KR102141564B1 - Inverter apparatus and the inverter panel comprises the same - Google Patents

Abstract

Disclosed is an inverter device, an inverter panel in which the inverter device is accommodated, and a power conversion device including the inverter panel. Inverter device according to the present invention can be introduced and discharged air by using a blower for providing a transfer force to the air. In addition, an opening is formed in the inverter panel at a position corresponding to the opening for blowing in the inverter device. Therefore, efficient cooling of the inverter device accommodated in the inverter panel is possible.

Description

Inverter apparatus and the inverter panel comprises the same}

The present invention relates to an inverter device and an inverter panel including the same, and more particularly, to an inverter device capable of independently cooling a plurality of device parts included in the inverter panel accommodated in the inverter panel and an inverter panel including the same. .

The power converter generally receives DC power, converts it into AC power, and outputs it. This is due to the fact that the power used for household and industrial use is mainly an AC power.

At this time, the capacity that the power converter can convert at one time or the capacity of the AC power that can be stored at one time can be referred to as “power conversion capacity”.

The power conversion device may be provided and used in an ESS (Energy Storage System). The power conversion capacity of the power conversion device is an important factor for determining the capacity of the ESS provided with the power conversion device.

Inverters and filters are mentioned as components of the power converter. The inverter converts the input DC power into AC power. The filter performs filtering to remove noise of the AC power converted by the inverter.

Referring to FIG. 1, the power converter according to the prior art filters a DC panel (DC PNL) that receives DC power, a stack panel (STACK 1, 2 PNL) that converts DC power to AC power, and filters the converted AC power. It includes a filter panel for (FILTER PNL) and an AC panel (AC PNL) for outputting the converted AC power.

The power conversion device is provided as a stack panel (STACT 1, 2 PNL) and a filter panel (FILTER PNL) are separated. That is, according to the power conversion capacity, there is a limit to design changes to the power conversion device including all of the panels as a whole.

2, the flow of air for cooling the power converter according to the prior art is shown. Specifically, heat dissipation is performed in the air-cooled manner of the stack panel STACK 1 and 2 PNL and the filter panel FILTER PNL where the most heat is generated.

At this time, the stack panel (STACK 1, 2 PNL) and the front or rear of the filter panel (FILTER PNL) is a structure that is blocked without openings for inflow and outflow of air. Therefore, the air for cooling is introduced to the lower side of the stack panel (STACK 1, 2 PNL) and the filter panel (FILTER PNL) and discharged upward (Fig. 2 (a) and (b)).

However, such a cooling method is difficult to effectively cool the stack panel (STACK 1, 2 PNL) and the filter panel (FILTER PNL), and there is a problem of the possibility of damage to the internal device due to residual heat.

Hereinafter, a problem of the cooling method of the power converter according to the prior art will be described in detail with reference to FIG. 3.

First, inside the stack panel (STACK 1, 2 PNL), the transfer force for introducing outside air into the stack panel (STACK 1, 2 PNL) or out of the stack panel (STACK 1, 2 PNL) No device for providing is provided.

That is, since air can be introduced into the stack panel (STACK 1, 2 PNL) only by natural flow, there is a limitation that effective cooling is difficult.

There is also a problem with air entering from the bottom of the stack panel (STACK 1, 2 PNL).

Specifically, the introduced air passes through a stack having a high degree of heat generation and receives heat. However, the air that has passed through the stack is not immediately discharged to the outside of the stack panel (STACK 1, 2 PNL), and stays in the space formed on the stack, that is, the air room.

Therefore, the heat received by the air passing through the stack is transferred to another device inside the stack panel (STACK 1, 2 PNL). Accordingly, as the temperature inside the stack panel (STACK 1, 2 PNL) increases, there is a fear that other devices provided inside the stack panel (STACK 1, 2 PNL) are damaged.

This results in problems such as stack panel (STACK 1, 2 PNL), and further reduction in power conversion capacity and operating life of the entire power converter.

Korean Registered Patent Publication No. 10-0997012 (2010.11.25.) Korean Registered Patent Publication No. 10-1636630 (2016.07.05.)

An object of the present invention is to provide an inverter device capable of solving the above-described problems and an inverter panel including the same.

First, an object of the present invention is to provide an inverter device and an inverter panel that facilitate inflow of air for cooling and outflow of heat-exchanged air by providing a transfer force to the air flowing into the inverter device or the inverter panel.

In addition, an object of the present invention is to provide an inverter device and an inverter panel in which heat-exchanged air may not be left unnecessarily by removing unnecessary space inside the inverter panel.

In addition, an object of the present invention is to provide an inverter device and an inverter panel that can adjust the flow rate of air for cooling according to the degree of heat generation of each component.

In addition, an object of the present invention is to provide an inverter device and an inverter panel capable of effectively cooling an inverter device even at different locations in a power supply device, that is, indoor or outdoor environments.

In order to achieve the above object, the present invention, the first device unit having an inverter module for converting a DC power supply into an AC power supply to the external load; A second device portion positioned adjacent to the first device portion and having a filter for filtering noise of the AC power therein; And a partition wall part separating the first device part and the second device part, wherein the first device part is formed on one side of the first device part, and air for cooling the inverter module into the first device part. A first intake part to which the flow is introduced; And a first exhaust portion formed on the other side opposite to one side of the first device portion, through which air introduced into the first intake portion is discharged, and the second device portion is in the same direction as one side of the first device portion. A second intake portion formed on one side of the second device portion facing the air, through which air for cooling the filter is introduced into the second device portion; And it is formed on the other side opposite to one side of the second device portion, and provides an inverter device including a second exhaust portion through which the air introduced into the second intake portion is discharged.

In addition, the inverter device, at least one of the first intake unit and the first exhaust unit is provided with a first blowing unit that provides a transfer force to the air flowing inside the first unit unit, the second intake At least one of the unit and the second exhaust unit may be provided with a second blowing unit that provides a transfer force to the air flowing inside the second device unit.

In addition, the inverter device may be formed on one side of the first device portion adjacent to the first intake portion, and a third intake portion through which air for cooling the inverter module may be introduced into the first device portion. have.

Further, the inverter module may include at least one of a capacitor, a heatsink, and an IGBT (isolated gate bipolar transistor).

In addition, the present invention, an inverter device for receiving a direct current power to convert to an alternating current power source; And a first inverter accommodating part accommodating the inverter device therein and a PCB device accommodating part positioned below the first inverter accommodating part to accommodate a PCB device therein, wherein the inverter device supplies DC power therein. A first device unit having an inverter module that is converted to AC power and supplied to an external load; A second device portion positioned adjacent to the first device portion and having a filter for filtering noise of the AC power therein; And a partition wall part separating the first device part and the second device part, wherein the first device part is formed on one side of the first device part, and air for cooling the inverter module into the first device part. A first intake part to which the flow is introduced; And a first exhaust portion formed on the other side opposite to one side of the first device portion, through which air introduced into the first intake portion is discharged, and the second device portion is in the same direction as one side of the first device portion. A second intake portion formed on one side of the second device portion facing the air, through which air for cooling the filter is introduced into the second device portion; And a second exhaust portion formed on the other side opposite to one side of the second device portion and through which air introduced into the second intake portion is discharged, wherein the PCB device is electrically connected to the inverter device. Provided is an inverter panel configured to control a device.

In addition, the inverter panel, one side of the first inverter accommodating portion facing the same direction as the one side of the inverter device in which the first intake portion is formed, one or more first panel intake air is introduced into the first inverter accommodating portion An additional portion may be formed, and on the other side of the first inverter accommodation portion facing the same direction as the other side of the inverter device where the first exhaust portion is formed, a first panel exhaust portion through which air inside the first inverter accommodation portion is discharged may be formed. .

In addition, an external air inlet through which air is introduced into the PCB device receiving part may be formed below the PCB device receiving part.

In addition, the inverter panel includes a base portion located below the PCB device accommodating portion, and a first base intake portion through which air for cooling the PCB device is introduced into the base portion on one side of the base portion, On one side of the base portion adjacent to the PCB device accommodating portion, an external air supply portion through which air introduced into the base portion is supplied to the PCB device accommodating portion is formed. Wealth can be aligned with each other.

In addition, an outside air exhaust portion is formed at one side of the PCB device receiving portion, and the outside air flowing into the PCB device receiving portion may be discharged to the outside air exhaust portion.

In addition, a panel blower may be provided on any one or more of the outside air inlet and the outside air exhaust of the PCB device receiving portion.

In addition, the present invention includes a first inverter accommodating portion accommodating an inverter device that receives DC power and converts it into AC power, and a second inverter accommodating portion positioned adjacent to the first inverter accommodating portion, wherein the first inverter Each of the inverter devices is accommodated inside the accommodating part and the second inverter accommodating part, and the inverter device includes: a first device part having an inverter module converting DC power into AC power therein and supplying it to an external load; A second device portion positioned adjacent to the first device portion and having a filter for filtering noise of the AC power therein; And a partition wall part separating the first device part and the second device part, wherein the first device part is formed on one side of the first device part, and air for cooling the inverter module into the first device part. A first intake part to which the flow is introduced; And a first exhaust portion formed on the other side opposite to one side of the first device portion, through which air introduced into the first intake portion is discharged, and the second device portion is in the same direction as one side of the first device portion. A second intake portion formed on one side of the second device portion facing the air, through which air for cooling the filter is introduced into the second device portion; And it is formed on the other side opposite to one side of the second device portion, and provides an inverter panel including a second exhaust portion through which the air introduced into the second intake portion is discharged.

In addition, the inverter panel, on one side of the first inverter accommodating portion facing the same direction as one side of the inverter device on which the first intake portion is formed, a first panel intake portion through which air flows into the first inverter accommodating portion is formed. In addition, a first panel exhaust portion through which air inside the first inverter accommodation portion is discharged may be formed on the other side of the first inverter accommodation portion facing the same direction as the other side of the inverter device in which the first exhaust portion is formed.

In addition, the inverter panel, on one side of the second inverter accommodating portion facing the same direction as one side of the inverter device on which the first intake portion is formed, a second panel intake portion through which air flows into the second inverter accommodating portion is formed. One or more second panel exhausts through which air inside the second inverter accommodating part is discharged may be formed on the other side of the second inverter accommodating part facing the same direction as the other side of the inverter device in which the first exhaust part is formed. .

In addition, the present invention is a power conversion device including the inverter panel, located adjacent to one side of the inverter panel, power conversion including a power input panel for receiving the DC power from the outside and supplying it to the inverter panel Provide a device.

In addition, the power conversion device may be located adjacent to the other side of the inverter panel, and may include a power output panel that receives the converted AC power from the inverter panel and outputs it to the outside.

According to the present invention, there are the following effects.

First, a conveying force for introducing air into the inverter device may be provided using a blower provided in the inverter device. Therefore, effective cooling of the inverter device is possible.

In addition, the inverter device is provided with a modular, power conversion device is configured in such a way that the modular inverter device is inserted into the inverter panel. Therefore, unnecessary space is not formed in the inverter panel, so that excessive residual heat-exchanged air is prevented.

In addition, an additional configuration for air cooling is provided on the side of the inverter module having a high degree of heat generation. Therefore, the flow amount of air can be adjusted according to the degree of heat generation, thereby enabling effective cooling of the inverter device.

In addition, the path through which the air flows may be changed according to the environment in which the inverter panel is provided. Therefore, it is possible to minimize the influence of the installation environment and effectively cool the inverter device.

1 is a front view of a power conversion device according to the prior art.
FIG. 2 is a view showing a process in which air is introduced and discharged into a stack panel provided in the power conversion device of FIG. 1.
3 is a view showing the process of FIG. 2 in more detail.
4 is a perspective view of a power conversion device according to an embodiment of the present invention.
5 is a front view of the power converter of FIG. 4.
FIG. 6 is a side view of the inverter panel provided in the power converter of FIG. 4.
7 is a rear view of the power converter of FIG. 4.
8 is a perspective view of an inverter device provided in the power conversion device of FIG. 4.
9 is a view showing the internal configuration of the inverter device of FIG. 8.
10 is a front view of the inverter device of FIG. 8.
11 is a side view showing the internal configuration of the inverter device of FIG. 8.
12 is a rear view of the inverter device of FIG. 8.
13 is a diagram illustrating a process in which an inverter device according to an embodiment of the present invention is inserted into an inverter panel.
14 is a perspective view of a state in which an inverter panel according to an embodiment of the present invention is combined.
15 is a front view of FIG. 14.
16 is a perspective view of an indoor inverter panel according to another embodiment of the present invention.
17 is a front view of the indoor inverter panel of FIG. 16.
18 is a side view showing the internal configuration of the indoor inverter panel of FIG. 16.
19 is a rear view of the indoor inverter panel of FIG. 16.
20 is a perspective view of an outdoor inverter panel according to another embodiment of the present invention.
21 is a front view of the outdoor inverter panel of FIG. 20.
22 is a side view showing the internal configuration of the outdoor inverter panel of FIG. 20.
23 is a rear view of the outdoor inverter panel of FIG. 20.
24 is a front view of a power conversion apparatus having a line conversion panel according to an embodiment of the present invention.
25 is a plan view of the power conversion device of FIG. 24.
26 is a rear view of the power return device of FIG. 24.
27 is a right side view (a) and a left side view (b) of the power conversion device of FIG. 24.
28 is a view showing a process of air flow in the inverter device of FIG. 8.
29 is a view showing a flow process of air inside the inverter panel according to an embodiment of the present invention.
FIG. 30 is a view showing a process of air flow inside the indoor inverter panel according to FIG. 16 and the outdoor inverter panel according to FIG. 20.
FIG. 31 is a view showing internal conductors of a line conversion panel provided in the power conversion device of FIG. 24.

Hereinafter, an inverter device, an inverter panel, and a power conversion device including the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The terms "front side", "rear side", "left side", "right side", "upper side" and "rear side" used in the following description are shown in FIGS. 4, 8, 9, 13, 14, and 14 16, 20, 24, 26 and 31 will be understood with reference to the coordinate system shown.

It should be understood that the singular expression used in the following description includes a plurality of concepts, unless the context clearly departs.

1. Description of the configuration of the power conversion device 1 according to the embodiment of the present invention

4 to 7, the power conversion device 1 according to the illustrated embodiment includes an inverter device 10, an inverter panel 500, and a power panel 600.

As will be described later, the inverter device 10 according to an embodiment of the present invention is configured to be modular. Specifically, the inverter device 10 includes an inverter module 240 and a filter 340 to be described later therein.

Therefore, each of the inverter devices 10 can convert DC power to AC power and even filter the converted AC power. The inverter device 10 is coupled to the inverter panel 500, and as each inverter panel 500 is electrically connected, a power conversion device 1 according to an embodiment of the present invention is configured.

4 and 5, each component of the power conversion device 1 according to the illustrated embodiment is arranged in a row in a direction in which the front side and the rear side are vertical, that is, right and left. The arrangement method can be changed.

A power input panel 610 and a power output panel 620 are provided at the right and left ends of the power converter 1. The power input panel 610 and the power output panel 620 constitute a power panel 600 in charge of inputting and outputting power.

The positions of the power input panel 610 and the power output panel 620 transfer power to the inverter panel 500 and the inverter device 10 accommodated in the inverter panel 500, and the inverter panel 500 and the inverter device ( It can be changed to another location that can receive power from 10).

A first panel intake part 511 and a second panel intake part 521 are provided on the front side of the inverter panel 500. As will be described later, the inverter panel 500 according to an embodiment of the present invention includes a structure in which external air can be introduced and discharged. The first panel intake part 511 and the second panel intake part 521 function as a passage through which external air flows into the inverter panel 500.

Referring to FIG. 6, the inverter panel 500 according to the illustrated embodiment may accommodate a plurality of inverter devices 10 inside.

Specifically, the inverter panel 500 includes a first inverter receiving portion 510 formed on the upper side and a second inverter receiving portion 520 formed on the lower side of the first inverter receiving portion 510.

As will be described later, the inverter device 10 may be accommodated in the first inverter accommodating part 510 and the second inverter accommodating part 520, respectively.

A first panel intake portion 511 is formed on a front side of the first inverter accommodating portion 510, and a first panel exhaust portion 512 is formed on a rear side.

In addition, a second panel intake portion 521 is formed on a front side of the second inverter accommodating portion 520, and a second panel exhaust portion 522 is formed on a rear side.

Referring to FIG. 7, in the inverter panel 500 included in the power conversion device 1 according to the illustrated embodiment, the first panel exhaust unit 512 and the second panel exhaust unit 522 are formed on the rear side surface. .

In addition, although not shown, a separate air inlet (not shown) and an air outlet (not shown) for cooling may be formed in the power panel 600.

(1) Description of the inverter device 10

The inverter device 10 includes a configuration for converting the transferred DC power to AC power. Specifically, the inverter device 10 includes an inverter module 240 that performs a function of converting power. In addition, the inverter device 10 includes a filter 340 for filtering the AC power converted by the inverter module 240.

As described above, the inverter device 10 according to an embodiment of the present invention includes both the inverter module 240 and the filter 340. That is, the inverter device 10 itself includes all components necessary for converting DC power into AC power.

The inverter device 10 has a predetermined power conversion capacity. In addition, when a plurality of inverter devices 10 are provided and connected to energize each other, the power conversion capacity may be increased by the increased number of inverter devices 10.

Therefore, the power conversion capacity can be increased just by providing a plurality of inverter devices 10.

Hereinafter, the inverter device 10 according to the embodiment of the present invention will be described in detail with reference to FIGS. 8 to 12.

The inverter device 10 according to the illustrated embodiment includes a housing 100, a first device part 200, a second device part 300, and a partition wall part 400.

1) Description of the housing 100

The housing 100 forms the outer shape of the inverter device 10. In the illustrated embodiment, the housing 100 is a rectangular parallelepiped shape extending toward the front side and the rear side, but the shape of the housing 100 may be changed.

However, as will be described later, the inverter device 10 may be accommodated in the inverter panel 500. In this case, it is sufficient if the plurality of inverter devices 10 have a shape that can be stably accommodated in the inverter panel 500.

The housing 100 may be formed of an insulating material, for example, a plastic material.

A switch (not shown) for controlling the operation of the inverter device 10 may be provided on the front side of the housing 100.

One side of the housing 100 is provided with an input terminal portion 150a and an output terminal portion 150b. In the illustrated embodiment, the input terminal portion 150a and the output terminal portion 150b are provided on the front side upper side of the housing 100.

The input terminal unit 150a functions as a channel through which DC power is transmitted to the inverter device 10. In addition, an electrical signal for driving the inverter device 10 and controlling the inverter device 10 may be transmitted to the input terminal unit 150a.

The output terminal unit 150b functions as a channel through which the AC power converted by the inverter device 10 is transmitted to the outside. In addition, an electrical signal regarding status information of the inverter device 10 may be output from the output terminal 150b.

The port 551 to be described later is coupled to the input terminal portion 150a and the output terminal portion 150b. In one embodiment, the port 551, which will be described later, may be combined in the form of being inserted into the input terminal portion 150a and the output terminal portion 150b.

The input terminal unit 150a and the output terminal unit 150b according to the illustrated embodiment are integrally formed with the housing 100. Alternatively, the input terminal portion 150a and the output terminal portion 150b may be separately provided and coupled to the housing 100.

The housing 100 according to the illustrated embodiment may be divided into a first device unit 200 and a second device unit 300. Alternatively, the first device unit 200 and the second device unit 300 may be defined as a space formed inside the housing 100.

However, in the following description, for convenience of description and understanding, the first device unit 200 and the second device unit 300 will be described assuming a three-dimensional structure having an external shape.

2) Description of the first device unit 200

The first device unit 200 accommodates the inverter module 240. In the illustrated embodiment, the first device unit 200 is located under the second device unit 300 to be described later.

This is because the inverter module 240 accommodated in the first device portion 200 is generally heavier than the filter 340 to be accommodated in the second device portion 300 to be described later.

As the first device unit 200 is positioned on the lower side of the inverter device 10, the center of gravity moves to the lower side so that the inverter device 10 can be stably supported.

The first device unit 200 and the second device unit 300 to be described later are physically separated by the partition wall 400. Detailed description thereof will be described later.

The first device unit 200 includes a first intake unit 210a, a first exhaust unit 220a, a first blower unit 230a, and an inverter module 240.

The first intake unit 210a provides a passage through which outside air can be introduced into the first device unit 200. The first intake portion 210a may be provided in the form of a through hole.

In the illustrated embodiment, the first intake portion 210a is formed on the front side of the first device portion 200, but its position can be changed.

After the outside air flowing into the first intake unit 210a cools the inverter module 240 accommodated inside the first device unit 200, it is discharged to the first exhaust unit 220a, which will be described later.

The first exhaust unit 220a provides a passage through which external air introduced into the first device unit 200 is discharged after heat exchange with the inverter module 240. The first exhaust part 220a may be provided in the form of a through hole.

The first blowing unit 230a provides a transfer force for the outside air to flow into the first device unit 200. The first blowing unit 230a may be provided as a structure that can induce the flow of air. In one embodiment, the first blower 230a may be provided in the form of a fan.

In the illustrated embodiment, the first blowing unit 230a is positioned adjacent to the first intake unit 210a, but its position is changeable. Alternatively, the first blowing unit 230a may be located adjacent to the first exhaust unit 220a or may be provided inside the first device unit 200.

The first blowing unit 230a is sufficient if it is provided where it can provide a transfer force for introducing outside air into the first device unit 200.

In the illustrated embodiment, the first device part 200 includes a third intake part 210c, a third exhaust part 220c, and a third blower part 230c.

The structures and functions of the third intake part 210c, the third exhaust part 220c, and the third blower part 230c are as described above for the first intake part 210a, the first exhaust part 220a, and the first blower part. Same as (230c).

Considering that a large amount of heat is generated in the inverter module 240 to be described later, the third intake unit 210c, the third exhaust unit 220c and the third intake unit 210c to cool the inside of the first device unit 200 more effectively It is preferable that the third blower 230c is additionally provided.

Therefore, the outside air for cooling the first device unit 200 is provided with a transfer force by the first blowing unit 230a and the third blowing unit 230c. The outside air flows into the first device part 200 through the first intake part 210a and the third intake part 210c, and then cools the inverter module 240 to be described later, and the first exhaust part 220c. And exhausted through the third exhaust unit 220c.

Separate power supply means (not shown) for transmitting electric power for driving the first blower 230a and the third blower 230c may be provided.

The inverter module 240 is a part that substantially receives a DC power and converts it into AC power.

The inverter module 240 includes a capacitor 241, a heat sink 242, an IGBT (isolated gate bipolar transistor) 243, an SMPS (switching mode power supply) 244, and a fuse. It may include.

Since the process of converting the DC power to the AC power by the inverter module 240 is a well-known technique, a detailed description thereof will be omitted.

The inverter module 240 receives DC power through the input terminal unit 150a from the main busbar 550 to be described later. In addition, the AC power converted by the inverter module 240 is transmitted to the main busbar 550 to be described later through the output terminal unit 150b.

In addition, the AC power converted by the inverter module 240 may be transmitted to a filter 340 to be described later to remove noise. To this end, an electrical means (not shown) may be provided to electrically connect the inverter module 240 and the filter 340 to be described later.

3) Description of the second device unit 300

The second device unit 300 accommodates the filter 340. In the illustrated embodiment, the second device unit 300 is located above the first device unit 200.

This is due to the fact that, as described above, the filter 340 accommodated in the second device part 300 is lighter than the inverter module 240 accommodated in the first device part 200.

The second device part 300 and the first device part 200 are physically separated by the partition wall part 400. Detailed description thereof will be described later.

The second device part 300 includes a second intake part 310, a second exhaust part 320, a second blower part 330, and a filter 340.

The second intake unit 310 provides a passage through which outside air can be introduced into the second device unit 300. The second intake part 310 may be provided in the form of a through hole.

In the illustrated embodiment, the second intake portion 310 is formed on the front side of the second device portion 300, but its position can be changed.

After the outside air flowing into the second intake unit 310 cools the filter 340 accommodated inside the second device unit 300, it is discharged to the second exhaust unit 320 to be described later.

The second exhaust unit 320 provides a passage through which the outside air introduced into the second device unit 300 is heat exchanged with the filter 340 and then discharged. The second exhaust unit 320 may also be provided in the form of a through hole.

The second blowing unit 330 provides a transfer force for the outside air to flow into the second device unit 300. The second blowing unit 330 may be provided as a structure that can induce the flow of air. In one embodiment, the second blower 330 may be provided in the form of a fan.

In the illustrated embodiment, the second blowing unit 330 is positioned adjacent to the second exhaust unit 320, but its position is changeable. Alternatively, the second blowing unit 330 may be positioned adjacent to the second exhaust unit 320 or may be provided inside the second device unit 300.

The second blowing unit 330 is sufficient if it is provided in a place capable of providing a transfer force for introducing outside air into the second device unit 300.

In the illustrated embodiment, the second device unit 300 does not have an additional structure for inflow of outside air in addition to the above-described second intake unit 310, second exhaust unit 320, and second blower unit 330. Does not.

This is because, as described above, the filter 340 accommodated in the second device unit 300 is due to a relatively small amount of heat generated compared to the inverter module 240 accommodated in the first device unit 200.

Of course, the second device unit 300 may also be provided with an additional structure for introducing outside air. This is preferably determined in consideration of the overall size of the inverter device 10, a coupling relationship with the inverter panel 500 to be described later, and the like.

Therefore, the outside air for cooling the second device unit 300 is provided with a transfer force by the second blowing unit 330. The outside air is introduced into the second device unit 300 through the second intake unit 310, and then the filter 340 to be described below is cooled and exhausted through the second exhaust unit 320.

A separate power supply means (not shown) for transmitting power for driving the second blower 330 may be provided.

The filter 340 is a part in which filtering for removing noise of AC power converted by the inverter module 240 is performed.

The process of filtering the AC power by the filter 340 is a well-known technique, so detailed description thereof will be omitted.

The filter 340 receives DC power through the input terminal unit 150a from the main busbar 550 to be described later. In addition, the AC power filtered by the filter 340 is transmitted to the main busbar 550 to be described later through the output terminal unit 150b.

In order for the filter 340 to receive the AC power converted by the inverter module 240, an electrical means (not shown) for connecting the inverter module 240 and the filter 340 to be energized may be provided.

The operation of the first blower 230a, the second blower 330 and the third blower 230c, the operating speed, and the like may be controlled independently of each other.

4) Description of the partition 400

The partition wall 400 partitions the first device portion 200 and the second device portion 300. Specifically, the first device portion 200 and the second device portion 300 are physically separated by the partition wall 400.

This is to prevent mixing of the outside air flowing into the first device unit 200 and the second device unit 300 as described later. Specifically, the heat generation amount of the inverter module 240 accommodated in the first device unit 200 is higher than that of the filter 340 accommodated in the second device unit 300 as described above.

In this case, assuming that the external air introduced into the first device unit 200 and the second device unit 300 is mixed because the partition 400 is not provided, the air of the first device unit 200 having high heat is discharged. There is a concern that the filter 340 may be damaged due to high temperature by flowing into the second device unit 300.

In addition, when the air cooled by the filter 340 in the second device unit 300 flows into the first device unit 200, it is obvious that it will have a relatively high temperature compared to outside air, so cooling of the inverter module 240 There is a fear that the efficiency will decrease.

Therefore, the partition wall part 400 physically separates the first device part 200 and the second device part 300 to prevent the outside air flowing into the device parts 200 and 300 from mixing with each other.

The partition 400 may be formed of a material having low thermal conductivity.

The position of the partition 400 may be changed according to the sizes of the first device unit 200 and the second device unit 300. As an example, when the size of the first device unit 200 is smaller than the illustrated embodiment, the position of the partition 400 may be moved downward.

(2) Description of the inverter panel 500

The inverter panel 500 according to the embodiment of the present invention can accommodate the inverter device 10. In addition, the plurality of inverter panels 500 may be configured to be electrically connected to each other to thereby configure the power conversion device 1.

Hereinafter, the inverter panel 500 according to an embodiment of the present invention will be described in detail with reference to FIGS. 4 to 7 and 13 to 15 again.

The inverter panel 500 accommodates the inverter device 10. In the illustrated embodiment, each inverter panel 500 accommodates the inverter device 10 on the upper side and the lower side, respectively. That is, one inverter panel 500 can accommodate two inverter devices 10.

The number of inverter devices 10 that each inverter panel 500 can accommodate may be changed.

In the illustrated embodiment, the inverter device 10 is elongated in the upper and lower directions and accommodated in the inverter panel 500. Alternatively, the inverter device 10 may be laid down in the left and right directions and accommodated in the inverter panel 500.

In addition, a door (not shown) that can be opened and closed may be provided on the front side of the inverter panel 500. Therefore, the front side of the inverter panel 500 is normally closed, and when the insertion and removal of the inverter device 10 is required, the front side of the inverter panel 500 may be opened by manipulating a door (not shown).

The inverter panel 500 includes a first inverter accommodating portion 510, a second inverter accommodating portion 520, and a main busbar 550.

The first inverter accommodating part 510 is a space in which the inverter device 10 is accommodated. In the illustrated embodiment, the first inverter accommodating portion 510 is formed as a space located above the inverter panel 500.

An opening is formed on the front side of the first inverter accommodating part 510 so that the inverter device 10 can be accommodated inside the first inverter accommodating part 510 through the opening.

A first panel intake part 511 is formed on the front side of the first inverter accommodating part 510.

The first panel intake part 511 provides a passage through which external air may be introduced into the first inverter accommodating part 510. The first panel intake part 511 may be provided in the form of a through hole.

The first panel exhaust part 512 provides a passage through which the outside air introduced into the first inverter accommodating part 510 can be discharged outside the first inverter accommodating part 510. The first panel exhaust part 512 may be provided in the form of a through hole.

As described above, the inverter device 10 accommodated in the first inverter accommodating unit 510 also has a structure for introducing and discharging outside air. In addition, the first inverter accommodating portion 510 also has a structure for introducing and discharging outside air.

That is, the outside air is the first panel intake part 511, the first intake part 210a to the third intake part 230a, the first exhaust part 210c to the third exhaust part 230c, and the first panel exhaust part It is possible to cool the inverter device 10 passing through the 512 in order.

A detailed description of the external air flow process will be described later.

The second inverter accommodating part 520 is a space in which the inverter device 10 is accommodated. In the illustrated embodiment, the second inverter accommodating portion 520 is formed as a space located below the inverter panel 500.

An opening is formed on the front side of the second inverter accommodating part 520, and the inverter device 10 may be accommodated inside the second inverter accommodating part 520 through the opening.

The second panel intake part 521 is formed on the front side of the second inverter accommodating part 520.

The second panel intake unit 521 provides a passage through which outside air may be introduced into the second inverter accommodating unit 520. The second panel intake part 521 may be provided in the form of a through hole.

The second panel exhaust unit 522 provides a passage through which the outside air introduced into the second inverter receiving unit 520 can be discharged outside the second inverter receiving unit 520. The second panel exhaust part 522 may be provided in the form of a through hole.

A flow path of the outside air is formed after the inverter device 10 is accommodated by the outside air inlet and exhaust structure provided by the second inverter receiving unit 520.

That is, the outside air is the second panel intake section 521, the first intake section 210a to the third intake section 230a, the first exhaust section 210c to the third exhaust section 230c, and the second panel exhaust section The inverter device 10 can be cooled while passing through the 522 in order.

A detailed description of the external air flow process will be described later.

The main bus bar 550 receives DC power from the outside and supplies it to the inverter device 10, and receives AC power converted by the inverter device 10 and transmits the converted AC power to an external load.

In the illustrated embodiment, the main busbar 550 is positioned to be biased to the rear side of the inverter panel 500, but the position of the main busbar 550 is changeable.

However, in any case, it is sufficient if it can be electrically connected to the inverter device 10 accommodated in the inverter panel 500.

The main busbar 550 is electrically connected to the power input panel 610 of the power panel 600. Therefore, DC power can be received from the power input panel 610 to the main bus bar 550.

In addition, the main busbar 550 is electrically connected to the power output panel 620 of the power panel 600. Therefore, the main bus bar 550 can transfer the AC power received from the inverter device 10 to an external load.

The main busbar 550 of each inverter panel 500 may be electrically connected to the main busbar 550 of the other inverter panel 500.

That is, in the illustrated embodiment, the plurality of inverter panels 500 are arranged in a line so that the left and right sides contact each other. At this time, the main busbars 550 of each inverter panel 500 may be connected to each other so as to be energized.

Therefore, the power conversion capacity of the power conversion device 1 can be changed only by changing the number of inverter panels 500 provided in the power conversion device 1.

That is, the inverter device 10 having a predetermined power conversion capacity is accommodated in each inverter panel 500. As each of the plurality of inverter panels 500 is provided, the power conversion capacity of the entire power conversion device 1 is also increased.

Alternatively, the main bus bar 550 is not provided in each inverter panel 500 but is provided separately, and each inverter panel 500 may be provided in a form that is electrically connected to the main bus bar 550.

In the illustrated embodiment, the main busbar 550 is provided as a first main busbar 550a and a second main busbar 550b (see FIGS. 14 and 15 ).

This is because the inverter panel 500 includes a first inverter receiving portion 510 on the upper side and a second inverter receiving portion 520 on the lower side.

That is, the first main bus bar 550a is electrically connected to the inverter device 10 accommodated in the first inverter accommodating part 510. In addition, the second main busbar 550b is electrically connected to the inverter device 10 accommodated in the second inverter accommodating part 520.

Alternatively, the main bus bar 550 may be provided in a singular number. That is, one main bus bar 550 may be electrically connected to both the inverter device 10 accommodated in the first inverter accommodating part 510 and the second inverter accommodating part 520.

The main busbar 550 includes a port 551.

The port 551 is a means for electrically connecting the main busbar 550 and the inverter device 10. Specifically, the main bus bar 550 is connected to the port 551 so as to be energized.

The port 551 is coupled to the input terminal unit 150a and the output terminal unit 150b provided in the inverter device 10, so that the inverter device 10 and the main bus bar 550 are electrically connected.

Considering that one effect of the inverter device 10 according to an embodiment of the present invention can be easily accommodated and separated in the inverter panel 500, the port 551 has an input terminal portion 150a and an output terminal portion 150b. It is preferable to be detachably coupled with.

The port 551 includes a first port 551a and a second port 552b.

The first port 551a connects the first main busbar 550a and the inverter device 10 so as to be energized. As described above, the inverter device 10 is the inverter device 10 accommodated in the first inverter receiving unit 510.

The second port 551b connects the second main bus bar 550b and the inverter device 10 so as to be energized. As described above, the inverter device 10 is the inverter device 10 accommodated in the second inverter receiving unit 520.

(3) Description of the indoor inverter panel 500a

The power conversion device 1 according to an embodiment of the present invention includes an indoor inverter panel 500a.

The indoor inverter panel 500a assumes that the power conversion device 1 is provided indoors. In addition, the indoor inverter panel 500a not only accommodates the inverter device 10 therein, but also includes a PCB device 534 to be described later.

Therefore, the indoor inverter panel 500a is that the number of the inverter devices 10 is accommodated compared to the above-described inverter panel 500, and that it includes the PCB device accommodating part 530 for accommodating the PCB device 534. There is a difference.

Hereinafter, an indoor inverter panel 500a according to an embodiment of the present invention will be described in detail with reference to FIGS. 16 to 19.

The indoor inverter panel 500a according to the illustrated embodiment includes an indoor housing 501a, an indoor door 502a, a first inverter accommodating part 510, a PCB device accommodating part 530, and a base part 540. .

The indoor housing 501a forms the outside of the indoor inverter panel 500a. In the illustrated embodiment, the indoor housing 501a has a rectangular parallelepiped shape that is elongated to the upper and lower sides, but its shape is changeable.

The indoor door 502a is located on the front side of the indoor housing 501a. The indoor door 502a may be provided in any structure that can open or close the front side of the indoor inverter panel 500a.

A first panel intake portion 511 is formed in the indoor door 502a. Since the structure and function of the first panel intake unit 511 are as described above, a redundant description will be omitted.

A first inverter accommodating part 510 and a PCB device accommodating part 530 are formed inside the indoor inverter panel 500a.

The first inverter accommodating part 510 is located above the PCB device accommodating part 530. Since the structure and function of the first inverter accommodating part 510 are as described above, a redundant description will be omitted.

The PCB device accommodating part 530 is located under the first inverter accommodating part 510. Inside the PCB device accommodating portion 530, a PCB device 534 for controlling the power conversion device 1 is accommodated. The PCB device 534 is electrically connected to the inverter device 10 and may be configured to control the inverter device 10.

The PCB device accommodating portion 530 includes an outside air inlet portion 531, an outside air outlet portion 532, a panel blowing portion 533, and a PCB device 534.

In addition, as shown, the PCB device receiving portion 530 may be provided with a filter 340.

The outside air inlet 531 provides a passage through which the outside air for cooling the PCB device accommodated in the PCB device receiving unit 530 is introduced.

In the illustrated embodiment, the outside air inlet 531 is formed as an opening under the PCB device receiving portion 530. The outside air inlet portion 531 is positioned to be aligned with the outside air supply portion 542 of the base portion 540 to be described later.

The outside air inlet 531 may be formed at an arbitrary position where the outside air can be introduced into the PCB device receiving portion 530. However, as will be described later, the position of the outside air inlet 531 is preferably determined corresponding to the position of the outside air supply unit 542 to be described later.

The outside air discharge unit 532 provides a passage through which the outside air introduced into the PCB device receiving unit 530 exchanges heat with the PCB device 534 and can be discharged.

In the illustrated embodiment, the outside air discharge unit 532 is formed as an opening on the rear side of the indoor inverter panel 500a. The outside air discharge unit 532 may be formed at an arbitrary position where air inside the PCB device receiving unit 530 can be discharged outside the PCB device receiving unit 530.

A panel blowing portion 533 is provided at the outside air discharge portion 532.

The panel blower 533 provides a transfer force for the outside air to flow into the indoor inverter panel 500a. The panel blower 533 may be provided as a structure capable of inducing the flow of air. In one embodiment, the panel blower 533 may be provided in the form of a fan.

In the illustrated embodiment, the panel blowing portion 533 is positioned adjacent to the outside air discharge portion 532, but its position is changeable. Alternatively, the panel blowing portion 533 may be located adjacent to the outside air inlet portion 531 or may be provided inside the PCB device receiving portion 530.

The panel blower 533 is sufficient if a place capable of providing a transfer force for introducing outside air into the PCB device receiving portion 530 is provided.

The base portion 540 is located below the indoor housing 501a of the indoor inverter panel 500a. The base portion 540 spaces the indoor inverter panel 500a a predetermined distance from the ground. In addition, the base portion 540 forms a passage through which outside air for cooling the PCB device receiving portion 530 flows.

The shape of the base portion 540 is preferably determined to correspond to the shape of the indoor housing 501a.

The base portion 540 includes a first base intake portion 541a, a second base intake portion 541b, and an external air supply portion 542.

The first base intake portion 541a is formed on the front side of the base portion 540. The first base intake portion 541a forms a passage through which outside air can be introduced into the base portion 540. The first base intake portion 541a may be formed in the form of a through hole.

In the illustrated embodiment, the first base intake portion 541a is formed on the front left and right sides of the base portion 540, respectively, but its position and number are changeable.

The second base intake portion 541b is formed on the rear side of the base portion 540. The second base intake portion 541b forms a passage through which outside air can be introduced into the base portion 540. The second base intake portion 541b may be formed in the form of a through hole.

In the illustrated embodiment, the second base intake portion 541b is formed on the rear left and right sides of the base portion 540, respectively, but its position and number are changeable.

The outside air supply unit 542 provides a passage through the base unit 540 to allow outside air introduced into the base unit 540 to enter the PCB device receiving unit 530. The outside air supply unit 542 may be formed as an opening.

The outside air supply unit 542 and the outside air inlet unit 531 of the PCB device receiving unit 530 are aligned with each other. That is, the outside air discharged from the outside air supply unit 542 does not leak to other places and flows into the PCB device receiving unit 530 through the outside air inlet unit 531.

At this time, the transfer force for the outside air to flow may be naturally generated, or may be provided by the panel blower 533.

A detailed description of the flow of outside air in the indoor inverter panel 500a will be described later.

In addition, although not shown, the main bus bar 550 described above may be provided in the indoor inverter panel 500a. It is as described above that the main busbar 550 can be electrically connected to the inverter device 10, the PCB device 534, and the filter 340.

(4) Description of the outdoor inverter panel 500b

The power conversion device 1 according to an embodiment of the present invention includes an outdoor inverter panel 500b.

The outdoor inverter panel 500b assumes that the power converter 1 is provided outdoors. In addition, the outdoor inverter panel 500b not only accommodates the inverter device 10 therein, but also includes a PCB device 534.

Therefore, the outdoor inverter panel 500b is that the number of inverter devices 10 is accommodated compared to the above-described inverter panel 500, and that it includes the PCB device accommodating part 530 for accommodating the PCB device 534. There is a difference.

Hereinafter, an outdoor inverter panel 500b according to an embodiment of the present invention will be described in detail with reference to FIGS. 20 to 23.

The outdoor inverter panel 500a according to the illustrated embodiment includes an outdoor housing 501b, an outdoor door 502b, a first inverter accommodating part 510, a PCB device accommodating part 530, and a base part 540. .

The outdoor housing 501b forms the outside of the outdoor inverter panel 500a. In the illustrated embodiment, the outdoor housing 501b has a rectangular parallelepiped shape that is elongated to the upper side and the lower side, but its shape is changeable.

A roof is provided above the outdoor housing 501b. Therefore, even if the outdoor inverter panel 500b is provided outdoors, rain or snow may be prevented from flowing into the outdoor housing 501b.

The outdoor door 502b is located on the front side of the outdoor housing 501b. The outdoor door 502b may be provided in any structure that can open or close the front side of the outdoor inverter panel 500a.

A first panel intake portion 511 is formed in the outdoor door 502b. Since the structure and function of the first panel intake unit 511 are as described above, a redundant description will be omitted.

Inside the outdoor inverter panel 500a, a first inverter accommodating part 510 and a PCB device accommodating part 530 are formed.

The structures and functions of the first inverter accommodating part 510, the PCB device accommodating part 530, and the base part 540 are the same as those of the indoor inverter panel 500b described above. Therefore, the overlapping description will be omitted below.

(5) Description of power panel 600

The power conversion device 1 according to an embodiment of the present invention includes a power panel 600 for receiving power from the outside and transmitting power to the outside.

Hereinafter, the power panel 600 according to the illustrated embodiment will be described in detail with reference to FIGS. 4 and 5 and FIGS. 24 to 26.

The power panel 600 is located adjacent to the inverter panel 500. In addition, the power panel 600 is electrically connected to the inverter panel 500.

The power panel 600 receives DC power from the outside and transmits it to the inverter panel 500. The DC power delivered to the inverter panel 500 is transmitted to the inverter device 10 and converted into AC power.

In addition, the power panel 600 receives AC power converted by the inverter device 10 from the inverter panel 500. The AC power delivered to the power panel 600 is transmitted to an external load.

The power panel 600 includes a power input panel 610 and a power output panel 620.

The power input panel 610 receives DC power from the outside. To this end, the power input panel 610 may be electrically connected to the outside.

The power input panel 610 includes a power input terminal unit 611.

The power input terminal unit 611 is a channel to which the power input panel 610 and external power are connected. The power input terminal unit 611 is electrically connected to an external power source by an input conductor cable (not shown).

The DC power received by the power input panel 610 is transmitted to the inverter device 10 through the main busbar 550 of the inverter panel 500. To this end, a power supply means (not shown) may be provided to connect the power input terminal part 611 and the main bus bar 550 to be energized.

The number of power input terminal portions 611 is preferably determined to correspond to the number of input power conversion lines 711. For example, in the case of DC power, the input power conversion line 711 may be provided in two, and accordingly, the number of power input terminal parts 611 is also provided in two.

In the illustrated embodiment, the power input panel 610 is located on the right side of the plurality of inverter panels 500. The position of the power input panel 610 may be changed.

A vent (not shown) is formed on the front side of the power input panel 610 to allow outside air to cool the inside of the power input panel 610.

In addition, an operation unit (not shown) such as a switch is provided on the front side of the power input panel 610, and a control signal for operation of the power conversion device 1 may be applied.

An input line conversion panel 710 to be described later may be provided on the other side facing the one side adjacent to the inverter panel 500 of the power input panel 610, that is, on the right side in the illustrated embodiment. This will be described later.

The power output panel 620 transfers AC power to the outside. To this end, the power output panel 620 may be electrically connected to the outside.

The power output panel 620 includes a power output terminal portion 621.

The power output terminal unit 621 is a channel to which the power output panel 620 and an external load are connected. The power output terminal unit 621 is electrically connected to an external power source by an output lead cable (not shown).

The AC power delivered from the power output panel 620 to an external load is transmitted to the power output panel 620 through the main busbar 550 of the inverter panel 500. To this end, a power supply means (not shown) for connecting the power output terminal part 621 and the main bus bar 550 to be energized may be provided.

The number of power output terminal portions 621 is preferably determined to correspond to the number of output power conversion lines 721. For example, in the case of AC power, three output power conversion lines 721 may be provided. Accordingly, the number of power output terminal parts 621 is also provided in three.

In the illustrated embodiment, the power output panel 620 is located on the left side of the plurality of inverter panels 500. The position of the power output panel 620 may be changed.

A vent (not shown) is formed on the front side of the power output panel 620 to allow outside air to cool the inside of the power output panel 620.

An output line conversion panel 720 to be described later may be provided on the other side of the power output panel 620, which is adjacent to one side adjacent to the inverter panel 500, that is, on the left side in the illustrated embodiment. This will be described later.

(6) Description of the line conversion panel 700

The power conversion device 1 according to an embodiment of the present invention includes a line conversion panel 700 for changing the input path of the DC power and the output path of the AC power.

The line conversion panel 700 is positioned adjacent to the power panel 600 and is electrically connected to the power panel 600. The line conversion panel 700 is a kind of module and may be coupled to the power panel 600 in an add-on method.

Hereinafter, the line conversion panel 700 according to the illustrated embodiment will be described in detail with reference to FIGS. 24 to 27.

The line converting panel 700 transfers power to the power panel 600 or changes a path for receiving power from the power panel 600.

That is, the line conversion panel 700 receives DC power from the outside and transmits it to the power panel 600. In addition, the line conversion panel 700 receives AC power from the power panel 600 and transmits it to an external load.

The line conversion panel 700 includes an input line conversion panel 710 and an output line conversion panel 720.

The input line conversion panel 710 receives DC power from the outside and transmits the received DC power to the power input panel 610.

The input line conversion panel 710 is positioned adjacent to the power input panel 610. In addition, the input line conversion panel 710 is electrically connected to the power input panel 610.

In the illustrated embodiment, the input line conversion panel 710 is positioned adjacent to the right side of the power input panel 610, but its position may be changed. However, regardless of where the input line conversion panel 710 is located, the input line conversion panel 710 is preferably located adjacent to the power input panel 610.

The input line conversion panel 710 includes an input power conversion line 711, an input opening 712, and an input line terminal portion 713.

The input power conversion line 711 connects the input line terminal part 713 to be described later and the power input terminal part 611 of the power input panel 610 to be energized.

The shape of the input power conversion line 711 may be changed. Specifically, the shape of the input power conversion line 711 may be changed according to the position of the input line terminal unit 713 and the position of the power input terminal unit 611 to be described later, and the structure of the input line conversion panel 710. .

Accordingly, the position of the input line terminal unit 713 and the position of the power input terminal unit 611 to be described later may be freely determined by the input power conversion line 711.

The input opening 712 provides a passage through which an external input conductor cable (not shown) can be connected to the input line terminal unit 713 to be described later.

In the illustrated embodiment, the input openings 712 are formed on the upper, right, and rear sides of the input line conversion panel 710, respectively. In addition, input openings 712 are formed on the right side of the input line conversion panel 710 on the upper side and the lower side, respectively. That is, the input opening 712 may be formed on one side of the input line conversion panel 710 that is not adjacent to the power input panel 610.

This is to increase the degree of freedom of positioning of the input line terminal unit 713 to be described later. That is, as the position of the input opening 712 is diversified, the position of the input line terminal 713 for receiving DC power from the outside may be variously set by the power converter 1.

The input opening 712 to which the input conductor cable (not shown) is not connected may be provided with a cover (not shown) so as to prevent entry of foreign matter or the like.

The input line terminal unit 713 is a channel through which DC power is transmitted from the outside. The input line terminal unit 713 is connected to an external power source and a conductor input cable (not shown).

In one embodiment, the input line terminal portion 713 and the conductor input cable (not shown) may be screwed. In this case, it is possible to securely fasten the input line terminal portion 713 and the conductor input cable (not shown).

A plurality of input line terminal parts 713 may be provided. Specifically, the input line terminal unit 713 may be provided for each of the plurality of input openings 712, respectively. Alternatively, the input line terminal part 713 may be provided at any one of the plurality of input openings 712. In this embodiment, a path for receiving DC power may be diversified. Therefore, the user's convenience can be improved.

The output line conversion panel 720 receives DC power from the outside and transmits the received DC power to the power output panel 620.

The output line conversion panel 720 is positioned adjacent to the power output panel 620. In addition, the output line conversion panel 720 is electrically connected to the power output panel 620.

In the illustrated embodiment, the output line conversion panel 720 is positioned adjacent to the left side of the power output panel 620, but the position may be changed. However, even if the output line conversion panel 720 is located anywhere, the output line conversion panel 720 is preferably located adjacent to the power output panel 620.

The output line conversion panel 720 includes an output power conversion line 721, an output opening 722, and an output line terminal portion 723.

The output power conversion line 721 connects the output line terminal unit 723 to be described later and the power output terminal unit 621 of the power output panel 620 so as to be energized.

The shape of the output power conversion line 721 may be changed. Specifically, the shape of the output power conversion line 721 may be changed according to the position of the output line terminal unit 723 and the position of the power output terminal unit 621 to be described later, and the structure of the output line conversion panel 720. .

Accordingly, the position of the output line terminal unit 723 and the position of the power output terminal unit 621 to be described later by the output power conversion line 721 can be freely determined.

The output opening 722 provides a passage through which an external output conductor cable (not shown) can be connected to the output line terminal unit 723 to be described later.

In the illustrated embodiment, the output openings 722 are formed on the upper, left and rear sides of the output line conversion panel 720, respectively. In addition, output openings 722 are formed on the upper and lower sides of the output line conversion panel 720, respectively. That is, the output opening 722 may be formed on one side of the output line conversion panel 720 that is not adjacent to the power output panel 620.

This is to increase the degree of freedom in positioning the output line terminal portion 723 to be described later. That is, as the position of the output opening 722 is diversified, the position of the output line terminal unit 723 for transmitting AC power from the power conversion device 1 to an external load can be variously set.

The output opening 722 to which the output conductor cable (not shown) is not connected may be provided with a cover (not shown) so as to prevent the inflow of foreign substances or the like.

The output line terminal unit 723 is a channel through which AC power is transmitted to an external load. The output line terminal portion 723 is connected to an external power source and a conductor output cable (not shown).

In one embodiment, the output line terminal portion 723 and the conductor output cable (not shown) may be screwed. In this case, it is possible to securely fasten the output line terminal portion 723 and the conductor output cable (not shown).

A plurality of output line terminal units 723 may be provided. Specifically, the output line terminal unit 723 may be provided for each of the plurality of output openings 722, respectively. Alternatively, the output line terminal part 723 may be provided at any one of the plurality of output openings 722. In this embodiment, a path for transferring AC power may be diversified. Therefore, the user's convenience can be improved.

2. Description of the air flow process of the inverter device 10 according to the embodiment of the present invention

Inverter device 10 according to an embodiment of the present invention may be introduced into the first device unit 200 and the second device unit 300, respectively. The introduced outside air may cool and discharge the inverter module 240 of the first device unit 200 and the filter 340 of the second device unit 300.

Hereinafter, an air flow process in the inverter device 10 according to an embodiment of the present invention will be described in detail with reference to FIG. 28.

First, a flow process of air in the first device unit 200 will be described.

When the first blowing unit 230a and the third blowing unit 230c are operated, outside air passes through the first intake unit 210a and the third intake unit 210c and flows into the first device unit 200. . At this time, the first blowing portion 230a and the third blowing portion 230c provide the transfer force for the flow of outside air as described above.

In addition, even if the first blowing unit 230a and the third blowing unit 230c are not operated, outside air may be introduced into the first device unit 200 by natural forces such as wind.

The outside air continuously flows into the first device unit 200 by the operation of the first blowing unit 230a and the third blowing unit 230c. Therefore, the outside air introduced into the first device unit 200 is moved to the rear side of the first device unit 200 by being pushed to the outside air that is subsequently introduced.

At this time, the inverter module 240 is positioned between the first intake part 210a and the third intake part 210c and the first exhaust part 220a and the third exhaust part 220c. Therefore, the inverter module 240 is cooled by heat exchange of the outside air with the inverter module 240.

Through the above-described process, the outside air that has flowed inside the first device unit 200 reaches the rear side of the first device unit 200, and then is removed through the first exhaust unit 220a and the third exhaust unit 220c. 1 is discharged from the device 200.

Next, the flow of air in the second device unit 300 will be described.

When the second blowing unit 330 is operated, outside air passes through the second intake unit 310 and flows into the second device unit 300. At this time, the second blowing unit 330 provides the transfer force for the flow of outside air as described above.

In addition, even if the second blowing unit 330 is not operated, outside air may be introduced into the second device unit 300 by natural forces such as wind.

The outside air continuously flows into the second device unit 300 by the operation of the second blowing unit 330. Therefore, the outside air introduced into the second device unit 300 is moved to the rear side of the second device unit 300 by being pushed to the outside air that is subsequently introduced.

At this time, a filter 340 is positioned between the second intake part 310 and the second exhaust part 320. Therefore, the filter 340 is cooled by heat exchange of the outside air with the filter 340.

The outside air flowing inside the second device unit 300 through the above-described process reaches the rear side of the second device unit 300 and then discharges from the second device unit 300 through the second exhaust unit 320. do.

In this case, it is as described above that the first blower 230a, the second blower 330, and whether the third blower 230c is operated and the operating speed can be independently controlled.

As described above, the first device part 200 and the second device part 300 are physically separated by the partition wall part 400.

Therefore, the outside air flowing inside the first device part 200 and the outside air flowing inside the second device part 300 are not mixed.

Therefore, the inverter module 240 and the filter 340 can be effectively cooled without being influenced by each other.

Due to the fact that the amount of heat generated by the inverter module 240 is higher than the amount of heat generated by the filter 340, the third intake unit 210c, the third exhaust unit 220c, and the third blowing unit in the first device unit 200 It is as described above that the (230c) is further provided.

3.1. Description of the air flow process of the inverter panel 500 according to an embodiment of the present invention

Outside air for cooling the inverter device 10 accommodated therein may be introduced into the inverter panel 500 according to an embodiment of the present invention. The introduced outside air may cool and discharge the inverter module 240 and the filter 340 provided in the inverter device 10.

Hereinafter, an air flow process of the inverter panel 500 according to an embodiment of the present invention will be described in detail with reference to FIG. 29.

As described above, the first inverter accommodating part 510 and the second inverter accommodating part 520 include a first panel intake part 511 and a second panel intake part 521, respectively.

When the inverter device 10 accommodated in the first inverter receiving unit 510 is operated, the first blowing unit 230a, the second blowing unit 330, and the third blowing unit 230c provided in the inverter device 10 are operated. Is working.

The first blowing unit 230a, the second blowing unit 330, and the third blowing unit 230c provide a transfer force for external air to flow into the inverter panel 500. Accordingly, the outside air passes through the first panel intake part 511 and the second panel intake part 521 and flows into the inverter panel 500.

The outside air introduced into the inverter panel 500 is still in a state of being supplied with a transfer force by the first blowing unit 230a, the second blowing unit 330, and the third blowing unit 230c. Therefore, the outside air flows into the first device portion 200 and the second device portion 300 of the inverter device 10.

The process in which the outside air is discharged after flowing into the inverter device 10 is as described above.

The outside air discharged from the inverter device 10 is still in the state of being supplied with the transfer force by the first blowing unit 230a, the second blowing unit 330, and the third blowing unit 230c. Therefore, the outside air is moved to the rear side of the inverter panel 500.

As described above, the first panel exhaust section 512 and the second panel exhaust section 522 are formed on the rear side of the inverter panel 500. Therefore, the outside air passes through the first panel exhaust section 512 and the second panel exhaust section 522 and is discharged to the outside of the inverter panel 500.

In summary, each panel intake section 511, 521, each intake section 210a, 310, 210c, inverter device 10, each exhaust section 220a, 320, 220c, and each panel exhaust section 512, 522 The outside air inlet and outlet flow paths are formed.

3.2. Description of the air flow process of the indoor inverter panel 500a and the outdoor inverter panel 500b according to an embodiment of the present invention

Outside air for cooling the inverter device 10 and the PCB device 534 accommodated therein may be introduced into the indoor inverter panel 500a and the outdoor inverter panel 500b according to an embodiment of the present invention.

The introduced outside air may cool and discharge the inverter module 240 and the filter 340 and the PCB device 534 provided in the inverter device 10.

Hereinafter, an air flow process of the indoor inverter panel 500a and the outdoor inverter panel 500b according to an embodiment of the present invention will be described in detail with reference to FIG. 30.

Since the external air flow process in the first inverter accommodating part 510 is as described above, a duplicate description will be omitted.

The air flow process in the PCB device receiving unit 530 is as follows.

As described above, the PCB device accommodating portion 530 includes an outside air inlet portion 531, an outside air outlet portion 532, and a panel blowing portion 533. In addition, a base portion 540 is positioned below the PCB device accommodating portion 530.

When power is applied to the PCB device 534, the panel blower 533 is operated. Alternatively, the panel blower 533 may be operated even when power is applied to the indoor inverter panel 500a and the outdoor inverter panel 500b.

As the panel blower 533 is operated, the outside air is provided with a transfer force for moving toward the first base intake 541a and the second base intake 541b of the base 540.

This is due to the fact that the outside air inlet portion 531 of the PCB device accommodating portion 530 and the outside air supply portion 542 of the base portion 540 are aligned with each other to enable fluid communication.

The outside air flowing into the base part 540 through the first base intake part 541a and the second base intake part 541b passes through the outside air supply part 542. At this time, the outside air is not only provided with a transfer force to face the PCB device receiving portion 530 by the panel blowing portion 533, but is also pushed by the outside air flowing into the base portion 540.

The outside air is introduced into the PCB device receiving portion 530 through the outside air inlet portion 531 of the PCB device receiving portion 530.

The outside air flowing into the PCB device accommodating portion 530 is still supplied with the transfer force by the panel blowing portion 533. Accordingly, the outside air is moved toward the panel blowing portion 533 located at the rear side of the PCB device receiving portion 530.

At this time, the outside air is moved toward the panel blower 533 and heat exchanged with the PCB device 534 or the filter 340 to cool the PCB device 534 or the filter 340.

As described above, the outside air discharge unit 532 is formed on the rear side of the PCB device receiving unit 530. Accordingly, the outside air is discharged to the outside of the indoor inverter panel 500a and the outdoor inverter panel 500b through the outside air discharge unit 532.

In summary, the outside air inlet and outlet flow paths including each of the base intake parts 541a, 541b, the outside air supply part 542, the outside air inlet part 531, the PCB device receiving part 530, and the outside air outlet part 532 are formed. do.

4. Description of an aspect in which the paths of the input power and the output power of the power conversion device 1 according to the embodiment of the present invention are changed

The power conversion device 1 according to the embodiment of the present invention includes a line conversion panel 700. As described above, the transmission position of the DC power and the transmission position of the AC power may be changed by the line conversion panel 700.

Hereinafter, an aspect in which the power input and output paths of the power conversion device 1 according to the embodiment of the present invention is changed will be described in detail with reference to FIG.

As described above, the line conversion panel 700 may be positioned adjacent to the power panel 600.

Specifically, the input line conversion panel 710 is located on one side of the power input panel 610 and adjacent to the right side of the power input panel 610 in the illustrated embodiment. In addition, the output line conversion panel 720 is located on one side of the power output panel 620 and adjacent to the left side of the power output panel 620 in the illustrated embodiment.

An inverter panel space S is formed between the power input panel 610 and the power output panel 620, so that the inverter panel 500 can be coupled.

The power input terminal unit 611 provided on one side of the power input panel 610 is electrically connected to one side of the input power conversion line 711 provided on the input line conversion panel 710.

In addition, the other side of the input power conversion line 711 is electrically connected to the input line terminal unit 713.

At this time, the input line terminal portion 713 may be provided at a position where the input opening 712 is formed.

As described above, the input opening 712 may be located on the right side, the upper side, and the rear side of the input line conversion panel 710. Therefore, the input line terminal unit 713 may also be located on the right, upper and rear sides of the input line conversion panel 710.

The input line terminal portion 713 is electrically connected to an external input conductor cable (not shown). Accordingly, the external DC power is transmitted to the power input panel 610 through an input conductor cable (not shown), an input line terminal unit 713, an input power conversion line 711, and a power input terminal unit 611.

The power output terminal unit 621 provided on one side of the power output panel 620 is electrically connected to one side of the output power conversion line 721 provided on the output line conversion panel 720.

In addition, the other side of the output power conversion line 721 is electrically connected to the output line terminal unit 723.

At this time, the output line terminal portion 723 may be provided at a position where the output opening 722 is formed.

As described above, the output opening 722 may be located on the left, upper and rear sides of the output line conversion panel 720. Accordingly, the output line terminal unit 723 may also be located on the left, upper and rear sides of the output line conversion panel 720.

The output line terminal unit 723 is electrically connected to an external output conductor cable (not shown). The AC power converted accordingly is transmitted to an external load through the power output terminal unit 621, the output power conversion line 721, the output line terminal unit 723, and an output lead cable (not shown).

5. Explanation of the effect of the power conversion device 1 according to the present invention

The power conversion device 1 according to the invention comprises a modular inverter device 10. Each inverter device 10 includes both an inverter module 240 for converting DC power to AC power and a filter 340 for filtering the converted AC power.

Therefore, the power conversion capacity of the entire power conversion device 1 can be adjusted only by changing the number of inverter devices 10.

In addition, a space for separately receiving the inverter device and the filter is not required according to the modularization of the inverter device 10. Therefore, since the power conversion device 1 can be miniaturized, the space required to install the power conversion device 1 can be reduced.

In addition, the outside air for cooling the inverter device 10 flows into the first device unit 200 in which the inverter module 240 is accommodated, and the second device unit 300 in which the filter 340 is accommodated. In addition, the introduced outside air is not mixed with each other by the partition 400.

Therefore, effective cooling is possible according to the amount of heat generated in each of the device parts 200 and 300.

The inverter panel 500 in which the inverter device 10 is accommodated is also provided with respective panel intake parts 511 and 521 and each panel exhaust part 512 and 522 for inflow of outside air. Therefore, effective cooling of the inverter device 10 accommodated inside the inverter panel 500 is possible.

In addition, each inverter panel 500 can be scaled up by being electrically connected to each other. Therefore, even when it is necessary to change the power conversion capacity during use, the power conversion capacity can be changed simply by adding or reducing the inverter panel 500.

In addition, as the line conversion panel 700 is provided in an add-on method, it is possible to set various input directions of DC power and output directions of AC power. Therefore, since the input and output directions of the power source can be set according to the environment in which the power conversion device 1 is installed, user convenience can be improved.

Although described above with reference to preferred embodiments of the present invention, those skilled in the art may variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can.

1: Power converter
10: inverter device
100: housing
150a: input terminal
150b: output terminal
200: first device unit
210a: first intake section
210c: third intake
220a: first exhaust
220c: third exhaust
230a: first blower
230c: third blower
240: inverter module
241: capacitor
242: heatsink
243: IGBT (isolated gate bipolar transistor)
244: SMPS (switching mode power supply)
245: fuse
300: second device unit
310: second intake unit
320: second exhaust
330: second blower
340: filter
400: partition wall
500: inverter panel
500a: indoor inverter panel
500b: outdoor inverter panel
501a: indoor housing
501b: outdoor housing
502a: Interior door
502b: outdoor door
510: first inverter receiving unit
511: first panel intake
512: first panel exhaust
520: second inverter receiving unit
521: second panel intake
522: second panel exhaust
530: PCB device receiving portion
531: outside air inlet
532: outside air discharge unit
533: panel blower
534: PCB device
540: base portion
541a: first base intake
541b: second base intake
542: outside air supply
550: main busbar
550a: 1st main busbar
550b: second main busbar
551: port
551a: first port
551b: second port
600: power panel
610: power input panel
611: power input terminal
620: power output panel
621: power output terminal
700: track conversion panel
710: input line conversion panel
711: input power conversion line
712: input opening
713: input line terminal portion
720: Output line conversion panel
721: output power conversion line
722: output opening
723: output line terminal portion
S: Inverter panel space

Claims (15)

A first device unit having an inverter module that converts DC power into AC power and supplies it to an external load therein;
A second device portion positioned adjacent to the first device portion and having a filter for filtering noise of the AC power therein; And
A partition wall portion positioned between the first device portion and the second device portion, partitioning the first device portion and the second device portion, and blocking communication between the first device portion and the second device portion Includes,
The first device unit,
A first intake unit formed on one side of the first device unit, through which air for cooling the inverter module is introduced into the first unit unit; And
It is formed on the other side opposite to one side of the first device unit, and includes a first exhaust unit through which air introduced into the first intake unit is discharged,
The second device unit,
A second intake portion formed on one side of the second apparatus portion facing the same direction as one side of the first apparatus portion, and through which air for cooling the filter flows into the second apparatus portion; And
It is formed on the other side opposite to one side of the second device portion, and includes a second exhaust portion through which the air introduced into the second intake portion is discharged,
Inverter device. According to claim 1,
At least one of the first intake section and the first exhaust section is provided with a first blowing section that provides a transfer force to the air flowing inside the first device section,
At least one of the second intake part and the second exhaust part is provided with a second blowing part that provides a conveying force to the air flowing inside the second device part,
Inverter device. According to claim 1,
It is formed on the one side of the first device portion adjacent to the first intake portion, the third intake portion is formed into the air for cooling the inverter module into the first device portion,
Inverter device. According to claim 3,
The inverter module,
Comprising any one or more of capacitors, heatsinks and IGBTs (isolated gate bipolar transistors),
Inverter device. An inverter device that receives DC power and converts it into AC power; And
A first inverter accommodating portion accommodating the inverter device therein and a PCB device accommodating portion positioned below the first inverter accommodating portion to accommodate the PCB device therein,
The inverter device,
A first device unit having an inverter module that converts DC power into AC power and supplies it to an external load therein;
A second device portion positioned adjacent to the first device portion and having a filter for filtering noise of the AC power therein; And
A partition wall portion positioned between the first device portion and the second device portion, partitioning the first device portion and the second device portion, and blocking communication between the first device portion and the second device portion Includes,
The first device unit,
A first intake unit formed on one side of the first device unit, through which air for cooling the inverter module is introduced into the first unit unit; And
It is formed on the other side opposite to one side of the first device unit, and includes a first exhaust unit through which air introduced into the first intake unit is discharged,
The second device unit,
A second intake portion formed on one side of the second apparatus portion facing the same direction as one side of the first apparatus portion, and through which air for cooling the filter flows into the second apparatus portion; And
It is formed on the other side opposite to one side of the second device portion, and includes a second exhaust portion through which the air introduced into the second intake portion is discharged,
The PCB device is configured to be electrically connected to the inverter device to control the inverter device,
Inverter panel. The method of claim 5,
On one side of the first inverter accommodating portion facing the same direction as one side of the inverter device on which the first intake portion is formed, at least one first panel intake portion through which air flows into the first inverter accommodating portion is formed,
On the other side of the first inverter accommodating portion facing in the same direction as the other side of the inverter device in which the first exhaust portion is formed, a first panel exhaust portion through which air inside the first inverter accommodating portion is discharged is formed.
Inverter panel. The method of claim 5,
Below the PCB device receiving portion,
The outside air inlet through which air flows into the PCB device receiving portion is formed,
Inverter panel. The method of claim 7,
It includes a base portion located on the lower side of the PCB device receiving portion,
A first base intake portion through which air for cooling the PCB device is introduced into the base portion is formed on one side of the base portion,
On one side of the base portion adjacent to the PCB device receiving portion, an outside air supply portion is formed in which air introduced into the base portion is supplied to the PCB device receiving portion,
The external air inlet of the PCB device accommodating part and the external air supply part of the base part are aligned with each other,
Inverter panel. The method of claim 7,
An outside air exhaust portion is formed on one side of the PCB device receiving portion,
The outside air flowing into the PCB device receiving portion is discharged to the outside air exhaust portion,
Inverter panel. The method of claim 9,
A panel blower is provided on at least one of the outside air inlet and the outside air exhaust of the PCB device receiving part,
Inverter panel. It includes a first inverter accommodating portion accommodating an inverter device for receiving DC power and converting it into AC power, and a second inverter accommodating portion positioned adjacent to the first inverter accommodating portion
Each of the inverter devices is accommodated in the first inverter accommodating part and the second inverter accommodating part,
The inverter device,
A first device unit having an inverter module that converts DC power into AC power and supplies it to an external load therein;
A second device portion positioned adjacent to the first device portion and having a filter for filtering noise of the AC power therein; And
A partition wall portion positioned between the first device portion and the second device portion, partitioning the first device portion and the second device portion, and blocking communication between the first device portion and the second device portion Includes,
The first device unit,
A first intake unit formed on one side of the first device unit, through which air for cooling the inverter module is introduced into the first unit unit; And
It is formed on the other side opposite to one side of the first device unit, and includes a first exhaust unit through which air introduced into the first intake unit is discharged,
The second device unit,
A second intake portion formed on one side of the second apparatus portion facing the same direction as one side of the first apparatus portion, and through which air for cooling the filter flows into the second apparatus portion; And
It is formed on the other side opposite to one side of the second device portion, and includes a second exhaust portion through which the air introduced into the second intake portion is discharged,
Inverter panel. The method of claim 11,
On one side of the first inverter accommodating portion facing in the same direction as one side of the inverter device in which the first intake portion is formed, a first panel intake portion through which air flows into the first inverter accommodating portion is formed,
On the other side of the first inverter accommodating portion facing in the same direction as the other side of the inverter device in which the first exhaust portion is formed, a first panel exhaust portion through which air inside the first inverter accommodating portion is discharged is formed.
Inverter panel. The method of claim 12,
On one side of the second inverter accommodating portion facing in the same direction as one side of the inverter device in which the first intake portion is formed, a second panel intake portion through which air flows into the second inverter accommodating portion is formed,
On the other side of the second inverter accommodating portion facing the same direction as the other side of the inverter device in which the first exhaust portion is formed, at least one second panel exhaust portion through which air inside the second inverter accommodating portion is discharged is formed,
Inverter panel. A power conversion device comprising the inverter panel according to claim 5 or 11,
Located adjacent to one side of the inverter panel, including a power input panel for receiving the DC power from the outside and supplying to the inverter panel,
Power converter. The method of claim 14,
Located adjacent to the other side of the inverter panel, including a power output panel that receives the converted AC power from the inverter panel and outputs it to the outside,
Power converter.

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