KR101362256B1 - Storage unit assembly and motor control center with the same - Google Patents

Abstract

The present invention relates to a receiving unit assembly and an MCC with the receiving unit assembly capable of conveniently drawing a receiving unit with an operation handle and preventing a safety accident caused by the on/off of a breaker and the drop of the receiving unit with an excessive drawing operation. The present invention comprises the operation handle (110), a gear assembly (130), a movement axis (140), and a guide unit (121). The operation handle (110) is positioned in a front cover (101). The operation handle (110) performs the operation of the breaker and the drawing and inputting operations of a receiving unit (100). The gear assembly (130) is positioned in a receiving room of the receiving unit (100) and delivers rotation force in a state of operating the operation handle (110). The movement axis (140) comprises a spiral groove (141) in which a stopping plate (161) of a stopper (160) which is fixed on the lower part of the receiving unit (100) is inserted in order to perform the drawing and inputting operations of the receiving unit (100) by receiving the rotation force from the gear assembly (130). The guide unit (121) is fixed on both sides of the receiving unit (100) to smoothly guide the drawing and inputting operations of the receiving unit (100). The operation handle (110) comprises a handle axis (111), a fixing pipe (150) for enabling the handle axis to be slid, and an insertion pipe (112) for enabling the handle axis (111) to be inserted into a front side of the fixing pipe (150).

Description

Storage Unit Assembly and Motor Control Center with the same}

The present invention relates to an accommodating unit assembly and an MCC having such an accommodating unit assembly. More particularly, the present invention relates to an MCC having an accommodating unit assembly. When the operation and withdrawal of the storage unit is due to the excessive withdrawal operation to prevent the safety accident that may occur due to the falling of the storage unit from the MCC.

In general, an MCC (Motor Control Center) is a system for centrally controlling power in driving motors provided in various industrial facilities.

The main components of the MCC include a circuit breaker, a plurality of connectors (primary to tertiary connectors), a relay, a CT (current transformer), a display lamp, and an operation switch. It affects safety.

As shown in FIG. 1, the MCC is provided in a drawer so that a plurality of storage units 10 can be pulled out along the length direction in an enclosure constituting the MCC 1.

In other words, the circuit breaker and the connector are separated as the storage unit 10 is pulled out, thereby releasing the electrical connection state.

The conventional storage unit 10 is provided with an operation handle 12 for operating a breaker in the front door 11, and a withdrawal handle 13 for taking out or inserting the storage unit 10 in the unit receiving chamber.

The operation of the breaker by the operation handle 12 can be achieved by providing a plate interlocked with the operation handle 12 through the shaft as disclosed in, for example, Japanese Utility Model Registration No. 20-458158 (Patent Document 4) When the pushing protrusion formed on the end of the plate is inserted into the locking groove of the arm and is rotated in the circular arc direction, the switch of the circuit breaker inserted in the hole of the arm is moved to the left and right.

Alternatively, as disclosed in Patent No. 10-1667926 (Patent Literature 5), an operation lever extending from the operation handle and connected to the operation handle is connected to the operation handle, and a position plate connected to the switch of the circuit breaker When the operating knob is rotated, the position plate is rotated in the operating handle by the rotation of the operating lever so that the switch of the breaker is operated to open and close.

Therefore, when the withdrawal of the storage unit 10 is required, the connection state of the connector for electrical connection provided in the interior of the storage unit 10 should be released and withdrawn. Considerably strong, the operator initially requires considerable force when placing the operation handle 12 for operating the breaker in the off mode and then grabbing the pull handle 13 and pulling it toward the operator.

Therefore, at the moment of disconnection from the connector, the operator cannot immediately stop the operation of continuously pulling the storage unit 10 strongly by the inertia of the pulling force, so that the storage unit 10 is completely separated from the MCC 1 to the floor. By falling down, there is a high possibility that a safety accident occurs due to the instep of the worker falling off.

However, the conventional storage unit 10 does not have a safety device that can stop the draw-out when it is pulled out by the excessive force, and there is always a possibility that a safety accident occurs.

In addition, conventionally, in the test work such as the MCC test, the storage unit 10 can not be set as the test position, so that the storage unit 10 must always be taken out. Therefore, There is always a possibility of a safety accident due to the falling of the housing unit.

Korean Utility Model Registration No. 20-457636 (Notice: Dec.28, 2011) Korean Patent Publication No. 1996-4292 (Notification Date: March 30, 1996) Korean Patent No. 10-797159 (Notification Date: Jan.23, 2008) Korea Registered Utility Model No. 20-458158 (Notice: 2012.1.20) Republic of Korea Patent No. 10-1067926 (Notification Date: September 26, 2011)

Accordingly, the present invention has been invented to solve the conventional problems as described above, the problem to be solved by the present invention, it is easy to take out the storage unit by rotating the one operation handle to take out and insert the storage unit. It is to provide a storage unit assembly and an MCC having such a storage unit assembly to be able to perform the withdrawal and closing operation to prevent a safety accident, and to perform a breaker operation.

In addition, the present invention allows a test operation to be performed easily without setting the test position and completely withdrawing the storage unit.

Solving means for solving the problems of the present invention, the operation handle which is provided on the front cover to perform the operation of the breaker and the withdrawal and closing operation of the storage unit; A gear assembly provided in the storage unit of the churning unit and transmitting a rotational force during operation of the manipulation handle; A moving shaft having a spiral groove into which a locking pin of a stopper fixed to a lower portion of the storage unit is inserted to rotate and receive rotational force from the gear assembly to allow the drawing unit to withdraw and insert; It includes a guide that is fixed to both sides of the storage unit to guide the withdrawal and closing operation of the storage unit smoothly,

The operation handle includes a handle shaft, a fixed tube provided with the handle shaft to be slidably movable, and an insertion tube for slidingly inserting the handle shaft in front of the fixed tube.

The inner surface of the front cover is provided with a fixing bracket, the gear assembly is coupled, the front of the gear assembly is provided with a fixing plate, the fixing bracket for accommodating the gear assembly and the moving shaft at a distance to the fixing bracket in front This is to be combined.

A catching hole is formed at one end of the guide portion, and both side plates of the accommodating unit are engaged with the catching member so as to be rotatable, thereby catching the catching hole.

The gear assembly includes a first gear formed on an outer circumferential surface of the handle shaft, a second gear that rotates in engagement with the first gear, a third gear that rotates in engagement with the second gear, and rotates in engagement with the third gear. And a fifth gear which is formed on the same shaft as the fourth gear and meshes with a gear part provided at one end of the moving shaft to transmit power.

In addition, the fixing tube is inserted into the cylindrical tubular portion moving through the handle shaft, the support plate formed at the end of the tubular portion to abut the first gear, and the engaging projection formed on one side of the handle shaft It is a structure including a groove.

In addition, the side of the support plate constituting the fixing tube is provided with an elastic member so that it can be supported in a plurality of engaging grooves formed at a plurality of intervals on the circumferential surface of the support plate.

The outer circumferential surface of the insertion tube is supported by the elastic member, the pressure plate is coupled to the sliding movement.

The insertion tube has a structure in which an insertion groove connected to the insertion groove of the fixing tube is formed while allowing the engaging projection of the handle shaft to be accessible.

One side of the pressure plate is a structure in which a projection is formed so that the locking projection of the handle shaft can enter and push from the insertion groove of the fixed tube to the insertion groove of the insertion tube.

One side of the pressure plate is a guide protrusion for entering and exiting the guide hole formed in the support plate is to be formed.

A plurality of engaging grooves are formed at intervals on the circumferential surface of the pressure plate to support the elastic member.

The fixed bracket is provided with a switch structure for indicating an operation state, the switch structure includes a switch, a switch plate movable to make a contact with the fixed bracket in a transverse direction to operate the switch, and a transverse direction from the switch plate. It is formed of a contact protrusion provided through the fixing bracket.

The front of the moving shaft is a structure in which a protrusion to push in contact with the contact projection to operate the switch plate is formed.

A locking jaw is formed in the fixing bracket, and a locking protrusion is formed on the first gear surface facing the fixing bracket so as to limit the range of rotation angle when the manipulation handle is rotated.

In addition, the present invention provides another MCC provided with an accommodating unit assembly having the above structure.

As described above, the present invention, in the storage unit provided in the MCC, the operation of the breaker, the withdrawal and input operation of the storage unit through one operation handle, and during the withdrawal and input operation of the storage unit, so as to rotate the operation handle The withdrawal and closing operation is as simple as that, but with less power.

In addition, when the storage unit is taken out, it is not drawn out by applying excessive force at once, and furthermore, since a locking member is provided on the side of the storage unit, it prevents an accident that the storage unit falls down immediately after being disconnected from the connector requiring much force from the MCC. can do.

1 is a schematic view showing a conventional MCC structure.
2 is a perspective view illustrating a storage unit assembly according to an embodiment of the present invention.
3A is an exploded perspective view of FIG. 2.
3B is an exploded perspective view of the fixing bracket removed from FIG. 3A.
Figure 3c is an exploded perspective view showing the structure of the locking projection formed on the inner surface of the first projection and the locking step formed on the inner side of the fixing bracket.
4 is an exploded perspective view of FIG. 3b seen from another side;
5 is a view showing a gear arrangement for transmitting a rotational force of the storage unit assembly according to the present invention.
6A is a cross-sectional view illustrating a relationship between a manipulation handle and a rotational force transmission structure in a state in which a storage unit is completely inserted in a rail member fixed in the storage unit assembly according to an exemplary embodiment of the present disclosure.
6B is a cross-sectional view of a state in which a switch is moved by rotation of a moving shaft from FIG. 6A and a connection is made;
Figure 6c is a cross-sectional view showing a state in which the storage unit is drawn out by the operation of the operation handle.
6D is a cross-sectional view illustrating a state in which a manipulation handle is pressed to operate a breaker.
7A and 7B are side views showing changes of the handle shaft before and after pressing the operation handle.
FIG. 7C is a cross-sectional view taken along the line AA of FIG. 7A.
FIG. 7D is a cross-sectional view taken along line BB of FIG. 7B.
8A and 8B are views illustrating a coupling relationship between a rotating plate and an elastic member before and after operation of a manipulation handle according to an exemplary embodiment of the present invention.
9a to 9d are views showing the operation state of the operation handle according to the present invention, Figure 9a is a case when the input and the breaker is turned off, Figure 9b is rotated by pressing the operation handle when the input and the breaker on, FIG. 9C illustrates a drawing state in the input and test mode. FIG.
10 is a plan view schematically illustrating a connection relationship of a storage unit assembly according to an exemplary embodiment.
FIG. 11 is a rear view illustrating an example of a circuit breaker opening and closing mechanism part for operating (opening and closing) the switch of the circuit breaker of FIG. 10.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view of the storage unit assembly for MCC according to an embodiment of the present invention.

As shown in the figure, the housing unit assembly according to an embodiment of the present invention is the front cover 101, the side plate 102 formed on both sides of the front cover 101, and the lower plate formed at the bottom ( 103 is provided with a storage unit 100 that consists of a rear plate 104 formed at the rear facing the front cover 101 to form a storage chamber therein.

The structure of the accommodation unit 100 may be in various forms, for example, there is also a structure without the back plate 103.

The front cover 101 is provided with an operation handle 110 that allows the operation of the breaker 210 (see FIG. 10) and the withdrawal and closing operation of the storage unit 100.

Of course, the front cover 101, as shown in Figure 9a, is provided with a handle 101a to facilitate the complete separation of the storage unit (100).

In addition, the storage unit 100 has a fixed plate 120 is coupled to the lower portion so that the storage unit 100 performs the withdrawal and input operation. On both sides of the fixed plate 120, the lower plate 103 is inserted into the guide portion 121 is formed to guide the sliding movement is formed, it is fixed to the MCC.

In other words, the fixing plate 120 is installed and fixed to the MCC to allow the receiving unit 100 to withdraw and insert.

A locking hole 121a is formed at one end of the guide portion 121, and the locking member 108 is rotatably coupled to both side plates 102.

The locking member 108 has a pivot shaft 108a formed at the center thereof, so that the locking member 108 is pivotally coupled around the pivot shaft 108a like a seesaw, and is divided based on the pivot shaft 108a. Among the first and second locking pieces 108b and 108c constituting the member 108, the weight of the first locking piece 108b is greater than that of the second locking piece 108c so as to be lowered toward the first locking piece 108b. Is placed.

In addition, the first locking piece (108b) is inserted into the locking hole (121a) of the guide portion 121 is formed with a locking piece (108d) bent to engage the locking.

In addition, a lower portion of the side plate 102 is provided with a plurality of rollers 109 along the longitudinal direction, and is fitted to the guide portion 121 to enable a smooth sliding movement of the storage unit 100.

In addition, the inner surface of the front cover 101 is provided with a fixing bracket 105 is coupled to the gear assembly 130, the front of the gear assembly 130 is fixed to the fixing plate (105) at a distance from the fixing bracket (105). 106). The fixing bracket 105 has a structure that is bent to form a "c" shape.

In addition, the fixing bracket 105 has a structure in which the fixing bracket 107 is coupled to allow the gear assembly 130 and the moving shaft 140 to be spaced apart at the front.

The fixing bracket 107 is bent like the fixing bracket 105 has a structure that is formed in a "c" shape.

Therefore, the fixing bracket 105 becomes a box-shaped structure, and the fixing plate 106 is provided at intervals therein.

In addition, the fixing plate 120 is provided with a plurality of spaced intervals along the entire longitudinal direction (vertical direction) of the MCC to serve as a partition plate in the MCC, as shown in Figure 1, a plurality of storage units 100 correspondingly Each may be provided.

In addition, the manipulation handle 110 is provided with a handle shaft 111 extending through the front cover 101 to a predetermined length, the handle shaft 111 is a rod as schematically shown in FIG. 116 is connected to the switch 211 of the breaker 210 to operate the switch 211 of the breaker 210.

3B and 5, a gear assembly 130 is provided on the handle shaft 111 as a power transmission means, and the first gear 131 is formed on the outer circumferential surface of the handle shaft 111. ), A second gear 132 that rotates in engagement with the first gear 131, a third gear 133 that rotates in engagement with the second gear 132, and meshes with the third gear 133. And a fourth gear 134 that rotates, and a fifth gear 135 formed on the same axis as the fourth gear 134.

The fifth gear 135 is engaged with the gear part 142 provided at one end of the moving shaft 140 in which the spiral groove 141 is formed along the longitudinal direction so as to transmit power.

3B, 6A, and 7A, a fixed tube 150 is formed around the handle shaft 111 while being fixed to the first gear 131. The handle shaft 111 is slidably coupled to the inside of the fixing tube 150.

In addition, the fixed tube 150 is formed in a cylindrical portion 151 formed in a cylindrical shape so that the handle shaft 111 can move through, and is formed at the end of the tubular portion 151 to be in contact with the first gear 131. It is a structure consisting of a support plate 152 to.

In addition, the side of the support plate 152 constituting the fixing tube 150 is provided with an elastic member 153 is supported, the elastic member 153 is composed of a plate spring forming a triangle, the support plate 152 A plurality of, preferably three, engaging grooves 152a, 152b, and 152c are formed on the circumferential surface so that the bent vertex portion 153a of the elastic member 153 is supported (Fig. 5). And FIG. 8A).

The elastic member 153 is formed with a cutout portion 153b along the longitudinal direction, as shown in FIG. 3A, and is fitted to the support plate 106 to support the plates of the fixed tube 150 at both sides of the cutout portion 153b. 152 and the pressing plate 114 to be engaged.

In addition, the elastic member 153 is assembled by being fitted to the mounting plate 154 fixed over the side of the fixing bracket 105, 107, as shown in FIG.

In addition, as shown in Figure 7c, the handle shaft 111 is provided to be slidably moved through the inside of the tubular portion 151, the locking projection 111a protrudes on the outer peripheral surface of the handle shaft 111, It is formed to have a structure that is fitted into the insertion groove (151a) of the tubular portion (151).

The locking protrusion 111a is not formed along the entire circumference of the outer circumferential surface of the handle shaft 111 and has a structure in which only a portion is formed at both sides thereof.

In addition, as shown in Figure 3a, in front of the handle shaft 111, in front of the support plate 106 is formed an insertion tube 112 for receiving the handle shaft 111 to be slidable movement, this insertion The end 112a of the tube 112 protrudes through the fixing bracket 107 and is connected through the rod 116 and the switch 211 of the known circuit breaker 210.

In addition, the outer circumferential surface of the insertion tube 112 has a structure in which the elastic member 113 is held, and the pressure plate 114 is slidably coupled to each other.

In addition, the insertion tube 112 has a structure in which the insertion groove 112b is connected to the insertion groove 151a of the fixing tube 150 to allow the engaging projection 111a of the handle shaft 111 to be accessible. .

In addition, as shown in Figure 7a and 7b, the pressing plate 114 is provided in the inner side of the support plate 106, that is, the insertion tube 112, the insertion of the insertion tube 112 while being formed in the pressing plate 114 When the protrusion 114a located in the groove 112b is formed, and the handle shaft 111 is pressed and moved in the lateral direction, it is pushed by the locking protrusion 111a of the handle shaft 111 to form the outer peripheral surface of the insertion pipe 112. The pressing plate 114 is slidably movable along the longitudinal direction.

In addition, as shown in FIG. 7A, a guide protrusion 114b protrudes and is formed on one side of the pressing plate 114 to enter and exit the guide hole 106a of the support plate 106, and as shown in FIG. 3C. On the circumferential surface of the pressure plate 114, a plurality of locking grooves 114c are formed at intervals to have a structure that is hardened with the elastic member 153.

In addition, a stopper 160 having a locking pin 161 is provided in the fixed plate 120 positioned below the moving shaft 140 to be caught by the spiral groove 141 of the moving shaft 140.

3A and 6B, the projection 143 protrudes and is formed on the front surface of the moving shaft 140 to operate the switch structure 170 provided in the fixing bracket 107.

The switch structure 170 includes a switch 171, a switch plate 172 movable to form a contact in a transverse direction to the fixing bracket 107 so as to operate the switch 171, and the switch plate 172. Is formed in a transverse direction from the structure consisting of a contact projection 173 provided to be movable through the fixing bracket 107.

10 is a plan view schematically illustrating a connection relationship between a connector and a circuit breaker of the storage unit 100 according to an exemplary embodiment of the present disclosure, and includes a primary connector 200, a circuit breaker 210, and a secondary connector ( 220), the connection state of the tertiary connector 230 is shown.

The secondary connector 220 has a structure in which the female connector 221 and the male connector 222 are connected.

The tertiary connector 230 also has a structure in which the female connector 231 and the male connector 232 are connected.

In FIG. 10, the primary connector 200 is connected to the busbar 300 and separated when the storage unit 100 is drawn out.

In addition, in FIG. 10, when the primary connector 200 is connected, external power is supplied, and when the secondary connector 220 is connected, the external power supplied through the primary connector 200 of the MCC is branched to each component. When the tertiary connector 230 is connected, a separate external auxiliary power is supplied so that power is supplied to various indicators (for example, LEDs) inside the storage unit to blink.

In FIG. 10, the part shown on the right side of the storage unit 100 shows a part of the MCC main body and maintains a fixed state during the withdrawal and closing operation of the storage unit 100.

In addition, in FIG. 10, the breaker 210 is connected through the operation handle 110 and the handle shaft 111, the front of the breaker 210, the switch of the breaker 210 by the operation of the operation handle 110, A circuit breaker opening and closing mechanism 212 for turning the 211 on and off is provided.

As shown in FIG. 11, when the breaker opening and closing mechanism part 212 is viewed as an example, it may have a pivoting structure, which is connected to the handle shaft 111 of the operation handle 110 to be rotated ( 213).

A coupling screw 213 is coupled to the rotation center of the coupling member 213 so that the coupling member 213 is rotatable and a locking piece 213a projecting forward is formed at the end of the coupling member 213, (215a) of the contact member (215) rotatably engaged with the front side of the first arm (213).

The switch 211 of the circuit breaker 210 is coupled to the coupling hole 215a formed in the contact member 215 so as to be operable.

A coupling screw 216 is coupled to the lower end of the contact member 215 so that the contact member 215 is rotated about the coupling screw 216 by the rotation of the handle shaft 111.

The switch 211 of the circuit breaker 210 inserted into the coupling hole 211 of the contact member 213 is operated in the on or off mode while the contact member 213 is rotated by the rotation of the handle shaft 111 You can.

The structure of the breaker opening / closing device 212 may be configured in various forms according to the type of the housing unit. For example, an insertion piece for inserting the switch 211 of the circuit breaker is provided by using a pinion and a rack, So that linear movement is possible.

In addition, as shown in Figure 3c, the engaging projection 131a is protruded, formed on the inner surface of the first gear 131 of the gear assembly 130, two fixing brackets 105 facing the two at intervals The locking projections 105a and 105b are formed to limit the rotation of the operation handle 110 to be made only at a predetermined angle instead of 360 degrees.

The storage unit assembly according to an embodiment of the present invention having such a structure performs extraction and insertion of the storage unit 100 and manipulation of the breaker 210 through one handle, and first, withdrawal of the storage unit 100. And rotating the operation handle 110 formed on the front cover 101 of the storage unit 100 to perform the closing operation.

More specifically, as shown in FIG. 9A, when the storage unit 100 is inserted and the breaker is to be pulled out in the OFF state, the operation handle 110 is counterclockwise as shown in FIG. 9D. Direction, wherein the handle shaft 111 of the operation handle 110 is rotated, and as shown in FIGS. 5 and 7A, the first gear of the gear assembly 130 coupled with the handle shaft 111 ( 131 rotates, and then the second gear 132 meshed with the first gear 131 rotates, and the third gear 133 and the fourth gear 134 continue to rotate.

As the fourth gear 134 is coaxially connected to the fifth gear 135 in front of it, the fourth gear 134 rotates and the fifth gear 135 also rotates. As the gear part 142 of the moving shaft 140 engaged with the 135 is rotated, the moving shaft 140 rotates.

The moving shaft 140 is formed with a spiral groove 141 along the outer circumferential surface, the spiral groove 141 of the stopper 160 provided in the fixed plate 120 located below the moving shaft 140 6A and 6B, the locking pins 161 are caught, along the spiral groove 141 by the locking pins 161 of the stopper 160 fixed as the moving shaft 140 rotates. The moving shaft 140 rotates, and then, the storage unit 100 starts to be drawn out.

If you want to withdraw to the test position for the test and inspection of the MCC, as shown in Figure 9c, withdraw only by turning the operation handle 110 counterclockwise only a little, then 1 in the storage unit 100 The secondary connectors 200 and 220 are separated, and the tertiary connector 230 maintains the connected state.

In addition, as shown in Figure 5, the front of the first gear 131 is provided with a fixing tube 150, the support plate 152 constituting the fixing tube 150 is provided with an elastic member 153 on its side. 8A and 8B, when the operation handle 110 rotates, a sound is generated while contacting the engaging grooves 152a, 152b, and 152c formed on the circumferential surface of the support plate 152. Easily and reliably recognize the operation state of the storage unit 100 is possible to operate.

That is, as the support groove 152 is rotated, the locking groove 152a is in a state in which the receiving unit 100 is inserted. Withdrawal, when the support plate 152 is rotated to reach the next locking groove 152c, the storage unit 100 continues to take out. At this time, each time the engaging grooves 152a, 152b, 152c pass, they are caught by the vertex portion 153a of the elastic member 153 and the sound is passed along with a click. In this way, the position of each mode can be easily recognized, and the state of each mode can be more surely maintained by the holding force of the elastic member 153.

In addition, as shown in FIG. 7B, the guide protrusion 114b protrudes and is formed in the pressure plate 114, and the guide hole 106a is formed in the support plate 106, and the pressure plate 114 is formed by the handle shaft ( 111) when it is pushed back to the original position, it is made smoothly.

In addition, as shown in Figure 3c, the circumferential surface of the pressure plate 114 is formed with a plurality of engaging grooves 114c at intervals, and is fitted in the elastic member 153, for the operation of the breaker 210 When the operation handle 110 is pressed and rotated, the locking protrusion 111a of the handle shaft 111 moves to enter the insertion groove 112b of the insertion pipe 112, and the locking is made, and the protrusion of the pressure plate 114 is formed. Since 114a is also located in the insertion groove 112b of the insertion tube 112, the pressure plate 114 is rotated at the same time with the insertion tube 112, and is passed along with the sound by the contact with the elastic member 153. Accordingly, when the switch 211 of the circuit breaker 210 is manipulated, it can be easily seen that the on / off state is changed, and the manipulation handle 110 can be rotated to the correct position.

FIG. 8A is a slightly drawn out state (test mode position) while the storage unit 100 is inserted, and FIG. 8B is a state in which the storage unit 100 is completely drawn out.

In addition, both side plates 102 of the storage unit 100 are provided with a rotatable locking member 108, so that when the withdrawal of the storage unit 100, the locking member 108 along the upper surface of the guide portion 121. While moving, the hooking hole 121a formed at the end of the guide portion 121 is prevented from being completely separated from the storage unit 110.

Since the locking member 108 is heavier than the second locking piece 108c formed at the rear of the first locking piece 108b and the locking piece 108d formed at the front with respect to the pivot shaft 108a, it always tilts forward. When the lock unit (108d) is immediately caught when the engaging hole (121a) when the withdrawal of the storage unit 100 is locked can be made immediately.

Therefore, the locking member 108 serves as a stopper of the storage unit 100, so that it can be prevented from falling during the withdrawal of the storage unit 100 in advance, and if it is to be completely removed, the second locking piece 108c ), The locking piece 108d may be released from the locking hole 121a, and then removed.

On the other hand, if you want to operate the breaker 210, as briefly mentioned above, the operation handle 110 is pressed and rotated, as shown in Figure 9b at the position of the operation handle 110 shown in Figure 9a When rotating the clockwise while pressing the operation handle 110 (90 degrees), the breaker is operated from the OFF state to the ON state.

More specifically, as shown in FIGS. 7A to 7D, when the manipulation handle 110 is pressed, the handle shaft 111 is pressed to slide the inside of the fixed tube 150 through which the insertion tube 112 is moved. At the same time, the insertion projections (112a) formed on the outer circumferential surface of the handle shaft (111) is moved from the insertion groove (151a) formed in the tubular portion (151) of the fixed tube (150) and the insertion tube (112). It is caught in the insertion groove (112b) formed in.

Then, the pressing plate 114 which is in close contact with the fixing bracket 107 is also pushed to move while compressing the elastic member 113 along the outer circumferential surface of the insertion tube 112. The pressing plate 114 is provided with a protrusion 114a. Is inserted into the insertion groove (112b) of the insertion tube 112, the locking projection 111a of the handle shaft 111 enters the insertion groove (112b) of the insertion tube 112 as the handle shaft 111 moves. While being pushed in contact with the protrusion 114a, the pressure plate 114 slides along the outer circumferential surface of the insertion tube 112.

In this state, when the operation handle 110 is rotated clockwise (see FIG. 9B), the handle shaft 111, the insertion tube 112, and the pressure plate 114 simultaneously rotate on the left side of the fixing bracket 106 in the drawing. Done. Accordingly, the end 112a of the insertion tube 112 also rotates at the same time, and the switch 21 of the breaker 210 connected to the rod 116 coupled to the end 112a is operated to switch from the OFF state to the ON state. Can be.

On the other hand, as shown in Figure 6a, the switch structure 170 to inform the state in the test mode through a lamp (not shown), the projection 143 protrudes on the front surface of the moving shaft 140 Is formed, when the moving shaft 140 is rotated through the gear assembly 130 by the rotation of the operation handle 110, the protruding contact projection 173 of the switch plate 172 provided in the fixing bracket 107 ), Then, as shown in FIG. 6B, the switch plate 172 may be moved to operate the switch 171 so that the lamp is turned on. The state that the lamp is turned on by operating the switch 171 indicates that the storage unit 100 is in the test mode.

When the moving shaft 140 further rotates, the moving switch plate 171 rotates and moves the protrusion 143 formed on the front surface of the moving shaft 140 to contact the locking protrusion 173 of the switch plate 172. The switch plate 171 that was pushed while being released is returned to its original position, whereby the operating state of the switch 171 is released.

As such, in the present invention, when the operation handle 110 is rotated for the withdrawal and insertion operation of the storage unit 100, the locking protrusion 111a of the handle shaft 111 is inserted into the groove 151a of the fixing tube 150. When the power supply (rotational power) is transmitted by the gear assembly 130 to rotate the moving body 140 to take out and insert the storage unit 100 while the breaker 210 is to be operated. Press the handle shaft 111 to allow the locking projection 111a of the handle shaft 111 to enter the insertion groove 112b of the insertion tube 112 and then rotate, and the insertion tube 112 and the pressure plate 114 are rotated. The switch 211 of the circuit breaker 210 connected through the end 112a of the insertion pipe 112 and the rod 116 while being rotated together may be operated on / off.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, But fall within the scope of the appended claims.

100: storage unit
101: Front cover
101a: handle
102: side plate
103:
104: rear plate
105: fixing bracket
105a, 105b: Hanging jaw
106: Support plate
106a: Guide ball
107: fixing bracket
108:
108a:
108b: First Jam
108c: Second Jammer
108d:
109: roller
110: Operation handle
111: handle shaft
111a: jamming
112: insertion tube
112a: end
112b: Insertion groove
113: elastic member
114: pressure plate
114a: protrusion
114b: Guide protrusion
114c: Hanging groove
116: load
120: fixed plate
121: guide portion
121a: Jam hole
130: gear assembly
131: first gear
131a: protrusion
132: second gear
133: third gear
134: fourth gear
135: fifth gear
140: moving axis
141: spiral groove
142: gear unit
143: projection
150: fixed tube
151: tube part
151a: Insertion Groove
152: support plate
152a, 152b, 152c: Hanging groove
153: elastic member
153a: vertex
153b: Incision
154: mounting plate
160: Stopper
161: locking pin
170: switch structure
171: Switch
172: switch plate
173: contact projection
200: Primary connector
210: Breaker
211: switch
212: Circuit breaker breaker bending
213:
213a:
214: Coupling screw
215: contact member
215a: coupling ball
216: Coupling screw
220: Secondary connector
221: Female Connector
222: male connector
230: Third Connector
231: Female Connector
232: male connector
300: busbar

Claims (13)

An operation handle 110 provided at the front cover 101 to allow the operation of the circuit breaker and the withdrawal and closing operation of the storage unit 100 to be performed;
A gear assembly 130 provided in a storage chamber of the storage unit 100 to transmit a rotational force when the manipulation handle 110 is operated;
The locking pin 161 of the stopper 160 fixed to the lower portion of the storage unit 100 is fitted to receive the rotational force from the gear assembly 130 to move and rotate the receiving unit 100. A moving shaft 140 in which a spiral groove 141 is formed;
It includes a guide portion 121 is fixed to both sides of the storage unit 100 to guide the withdrawal and input operation of the storage unit 100,
The operation handle 110 includes a handle shaft 111, a fixed tube 150 provided with the handle shaft 111 to be slidably movable, and the handle shaft 111 is inserted into the front of the fixed tube 150 by sliding. Storage unit assembly comprising an insertion tube 112 to be.
The method according to claim 1,
The inner surface of the front cover 101 is provided with a fixing bracket 105 is coupled to the gear assembly 130, the fixing plate 106 is also provided on the front of the gear assembly 130, fixing bracket 105 Receiving unit assembly characterized in that the fixing bracket 107 is coupled to accommodate the gear assembly (130) and the moving shaft (140) at a distance in front of the.
The method according to claim 1,
A catching hole 121a is formed at one end of the guide part 121, and the catching member 108 is rotatably coupled to both side plates 102 of the accommodating unit 100 so that the catching hole 121a is provided. The storage unit assembly, characterized in that the latch is made.
The method according to claim 1,
The gear assembly 130,
A first gear 131 formed on an outer circumferential surface of the handle shaft 111, a second gear 132 rotating in engagement with the first gear 131, and a second gear rotating in engagement with the second gear 132; The third gear 133, the fourth gear 134 to rotate in engagement with the third gear 133, and the fourth gear 134 is formed on the same axis and provided at one end of the moving shaft 140 And a fifth gear (135) engaged with the gear portion (142) to transmit power.
The method according to claim 1,
The fixed tube 150 has a cylindrical tubular portion 151 through which the handle shaft 111 penetrates, and a support plate 152 formed at an end of the tubular portion 151 to abut on and supported by the first gear 131. And an insertion groove (151a) into which the engaging protrusion (111a) formed on one side of the handle shaft (111) is fitted.
The method according to claim 5,
An elastic member 153 is provided on the side surface of the support plate 152 constituting the fixing tube 150 to the engaging grooves 152a, 152b and 152c formed in plural at intervals on the circumferential surface of the support plate 152. The storage unit assembly, characterized in that the finger is possible.
The method according to claim 1,
The outer circumferential surface of the insertion tube 112, the elastic member 113 is carried, the storage unit assembly, characterized in that the pressing plate 114 is slidably coupled.
The method of claim 7,
The insertion tube 112 is accommodated, characterized in that the insertion groove 112b connected to the insertion groove 151a of the fixing tube 150 is formed while allowing the engaging protrusion 111a of the handle shaft 111 to enter. Unit assembly.
The method of claim 7,
On one side of the pressure plate 114 to allow the locking projection 111a of the handle shaft 111 to enter and push from the insertion groove 151a of the fixed tube 150 to the insertion groove 112b of the insertion tube 112. Storing unit assembly, characterized in that the projection (114a) is formed.
The method of claim 7,
One side of the pressing plate 114, the receiving unit assembly, characterized in that the guide protrusion (114b) for entering and exiting the guide hole (106a) formed in the support plate 106, protruding.
The method according to claim 7 or 8,
A housing unit assembly, characterized in that a plurality of engaging grooves (114c) are formed at intervals on the circumferential surface of the pressure plate (114) to be carried out with the elastic member (153). The method according to claim 2,
A locking jaw is formed in the fixing bracket 105, and a locking protrusion 131a is formed on a surface of the first gear 131 facing the fixing bracket 105 so as to limit the range of rotation angle when the manipulation handle 110 is rotated. A receiving unit assembly, characterized in that formed.
An MCC provided with a storage unit assembly, comprising the storage unit assembly according to any one of claims 1 to 12.

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