Insertion / withdrawal device and control method therefor

Abstract

An insertion / withdrawal device is disclosed. The insertion / withdrawal device according to one aspect of the present invention comprises: a bracket unit coupled to a distribution frame; a handle unit supported by the bracket unit, and coupled to a circuit breaker disposed inside the distribution frame; a power unit which is coupled to the handle unit, so as to provide rotational force, and which is coupled to a padlock lever disposed outside the distribution frame, so as to provide rotational force; a sensor unit which is electrically connected to the power unit and generates detection information about the state of the power unit; and a control unit which is electrically connected to the sensor unit, and which uses the generated detection information so as to calculate control information for controlling the power unit, wherein the power unit includes a first power member coupled to the handle unit, and the control unit can calculate the control information by using load current value information applied to the first power member.

Description

Withdrawal device and control method thereof

[0001] The present invention relates to a draw-out device, and more particularly, to a draw-out device that can be easily combined and separated from a distribution frame, can be combined at an accurate position, can perform a plurality of operations related to the drawing-out and drawing-out of a circuit breaker, and can perform the above process safely.

[0002] A distribution board is a device that receives electricity from an external power source and transmits it to loads according to the system or purpose. The distribution board is connected to external power sources and loads, thereby energizing them.

[0003] To prevent potential power failures between external power sources and loads, distribution panels are typically equipped with circuit breakers. These circuit breakers are connected to the external power source and load, respectively, and are designed to interrupt abnormal currents. This prevents these power failures.

[0004] If a current interruption operation is performed, the circuit breaker's components may require replacement. Furthermore, it may be necessary to remove the circuit breaker from the distribution panel for maintenance. Therefore, circuit breakers are typically detachably mounted on the distribution panel.

[0005] Meanwhile, the size of switchboards and circuit breakers tends to be proportional to their rated capacity. That is, when a larger current flows, the size of the circuit breaker to interrupt it may increase. Consequently, the size of the switchboard to which the circuit breaker is connected may also increase. Consequently, a significant force is required to attach or detach the circuit breaker from the switchboard.

[0006] However, in the case of traditional switchboards and circuit breakers, the process of connecting and disconnecting the circuit breakers is performed manually. That is, this process is typically performed by a worker. In the above case, the worker is positioned adjacent to the switchboard and circuit breakers and manually connects or disconnects the circuit breakers.

[0007] Meanwhile, arcs can occur when circuit breakers electrically connect and disconnect with the distribution board. Arcs are formed by a momentary flow of high-temperature, high-voltage electrons, posing a potentially fatal hazard to workers.

[0008] Therefore, it is desirable that the process of inserting and withdrawing a circuit breaker into or out of a distribution panel be performed remotely, as far away from the circuit breaker or distribution panel as possible.

[0009] Korean Patent Document No. 10-1733705 discloses a distribution panel equipped with a vacuum circuit breaker insertion / withdrawal safety device. Specifically, the distribution panel is equipped with a vacuum circuit breaker insertion / withdrawal safety device, which includes a locking groove on the underside of a transport truck on which a vacuum circuit breaker is mounted, and a horizontal plate provided on a cradle that locks or releases the locking groove, thereby preventing arbitrary movement of the vacuum circuit breaker.

[0010] However, the distribution panel equipped with a vacuum circuit breaker entry / exit safety device disclosed in the above-mentioned prior art document assumes that the vacuum circuit breaker is manually inserted / exited into the distribution panel. In other words, the above-mentioned prior art document does not provide a method for automatically performing the insertion / exit process of the vacuum circuit breaker remotely.

[0011] Korean Patent No. 10-1912449 discloses a high-voltage switchboard with a remote racking system. Specifically, the document discloses a high-voltage switchboard with a remote racking system that allows circuit breakers within the switchboard to be remotely removed or inserted.

[0012] However, the high-voltage switchboard utilizing the remote racking system disclosed in the above-mentioned prior art requires an actuator for circuit breaker movement to be installed within the high-voltage switchboard. This means that an additional motor must be installed within the high-voltage switchboard, which includes complex and diverse configurations, and a complex wiring structure is additionally required to control it.

[0013] Furthermore, the remote racking system disclosed in the aforementioned prior art document has complex conditions for circuit breakers to be moved. Therefore, precisely inputting control signals for circuit breakers' insertion or withdrawal makes it difficult for the circuit breakers to be inserted or withdrawn smoothly.

[0014] Korean Patent No. 10-1733705 (May 8, 2017)

[0015] Korean Patent No. 10-1912449 (October 26, 2018)

[0016] The present invention is intended to solve the above problems, and an object of the present invention is to provide a draw-out device having a structure in which draw-in and draw-out of a circuit breaker can be performed safely.

[0017] Another object of the present invention is to provide a draw-out device having a structure in which the draw-in and draw-out of the circuit breaker can be remotely controlled.

[0018] Another object of the present invention is to provide a pull-out device having a structure capable of preventing accidents caused by arcs occurring during the pull-in and pull-out of a circuit breaker.

[0019] Another object of the present invention is to provide a pull-out device having a structure that is easy to install and remove.

[0020] Another object of the present invention is to provide a draw-in / out device having a structure capable of performing a locking and unlocking process that must precede the draw-in / out process of a circuit breaker, and a control method thereof.

[0021] Another object of the present invention is to provide a draw-in / out device having a structure capable of performing both locking and unlocking processes and draw-in / out processes of a circuit breaker, and a control method thereof.

[0022] Another object of the present invention is to provide a pull-out device having a structure that can easily perform the pull-out and pull-out process of a circuit breaker, and a control method thereof.

[0023] The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0024] According to one aspect of the present invention, a drawer / withdrawal device is provided, including: a bracket part coupled to a distribution frame; a handle part supported by the bracket part and coupled to a circuit breaker disposed inside the distribution frame; a power part coupled to the handle part to provide rotational force and coupled to a padlock lever disposed outside the distribution frame to provide rotational force; a sensor part electrically connected to the power part and generating detection information on a state of the power part; and a control part electrically connected to the sensor part and calculating control information for controlling the power part using the generated detection information, wherein the power part includes a first power member coupled to the handle part, and the control part calculates the control information using load current value information applied to the first power member.

[0025] At this time, the control unit may be provided with a draw-out device that calculates the control information by comparing the first reference current value information applied when the circuit breaker moves between a preset first position and a preset second position; the second reference current value information applied while the circuit breaker moves from the second position to a preset third position and the terminal of the circuit breaker and the terminal of the distribution frame are connected; and the third reference current value information applied when the circuit breaker reaches the second position or the third position with the generated load current value information.

[0026] In addition, a drawer / withdrawal device may be provided in which the first position is a position where the circuit breaker is at least partially accommodated in the distribution frame but is electrically separated, the second position is a position where a control circuit provided in the circuit breaker is electrically connected to a control circuit provided in the distribution frame but the terminal of the circuit breaker and the terminal of the distribution frame are electrically separated, and the third position is a position where the control circuit and the terminal provided in the circuit breaker are electrically connected to the control circuit and the terminal provided in the distribution frame, respectively.

[0027] At this time, the sensor unit may be provided with a lead-in / out device including a current sensor module that generates the load current value information; and a time sensor module that generates duration information regarding the time for which the load current value information continues within a preset range.

[0028] In addition, the first power member control module of the control unit may be provided with an input / output device that calculates the control information using the load current value information and the duration information calculated by the current sensor module.

[0029] At this time, the first power member control module may be provided with a drive / withdrawal device that calculates the control information so that the first power member is stopped when the first reference current value information changes to the second reference current value information within a preset first time when the first power member is operated and the circuit breaker moves from the first position to the second position.

[0030] In addition, the first power member control module may be provided with a drive / withdrawal device that calculates the control information so that the first power member is stopped when the first reference current value information sequentially changes to the second reference current value information and the third reference current value information within a preset second time when the first power member is operated and the circuit breaker moves from the second position to the third position.

[0031] At this time, the first power member control module may be provided with a drive / withdrawal device that calculates the control information so that the first power member is stopped when the first reference current value information changes to the third reference current value information within a preset second time when the first power member is operated and the circuit breaker moves from the third position to the second position.

[0032] In addition, the first power member control module may be provided with a drive / withdrawal device that calculates the control information so that the first power member is stopped when the first reference current value information changes to the third reference current value information within a preset first time when the first power member is operated and the circuit breaker moves from the second position to the first position.

[0033] At this time, the power unit may further include a second power member coupled to the padlock lever, and the control unit may be provided with a pull-out device that calculates the control information so that the second power member is first operated and stopped and then the first power member is operated.

[0034] In addition, the control unit may be provided with a pull-out device that calculates the control information so that the second power member is operated to rotate in one of the clockwise and counterclockwise directions for a preset first locking time, and then the first power member is operated, and when the preset first operating time has elapsed after the first power member is operated, the second power member is rotated in the other of the clockwise and counterclockwise directions for a preset second locking time and then stopped.

[0035] At this time, the sensor unit may be provided with a pull-out device that generates the load current value information of the first power member for a preset detection time after a preset second operation time has elapsed after the first power member is operated.

[0036] In addition, according to one aspect of the present invention, a method for controlling a drawer / withdrawal device may be provided, including: (a) a step in which a control unit controls a power unit so that a padlock lever provided in a distribution frame rotates and a circuit breaker disposed in the distribution frame moves; (b) a step in which a sensor unit generates load current value information applied to the power unit; and (c) a step in which the control unit compares the generated load current value information with preset reference current value information to control the power unit.

[0037] At this time, a method for controlling a withdrawal device may be provided, including: (a1) controlling a second power member coupled to the padlock lever so that the second power member control module rotates in one of the clockwise and counterclockwise directions for a first preset locking time; (a2) controlling the first power member so that the first power member control module rotates in one of the clockwise and counterclockwise directions for a first preset operating time after the first locking time has elapsed; and (a3) ​​controlling the second power member so that the second power member control module rotates in the other of the clockwise and counterclockwise directions for a second preset locking time after the first operating time has elapsed.

[0038] In addition, a control method of a draw-out device may be provided, wherein the step (b) includes: (b1) a step in which a current sensor module generates the load current value information for a preset detection time after a preset second operation time has elapsed; and (b2) a step in which a time sensor module generates duration information for a time elapsed after the first power member has been operated.

[0039] At this time, the step (c) may include: (c1) a step of comparing, by the first power member control module, the duration information for the time elapsed since the first power member was operated with a preset first time; (c2) a step of determining, by the first power member control module, whether the generated load current value information corresponds to preset first reference current value information when the duration information is less than or equal to the first time; (c3) a step of determining, by the first power member control module, whether the generated load current value information during the duration information has changed to preset third reference current value information; and (c4) a step of controlling, by the first power member control module, to rotate in the other direction of the clockwise and counterclockwise directions for a preset reverse rotation time after the first power member control module is stopped.

[0040] In addition, the step (c) comprises: (c5) a step of the first power member control module comparing the duration information for the time elapsed since the first power member was operated with a preset second time; (c6) a step of the first power member control module determining whether the generated load current value information corresponds to preset first reference current value information when the duration information is less than or equal to the second time; (c7) a step of the first power member control module determining whether the generated load current value information during the duration information has changed to preset second reference current value information; (c8) a step of the first power member control module determining whether the generated load current value information during the duration information has changed to preset third reference current value information; And (c9) when the load current value information changes from the first reference current value information to the third reference current value information through the second reference current value information, a control method of a draw-out device may be provided, including a step of controlling the first power member so that it rotates in the other direction among the clockwise and counterclockwise directions for a preset reverse rotation time after the first power member control module is stopped.

[0041] At this time, the step (c) may include: (c10) comparing, by the first power member control module, the duration information for the time elapsed since the first power member was operated with a preset second time; (c11) determining, by the first power member control module, whether the generated load current value information corresponds to preset first reference current value information when the duration information is less than or equal to the second time; (c12) determining, by the first power member control module, whether the generated load current value information during the duration information has changed to preset third reference current value information; and (c13) controlling, by the first power member control module, the first power member to rotate in the other direction of the clockwise and counterclockwise directions for a preset reverse rotation time after the first power member control module is stopped when the load current value information has changed from the first reference current value information to the third reference current value information.

[0042] According to the above configuration, the introduction / withdrawal device according to the embodiment of the present invention can safely perform introduction and withdrawal of the circuit breaker.

[0043] In addition, according to the above configuration, the introduction and withdrawal device according to the embodiment of the present invention can be remotely controlled for the introduction and withdrawal of the circuit breaker.

[0044] In addition, according to the above configuration, the introduction / withdrawal device according to the embodiment of the present invention can prevent accidents caused by arcs occurring when the circuit breaker is introduced or withdrawn.

[0045] In addition, according to the above configuration, the withdrawal device and its control method according to the embodiment of the present invention can be easily installed and separated.

[0046] In addition, according to the above configuration, the draw-out device and the control method thereof according to the embodiment of the present invention can perform a locking and unlocking process that must precede the draw-out process of the circuit breaker.

[0047] In addition, according to the above configuration, the withdrawal device and its control method according to the embodiment of the present invention can perform both the locking and unlocking process and the withdrawal and entry process of the circuit breaker.

[0048] In addition, according to the above configuration, the pull-out device and its control method according to the embodiment of the present invention can easily perform the pull-out process of the circuit breaker.

[0049] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0050] FIG. 1 is a perspective view illustrating a lead-in / out device and a distribution frame to which the lead-in / out device is coupled according to an embodiment of the present invention.

[0051] Figure 2 is an exploded perspective view showing the withdrawal device and distribution frame of Figure 1 separated.

[0052] Figure 3 is a perspective view showing a distribution plate provided in the distribution frame of Figure 1.

[0053] Figure 4 is a front view and a partially enlarged view showing the distribution plate of Figure 3.

[0054] Figure 5 is a rear view and a partially enlarged view showing the distribution plate of Figure 3.

[0055] Figure 6 is a perspective view illustrating the withdrawal device of Figure 1.

[0056] Figure 7 is a plan view illustrating the withdrawal device of Figure 5.

[0057] Fig. 8 is a block diagram showing the configuration of the input / output device of Fig. 5.

[0058] FIG. 9 is a block diagram showing the position of a circuit breaker moved by a drawer / withdrawal device according to an embodiment of the present invention and reference current value information at that position.

[0059] Figure 10 is a flowchart showing the flow of a control method of a withdrawal device according to an embodiment of the present invention.

[0060] Fig. 11 is a flowchart showing the detailed flow of step S100 of the control method of the input / output device of Fig. 10.

[0061] Fig. 12 is a flowchart showing the detailed flow of step S200 of the control method of the input / output device of Fig. 10.

[0062] FIG. 13 and FIG. 14 are flowcharts showing the detailed flow of step S300 of the control method of the input / output device of FIG. 10.

[0063] FIG. 15 is a flowchart illustrating the detailed flow of step S310 among steps S300 of FIGS. 13 and 14.

[0064] FIG. 16 is a flowchart illustrating the detailed flow of step S320 among steps S300 of FIGS. 13 and 14.

[0065] FIG. 17 is a flowchart illustrating the detailed flow of step S330 among steps S300 of FIGS. 13 and 14.

[0066] FIG. 18 is a flowchart showing the detailed flow of step S340 among steps S300 of FIGS. 13 and 14.

[0067] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily practice the present invention. The present invention may be implemented in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts irrelevant to the description are omitted in the drawings, and the same reference numerals designate identical or similar components throughout the specification.

[0068] The words and terms used in this specification and claims should not be construed as limited to their ordinary or dictionary meanings, but should be interpreted in a way that is consistent with the technical idea of ​​the present invention, in accordance with the principles by which the inventor can define terms and concepts in order to best explain his or her invention.

[0069] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings correspond to a preferred embodiment of the present invention, and do not represent all of the technical ideas of the present invention, so there may be various equivalents and modified examples that can replace the configuration at the time of filing of the present invention.

[0070] In the following description, descriptions of some components may be omitted to clarify the features of the present invention.

[0071]

[0072] The term "fluid communication" as used herein refers to one or more elements being fluidly connected to one another. In one embodiment, the fluid communication may be formed by elements such as conduits, pipes, or piping. In the following description, the fluid communication may be used in the same sense as one or more elements being "fluidly connected" to one another.

[0073] The term "conduction" as used herein refers to the connection of one or more elements to enable the transmission of current or electrical signals. In one embodiment, the conduction may be formed in a wired form, such as by a conductor element, or in a wireless form, such as Bluetooth, Wi-Fi, or RFID. In one embodiment, the conduction may also include the meaning of "communication."

[0074] The term "fluid" used in the following description refers to any form of material that can flow and change shape or volume, etc., due to an external force. In one embodiment, the fluid may be a liquid such as water or a gas such as air.

[0075]

[0076] Referring to FIGS. 1 and 2, a state in which a lead-in / out device (1) and a distribution frame (2) according to an embodiment of the present invention are coupled and separated is illustrated. The lead-in / out device (1) can be coupled to one side of the distribution frame (2), in the illustrated embodiment, to the front side.

[0077] The draw-out device (1) penetrates through one side of the distribution frame (2) and can be coupled with a circuit breaker (not shown) housed inside the distribution frame (2). When the draw-out device (1) is coupled to and supported by the distribution frame (2), the circuit breaker (not shown) can be inserted into or withdrawn from the distribution frame (2).

[0078] The draw-out device (1) can be detachably coupled with the distribution frame (2). In addition, the draw-out device (1) can be detachably coupled with a circuit breaker (not shown) housed inside the distribution frame (2). In the illustrated embodiment, the draw-out device (1) is moved to the rear side to be coupled with the distribution frame (2) and is moved to the front side to be separated from the distribution frame (2).

[0079] Additionally, the draw-in / out device (1) can be combined with a padlock for fixing the circuit breaker (not shown) to the distribution frame (2) before the draw-in or draw-out operation of the circuit breaker (not shown) is performed. The draw-in / out device (1) is configured to be able to operate the padlock.

[0080] That is, the draw-in / out device (1) is configured to be able to perform all operations related to drawing in and drawing out a circuit breaker (not shown) and fixing and releasing the circuit breaker (not shown). Accordingly, a single draw-in / out device (1) can perform all operations related to drawing in or withdrawing a circuit breaker (not shown), so that installation and removal operations of the circuit breaker (not shown) can be easily performed.

[0081] In addition, the pull-out device (1) according to an embodiment of the present invention can have each component at least partially detachably coupled to one another. With the above configuration, the pull-out device (1) can have each component sequentially coupled to or detached from the distribution frame (2).

[0082] Below, the distribution frame (2) will be described first, and then the introduction / withdrawal device (1) will be described later.

[0083] The distribution frame (2) accommodates a circuit breaker (not shown). The circuit breaker (not shown) accommodated in the distribution frame (2) is electrically connected to an external power source (not shown) or load (not shown). The circuit breaker (not shown) is accommodated in the distribution frame (2) and is not exposed to the outside. Accordingly, safety accidents caused by high-voltage currents flowing through the circuit breaker (not shown) can be prevented.

[0084] The distribution frame (2) can fix or release the received circuit breaker (not shown). By means of the distribution frame (2), the circuit breaker (not shown) can be maintained at a preset position or moved from said position. This process can be performed prior to the insertion or withdrawal process of the circuit breaker (not shown). Therefore, the safety of the insertion or withdrawal process of the circuit breaker (not shown) can be improved.

[0085] The distribution frame (2) may have any shape capable of accommodating a circuit breaker (not shown). In the illustrated embodiment, the distribution frame (2) is a three-dimensional shape having a length in the front-back direction, a width in the left-right direction, and a height in the up-down direction.

[0086] The distribution frame (2) is detachably coupled to the draw-out device (1). As illustrated, the distribution frame (2) is formed to have a larger volume than the draw-out device (1), and the coupling and separation can be performed according to the movement of the draw-out device (1).

[0087] In the embodiment shown in FIGS. 2 to 5, the distribution frame (2) includes a distribution frame body (2a), a distribution frame space (2b), a distribution plate (2c), a draw-in / out device coupling portion (2d), a draw-in / out device cover member (2e), a distribution frame handle (2f), a padlock lever (2g), a padlock (2h), and a return spring (2i).

[0088] The distribution frame body (2a) constitutes a part of the outer shape of the distribution frame (2). The distribution frame body (2a) at least partially surrounds the distribution frame space (2b) formed therein. In the illustrated embodiment, the distribution frame body (2a) constitutes the rear side, left side, right side, upper side, and lower side of the distribution frame (2). The distribution frame body (2a) surrounds the distribution frame space (2b) on the rear side, left side, right side, upper side, and lower side.

[0089] The distribution frame body (2a) is coupled to the distribution plate (2c). In the illustrated embodiment, the distribution frame body (2a) is removably coupled to the distribution plate (2c). Alternatively, the distribution plate (2c) may be rotatably coupled to the distribution frame body (2a).

[0090] The distribution frame space (2b) is a space that accommodates a circuit breaker (not shown). The distribution frame space (2b) is defined by being surrounded by the distribution frame body (2a) and the distribution plate (2c). As described above, the rear side, left side, right side, upper side, and lower side of the distribution frame space (2b) are surrounded by the distribution frame body (2a). The front side of the distribution frame space (2b) is surrounded by the distribution plate (2c).

[0091] The distribution frame space (2b) may have a shape corresponding to the shape of the distribution frame body (2a) and the distribution plate (2c). In the illustrated embodiment, the distribution frame space (2b) is formed as a polygonal prism-shaped space having a rectangular cross-section and a vertical height.

[0092] The front side of the distribution frame space (2b) is surrounded by a distribution plate (2c).

[0093] The distribution plate (2c) constitutes the remainder of the outer shape of the distribution frame (2). The distribution plate (2c) is coupled to the distribution frame body (2a) and surrounds the distribution frame space (2b). In the illustrated embodiment, the distribution plate (2c) is coupled to the front side of the distribution frame body (2a). In one embodiment, the distribution plate (2c) may be detachably coupled to the distribution frame (2) or rotatably coupled to the distribution frame (2).

[0094] The distribution plate (2c) is coupled with the draw-out device (1). The distribution plate (2c) and the draw-out device (1) can be detachably coupled to each other.

[0095] The distribution plate (2c) forms part of the outer shape of the distribution frame (2) and may have any shape that can be detachably coupled with the draw-out device (1). In the illustrated embodiment, the draw-out device (1) is formed in a rectangular shape having a width in the left-right direction, a height in the up-down direction, and a thickness in the front-back direction.

[0096] Although not designated by a drawing symbol, a plurality of through holes may be formed in the distribution plate (2c). The through holes may be used as passages to communicate with the distribution frame space (2b) and the outside, thereby dissipating heat generated from a circuit breaker (not shown).

[0097] A drawer / withdrawal device coupling part (2d), a drawer / withdrawal device cover member (2e), a drawer frame handle (2f), a padlock lever (2g), a padlock (2h), and a return spring (2i) are located on the distribution plate (2c).

[0098] The draw-out device coupling portion (2d) is a portion to which the draw-out device (1) is coupled. The draw-out device coupling portion (2d) is positioned on one side of the height direction of the distribution plate (2c), in the illustrated embodiment, towards the lower side. The position of the draw-out device coupling portion (2d) may vary depending on the coupling position of the circuit breaker (not illustrated) and the draw-out device (1).

[0099] The insertion / withdrawal device coupling portion (2d) may include an opening formed through the distribution plate (2c). The opening may be formed to correspond to the shape of a component among the insertion / withdrawal device (1) components to be coupled with the opening. In the illustrated embodiment, the opening is formed to have a circular cross-section, and additional grooves protruding outward are formed on the upper and lower sides, respectively. A handle portion (300) is rotatably and withdrawably coupled through the opening.

[0100] A pull-out device cover member (2e) is rotatably connected to the pull-out device coupling portion (2d).

[0101] The draw-out device cover member (2e) opens or closes the opening formed in the draw-out device coupling portion (2d). The draw-out device cover member (2e) is rotatably coupled to the draw-out device coupling portion (2d). The draw-out device cover member (2e) may be provided so as to be rotatable about one side of the radial direction of the draw-out device coupling portion (2d).

[0102] The distribution frame handle (2f) is positioned on one side of the width direction of the distribution plate (2c), in the illustrated embodiment, to the right. The distribution frame handle (2f) is a part that is gripped to move the distribution plate (2c) to open or close the distribution frame space (2b). The worker can grip the distribution frame handle (2f) and apply an external force to move the distribution plate (2c).

[0103] The padlock lever (2g) is another part to which the draw-out device (1) is coupled. The padlock lever (2g) is located on one side in the height direction of the distribution plate (2c), that is, on the lower side in the illustrated embodiment. The padlock lever (2g) is located on one side opposite to the distribution frame space (2b), that is, on the front side in the illustrated embodiment. The draw-out device (1) can be coupled with the padlock lever (2g) exposed on the front side of the distribution plate (2c).

[0104] The padlock lever (2g) can be moved by the withdrawal device (1). In one embodiment, the padlock lever (2g) can be rotated clockwise or counterclockwise by the withdrawal device (1).

[0105] The padlock lever (2g) is coupled with the padlock (2h). When the padlock lever (2g) is rotated, the padlock (2h) can also be rotated. Accordingly, the padlock (2h) can bind or release the circuit breaker (not shown), thereby allowing the circuit breaker (not shown) to be maintained or moved at a specific position.

[0106] The padlock lever (2g) is coupled with a padlock guide (not shown) provided in the insertion / withdrawal device (1). The padlock lever (2g) can be rotated by the padlock guide (not shown).

[0107] The padlock lever (2g) may be of any shape that is coupled to and can be rotated by a padlock guide (not shown). In the illustrated embodiment, the padlock lever (2g) is configured to include a portion that penetrates the distribution plate (2c) and another portion that is continuous with the front end of the portion and extends in the extension direction of the distribution plate (2c) (i.e., upward, downward, left, and right).

[0108] A padlock (2h) binds or releases a circuit breaker (not shown) housed in a distribution frame (2). The padlock (2h) is movably mounted on a distribution plate (2c). In one embodiment, the padlock (2h) can be coupled to the distribution plate (2c) so as to be rotatable in a clockwise or counterclockwise direction.

[0109] The padlock (2h) is coupled with the padlock lever (2g). The padlock (2h) can be rotated together with the padlock lever (2g). Therefore, it will be understood that when the drawer (1) rotates the padlock lever (2g), the padlock (2h) also rotates, thereby locking or releasing the circuit breaker (not shown).

[0110] The padlock (2h) can be positioned at a position corresponding to the position of the padlock lever (2g). In the illustrated embodiment, the padlock (2h) is positioned on one side, i.e., the lower side, in the height direction of the distribution plate (2c). The padlock lever (2g) is positioned on the other side facing the distribution frame space (2b), i.e., the rear side in the illustrated embodiment.

[0111] The padlock (2h) is coupled with a return spring (2i). The padlock (2h) can be applied with an elastic force that pulls in a specific direction by the return spring (2i). Therefore, when the padlock lever (2g) is not operated, the padlock (2h) can be maintained in a position that restrains the circuit breaker (not shown).

[0112] The return spring (2i) applies elastic force to the padlock (2h). The return spring (2i) can apply elastic force in a direction in which the padlock (2h) binds or releases the circuit breaker (not shown). In the embodiment illustrated in Fig. 5, the return spring (2i) is configured to apply elastic force to the padlock (2h) in a direction that pulls the right end of the padlock (2h) downward.

[0113] One side of the return spring (2i), the upper side in the illustrated embodiment, is coupled with the padlock (2h). The other side of the return spring (2i), the lower side in the illustrated embodiment, is coupled with a bracket (not indicated in the drawing) provided on the distribution plate (2c).

[0114] The return spring (2i) may be provided in any form capable of applying elastic force to the padlock (2h). In the illustrated embodiment, the return spring (2i) is provided in the form of a coil spring having a length in the vertical direction.

[0115]

[0116] Referring to FIGS. 6 to 8, a draw-out device (1) according to an embodiment of the present invention is illustrated. The draw-out device (1) according to an embodiment of the present invention is detachably coupled to a distribution frame (2). At this time, the draw-out device (1) can also be detachably coupled to a circuit breaker (not shown) accommodated or to be accommodated in the distribution frame (2). The draw-out device (1) can move the circuit breaker (not shown) in the direction of being accommodated in the distribution frame (2) or being withdrawn from the distribution frame (2).

[0117] In addition, the withdrawal device (1) according to an embodiment of the present invention is detachably coupled with a padlock lever (2g) provided on a distribution frame (2). The withdrawal device (1) can rotate the padlock lever (2g) and the padlock (2h) coupled thereto by applying a rotational force to the padlock lever (2g).

[0118] That is, the introduction / withdrawal device (1) according to an embodiment of the present invention can perform both the introduction / withdrawal process of a circuit breaker (not shown) and the binding / release process of the circuit breaker (not shown). At this time, as will be described later, the introduction / withdrawal device (1) can first perform the binding / release process of the circuit breaker (not shown) and then perform the introduction / withdrawal process of the circuit breaker (not shown).

[0119] The input / output device (1) is electrically connected to an external power source (not shown). Power for the operation of the power unit (200) described later can be transmitted from an external power source (not shown).

[0120] The draw-out device (1) is coupled with the distribution frame (2). Specifically, some components of the draw-out device (1) are coupled with the distribution plate (2c), and other components of the draw-out device (1) are coupled with the draw-out device coupling portion (2d). In addition, another component of the draw-out device (1) is coupled with the padlock lever (2g).

[0121] In the illustrated embodiment, the withdrawal device (1) includes a bracket portion (100), a power portion (200), and a handle portion (300). At this time, the handle portion (300), the bracket portion (100), and the power portion (200) are each positioned from the distribution frame (2).

[0122] The bracket part (100) constitutes the body of the pull-out device (1). The bracket part (100) is formed of a material and structure having high rigidity, and supports other components of the pull-out device (1).

[0123] The bracket part (100) can be directly connected to the distribution plate (2c). The bracket part (100) is connected to the power part (200). The bracket part (100) is positioned between the power part (200) and the distribution frame (2) and connected to them respectively. The bracket part (100) is connected to the handle part (300). The bracket part (100) rotatably supports the handle part (300). In addition, the bracket part (100) can be connected to and support some components of the power part (200).

[0124] The power unit (200) provides the power required to introduce a circuit breaker (not shown) into or withdraw a circuit breaker (not shown) from the distribution frame space (2b). In addition, the power unit (200) provides power to rotate a padlock lever (2g) and a padlock (2h) coupled thereto to lock or release the circuit breaker (not shown) at a specific position.

[0125] The power unit (200) may be provided in any form capable of moving a circuit breaker (not shown). In one embodiment, the power unit (200) may be configured to move the circuit breaker (not shown) by an electrical method such as a motor.

[0126] In the above embodiment, the power unit (200) is electrically connected to an external power source (not shown) and a control unit (500) to be described later, respectively, so as to receive power and control signals required for operation. In another embodiment, the power unit (200) may be configured to move a circuit breaker (not shown) in the form of hydraulic pressure.

[0127] The power unit (200) is coupled to the bracket unit (100). Some components of the power unit (200) are coupled to the bracket unit (100) so as to be able to slide in a direction toward the distribution frame (2) (i.e., the front side) and a direction opposite to the distribution frame (2) (i.e., the rear side).

[0128] Another component of the power unit (200) can be coupled with the bracket unit (100). The other component can be fixedly coupled to the bracket unit (10). The padlock lever (2g) can be coupled with the other component of the power unit (200) to provide power.

[0129] The power unit (200) is coupled to the handle unit (300). Some components of the power unit (200) are coupled to a circuit breaker (not shown) via the handle unit (300). The power applied by the power unit (200) can be transmitted to the circuit breaker (not shown) via the handle unit (300).

[0130] In the illustrated embodiment, the power unit (200) includes a first power member (210) and a second power member (220).

[0131] The first power member (210) may be defined as a part of the power unit (200). The first power member (210) may be coupled with the handle unit (300) and may provide rotational force to the handle unit (300). As the first power member (210) is operated, a circuit breaker (not shown) coupled with the handle unit (300) may move in a direction in which it is introduced into the distribution frame (2) or in a direction in which it is withdrawn from the distribution frame (2).

[0132] The first power member (210) is electrically connected to the sensor unit (400). The sensor unit (400) can generate any detection information related to the operation of the first power member (210).

[0133] The first power member (210) is electrically connected to the control unit (500). The operation, rotation direction, rotation speed, and rotation time of the first power member (210) can be controlled in accordance with control information calculated by the control unit (500).

[0134] The second power member (220) may be defined by the above-described other configuration of the power unit (200). The second power member (220) may be coupled with the padlock lever (2g) and may provide rotational force to the padlock lever (2g) and the padlock (2h) coupled thereto. As the second power member (220) is operated, the circuit breaker (not shown) may be fixed or released at various positions of the distribution frame (2).

[0135] The second power member (220) is electrically connected to the sensor unit (400). The sensor unit (400) can generate any detection information related to the operation of the second power member (220).

[0136] The second power member (220) is electrically connected to the control unit (500). The operation, rotation direction, rotation speed, and rotation time of the second power member (220) can be controlled in accordance with control information calculated by the control unit (500).

[0137] The first power member (210) and the second power member (220) can be operated in conjunction with each other. That is, the operation of either the first power member (210) or the second power member (220) can affect the operation of the other.

[0138] Therefore, the process of releasing the circuit breaker (not shown) and moving it to be inserted or withdrawn can be performed continuously. Consequently, the process of inserting or withdrawing the circuit breaker (not shown) can be performed quickly and easily. A detailed description of the above process will be provided below.

[0139] The positions of the first power member (210) and the second power member (220) can be determined corresponding to the positions at which they are coupled to the distribution frame (2). In the illustrated embodiment, the first power member (210) is positioned to one side of the longitudinal direction of the bracket part (100), that is, to the left, and the second power member (220) is positioned to the other side of the longitudinal direction of the bracket part (100), that is, to the right.

[0140] The handle part (300) connects the power part (200) and the circuit breaker (not shown). The handle part (300) transmits the power generated by the power part (200) to the circuit breaker (not shown), thereby performing the drawing and drawing of the circuit breaker (not shown).

[0141] The handle part (300) is coupled with the distribution frame (2). Specifically, the handle part (300) penetrates into the inlet / outlet device coupling part (2d) provided in the distribution plate (2c) and is coupled with a circuit breaker (not shown) accommodated in the distribution frame space (2b).

[0142] The handle part (300) is coupled to the bracket part (100). The handle part (300) can be rotatably supported by the bracket part (100).

[0143] The handle part (300) is coupled to the first power member (210) of the power member (200). The handle part (300) can receive power generated by the first power member (210).

[0144] The handle portion (300) extends in the direction in which the drawer (1) is coupled or separated from the distribution frame (2).

[0145] In the illustrated embodiment, the handle portion (300) extends in the forward and backward directions. One side of the handle portion (300) in the extension direction, the front side in the illustrated embodiment, is coupled with the first power member (210). The other side of the handle portion (300) in the extension direction, the rear side in the illustrated embodiment, can penetrate the drawer / withdrawal device coupling portion (2d) and be coupled with a circuit breaker (not illustrated) accommodated in the distribution frame space (2b).

[0146] Referring to FIG. 8, the withdrawal device (1) according to an embodiment of the present invention further includes a sensor unit (400) and a control unit (500).

[0147] The sensor unit (400) generates detection information regarding the operating status of the input / output device (1). The detection information generated by the sensor unit (400) is transmitted to the control unit (500) and can be utilized to calculate control information for controlling the configuration of the input / output device (1). The sensor unit (400) is electrically connected to the control unit (500).

[0148] The sensor unit (400) can generate detection information on the operating status of any configuration of the input / output device (1). In one embodiment, the sensor unit (400) can generate detection information on the operating status of the first power member (210) and the second power member (220) of the power member (200). The sensor unit (400) can be electrically connected to the first power member (210) and the second power member (220), respectively.

[0149] The sensor unit (400) can be configured in any form for generating any detection information regarding the operating status of the first power member (210) and the second power member (220). In the illustrated embodiment, the sensor unit (400) is configured to include a current sensor module (410) and a time sensor module (420).

[0150] Additionally, although not shown, the sensor unit (400) may further include a position sensor module. In the above embodiment, the sensor unit (400) may generate detection information regarding the positions of the first power member (210) and the second power member (220).

[0151] The current sensor module (410) generates detection information about the power applied to the power unit (200). In one embodiment, the current sensor module (410) may generate detection information about the magnitude of the current applied to the power unit (200). The detection information is the magnitude of the current applied to the power unit (200) when the power unit (200) is operated, and may be defined as “load current value” information.

[0152] The current sensor module (410) may be configured to detect load current value information of the first power member (210). This is because the first power member (210) substantially performs the role of moving a heavy circuit breaker (not shown).

[0153] Additionally, based on the load current value information applied to the first power member (210), it can be determined whether the circuit breaker (not shown) is moving, whether the drawing-in process is in progress, or whether the drawing-out process is complete. This is because the magnitude of the current applied to the first power member (210) changes during each process.

[0154] The detection information generated by the current sensor module (410), i.e., the load current value information, is transmitted to the control unit (500). The current sensor module (410) is electrically connected to the control unit (500).

[0155] The time sensor module (420) generates detection information about the operating time of the first power member (210) or the second power member (220). In one embodiment, the time sensor module (420) may generate detection information about the elapsed time after the first power member (210) or the second power member (220) starts operating. The detection information is information about the time for which the power member (200) continues to operate, and may be defined as duration information.

[0156] At this time, the time sensor module (420) can generate duration information of the first power member (210) and duration information of the second power member (220), respectively. To this end, the time sensor module (420) can be electrically connected to the first power member (210) and the second power member (220), respectively.

[0157] The detection information, i.e., duration information, generated by the time sensor module (420) is transmitted to the control unit (500). The time sensor module (420) is electrically connected to the control unit (500).

[0158] The control unit (500) calculates control information for controlling the operation of the power unit (200). The control unit (500) can control the power unit (200) in accordance with the calculated control information. The control unit (500) is electrically connected to the power unit (200).

[0159] The control unit (500) can calculate control information using the detection information generated by the sensor unit (400). The control unit (500) can receive the detection information generated from the sensor unit (400), i.e., load current value information and duration information. The control unit (500) is electrically connected to the sensor unit (400).

[0160] The control unit (500) may be provided in any form capable of inputting, calculating, and outputting information. In one embodiment, the control unit (500) may be provided in the form of electronic equipment including information processing means such as a CPU or microprocessor and information storage means such as an SSD, HDD, or SD.

[0161] The control unit (500) can infer the state of a circuit breaker (not shown) by comparing the load current value information with preset reference current value information (C1, C2, C3). The control unit (500) can calculate control information based on the inferred state of the circuit breaker (not shown).

[0162] Specifically, as illustrated in FIG. 9, the circuit breaker (not shown) can be positioned at one of the first position (P1), the second position (P2), and the third position (P3).

[0163] The first position (P1) may be defined as a position where a circuit breaker (not shown) is placed in the distribution frame space (2b), but is not connected to an electrical configuration provided in the distribution frame (2). The first position (P1) may be defined as a disconnect position.

[0164] The second position (P2) may be defined as a position where the circuit breaker (not shown) is moved inside the distribution frame space (2b) and connected to the control circuit (not shown) provided in the distribution frame (2), but not connected to the terminal. The second position (P2) may be defined as a test position.

[0165] The third position (P3) may be defined as a position where the circuit breaker (not shown) is moved further inward into the distribution frame space (2b) and connection with the terminal provided in the distribution frame (2) is completed. The third position (P3) may be defined as a connection position.

[0166] That is, the circuit breaker (not shown) placed at the first position (P1) moves toward the inside of the distribution frame space (2b) and passes through the second position (P2) and the third position (P3) in sequence. In addition, the circuit breaker (not shown) placed at the third position (P3) moves toward the outside of the distribution frame space (2b) and passes through the second position (P2) and the first position (P1) in sequence.

[0167] At this time, the magnitude of the current that can be determined to be moving by the circuit breaker (not shown) can be defined as the first reference current value information (C1).

[0168] That is, when the generated load current value information corresponds to the first reference current value information (C1), the control unit (500) can determine that the circuit breaker (not shown) is moving between the first position (P1) and the second position (P2) or between the second position (P2) and the third position (P3).

[0169] In one embodiment, the first reference current value information (C1) may be 0.85 times or more but 1.3 times or less in size of the load current value information generated while the circuit breaker (not shown) is moved.

[0170] That is, if the measured load current value information corresponds to the first reference current value information (C1), it can be determined that the circuit breaker (not shown) is moving.

[0171] In addition, the magnitude of the current that can be determined when a circuit breaker (not shown) is drawn in, i.e., the terminal of the circuit breaker (not shown) and the terminal of the distribution frame (2) are connected to each other, can be defined as the second reference current value information (C2).

[0172] That is, when the generated load current value information corresponds to the second reference current value information (C2), the control unit (500) can determine that the circuit breaker (not shown) is moved from the second position (P2) to the third position (P3) and is connected to the terminal of the distribution frame (2).

[0173] In one embodiment, the second reference current value information (C2) may be 1.5 times or more larger than the first reference current value information (C1), but 0.95 times or less larger than the third reference current value information (C3).

[0174] Furthermore, the magnitude of the current that can be determined when the circuit breaker (not shown) has completed its insertion or withdrawal, that is, when the movement of the circuit breaker (not shown) has been completed and the padlock (2h) has been operated and the circuit breaker (not shown) is being restrained, can be defined as the third reference current value information (C3).

[0175] That is, when the generated load current value information corresponds to the third reference current value information (C3), the control unit (500) can determine that the circuit breaker (not shown) has been placed in any one of the first to third positions (P1, P2, P3).

[0176] At this time, the third reference current value information (C3) may be the maximum current value generated when the padlock (2h) is operated. In one embodiment, the third reference current value information (C3) may be 1.5 A based on AC 120 V. The third reference current value information (C3) may be changed according to the specifications of the lead-in / out device (1) or the distribution frame (2).

[0177] Additionally, the control unit (500) can calculate control information for the second power member (220) by comparing the duration information with the preset first operation time and second operation time.

[0178] The first operating time can be defined as a reference time for the second power member (220) to be operated so that the padlock (2h) that has released the circuit breaker (not shown) rotates in the reverse direction in the direction that restrains the circuit breaker (not shown). That is, after the first operating time has elapsed after the first power member (210) is operated and movement of the circuit breaker (not shown) begins, the second power member (220) can be rotated in the reverse direction.

[0179] In one embodiment, the first operating time may be defined as 1 second (sec).

[0180] The second operating time may be defined as the reference time for the current sensor module (410) to generate load current value information again after the circuit breaker (not shown) has started to move. That is, after the first power member (210) has been operated and the circuit breaker (not shown) has started to move, it can be expected that the generated load current value information sufficiently reflects the state of the circuit breaker (not shown) when the second operating time has elapsed.

[0181] Accordingly, the current sensor module (410) regenerates load current value information for the first power member (210) when a second operating time has elapsed after the operation of the first power member (210). In one embodiment, the second operating time may be defined as 2 seconds (sec).

[0182] At this time, the current sensor module (410) can generate load current value information for a preset detection time. The detection time can be defined as the minimum time sufficient to confirm changes in the generated load current value information. In one embodiment, the detection time can be 1 second (sec).

[0183] The load current value information generated by the current sensor module (410) during a preset detection time can be used as a reference value for calculating the first reference current value information (C1).

[0184] That is, as described above, the first reference current value information (C1) can be calculated as a value between 0.85 and 1.3 times the load current value information generated during the preset detection time.

[0185] Furthermore, the control unit (500) can calculate control information for the first power member (210) by comparing the duration information with the preset first time and second time.

[0186] The first time may be defined as the time at which the circuit breaker (not shown) can be expected to have sufficiently moved from one of the first position (P1) and the second position (P2) to the other position. That is, after the first time has elapsed since the circuit breaker (not shown) has started to move from one of the isolation position and the test position to the other position, the circuit breaker (not shown) can be expected to have completely reached the other position.

[0187] If the duration information corresponds to the first time, the control unit (500) stops the first power member (210) and controls the first power member (210) to operate in the reverse direction for a preset reverse rotation time. In one embodiment, the first time may be defined as 20 seconds (sec).

[0188] The second time may be defined as the time after which the circuit breaker (not shown) can be expected to have sufficiently moved between the second position (P2) and the third position (P3). That is, after the second time has elapsed since the circuit breaker (not shown) has started to move from one of the test position and the connection position to the other position, the circuit breaker (not shown) can be expected to have completely reached the other position.

[0189] If the duration information corresponds to the second time, the control unit (500) stops the first power member (210) and controls the first power member (210) to operate in the reverse direction for a preset reverse rotation time. In one embodiment, the second time may be defined as any value in the range of 50 seconds (sec) to 110 seconds (sec).

[0190] In the illustrated embodiment, the control unit (500) includes a first power member control module (510) and a second power member control module (520).

[0191] The first power member control module (510) calculates control information for controlling the first power member (210). The first power member control module (510) can control the first power member (210) in accordance with the calculated control information.

[0192] The control information calculated by the first power member control module (510) may include any information related to the operation of the first power member (210), such as whether the first power member (210) is operating, the rotation direction, the rotation speed, and the rotation time. The first power member control module (510) is electrically connected to the first power member (210).

[0193] The first power member control module (510) can receive detection information generated by the sensor unit (400) and use the same to calculate control information. The first power member control module (510) is electrically connected to the current sensor module (410) and the time sensor module (420), respectively, and can receive load current value information and duration information generated for the first power member (210).

[0194] The first power member control module (510) can compare the load current value information with the preset reference current value information (C1, C2, C3) to calculate control information for controlling the first power member (210).

[0195] Specifically, the first power absence control module (510) can calculate whether the transmitted load current value information corresponds to any one of the first reference current value information (C1), the second reference current value information (C2), and the third reference current value information (C3) that are set in advance.

[0196] In addition, the first power absence control module (510) can calculate whether the load current value information transmitted thereafter has been changed to another one of the first reference current value information (C1), the second reference current value information (C2), and the third reference current value information (C3).

[0197] Accordingly, the first power failure control module (510) can determine whether the circuit breaker (not shown) is moved and whether the circuit breaker (not shown) is moved from one of the first to third positions (P1, P2, P3) to another position.

[0198] The first power member control module (510) can calculate control information for controlling the first power member (210) corresponding to the calculated result.

[0199] Additionally, the first power member control module (510) can compare the transmitted duration information with the preset first time and second time to calculate control information for controlling the first power member (210).

[0200] Specifically, the first power absence control module (510) can compare the transmitted duration information with the magnitude of the first time. In addition, the first power absence control module (510) can compare the transmitted duration information with the magnitude of the second time.

[0201] The first power member control module (510) can calculate control information for controlling the first power member (210) corresponding to the calculated result.

[0202] The second power member control module (520) calculates control information for controlling the second power member (220). The second power member control module (520) can control the second power member (220) in accordance with the calculated control information.

[0203] The control information calculated by the second power member control module (520) may include any information related to the operation of the second power member (220), such as whether the second power member (220) is operating, the rotation direction, the rotation speed, and the rotation time. The second power member control module (520) is electrically connected to the second power member (220).

[0204] The second power member control module (520) can receive detection information generated by the sensor unit (400) and use the information to calculate control information. The second power member control module (520) is electrically connected to the time sensor module (420) and can receive duration information generated for the second power member (220).

[0205] The second power member control module (520) can compare the transmitted duration information with the preset first time and second time to calculate control information for controlling the second power member (220).

[0206] Specifically, the second power absence control module (520) can compare the transmitted duration information with the magnitude of the first time. In addition, the second power absence control module (520) can compare the transmitted duration information with the magnitude of the second time.

[0207] The second power member control module (520) can calculate control information for controlling the second power member (220) corresponding to the calculated result.

[0208] Additionally, the second power member control module (520) can compare the transmitted duration information with the magnitude of the preset first operating time. The second power member control module (520) can calculate control information for controlling the second power member (220) corresponding to the calculated result.

[0209]

[0210] Referring to FIGS. 10 to 18, a flow chart of a control method for a withdrawal device (1) according to an embodiment of the present invention is illustrated as an example. The control method for a withdrawal device (1) according to the illustrated embodiment can be performed by each component of the withdrawal device (1) described above.

[0211] The above-described control unit (500) can calculate control information by comparing the load current value information and duration information generated according to each step to be described below with preset reference information and control the power unit (200).

[0212] In the embodiment illustrated in FIG. 10, the control method of the draw-out device (1) includes a step (S100) in which a control unit (500) controls a power unit (200) so that a padlock lever (2g) provided on a distribution frame (2) rotates and a circuit breaker (not shown) placed on the distribution frame (2) moves, a step (S200) in which a sensor unit (400) generates load current value information applied to the power unit (200), and a step (S300) in which the control unit (500) compares the generated load current value information with preset reference current value information to control the power unit (200).

[0213] Referring to FIG. 11, a detailed flow of a step (S100) in which a control unit (500) controls a power unit (200) so that a padlock lever (2g) provided on a distribution frame (2) rotates and a circuit breaker (not shown) placed on the distribution frame (2) moves is illustrated as an example. This step (S100) is a step (S100) in which a circuit breaker (not shown) fixed to one of the first to third positions (P1, P2, P3) is released from fixation and then starts moving to another position.

[0214] The second power member control module (520) controls the second power member (220) coupled with the padlock lever (2g) to rotate in either a clockwise or counterclockwise direction for a preset first locking time (S110). In this step (S110), the second power member (220) is operated to release a circuit breaker (not shown) restrained by the padlock (2h).

[0215] The first locking time may be defined as the time required for the padlock (2h) and the second power member (220) associated therewith to rotate for the circuit breaker (not shown) to be released. In one embodiment, the first locking time may be 0.62 seconds (sec).

[0216] When the first locking time has elapsed, it can be considered that the padlock (2h) has completely released the circuit breaker (not shown). Accordingly, the first power member control module (510) controls the first power member (210) to rotate in either the clockwise or counterclockwise direction for a preset first operating time (S120). In this step (S120), the first power member (210) is operated so that the circuit breaker (not shown) released from the padlock (2h) moves.

[0217] As described above, the time sensor module (420) generates duration information, which is information about the time elapsed after the first power member (210) begins operation.

[0218] When the first power member (210) is operated and the circuit breaker (not shown) starts moving and a preset first operation time has elapsed, the second power member control module (520) controls the second power member (220) coupled with the padlock lever (2g) to rotate in the other direction among clockwise and counterclockwise for a preset second locking time (S130).

[0219] That is, the first operating time can be defined as the reference time for the second power member (220) to reversely rotate the padlock lever (2g) in the other direction after the first power member (210) is operated.

[0220] In this step (S130), the second power member (220) is operated so that the padlock (2h) rotates in the direction of restraining the circuit breaker (not shown) again.

[0221] The second locking time may be defined as the time required for the released circuit breaker (not shown) to be smoothly moved by the first power member (210) to a position where the rotated padlock (2h) can remain in contact with the moving circuit breaker (not shown). In one embodiment, the second locking time may be 0.57 seconds (sec).

[0222] Accordingly, when the movement of the circuit breaker (not shown) is completed, the padlock (2h) can restrain the circuit breaker (not shown) by the restoring force applied by the return spring (2i), even if the second power member (220) is not operated separately.

[0223] Referring to FIG. 12, a detailed flow of a step (S200) in which the sensor unit (400) generates load current value information applied to the power unit (200) is illustrated as an example. This step (S200) is a step (S200) in which the sensor unit (400) generates arbitrary detection information related to the operating status of the power unit (200) and transmits it to the control unit (500). At this time, as will be described later, the sensor unit (400) can generate both load current value information and duration information.

[0224] When the preset second operating time has elapsed, the current sensor module (410) generates load current value information for the preset detection time (S210). The generated load current value information is transmitted to the control unit (500). The current sensor module (410) is electrically connected to the control unit (500). In one embodiment, the preset detection time may be 1 second. In addition, as described above, in one embodiment, the second operating time may be defined as 2 seconds (sec).

[0225] That is, the current sensor module (410) can generate load current value information after a second operating time has elapsed after the first power member (210) has been operated. This is because after the second operating time has elapsed, the operation of the first power member (210) becomes stable, and thus the reliability of the generated load current value information can be secured.

[0226] The load current value information generated by the current sensor module (410) during the detection time after the second operating time has elapsed can be utilized to calculate the first reference current value information (C1).

[0227] Additionally, the time sensor module (420) generates duration information on the elapsed time since the first power member (210) was operated (S220). The generated duration information is transmitted to the control unit (500). The time sensor module (420) is electrically connected to the control unit (500).

[0228] Referring to FIGS. 13 to 16, a detailed flow of a step (S300) in which the control unit (500) controls the power unit (200) using the generated load current value information and the preset reference current value information is illustrated as an example. This step (S300) is a step (S300) in which the control unit (500) calculates control information using the detection information generated by the sensor unit (400) and controls the power unit (200) in accordance with the calculated control information.

[0229] At this time, the control unit (500) can further use the duration information generated by the time sensor module (420) to calculate control information.

[0230] The control unit (500) controls the power unit (200) so that the circuit breaker (not shown) moves from a preset first position (P1) to a preset second position (P2) (S310). This step (S310) can be defined as a step (S310) in which the circuit breaker (not shown) in the isolation position moves to a test position.

[0231] Referring to Fig. 15, the detailed flow of this step (S310) is illustrated as an example.

[0232] The first power member control module (510) compares the duration information regarding the elapsed time since the first power member (210) was operated with a preset first time (S311). The first time may be defined as the maximum time required for a circuit breaker (not shown) that has started moving from a first position (P1) to reach a second position (P2). In one embodiment, the first time may be defined as 20 seconds (sec).

[0233] If the duration information is less than the first time, it can be expected that the circuit breaker (not shown) has not reached the second position (P2). Accordingly, the first power member control module (510) determines whether the generated load current value information corresponds to the preset first reference current value information (C1) (S312).

[0234] That is, if the generated load current value information corresponds to the first reference current value information (C1), it can be determined that the circuit breaker (not shown) is continuously moving. Accordingly, the current sensor module (410) continuously generates load current value information and transmits it to the control unit (500).

[0235] The first power absence control module (510) determines whether the load current value information generated (i.e., further generated) during the duration information has changed to the preset third reference current value information (C3) (S313).

[0236] That is, the third reference current value information (C3) is defined as the load current value applied to the first power member (210) when the movement of the circuit breaker (not shown) is completed. Accordingly, when the generated load current value information corresponds to the third reference current value information (C3), it can be determined that the circuit breaker (not shown) has completely reached the second position (P2).

[0237] Accordingly, when the load current value information changes to the third reference current value information (C3), the first power member control module (510) controls the first power member (210) to be temporarily stopped. In addition, to prevent the circuit breaker (not shown) from being restricted in an excessively moved state, the first power member control module (510) controls the first power member (210) to be rotated in one of the clockwise and counterclockwise directions for a preset reverse rotation time (S314).

[0238] Here, the reverse rotation time may be defined as the time required for the over-displaced circuit breaker (not shown) to move sufficiently to return to its intended position. In one embodiment, the reverse rotation time may be 0.75 seconds.

[0239] Next, the control unit (500) controls the power unit (200) so that the circuit breaker (not shown) moves from the second position (P2) to the preset third position (P3) (S320). This step (S320) can be defined as a step (S320) in which the circuit breaker (not shown) in the test position moves to the connection position.

[0240] Referring to Fig. 16, the detailed flow of this step (S320) is illustrated as an example.

[0241] The first power member control module (510) compares the duration information regarding the time elapsed since the first power member (210) was operated with a preset second time (S321). The second time may be defined as the maximum time required for a circuit breaker (not shown) that has started moving from a second position (P2) to reach a third position (P3) and connect to the distribution frame (2). In one embodiment, the second time may be defined as approximately 110 seconds (sec).

[0242] If the duration information is less than the second time, it can be expected that the circuit breaker (not shown) has not reached the third position (P3). Accordingly, the first power member control module (510) determines whether the generated load current value information corresponds to the preset first reference current value information (C1) (S322).

[0243] That is, if the generated load current value information corresponds to the first reference current value information (C1), it can be determined that the circuit breaker (not shown) is continuously moving. Accordingly, the current sensor module (410) continuously generates load current value information and transmits it to the control unit (500).

[0244] The first power absence control module (510) determines whether the load current value information generated (i.e., more generated) during the duration information has changed to the preset second reference current value information (C2) (S323).

[0245] That is, the second reference current value information (C2) is defined as the load current value applied to the first power member (210) while the circuit breaker (not shown) is connected to the distribution frame (2). Therefore, before the load current value information is changed to the third reference current value information (C3), a process of changing to the second reference current value information (C2) must be performed first.

[0246] When the load reference value information changes to the second reference current value information (C2), it can be determined that the circuit breaker (not shown) is in the process of being connected to the distribution frame (2). Thereafter, if the movement of the circuit breaker (not shown) continues, the circuit breaker (not shown) can completely reach the third position (P3).

[0247] Accordingly, the first power absence control module (510) determines whether the load current value information generated (i.e., additionally generated) during the duration information has changed to the preset third reference current value information (C3) (S324).

[0248] That is, the third reference current value information (C3) is defined as the load current value applied to the first power member (210) when the movement of the circuit breaker (not shown) is completed. Accordingly, when the generated load current value information corresponds to the third reference current value information (C3), it can be determined that the circuit breaker (not shown) has completely reached the third position (P3).

[0249] Accordingly, when the load current value information changes to the third reference current value information (C3), the first power member control module (510) controls the first power member (210) to be temporarily stopped. In addition, to prevent the circuit breaker (not shown) from being restricted in an excessively moved state, the first power member control module (510) controls the first power member (210) to be rotated in one of the clockwise and counterclockwise directions for a preset reverse rotation time (S325).

[0250] Here, the reverse rotation time may be defined as the time required for the over-displaced circuit breaker (not shown) to move sufficiently to return to its intended position. In one embodiment, the reverse rotation time may be 0.75 seconds.

[0251] Next, the control unit (500) controls the power unit (200) so that the circuit breaker (not shown) moves from the third position (P3) to the second position (P2) (S330). This step (S330) can be defined as a step (S330) in which the circuit breaker (not shown) in the connection position moves to the test position.

[0252] Referring to Fig. 17, the detailed flow of this step (S330) is illustrated as an example.

[0253] The first power member control module (510) compares the duration information regarding the time elapsed since the first power member (210) was operated with a preset second time (S331). The second time may be defined as the maximum time required for a circuit breaker (not shown) that has started moving from a third position (P3) to reach a second position (P2) and be disconnected from the distribution frame (2). In one embodiment, the second time may be defined as approximately 110 seconds (sec).

[0254] If the duration information is less than the second time, it can be expected that the circuit breaker (not shown) has not reached the second position (P2). Accordingly, the first power member control module (510) determines whether the generated load current value information corresponds to the preset first reference current value information (C1) (S332).

[0255] That is, if the generated load current value information corresponds to the first reference current value information (C1), it can be determined that the circuit breaker (not shown) is continuously moving. Accordingly, the current sensor module (410) continuously generates load current value information and transmits it to the control unit (500).

[0256] The first power absence control module (510) determines whether the load current value information generated (i.e., further generated) during the duration information has changed to the preset third reference current value information (C3) (S333).

[0257] That is, the third reference current value information (C3) is defined as the load current value applied to the first power member (210) when the movement of the circuit breaker (not shown) is completed. Accordingly, when the generated load current value information corresponds to the third reference current value information (C3), it can be determined that the circuit breaker (not shown) has completely reached the second position (P2).

[0258] Accordingly, when the load current value information changes to the second reference current value information (C2), the first power member control module (510) controls the first power member (210) to be temporarily stopped. In addition, to prevent the circuit breaker (not shown) from being restricted in an excessively moved state, the first power member control module (510) controls the first power member (210) to be rotated in one of the clockwise and counterclockwise directions for a preset reverse rotation time (S325).

[0259] Here, the reverse rotation time may be defined as the time required for the over-displaced circuit breaker (not shown) to move sufficiently to return to its intended position. In one embodiment, the reverse rotation time may be 0.75 seconds.

[0260] Next, the control unit (500) controls the power unit (200) so that the circuit breaker (not shown) moves from the second position (P2) to the first position (P1) (S340). This step (S340) can be defined as a step (S340) in which the circuit breaker (not shown) in the test position moves to the separation position.

[0261] Referring to Fig. 18, the detailed flow of this step (S340) is illustrated as an example.

[0262] The first power member control module (510) compares the duration information regarding the elapsed time since the first power member (210) was operated with a preset first time (S341). The first time may be defined as the maximum time required for a circuit breaker (not shown) that has started moving from a second position (P2) to reach the first position (P1). In one embodiment, the first time may be defined as 20 seconds (sec).

[0263] If the duration information is less than the first time, it can be expected that the circuit breaker (not shown) has not reached the first position (P1). Accordingly, the first power member control module (510) determines whether the generated load current value information corresponds to the preset first reference current value information (C1) (S342).

[0264] That is, if the generated load current value information corresponds to the first reference current value information (C1), it can be determined that the circuit breaker (not shown) is continuously moving. Accordingly, the current sensor module (410) continuously generates load current value information and transmits it to the control unit (500).

[0265] The first power absence control module (510) determines whether the load current value information generated (i.e., further generated) during the duration information has changed to the preset third reference current value information (C3) (S343).

[0266] That is, the third reference current value information (C3) is defined as the load current value applied to the first power member (210) when the movement of the circuit breaker (not shown) is completed. Accordingly, when the generated load current value information corresponds to the third reference current value information (C3), it can be determined that the circuit breaker (not shown) has completely reached the first position (P1).

[0267] Accordingly, when the load current value information changes to the third reference current value information (C3), the first power member control module (510) controls the first power member (210) to be temporarily stopped. In addition, to prevent the circuit breaker (not shown) from being restricted in an excessively moved state, the first power member control module (510) controls the first power member (210) to be rotated in one of the clockwise and counterclockwise directions for a preset reverse rotation time (S344).

[0268] Here, the reverse rotation time may be defined as the time required for the over-displaced circuit breaker (not shown) to move sufficiently to return to its intended position. In one embodiment, the reverse rotation time may be 0.75 seconds.

[0269] At this time, as illustrated in FIG. 13, the steps (S310, S320, S330, S340) may be performed independently of each other. In addition, as illustrated in FIG. 14, some steps (S310, S320) may be performed sequentially, and the remaining steps (S330, S340) may be performed sequentially.

[0270] In any case, it is sufficient that the steps S100 and S200 are performed before each of the steps (S310, S320, S330, S340).

[0271]

[0272] According to the above-described embodiment of the present invention, the draw-out device (1) and its control method, a single draw-out device (1) can control the movement of both the padlock lever (2g) and the circuit breaker (not shown). Therefore, the draw-out process and the movement process of the circuit breaker (not shown) can be easily performed.

[0273] In addition, the operation of the drive / withdraw device (1) and its control method according to an embodiment of the present invention can be controlled in accordance with the load current value applied to the first power member (210) that moves the circuit breaker (not shown). Accordingly, the power member (200) can be controlled in accordance with the position and state of the circuit breaker (not shown), thereby enabling precise control.

[0274] Furthermore, the withdrawal device (1) and its control method according to an embodiment of the present invention can be operated or performed by a worker outside the distribution frame (2) or apart from the distribution frame (2).

[0275] Therefore, work convenience can be improved as the worker can perform the work without having to visually check the location of the circuit breaker (not shown). Furthermore, work safety can also be improved as the worker can remotely control the drawer / withdrawal device (1) to perform the drawer / withdrawal process of the circuit breaker (not shown).

[0276]

[0277] Although the embodiments of the present invention have been described, the spirit of the present invention is not limited to the embodiments presented in this specification, and those skilled in the art who understand the spirit of the present invention will be able to easily propose other embodiments by adding, changing, deleting, or adding components within the scope of the same spirit, but this will also be considered to fall within the spirit of the present invention.

[0278]

[0279] 1: Inlet / outlet device 2: Distribution frame

[0280] 2a: Distribution frame body 2b: Distribution frame space

[0281] 2c: Distribution plate 2d: Inlet / outlet device joint

[0282] 2e: Inlet / outlet device cover part 2f: Distribution frame handle

[0283] 2g: Padlock lever 2h: Padlock

[0284] 2i: Return spring 100: Bracket part

[0285] 200: Power unit 210: First power unit

[0286] 220: Second power unit 300: Handle unit

[0287] 400: Sensor unit 410: Current sensor module

[0288] 420: Time sensor module 500: Control unit

[0289] 510: First power member control module 520: Second power member control module

[0290] C1: First reference current value information C2: Second reference current value information

[0291] C3: Third reference current value information P1: First position

[0292] P2: Second position P3: Third position

Claims

1. Bracket part combined with the distribution frame; A handle portion supported by the above bracket portion and coupled to a circuit breaker disposed inside the above distribution frame; A power unit that provides rotational force by being coupled to the handle portion and is coupled to a padlock lever arranged on the outside of the distribution frame to provide rotational force; A sensor unit electrically connected to the power unit and generating detection information on the status of the power unit; and A control unit that is electrically connected to the sensor unit and calculates control information for controlling the power unit using the generated detection information, The above power unit, It includes a first power member coupled to the handle portion, The control unit calculates the control information using the load current value information applied to the first power member. Withdrawal device.

2. In paragraph 1, The above control unit, Information on a first reference current value applied when the circuit breaker moves between a preset first position and a preset second position; Information on a second reference current value applied while the circuit breaker is moved from the second position to a preset third position and the terminal of the circuit breaker and the terminal of the distribution frame are connected; and Information on the third reference current value applied when the circuit breaker reaches the second position or the third position; Comparing the generated load current value information and calculating the control information, Withdrawal device.

3. In paragraph 2, The first position is a position where the circuit breaker is at least partially accommodated in the distribution frame, but is electrically isolated; The second position is a position where the control circuit provided in the circuit breaker is electrically connected to the control circuit provided in the distribution frame, but the terminal of the circuit breaker and the terminal of the distribution frame are electrically separated. The third position is a position where the control circuit and the terminal provided in the circuit breaker are electrically connected to the control circuit and the terminal provided in the distribution frame, respectively. Withdrawal device.

4. In paragraph 3, The above sensor part, A current sensor module that generates the above load current value information; and Including a time sensor module that generates duration information for the time during which the load current value information lasts within a preset range. Withdrawal device.

5. In paragraph 4, The first power member control module of the above control unit calculates the control information using the load current value information and the duration information calculated by the current sensor module. Withdrawal device.

6. In paragraph 5, The above first power member control module, When the first power member is operated and the circuit breaker moves from the first position to the second position, the control information is calculated so that the first power member is stopped when the first reference current value information changes to the second reference current value information within a preset first time. Withdrawal device.

7. In paragraph 5, The above first power member control module, When the first power member is operated and the circuit breaker moves from the second position to the third position, the control information is calculated so that the first power member is stopped when the first reference current value information is sequentially changed to the second reference current value information and the third reference current value information within a preset second time. Withdrawal device.

8. In paragraph 5, The above first power member control module, When the first power member is operated and the circuit breaker moves from the third position to the second position, the control information is calculated so that the first power member is stopped when the first reference current value information changes to the third reference current value information within a preset second time. Withdrawal device.

9. In paragraph 5, The above first power member control module, When the first power member is operated and the circuit breaker moves from the second position to the first position, the control information is calculated so that the first power member is stopped when the first reference current value information changes to the third reference current value information within a preset first time. Withdrawal device.

10. In paragraph 1, The above power unit, Further comprising a second power member coupled with the padlock lever; The control unit calculates the control information so that the second power member is first operated and stopped, and then the first power member is operated. Withdrawal device.

11. In paragraph 10, The above control unit, After the second power member is operated to rotate in one of the clockwise and counterclockwise directions for a preset first locking time, the first power member is operated, When the first power member is operated and a preset first operation time has elapsed, the second power member is rotated in one of the clockwise and counterclockwise directions for a preset second locking time and then stops, calculating the control information. Withdrawal device.

12. In paragraph 12, The sensor unit generates the load current value information of the first power member for a preset detection time after the preset second operation time has elapsed after the first power member is operated. Withdrawal device. 13.(a) A step of controlling a power unit so that a padlock lever provided on a distribution frame is rotated and a circuit breaker placed on the distribution frame is moved; (b) a step of generating load current value information applied to the power unit by the sensor unit; and (c) a step of controlling the power unit by comparing the generated load current value information with the preset reference current value information, Control method of a withdrawal device.

14. In paragraph 13, Step (a) above, (a1) a step of controlling a second power member coupled to the padlock lever so that the second power member control module rotates in one of a clockwise and counterclockwise direction for a preset first locking time; (a2) a step of controlling the first power member so that the first power member control module rotates in one of the clockwise and counterclockwise directions for a preset first operation time after the first locking time has elapsed; and (a3) a step of controlling the second power member so that the second power member control module rotates in the other direction of the clockwise and counterclockwise directions for a preset second locking time after the first operating time has elapsed; Control method of a withdrawal device.

15. In paragraph 13, Step (b) above, (b1) a step in which the current sensor module generates the load current value information for a preset detection time after the preset second operation time has elapsed; and (b2) a step of generating duration information about the elapsed time since the first power unit is operated by the time sensor module; Control method of a withdrawal device.

16. In paragraph 13, Step (c) above, (c1) a step of comparing the duration information for the time elapsed since the first power member was operated with the preset first time by the first power member control module; (c2) a step of determining whether the load current value information generated by the first power member control module corresponds to the first reference current value information set in advance when the duration information is less than or equal to the first time; (c3) a step of determining whether the load current value information generated during the duration information by the first power member control module has changed to the preset third reference current value information; and (c4) Including a step of controlling the first power member to rotate in one of the clockwise and counterclockwise directions for a preset reverse rotation time after the first power member control module is stopped when the load current value information changes to the third reference current value information. Control method of a withdrawal device.

17. In paragraph 13, Step (c) above, (c5) a step of comparing the duration information for the time elapsed since the first power member was operated with a preset second time by the first power member control module; (c6) If the duration information is less than or equal to the second time, a step of determining whether the load current value information generated by the first power member control module corresponds to the first reference current value information set in advance; (c7) a step of determining whether the load current value information generated during the duration information by the first power member control module has changed to the preset second reference current value information; (c8) a step of determining whether the load current value information generated during the duration information by the first power member control module has changed to the preset third reference current value information; and (c9) Including a step of controlling the first power member to rotate in one of the clockwise and counterclockwise directions for a preset reverse rotation time after the first power member control module is stopped when the load current value information changes from the first reference current value information to the third reference current value information through the second reference current value information. Control method of a withdrawal device.

18. In paragraph 13, Step (c) above, (c10) A step of comparing the duration information for the time elapsed since the first power member was operated with a preset second time by the first power member control module; (c11) When the duration information is less than or equal to the second time, a step of determining whether the load current value information generated by the first power member control module corresponds to the first reference current value information set in advance; (c12) a step of determining whether the load current value information generated during the duration information by the first power member control module has changed to preset third reference current value information; and (c13) Including a step of controlling the first power member to rotate in one of the clockwise and counterclockwise directions for a preset reverse rotation time after the first power member control module is stopped when the load current value information changes from the first reference current value information to the third reference current value information. Control method of a withdrawal device.

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