaft 162 provided to be rotatable through the first base plate 110a and the second base plate 110b. The first locking piece 161a 'is integrally formed on one side of the first driving hinge piece 161a.

Here, one end of the main shaft 162 protruding through the first base plate (110a) is a shaft shaft (not shown) for moving the movable contact (not shown) of the power connection (not shown) as is known (Not shown) is connected to the link, the other end is formed with a latch groove 162a having a semicircular cross section. At this time, the switch bar 164 of the limit switch 163 is connected to the inside of the latch groove 162a, so that the switch bar 164 operates the limit switch 163 when the main shaft 162 rotates. The driving and stopping of the motor 121 are controlled.

In addition, one side of the first and second driving hinge pieces 161a and 161b may be rotatably coupled to the first base plate 110a, and the other side thereof may be rotatable to the second base plate 110b. The connection latch shaft 165 coupled to each other is installed. At this time, one side of the connecting latch shaft 165 is coupled so that the lever 166 protrudes in one direction, and the other side of the connecting latch shaft 165 coupled on the same axis as the lever 166 has a semi-circular cross section. The merchant connection latch groove 167 is formed. Here, the connection latch groove 167 is formed on the same horizontal plane as the first locking piece 161a 'of the first driving hinge piece 161a. Accordingly, the first locking piece 161a 'is locked to the outer side of the connection latch groove 167 by rotating and restoring the connection latch shaft 165, thereby preventing the first driving hinge piece 161a. Control the rotation.

On the other hand, a torsion spring 168 is installed in the connection latch shaft 165. That is, one end of the torsion spring 168 is fixed to the lever 166, and the other end thereof is fixed to the spacer 111 of the first base plate 110a and the second base plate 110b. Accordingly, the connecting latch shaft 165 returns to its original position by the elastic force of the torsion spring 168 after the rotation of the predetermined angle.

In addition, one side of the first base plate 110a adjacent to the lever 166 is bolted to the guide bar 169 having a plurality of guide grooves 169a formed therein. At this time, one side of the guide bar 169 is adjacent to the lever 166 and the other side is adjacent to the first protrusion shaft 133a formed on one side of the second reduction gear 131b. Accordingly, when the second reduction gear 131b rotates, the first protrusion shaft 133a pushes the other side of the guide bar 169 so that the guide bar 169 linearly moves along the guide groove 169a. At the same time, one side of the guide bar 169 pushes the lever 166 to rotate the connection latch shaft 165 by a predetermined angle.

As such, when the connection latch shaft 165 rotates, the first locking piece 161a 'caught on the outer circumference of the connection latch shaft 165 rotates along the connection latch groove 167. At the same time, the main shaft 162 is rotated by a predetermined angle to connect the movable contact (not shown) of the power supply connection portion (not shown) to the fixed contact (not shown). That is, the compressive force stored in the first elastic portion 140 is released from the threshold point according to the rotation of the connecting latch shaft 165 to apply a connecting force to a power connection (not shown).

On the other hand, the second locking unit 170 is installed on one side adjacent to the second reduction gear 131b of the power transmission unit 130, and receives the elastic force of the second elastic portion 150 to open the power. Here, the second locking portion 170 is provided with an open latch shaft 171 and a trip solenoid 175.

The open latch shaft 171 is rotatably coupled to one side of the first base plate 110a, and the other side of the open latch shaft 171 passes through the second base plate 110b and the third base plate 110c. It protrudes out of the base plate 110c. In this case, an open lever 172 that is simultaneously rotated with the open latch shaft 171 is coupled to one side of the open latch shaft 171 positioned between the first base plate 110a and the second base plate 110b. .

Meanwhile, an open latch groove 173 having a semicircular cross section is formed between the second base plate 110b and the third base plate 110c among the open latch shafts 171, and the third base plate 110c. A connecting shaft 174 perpendicular to the open latch shaft 171 is coupled to the open latch shaft 171 protruding from the open latch shaft 171.

Meanwhile, the trip solenoid 175 is coupled to one side of the third base plate 110c. One side of the trip solenoid 175 is coupled to the trip lever 176 in a linear motion, the connection groove 177 is formed inside the trip lever 176. In this case, the connecting shaft 174 of the open latch shaft 171 is connected to the connecting groove 177. Accordingly, when a voltage of DC 24V is applied to the trip solenoid 175, the trip solenoid 175 is excited and tripped, thereby pulling the trip lever 176 to rotate the open latch shaft 171 by a predetermined angle. Let's do it.

Here, the open latch shaft 171 may be not only rotated by the trip solenoid 175 but also by the manual driving unit 123 of the driving means 120. That is, if the manual rotation shaft 128 is rotated after the rotation of the drive motor 121 is stopped by the limit switch 163, the rotational force is driven through the horizontal and vertical cross-axis gears 124a and 124b. Is passed on. In this case, the rotational force transmitted to the drive shaft 122 is transmitted to the second reduction gear 131b through the first gear 129, the first reduction gear 131a, and the second gear 139. When the second reduction gear 131b is rotated by the rotational force transmitted as described above, the second protrusion shaft 133b is rotated together with one side of the second reduction gear 131b to open the second locking part 170. The lever 172 is pushed out to rotate the open latch shaft 171 by a predetermined angle.

As such, when the open latch shaft 171 rotates, the second engaging piece 134 ′ of the rotating plate 134 hanging on the outer circumference of the open latch shaft 171 is caused by the elastic force of the second elastic portion 150. The link 136, the first, second and third spring levers 137a, 137b, 137c and the first spring 141 that rotate along the open latch groove 173 and operate in conjunction with the rotating plate 134. The main shaft 162 is rotated by a predetermined angle to be restored to the initial position, thereby disconnecting the movable contact of the power supply connecting portion (not shown) from the fixed contact to cut off the power supply.

The operation and effect of the failure section automatic switch configured as described above will be described with reference to the drawings.

Figure 6a is a side cross-sectional view showing the initial state of the failure section automatic switch according to a preferred embodiment of the present invention, Figure 6b is a first locking portion of the failure section automatic switch according to a preferred embodiment of the present invention by FIG. A main part side cross-sectional view showing an operation of releasing from a critical point after the elastic force is stored up to a critical point, Figure 6c is a main part side showing a state in which the power is opened by the second locking portion of the automatic fault breaker according to a preferred embodiment of the present invention It is a cross section.

6A to 6C, when there is no abnormality in the initial power system, the failure section automatic switchgear 100 opens the first locking unit 160 to supply power to each electric and mechanical facility. The second and third springs 151a and 151b of the second elastic part 150 are pre-tensioned to take a preliminary operation to cut off the power.

When an accident occurs in the power system while the power is open as described above, the movable contact (not shown) of the power connection part (not shown) is separated from the fixed contact (not shown) by the failure section automatic switch 100. The power is disconnected by releasing the second locking unit 170 of the failure section automatic switch 100.

In detail, the operation relationship between the first locker 160 for storing the compressive elastic force for giving the connection force of the power supply connection momentarily and the second locker portion 170 for storing the tensile elastic force for giving the in-output power of the power supply connection in detail. The explanation is as follows.

First, the first locking unit 160 is a link force by the rotational force generated from the drive motor 121 of the drive means 120 by the gear of the power transmission unit 130 and the reduction gears to reduce the speed of the gear ( 136). At this time, the rotational force transmitted to the link 136 is changed into a linear motion by the link 136, the linear motion of the link 136 is converted by the hinge shaft 138 is hinged by the first and second The seesaw motion is converted by the three spring levers 137a, 137b, and 137c.

Here, the first spring 141 of the first elastic portion 140 is compressed by the seesaw movement of the first, second, third spring levers 137a, 137b, and 137c, and the second elastic portion 150 The second and third springs 151a and 51b are tensioned.

In this case, the compressive elastic force of the compressed first spring 141 is transmitted to the first and second drive hinge pieces 161a and 161b, and the first elastic force of the first drive hinge piece 161a is transmitted by the elastic force thus transmitted. The first engaging piece 161a 'is caught on the outer surface of the connecting latch shaft 165 and accumulates the compressive elastic force of the first spring 141 that is compressed.

Here, when the second reduction gear 131b is rotated by receiving the rotational force of the driving motor 121, the first protrusion shaft 133a formed on one side of the second reduction gear 131b is the guide bar 169. At the same time, the other side of the guide bar pushes the lever 166 of the connecting latch shaft 165 to connect the first locking piece 161a 'of the first driving hinge piece 161a to the connecting latch groove 167. To release. As such, when the first locking piece 161a 'of the first driving hinge piece 161a is released by the connection latch groove 167, the first spring 141 of the first elastic portion 140 that has been compressed is released. By this elastic restoring force, the first and second driving hinge pieces 161a and 161b of the first locking part 160 are pushed out. At this time, the main shaft 162 coupled to the first and second driving hinge pieces 161a and 161b rotates by a predetermined angle to connect a movable contact (not shown) and a fixed point (not shown) of the power connection unit (not shown). To supply power.

The second locking portion 170 operates by the tensile elastic force of the second and third springs 151a and 151b. That is, when the rotating plate 134 is rotated by the rotational force of the driving means 120, the second locking piece 134 'integrally formed on one side of the rotating plate 134 is caught on the outer circumference of the open latch shaft 171 At the same time, the link 136 of the power transmission unit 130 pulls the rotating plate 134 by the tensile elastic force of the second and third springs 151a and 151b. At this time, when a predetermined voltage is applied to the trip solenoid 175, the trip solenoid 175 is excited and tripped, thereby pulling the trip lever 176 to rotate the open latch shaft 171 by a predetermined angle.

As such, when the open latch shaft 171 is rotated by the trip solenoid 175, the second locking piece 134 ′ caught on the outer circumference of the open latch shaft 171 may be formed of the second elastic part 150. The link 136, the first, second and third spring levers 137a, 137b and 137c and the first spring which rotate along the open latch groove 173 by elastic force and operate at the same time with the rotating plate 134. 141 is restored to the initial position and the main shaft 162 is rotated by a predetermined angle to disconnect the movable contact (not shown) and the fixed contact (not shown) of the power connection (not shown) to cut off the power.

On the other hand, the open latch shaft 171 is also rotatable by the manual rotation shaft 128 of the manual drive unit 123. That is, when the manual rotation shaft 128 is rotated, the rotation source of the manual rotation shaft 128 is transmitted to the drive shaft 122 through the horizontal intersecting shaft gear 124a, and the rotation source transmitted to the drive shaft 122 is The first gear 129, the first reduction gear 131a, and the second gear 139 are transmitted to the second reduction gear 131b. When the second reduction gear 131b is rotated by the rotation force transmitted as described above, the second protrusion shaft 133b is rotated together with one side of the second reduction gear 131b to open the second locking part 170. The lever 172 is pushed out to manually open the open latch shaft 171.

The present invention is not limited to the above-described embodiments of the present invention and the accompanying drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those who have knowledge.

Therefore, according to the present invention, the power supply by operating the first spring for transmitting the elastic force to the first locking portion for power supply and the second, third spring for transmitting the elastic force to the second locking portion for power cut off, When the first spring is compressed to a critical point for supplying and the compressive elastic force is accumulated, the second and third springs are tensioned to take a preliminary operation to cut off the power at the same time as the power supply, and to perform the power supply and the power cut off quickly. Accordingly, there is an effect that can prevent the short-circuit accident caused by the unnecessary power supply.

In addition, the driving of the driving means may be performed manually by a manual driving unit which is symmetrical with the driving motor and is equipped with vertical and horizontal cross-gear gears as well as driving the driving motor which is operated at the time of supplying power. Since the direction can be changed according to the coupling position, there is an effect that the operator can easily drive the desired position regardless of the installation position of the equipment.

Claims (7)

In the automatic fault breaker section for disconnecting and supplying power by separating and connecting the movable contact point and the fixed contact point of the power supply connection part, First, second and third base plates installed to maintain a predetermined interval; Driving means installed at one side of the plurality of base plates to generate a rotational force; A power transmission unit which receives the rotational force of the driving means and decelerates by a plurality of reduction gears to convert into a seesaw motion; A first elastic part compressed by the seesaw motion of the power transmission part; A second elastic part tensioned during compression of the first elastic part by a seesaw motion of the power transmission part; A first locking part provided with a main shaft rotating the predetermined angle by receiving the compressive elastic force of the first elastic part and connecting the movable contact and the fixed contact to supply power; And And a second locking unit for rotating the main shaft of the first locking unit by a predetermined angle to receive the tensile elastic force of the second elastic unit and separating the movable contact and the fixed contact to cut off power. . The method of claim 1, wherein the driving means A driving motor which receives power and drives a drive shaft having a first gear formed on an outer circumference; It is installed to be symmetrical with the drive motor, and the horizontal cross-axis gear coupled to the end of the drive shaft, the horizontal cross-axis gear meshes with the vertical cross-axis gear integrally formed on one side of the rotating shaft and the horizontal cross-axis The driving shaft penetrates between the gear and the third base plate, and is vertically coupled to one side of the first auxiliary plate and the first auxiliary plate bolted to the third base plate, and the manual rotation shaft is rotatably coupled therein. And a manual driving unit having a second auxiliary plate having a through hole formed therein. According to claim 2, The first auxiliary plate of the manual drive unit is characterized in that a plurality of through-holes are formed to be able to change the direction of the vertical cross-gear gear according to the coupling position when the bolt and the third base plate is coupled Segment automatic switchgear. According to claim 1, wherein the driving force transmission unit A rotating shaft rotatably coupled to one side adjacent to the first gear formed on the driving shaft, a first reduction gear coupled to contact the first gear on one side of the rotating shaft, and configured to reduce the rotational speed of the first gear; A second gear formed on an outer circumference, rotatably coupled to an adjacent side of the second gear, and a driven shaft coupled to a second reducer contacting the second gear on an outer circumference thereof, fixed to one side of the second reducer A first protrusion shaft for controlling the first locking portion, a second protrusion shaft fixed to an adjacent side of the first protrusion shaft, and fixed to one side of the driven shaft and having a second locking piece integrally on one side; A rotating plate formed, a link of a long axis which is hinged to the other side of the rotating plate to convert the rotational movement of the rotating plate into a linear motion, and to enable hinge rotation by a hinge axis on the other side of the link. Around the hinge axis is the sum fault section automatic switch characterized in that the configuration including the first, second and third spring lever to seesaw motion by receiving the linear motion of said link. The method according to any one of claims 1 to 4, wherein the first locking portion The first and second driving hinge pieces, which are integrally formed on one side of the first driving hinge piece, the first and second driving hinge pieces, which are rotated by the compressive elastic force of the first elastic part, are connected to each other. The main shaft rotates together with the driving hinge piece, and the connecting latch shaft is installed on one side of the first and second driving hinge pieces so as to be rotatable, and a lever is coupled to one side and a connecting latch groove having a semicircular cross section on one side thereof is integrally formed. And a guide bar adjacent to the lever and the other side of which includes a guide bar linearly moving along the guide groove adjacent to the first protrusion shaft formed in the second speed reducer of the power transmission unit. The second locking portion according to any one of claims 1 to 4, wherein An open latch shaft coupled to one side of the open latch shaft, the open latch shaft coupled to one side of the open latch shaft to allow one side to pass through the third base plate and the other side to rotate through the second base plate; An open latch groove formed on the other side of the open latch shaft and having a semi-circular open latch groove, the open latch projecting through the second plate so as to release the second engaging piece of the power transmission portion by the elastic force of the second elastic portion when the open latch shaft is rotated. A coupling shaft coupled to the shaft perpendicular to the open latch shaft, and a trip solenoid configured to pull the connecting shaft to rotate the open latch shaft at a predetermined angle when power is applied. The driving mechanism of claim 1, wherein a latch groove having a semicircular cross section is formed at one end of the main shaft, and one side of the latch groove is caught by one side of the latch groove when the main shaft rotates by a predetermined angle. Automatic failure switch section, characterized in that the configuration further comprises a limit switch to cut off.