KR102625270B1 - Power Distribution Apparatus - Google Patents

Abstract

The power distribution device of the present invention includes a case including a front panel that opens and closes; An installation panel that divides the inside of the case into a front space and a rear space; A first bus bar disposed in the left and right directions in the rear space; A second bus bar disposed in the rear space in a vertical direction, one end of which is connected to the first bus bar, and the other end of which protrudes into the front space; a third busbar disposed in the vertical direction in the rear space, both ends of which protrude into the front space, and one end of the first busbar connected to the first busbar; And a fourth bus bar disposed in the vertical direction in the rear space, one end of which is connected to the other end of the first bus bar and the other end of which protrudes into the front space. The installation panel is a portion of the bus bar that protrudes into the front space. can be formed to minimize, and the busbar protruding into the front space is connected to the first and second circuit breakers, which are electrically connected to an external power source, and the first and second terminal blocks, which are electrically connected to an external load, respectively. Therefore, wires can be introduced into the power distribution device space-efficiently without interfering with each other, and electric shock can be prevented by hiding the busbar from the front where the user approaches.

Description

Power Distribution Apparatus

The present invention relates to a power distribution device, and more specifically, to a power distribution device including a busbar that can improve the space efficiency of the power distribution device.

A power distribution device is a device that distributes and supplies power applied from the outside, including control devices such as various circuit breakers and relays. Power distribution devices play a role not only in general household distribution boards, but also in smart grids that use renewable energy sources and/or energy storage systems (ESS) as power sources in connection with the general power system. This is becoming important.

At this time, bus bars, which are the electrical medium of the conductor, have higher transmission efficiency than cables of the same volume, and are therefore actively used in power distribution devices that require high-capacity transmission.

However, in the conventional power distribution device, similar to the distribution board of Patent Publication No. 10-2004-0087631, the busbar connecting a plurality of circuit breakers was arranged in a way that it was exposed to the outside when the distribution board was opened.

Therefore, there was a problem in that workers were exposed to the risk of electric shock when initially installing or managing the power distribution device after installation.

Meanwhile, as the amount of power transmitted by the power distribution device increases, the thickness of the wire leading into the power distribution device needs to be thicker. Thicker wire cables are difficult to curve in narrow spaces due to their low flexibility, increasing the volume of the power distribution device enclosure.

The conventional power distribution device, similar to Public Utility Model Publication No. 20-2021-0002256, was configured in a form where the wires were curved and inserted.

Therefore, when the number of external power sources or loads connected to the power distribution device increases, or the amount of power flowing into the power distribution device increases, the volume of the power distribution device enclosure increases as the wires inside the power distribution device curve. There was a growing problem.

In addition, the conventional power distribution device accommodates a wireless communication device in the power distribution device and operates the power distribution device through a wireless communication terminal, and when wireless communication is not possible due to problems such as the lack of a communication network or terminal, the power distribution device There was a problem that operation of was impossible.

The problem to be solved by the present invention is to provide a power distribution device that can prevent an increase in the volume of the case due to the curve of the wire entering the power distribution device.

Another problem to be solved by the present invention is to provide a power distribution device that can protect the user from electric shock by arranging the busbar accommodated inside the power distribution device to be hidden from the side where the user approaches.

Another problem that the present invention aims to solve is to provide a power distribution device that can prevent the risk of short circuit by preventing interference of wires entering the power distribution device.

Another problem that the present invention aims to solve is to provide a power distribution device that protects users from the risk of electric shock and improves convenience of use by allowing users to operate the equipment housed inside without disassembling the enclosure. It's in the thing.

Another problem that the present invention aims to solve is to provide a power distribution device that can improve the usability of the power distribution device by allowing the circuit breaker to be easily expanded in response to the expansion of external power sources connected to the power distribution device. It's in doing.

Another problem that the present invention aims to solve is to provide a power distribution device that can improve the usability of the power distribution device by enabling monitoring and operation of the power distribution device even in environmental conditions where wireless communication modules cannot be used. .

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, a power distribution device according to an embodiment of the present invention includes a case including a front panel that opens and closes; An installation panel that divides the inside of the case into a front space and a rear space; A pair of first bus bars arranged in the left and right directions in the rear space; A pair of second bus bars arranged in the vertical direction in the rear space, one end of which is connected to the first bus bar and the other end of which protrudes into the front space; A pair of third bus bars arranged in the vertical direction in the rear space, one end of the lower side and the other end of the upper side protruding into the front space, and one end of the first bus bar connected to each other; And a pair of fourth bus bars arranged in the vertical direction in the rear space, one end of which is connected to the other end of the first bus bar and the other end of which protrudes into the front space, wherein the installation panel is a booth bar that protrudes into the front space. The bar area can be formed to be minimized, and the bus bars protruding into the front space are respectively the first and second circuit breakers that are electrically connected to an external power source, and the first and second terminals that are electrically connected to the external load. Can be connected to blocks.

Therefore, the shape of the busbar is configured so that the internal components of the power distribution device can be arranged to be spaced left and right from each other even in a limited space, so that the wires connected to the internal components of the power distribution device do not interfere with each other and are space efficient. It is possible to prevent the risk of electric shock caused by the busbar by hiding the busbar from the front where the user approaches and placing it in the rear space, and by exposing only the minimum part that will be connected to the internal components of the power distribution device to the front. there is.

The other end of the fourth busbar and one end of the third busbar of the power distribution device according to an embodiment of the present invention extend downward and can be connected to the first terminal block and the second terminal block, respectively, and the second busbar The other end and the other end of the third busbar may be bent to pass over the top of the main panel in the forward direction and be connected to the first breaker and the second breaker, respectively.

Therefore, the first breaker and the second breaker are arranged forward and forward from the first terminal block and the second terminal block, so that the first breaker and the first terminal block are arranged adjacent to each other in the vertical direction, and the second breaker and the second terminal block are arranged adjacent to each other in the vertical direction. 2 Even if the terminal blocks are placed adjacent to each other in the vertical direction, the wires are introduced in a straight line or close to a straight line within the power distribution device and do not interfere with each other, preventing the risk of short circuits within the power distribution device and preventing the curve of the wire ( It is possible to prevent an increase in the volume of the case due to the curve.

The case of the power distribution device according to an embodiment of the present invention includes a first opening hole on the lower side that is opened to correspond in the vertical direction to the first terminal block and through which electric wires are introduced; And it may further include a second opening hole on the lower side that is opened to correspond to the second terminal block in the vertical direction and through which an electric wire is introduced.

Therefore, the wires coming into the case of the power distribution device from the outside through the opening hole can be connected to the terminal block in a straight line or near a straight line, thereby preventing an increase in the volume of the case due to the curve of the wire.

The installation panel according to an embodiment of the present invention may be partially opened so that the manual switches of the first and second relays disposed in the rear space are exposed to the front.

Therefore, the convenience of the power distribution device can be improved by allowing the user to operate the relay without disassembling the installation panel, and the safety of the power distribution device can be improved by allowing the user to operate the relay without the risk of electric shock.

The first breaker and the second breaker of the power distribution device according to an embodiment of the present invention may each be arranged adjacent to the outer edge of the installation panel.

Therefore, by minimizing the area of the busbar exposed to the front space to be connected to the first and second circuit breakers, the user can be protected from electric shock.

A power distribution device according to an embodiment of the present invention includes a conductive panel to which the other end of the second busbar is connected; And it may further include an expansion terminal including a plurality of circuit breaker insertions protruding from the conductive panel, and the first circuit breaker may be provided in plural numbers corresponding to the external first power source and inserted into the circuit breaker insertion unit. .

Accordingly, the usability of the power distribution device can be improved by enabling simple response to expansion of the first power source.

The circuit breaker insertion portion of the power distribution device according to an embodiment of the present invention may be formed in plural numbers so that a plurality of first circuit breakers share adjacent sides.

Accordingly, the space efficiency of the power distribution device can be improved by allowing the plurality of first circuit breakers to be efficiently arranged without wasting space.

The power distribution device according to an embodiment of the present invention may further include a touch display that displays a menu for monitoring or manipulating the power distribution device, and the front panel may be opened to correspond to the touch display in the front and rear directions.

Therefore, compared to the case where the power distribution device can be operated and monitored only with a wireless communication module, the intuitiveness of monitoring and operation is improved by providing a touch display, and the power distribution device can be monitored and operated even in environmental conditions where the wireless communication module cannot be used. By doing so, the usability of the power distribution device can be improved.

The power distribution device according to an embodiment of the present invention may further include a reset switch capable of resetting the power distribution device and a storage port capable of transmitting an operation record of the power distribution device to an inserted removable storage device. , the front panel may be opened to correspond to the reset switch, the storage port, and the first and second circuit breakers in the front and rear directions.

Therefore, through the opening formed in the front panel, the user can use the reset switch and storage port housed inside the case without removing the front panel, improving the user's management convenience and protecting the user from electric shock. .

Specific details of other embodiments are included in the detailed description and drawings.

According to the power distribution device of the present invention, one or more of the following effects are achieved.

The power distribution device according to an embodiment of the present invention configures the shape of the busbar so that the internal components of the power distribution device can be arranged to be spaced apart in the left and right directions even in a limited space, and is connected to the internal components of the power distribution device. By ensuring that the wires can be introduced space-efficiently without interfering with each other, and by hiding the busbar from the front where the user approaches and placing it in the rear space, only the minimum part that will be connected to the internal components of the power distribution device is exposed to the front. , it can prevent the risk of electric shock caused by busbars.

The power distribution device according to an embodiment of the present invention arranges the first breaker and the second breaker forward from the first terminal block and the second terminal block, so that the first breaker and the first terminal block are arranged in a vertical line. Even if the second breaker and the second terminal block are arranged adjacent to each other in the vertical direction, the wires are introduced in a straight line or close to a straight line within the power distribution device and do not interfere with each other to prevent short circuits in the power distribution device. It can prevent risks and increase the volume of the case due to the curve of the wire.

The power distribution device according to an embodiment of the present invention has a plurality of terminal blocks arranged in the left and right directions and an opening hole formed on the same line in the vertical direction, so that the wire entering the case of the power distribution device from the outside is straight or straight. By allowing it to be connected to the terminal block in a form close to , it is possible to prevent an increase in the volume of the case due to the curve of the wire.

The power distribution device according to an embodiment of the present invention forms an opening in the installation panel to allow the user to operate the relay without disassembling the installation panel, thereby improving the convenience of the power distribution device and allowing the relay to be installed without the risk of electric shock. By allowing operation, the safety of the power distribution device can be improved.

The power distribution device according to an embodiment of the present invention arranges the first and second circuit breakers adjacent to the outside of the installation panel to minimize the area of the busbar exposed to the front space to be connected to the first and second circuit breakers, thereby allowing the user Can protect from electric shock.

The power distribution device according to an embodiment of the present invention can easily respond to expansion of the first power source by providing an expansion terminal, thereby improving the usability of the power distribution device.

The power distribution device according to an embodiment of the present invention improves the intuitiveness of monitoring and operation by providing a touch display, compared to the case where operation and monitoring of the power distribution device is possible only with a wireless communication module, and prevents the use of a wireless communication module. By enabling the power distribution device to be monitored and operated even under environmental conditions, the usability of the power distribution device can be improved.

The power distribution device according to an embodiment of the present invention allows the user to use the reset switch and storage port accommodated inside the case through an opening formed in the front panel without removing the front panel, thereby improving the user's management convenience. It can improve and protect users from electric shock.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a power distribution device according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of a power distribution device according to an embodiment of the present invention.
Figure 3 is a schematic diagram showing the electrical wiring of a power distribution device according to an embodiment of the present invention.
Figure 4 is a first perspective view of a busbar to which a relay is fastened according to an embodiment of the present invention.
Figure 5 is a second perspective view of a busbar to which a relay is fastened according to an embodiment of the present invention.
Figure 6 is a first perspective view of an installation panel according to an embodiment of the present invention.
Figure 7 is a second perspective view of an installation panel according to an embodiment of the present invention.
Figure 8 is a rear view of an installation panel according to an embodiment of the present invention.
Figure 9 is a front view of an installation panel to which a busbar is fastened according to an embodiment of the present invention.
Figure 10 is a rear view of an installation panel to which a busbar is fastened according to an embodiment of the present invention.
Figure 11 is a perspective view of an installation panel to which a busbar, an expansion terminal, and a terminal block are fastened according to an embodiment of the present invention.
Figure 12 is a rear view of an installation panel to which a busbar, an expansion terminal, and a terminal block are fastened according to an embodiment of the present invention.
Figure 13 is a perspective view of the power distribution device according to an embodiment of the present invention with the case removed.
Figure 14 is a schematic diagram showing a state in which wires are connected to a power distribution device according to an embodiment of the present invention.
Figure 15 is a front view of an expansion terminal to which a plurality of first circuit breakers are connected according to an embodiment of the present invention.
Figure 16 is a front view of the door of the power distribution device according to an embodiment of the present invention opened.

Hereinafter, the present invention will be described in detail with reference to the drawings. In the drawings, parts not related to the description are omitted in order to clearly and briefly explain the present invention, and identical or extremely similar parts are denoted by the same drawing reference numerals throughout the specification.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Additionally, in this specification, terms such as first and second may be used to describe various elements, but these elements are not limited by these terms. These terms may be used only to distinguish one element from another.

Electricity, especially alternating current, flows simultaneously throughout the entire closed circuit. However, for convenience, it will be explained below on the premise that electricity is supplied or received sequentially between specific power sources or components or elements.

Based on the general flow of current, the 'upstream' can be referred to as the 'front end', and the 'downstream' can be referred to as the rear end. In addition, in the case of the 1-1 power source 100a, which will be described later, it can not only supply electricity but also receive electricity, but it will be described as 'upstream, front, downstream, and rear' based on the case of supplying electricity. .

Hereinafter, ‘converter’ refers to ‘electric circuit’.

Hereinafter, according to the direction indicated in the drawing, the 'U' direction is upward or upward, the 'D' direction is downward or downward, the 'F' direction is forward, the 'R' direction is backward or backward, and the 'Ri' direction is right. Room or right, the 'Le' direction can be referred to as left room or left. However, the direction indicator may be mentioned differently depending on the standard.

Hereinafter, 'connected' may include not only directly connected, but also indirectly connected.

Hereinafter, it is natural that all electrical components can be formed as a pair to form a closed circuit through which current flows.

Hereinafter, for example, it is natural that the figure number '2' may include '2a', '2b', '2c', '2d', '2e', '2f', and '2g'. For example, it goes without saying that the number '2b' can include '2ba', '2bb', '2bc', '2bd', '2be', '2bf', and '2bg'.

Hereinafter, with reference to FIGS. 1 and 2, the case 2 and internal configuration of the power distribution device 1 will be briefly described.

Case 2 includes a door 2a, a front panel 2b, a rear panel 2c formed to face the front panel 2b, and a left end of the front panel 2b and the rear panel 2c. Left side panel (2f), right side panel (2g) connecting the right end of the front panel (2b) and the rear panel (2c), top panel (2d) connecting the top of the front panel (2b) and the rear panel (2c) ), and a bottom panel (2e) connecting the bottom of the front panel (2b) and the rear panel (2c).

The door 2a is connected to the front end of the side panel by a hinge and can be opened and closed by rotating. The door 2a may be placed in front of the front panel 2b. The door 2a may be arranged to face the front panel 2b in the front-to-back direction.

The case (2) may have a wireless communication module (3) coupled to one side. For example, the wireless communication module 3 may be coupled to the left side panel 2f.

A wireless communication circuit board (not shown) may be provided inside the wireless communication module 3.

The wireless communication module (3) is connected to a communication network external to the control unit (4) and the power distribution device (1), transmits monitoring information about the power distribution device (1) to the user's wireless communication terminal, and distributes the user's power. The device (1) can receive operation commands and transmit them to the control unit (4).

The case 2 may have at least one opening hole through which an electric wire is introduced. The opening hole formed in the case 2 will be described later with reference to FIG. 14.

The front panel 2b may be formed to be openable and closed. For example, it can be fastened to the front panel first fastening part 2bf and the front panel second fastening part 2bg formed in the case 2, and can be detached again. For example, the front panel first fastening portion 2bf may be structured for bolt fastening. For example, the second fastening portion 2bg of the front panel may have a structure for hook fastening. (see Figure 16)

A detailed description of the shape of the front panel 2b will be described later with reference to FIG. 16.

The installation panel 20 is disposed inside the case 2 to face the front panel 2b, so that the inside of the case 2 can be divided into a front space and a rear space.

In other words, the rear space may be defined as the rear portion of the installation panel 20 among the internal space of the case 2. Additionally, the front space may be defined as the front portion of the installation panel 20 among the internal spaces of the case 2.

The installation panel 20 may be fastened to and fixed to the case 2. A detailed description of the installation panel 20 and other components fastened to the installation panel 20 will be described later.

The power distribution device 1 may further include a touch display 80 that displays a menu for monitoring or manipulating the power distribution device 1.

The touch display 80 may be electrically connected to the main PCB 4a.

The touch display 80 can visually display the operation record and operating status of the power distribution device 1. For example, the touch display 80 may display the amount of power supplied from the first power source and the second power source, and may display the amount of power supplied to the commercial load and the emergency load.

The touch display 80 allows the user to manipulate the initial settings and operating method of the power distribution device 1 through touch manipulation. For example, the user can operate the touch display 80 to set the amount of power to be supplied from each of the 1-1 power source, 1-2 power source, and 2nd power source to vary depending on the time zone.

The touch display 80 may be coupled to the display bracket 81 and placed so that the screen faces forward.

The display bracket 81 can be fastened to the PCB bracket 5.

The PCB bracket (5) can be fastened to the installation panel (20). For example, the PCB bracket 5 may be fastened across the fifth area 20aa and sixth area 20ab of the upper panel 20a, which will be described later.

Therefore, compared to the case where the power distribution device 1 can be operated and monitored only with the wireless communication module 3, the intuitiveness of monitoring and operation is improved by providing the touch display 80, and the use of the wireless communication module 3 The usability of the power distribution device 1 can be improved by enabling the power distribution device 1 to be monitored and operated even in environmental conditions that do not allow this.

The control unit 4 may be implemented on the main PCB 4a and/or the sub PCB 4b. The control unit 4 may refer to the main PCB 4a and/or the sub PCB 4b.

The control unit 4 includes components within the power distribution device 1 (e.g., first to third CT sensors 40c, first and second relays, first and second circuit breakers, wireless communication module 3, It can be electrically connected to the electric meter 104, touch display 80, reset switch 70, and storage port 71).

The control unit 4 controls the detection values of the first to third CT sensors 40c, the user's operation settings of the power distribution device 1, the power supply status of the power source, and the power supply unit cost of the second power source 101. , the first breaker 30, the second breaker 31, the first relay 10, and the second relay 11 can be controlled to open or close, respectively, depending on the required power status of the load.

The main PCB (4a) is a printed circuit board, and can be placed and fastened between the display bracket (81) and the PCB bracket (5).

The sub-PCB 4b is a printed circuit board and can be fastened to the rear of the installation panel 20. For example, the sub-PCB 4b may be fastened to the rear of the fifth area 20aa of the upper panel 20a, which will be described later. (See Figure 12) The sub-PCB (4b) may be electrically connected to the main PCB (4a).

Hereinafter, with reference to FIG. 3, the electrical wiring of the power distribution device 1 will be described.

There may be a plurality of first power sources 100.

For example, the first power source 100 may include a 1-1 power source 100a and a 1-2 power source 100b.

For example, the 1-1 power source 100a may be an energy storage system (ESS).

At this time, the 1-1 power source 100a may be discharged by supplying electricity to the power distribution device 1, or may be charged by receiving electricity from the power distribution device 1.

The first-second power source 100b may be a renewable energy source. For example, the first and second power sources 100b may be solar power modules (PV, photovoltaics).

The first-second power source 100b can supply electricity to the power distribution device 1.

The second power source 101 may be a general power system (eg, KEPCO).

The electricity meter 104 is disposed at the rear of the second power source 101 and can measure the amount of power supplied from the second power source 101. For example, the electricity meter 104 may be external to the power distribution device 1 .

The commercial load 102 is a load of a commercial facility that receives electricity in general cases, not in emergencies such as power outages. For example, commercial load 102 may include indoor home appliances.

The emergency load 103 is a load of an emergency facility that receives electricity in an emergency such as a power outage. For example, the emergency load 103 may include an indoor refrigerator and a light.

The first circuit breaker 30 can open and close the electric circuit connected to the first power source 100.

The first circuit breaker 30 may be formed in plural pieces. For example, the first breaker 30 may include a 1-1 breaker 30a and a 1-2 breaker 30b.

The 1-1 circuit breaker (30a) can open and close the circuit connected to the 1-1 power source (100a).

The 1-1 circuit breaker (30a) can ensure that electricity supplied from the 1-1 power source (100a) is supplied to the commercial load (102). At this time, electricity supplied to the commercial load 102 may be blocked by the first relay 10.

The 1-1 circuit breaker (30a) can ensure that electricity supplied from the 1-1 power source (100a) is supplied to the emergency load (103). At this time, electricity supplied to the emergency load 103 may be blocked by the second relay 11.

The 1-1 circuit breaker 30a may allow electricity supplied from the 1-2 power source 100b and/or the second power source 101 to be supplied to the 1-1 power source 100a. At this time, electricity supplied from the 1-2 power source 100b may be blocked by the 1-2 breaker 30b. At this time, electricity supplied from the second power source 101 may be blocked by the second breaker 31 or the second relay 11.

When the 1-1 breaker (30a) receives electricity from the 1-1 power source (100a), the 1-1 power source (100a) may be discharged.

When the 1-1 breaker (30a) supplies electricity to the 1-1 power source (100a), the 1-1 power source (100a) can be charged.

The first-second circuit breaker (30b) can open and close the circuit connected to the first-second power source (100b).

The 1-2 breaker (30b) may allow electricity supplied from the 1-2 power source (100b) to be supplied to the 1-1 power source (100a). At this time, electricity supplied to the 1-1 power source 100a may be blocked by the 1-1 breaker 30a.

The first-second circuit breaker (30b) may allow electricity supplied from the first-second power source (100b) to be supplied to the commercial load (102). At this time, electricity supplied to the commercial load 102 may be blocked by the first relay 10.

The first-second circuit breaker (30b) may allow electricity supplied from the first-second power source (100b) to be supplied to the emergency load (103). At this time, electricity supplied to the emergency load 103 may be blocked by the second relay 11.

The second circuit breaker 31 can open and close the electric circuit connected to the second power source 101.

The second circuit breaker 31 can ensure that electricity supplied from the second power source 101 is supplied to the emergency load 103.

The second circuit breaker 31 can ensure that electricity supplied from the second power source 101 is supplied to the commercial load 102. At this time, electricity supplied to the second power source 101 may be blocked by the second relay 11 or the first relay 10.

The second breaker 31 may allow electricity supplied from the second power source 101 to be supplied to the 1-1 power source 100a. At this time, electricity supplied to the 1-1 power source 100a may be blocked by the second relay 11 or the 1-1 breaker 30a.

Description of other circuit breakers will be described later with reference to FIG. 13.

The first relay 10 can open and close the electric circuit at the position where it is placed.

The first relay 10 may be disposed downstream of a point where the electric path connecting the first circuit breaker 30 and the commercial load 102 branches.

The second relay 11 can open and close the electric circuit at the positioned position.

The second relay 11 is located at the point where the line connected to the commercial load 102 branches out of the line connecting the first breaker 30 and the emergency load 103 and the line connected to the second breaker 31. It can be placed between the branching points.

Description of other relays will be described later with reference to FIG. 4.

The power distribution device 1 may include a CT sensor (Current Transformer), which is an overcurrent detection sensor for detecting a current exceeding the maximum allowable current of a busbar or converter.

CT sensors may be arranged as a pair corresponding to a pair of busbars constituting the converter. The CT sensor may include first to third CT sensors 40c.

The first CT sensor 40a can measure electricity flowing in the electric circuit at the deployed location.

The first CT sensor 40a may be placed upstream of a point where the electric path connecting the first circuit breaker 30 and the commercial load 102 branches. That is, the first CT sensor 40a may be placed on the second busbar 7.

The second CT sensor 40b can measure the electricity flowing in the electric circuit at the deployed location.

The second CT sensor 40b may be placed upstream of a point where the electric path connected to the commercial load 102 branches out of the electric path connecting the second circuit breaker 31 and the emergency load 103. That is, the second CT sensor 40b may be placed on the third busbar 8. (see Figure 12)

The third CT sensor 40c can measure the electricity flowing in the electric circuit at the deployed location.

The third CT sensor 40c may be placed in the electric path connecting the 1-2 power source 100b and the 1-2 breaker 30b.

Hereinafter, the shape and electrical connection relationship of the busbar will be described with reference to FIGS. 4 and 5.

Busbars may be composed of a pair to form a converter (electrical circuit). In other words, the busbar can form a converter. Hereinafter, unless otherwise stated, each busbar may be described on the assumption that it is a pair.

The busbar may be a conductive metal member in the form of a bar that is formed so that the length is greater than the width. A pair of busbars may have bar-shaped metal members arranged parallel to each other.

Since the connection of busbars requires surface contact, the part connecting busbars can be bent as needed.

The connection between busbars, the connection between contact bars and busbars, and the connection between busbars and other parts of the power distribution device 1 may mean fastening with bolts through bolt holes formed in the surface contact portion.

The first busbar 6 can be arranged in the left and right directions in the rear space. The first busbar 6 may be formed as a pair.

The first busbar 6 may be disposed adjacent to the rear of the installation panel 20.

The second busbar 7 may be arranged in the vertical direction in the rear space. The second busbar 7 may be formed as a pair.

One end (7a) of the second busbar may be connected to the first busbar (6). At this time, the second busbar 7 may be formed to extend upward from the first busbar 6. That is, the second busbar 7 may be formed to extend upward from one end connected to the first busbar 6.

The other end 7b of the second busbar may protrude into the front space. For example, the other end 7b of the second busbar may protrude into the front space through the installation panel 20.

Alternatively, for example, the other end 7b of the second busbar may be bent to go over the outer edge of the installation panel 20 and protrude into the front space.

At this time, when the second busbar 7 is formed to extend upward from the first busbar 6, the other end 7b of the second busbar passes over the top of the installation panel 20 in the forward direction. It may be bent and protrude into the anterior space.

The other end (7b) of the second busbar may be connected to the first circuit breaker 30, which will be described later.

The third busbar 8 may be arranged in the vertical direction in the rear space. The third busbar 8 may be formed as a pair.

As for the third bus bar 8, one lower end and the other upper end may protrude into the front space.

For example, one end 8a of the third busbar may protrude into the front space through the installation panel 20. For example, one end 8a of the third busbar may extend downward while penetrating a bent portion 20d of the installation panel 20, which will be described later, and protrude into the front space. At this time, one end (8a) of the third busbar may extend downward and be connected to the second terminal block (50b).

For example, the other end 8b of the third busbar may protrude into the front space through the installation panel 20. Alternatively, for example, the other end 8b of the third busbar may be bent to go over the top of the installation panel 20 in the front direction and protrude into the front space.

The other end (8b) of the third busbar may be connected to the second circuit breaker 31, which will be described later.

One end (6a) of the first busbar may be connected to the third busbar (8).

The fourth busbar 9 may be arranged in the vertical direction in the rear space. The fourth busbar 9 may be formed as a pair.

One end (9a) of the fourth busbar may be connected to the other end (6b) of the first busbar.

At this time, the fourth busbar 9 may be formed to extend downward from the first busbar 6. That is, the fourth busbar 9 may be formed to extend downward from one end connected to the first busbar 6.

At this time, in order to avoid interference between the pair of fourth bus bars 9, one of the pair of fourth bus bars 9 may be inclined laterally and extend downward.

The other end 9b of the fourth busbar may protrude into the front space.

For example, the other end 9b of the fourth busbar may protrude into the front space through the installation panel 20. For example, when the fourth busbar 9 is formed extending downward from the first busbar 6, the other end 9b of the fourth busbar is a bent portion of the installation panel 20 to be described later ( It may extend downward while penetrating 20d) and protrude into the anterior space. At this time, the other end (9b) of the fourth busbar may extend downward and be connected to the first terminal block (50a).

The first relay 10 is disposed on the first busbar 6 between the point where the other end 6b of the first busbar and the second busbar 7 are connected, and can open and close the electric circuit.

The first relay 10 may include a first manual switch 10e that allows the user to arbitrarily turn the relay on and off.

The second relay 11 is disposed in the first bus bar 6 between the point where one end 6a of the first bus bar and the second bus bar 7 are connected, and can open and close the electric circuit.

The second relay 11 may include a second manual switch 11e that allows the user to arbitrarily turn the relay on and off.

The first and second relays may be four-contact relays, excluding a separate auxiliary circuit for operating or closing the relay.

At this time, the part forming the contact point of the first relay 10 may be referred to as the 1-1 contact point bar 10a to the 1-4 contact point bar 10d. Additionally, the portion forming the contact point of the second relay 11 may be referred to as the 2-1st contact point bar 11a to the 2-4th contact point bar 11d.

The contact bar may be a bus bar that is formed integrally with the relay and protrudes from the contact point inside the relay.

At this time, the first busbar 6 may be a concept that includes a plurality of busbars connected to the contact bars of the first and second relays.

That is, the first busbar 6 may include a 1-1 busbar 61, a 1-2 busbar 62, and a 1-3 busbar 63.

The 1-1 busbar 61 can connect the first relay 10 and the second relay 11.

One end (61a) of the 1-1 bus bar may be connected to the 1-1 contact point bar (10a) and the 1-2 contact point bar (10b).

The other end (61b) of the 1-1 bus bar may be connected to the 2-1 contact point bar (11a) and the 2-2 contact point bar (11b).

One end (7a) of the second busbar may be connected to the 1-1 busbar 61.

The other end (6b) of the first busbar may refer to the 1st-3rd contact point bar (10c) and the 1st-4th contact point bar (10d) of the first relay (10).

At this time, one end (9a) of the fourth bus bar may be connected to the first-third contact point bar (10c) and the first-fourth contact point bar (10d).

The 1-2 busbar 62 and the 1-3 busbar 63 can connect the second relay 11 and the third busbar 8.

One end (62a) of the 1-2 bus bar may be connected to the 2-3 contact point bar (11c) and the 2-4 contact point bar (11d).

The other end (62b) of the 1-2 busbar may be connected to one end (63a) of the 1-3 busbar.

The other end (63b) of the 1-3 busbar may be connected to the third busbar (8).

The 1-2 busbar 62 and the 1-3 busbar 63 are provided separately so that the surface formed by the contact bar of the second relay 11 and the surface formed by the third busbar 8 are If they are not parallel, the 1st-2nd busbar 62 and/or the 1st-3rd busbar 63 are moved in the direction necessary to connect the 2nd relay 11 and the 3rd busbar 8 through surface contact. ) may be bent respectively.

At this time, one end (6a) of the first busbar may refer to the other end (63b) of the first to third busbars.

Hereinafter, with reference to FIGS. 6 to 10, the shape of the installation panel 20 and the arrangement of the busbar will be described.

The installation panel 20 can be divided into a main panel 20b, a bent portion 20d, a low panel 20c, and an upper panel 20a.

The main panel has the first busbar (6) to the fourth busbar (9) arranged at the rear, and the other end (7b) of the second busbar and the other end (8b) of the third busbar are arranged at the upper part. You can.

The main panel 20b may be partially opened so that the manual switches of the first relay 10 and the second relay 11 are exposed to the front.

The main panel 20b may be divided into a first area 20ba to a fourth area 20bd corresponding to the busbar and relay disposed at the rear of the main panel 20b.

In the first area 20ba, a portion of the first bus bar 6 and the third bus bar 8 may be disposed at the rear. The vertical length of the first area 20ba may be smaller than the vertical length of the third bus bar 8 so that both ends of the third bus bar 8 are exposed to the front space.

At this time, the other end 8b of the third bus bar may be disposed at the upper end of the first area 20ba, which is bent from the rear space to open the upper end of the first area 20ba and protrudes into the front space.

At this time, one end 8a of the third bus bar extending downward from the rear space and protruding into the front space may be disposed on the lower side of the first area 20ba.

The left-right length of the first area 20ba may be greater than the left-right length of the third bus bar 8 so that parts other than both ends of the third bus bar 8 are not exposed to the front space.

The second area 20bb is formed by extending in one direction from one end of the first area 20ba, and a portion of the first bus bar 6 and the second relay 11 may be disposed at the rear. The left-right and vertical lengths of the second area 20bb may be larger than the left-right and vertical lengths of the second relay 11 so that the second relay 11 is not exposed to the front space.

In the second area 20bb, a 2-2 opening 20bf corresponding to the second manual switch 11e in the front-back direction is provided so that the second manual switch 11e of the second relay 11 is exposed to the front. can be formed.

The third area 20bc is formed by extending in one direction from one end of the second area 20bb, and a portion of the first bus bar 6 and the second bus bar 7 may be disposed at the rear. .

The vertical length of the third area 20bc may be smaller than the vertical length of the second bus bar 7 so that the other end 7b of the second bus bar is exposed to the front space.

At this time, at the upper end of the third area 20bc, the other end 7b of the second bus bar is bent to go over the upper end of the third area 20bc from the rear space in the front direction and protrudes into the front space. The other end 7b may be disposed. .

The left-right length of the third area 20bc may be greater than the left-right length of the second bus bar 7 so that parts other than the other end 7b of the second bus bar are not exposed to the front space.

The fourth area 20bd is formed by extending in one direction from one end of the third area 20bc, and includes a portion of the first bus bar 6, the first relay 10, and the fourth bus bar at the rear. (9) can be placed.

The vertical length of the fourth area 20bd may be smaller than the vertical length of the fourth bus bar 9 so that the other end 9b of the fourth bus bar is exposed to the front space.

At this time, the other end 7b of the second bus bar may be disposed on the lower side of the fourth area 20bd, extending downward from the rear space and protruding into the front space.

The length of the fourth area 20bd in the left and right directions is such that the fourth bus bar 9 and the first relay ( It may be larger than the left and right length of 10).

In the fourth area 20bd, a 2-1 opening 20be corresponding to the first manual switch 10e in the front-back direction is provided so that the first manual switch 10e of the first relay 10 is exposed to the front. can be formed.

The lower ends of the first area 20ba to the fourth area 20bd may be arranged on the same line.

The bent portion 20d may be formed to extend rearward from the bottom of the main panel 20b.

The bent portion 20d may include a 3-1 opening 20da through which one end 8a of the third busbar passes. For example, one end 8a of the third bus bar extending downward from the rear of the first area 20ba may protrude into the front space through the 3-1 opening 20da.

The bent portion 20d may include a 3-2 opening 20db through which the other end 9b of the fourth busbar passes. For example, the other end 9b of the fourth bus bar extending downward from the rear of the fourth area 20bd may protrude into the front space through the 3-2 opening 20db.

The bent portion 20d may include a 3-3 opening 20dc through which a neutral wire (not shown) to be connected to the fourth terminal block 50d passes.

The low panel 20c may be formed to extend downward from the rear end of the bent portion 20d.

The low panel 20c may include a partition wall 20ca that protrudes forward from the panel extending downward.

The partition 20ca is a wall having a length in the vertical direction, and forms a side wall of a space where terminal blocks are placed, and can block electrical connections between adjacent terminal blocks. A plurality of partition walls 20ca may be formed to be spaced apart from each other in the left and right directions.

Accordingly, the low panel 20c includes a first terminal block 50a and a second terminal block ( 50b) can form a space in which to be placed.

Additionally, the low panel 20c may form a space in which the third terminal block 50c and the fourth terminal block 50d, to which the neutral wire is connected, will be placed.

The upper panel 20a may be formed to extend upward from a portion of the top of the main panel 20b.

The upper panel 20a may include a fifth area 20aa and a sixth area 20ab.

The fifth area 20aa may be formed to extend upward from the top of the first area 20ba and the second area 20bb of the main panel 20b.

The fifth area 20aa may form a first opening 20ac on the upper side of the first area 20ba. The first opening 20ac may allow the other end 8b of the third busbar to pass from the rear space and protrude into the front space.

A sub-PCB 4b may be fastened to the rear of the fifth area 20aa. The fifth area 20aa may have a shape corresponding to the sub-PCB 4b.

The upper panel 20a is not formed upward from the top of the third area 20bc, so that the top of the third area 20bc can be open. Accordingly, the other end 7b of the second busbar can pass from the rear space and protrude into the front space.

The sixth area 20ab may be formed to extend upward from the top of the fourth area 20bd.

In front of the fifth area (20aa) and the sixth area (20ab), the PCB bracket (5), main PCB (4a), display bracket (81), and touch display (80) are arranged and fastened in order from rear to front. It can be.

The peripheral panel 20e may be formed to extend rearward from a portion of the outer edges of the main panel 20b and the upper panel 20a.

The installation panel fastening portion 20ea extends from the peripheral panel 20e and makes surface contact with the back of the case 2, so that the installation panel 20 can be bolted to the case 2.

The peripheral panel 20e can transmit force so that the fastened installation panel 20 is supported by the case 2.

The peripheral panel 20e may include a bent portion 20d.

Hereinafter, with reference to FIGS. 11, 12, and 15, the expansion terminal 90 and terminal block fastened to the power distribution device 1 will be described.

The power distribution device 1 may further include an expansion terminal 90.

The expansion terminal 90 is connected to the second bus bar 7 and the first breaker 30, so that the second bus bar 7 and the first breaker 30 can be connected. The expansion terminal 90 can allow a plurality of first circuit breakers 30 to be connected in parallel with the second busbar 7.

The expansion terminal 90 may include a base panel 90a, a conductive panel 90b, a circuit breaker insertion portion 90c, and a fixer.

The base panel 90a forms a front surface on which the conductive panel 90b can be fastened. The base panel 90a may be fastened to the installation panel 20. For example, the base panel 90a may be fastened to the third region 20bc of the main panel 20b.

The other end (7b) of the second busbar may be connected to the conductive panel (90b). The second bus bar 7 may be fastened to the conductive panel 90b with bolts. The conductive panels 90b may be formed as a pair to correspond to the pair of second bus bars 7.

The conductive panel 90b is made of a conductive material and can electrically connect the plurality of first circuit breakers 30 to the second busbar 7.

The conductive panel 90b and the other end 7b of the second busbar may be bolted to each other by the second busbar fastening portion 90e.

The circuit breaker insertion portion 90c may be formed to protrude forward from the conductive panel 90b. The first circuit breaker 30 may be inserted into the circuit breaker insertion portion 90c.

Meanwhile, there may be a plurality of first power sources 100. At this time, the first circuit breaker 30 may be provided in plural numbers corresponding to the plurality of first power sources 100 .

The circuit breaker insertion portion 90c may be formed in plural numbers so that the plurality of first circuit breakers 30 share adjacent sides. (see Figure 15)

For example, a plurality of circuit breaker insertion portions 90c may be formed in the central portion of the conductive panel 90b in the left and right directions, and may be formed to be spaced apart from each other up and down.

For example, the lower side of the 1-1 breaker 30a may be in contact with the upper side of the 1-2 breaker 30b. For example, the lower side of the first-second breaker 30b may be in contact with the upper side of the first-third breaker 30c. For example, the left side of the 1st-3rd breaker 30c and the right side of the 1st-4th breaker 30d may be in contact.

Accordingly, the space efficiency of the power distribution device 1 can be improved by allowing the plurality of first circuit breakers 30 to be inserted without wasted space.

The fixer can fix the conductive panel 90b to the base panel 90a. The fixer is formed along the circuit breaker insertion portion 90c and supports the conductive panel 90b, thereby preventing the conductive panel 90b from being separated from the base panel 90a.

Therefore, by providing the expansion terminal 90, the usability of the power distribution device 1 can be improved by easily responding to the expansion of the power source.

The power distribution device 1 may include a terminal block that connects a wire coming from the outside to a circuit inside the power distribution device 1. The terminal block may have a structure in which a groove into which an electric wire is inserted is formed on one side, and an electric circuit inside the power distribution device 1 can be connected to the other side. The terminal block may be in the form of a generally commercial product.

The terminal block may include a first terminal block (50a) to a fourth terminal block (50d).

The first terminal block 50a is disposed on the low panel 20c and connected to the other end 9b of the fourth bus bar, and may be electrically connected to the external commercial load 102. For example, the first terminal block 50a may be disposed in a gap formed by the partition wall 20ca of the low panel 20c. For example, the other end 9b of the fourth bus bar protruding downward may be connected to the rear of the first terminal block 50a through the 3-2 opening 20db of the bent portion 20d. For example, a wire connected to an external commercial load 102 may be inserted into the front of the first terminal block 50a.

The second terminal block 50b is disposed on the low panel 20c, is connected to one end 8a of the third bus bar, and can be electrically connected to the external emergency load 103. For example, the second terminal block 50b may be disposed in a gap formed by the partition wall 20ca of the low panel 20c. For example, at the rear of the second terminal block 50b, one end 8a of a third bus bar protruding downward may be connected to the third bus bar through the 3-1 opening 20da of the bent portion 20d. For example, a wire connected to an external emergency load 103 may be inserted into the front of the second terminal block 50b.

The third terminal block 50c is placed on the low panel 20c and connected to the neutral wire (not shown) inside the power distribution device 1, and is connected to the external commercial load 102 and the second power source 101. A connecting neutral wire can be inserted.

The fourth terminal block (50d) is placed on the low panel (20c) and connected to the neutral wire (not shown) inside the power distribution device (1), and is connected to the external emergency load (103) and the 1-1 power source (100a). ) can be inserted.

Hereinafter, with reference to FIGS. 13 and 14, the circuit breaker attached to the power distribution device 1 will be described.

The power distribution device 1 may include a first breaker 30 and a second breaker 31.

The first breaker 30 is disposed on the main panel 20b and connected to the other end 7b of the second busbar, and may be electrically connected to the external first power source 100.

For example, the first circuit breaker 30 may be placed in the third area 20bc of the main panel 20b. For example, the first circuit breaker 30 may be connected to the other end 7b of the second busbar that is bent to go over the top of the third area 20bc of the main panel 20b and protrudes into the front space.

For example, the first breaker 30 is inserted into the breaker insertion portion 90c of the expansion terminal 90 disposed in the third area 20bc, and the other end 7b of the second busbar is connected to the expansion terminal 90. ), the first circuit breaker 30 and the other end 7b of the second busbar can be connected. The first breaker 30 inserted into the breaker insertion part 90c may be provided with a wire insertion part on its side into which a wire connected to the first power source 100 is inserted.

The first circuit breaker 30 may be equipped with a manual switch on the front that the user can turn on and off at will.

The first circuit breaker 30 may be placed adjacent to the top of the main panel 20b. For example, the first circuit breaker 30 may be placed adjacent to the top of the third area 20bc.

Accordingly, the front exposed area of the other end 7b of the second busbar exposed to the front space in order to be connected to the first circuit breaker 30 can be minimized, thereby protecting the user from the risk of electric shock.

The second breaker 31 is disposed on the main panel 20b and connected to the other end 8b of the third busbar, and may be electrically connected to the external second power source 101.

For example, the second circuit breaker 31 may be placed in the first area 20ba of the main panel 20b. For example, the second circuit breaker 31 may be connected to the other end 8b of the third bus bar that is bent to go over the top of the first area 20ba of the main panel 20b and protrudes into the front space. The second circuit breaker 31 disposed on the main panel 20b may be provided with a wire insertion portion on the lower side into which a wire connected to the second power source 101 is inserted.

The second circuit breaker 31 may be equipped with a manual switch on the front that the user can turn on and off at will.

The second circuit breaker 31 may be placed adjacent to the top of the main panel 20b. For example, the second circuit breaker 31 may be placed adjacent to the top of the first area 20ba.

Accordingly, the front exposed area of the other end 8b of the third busbar exposed to the front space in order to be connected to the second circuit breaker 31 can be minimized to protect the user from the risk of electric shock.

Hereinafter, with reference to FIG. 14, the state in which the electric wire is connected to the opening hole of the case 2 and the power distribution device 1 will be described.

The case 2 may include a first opening hole (2ha) on the lower side that is opened to correspond to the first terminal block 50a in the vertical direction and through which an electric wire is introduced. For example, the first opening hole 2ha may be located on the same line in the vertical direction as the first terminal block 50a in the lower panel 2e of the case 2.

The case 2 may include a second opening hole 2hb on the lower side that is open to correspond in the vertical direction to the second terminal block 50b and through which an electric wire is introduced. For example, the second opening hole 2hb may be located on the same line in the vertical direction as the second terminal block 50b on the lower panel 2e of the case 2.

Case 2 may include a third opening hole 2hc on the side that opens to allow electric wires to enter. For example, the third opening hole 2hc may be formed in the right side panel 2g of the case 2.

The case 2 may include a fourth opening hole 2hd on the lower side that is opened to correspond to the third terminal block 50c in the vertical direction and through which an electric wire is introduced. For example, the fourth opening hole 2hd may be located on the same line in the vertical direction as the third terminal block 50c on the lower panel 2e of the case 2.

The case 2 may include a fifth opening hole 2he on the lower side that is opened to correspond vertically to the fourth terminal block 50d and through which an electric wire is introduced. For example, the fifth opening hole 2he may be located on the same line in the vertical direction as the fourth terminal block 50d on the lower panel 2e of the case 2.

Case 2 may include a sixth opening hole 2hf on the side that opens to allow electric wires to enter. For example, the sixth opening hole 2hf may be formed in the left side panel 2f of the case 2. (see Figure 2)

The opening hole is generally closed by a separate injection molding material, but when necessary, the installer can easily remove the injection molding material to open it.

The wire connecting the first terminal block 50a and the commercial load 102 may be introduced through the first opening hole (2ha).

The wire connecting the third terminal block 50c and the commercial load 102 may be introduced through the fourth opening hole 2hd. The wire connecting the third terminal block 50c and the second power source 101 may be introduced through the fourth opening hole 2hd.

The wire connecting the fourth terminal block (50d) and the 1-1 power source (100a) may be introduced through the fifth opening hole (2he). The wire connecting the fourth terminal block 50d and the emergency load 103 may be introduced through the fifth opening hole 2he.

The wire connected to the third terminal block 50c and the fourth terminal block 50d may be an electrical neutral wire. At this time, it is natural that the neutral wire of another wire introduced into the power distribution device 1 can be connected to the third terminal block 50c and the fourth terminal block 50d.

The wire connecting the second terminal block 50b and the emergency load 103 may be introduced through the second opening hole 2hb. The wire connecting the second terminal block 50b and the second power source 101 may be introduced through the second opening hole 2hb.

The wire connecting the 1-1 circuit breaker (30a) and the 1-1 power source (100a) may be introduced through the third opening hole (2hc). However, the opening hole through which the wire connecting the 1-1 breaker (30a) and the 1-1 power source (100a) enters the power distribution device (1) must be placed in the installation space of the power distribution device (1). It can be changed appropriately depending on the location of the 1-1 power source 100a.

Therefore, by appropriately arranging the parts to which wires are connected in the power distribution device (1) and designing the busbar to enable such arrangement, the wires coming from outside are straight or close to a straight line inside the power distribution device (1). By being able to be placed, the inefficient space occupied when the wire is curved can be reduced and the volume of the power distribution device (1) can be reduced.

Meanwhile, the connection state of the wires outside the power distribution device 1 may vary depending on the conditions of the installation space or wiring environment, regardless of what is shown in FIG. 14.

Hereinafter, with reference to FIG. 16, the shape of the front panel 2b will be described.

The front panel 2b may include a 4-1 opening 2ba that opens to correspond to the first circuit breaker 30 in the front-to-back direction. The 4-1 openings 2ba may be formed in plural numbers to correspond to the first circuit breaker 30 provided in plural numbers.

The front panel 2b may include a 4-2 opening 2bb that opens to correspond to the second circuit breaker 31 in the front-to-back direction.

The front panel 2b may include a 4-3 opening 2bc that opens to correspond to the touch display 80 described above in the front-to-back direction.

The power distribution device 1 may further include a reset switch 70 that allows the power distribution device 1 to be reset. The reset switch 70 may be electrically connected to the main PCB (4a).

The front panel 2b may include a 4-4th opening 2bd that opens to correspond to the reset switch 70 in the front-back direction.

The power distribution device 1 may further include a storage port 71 that can transmit operation records of the power distribution device 1 to an inserted removable storage device. The storage port 71 may be electrically connected to the main PCB (4a). The storage port 71 may be a general USB port.

The front panel 2b may include fourth-fifth openings 2be that open to correspond to the storage port 71 in the front-to-back direction.

The 4-4th opening 2bd and the 4-5th opening 2be may be formed integrally.

Therefore, through the opening formed in the front panel (2b), the user can operate the parts accommodated inside the case (2) without removing the front panel (2b), thereby improving the user's management convenience and preventing electric shock. You can.

The attached drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited by the attached drawings, and all changes and equivalents included in the spirit and technical scope of the present invention are not limited to the attached drawings. It should be understood to include water or substitutes.

Likewise, in this embodiment, only the case where the wires are aligned to the lower side of the case 2 and are introduced in a shape close to a straight line has been described, but the present invention does not apply to the direction in which the wires are introduced or the position of the internal structure in the range where the wires are not curved. It should be understood that this includes all cases where there has been a change.

Likewise, in this embodiment, it is classified into front space and rear space on the premise that the worker or user approaches the front panel of the case, so if the opening panel and the worker's approach direction are different, the installation panel placement and rearrangement are changed accordingly. It is natural that the same technical idea can be implemented by varying the arrangement of the busbars.

In addition, although preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or perspective of the present invention.

Power distribution device 1 case 2
Wireless communication module 3 Control unit 4
1st busbar 6 2nd busbar 7
3rd busbar 8 4th busbar 9
1st relay 10 2nd relay 11
Installation panel 20 1st circuit breaker 30
Second circuit breaker 31 CT sensor 40
Terminal block 50 Reset switch 70
Storage port 71 Touch display 80
Display bracket 81 Extension terminal 90
First power source 100 Second power source 101
Commercial load 102 Emergency load 103
electricity meter 104

Claims (15)

A case including a front panel that opens and closes;
an installation panel disposed inside the case to face the front panel and dividing the inside of the case into a front space and a rear space;
a pair of first bus bars disposed in left and right directions in the rear space;
a pair of second bus bars disposed in the rear space in a vertical direction, one end of which is connected to the first bus bar and the other end of which protrudes into the front space;
a pair of third bus bars arranged in the vertical direction in the rear space, one end of the lower side and the other end of the upper side protruding into the front space, and one end of the first bus bar being connected to each other; and
It includes a pair of fourth bus bars arranged in the vertical direction in the rear space, one end of which is connected to the other end of the first bus bar, and the other end of which protrudes into the front space,
A power distribution device in which one end of the first busbar is connected to a portion spaced apart from both ends of the third busbar, and one end of the third busbar is spaced apart from one end of the first busbar. According to paragraph 1,
The second busbar is,
It is formed to extend upward from the first busbar,
The fourth busbar is,
A power distribution device extending downward from the first busbar. According to paragraph 2,
The installation panel is,
a main panel on which the first to fourth busbars are disposed at the rear, and the other ends of the second busbar and the third busbar are disposed at the upper end; and
a bent portion extending rearward from the bottom of the main panel and including an opening through which the other end of the fourth bus bar and one end of the third bus bar penetrate;
A space where a terminal block is disposed, which extends downward from the rear end of the bent portion and has a partition wall protruding forward, connecting the other end of the fourth bus bar and one end of the third bus bar with an electric wire coming from the outside. A power distribution device including a low panel forming a . According to paragraph 3,
a first circuit breaker disposed on the main panel, connected to the other end of the second busbar, and electrically connected to a first external power source;
a second breaker disposed on the main panel, connected to the other end of the third busbar, and electrically connected to a second external power source;
A first terminal block disposed on the low panel, connected to the other end of the fourth bus bar, and electrically connected to an external commercial load; and
A second terminal block disposed on the low panel, connected to one end of the third bus bar, and electrically connected to an external emergency load. According to paragraph 4,
In the above case,
A first opening hole on the lower side is opened to correspond to the first terminal block in a vertical direction and through which an electric wire is introduced; and
A power distribution device further comprising a second opening hole on the lower side so as to correspond vertically to the second terminal block and through which an electric wire is introduced. According to paragraph 4,
A first relay disposed in the first busbar between a point where the other end of the first busbar and the second busbar are connected, and opening and closing the electric circuit; and
A power distribution device further comprising a second relay, which is disposed in the first busbar between a point where one end of the first busbar and the second busbar are connected and opens and closes the electric circuit. According to clause 6,
The main panel is,
A power distribution device in which a portion of the first relay and the second relay are opened so that the manual switches are exposed to the front. According to paragraph 4,
The first breaker and the second breaker,
Power distribution devices arranged adjacent to the top of each main panel. According to paragraph 4,
The front panel is,
A power distribution device that is opened to correspond to the first and second circuit breakers in the front and rear directions. According to paragraph 4,
The power distribution device,
A conductive panel to which the other end of the second busbar is connected; and
It further includes an extension terminal including a circuit breaker insertion portion protruding from the conductive panel,
The first breaker is,
A power distribution device inserted into the circuit breaker insertion portion. According to clause 10,
The first power source is,
There are plural,
The first breaker is,
It is provided in a plurality corresponding to the plurality of first power sources,
The circuit breaker insertion part,
A power distribution device in which the plurality of first circuit breakers are formed in plural numbers to share adjacent sides. According to paragraph 1,
The power distribution device,
It further includes a touch display that displays a menu for monitoring or manipulating the power distribution device,
The front panel is,
A power distribution device that is opened to correspond to the touch display in the front and rear directions. According to paragraph 1,
The power distribution device,
Further comprising a reset switch capable of causing the power distribution device to be reset,
The front panel is,
A power distribution device that is opened to correspond to the reset switch in the front and rear directions. According to paragraph 1,
The power distribution device,
It further includes a storage port capable of transmitting an operation record of the power distribution device to an inserted removable storage device,
The front panel is,
A power distribution device that is opened to correspond to the storage port in the front and rear directions. According to paragraph 4,
The other end of the fourth busbar and one end of the third busbar are,
It extends downward and is connected to the first terminal block and the second terminal block, respectively,
The other end of the second busbar and the other end of the third busbar are,
A power distribution device that is bent to extend over the top of the main panel in a forward direction and is connected to the first and second circuit breakers, respectively.

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