KR20210117061A - Panel board - Google Patents

Abstract

A distribution board is disclosed. The distribution board according to an embodiment of the present invention includes a heat dissipation member that transfers heat generated by a circuit breaker accommodated therein to the outside. One side of the heat dissipation member is connected to a fixed terminal of the circuit breaker, and the other side is exposed to the outside of the distribution board. Accordingly, even when a separate blowing means is not provided, heat generated inside the distribution board can be effectively dissipated.

Description

distribution board {Panel board}

The present invention relates to a distribution board, and more particularly, to a distribution board having a structure capable of effectively dissipating heat generated from a circuit breaker accommodated therein.

A circuit breaker is a device that can cut off electricity to prevent electrical accidents when abnormal currents such as leakage or overcurrent occur. A circuit breaker may be classified into a household or industrial circuit breaker according to an installation location or the strength of a current to be blocked.

The circuit breaker is connected to an external power source or load so as to be energized. When the circuit breaker is operated, the energized state between the external power source or the load is released. Accordingly, a safety accident that may occur due to the energization of an abnormal current may be prevented.

The circuit breaker may be accommodated in any storage article that is exposed to the outside or has a space formed therein. For example, in an environment that is less affected by the surrounding environment, such as indoors, the circuit breaker may be installed to be exposed to the outside. Accordingly, the user can easily recognize whether the circuit breaker is operated visually or audibly.

On the other hand, an environment in which the circuit breaker is greatly influenced by the surrounding environment such as outdoors or outdoors can be considered. Even in the above environment, when the circuit breaker is exposed to the outside, there is a risk that the circuit breaker may be damaged by rain, snow, or direct sunlight.

In the above case, it is difficult to guarantee the operational reliability of the circuit breaker. Accordingly, in the case of the above environment, the circuit breaker may be accommodated inside a storage article such as a panel board, and may be physically separated from the outside. Accordingly, the circuit breaker can be operated stably without being affected by the external environment.

At this time, when the circuit breaker is connected to an external power source or a load to be energized, heat may be generated in the circuit breaker by the current flowing through it. In particular, when the breaker is electrically connected to the solar panel, radiant heat of the solar panel is transmitted to the breaker. In this case, more heat is generated in the circuit breaker.

However, when the circuit breaker is provided inside a distribution board or the like, the circuit breaker blocks communication with the outside as described above. That is, the flow for heat exchange such as convection or radiation does not occur inside the distribution board, so it is difficult for the heat generated by the circuit breaker to be naturally discharged to the outside of the distribution board.

Korean Utility Model Document No. 20-0411963 discloses a heat dissipation device for a switchboard. Specifically, a heat dissipation device of a switchboard for cooling the power receiving and distributing facility is disclosed by providing a heat dissipation hole and a ventilation hole in the upper plate portion and the lower plate portion of the switchboard housing accommodating the power distribution facility therein, respectively.

However, in the heat dissipation device of this type of switchboard, the internal space and the external environment are directly communicated by the heat dissipation hole and the ventilation hole. Accordingly, there is a risk that rain, snow, or dust from the outside may be introduced into the interior space through the heat dissipation hole or the ventilation hole. Moreover, the possibility that direct sunlight or the like is incident through the heat dissipation hole or the ventilation hole to damage the heat dissipation device of the switchboard cannot be excluded.

Korean Patent Document No. 10-1987325 discloses an inverter for photovoltaic power generation having heat dissipation and seismic resistance functions, a switchgear panel, a distribution panel, and a solar connection panel. Specifically, an inverter for photovoltaic power generation, a switchboard, a distribution board, and a solar connection board, which can improve the heat dissipation effect by attaching or coating a carbon nano material to an aluminum heat sink to configure the roof of the upper end of the case, are disclosed.

However, this type of inverter for photovoltaic power generation has a limitation in indirectly cooling the switchgear accommodated therein through heat dissipation of the case itself. That is, the prior literature has a structure in which heat generated from the switchboard is not directly discharged to the outside, but heat is radiated through the switchboard, the case inner space, and the roof of the case.

Therefore, there is a limit in that heat exchange efficiency is inevitably lowered compared to the case where the heat generated in the switchgear is directly radiated to the outside.

Moreover, in order to satisfy a high IP rating, a circuit breaker or the like must be physically separated from the outside. However, the prior documents do not suggest a structure for physically spaced apart from the outside, such as a circuit breaker accommodated therein.

Korean Utility Model Document No. 20-0411963 (2006.03.21.) Korean Patent Document No. 10-1987325 (2019.06.11.)

An object of the present invention is to provide a distribution board having a structure capable of solving the above-described problems.

First, an object of the present invention is to provide a distribution board having a structure capable of effectively cooling a circuit breaker.

Another object of the present invention is to provide a distribution board having a structure that can prevent damage to the circuit breaker due to external dust or moisture.

Another object of the present invention is to provide a distribution board having a structure capable of improving the operational reliability of the circuit breaker.

Another object of the present invention is to provide a distribution board having a structure capable of effectively cooling a circuit breaker without separate electronic equipment.

In order to achieve the above object, the present invention, a housing having a space formed therein; a circuit breaker accommodated in the space of the housing; a bus bar assembly for electrically connecting the circuit breaker and the outside of the housing; and a heat dissipating member coupled to the bus bar assembly to radiate heat generated by the circuit breaker, wherein the heat dissipating member includes: a body coupled to the bus bar assembly; and an extension portion extending from the body portion toward the outside of the housing, the end portion of which is exposed to the outside of the housing.

In addition, the circuit breaker of the distribution panel includes: a circuit breaker body forming an outer shape of the circuit breaker; and a fixed terminal part exposed to the outside of the circuit breaker body and to which the bus bar assembly is coupled.

In addition, the fixed terminal portion of the distribution panel may include a plurality of fixed terminals spaced apart from each other and arranged in parallel, and the bus bar assembly may be coupled to any one or more of the plurality of fixed terminals.

In addition, the bus bar assembly of the distribution board may include: a sub-bus bar coupled to two fixed terminals positioned adjacent to each other among a plurality of the fixed terminals; and a main bus bar coupled to the other fixed terminals among the plurality of fixed terminals.

In addition, the sub-bus bar of the distribution board may include: a first plate coupled to the two fixed terminals; and a second plate extending at a predetermined angle from the first plate, wherein the body portion of the heat dissipation member is positioned adjacent to the first plate and the second plate, respectively, the first plate and the second plate It is disposed to be surrounded by a second plate, and the extension portion of the heat dissipation member may penetrate through the second plate and extend toward the outside of the housing.

In addition, the housing of the distribution board may include: an upper surface covering the space from an upper side and including an upper opening formed therein to communicate with the outside; and a support member coupled to the upper surface to cover the upper opening from the outside of the upper surface, wherein the support member includes: a bus bar through hole through which the bus bar assembly is coupled; and a heat dissipation member through-hole through which the extension portion of the heat dissipation member is coupled therethrough.

In addition, a plurality of the extension portions of the distribution board are provided, the plurality of extension portions are arranged to be spaced apart from each other, and a plurality of the heat dissipation member through-holes are formed, and a plurality of the extension portions pass through the plurality of heat dissipation member through-holes, respectively. can be combined.

In addition, the circuit breaker of the distribution panel includes: a circuit breaker body forming an outer shape of the circuit breaker; and a plurality of fixed terminals extending toward the upper surface and exposed to the outside of the circuit breaker body, to which the bus bar assembly is coupled, a plurality of fixed terminals are provided and are spaced apart from each other and arranged in parallel. a main bus bar energably coupled to a pair of the fixed terminals disposed on the outermost side of the plurality of fixed terminals; and a sub-bus bar energably coupled to the other fixed terminal positioned between the one pair of the fixed terminals among the plurality of fixed terminals.

In addition, the body portion of the heat dissipation member of the distribution board may be coupled to the sub-bus bar, and the extension portion of the heat dissipation member may extend toward the upper surface.

In addition, the housing of the distribution board may include a lower surface covering the space from the lower side and including a lower opening which is formed through the inside and communicates with the outside; and a support member coupled to the lower surface to cover the lower opening from the outside of the lower surface, wherein the support member includes: a bus bar through hole through which the bus bar assembly is coupled; and a heat dissipation member through-hole through which the extension portion of the heat dissipation member is coupled therethrough.

In addition, the circuit breaker of the distribution panel includes: a circuit breaker body forming an outer shape of the circuit breaker; and a plurality of fixed terminals extending toward the lower surface and exposed to the outside of the circuit breaker body, to which the bus bar assembly is coupled, and a plurality of fixed terminals are provided and are spaced apart from each other and arranged in parallel. and a plurality of sub-bus bars respectively energably coupled to a pair of the fixed terminals disposed adjacent to each other among the plurality of fixed terminals.

In addition, the body portion of the heat dissipation member of the distribution board may be coupled to the plurality of bus bars, respectively, and the extension portion of the heat dissipation member may extend toward the lower surface.

In addition, the present invention, a housing having a space formed therein; a circuit breaker accommodated in the space of the housing; a bus bar assembly extending from the circuit breaker to the outside of the housing and electrically connecting the circuit breaker and the outside of the housing; and a heat dissipation member coupled to the bus bar assembly to radiate heat generated by the circuit breaker, the heat dissipating member comprising: a body portion positioned adjacent to the breaker and coupled to the bus bar assembly; a vertical extension portion extending from the body portion toward the outside of the housing in the same direction as the bus bar assembly; and a horizontal extension that is continuous with the vertical extension, forms a predetermined angle with the vertical extension, and extends to the outside of the housing.

In addition, the present invention, a housing having a space formed therein; a circuit breaker accommodated in the space of the housing; a main bus bar extending from the breaker to the outside of the housing and energably connecting the breaker and the outside of the housing; and a heat dissipating member coupled to the main bus bar to radiate heat generated by the circuit breaker, wherein the heat dissipating member includes a body portion positioned adjacent to the breaker and coupled to the main bus bar; and an extension portion extending from the body portion toward the outside of the housing in the same direction as the main bus bar.

According to an embodiment of the present invention, the following effects can be achieved.

First, the circuit breaker is accommodated in the circuit breaker receiving portion of the housing. The circuit breaker is electrically connected to an external power source or load through a bus bar assembly. A heat dissipation member positioned adjacent to the circuit breaker is coupled to the busbar assembly. The heat dissipation member extends toward the outside of the housing at a position adjacent to the circuit breaker so that an end thereof is exposed to the outside of the housing.

Accordingly, the heat generated in the circuit breaker may be transmitted to the bus bar assembly and the heat dissipation member in the form of conduction, and may be discharged to the outside of the housing. Accordingly, the circuit breaker and the circuit breaker housing in which the circuit breaker is accommodated can be effectively cooled.

In addition, the circuit breaker receiving portion is sealed by the cover and each side of the housing. The circuit breaker accommodating part communicates with the outside only by the upper opening formed on the upper surface and the lower opening formed on the lower surface. A support member is coupled to the upper opening and the lower opening, respectively. A bus bar through hole and a heat dissipating member through hole are formed in the support member, so that the bus bar assembly and the heat dissipating member pass therethrough, respectively.

When the bus bar assembly and the heat dissipation member pass through the support member, the bus bar through hole and the heat dissipation member through hole are sealed. Therefore, communication with the circuit breaker accommodating part and the outside is blocked, and the accommodated circuit breaker is not damaged by external dust or moisture.

In addition, through the above-described configuration, the heat generated in the circuit breaker accommodated in the circuit breaker can be effectively dissipated. Through the above-described configuration, external dust or moisture does not flow into the circuit breaker accommodating part.

Accordingly, damage to the circuit breaker by high heat, dust or moisture can be prevented. Accordingly, the operational reliability of the circuit breaker can be improved.

In addition, the heat generated in the circuit breaker is transferred to the bus bar assembly and the heat dissipation member. Each of the busbar assembly and the heat dissipating member is exposed to the outside of the housing. Accordingly, the bus bar assembly and the heat dissipation member can always exchange heat with the outside of the housing.

Accordingly, even if a device such as a fan for generating convection or the like of the circuit breaker accommodating portion is not provided, the accommodated circuit breaker can be effectively cooled.

1 is a perspective view showing a distribution board according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating a state in which the front cover is removed from the distribution board of FIG. 1 .
FIG. 3 is a front view showing the distribution board of FIG. 2 .
4 is a perspective view illustrating a housing provided in the distribution panel of FIG. 1 .
5 is an exploded perspective view of the housing of FIG. 4 ;
6 is a perspective view illustrating a coupling member provided in the housing of FIG. 4 .
7 is a perspective view illustrating a circuit breaker, a bus bar, and a heat dissipation member accommodated in the housing of FIG. 4 .
FIG. 8 is a front view showing the circuit breaker, the bus bar, and the heat dissipation member of FIG. 7 .
9 is a perspective view illustrating a circuit breaker accommodated in the housing of FIG. 4 .
FIG. 10 is a perspective view from another angle showing the circuit breaker received in the housing of FIG. 4 ;
11 is an exploded perspective view illustrating a circuit breaker and a bus bar of FIG. 9 .
12 is a perspective view illustrating a state in which the bus bar of FIG. 9 and the heat dissipation member are coupled.
13 is an exploded perspective view illustrating a state in which the bus bar and the heat dissipation member of FIG. 9 are separated.
14 is a perspective view illustrating a state in which the bus bar of FIG. 9 and the heat dissipation member are coupled.
15 is an exploded perspective view illustrating a state in which the bus bar and the heat dissipation member of FIG. 9 are separated.
16 is a perspective view illustrating a heat dissipation member provided in the distribution panel of FIG. 1 .
Fig. 17 is a front view showing the heat dissipation member of Fig. 16;
18 is a perspective view showing the configuration of a distribution board according to another embodiment of the present invention.
19 is a perspective view showing the configuration of a distribution board according to another embodiment of the present invention.

Hereinafter, a distribution board according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the following description, in order to clarify the characteristics of the present invention, descriptions of some components may be omitted.

1. Definition of terms

The term "breaker" used in the following description refers to any device capable of cutting off current when detecting leakage current or overcurrent, such as an earth leakage breaker or a circuit breaker for wiring.

The term "normal current" used in the following description means a current flowing in a normal state, in which the circuit breaker does not perform a blocking operation.

The term “abnormal current” used in the following description refers to a current other than a normal current in which the circuit breaker performs a blocking operation. The abnormal current may include a leakage current, an overcurrent, an undercurrent, and the like.

The term “energized” used in the following description means that two or more members different from each other are connected to transmit current or electrical signals. In one embodiment, the energized connection may be established in a wired or wireless manner.

The terms “front side”, “rear side”, “left”, “right”, “top” and “bottom” used in the following description are understood with reference to the coordinate system shown in FIGS. 1, 9 and 10 . will be

2. Description of components of the distribution board 10 according to an embodiment of the present invention

1 to 3 , a distribution board 10 according to an embodiment of the present invention is shown.

The distribution board 10 accommodates the circuit breaker 200 therein. The circuit breaker 200 accommodated inside the distribution board 10 may be connected to an external power source or a load to be energized. The connection may be achieved by a conducting wire member (not shown) or the like.

The distribution board 10 may seal the circuit breaker 200 accommodated therein. In other words, the circuit breaker 200 accommodated inside the distribution board 10 is physically spaced apart from the outside of the distribution board 10 .

Accordingly, the circuit breaker 200 accommodated inside the distribution board 10 may not be affected by the external environment.

In the illustrated embodiment, the distribution board 10 includes a housing 100 , a circuit breaker 200 , a bus bar assembly 300 , and a heat dissipation member 400 .

In addition, the distribution board 10 may further include heat dissipation members 500 and 600 according to another embodiment and another embodiment of the present invention (see FIGS. 18 and 19 ). A detailed description thereof will be provided later.

Hereinafter, each component of the distribution board 10 according to an embodiment of the present invention will be described with reference to the accompanying drawings, but the heat dissipation member 400 will be described as a separate clause.

(1) Description of the housing 100

4 to 6 , the distribution board 10 according to an embodiment of the present invention includes a housing 100 .

The housing 100 forms the outer shape of the distribution board 10 . The housing 100 is a part where the distribution board 10 is mainly exposed to the outside.

A space is formed inside the housing 100 . The circuit breaker 200 is accommodated in the space to be energized with the outside. That is, the housing 100 functions as a housing for the circuit breaker 200 .

The bus bar assembly 300 is formed through the inside of the housing 100 . The bus bar assembly 300 is energably connected to the circuit breaker 200 and an external power source or load, respectively.

The heat dissipation member 400 may be partially exposed to the outside of the housing 100 . Accordingly, heat generated in the circuit breaker 200 accommodated in the housing 100 or heat in the internal space of the housing 100 may be discharged to the outside of the housing 100 . A detailed description thereof will be provided later.

The housing 100 may be formed of a material having rigidity. In an embodiment, the distribution board 10 may be formed of a steel material having a painted surface.

In the illustrated embodiment, the housing 100 has a rectangular flat surface, and has a rectangular prism shape extending in the vertical direction. The shape of the housing 100 may be any shape that accommodates the circuit breaker 200 therein, and the accommodated circuit breaker 200 can be electrically connected to an external power source or load.

In the illustrated embodiment, the housing 100 includes a cover 110 , a side surface 120 , an upper surface 130 , a lower surface 140 , a circuit breaker receiving part 150 , and a support member 160 .

The cover 110 forms one side of the housing 100, the front side in the illustrated embodiment. The cover 110 may be detachably coupled to the housing 100 .

Specifically, the cover 110 is hinged to any one of the side surfaces 120 in the direction (that is, the direction toward the rear in the illustrated embodiment) or the circuit breaker receiving part ( 150) may be rotated in a direction to open (ie, a direction facing forward in the illustrated embodiment).

In another embodiment, the cover 110 may be detachably coupled to the side surface 120 , the upper surface 130 , and the lower surface 140 . In the above embodiment, a separate fastening member (not shown) may be provided for detachable coupling.

The cover 110 may cover the circuit breaker receiving part 150 . That is, when the cover 110 is coupled to the housing 100 , the circuit breaker accommodating part 150 is blocked from communicating with the outside. Accordingly, the circuit breaker accommodating part 150 and the circuit breaker 200 accommodated in the breaker accommodating part 150 are physically separated from the outer space of the housing 100 .

In the illustrated embodiment, the cover 110 is a rectangular plate shape. The shape of the cover 110 may be changed according to the shape of the housing 100 or the shape of the circuit breaker accommodating part 150 .

Among the corners of the cover 110 , the long corners facing each other, left and right sides in the illustrated embodiment, are coupled to the side surface 120 , respectively.

The side surface 120 forms both sides of the housing 100 facing each other, a left side and a right side in the illustrated embodiment. The side surface 120 is disposed to surround the circuit breaker receiving part 150 from the left and right sides.

In the illustrated embodiment, the side surface 120 includes a first side surface 121 forming a left side surface of the housing 100 and a second side surface 122 forming a right side surface of the housing 100 .

The first side surface 121 and the second side surface 122 are continuous with the upper surface 130 and the lower surface 140, respectively. Specifically, the upper end of the first side surface 121 is continuous with the left end of the upper surface 130 . In addition, the lower end of the first side surface 121 is continuous with the left end of the lower surface (140).

Also, the upper end of the second side surface 122 is continuous with the right end of the upper surface 130 . The lower end of the second side surface 122 is continuous with the right end of the lower surface 140 .

The first side 121 and the second side 122 may be disposed to face each other. In an embodiment, the first side surface 121 and the second side surface 122 may extend parallel to each other.

In the illustrated embodiment, the first side 121 and the second side 122 are provided in a rectangular plate shape having a longer vertical length. The shapes of the first side surface 121 and the second side surface 122 are preferably formed to correspond to each other.

The upper surface 130 forms an upper surface among several surfaces of the housing 100 . The upper surface 130 is disposed to surround the circuit breaker accommodating part 150 from the upper side.

The upper surface 130 is continuous with the side surface 120 , respectively. In the illustrated embodiment, the upper surface 130 is continuous between the upper end of the first side 121 and the upper end of the second side 122 .

In the illustrated embodiment, the upper surface 130 has a rectangular plate shape in which the length in the left-right direction is longer than the length in the front-rear direction. It will be understood that the length in the left and right direction of the upper surface 130 may be changed according to a distance between the first side surface 121 and the second side surface 122 .

The upper surface 130 includes an upper opening 131 .

The upper opening 131 is formed through the inside of the upper surface 130 . The upper opening 131 communicates with the circuit breaker accommodating part 150 and the outside of the housing 100 . The bus bar assembly 300 and the heat dissipation members 400 , 500 , and 600 may be exposed to the outside of the housing 100 through the upper opening 131 .

In the illustrated embodiment, the upper opening 131 is formed to have a rectangular cross section. Each corner surrounding the upper opening 131 may be formed parallel to each corner of the upper surface 130 .

The upper opening 131 may be formed at a position corresponding to the lower opening 141 . In other words, the lower opening 141 may be an orthographic projection of the upper opening 131 to the lower surface 140 . That is, when the upper opening 131 is vertically extended, it may be aligned with the lower opening 141 .

The upper opening 131 and the lower opening 141 may be formed to correspond to each other. In an embodiment, the upper opening 131 and the lower opening 141 may have the same shape.

The upper opening 131 may be covered by the support member 160 . Specifically, the support member 160 may be coupled to the upper surface 130 to cover the upper opening 131 .

When the support member 160 is coupled to the upper surface 130 , only an area corresponding to the bus bar through hole 161 and the heat dissipation member through hole 162 of the support member 160 among the upper opening 131 is the circuit breaker receiving part ( 150) can be communicated.

Accordingly, the circuit breaker accommodating part 150 may communicate with the outside of the housing 100 only through the bus bar through hole 161 and the heat dissipation member through hole 162 . Accordingly, the inflow of dust or moisture that may cause a malfunction of the circuit breaker 200 may be blocked.

The upper surface 130 is disposed to face the lower surface 140 .

The lower surface 140 forms a lower surface among several surfaces of the housing 100 . The lower surface 140 is disposed to surround the circuit breaker accommodating part 150 from the lower side.

The lower surface 140 is continuous with the side surface 120 , respectively. In the illustrated embodiment, the lower surface 140 is continuous between the lower end of the first side 121 and the lower end of the second side 122 .

In the illustrated embodiment, the lower surface 140 has a rectangular plate shape in which the length in the left-right direction is longer than the length in the front-rear direction. It will be understood that the length in the left-right direction of the lower surface 140 may be changed according to a distance between the first side surface 121 and the second side surface 122 .

The lower surface 140 includes a lower opening 141 .

The lower opening 141 is formed through the inside of the lower surface 140 . The lower opening 141 communicates with the circuit breaker accommodating part 150 and the outside of the housing 100 . The bus bar assembly 300 and the heat dissipation members 400 , 500 , and 600 may be exposed to the outside of the housing 100 through the lower opening 141 .

In the illustrated embodiment, the lower opening 141 is formed to have a rectangular cross section. Each corner surrounding the lower opening 141 may be formed parallel to each corner of the lower surface 140 .

The lower opening 141 may be formed at a position corresponding to the upper opening 131 . In other words, the upper opening 131 may be an orthographic projection of the lower opening 141 onto the upper surface 130 . That is, when the lower opening 141 is vertically extended, it may be aligned with the upper opening 131 .

The lower opening 141 may be covered by the support member 160 . Specifically, the support member 160 may be coupled to the lower surface 140 to cover the lower opening 141 .

When the support member 160 is coupled to the lower surface 140 , only an area corresponding to the bus bar through hole 161 and the heat dissipation member through hole 162 of the support member 160 among the lower openings 141 is the circuit breaker receiving part ( 150) can be communicated.

Accordingly, the circuit breaker accommodating part 150 may communicate with the outside of the housing 100 only through the bus bar through hole 161 and the heat dissipation member through hole 162 . Accordingly, the inflow of dust or moisture that may cause a malfunction of the circuit breaker 200 may be blocked.

The circuit breaker accommodating part 150 is a space formed inside the housing 100 . The circuit breaker receiving unit 150 accommodates the circuit breaker 200 . The circuit breaker 200 accommodated in the circuit breaker accommodating part 150 may be electrically connected to an external power source or load through the bus bar assembly 300 .

The circuit breaker accommodating part 150 may be defined as a space surrounded by each of the surfaces 120 , 130 , and 140 . That is, the circuit breaker accommodating part 150 is a space partitioned by the side surface 120 , the upper surface 130 , and the lower surface 140 .

The circuit breaker accommodating part 150 may communicate with the outside or block communication with the outside depending on whether the cover 110 is coupled.

Specifically, when the cover 110 is coupled to the housing 100 , the circuit breaker accommodating part 150 may be sealed by the cover 110 . In addition, when the cover 110 is removed from the housing 100 or moved to open the circuit breaker accommodating part 150 , the breaker accommodating part 150 may communicate with the outside.

The circuit breaker receiving part 150 communicates with the upper opening 131 and the lower opening 141 . In addition, the circuit breaker accommodating part 150 communicates with the bus bar through-hole 161 and the heat dissipating member through-hole 162 of the support member 160 coupled to the upper opening 131 and the lower opening 141 , respectively.

Accordingly, the bus bar assembly 300 and the heat dissipation member 400 coupled to the circuit breaker 200 accommodated in the circuit breaker accommodating part 150 pass through the bus bar through hole 161 and the heat dissipation member through hole 162, respectively, to the housing ( 100) can be exposed to the outside.

The support member 160 supports the bus bar assembly 300 or the heat dissipation member 400 coupled to the circuit breaker 200 . In addition, the support member 160 provides a passage through which the bus bar assembly 300 and the heat dissipation member 400 are exposed to the outside of the housing 100 .

The support member 160 may be coupled to the upper surface 130 . The support member 160 may be coupled to the upper surface 130 while covering the upper opening 131 . When the support member 160 is coupled, the upper opening 131 may communicate with the outside of the housing 100 only through the bus bar through hole 161 and the heat dissipation member through hole 162 .

In the illustrated embodiment, the support member 160 has a rectangular plate shape in which the length in the left and right directions is longer than the length in the front and rear directions. The shape of the support member 160 may be any shape that is coupled to the upper surface 130 to cover the upper opening 131 .

In the illustrated embodiment, the upper surface 130 , the support member 160 , and the upper opening 131 are all formed in a rectangular plate shape in which the length in the left and right directions is longer than the length in the front and rear directions. However, the area of the support member 160 is smaller than the area of the upper surface 130 and larger than the area of the upper opening 131 .

Accordingly, when the support member 160 is coupled to the upper surface 130 , the upper opening 131 may be covered. In this case, a sealing member (not shown) such as rubber is provided between the support member 160 and the upper surface 130 to effectively seal the upper opening 131 .

A plurality of support members 160 may be provided. The plurality of support members 160 may be respectively coupled to the upper surface 130 and the lower surface 140 . In the illustrated embodiment, two support members 160 are provided, respectively, coupled to the upper surface 130 and the lower surface 140 .

As will be described later, the heat dissipation member 500 according to another embodiment of the present invention includes a horizontal extension part 530 . In the above embodiment, the support member 160 may also be coupled to each side surface 120 .

The support member 160 includes a bus bar through hole 161 , a heat dissipation member through hole 162 , and a fastening hole 163 .

The bus bar through hole 161 is formed through the inside of the support member 160 . The bus bar assembly 300 is through-coupled to the bus bar through hole 161 .

Specifically, the plate-shaped portion 310a of the main bus bar 310 passes through the bus bar through hole 161 . Accordingly, one end in the direction in which the main bus bar 310 extends, in the illustrated embodiment, an upper end may be exposed to the outside of the housing 100 .

The bus bar through-hole 161 may be formed in a shape corresponding to the cross-sectional shape of the plate-shaped portion 310a of the main bus bar 310 . In the illustrated embodiment, the bus bar through-holes 161 are formed in a rectangular shape in which the length in the left and right directions is longer than the length in the front and rear directions.

A plurality of bus bar through-holes 161 may be formed. The plurality of bus bar through-holes 161 may be disposed to be spaced apart from each other. In the illustrated embodiment, two bus bar through-holes 161 are formed and disposed to be spaced apart from each other in the left and right directions.

It will be understood that the number and arrangement method may be determined according to the number of main bus bars 310 and the relative positional relationship between the first main bus bars 311 and the second main bus bars 312 .

A packing element (not shown) may be provided in the bus bar through-hole 161 . A packing member (not shown) wraps the main bus bar 310 passing through the bus bar through hole 161 , thereby sealing the bus bar through hole 161 to which the main bus bar 310 is penetrated.

A heat dissipation member through-hole 162 is formed between the plurality of bus bar through-holes 161 .

The heat dissipation member through-hole 162 is formed through the inside of the support member 160 . The heat dissipation member 400 is through-coupled to the heat dissipation member through-hole 162 .

Specifically, the extended portion 420 of the heat dissipation member 400 passes through the heat dissipation member through hole 162 . Accordingly, one end in the direction in which the extension part 420 extends, in the illustrated embodiment, the upper end may be exposed to the outside of the housing 100 .

The heat dissipation member through-hole 162 may be formed in a shape corresponding to the cross-sectional shape of the extension portion 420 of the heat dissipation member 400 . In the illustrated embodiment, the heat dissipation member through-hole 162 is formed to have a circular cross section.

A plurality of heat dissipation member through-holes 162 may be formed. The plurality of heat dissipation member through-holes 162 may be disposed to be spaced apart from each other. In the illustrated embodiment, three heat-dissipating member through-holes 162 are formed and disposed to be spaced apart from each other in the left-right direction.

In addition, the plurality of heat dissipation member through-holes 162 are positioned between the plurality of bus bar through-holes 161 .

It will be understood that the number and arrangement method may be determined according to the number and arrangement method of the extension parts 420 and the relative positional relationship between the main bus bar 310 and the heat dissipation member 400 .

A packing member (not shown) may be provided in the heat dissipation member through-hole 162 . A packing member (not shown) wraps the extension 420 through-coupled to the heat-dissipating member through-hole 162 , thereby sealing the heat-dissipating member through-hole 162 to which the extension 420 is through-coupled.

A fastening hole 163 is formed adjacent to each vertex of the support member 160 .

The fastening hole 163 is formed through the inside of the support member 160 . A fastening member (not shown) is coupled through the fastening hole 163 . Accordingly, the support member 160 may be firmly coupled to the upper surface 130 or the lower surface 140 .

A plurality of fastening holes 163 may be provided. The plurality of fastening holes 163 may be disposed to be spaced apart from each other. In the illustrated embodiment, four fastening holes 163 are provided and positioned adjacent to each vertex of the rectangular plate-shaped support member 160 .

That is, the fastening hole 163 is located between the outside of the bus bar through hole 161 and the inside of the outer periphery of the support member 160 . The number and arrangement of the fastening holes 163 may be changed.

In the above description, the support member 160 coupled to the upper surface 130 in the illustrated embodiment has been mainly described. In the case of the support member 160 coupled to the lower surface 140 , only the extended portion 420 of the heat dissipation member 400 penetrates, so the bus bar through hole 161 is not formed and a plurality of heat dissipation member through holes 162 are formed. It will be understood that dogs will be formed.

(2) Description of the circuit breaker 200

7 to 10 , the distribution board 10 according to an embodiment of the present invention includes a circuit breaker 200 .

The circuit breaker 200 is electrically connected to an external power source or load of the distribution board 10 . When the current delivered from an external power source or load corresponds to an abnormal current, the circuit breaker 200 is operated. Accordingly, the energization state between the external power source or load and the circuit breaker 200 is cut off.

As a result, the energization between the external power supply or the load is also cut off. Accordingly, a safety accident that may occur as an abnormal current is supplied can be prevented.

The circuit breaker 200 is accommodated in the housing 100 . Specifically, the circuit breaker 200 is accommodated in the circuit breaker accommodating part 150 and is not exposed to the outside.

After being accommodated in the circuit breaker accommodating part 150 , the circuit breaker 200 according to an embodiment of the present invention may be physically separated from the outside of the housing 100 . Accordingly, the circuit breaker 200 is not damaged by dust or moisture existing outside the housing 100 . As a result, the operational reliability of the circuit breaker 200 can be improved.

The circuit breaker 200 is electrically connected to the outside of the housing 100 . The connection is achieved by coupling the circuit breaker 200 and the bus bar assembly 300 to be energized.

Heat generated by the circuit breaker 200 may be transferred to the outside of the housing 100 . This heat transfer is achieved by the heat dissipation member 400 in contact with the circuit breaker 200 or the bus bar assembly 300 .

In the illustrated embodiment, the circuit breaker 200 includes a circuit breaker body 210 , an upper fixed terminal unit 220 , a lower fixed terminal unit 230 , and a support plate 240 .

The circuit breaker body 210 forms the outer shape of the circuit breaker 200 . A space is formed inside the circuit breaker body 210 . In the space, the circuit breaker 200 detects an abnormal current, and various components for performing a blocking operation when the abnormal current is detected may be mounted.

In one embodiment, a trip device (not shown), a mechanism (not shown), a rotating shaft (not shown), a movable contact unit (not shown) and an arc extinguishing unit (not shown) are mounted in the space. can

Since the process of operating the components as an abnormal current is applied is a well-known technique, a detailed description thereof will be omitted.

The circuit breaker body 210 may be formed of an insulating material. This is to prevent the current passing through each component mounted inside the circuit breaker body 210 from being arbitrarily conducted to the outside of the circuit breaker body 210 .

The circuit breaker body 210 may be formed of a heat-resistant and high-rigidity material. This is to prevent damage by an arc generated inside the circuit breaker body 210 .

In one embodiment, the circuit breaker body 210 may be formed of a ceramic material or a synthetic resin material such as reinforced plastic.

On each side of the circuit breaker body 210 facing the upper surface 130 and the lower surface 140, the upper and lower sides in the illustrated embodiment, respectively, the upper fixed terminal portion 220 and the lower fixed terminal portion 230 are partially exposed.

The upper fixed terminal part 220 extends toward one side of the circuit breaker body 210, upward in the illustrated embodiment. The one side of the upper fixed terminal unit 220, the upper end in the illustrated embodiment is exposed to the outside of the circuit breaker body (210). The bus bar assembly 300 is coupled to the exposed portion of the upper fixed terminal 220 . Accordingly, the upper fixed terminal part 220 and the bus bar assembly 300 may be electrically connected.

The other side of the upper fixed terminal unit 220 , the lower side in the illustrated embodiment is accommodated in the circuit breaker body 210 . The other side (ie, the lower side) of the upper fixed terminal part 220 is electrically connected to any component mounted inside the circuit breaker body 210 .

In an embodiment, the upper fixed terminal unit 220 may be electrically connected to a movable contact unit (not shown) and the like. Accordingly, various components mounted inside the circuit breaker 200 may be electrically connected to the upper fixed terminal part 220 and the bus bar assembly 300 , respectively.

A separate fastening member (not shown) may be provided for coupling the upper fixed terminal part 220 and the bus bar assembly 300 . The fastening member (not shown) may be provided as a screw member or the like.

The upper fixed terminal unit 220 may include a plurality of fixed terminals.

In the illustrated embodiment, the upper fixed terminal unit 220 includes a first fixed terminal 221 , a second fixed terminal 222 , a third fixed terminal 223 , and a fourth fixed terminal 224 . In this case, currents of a total of four phases of R-phase, S-phase, T-phase or U-phase, V-phase, W-phase three-phase current and n-phase current flow through the circuit breaker 200 according to an embodiment of the present invention due to being

The number of fixed terminals included in the upper fixed terminal unit 220 may be changed according to the number of phases of current flowing through the circuit breaker 200 .

In the illustrated embodiment, the first fixed terminal 221 is located on the leftmost side, and the fourth fixed terminal 224 is located on the rightmost side. In addition, the second fixed terminal 222 and the third fixed terminal 223 are positioned between the first fixed terminal 221 and the fourth fixed terminal 224 .

A first main bus bar 311 is energably connected to the first fixed terminal 221 . In addition, the second main bus bar 312 is energably connected to the fourth fixed terminal 224 .

The first sub-bus bar 321 is energably connected to the second fixed terminal 222 and the third fixed terminal 223 .

The upper fixed terminal unit 220 is electrically connected to the lower fixed terminal unit 230 through the components mounted inside the circuit breaker body 210 .

The lower fixed terminal part 230 extends downward in one side of the circuit breaker body 210, in the illustrated embodiment. The one side of the lower fixed terminal part 230 , the lower end in the illustrated embodiment is exposed to the outside of the circuit breaker body 210 . The bus bar assembly 300 is coupled to the exposed portion of the lower fixed terminal part 230 . Accordingly, the lower fixed terminal part 230 and the bus bar assembly 300 may be electrically connected.

The other side of the lower fixed terminal part 230 , the upper side in the illustrated embodiment, is accommodated in the circuit breaker body 210 . The other side (ie, the upper side) of the lower fixed terminal part 230 is electrically connected to any component mounted inside the circuit breaker body 210 .

In an embodiment, the lower fixed terminal unit 230 may be electrically connected to a movable contact unit (not shown) and the like. Accordingly, various components mounted inside the circuit breaker 200 may be electrically connected to the lower fixed terminal unit 230 and the bus bar assembly 300 , respectively.

A separate fastening member (not shown) may be provided for coupling the lower fixed terminal part 230 and the bus bar assembly 300 . The fastening member (not shown) may be provided as a screw member or the like.

The lower fixed terminal unit 230 may include a plurality of fixed terminals.

In the illustrated embodiment, the lower fixed terminal unit 230 includes a first fixed terminal 231 , a second fixed terminal 232 , a third fixed terminal 233 , and a fourth fixed terminal 234 . In this case, currents of a total of four phases of R-phase, S-phase, T-phase or U-phase, V-phase, W-phase three-phase current and n-phase current flow through the circuit breaker 200 according to an embodiment of the present invention due to being

The number of fixed terminals included in the lower fixed terminal unit 230 may be changed according to the number of phases of current flowing through the circuit breaker 200 .

In the illustrated embodiment, the first fixed terminal 231 is located on the leftmost side, and the fourth fixed terminal 234 is located on the rightmost side. Also, a second fixed terminal 232 and a third fixed terminal 233 are positioned between the first fixed terminal 231 and the fourth fixed terminal 234 .

A second sub-bus bar 322 is energably connected to the first fixed terminal 231 and the second fixed terminal 232 . In addition, the third sub-bus bar 323 is energably connected to the third fixed terminal 233 and the fourth fixed terminal 234 .

The support plate 240 fixes the circuit breaker body 210 to the housing 100 .

In the illustrated embodiment, the support plate 240 is coupled to one side of the housing 100 opposite to the cover 110 , that is, a surface of the rear side. In addition, the support plate 240 is coupled to the left and right sides of the circuit breaker body 210, respectively. In one embodiment, the coupling may be a screw coupling.

A plurality of support plates 240 may be provided. The plurality of support plates 240 may support several sides of the circuit breaker body 210 . In the illustrated embodiment, two support plates 240 are provided to support the left and right sides of the circuit breaker body 210 , respectively.

The position, number, and arrangement method of the support plate 240 may be determined in any form capable of fixing the circuit breaker body 210 to the housing 100 .

(3) Description of the busbar assembly 300

Referring back to FIGS. 7, 8, and 11 to 15 , the distribution board 10 according to the embodiment of the present invention includes a bus bar assembly 300 .

The bus bar assembly 300 is electrically connected to the circuit breaker 200 accommodated in the circuit breaker accommodating part 150 and an external power source or load, respectively. By the bus bar assembly 300 , the circuit breaker 200 may be electrically connected to an external power source or load.

The bus bar assembly 300 is coupled to the circuit breaker 200 . Specifically, the bus bar assembly 300 may be coupled to the upper fixed terminal unit 220 and the lower fixed terminal unit 230 provided in the circuit breaker 200 .

In an embodiment, the bus bar assembly 300 may be screw-coupled to the upper fixed terminal unit 220 and the lower fixed terminal unit 230 , respectively.

The bus bar assembly 300 may be in contact with the heat dissipation member 400 . Heat generated by the circuit breaker 200 may be transferred to the heat dissipation member 400 through the bus bar assembly 300 . Accordingly, the heat generated by the circuit breaker 200 may be discharged to the outside of the housing 100 .

The bus bar assembly 300 may be formed of a conductive material. This is to ensure that the circuit breaker 200 and an external power source or load are smoothly energized. In an embodiment, the bus bar assembly 300 may be formed of a copper (Cu) or silver (Ag) material.

In the following description, it is assumed that the main bus bar 310 is electrically connected to the upper fixed terminal unit 220 . Alternatively, the circuit breaker 200 may be vertically symmetrical, so that the main bus bar 310 may be electrically connected to the lower fixed terminal unit 230 .

In the illustrated embodiment, the bus bar assembly 300 includes a main bus bar 310 and a sub bus bar 320 .

The main bus bar 310 electrically connects the circuit breaker 200 and an external power source or load. The main bus bar 310 is electrically connected to the circuit breaker 200 and an external power source or load, respectively.

Specifically, one side of the main bus bar 310 is electrically connected to the upper fixed terminal unit 220 or the lower fixed terminal unit 230 provided in the circuit breaker 200 .

In the illustrated embodiment, the lower side of the main bus bar 310 is electrically connected to the upper fixed terminal part 220 . Alternatively, it will be understood that the upper side of the main bus bar 310 may be electrically connected to the lower fixed terminal unit 230 .

The other side of the main bus bar 310 is through-coupled to the support member 160 and then exposed to the outside of the housing 100 . An external power source or load is energably connected to the other side of the main bus bar 310 .

In the illustrated embodiment, the upper side of the main bus bar 310 penetrates through the support member 160 coupled to the upper surface 130 , and then is exposed to the outside of the housing 100 . Alternatively, it will be understood that the lower side of the main bus bar 310 may be electrically connected to the upper fixed terminal unit 220 .

The main bus bar 310 is formed to extend in one direction. In the illustrated embodiment, the main bus bar 310 is formed to extend in the vertical direction.

The main bus bar 310 may be formed to extend longer than a distance between the upper fixed terminal part 220 and the support member 160 coupled to the upper surface 130 . Also, the main bus bar 310 may extend longer than a distance between the lower fixed terminal part 230 and the support member 160 coupled to the lower surface 140 .

In an embodiment, the main bus bar 310 may extend to a length of 10 cm or more.

The main bus bar 310 includes a plate-shaped portion 310a and a main through hole 310b.

The plate-shaped part 310a forms the body of the main bus bar 310 . The plate-shaped portion 310a is formed to extend in one direction. In the illustrated embodiment, the plate-shaped portion 310a is formed to extend in the vertical direction. As described above, the plate-shaped portion 310a may extend to a length of 10 cm or more.

In the illustrated embodiment, the plate-shaped portion 310a has a rectangular cross-section and is formed in a plate-like shape extending in the vertical direction. Alternatively, the plate-shaped portion 310a has a predetermined thickness and is formed in a plate-like shape extending in the vertical direction.

One side of the plate-shaped part 310a facing the upper surface 130, a through hole is formed in the upper side in the illustrated embodiment. The through hole penetrates the bus bar through hole 161 of the support member 160 and is exposed to the outside of the housing 100 . A fastening member (not shown) for fastening the plate-shaped part 310a to an external power source or load may be fastened to the through hole.

The main through hole 310b is formed on the other side of the plate-shaped part 310a facing the circuit breaker 200, and on the lower side in the illustrated embodiment.

A fastening member (not shown) for fastening the plate-shaped part 310a and the upper fixed terminal part 220 may be fastened to the main through hole 310b. Accordingly, the plate-shaped portion 310a and the upper fixed terminal portion 220 may be electrically connected.

As will be described later, the heat dissipation member 600 according to another embodiment of the present invention may be coupled to the main bus bar 310 . In the above embodiment, a fastening member (not shown) for fastening the heat dissipation member 600, the plate-shaped part 310a, and the upper fixed terminal part 220 may be fastened to the main through hole 310b.

A plurality of main bus bars 310 may be provided. The plurality of main bus bars 310 may be electrically connected to different fixed terminals 221 , 222 , 223 and 224 of the upper fixed terminal unit 220 .

In the illustrated embodiment, the main bus bar 310 includes a first main bus bar 311 positioned on the left side and a second main bus bar 312 positioned on the right side.

The first main bus bar 311 is located on the left side, and one side facing the circuit breaker 200 and the lower side in the illustrated embodiment are energably connected to the first fixed terminal 221 .

The other side of the first main bus bar 311 facing the upper surface 130, the upper side in the illustrated embodiment is through-coupled to the left bus bar through hole 161, and then the end is exposed to the outside of the housing 100 do. An external power source or load is connected to the end to be energized.

The second main bus bar 312 is located on the right side, and one side facing the circuit breaker 200 and the lower side in the illustrated embodiment are connected to the fourth fixed terminal 224 so as to be energized.

The other side of the second main bus bar 312 facing the upper surface 130 , in the illustrated embodiment, the upper side is through-coupled to the right bus bar through hole 161 , and then the end is exposed to the outside of the housing 100 . do. An external power source or load is connected to the end to be energized.

The sub-bus bar 320 is electrically connected to different fixed terminals provided in the circuit breaker 200 , respectively. The sub-bus bar 320 connects each of the connected fixed terminals to be energized. In addition, as will be described later, the heat dissipation member 400 according to an embodiment of the present invention is coupled to the sub-bus bar 320 .

Accordingly, the heat generated by the circuit breaker 200 may be transferred to the outside of the housing 100 through the heat dissipation member 400 via any fixed terminal and the sub-bus bar 320 .

The sub-bus bar 320 may include at least one bent part. That is, the sub-bus bar 320 includes a first portion coupled to an arbitrary fixed terminal and a second portion extending toward the cover 110 at a predetermined angle with the first portion.

In the illustrated embodiment, the sub-bus bar 320 is coupled to an arbitrary fixed terminal, and is continuous with the first plate 320a and the first plate 320a connected to the arbitrary fixed terminal to be energized, and the cover and a second plate 320b extending toward 110 .

Also, in the illustrated embodiment, the sub bus bar 320 includes a first plate 320a, a second plate 320b, a sub through hole 320c, and a heat dissipation through hole 320d.

The first plate 320a may be provided in a plate shape. In the illustrated embodiment, the first plate 320a is respectively coupled to two fixed terminals adjacent to each other. The length of the first plate 320a in the left and right direction may be extended enough to contact both fixed terminals adjacent to each other.

One end of the first plate 320a opposite to the circuit breaker 200 is continuous with the second plate 320b. The second plate 320b forms a predetermined angle with the first plate 320a at the one end of the first plate 320a and extends toward the cover 110 .

In an embodiment, the second plate 320b may extend perpendicular to the first plate 320a.

The second plate 320b may be provided in a plate shape. In the illustrated embodiment, the second plate 320b may extend in the left and right directions by the same length as the first plate 310a.

A fastening member (not shown) for fastening the sub-bus bar 320 to the fixed terminal units 220 and 230 may be fastened to the sub-through hole 320c. Accordingly, the first plate 320a and the fixed terminal portions 220 and 230 may be electrically connected. The sub through hole 320c is formed through the inside of the first plate 320a.

A plurality of sub through-holes 320c may be formed. The plurality of sub through-holes 320c may be disposed to be spaced apart from each other. This is due to the first plate 320a being coupled to two fixed terminals adjacent to each other, respectively. In the illustrated embodiment, two sub through-holes 320c are formed to fit through holes formed in respective fixing terminals adjacent to each other, respectively.

The extension portion 420 of the heat dissipation member 400 is through-coupled to the heat dissipation through hole 320d. Accordingly, the extension 420 of the heat dissipation member 400 may extend toward the support member 160 through the second plate 320b. The heat dissipation through-hole 320d is formed through the inside of the second plate 320b.

In the illustrated embodiment, the heat dissipation through hole 320d is formed to have a circular cross section. This is due to the fact that the cross-section of the extension 420 through-coupled to the heat dissipation through-hole 320d is formed in a circular shape. The shape of the heat dissipation through hole 320d may be changed according to the cross-sectional shape of the extension part 420 .

A plurality of heat dissipation through-holes 320d may be formed. The plurality of heat dissipation through-holes 320d may be disposed to be spaced apart from each other. This is due to the fact that a plurality of extension parts 420 according to an embodiment of the present invention are provided.

In the illustrated embodiment, three heat dissipation through-holes 320d are provided and are arranged side by side in the left and right direction. Each of the heat dissipation through-holes 320d is through-coupled with a plurality of extension portions 420 , respectively.

A plurality of sub-bus bars 320 may be provided. The plurality of sub-bus bars 320 may be electrically connected to fixed terminals adjacent to each other, respectively.

In the illustrated embodiment, the sub-bus bar 320 includes a first sub-bus bar 321 , a second sub-bus bar 322 , and a third sub-bus bar 323 .

The first sub-bus bar 321 is located above the circuit breaker 200 and is energably connected to the upper fixed terminal part 220 .

In the illustrated embodiment, the first sub-bus bar 321 is electrically connected to the second fixed terminal 222 and the third fixed terminal 223 of the upper fixed terminal part 220 , respectively.

In addition, the heat dissipation member 400 may be coupled to the first sub-bus bar 321 . The heat dissipation member 400 coupled to the first sub-bus bar 321 may extend toward (ie, toward the upper side) of the support member 160 coupled to the upper surface 130 .

The second sub-bus bar 322 is located on the left side of the lower side of the circuit breaker 200 and is electrically connected to the lower fixed terminal part 230 .

In the illustrated embodiment, the second sub-bus bar 322 is electrically connected to the first fixed terminal 231 and the second fixed terminal 232 of the lower fixed terminal part 230 , respectively.

The third sub-bus bar 323 is located on the right side of the lower side of the circuit breaker 200 and is electrically connected to the lower fixed terminal part 230 .

In the illustrated embodiment, the third sub-bus bar 323 is electrically connected to the third fixed terminal 233 and the fourth fixed terminal 234 of the lower fixed terminal part 230 , respectively.

In addition, the heat dissipation member 400 may be coupled to the second and third sub-bus bars 322 and 323 , respectively. Each heat dissipation member 400 coupled to the second and third sub-bus bars 322 and 323 may extend toward the support member 160 coupled to the lower surface 140 (ie, downward).

3. Description of the heat dissipation member 400 according to an embodiment of the present invention

The distribution board 10 according to an embodiment of the present invention includes a heat dissipation member 400 . The heat dissipation member 400 is in contact with the circuit breaker 200 or the bus bar assembly 300 to receive heat generated by the circuit breaker 200 . The heat transferred to the heat dissipation member 400 may move along the heat dissipation member 400 and be discharged to the outside of the housing 100 .

Accordingly, heat generated inside the circuit breaker accommodating part 150 in which separate convection does not occur can be effectively dissipated. Accordingly, the circuit breaker 200 is not damaged by the generated heat, so that the operational reliability of the circuit breaker 200 can be improved.

Hereinafter, the heat dissipation member 400 according to an embodiment of the present invention will be described in detail with reference to FIGS. 12 to 17 .

The heat dissipation member 400 is coupled to the bus bar assembly 300 . The heat dissipation member 400 receives heat generated from the circuit breaker 200 and transferred to the bus bar assembly 300 through each of the fixed terminal units 220 and 230 . The transferred heat moves along the heat dissipation member 400 and moves to the outside of the housing 100 .

Accordingly, the heat generated in the circuit breaker 200 may be transferred to the outside of the circuit breaker accommodating part 150 . As a result, the circuit breaker accommodating part 150 and the circuit breaker 200 accommodated in the breaker accommodating part 150 may be cooled.

The heat dissipation member 400 extends in one direction, in a vertical direction in the illustrated embodiment. One side of the heat dissipation member 400 facing the circuit breaker 200 is in contact with the circuit breaker 200 and the bus bar assembly 300 . The other side opposite to the circuit breaker 200 extends so that an end thereof is exposed to the outside of the housing 100 .

The heat dissipation member 400 may be formed of a material having high thermal conductivity. In an embodiment, the heat dissipation member 400 may be formed of a copper material.

The inside of the heat dissipation member 400 , specifically, the inside of the extension 420 may be formed to have a structure advantageous for heat transfer. In an embodiment, the inside of the heat dissipation member 400 may be formed in a wick structure.

A plurality of heat dissipation members 400 may be provided. The plurality of heat dissipation members 400 may be coupled to each sub-bus bar 320 . In the illustrated embodiment, a total of three heat dissipation members 400 are provided and are respectively coupled to the first to third sub-bus bars 321 , 322 , and 323 .

As will be described later, the distribution board 10 according to another embodiment of the present invention may further include a heat dissipation member 600 . In the above embodiment, the heat dissipation member 600 may be coupled to the first and second main bus bars 311 and 312 , respectively. A detailed description thereof will be provided later.

In the illustrated embodiment, the heat dissipation member 400 includes a body portion 410 and an extension portion 420 .

The body portion 410 is a portion to which the heat dissipation member 400 is coupled to the sub-bus bar 320 . The body portion 410 may be defined as one side positioned adjacent to the circuit breaker 200 among the portions of the heat dissipation member 400 .

The body 410 is coupled to the sub-bus bar 320 . Specifically, the body 410 is accommodated in a space formed between the first plate 320a and the second plate 320b of the sub-bus bar 320 .

Each surface of the body portion 410 facing the first plate 320a and the second plate 320b may be in contact with the first plate 320a and the second plate 320b, respectively.

In the illustrated embodiment, the body portion 410 is formed to have a length in the left-right direction longer than the length in the front-back direction, and has a rectangular prism shape having a predetermined height. Due to the above shape, the body portion 410 can reliably contact the first plate 320a and the second plate 320b of the sub-bus bar 320 .

Accordingly, the heat generated by the circuit breaker 200 may be effectively transferred to the body portion 410 . Accordingly, the circuit breaker 200 can be effectively dissipated.

The shape of the body part 410 may be any shape that can increase the contact area between the heat dissipation member 400 and the sub-bus bar 320 by contacting the first plate 320a and the second plate 320b. can

In an embodiment not shown, the body part 410 may be directly coupled to each of the fixed terminal parts 220 and 230 . In the above embodiment, since the heat generated by the circuit breaker 200 is directly transferred to the body part 410 , the heat transfer efficiency between each of the fixed terminal parts 220 and 230 and the body part 410 may be improved.

A coupling hole 411 is formed inside the body portion 410 .

A fastening member (not shown) for coupling the body portion 410 and the sub-bus bar 320 is fastened to the coupling hole 411 . In an embodiment, the fastening member (not shown) may be provided as a screw member or a rivet member.

The coupling hole 411 is formed penetrating in the direction toward the cover 110 and the direction away from the cover 110 , in the front-rear direction in the illustrated embodiment.

A plurality of coupling holes 411 may be formed. The plurality of coupling holes 411 may be disposed to be spaced apart from each other. In the illustrated embodiment, two coupling holes 411 are formed and may be disposed to be spaced apart from each other in the left and right directions.

The coupling hole 411 may be formed at any position that can be aligned with the sub through hole 320c formed through the first plate 320a of the sub bus bar 320 . In one embodiment, the coupling hole 411 may be formed in a circular cross-section having the same central axis and diameter as the sub-through hole 320c.

That is, the number and positions of the coupling holes 411 may be changed according to the number and positions of the sub-through holes 320c penetrating through the first plate 320a.

As described above, the sub through-hole 320c of the first plate 320a may be formed and disposed to have the same central axis and diameter as the through-holes formed in the fixed terminal units 220 and 230 .

Accordingly, the coupling hole 411 , the sub through hole 320c , and the through holes formed in the fixed terminal units 220 and 230 may be formed and disposed to have the same central axis and diameter.

Accordingly, when the fastening member (not shown) is fastened to the coupling hole 411 , the sub through hole 320c and the through hole formed in the fixed terminal parts 220 and 230 , the heat dissipation member 400 and the sub bus bar 320 . and fixed terminal units 220 and 230 may be coupled to each other.

The extension 420 extends from one side of the body 410 facing the second plate 320b, or in other words, from one side of the body 410 opposite to the circuit breaker 200 .

The extension part 420 receives heat generated from the circuit breaker 200 and transferred to the body part 410 . The transferred heat is moved along the extension 420 and moved to the outside of the housing 100 . Accordingly, the heat generated by the circuit breaker 200 and the heat inside the circuit breaker accommodating part 150 may be discharged to the outside of the housing 100 .

That is, the extension 420 functions as a kind of heat pipe.

The extension 420 extends in a direction away from the circuit breaker 200 from one side of the body 410 opposite to the circuit breaker 200 .

Specifically, the extension portion 420 of the heat dissipation member 400 coupled to the first sub-bus bar 321 extends from the upper surface of the body portion 410 toward the upper surface 130 .

The extension portion 420 of the heat dissipation member 400 coupled to the second and third sub-bus bars 322 and 323 extends from the lower surface of the body portion 410 toward the lower surface 140 .

The extension 420 is coupled to the heat dissipation through-hole 320d penetrating through the second plate 320b of the sub-bus bar 320 .

That is, the heat dissipation member 400 is coupled to the body 410 and the first plate 320a, and the extension 420 is coupled to the heat dissipation through hole 320d formed in the second plate 320b. Accordingly, the coupled heat dissipation member 400 may be stably maintained in the coupled state without fluctuation.

One end of the extension 420 opposite to the circuit breaker 200 penetrates the heat dissipation member through-hole 162 of the support member 160 and is exposed to the outside of the housing 100 .

Specifically, the upper end of the extension portion 420 coupled to the first sub-bus bar 321 penetrates the heat dissipation member through hole 162 of the support member 160 coupled to the upper surface 130 to form the housing 100 . exposed to the outside of

In addition, the lower end of the extension portion 420 coupled to the second and third sub-bus bars 322 and 323 penetrates through the heat dissipation member through-hole 162 of the support member 160 coupled to the lower surface 140 . It is exposed to the outside of the housing 100 .

That is, the heat transferred from the body portion 410 to the extension portion 420 moves along the extension portion 420 to an end exposed to the outside of the housing 100 . The transferred heat exchanges heat with air outside the housing 100 . Accordingly, the circuit breaker accommodating part 150 and the circuit breaker 200 may be cooled.

The extension portion 420 may extend through the heat dissipation member through hole 162 of the support member 160 on one side of the body portion 410 opposite to the circuit breaker 200 . In an embodiment, the length of the extension 420 may be 10 cm or more. The length of the extension part 420 may be changed according to the shape of the housing 100 and the position in which the circuit breaker 200 is disposed.

In the illustrated embodiment, the extension 420 is in the shape of a circular rod having a circular cross-section. The shape of the extension part 420 may be changed according to the shape of the heat dissipation through hole 320d.

A plurality of extension parts 420 may be provided. The plurality of extension parts 420 may be disposed to be spaced apart from each other. In the illustrated embodiment, a total of three extension parts 420 are provided, including a first extension part 421 , a second extension part 422 , and a third extension part 423 arranged from left to right.

The number and arrangement method of the extension parts 420 may be changed according to the number and arrangement method of the heat dissipation through-holes 320d provided in the second plate 320b of the sub-bus bar 320 .

4. Description of the heat dissipation member 500 according to another embodiment of the present invention

Referring to FIG. 18 , the distribution panel 10 according to another embodiment of the present invention includes a heat dissipation member 500 .

Compared with the distribution board 10 according to the above-described embodiment, the distribution board 10 according to the present embodiment has the following differences.

First, the heat dissipation member 500 according to the present embodiment includes a vertical extension 520 corresponding to the extension 420 of the heat dissipation member 400 according to the above-described embodiment.

In addition, the heat dissipation member 500 according to the present embodiment further includes a horizontal extension portion 530 extending in a horizontal direction from the vertical extension portion 520 in the left and right direction in the illustrated embodiment. Accordingly, a through hole through which the horizontal extension part 530 passes is further formed in the side surface 120 of the housing 100 .

In this case, the material and internal structure of the horizontal extension part 530 may be the same as those of the extension part 420 according to the above-described embodiment.

Except for the above differences, the distribution board 10 according to the present embodiment has the same structure and function as the distribution board 10 according to the above-described embodiment. Accordingly, in the following description, the difference between the distribution board 10 according to the present embodiment and the distribution board 10 according to the above-described embodiment will be mainly described.

First, a through hole through which the horizontal extension part 530 passes is formed in the side surface 120 of the housing 100 .

Specifically, the first side 121 and the second side 122 are each formed with a through hole through which the horizontal extension 530 passes. A plurality of the through holes may be formed. In the illustrated embodiment, two through holes are formed in the first side surface 121 and the second side surface 122 to be vertically spaced apart from each other.

The number and positions of the through holes may be changed according to the number and positions of the horizontal extension parts 530 .

In the illustrated embodiment, the through hole is formed to have a circular cross section. The shape of the through hole may be changed according to the shape of the horizontal extension part 530 .

When the horizontal extension 530 passes through the through hole, the through hole may be sealed. Accordingly, any communication between the circuit breaker accommodating part 150 and the outside of the housing 100 is blocked.

For sealing the through hole, a sealing member (not shown) formed of a material having elasticity, such as rubber, may be provided between the inner periphery of the through hole and the outer periphery of the horizontal extension part 530 .

In addition, the heat dissipation member 500 according to the present embodiment includes a body portion 510 , a vertical extension portion 520 , and a horizontal extension portion 530 .

The body part 510 has the same structure and function as the body part 410 according to the above-described embodiment. In addition, the vertical extension portion 520 has the same structure and function as the extension portion 420 according to the above-described embodiment.

The horizontal extension 530 extends from the vertical extension 520 . The horizontal extension 530 extends at a predetermined angle with the vertical extension 520 . In the illustrated embodiment, the horizontal extension 530 extends perpendicular to the vertical extension 520 .

The horizontal extension portion 530 is continuous with the vertical extension portion 520 positioned outside the vertical extension portion 520 .

That is, in the illustrated embodiment, the horizontal extension part 530 provided on the heat dissipation member 500 positioned on the upper side includes the vertical extension part 520 positioned on the leftmost side and the vertical extension part 520 positioned on the rightmost part. ) and, respectively.

In addition, the horizontal extension part 530 provided in the heat dissipation member 500 positioned on the lower left side is continuous with the vertical extension part 520 positioned on the leftmost part. Similarly, the horizontal extension 530 provided in the heat dissipation member 500 located on the lower right side is continuous with the vertical extension portion 520 located on the rightmost side.

With the above structure, the arrangement of the circuit breaker 200 , the bus bar assembly 300 , and the heat dissipation member 500 accommodated in the circuit breaker accommodating part 150 can be made simply.

The horizontal extension part 530 may extend toward the side surface 120 . In the illustrated embodiment, the horizontal extension 530 extending to the left extends toward the first side 121 . Also, the horizontal extension 530 extending to the right extends toward the second side surface 122 .

Accordingly, the heat dissipation member 500 according to the present exemplary embodiment may exchange heat with the outside of the housing 100 at more positions than the heat dissipation member 400 according to the above-described exemplary embodiment. Accordingly, the cooling effect of the circuit breaker accommodating part 150 and the circuit breaker 200 may be further improved.

5. Description of the heat dissipation member 600 according to another embodiment of the present invention

Referring to FIG. 19 , a distribution board 10 according to another embodiment of the present invention is shown.

Compared with the distribution board 10 according to the above-described embodiment, the distribution board 10 according to the present embodiment has the following differences.

First, the heat dissipation member 600 according to the present embodiment is coupled to the main bus bar 310 rather than the sub bus bar 320 . In the illustrated embodiment, two heat dissipation members 600 are provided and are respectively coupled to the first main bus bar 311 and the second main bus bar 312 .

In addition, the heat dissipation member 600 according to the present exemplary embodiment extends toward the upper surface 130 so that an upper end thereof is exposed to the outside of the housing 100 . Accordingly, the heat dissipation member through-hole 162 is additionally formed in the support member 160 coupled to the upper surface 130 .

In this case, the material and internal structure of the heat dissipation member 600 may be the same as the heat dissipation members 400 and 500 according to the above-described embodiment. In addition, the heat dissipating member 600 according to the present embodiment may be provided alone or together with each of the heat dissipating members 400 and 500 according to the above-described embodiment.

Except for the above differences, the distribution board 10 according to the present embodiment has the same structure and function as the distribution board 10 according to the above-described embodiment. Accordingly, in the following description, the difference between the distribution board 10 according to the present embodiment and the distribution board 10 according to the above-described embodiment will be mainly described.

First, a heat dissipation member through hole 162 is additionally formed in the support member 160 coupled to the upper surface 130 of the housing 100 . In this case, the additionally formed heat dissipation member through-hole 162 may be located adjacent to each bus bar through-hole 161 .

That is, the extended portion 620 of the heat dissipation member 600 coupled to the main bus bar 310 passes through the additionally formed heat dissipation member through hole 162 .

In the illustrated embodiment, two additional heat dissipation member through-holes 162 are formed and are spaced apart from each other. The number and positions of the additionally formed heat dissipation member through-holes 162 may be changed according to the number and positions of the extension parts 620 .

For sealing the heat dissipation member through-hole 162, a sealing member (not shown) formed of a material having elasticity, such as rubber, may be provided between the inner periphery of the heat dissipating member through-hole 162 and the outer periphery of the extension 620 . .

In addition, the heat dissipation member 600 according to the present embodiment includes a body portion 610 and an extension portion 620 .

The body part 610 has the same structure and function as the body parts 410 and 510 according to the above-described embodiment, except that the body part 610 according to the present embodiment is coupled to the main bus bar 310 . There is a difference from the body parts 410 and 510 according to the above-described embodiment.

In the illustrated embodiment, the body portion 610 is coupled to the first main bus bar 311 and the second main bus bar 312, respectively. For the coupling, a fastening member (not shown) such as a screw member may be provided.

The extension 620 has the same structure and function as the extension 420 according to the above-described embodiment. However, there is a difference in that the extension part 620 according to the present embodiment is through-coupled to the heat dissipation member through-hole 162 that is additionally formed.

The distribution board 10 according to the present embodiment may directly transmit the heat generated by the circuit breaker 200 to the outside of the housing 100 through the heat dissipation member 600 connected to the main bus bar 310 . In addition, when provided together with the heat dissipation member 400 according to the above-described embodiment, the heat generated by the circuit breaker 200 is directly transferred to the housing 100 through the heat dissipation member 400 connected through the sub-bus bar 320 . can be transmitted externally.

Accordingly, the heat dissipation member 600 according to the present exemplary embodiment may exchange heat with the outside of the housing 100 at more positions than the heat dissipation member 400 according to the above-described exemplary embodiment. Accordingly, the cooling effect of the circuit breaker accommodating part 150 and the circuit breaker 200 may be improved.

Although the above has been described with reference to the preferred embodiment of the present invention, those of ordinary skill in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention described in the claims below. You will understand that you can.

10: distribution board
100: housing
110: cover
120: side
121: first side
122: second side
130: upper surface
131: upper opening
140: if
141: lower opening
150: breaker receiving unit
160: support member
161: bus bar through hole
162: heat dissipation member through hole
163: fastener
200: breaker
210: breaker body
220: upper fixed terminal part
221: first fixed terminal
222: second fixed terminal
223: third fixed terminal
224: fourth fixed terminal
230: lower fixed terminal part
231: first fixed terminal
232: second fixed terminal
233: third fixed terminal
234: fourth fixed terminal
240: support plate
300: bus bar assembly
310: main bus bar
310a: plate part
310b: main through hole
311: first main bus bar
312: second main bus bar
320: sub bus bar
320a: first plate
320b: second plate
320c: sub through hole
320d: heat dissipation through hole
321: first sub-bus bar
322: second sub-bus bar
323: third sub-bus bar
400: Heat dissipation member according to an embodiment
410: body part
411: coupling hole
420: extension
421: first extension
422: second extension
423: third extension
500: heat dissipation member according to another embodiment
510: body portion
520: vertical extension
530: horizontal extension
600: heat dissipation member according to another embodiment
610: body part
620: extension

Claims (14)

a housing having a space formed therein;
a circuit breaker accommodated in the space of the housing;
a bus bar assembly for electrically connecting the circuit breaker and the outside of the housing; and
a heat dissipation member coupled to the bus bar assembly to dissipate heat generated by the circuit breaker;
The heat dissipation member,
a body portion coupled to the bus bar assembly; and
Extending from the body portion toward the outside of the housing, the end comprising an extension portion exposed to the outside of the housing,
division board. According to claim 1,
the circuit breaker,
a circuit breaker body forming an outer shape of the circuit breaker; and
and a fixed terminal part exposed to the outside of the circuit breaker body and to which the bus bar assembly is coupled.
division board. 3. The method of claim 2,
The fixed terminal part,
It includes a plurality of fixed terminals spaced apart from each other and arranged side by side,
The bus bar assembly,
coupled to any one or more of the plurality of fixed terminals,
division board. 4. The method of claim 3,
The bus bar assembly,
a sub-bus bar coupled to two fixed terminals positioned adjacent to each other among the plurality of fixed terminals; and
Comprising a main bus bar coupled to the other fixed terminal of the plurality of fixed terminals,
division board. 5. The method of claim 4,
The sub-bus bar,
a first plate coupled to the two fixed terminals; and
and a second plate extending at a predetermined angle with the first plate,
The body portion of the heat dissipation member,
It is positioned adjacent to each of the first plate and the second plate, and is disposed to be surrounded by the first plate and the second plate,
The extension portion of the heat dissipation member,
Penetrating through the second plate and extending toward the outside of the housing,
division board. According to claim 1,
The housing is
an upper surface covering the space from the upper side and having an upper opening formed therein to communicate with the outside; and
and a support member coupled to the upper surface so as to cover the upper opening from the outside of the upper surface,
The support member is
a bus bar through hole through which the bus bar assembly is coupled; and
and a heat dissipation member through-hole through which the extended portion of the heat dissipation member is coupled through,
division board. 7. The method of claim 6,
A plurality of the extension portions are provided, and the plurality of extension portions are disposed to be spaced apart from each other,
A plurality of the heat dissipation member through-holes are formed, and the plurality of extension portions are respectively penetrated and coupled to the plurality of heat dissipation member through-holes,
division board. 7. The method of claim 6,
the circuit breaker,
a circuit breaker body forming an outer shape of the circuit breaker; and
It extends toward the upper surface and is exposed to the outside of the circuit breaker body, the bus bar assembly is coupled, and a plurality of fixed terminals are provided and are spaced apart from each other and arranged in parallel;
The bus bar assembly,
a main bus bar energably coupled to a pair of the fixed terminals disposed at the outermost of the plurality of fixed terminals; and
and a sub-bus bar energably coupled to another fixed terminal positioned between a pair of the fixed terminals among a plurality of the fixed terminals,
division board. 9. The method of claim 8,
The body portion of the heat dissipation member is coupled to the sub-bus bar,
The extension portion of the heat dissipation member extends toward the upper surface,
division board. According to claim 1,
The housing is
a lower surface covering the space from the lower side and having a lower opening formed therein to communicate with the outside; and
and a support member coupled to the lower surface to cover the lower opening from the outside of the lower surface;
The support member is
a bus bar through hole through which the bus bar assembly is coupled; and
and a heat dissipation member through-hole through which the extended portion of the heat dissipation member is coupled through,
division board. 11. The method of claim 10,
the circuit breaker,
a circuit breaker body forming an outer shape of the circuit breaker; and
It extends toward the lower surface and is exposed to the outside of the circuit breaker body, the bus bar assembly is coupled, and a plurality of fixed terminals are provided and are spaced apart from each other and arranged in parallel;
The bus bar assembly,
a plurality of sub-bus bars respectively energably coupled to a pair of the fixed terminals disposed adjacent to each other among the plurality of fixed terminals;
division board. 12. The method of claim 11,
The body portion of the heat dissipation member is coupled to each of the plurality of bus bars,
The extension portion of the heat dissipation member extends toward the lower surface,
division board. a housing having a space formed therein;
a circuit breaker accommodated in the space of the housing;
a bus bar assembly extending from the circuit breaker to the outside of the housing and electrically connecting the circuit breaker and the outside of the housing; and
a heat dissipation member coupled to the bus bar assembly to dissipate heat generated by the circuit breaker;
The heat dissipation member,
a body portion positioned adjacent to the circuit breaker and coupled to the bus bar assembly;
a vertical extension portion extending from the body portion toward the outside of the housing in the same direction as the bus bar assembly; and
Continuous with the vertical extension, comprising a horizontal extension extending to the outside of the housing while forming a predetermined angle with the vertical extension,
division board. a housing having a space formed therein;
a circuit breaker accommodated in the space of the housing;
a main bus bar extending from the breaker to the outside of the housing and energably connecting the breaker and the outside of the housing; and
a heat dissipation member coupled to the main bus bar to dissipate heat generated by the circuit breaker;
The heat dissipation member,
a body portion positioned adjacent to the circuit breaker and coupled to the main bus bar; and
Including an extension portion extending from the body portion toward the outside of the housing in the same direction as the main bus bar,
division board.

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