KR20140046337A

KR20140046337A - Bus bar with convex structure of rectangular shape

Info

Publication number: KR20140046337A
Application number: KR1020120112665A
Authority: KR
Inventors: 김형두
Original assignee: 현대중공업 주식회사
Priority date: 2012-10-10
Filing date: 2012-10-10
Publication date: 2014-04-18

Abstract

The present invention relates to a bus bar with an uneven structure of a rectangular shape. In the bus bar with the uneven structure of the rectangular shape to cool a bus bar with a metal plate shape used for transmitting a current between corresponding distribution boxes by connecting two distribution boxes using air, an air cooling process is performed through the uneven part of the rectangular shape formed on the upper end of the bus bar. According to the bus bar with the uneven structure of the rectangular shape, the conductivity of the bus bar is improved and the overheat of the bus bar is prevented by reducing heat generated when the current flows in the bus bar by forming an air cooling path by forming the uneven part on the bus bar.

Description

BUS BAR WITH CONVEX STRUCTURE OF RECTANGULAR SHAPE}

The present invention relates to a bus bar having a rectangular concave-convex structure, and more particularly, to a bus bar having a rectangular concave-convex structure to lower the temperature of the bus bar by forming concavities and convexities on the bus bar.

In general, busbars refer to products of the shape of long metal plates that are used in place of power cables. These busbars have a wider flat plate shape than cables, and thus have a high heat dissipation effect and a large surface area. It can lower the impedance, which is more advantageous than high speed system with large current. In addition, the shield effect can be obtained through the installation of the laminate of the busbars, and the capacitance of the distribution constant can be obtained very high. As a result, the external noise blocking effect is excellent and a stable power source can be generated. It is widely applied to the internal distribution line configuration of power distribution facilities and motor control panels. Here, the amount of current flowing through the busbar is changed according to the load variation of the customer side or the motor, but the temperature of the busbar increases when the amount of current increases or excessive load current flows for a long time.

On the other hand, Korean Patent No. 10-0921963 relates to a bus bar for switchgear having an overheat protection function for detecting the temperature of the bus bar installed in the switchgear, the thermoelectric element when the temperature of the bus bar reaches a certain temperature (T1). A reference temperature setting unit for allowing a user to set whether to drive (PTC), a temperature detection sensor installed between the upper surface of the insulator and the bottom of the coupling portion of the busbar to detect the temperature of the busbar in real time, the temperature detection sensor A / D converter that converts the temperature of the busbar detected as an analog signal to a digital signal through the thermoelectric element if the temperature of the busbar input through the A / D converter is higher than the set temperature set by the user. A microcomputer for outputting a driving signal, and a timer for supplying a driving voltage to the PTC only for a predetermined time when the PTC driving signal is output from the microcomputer, PTC drive unit for controlling the drive of the thermoelectric element in response to the output signal of the microcomputer, and the cold air is generated on one surface and the heat generated on the other surface in accordance with the supply direction of the DC voltage and the bottom surface of the insulator and the insulator It is installed between the upper surface is driven in response to the output signal of the PTC drive unit is characterized in that it comprises a thermoelectric element (PTC) to prevent the overheating of the busbar by generating cold air through the insulator. According to the disclosed technology, a bus bar for a switchgear having a function of preventing overheating detects the temperature of a bus bar installed in the switchgear, and when the temperature of the bus bar rises above a predetermined temperature due to overload, between the bottom of the insulator and the top of the insulator fixture. Cools the busbar by driving the thermoelectric element (PTC) installed in the alarm box, but if the temperature of the busbar rises above the overheat temperature set by the user, despite the cooling of the busbar temperature through the thermoelectric element, an alarm sounds. Alternatively, by generating an alarm light, the efficiency of the busbar itself can be greatly improved.

However, when the high voltage current flows, the bus bar is overheated due to the exothermic phenomenon, and the electric conductivity is lowered due to the nature of the electric field drawn in the concentric circle, so that the voltage becomes unstable.

Korean Patent Registration No. 10-0921963

One embodiment of the present invention is to provide a bus bar having a rectangular concave-convex structure to circulate the air by forming an air cooling passage through the convex and convex formation in the bus bar when the current flows.

Among the embodiments, the bus bar having a rectangular concave-convex structure may include a bus bar having a rectangular concave-convex structure for air cooling a metal plate-shaped bus bar used to connect two distribution boxes to move current between the distribution boxes. Air cooling is performed through the irregularities of the rectangular shape formed on the upper surface of the busbar.

In one embodiment, the cooling fan may further include a plurality of blowing fans for lowering the temperature by blowing the cool air in the rectangular shape.

In one embodiment, the plurality of heat dissipation members may be further inserted into and fixed to the convex portions of the rectangular concave-convex, and dissipate heat generated from the busbars.

In one embodiment, it may further include a connection radiating member for connecting the heat radiating member to release the heat generated between the irregularities of the rectangular shape.

In one embodiment, the irregularities may include a plurality of grooves formed in the longitudinal direction on the top surface of the rectangular irregularities with respect to the rectangular irregularities.

In one embodiment, the irregularities may be formed in the square irregularities on the bottom surface of the bus bar to be staggered with the square irregularities formed on the top surface of the bus bar.

The bus bar having the rectangular concave-convex structure according to the embodiment of the present invention forms an air cooling passage through the convex-concave in the bus bar, thereby reducing the heat generated when the current flows in the bus bar, thereby improving the conductivity of the bus bar. It is possible to prevent the busbar from overheating.

1 is a perspective view illustrating a bus bar having a rectangular concave-convex structure according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating insertion of a heat dissipation member into a bus bar having a rectangular concavo-convex structure in FIG. 1.
FIG. 3 is a perspective view illustrating connection of a heat dissipation member to a heat dissipation member in a bus bar having a rectangular concavo-convex structure in FIG. 2.
4 is a perspective view illustrating a plurality of grooves in a bus bar having a rectangular concave-convex structure in FIG. 1.
5 is a perspective view illustrating that irregularities are alternately formed in a bus bar having a rectangular concave-convex structure in FIG. 1.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

1 is a perspective view illustrating a bus bar having a rectangular concave-convex structure according to an embodiment of the present invention.

Referring to FIG. 1, a bus bar 100 having a rectangular concave-convex structure connects two distribution boxes in which a distribution mechanism is installed to air-cool the bus bar 110 having a metal plate shape used to move current between the distribution boxes. As, it includes the irregularities 120 of the rectangular shape.

The bus bar 110 may be made of the same material so that the voltage of the current flowing in accordance with the thickness or material of the bus bar 110 may be changed to flow the current to the bus bar 110. At this time, the booth bar 110 can be made thick so that even if heat is generated by the current flowing through the bus bar 110, the booth bar 110 is not easily broken. For example, when a large amount of current flows through the bus bar 110, the bus bar 110 may melt and break due to the resistance of the current and the frictional heat of the resistor inside the bus bar 110, 110 may have a thickness greater than a predetermined size.

The rectangular concave-convex 120 may be formed on the top surface of the bus bar 110 to form an air cooling passage so that the bus bar 110 is cooled. At this time, a plurality of rectangular irregularities 120 may be formed on the top surface of the bus bar 110, each of the rectangular irregularities 120 may be formed in the longitudinal direction of the bus bar 110.

In addition, the bus bar 100 having a rectangular concave-convex structure may further include a blowing fan 200.

The blowing fan 200 generates cooling air and blows air into the rectangular concave-convex 120 formed on the upper surface of the bus bar 110 to quickly cool the heat generated by the current flowing through the bus bar 110. The temperature of 110 can be lowered. A plurality of blowing fans 200 may be disposed around the booth bar 110. The blowing fan 200 may include a turbo blower, A propeller blower or the like may be used.

In addition, when the plurality of blowing fans 200 are disposed to face each other, the cooling winds generated by the respective blowing fans 200 may collide with each other, so that the cooling efficiency of the busbars 110 may decrease, so that the blowing fans 200 face each other. It may be disposed on the side of the bus bar 100 having a rectangular concave-convex structure so as not to see.

2 is a perspective view illustrating the insertion of a heat dissipation member into a bus bar having a rectangular concave-convex structure in FIG. 1, and FIG. 3 is a heat dissipation member connected to a heat dissipation member in a bus bar having a rectangular concave-convex structure in FIG. 2. It is a perspective view illustrating the connection.

2 and 3, the bus bar 100 having a rectangular concave-convex structure may further include a heat dissipation member 300.

The heat dissipation member 300 is inserted and fixed to the convex portion of the rectangular concave-convex 120 formed on the top surface of the bus bar 110, and may emit heat generated from the bus bar 110. The plurality of heat dissipating members 300 may be inserted into the respective heat dissipating member grooves 301, and the plurality of heat dissipating members 300 may be fixed.

The heat dissipating member 300 may be made of a material such as copper, gold, silver, tungsten, or aluminum having a high thermal conductivity so as to emit heat generated from the bus bar 110.

In one embodiment, the heat dissipating member 300 may be formed of a heat dissipating fin having a shape of a circular bar, and the heat dissipating member 300 may be formed of a circular bar, But may be formed in a shape of a bar having a predetermined flatness rather than a shape.

The heat dissipation member groove 301 may be formed in a plurality of convex portions of the rectangular concave-convex 120 formed on the top surface of the bus bar 110, the depth of the heat dissipation member groove 301 is the heat dissipation member 300 It may have a depth enough to be inserted and fixed. The heat dissipating member groove 301 may be formed to have the same diameter and the same diameter as the heat dissipating member 300.

At this time, the arrangement of the heat dissipating member grooves 301 may be variously arranged. For example, the heat dissipating member grooves 301 may be arranged in a line at regular intervals and staggered at regular intervals.

In addition, the bus bar 100 having a rectangular concave-convex structure may further include a connection heat radiating member 310.

The connection heat dissipation member 310 is each heat dissipation member 300 inserted into the heat dissipation member grooves 301 for dissipating heat generated between the irregularities 120 of the rectangular shape formed on the top surface of the bus bar 110. ) Can be connected. At this time, the connection heat dissipation member 310 is connected to the upper end of each heat dissipation member 300, each one of the heat dissipation member 300 is inserted adjacent to the convex portion of the rectangular concave-convex 120 and one connection heat dissipation member 310 Dogs can be connected.

The connection heat dissipation member 310 may be formed of a material such as copper, gold, silver, tungsten, or aluminum having a high thermal conductivity so as to emit heat generated in the bus bar 110 like the heat dissipation member 300.

4 is a perspective view illustrating a plurality of grooves in a bus bar having a rectangular concave-convex structure in FIG. 1, and FIG. 5 is a cross-sectional view illustrating irregularities in a bus bar having a rectangular concave-convex structure in FIG. 1. Perspective view.

4 and 5, the bus bar 100 having a rectangular concave-convex structure may include a plurality of grooves 130 formed in the longitudinal direction of the rectangular concave-convex 120.

Grooves 130 may be formed in the longitudinal direction on the top surface of the rectangular concave-convex 120 around the rectangular concave-convex 120 formed on the upper surface of the bus bar 110, the busbar ( Cooling wind supplied from the blowing fan 200 to lower the temperature of the 110 may be formed in the shape of a square groove, a triangular groove, etc. in order to widen the surface area of the bus bar 110.

In addition, the bus bar 100 having a rectangular concave-convex structure has a rectangular concave-convex shape on the bottom surface of the bus bar 110 so as to cross the concave-convex concave-convex 120 formed on the upper surface of the bus bar 110. 121 may be formed. In this case, the square irregularities 121 formed on the bottom surface of the bus bar 110 may be formed to have the same size as the square irregularities 120 formed on the upper surface of the bus bar 110. It may be formed in other sizes.

By forming the irregularities 120 and 121 of the rectangular shape on the upper and lower surfaces of the bus bar 110, the cooling air supplied from the blower fan 200 can increase the surface area of the bus bar 110 to reach the bus bar 110. 110) can be lowered.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the present invention as defined by the following claims It can be understood that

100: busbar having a rectangular concave-convex structure
110: Busbar
120: square irregularities
200: blowing fan
300: heat dissipating member
301: heat dissipating member groove
310: connection heat dissipating member

Claims

In the bus bar having a rectangular concavo-convex structure for air-cooling the metal plate-shaped bus bar used to move the current between the distribution box by connecting two distribution boxes equipped with a distribution mechanism,
Bus bar having a rectangular concave-convex structure, characterized in that for cooling the air through the rectangular concave-convex formed on the top surface of the bus bar.

The method of claim 1,
Bus bar having a rectangular concave-convex structure, characterized in that it further comprises a plurality of blower fan to generate a cooling wind blowing the rectangular concavo-convex to lower the temperature.

The method of claim 1,
Bus bar having a rectangular concave-convex structure characterized in that it is inserted into the convex portion of the rectangular concave-convex, and further comprising a plurality of heat dissipating members for dissipating heat generated from the bus bar.

The method of claim 3,
Bus bar having a rectangular concave-convex structure, characterized in that it further comprises a connection radiating member for connecting the heat dissipation member to release the heat generated between the concave-convex shape of the square.

The method according to claim 1,
Bus bar having a rectangular concave-convex structure, characterized in that it comprises a plurality of grooves formed in the longitudinal direction on the top surface of the rectangular concave-convex concave-convex center.

The method according to claim 1,
Bus bar having a rectangular concave-convex structure characterized in that the concave-convex structure of the rectangular shape is formed on the lower surface of the bus bar to cross the square concave-convex formed on the upper surface of the bus bar.