KR102560928B1 - Distributing board with improved combination of bus bar and circuit breaker - Google Patents

Abstract

The present invention relates to a distribution board having an improved busbar and circuit breaker combination method. The distribution board comprises: a main body (100); a main busbar (200); a sub busbar (300); a connecting conductor (400); and a bus bar coupling means (500).

Description

Distributing board with improved combination of bus bar and circuit breaker {Distributing board with improved combination of bus bar and circuit breaker}

The present invention relates to a distribution board, and more particularly, through a connecting conductor and a rivet-type bus bar coupling means, a bus bar bending operation is not required, the structure and shape are simplified, and the number of parts is reduced to increase the assembly productivity of the distribution board. An improved bus bar and circuit breaker coupling method that prevents loosening of the coupling part from vibration and enables easy adjustment of the combined height of the main circuit breaker and a plurality of branch circuit breakers or the separation distance from the protective cover through a height adjusting means. It is about the distribution board with

In general, switchboards and distribution boards are electrical facilities that safely supply industrial power to users.

These switchboards and switchboards are installed in power plants, substations, or buildings with electrical facilities to selectively supply power while distributing power, to monitor and control the electrical system, and to prevent safety accidents due to exposed lines. For this purpose, devices including various circuit breakers, switches, and bus bars (or bus bars) are located between main lines and branch circuits and mounted in an enclosure (or distribution panel body). The devices are coupled to a plate-shaped plate coupled within the enclosure.

The various circuit breakers are composed of a main circuit breaker and a plurality of branch circuit breakers. Most of the main circuit breakers use molded case circuit breakers (MCCB), and most of the branch circuit breakers are Earth Leakage Breakers (ELB). is mainly used

In addition, a bus bar is used for supplying and distributing power between the main circuit breaker and a plurality of branch circuit breakers, and may be manufactured through processes such as cutting, bending, and coating for this purpose. In the main circuit breaker, main bus bars are disposed in the front and rear directions, and a plurality of sub bus bars are spaced apart from each other by a predetermined distance in the left and right directions orthogonal to the main bus bars above the main bus bars. and are placed

For coupling between the main bus bar and the sub bus bar, as shown in FIG. 1, the sub bus bar 20 is bent and a bolt 30 and a nut are used to attach the sub bus bar above the main bus bar 10. A method of fixing and combining the unbent part of the bar is used, but there is a problem in that the assembly productivity of the distribution board is lowered due to the bending and bolt/nut fastening method. That is, it is inconvenient to perform bolt/nut fastening work after bending each sub-busbar considering the line spacing of the main busbar in advance. Or there is a problem that needs to be replaced with a new bus bar.

In addition, the bolt/nut fastening method between the bus bars has a problem in that a defective electrical contact state occurs as the bolt/nut loosens due to transmission of vibration. That is, in the case of a distribution board installed in an industrial site, when vibration of a large industrial device or vibration caused by an earthquake is transmitted, there is a problem in that the fastening state of bolts/nuts becomes loose or loosened, which may cause economic loss in the industrial site.

In order to solve this problem, Korean Patent Registration No. 10-0820911 (2008. 04. 11), as shown in FIG. It consists of a bridge 60 and a clipper 70 for fixing the stepped bridge to the lower bus bar, and the stepped bridge 60 is fixed to the upper bus bar 40 with screws 50 and the clipper 70 ) has been proposed a busbar fastening device characterized in that the lower busbar 10 and the stepped bridge are pressed and fixed with screws 55.

However, since the proposed technology uses the structure of the coupler composed of the stepped bridge 60 and the clipper 70 to bind the busbars, the structure and shape are complicated and the manufacturing cost is high because it consists of a large number of parts. In addition, there is a problem that the initial installation cost and maintenance cost for repairing or replacing the busbar increase due to excessive labor for assembling the busbar, and since the screw fastening method is still used, the problem of being vulnerable to vibration is still Remains.

Meanwhile, various circuit breakers mounted on switchboards and distribution boards are coupled to plate-shaped plates. Since these various circuit breakers have differences in height for each product, they are installed with the same type of circuit breaker or coupled to the plate through a bracket attached to the distribution box or a bracket provided by each manufacturer, which is easy without bending the bus bar. in order to be fitted

However, when replacement is required due to the circuit breaker replacement cycle, a difference in height occurs when replacing a circuit breaker of another product, which inevitably causes the inconvenience of bending a bus bar or replacing a plate at the site, resulting in poor work efficiency. There is a problem. In addition, when a protective cover is coupled to the front of the circuit breaker, when replacing with a circuit breaker of another product, the separation distance between the circuit breaker and the protective cover is different, resulting in problems in that the protective cover cannot be combined or the switch of the circuit breaker cannot be operated. There is a need to improve this.

The object of the present invention, which was made to solve the above problems, is to use a bus bar coupling means of a connecting conductor and a rivet method, so that a bus bar bending operation is not required, the structure and shape are simplified, and the number of parts is reduced to reduce the number of parts. An improved bus bar and circuit breaker that increases assembly productivity, prevents loosening of coupling parts from vibration, and easily adjusts the combined height of the main circuit breaker and multiple branch circuit breakers or the separation distance from the protective cover through a height adjusting means It is to provide a distribution panel having a coupling method of.

According to the features of the present invention for achieving the above object, in the distribution board, the door 110 that can be opened and closed is coupled to the front, and an empty space is provided inside the main circuit breaker 10 and a plurality of branch circuit breakers 20 The main body 100 is disposed; a main busbar (200) coupled to the main circuit breaker, arranged at regular intervals, and having a plurality of first coupling holes (210) penetrating in the longitudinal direction; Coupled to each of the branch breakers, spaced apart at a certain height above the main bus bar 200, a plurality of them are arranged at regular intervals in the vertical direction, and each of the first coupling holes 210 of the main bus bar a sub busbar 300 through which a plurality of second coupling holes 310 communicating are formed; It is coupled to a part requiring electrical connection between the main bus bar 200 and the sub bus bar 300 spaced apart in the vertical direction, and the first coupling hole 210 and the second coupling hole 310 and a connection conductor 400 having a hollow part 410 penetrating in the vertical direction so as to be in communication therewith; A pin 510 having a certain length and formed on one side of the pin 510 to be coupled to the first coupling hole 210, the second coupling hole 310, and the hollow portion 410 communicating with each other, the Consisting of a head 520 larger than the diameter of the pin 510, riveting in a state coupled to the first coupling hole 210, the second coupling hole 310, and the hollow portion 410 Improved characterized in that it comprises a bus bar coupling means 500 that is fixed to the hole through a tool or press crimping so that the main bus bar 200, the sub bus bar 300 and the connecting conductor 400 are coupled to each other A distribution panel having a coupling method of a bus bar and a circuit breaker is provided.

In addition, each of the first coupling hole 210 and the second coupling hole 310 has an inner diameter larger than the outer diameter of the pin 510 of the bus bar coupling means 500, and the bus bar coupling means 500 It is characterized in that the insulators 220 and 320 are coated on the inner circumferential surface and the portion in contact with the end of the head 520 and the pin 510, respectively.

In addition, the connection conductor 400 has irregularities formed on the upper and lower surfaces, respectively, to increase the contact area between the main bus bar 200 and the sub bus bar 300 and to prevent slip, It is characterized in that oblique or grid-like knurling is processed.

In addition, the connection conductor 400 is located between the first conductor 420a located above the main bus bar 200 and the first conductor 420a and the sub bus bar 300, and the first conductor 420a It is characterized in that it includes a second conductor (420b) whose height is adjusted according to the tightening and loosening operation by being screwed with the first conductor (420a).

In addition, the bus bar coupling means 500 is characterized by being a rivet in which the end and head 520 of the pin 510 are deformed through a riveting tool or press compression.

In addition, the bus bar coupling means 500 is characterized in that any one of a tubular rivet, a split rivet, a compression rivet, and a blind rivet is selected and used do.

In addition, the body 100 is characterized in that the protective cover 120 is coupled to the front of the main circuit breaker 10, the plurality of branch circuit breakers 20, the main bus bar 200 and the sub bus bar 300 to be

In addition, each of the main circuit breaker 10 and the plurality of branch circuit breakers 20 can be adjusted so that the height of each connection between the main circuit breaker 10 and the plurality of branch circuit breakers 20 or the separation distance from the protective cover 120 can be adjusted. It is characterized in that it further comprises a height adjustment means (600) coupled to.

In addition, the height adjusting means 600 includes a main body coupling part 610 detachably coupled to at least one of the plate 30 or the protective cover 120 of the main body 100, and the main circuit breaker 10 ) Or a circuit breaker coupling part 620 detachably coupled to a plurality of branch circuit breakers 20, coupled between the body coupling part 610 and the circuit breaker coupling part 620, the main circuit breaker 10 and It is characterized in that it includes a height adjusting unit 630 whose height is adjusted so that the coupling height of each branch circuit breaker 20 can be adjusted.

In addition, the height adjustment unit 630 has one side coupled to the main body coupling portion 610, the fixed body 631, one side coupled to the other side of the fixed body 631, and the other side coupled to the circuit breaker coupling portion 620. ), characterized in that it includes a movable body 632 that moves in the vertical direction along with the circuit breaker coupling part 620 according to the user's manipulation.

In addition, the fixed body 631 is formed through a plurality of first height adjustment holes 633a arranged in the vertical direction, and the moving body 632 has the first height adjustment holes 633a according to the moving height. A second height adjustment hole 633b communicating with any one of them is formed through, and the first height adjustment hole 633a and the second height adjustment hole 633b have a fastening member 640 including a bolt and a nut. It is characterized in that is combined.

In addition, the stationary body 631 is formed through a slot hole 634a extending long in the vertical direction, and the movable body 632 has a height adjustment hole 634b communicating with a certain area of the slot hole 634a. ) is formed through, and a fastening member 640 including a bolt and a nut is coupled to the slot hole 634a and the height adjustment hole 634b.

In addition, the stationary body 631 is connected to a pinion gear 635a rotatably coupled to the inside and a rotational axis of the pinion gear 635a to protrude out of the case 636, and has a + shape or -Including a control groove 637 formed with a self-shaped or hexagonal groove, and the movable body 632 has a rack gear (635b) meshing with the pinion gear 635a coupled to the inside in the vertical direction to be characterized

In addition, in the stationary body 631, a plurality of intermittent holes 638 are formed in each of the pinion gear 635a and the case to regulate the rotation of the pinion gear 635a, and any one of the intermittent holes 638 Characterized in that it further comprises an intermittent pin 639 fitted to one or more.

The distribution panel having the improved coupling method of the bus bar and the circuit breaker according to the present invention,

First, through the connecting conductor and rivet-type bus bar coupling means, there is no need for bus bar bending work, the structure and shape are simplified, and the number of parts is reduced to increase the assembly productivity of the distribution board and prevent the coupling part from loosening from vibration. There are possible effects.

Second, by easily adjusting the combined height of the main circuit breaker and the plurality of branch circuit breakers or the separation distance from the protective cover through the height adjusting means, there is an effect that even circuit breakers having different heights for each manufacturer can be installed and replaced.

1 is a view showing a method of coupling a main bus bar and a sub bus bar of a distribution board according to the prior art;
Figure 2 is a view showing a busbar fastening device according to the prior art
3 is a side cross-sectional view schematically showing the overall configuration of an embodiment of a distribution board having an improved coupling method of a bus bar and a circuit breaker according to the present invention;
4 is a view showing the inside of a distribution board viewed from the front, based on the embodiment of FIG. 3;
FIG. 5 is a view showing one embodiment of a coupling section of a main bus bar, a sub bus bar, and a connecting conductor through a bus bar coupling means among the embodiments of FIG. 3;
6 is a view showing another embodiment of a coupling cross section of a main bus bar, a sub bus bar, and a connecting conductor through a bus bar coupling means in the embodiment of FIG. 3;
FIG. 7 is a view showing another embodiment of a coupling section of a main bus bar, a sub bus bar, and a connecting conductor through a bus bar coupling means in the embodiment of FIG. 3;
8 is a side cross-sectional view schematically showing the overall configuration of another embodiment of a distribution board having an improved coupling method of a bus bar and a circuit breaker according to the present invention;
Figure 9 is a view showing a state in which the height adjustment means of the embodiment of Figure 8 is coupled to the protective cover
10 is a cross-sectional view of an embodiment of a height adjusting means among the embodiments of FIGS. 8 and 9;
11 is a cross-sectional view of another embodiment of a height adjusting means among the embodiments of FIGS. 8 and 9;
12 is a cross-sectional view of another embodiment of a height adjusting means among the embodiments of FIGS. 8 and 9;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings, and even if the same numerals as in the prior art are indicated The prior art should be interpreted as such. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

A distribution board having an improved coupling method of a bus bar and a circuit breaker according to the present invention, as an embodiment, as shown in FIGS. sub busbar, 300), a connection conductor 400, and a bus bar coupling means 500, and may further include a height adjusting means 600 as shown in FIGS. 8 to 12 as another embodiment.

As shown in FIG. 3, the main body 100 is coupled with a door 110 that can be opened and closed at the front, and an empty space is provided inside the main circuit breaker 10 and a plurality of branch circuit breakers 20 are disposed.

Here, the main body 100 may correspond to both a recessed type and a semi-buried type in which all or part of the side surface is embedded in the wall of a building, and an exposed type directly fixed to the wall or floor surface through anchor bolts or the like. . To this end, fastening means including fastening holes and anchor bolts may be provided at the rear or lower side of the main body 100 to be fixedly installed on a wall or floor.

In addition, the main circuit breaker 10 is mostly a molded case circuit breaker (MCCB). The molded case circuit breaker is a circuit breaker with overload and short circuit protection, and is housed in a molded case and has a low voltage of AC 600V or less or DC 750V or less. It is used for protection of indoor voltage and is also called by the name of NFB. Since it is compact, safe to operate, and requires no effort such as inserting a fuse, it is widely used instead of a conventional combination of a knife switch and a fuse. A main busbar 200 to be described later is coupled.

In addition, most of the branch circuit breaker 20 is an Earth Leakage Breaker (ELB), which is used to prevent electric shock when a leakage accident occurs inside the device or when contacting an external box or frame. It is a power cut-off switch of a branch circuit that cuts off the line when an abnormality occurs in a line in a normal state. A sub busbar 300 to be described later is coupled.

Each of the main circuit breaker 10 and the plurality of branch circuit breakers 20 is installed on a bracket 40 coupled to a plate 30 coupled to the main body 100 to a certain height from the plate. Can be installed remotely.

As shown in FIGS. 3 to 5, the main busbar 200 is coupled to the main circuit breaker, and a plurality of them are arranged at regular intervals, and a plurality of first coupling holes 210 penetrate in the longitudinal direction. is formed

As shown in FIGS. 3 to 5, sub busbars 300 are coupled to each of the branch circuit breakers, and are spaced apart at a certain height above the main bus bar 200, and a plurality of sub busbars 300 are spaced at regular intervals in the vertical direction. , and a plurality of second coupling holes 310 communicating with each of the first coupling holes 210 of the main bus bar are formed through.

Here, each of the main busbar (200) and the sub busbar (300) is a rod-shaped conductor that enables electrical connection, and copper (Cu) is mainly used, and requires electrical connection to each other. Parts except for the parts to be covered with an insulator to prevent electrical safety accidents and poor electrical contact. In FIG. 4, the surface of the portion coated with the insulator is indicated in black. Also, an end of the main bus bar may be coupled to a bracket 40 coupled to a plate 30.

On the other hand, each of the first coupling hole 210 of the main busbar 200 and the second coupling hole 310 of the sub busbar 300 is of the bus bar coupling means 500 to be described later. It has an inner diameter larger than the outer diameter of the pin 510, but as another embodiment, as shown in FIG. 6, the head 520 of the bus bar coupling means 500 and the end portion of the pin 510 and the inner circumferential surface are in contact with each other. Insulators 220 and 320 may be coated. Here, as the insulator, a soft rubber or synthetic resin material is used to provide electrical insulation and a buffering effect.

The reason for configuring the insulators 220 and 320, respectively, is that in the case of a distribution board installed at an industrial site, vibration of large industrial equipment can be transmitted to the inside of the distribution board, and vibration caused by an earthquake can also be transmitted. ) and the bus bar coupling means 500, in order to fundamentally prevent sparks from occurring at the contact portion, there is an effect of buffering by using a soft material together with electrical insulation.

As shown in FIGS. 3 to 7, the connection conductor 400 is coupled to a part requiring electrical connection between the main bus bar 200 and the sub bus bar 300 spaced apart in the vertical direction, A hollow part 410 passing through in the vertical direction is formed to communicate with the first coupling hole 210 and the second coupling hole 310 .

For example, the connecting conductor 400 may be manufactured in a square or circular pipe shape, and in FIG. 4, the circular connecting conductor 400 coupled between the main bus bar 200 and the sub bus bar 300 is indicated by a dotted line.

The reason for configuring the connection conductor 400 is that, as described in the background art, the bus bar coupling method of the distribution board according to the prior art uses a bending and bolt/nut fastening method, but this has a problem in that the assembly productivity of the distribution board is low. to improve this That is, it is inconvenient to perform the bending work for each sub-busbar individually in consideration of the line spacing of the main busbar and the part requiring electrical contact in advance, and the bending work is performed again at the site due to a design error in the bending position. Or there is a problem that needs to be replaced with a new bus bar.

In other words, the connection conductor 400 is to improve the problem caused by the bending operation in the bus bar coupling method of the distribution board according to the prior art, and the connection conductor 400 is connected to the main bus bar 200 and the sub bus bar. By coupling to the part requiring electrical connection between (300), there is no need to perform a separate bending operation.

Specifically, the electrical connection of the main bus bar 200 and the sub bus bar 300 through the connection conductor 400 is first, a plurality of main bus bars 200 and The connection conductor 400 is inserted between the main bus bar 200 and the sub bus bar 300 in the part requiring electrical connection among the sub bus bars 300 to form the first coupling hole 210 and the second coupling hole 210. After connecting the coupling hole 310 and the hollow portion 410 to each other, the main bus bar 200, the sub bus bar 300, and the connecting conductor 400 are easily connected through a bus bar coupling means 500 to be described later. can be combined

Here, the connection conductor 400 has irregularities formed on its upper and lower surfaces, respectively, to increase the contact area between the main bus bar 200 and the sub bus bar 300 and to prevent slip, or have a diagonal or Lattice-like knurling can be machined. Knurling is a method in which the outer surface of a cylindrical workpiece is jagged in a horizontal and vertical straight, oblique or lattice shape to increase frictional force and prevent slippage in the field of machining. In the present invention, the main bus bar In order to increase the contact area between the 200 and the sub-bus bar 300 and prevent slip, slip can be fundamentally prevented when coupling with the bus bar or when an external force such as vibration is transmitted. There is an effect.

Meanwhile, as another embodiment, as shown in FIG. 7, the connection conductor 400 includes a first conductor 420a located above the main bus bar 200, the first conductor 420a and the sub bus It may include a second conductor 420b positioned between the bars 300 and screwed to the first conductor 420a, the height of which is adjusted according to tightening and loosening operations.

The reason for configuring the first conductor 420a and the second conductor 420b is to adjust the height of the connection conductor 400 corresponding to the height between the main bus bar 200 and the sub bus bar 300. As a result, even if the height between the main bus bar 200 and the sub bus bar 300 changes due to the replacement of the circuit breaker, the bending work of the bus bar can be omitted and the height of the connection conductor can be adjusted as in the prior art, thereby increasing work efficiency. has the effect of increasing

For example, an external thread may be formed on an outer circumferential surface of the first conductor 420a, and an internal thread may be formed on an inner circumferential surface of the second conductor 420b to engage with the external thread.

As shown in FIGS. 3 to 7, the bus bar coupling means 500 is a pin having a certain length to be coupled to the first coupling hole 210, the second coupling hole 310, and the hollow portion 410 communicating with each other. (pin, 510) and a head (head, 520) formed on one side of the pin 510 and having a diameter larger than the diameter of the pin 510, and the first coupling hole 210 and the second coupling hole 310 ) And the hollow part 410 is fixed to the hole through a riveting tool or press compression so that the main bus bar 200, the sub bus bar 300 and the connecting conductor 400 are coupled to each other is a means

To this end, the bus bar coupling means 500 may use a riveting tool or a rivet in which the end and head 520 of the pin 510 are deformed through press compression.

Here, a rivet is a type of fastening component. When joining materials in the form of a metal plate, a hole is drilled, a rivet is inserted into the hole, and then the part protruding from the opposite side of the head or both sides is subjected to impact to bend or unfold the joint. . Depending on the shape of the head, there are round head rivets, countersunk head rivets, flat head rivets, round countersunk head rivets, pan head rivets, and thin flat head rivets. The length is 1.3 to 1.6 times the diameter depending on the thickness of the plate to be fastened, and the rivet hole is about 1mm larger than the rivet diameter. It works mainly by heating rivets, but when driving small rivets, it is sometimes done at room temperature without heating.

The reason why rivets are used in the bus bar coupling means 500 is that, as described in the background art, the bus bar coupling method of the distribution board according to the prior art uses a bending and bolt/nut fastening method, but this is the assembly of the distribution board. There was a problem of low productivity. That is, it is inconvenient to perform bolt/nut fastening work after bending each sub busbar considering the line spacing of the main busbar in advance, and the bolt/nut fastening method between busbars is bolted due to transmission of vibration / There is also a problem that a defective electrical contact occurs when the nut is loosened.

In other words, in the case of distribution panels installed in industrial sites, when vibrations from large industrial equipment or vibrations caused by earthquakes are transmitted, bolts/nuts become loose or loose, which can cause economic losses at industrial sites. . In addition, a busbar fastening device has been proposed as an alternative to the bolt/nut fastening method, but the structure and shape are complex and consist of a large number of parts, so the manufacturing cost is high and the assembly time of the busbar is excessive, so the initial installation There is a problem in that the cost and maintenance cost for repairing or replacing the busbar increases, and since the method of fastening with screws is still used, the problem of being vulnerable to vibration still remains.

In order to solve the problem of the bus bar coupling method of the distribution panel according to the prior art, it is a semi-permanent fastening method that can work even if one side is not visible in the working direction in one direction instead of both sides. There is no loosening phenomenon due to vibration, and unlike bolts/nuts, it is a fast and simple work method that can be joined simply by drilling a basic hole in the product to be joined, so it can increase work efficiency compared to bolt/nut fastening and welding methods. It is the use of rivets that have an advantage.

For example, as the bus bar coupling means 500, any one of a tubular rivet, a split rivet, a compression rivet, and a blind rivet may be selected and used.

A tubular rivet is a rivet with a hole in the pin part of the rivet, a split rivet is a rivet with a hole in the pin part and a split end, and a compression rivet is a rivet with a hole in the pin part and a split end. A pair of rivets that are joined by inserting rivets in the pin direction, respectively. A blind rivet is a special rivet used in places where only one side of metal needs to be worked or in a sheet metal structure where a support cannot be used. ) using tools such as

The tubular rivet, split rivet, compression rivet, and blind rivet are deformed by compressing the end of the pin 510 through a riveting tool or press compression. or press and deform both ends of the pin 510 and the head 520 so as to be fixedly coupled to the first coupling hole 210, the second coupling hole 310, and the hollow portion 410.

On the other hand, as another embodiment of a distribution panel having an improved bus bar and circuit breaker coupling method according to the present invention, as shown in FIGS. 8 to 12, a height adjusting means 600 is further included, and the main body 100 is A protective cover 120 may be coupled to the front of the main circuit breaker 10 , the plurality of branch circuit breakers 20 , the main bus bar 200 and the sub bus bar 300 .

Here, the protective cover 120 prevents each of the main circuit breaker 10, the plurality of branch circuit breakers 20, the main bus bar 200, and the sub bus bar 300 from being exposed to the outside, thereby protecting electric devices. It is configured to prevent an electric shock accident, and the switch portion can be opened and formed as a transparent window so that the switch operation of the main circuit breaker 10 and the plurality of branch circuit breakers 20 is possible.

The height adjusting means 600 is the main circuit breaker 10 and the plurality of branch circuit breakers 20, each coupling height or the separation distance from the protective cover 120 can be adjusted. It is a means coupled to each circuit breaker 20.

The reason for configuring the height adjusting means 600 is that, as described above in the background art, the coupling method of various circuit breakers configured in the distribution board according to the prior art is coupled to a plate-shaped plate. Since there is a difference, it is installed with the same type of circuit breaker at the time of installation or coupled to the plate 30 through the bracket 40 attached to the distribution box or the bracket provided by each circuit breaker manufacturer as shown in FIG. This was to ensure that the bus bar was easily mounted without bending. When replacement is required due to the circuit breaker replacement cycle, when replacing a circuit breaker of another product, there is a difference in height, which inevitably causes the inconvenience of bending the bus bar or replacing the plate at the site, which reduces work efficiency. there is. In addition, when a protective cover is coupled to the front of the circuit breaker, there is a problem in that the protective cover cannot be coupled or the switch of the circuit breaker cannot be operated due to a change in the separation distance between the circuit breaker and the protective cover when replacing with a circuit breaker of a different product. That is, there is a problem in that the protective cover cannot be coupled when the protective cover contacts the circuit breaker because it is shorter than the proper distance, and the user cannot operate the switch when the switch is not exposed because the distance is longer than the proper distance. there is.

In order to solve the problem of the circuit breaker coupling method of the distribution panel according to the prior art, the combined height of the main circuit breaker and a plurality of branch circuit breakers or the separation distance from the protective cover can be easily adjusted to install and replace circuit breakers having height differences between manufacturers. The height adjustment means is configured so that the possible effect is achieved.

To this end, the height adjusting means 600 includes a main body coupling part 610 detachably coupled to at least one of the plate 30 or the protective cover 120 of the main body 100, the main circuit breaker 10 or The circuit breaker coupling part 620 detachably coupled to the plurality of branch circuit breakers 20 and the main circuit breaker 10 and the plurality of branch circuit breakers 10 are coupled between the body coupling part 610 and the circuit breaker coupling part 620. It consists of a height adjustment unit 630 whose height is adjusted so that the height of each coupling of the circuit breaker 20 can be adjusted.

For example, FIG. 8 is a view showing a state in which the main body coupling part 610 is coupled to the plate 30 of the main body 100, and FIG. 9 is a diagram showing a state in which it is coupled to the protective cover 120. , Depending on the size of the distribution board, the number and type of circuit breakers, it may be limited to the plate 30 or the protective cover 120 and be coupled to either one or to both the plate 30 and the protective cover 120.

Here, each of the body coupling portion 610 and the circuit breaker coupling portion 620 may be detachably coupled by bolts and nuts.

Specifically, the height adjustment unit 630 has one side coupled to the main body coupling portion 610, the fixed body 631, one side coupled to the other side of the fixed body 631, and the other side coupled to the circuit breaker coupling portion 620. ), and includes a movable body 632 that moves in the vertical direction along with the circuit breaker coupling part 620 according to the user's manipulation.

Here, examples of the fixed body 631 and the movable body 632 are as follows.

First, as an embodiment, as shown in FIG. 10, the fixed body 631 is formed through a plurality of first height adjustment holes 633a disposed in the vertical direction, and the moving body 632 is moved according to the moving height. A second height adjustment hole 633b communicating with any one of the first height adjustment holes 633a is formed through. Here, fastening members 640 including bolts and nuts are coupled to the first height adjustment hole 633a and the second height adjustment hole 633b. That is, in one embodiment, the movable body 632 is slidably coupled in the vertical direction from the fixed body 631, and the second height adjustment hole communicates with any one of the plurality of first height adjustment holes 633a. This is a method of fixing the height of the moving body 632 by fastening the fastening member 640 to (633b).

Next, as another embodiment, as shown in FIG. 11, the stationary body 631 is formed through a slot hole 634a extending long in the vertical direction, and the movable body 632 is formed through the slot hole 634a. A height adjustment hole 634b communicating with a certain area is formed through. Here, fastening members 640 including bolts and nuts are coupled to the slot hole 634a and the height adjustment hole 634b. That is, in another embodiment, the movable body 632 is coupled to be slidably movable in the vertical direction from the fixed body 631, and the fastening member ( 640) to fix the height of the moving body 632.

Finally, as another embodiment, as shown in FIG. 12, the stationary body 631 is connected to a pinion gear 635a rotatably coupled therein and a rotation shaft of the pinion gear 635a. It protrudes out of the case 636 and includes an operating groove 637 formed with a + shape, a - shape, or a hexagonal groove. In addition, a rack gear 635b meshing with the pinion gear 635a is coupled to the inside of the movable body 632 in a vertical direction. That is, in another embodiment, the movable body 632 is coupled to be slidably movable in the vertical direction from the fixed body 631, and the height of the movable body 632 is adjusted through a rack & pinion gear method. way to do it To this end, a tool such as a screwdriver or an allen wrench is inserted into the manipulation groove 637 and rotated so that the pinion gear 635a rotates together. Here, the manipulation groove 637 is not limited to +-shaped, -shaped, or hexagonal grooves, but may be formed in a star-shaped, triangular, or quadrangular shape, and can be manipulated with a wrench having the same end as the shape of the groove. .

In addition, in order to fix the adjusted height of the movable body, the fixed body 631 has a plurality of intermittent holes 638 formed in the pinion gear 635a and the case to regulate the rotation of the pinion gear 635a. , Further comprising an intermittent pin 639 fitted into any one or more of the intermittent holes 638.

Meanwhile, as shown in FIG. 8, the height adjusting means 600 is located at the end of the main bus bar 200 so that the height of the main bus bar 200 is adjusted according to the replacement of the main circuit breaker 10. can be configured. At this time, the circuit breaker coupling part 620 of the height adjusting means 600 is coupled to the main bus bar 200.

Therefore, the distribution panel having the improved coupling method of the bus bar and the circuit breaker according to the present invention, first, through the connecting conductor and the bus bar coupling means of the rivet method, does not require the bus bar bending work and simplifies the structure and shape, It has the effect of reducing the number of parts, increasing the assembly productivity of the distribution board, and preventing the coupling part from loosening from vibration.

Second, by easily adjusting the combined height of the main circuit breaker and the plurality of branch circuit breakers or the separation distance from the protective cover through the height adjusting means, there is an effect that even circuit breakers having different heights for each manufacturer can be installed and replaced.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10: main breaker 20: branch breaker
30: plate 40: bracket
100: distribution board body 110: door
120: protective cover
200: main busbar 210: first coupling hole
220, 320: insulator
300: sub busbar 310: second coupling hole
400: connecting conductor 410: hollow part
420a: first conductor 420b: second conductor
500: bus bar coupling means 510: pin
520: head
600: height adjustment means 610: body coupling part
620: circuit breaker coupling part 630: height adjustment part
640: fastening member

Claims (14)

In the division board,
A main body 100 in which a door 110 that can be opened and closed is coupled to the front, and an empty space is provided inside the main circuit breaker 10 and a plurality of branch circuit breakers 20 are disposed;
a main busbar (200) coupled to the main circuit breaker, arranged at regular intervals, and having a plurality of first coupling holes (210) penetrating in the longitudinal direction;
Coupled to each of the branch breakers, spaced apart at a certain height above the main bus bar 200, a plurality of them are arranged at regular intervals in the vertical direction, and each of the first coupling holes 210 of the main bus bar a sub busbar 300 through which a plurality of second coupling holes 310 communicating are formed;
It is coupled to a part requiring electrical connection between the main bus bar 200 and the sub bus bar 300 spaced apart in the vertical direction, and the first coupling hole 210 and the second coupling hole 310 and a connection conductor 400 formed with a hollow part 410 penetrating in the vertical direction so as to communicate with each other;
A pin 510 having a certain length and formed on one side of the pin 510 to be coupled to the first coupling hole 210, the second coupling hole 310, and the hollow portion 410 communicating with each other, the Consisting of a head 520 larger than the diameter of the pin 510, riveting in a state coupled to the first coupling hole 210, the second coupling hole 310, and the hollow portion 410 It includes a bus bar coupling means 500 for fixing the main bus bar 200, the sub bus bar 300, and the connecting conductor 400 to each other by fixing to the hole through a tool or press crimping,
Each of the first coupling hole 210 and the second coupling hole 310,
It has an inner diameter larger than the outer diameter of the pin 510 of the bus bar coupling means 500,
Insulators 220 and 320 are coated on the inner circumferential surface and the portion in contact with the ends of the head 520 and pin 510 of the bus bar coupling means 500, respectively,
The connection conductor 400,
A first conductor 420a located above the main bus bar 200;
A second conductor 420b positioned between the first conductor 420a and the sub bus bar 300 and screwed to the first conductor 420a to adjust its height according to a tightening and loosening operation,
The main body 100,
A protective cover 120 is coupled to the front of the main circuit breaker 10, the plurality of branch circuit breakers 20, the main bus bar 200 and the sub bus bar 300,
Combined with each of the main circuit breaker 10 and the plurality of branch circuit breakers 20 so as to be able to adjust the combined height of each of the main circuit breaker 10 and the plurality of branch circuit breakers 20 or the separation distance from the protective cover 120 A distribution panel having an improved coupling method of a bus bar and a circuit breaker, characterized in that it further comprises a height adjusting means (600).
delete According to claim 1,
The connection conductor 400,
In order to increase the contact area between the main bus bar 200 and the sub bus bar 300 and prevent slip, irregularities are formed on the upper and lower surfaces, respectively, or straight, diagonal or lattice knurling is formed. A distribution panel having a coupling method of an improved bus bar and a circuit breaker, characterized in that it is processed.
delete delete delete delete delete According to claim 1,
The height adjusting means 600,
A body coupling portion 610 detachably coupled to at least one of the plate 30 or the protective cover 120 of the body 100,
A circuit breaker coupling part 620 detachably coupled to the main circuit breaker 10 or the plurality of branch circuit breakers 20;
A height adjusting unit that is coupled between the main body coupling portion 610 and the circuit breaker coupling portion 620 and the height of which is adjusted so that the height of each of the main circuit breaker 10 and the plurality of branch circuit breakers 20 can be adjusted ( 630), a distribution panel having an improved coupling method of a bus bar and a circuit breaker.
According to claim 9,
The height adjustment unit 630,
A fixed body 631 having one side coupled to the main body coupling part 610;
One side is coupled to the other side of the fixed body 631 and the other side is coupled to the circuit breaker coupling part 620, and includes a moving body 632 that moves up and down with the circuit breaker coupling part 620 according to a user's operation. A distribution panel having an improved coupling method of a bus bar and a circuit breaker, characterized in that.
According to claim 10,
The fixture 631,
A plurality of first height adjustment holes 633a disposed in the vertical direction are formed through,
The moving body 632,
A second height adjustment hole 633b communicating with any one of the first height adjustment holes 633a according to the movement height is formed through,
In the first height adjustment hole 633a and the second height adjustment hole 633b,
A distribution panel having an improved coupling method of a bus bar and a circuit breaker, characterized in that fastening members 640 including bolts and nuts are coupled.
According to claim 10,
The fixture 631,
A slot hole 634a extending long in the vertical direction is formed through,
The moving body 632,
A height adjustment hole 634b communicating with a certain area of the slot hole 634a is formed through,
In the slot hole 634a and the height adjustment hole 634b,
A distribution panel having an improved coupling method of a bus bar and a circuit breaker, characterized in that fastening members 640 including bolts and nuts are coupled.
According to claim 10,
The fixture 631,
A pinion gear 635a rotatably coupled therein;
It is connected to the rotation shaft of the pinion gear 635a and protrudes out of the case 636, and includes a control groove 637 formed with a + shape, a - shape, or a hexagonal groove,
The moving body 632,
A distribution panel having an improved coupling method of a bus bar and a circuit breaker, characterized in that a rack gear (635b) meshing with the pinion gear (635a) is coupled inside in a vertical direction.
According to claim 13,
The fixture 631,
A plurality of intermittent holes 638 are formed in the pinion gear 635a and the case to regulate rotation of the pinion gear 635a,
A distribution board having an improved bus bar and circuit breaker coupling method, characterized in that it further comprises an intermittent pin 639 fitted into one or more of the intermittent holes 638.