Branch power separation device of busbar for distribution panel

Abstract

The present invention relates to a branch power separation device for a main busbar in a distribution board, comprising: a lifting / lowering member that moves up and down according to the closing and opening of a switch installed on the upper surface of a case made of an insulator; a branch busbar installed on the upper part of the lifting / lowering member within the case, with both ends protruding from the case and connected to an auxiliary circuit breaker; a power bridge having one end in close contact with the lower end of the lifting / lowering member to form a first contact portion so as to short-circuit the main busbar according to the lifting / lowering operation of the lifting / lowering member, and the other end connected to the lower surface of one side of the branch busbar to form a second contact portion; and a cover installed on the upper part of the case that slides to open and close the switch.

Description

Technology Field

[0001] The present invention relates to a branch power separation device for a busbar in a distribution board, which allows for safe replacement and management of a branch circuit breaker while the power is cut off by cutting off the power to a branch busbar connected to a busbar installed in a distribution board when necessary. More specifically, it relates to a device for separating branch power of a busbar in a distribution board, which prevents electric shock accidents during facility management of a distribution board by installing a power breaker on the busbar connected to the main circuit breaker so that the branch busbar connected to the branch circuit breaker can be separated from the busbar when necessary to cut off the power. Background Technology

[0002] Generally, a distribution board consists of a structure that attaches and supports unit devices such as circuit breakers and protective relays, and an assembly of conductors (busbars, cables, etc.) that connect and link these unit devices; they are classified into ultra-high voltage, high voltage, and low voltage distribution boards depending on the voltage they handle. In such distribution boards, the main circuit that transmits power is composed of busbars, which are conductors.

[0003] Looking at the prior art in this field, the "household distribution panel capable of peak power control" of Registered Patent Publication No. 10-1554143 (Registration Date: September 14, 2015) comprises, as illustrated in FIG. 1, a main circuit breaker that receives power transmitted from the outside, a branch circuit breaker that distributes power from the main circuit breaker and outputs it or cuts off the distributed power, a main busbar electrically connected to the main circuit breaker, a branch busbar electrically connecting the main busbar and the branch circuit breaker, a peak power controller configured between the main circuit breaker and the main busbar to perform peak power control, a home appliance that operates by receiving power through the branch circuit breaker, and a magnetic switch that turns the home appliance on / off by the peak power control of the peak power controller. It is further configured to include a connection terminal that penetrates the peak power controller and protrudes to both sides to correspond to the connection terminal of the main circuit breaker, and a fastening device that connects the connection terminal of the peak power controller and the input / output connection terminal of the main circuit breaker.

[0004] A household distribution panel capable of peak power control is disclosed, wherein the peak power controller calculates the average power and predicted power within a demand period based on a synchronization signal provided by a KEPCO meter, and controls the household appliance by operating the magnetic switch when the predicted value exceeds a preset control target power.

[0005] The prior art of Fig. 1 above is explained as an example, and prevents power outages in advance by attaching or embedding a peak power controller in a main circuit breaker (MCCB) to enable peak power control in a home.

[0006] As can be seen in FIG. 1, this prior art has a structure in which an auxiliary circuit breaker is connected to both sides of a main busbar connected to a main circuit breaker and a branch (sub-wire) busbar of the auxiliary circuit breaker, and a branch wire is connected to the auxiliary circuit breaker.

[0007] The aforementioned prior art connected in this manner is configured such that a main busbar is connected to a main circuit breaker, the main busbar is connected in a direction where branch (sub-branch) busbars intersect, and auxiliary circuit breakers are installed on both sides of the branch busbars.

[0008] The above prior art has a structure in which a wire can be connected to the other connection point connected to the branch busbar after the main circuit breaker is turned off. However, when one of the multiple auxiliary circuit breakers is replaced in a distribution panel in operation, the main circuit breaker must be turned off to turn off the power to all installed auxiliary circuit breakers, which causes the entire power supply to be interrupted.

[0009] In addition, in the case of the aforementioned prior art, there is a problem of electric shock accidents when replacing the auxiliary circuit breaker without turning off the main circuit breaker during work. Prior art literature

[0010] Republic of Korea Registered Patent Publication No. 10-1554143 The problem to be solved

[0011] The present invention relates to a branch power separation device for a busbar of a distribution board, which aims to solve the above-mentioned problems by installing a branch power separation device having a branch busbar connected to a main circuit breaker of a distribution board installed for industrial or household use, and by using a switch of the branch power separation device to separate the branch busbar from the main busbar when necessary, thereby operating only the relevant branch power separation device among a plurality of branch power separation devices to cut off the electricity, thereby preventing electric shock accidents during facility management and replacement of the distribution board. means of solving the problem

[0013] The present invention, as a means for achieving the above-mentioned purpose, comprises a switch installed on the upper surface of a case made of an insulator, a lifting and lowering member that moves up and down according to "closed" and "open";

[0014] A branch busbar installed at the upper end of the lifting / lowering member within the above case, with both ends protruding from the case and connected to an auxiliary circuit breaker;

[0015] A power bridge having one end closely connected to the lower end of the lifting / lowering member to form a first contact portion so as to be short-circuited with the main busbar according to the lifting / lowering operation of the lifting / lowering member, and the other end connected to the lower surface of one side of the branch busbar to form a second contact portion;

[0016] It is characterized by including a cover that is installed on the upper part of the above case and slides to open and close the switch.

[0017] The above power bridge is connected between the first contact part and the second contact part by a braided wire made of a conductor, and the braided wire is characterized by having a fuse function that cuts when a current greater than a predetermined current (A) flows.

[0018] The above switch is characterized by having a hinge shaft formed so that one end is inserted into the case with a pivot pin to allow it to be pulled upward and pressed, and the lower end of the switch includes a connecting shaft connected to the upper end of the lifting / lowering member. Effects of the invention

[0019] The present invention provides a branch power separation device having a branch busbar connected to a main busbar of a distribution panel installed for industrial or household use, and allows the power supplied from the main busbar to the branch busbar to be short-circuited using the branch power separation device when necessary. This enables efficient facility management of the distribution panel and prevention of safety accidents during replacement by preventing electric shock accidents during work and by not cutting off the entire power supply, as it allows for the replacement of one of the multiple circuit breakers in an operating distribution panel without cutting off the main circuit breaker, but only cutting off the power to the branch power separation device installed on the main busbar of the corresponding line. Brief explanation of the drawing

[0021] FIG. 1 is an example diagram showing the internal configuration of a conventional distribution board, and FIG. 2 is a perspective view showing a branch power separation device installed on a main busbar of the invention, and FIG. 3 is an exemplary diagram showing a state in which power is applied by pressing the switch of the branch power separation device of the present invention so that the first contact part comes into close contact with the busbar. FIG. 4 is an exemplary diagram showing a state in which the power is cut off when the first connecting part is separated from the main busbar by pulling the switch of the branch power separation device of the present invention. FIG. 5 is a cross-sectional view showing the lifting and lowering member of the present invention, and FIG. 6 is an exemplary diagram showing that a branch power separation device according to the present invention has branch busbars installed on the R, S, T, and N phases, respectively, on a 4P main busbar. FIG. 7 is an exemplary diagram showing the state in which the branch power separation device of the present invention is installed on the busbar of a distribution board. Specific details for implementing the invention

[0022] The present invention will be described in detail below with reference to the attached drawings.

[0023] FIG. 2 is a perspective view showing a branch power separation device installed on a main busbar of the present invention, FIG. 3 is an exemplary diagram showing a state in which power is applied (conducted) when the switch of the branch power separation device of the present invention is pressed so that the first contact part is in close contact with the main busbar, FIG. 4 is an exemplary diagram showing a state in which power is cut off when the switch of the branch power separation device of the present invention is pulled so that the first contact part is separated from the main busbar.

[0024] The branch power separation device (10) of the present invention is composed of a case (11) made of an insulator, a switch (12), a branch busbar (15), a power bridge (19), and a busbar (27).

[0025] If we look specifically at the configuration of the branch power separation device (10) of the present invention as described above,

[0026] A lifting / lowering member that moves up and down according to the "closed" or "open" of a switch installed on the upper surface of a case made of an insulator;

[0027] A branch busbar installed at the upper end of the lifting / lowering member within the above case, with both ends protruding from the case and connected to an auxiliary circuit breaker;

[0028] A power bridge having one end closely connected to the lower end of the lifting / lowering member to form a first contact portion so as to be short-circuited with the main busbar according to the lifting / lowering operation of the lifting / lowering member, and the other end connected to the lower surface of one side of the branch busbar to form a second contact portion;

[0029] It is characterized by including a cover that is installed on the upper part of the above case and slides to open and close the switch.

[0030] The branch power separation device (10) of the present invention configured in this manner is installed on a busbar (27) that applies power to each line.

[0031] The above branch power separation device (10) is installed on the upper surface of the main busbar (27), and the ends of the branch busbar (15) protruding from both sides of the case (11) are each connected to the connection part of the auxiliary circuit breaker (32), and the auxiliary circuit breaker (32) is fixed to the board of the distribution board (30) by a screw or a fixing means.

[0032] At this time, the case (11) installed on the upper surface of the main busbar (27) can be fixed to the board of the distribution board (30) by a fixing device if necessary.

[0033] The above branch power separation device (10) is installed such that when installed on the upper surface of the main busbar (27), the first contact part (21) of the power bridge (19), which corresponds to the lower part of the lifting / lowering member (16) protruding from the lower surface of the case (11), is short-circuited with the main busbar (27).

[0034] The first contact portion (21) and the second contact portion (22) of the power bridge (19) are made of a metal plate that is a conductor, and a bolt hole is formed in the metal plate so that the lifting / lowering member (16) and the branch line busbar (15) can be joined by bolt fastening, riveting, or welding.

[0035] In addition, both ends of the braided wire (20) of the power bridge (19) are made of metal pieces made of a conductor, and bolt holes are formed in the metal pieces at both ends of the braided wire (20), so that the first contact part (21) is fastened with a bolt and the second contact part (22) can be connected by riveting.

[0036] In addition, the connection between the lower end of the lifting / lowering member (16) constituting the first contact part (21) and the metal piece at one end of the braided wire (20) can be made by welding.

[0037] FIG. 3 is an example diagram showing a state in which the first contact part is pressed to apply power ("on") by pressing the switch of the branch power separation device of the present invention and the power is applied ("on"). When the switch is pressed to apply power ("on"), the switch (11) is pressed around the hinge part (13), and at the same time, the lifting / lowering member (16) connected to the connecting shaft (14) descends, and the first contact part (21) of the power bridge (19) corresponding to the lower part descends and comes into contact with the upper surface of the busbar (27).

[0038] At this time, power flowing through the main busbar (27) is applied to the branch busbar (15) connected to the second contact (22) of the power bridge (19), and power is supplied through the auxiliary circuit breaker (32).

[0039] FIG. 4 is an example diagram showing a state in which the power is cut off ("off") by pulling the switch (12) of the branch power separation device (10) of the present invention, so that the first contact part (21) is separated from the main busbar (27). When one of the auxiliary circuit breakers (32) installed in the distribution board (30) is replaced due to a defect, the power can be cut off by lifting the switch (12) of the branch power separation device (10) installed on the main busbar (27) of the line of the auxiliary circuit breaker (32) to be replaced, thereby creating a separated state.

[0040] To specifically describe the state in which the power is cut off by lifting the switch (12) of the branch power separation device (10), when replacing a faulty auxiliary circuit breaker (32), the switch (12) of the branch power separation device (10) installed on the main busbar (27) of the corresponding line is lifted, and the connecting shaft (14) is pulled around the hinge part (13), and at the same time the lifting / lowering member (16) is lifted, and the first contact part (21) in close contact with the upper surface of the main busbar (27) is separated, thereby cutting off the power supply.

[0041] In this way, by using the branch power separation device (10) to cut off the power of the corresponding line, the auxiliary circuit breaker (32) to be replaced can be replaced without electric shock without cutting off the power of the entire distribution board.

[0042] In addition, the branch power separation device (10) of the present invention has a cover (25) installed on its upper surface to allow the switch (12), which is installed to be exposed on the upper surface of the case (11), to be closed and opened.

[0043] That is, when the switch is pressed, the first contact part (21) at the bottom of the lifting / lowering member (16) is in close contact with the main busbar (27), and at this time, when power is flowing to the branch busbar (15) through the power bridge (19), the cover (25) is covering the switch (12), and since the elongated hole (26) of the cover (25) is in a position that does not coincide with the switch (12), the switch (12) cannot be operated.

[0044] In addition, when the power of the branch power separation device (10) is to be cut off, the cover (25) is slid so that the elongated hole (26) aligns with the switch (12), thereby exposing the switch (12) so that the operator can lift the switch (12) with their finger to cut off the power.

[0045] In this way, the branch power separation device (10) of the present invention is configured such that when power is supplied normally and there is no need to replace the auxiliary circuit breaker (32), the cover (25) is closed so that the switch (12) cannot be operated arbitrarily, and when power is to be cut off, the cover is slid so that the elongated hole (26) is aligned with the switch (12) and the switch (12) is opened so that it can be lifted, thereby preventing safety accidents.

[0046] The above power bridge (19) is connected between the first contact part (21) and the second contact part (22) by a braided wire (20) made of a conductor, and the braided wire (20) has a fuse function by being cut when a current greater than a predetermined current (A) flows.

[0047] In addition, a through hole (17) is formed in the branch busbar (15) that distributes power from the main busbar (27), so that the lifting / lowering member (16) can pass through and be raised / lowered.

[0048] FIG. 5 is a cross-sectional view showing the lifting / lowering member of the present invention, wherein the head portion of the lifting member (16) forms a "U" shaped groove so that the lower portion of the switch (12) is fitted therein, and then connected with an axle pin to form a connecting shaft (14).

[0049] The above connecting shaft (14) acts to pull the lifting member (16) when the switch (12) is pulled up, and acts to lower the lifting member (16) by pressing the switch (12).

[0050] The body shape of the above-mentioned lifting / lowering member (16) can be circular, square, elliptical, polygonal, etc.

[0051] Additionally, a spring-shaped elastic member may be installed on the connecting shaft (14) of the switch (12) as needed to support the lifting and lowering member.

[0052] FIG. 6 shows that the branch power separation device according to the present invention has branch busbars installed on the R phase, S phase, T phase, and N phase respectively on the 4P busbar.

[0053] The case (11) of the above branch power separation device (10) is made of an insulator and is divided into multiple partitions inside, and the internal structure is formed in the form of FIG. 6 according to the location where the R phase, S phase, T phase, and N phase of the 4P busbar are installed.

[0054] At this time, the partition section that divides the inside of the case (11) through which the power bridge (19) passes is cut so that the power bridge (19) is positioned.

[0055] FIG. 7 is an exemplary diagram showing the state in which the branch power separation device (10) of the present invention is installed on the busbar (27) of the distribution board, and illustrates the internal arrangement configuration of the distribution board (30) as an example.

[0056] In addition, the arrangement configuration of the busbar (27), main circuit breaker (31), and auxiliary circuit breaker (32) installed in the distribution board (30) illustrated in FIG. 7 can be installed in various arrangements.

[0057] The branch power separation device (10) of the present invention, illustrated by a dashed line in FIG. 7, is installed on the main power busbar (27) supplied to each auxiliary circuit breaker (32).

[0058] The present invention, as described above, allows for the installation of a branch power separation device having a branch busbar on a main busbar connected to a main circuit breaker of a distribution panel installed for industrial or household use, thereby enabling the power supplied from the main busbar to the branch busbar to be short-circuited when necessary using the branch power separation device. This allows for the replacement of any one of the multiple circuit breakers in an operating distribution panel without cutting off the main power of the main circuit breaker, by pulling the switch of the branch power separation device installed on the main busbar of the corresponding line to cut off the power, thereby preventing electric shock accidents and ensuring efficient facility management of the distribution panel and preventing safety accidents during replacement, as the entire power supply is not cut off.

[0059] Although the present invention as described above has been explained with reference to the drawings of preferred embodiments, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0060] Therefore, the present invention allows for various changes and modifications within the spirit and scope of the patent claims claimed as the essence of the rights, and it is natural that simple design changes fall within the scope of the rights of the present invention. Explanation of the symbols

[0062] 10: Branch power supply device 11: Case 12: Switch 13: Hinge part 14: Connecting shaft 15: Branch line busbar 16: Ascent / Descent Member 17: Through Hole 19: Power Bridge 20: Braided Line 21: First contact part 22: Second contact part 25: Cover 26: Long hole 27: Busbar 30: Distribution panel 31: Main circuit breaker 32: Auxiliary circuit breaker

Claims

Claim 1 A branch power separation device for a busbar of a distribution board, comprising: a lifting / lowering member that moves up and down according to the "closed" or "open" of a switch installed on the upper surface of a case made of an insulator; a branch line busbar installed at the upper end of the lifting / lowering member inside the case, with both ends protruding from the case and connected to an auxiliary circuit breaker; a power bridge having one end in close contact with the lower end of the lifting / lowering member to form a first contact portion so as to short-circuit the busbar according to the lifting / lowering operation of the lifting / lowering member, and the other end connected to the lower surface of one side of the branch line busbar to form a second contact portion; and a cover installed on the upper part of the case that slides to open and close the exposure of the switch, wherein the power bridge is connected between the first contact portion and the second contact portion by a braided wire made of a conductor, and the braided wire is cut when a current exceeding a predetermined current (A) flows, thereby having a fuse function. Claim 2 delete Claim 3 A branch power separation device for a busbar for a distribution board, characterized in that, in claim 1, the power bridge is composed of a first contact portion and a second contact portion made of a metal piece that is a conductor, and a bolt hole is formed in the metal piece to connect a lifting / lowering member and a branch busbar by any one of bolt fastening, riveting, or welding. Claim 4 A branch power separation device for a busbar for a distribution board according to claim 1, characterized in that the switch has a hinge shaft formed so that one end is fitted into a case with an axle pin and can be pulled upward and pressed, and the lower end of the switch includes a connecting shaft connected to the upper end of a lifting / lowering member. Claim 5 A branch power separation device for a busbar for a distribution board according to claim 1, characterized in that the cover installed on the upper part of the case forms an elongated hole sized to expose the switch, so that when power is applied, the switch is closed by the cover, and when power is cut off, the cover is slid open so that the elongated hole aligns with the switch, allowing the switch to be pulled.

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