KR20110001817A

KR20110001817A - Solar cell aparatus

Info

Publication number: KR20110001817A
Application number: KR1020090059522A
Authority: KR
Inventors: 조호건
Original assignee: 엘지이노텍 주식회사
Priority date: 2009-06-30
Filing date: 2009-06-30
Publication date: 2011-01-06
Also published as: KR101567081B1

Abstract

PURPOSE: A solar cell device is provided to cool a solar panel and to prevent a decline in generation efficiency by emitting heat using first and second heat radiating members. CONSTITUTION: A solar cell device comprises a solar panel(100), a first heat radiating member, and a second heat radiating member(300). The first heat radiating member is arranged under the solar panel. The second heat radiating member is arranged under the first heat radiating member. The first heat radiating member comprises a heat radiation plate(210) and a plurality of heat radiation fins(220).

Description

Solar Power Plant {SOLAR CELL APARATUS}

Embodiments relate to a photovoltaic device.

Photovoltaic modules that convert light energy into electrical energy using photoelectric conversion effects are widely used as a means of obtaining pollution-free energy that contributes to the preservation of the global environment.

As photovoltaic conversion efficiency of solar cells is improved, many solar power generation systems with photovoltaic modules have been installed for residential use.

Such solar cells may be degraded by heat, and structures that efficiently release such heat have been studied.

Embodiments provide a photovoltaic device that efficiently emits heat, prevents a decrease in power generation efficiency due to temperature rise, and has high durability.

Photovoltaic device according to an embodiment includes a solar cell panel; A first heat dissipation member disposed under the solar cell panel; And a second heat radiating member disposed below the first heat radiating member.

Photovoltaic device according to an embodiment includes a solar cell panel; A first heat dissipation member that absorbs and releases heat generated from the solar cell panel; And a second heat release member that absorbs heat emitted from the first heat release member and releases the heat to the outside.

The solar cell apparatus according to the embodiment efficiently releases heat by the first heat dissipation member and the second heat dissipation member.

In particular, the first heat dissipation member may include a heat dissipation plate facing the solar cell panel and heat dissipation fins extending from the heat dissipation plate toward the second heat dissipation member.

Accordingly, the solar cell apparatus according to the embodiment can efficiently transfer heat generated from the solar cell panel to the second heat dissipation member.

In addition, the first heat dissipation member can directly radiate heat to the outside through the circulation of air without passing through the second heat dissipation member.

In addition, the second heat dissipation member may include an evaporator for evaporating the refrigerant and a condenser for condensing the evaporated refrigerant. Therefore, the second heat dissipation member can efficiently release heat.

Accordingly, the solar cell apparatus according to the embodiment prevents a decrease in power generation efficiency due to a temperature rise and prevents a decrease in durability.

In the description of the embodiments, it is described that each panel, frame, plate, part or pin or the like is formed "on" or "under" of each panel, frame, plate, part or pin or the like. In the case, “on” and “under” include both being formed “directly” or “indirectly” through other components. In addition, the upper or lower reference of each component is described with reference to the drawings. The size of each component in the drawings may be exaggerated for the sake of explanation and does not mean the size actually applied.

1 is an exploded perspective view illustrating a solar cell module according to an embodiment. 2 is a plan view illustrating a solar cell module according to an embodiment. FIG. 3 is a cross-sectional view taken along the line A-A 'of FIG. 2. FIG. Is a cross-sectional view showing a cross section taken along line B-B '. 5 and 6 are views illustrating a process of cooling a solar cell panel.

1 to 6, the solar cell module according to the embodiment includes a solar cell panel 100, a first heat dissipation member 200, a second heat dissipation member 300, and a frame 400.

The solar cell panel 100 receives sunlight and converts it into electrical energy. The solar panel 100 may include a plurality of solar cells. In addition, the solar cell panel 100 may further include a buffer layer and a protective glass covering the solar cell.

The solar cells may be, for example, CIGS-based solar cells, silicon-based solar cells or dye-sensitized solar cells.

The sealing member 110 is disposed on the side surface of the solar cell panel 100. The sealing member 110 seals the side surface of the solar cell panel 100. The sealing member 110 prevents foreign matter from penetrating through the side surface of the solar cell panel 100.

Examples of the material used for the sealing member 110 may be a resin having elasticity and high durability.

The first heat dissipation member 200 is disposed below the solar cell panel 100. The first heat dissipation member 200 emits heat generated from the solar cell panel 100 to the outside or transmits the heat to the second heat dissipation member 300.

The first heat dissipation member 200 may directly contact the solar cell panel 100. In addition, the first heat dissipation member 200 may directly contact the second heat dissipation member 300.

The first heat dissipation member 200 includes a heat dissipation plate 210 and a plurality of heat dissipation fins 220.

The heat dissipation plate 210 faces the solar cell panel 100. The heat dissipation plate 210 may directly contact the bottom surface of the solar cell panel 100.

The heat dissipation fins 220 extend from the heat dissipation plate 210. In more detail, the heat dissipation fins 220 extend from the bottom surface of the heat dissipation plate 210 toward the second heat dissipation member 300.

The heat dissipation fins 220 space the heat dissipation plate 210 and the second heat dissipation member 300 from each other. The heat dissipation fins 220 may directly contact the second heat dissipation member 300.

The heat dissipation plate 210 and the heat dissipation fins 220 are integrally formed. Examples of the material used for the heat dissipation plate 210 and the heat dissipation fins 220 may include aluminum or an aluminum alloy.

Heat generated from the solar cell panel 100 is discharged to the outside or the second heat dissipation member 300 by the heat dissipation plate 210 and the heat dissipation fins 220.

The second heat dissipation member 300 is disposed below the first heat dissipation member 200. The second heat dissipation member 300 dissipates heat emitted from the first heat dissipation member 200 to the outside.

The second heat dissipation member 300 includes a sealed container 310, a refrigerant 320, and a suction part 330.

The sealed container 310 accommodates the refrigerant 320 and the suction part 330. The sealing container 310 has a sealing area sealed from the outside, the refrigerant 320 and the suction unit 330 is disposed in the sealing area.

The sealed container 310 is not limited to the drawings, and may have various forms. The sealed container 310 may have a plate shape, and alternatively, may have a pipe shape.

In this embodiment, the sealed container 310 has a hollow plate shape inside. The sealed container 310 includes a first separator 311 and a second separator 312.

The first separating part 311 is adjacent to the first heat dissipation member 200 and separates the inside and the outside of the sealing area.

The second separating part 312 faces the first separating part 311 and is positioned opposite to the first heat dissipating member 200. The second separator 312 separates the inside and the outside of the sealing area.

The sealed container 310 may be formed of a material having a high thermal conductivity. For example, the sealed container 310 may be made of aluminum or an aluminum alloy. In more detail, the first separator 311 and the second separator 312 may be made of stainless steel, tungsten, copper, aluminum, or the like.

The refrigerant 320 is accommodated in the sealed container 310. The refrigerant 320 is a highly volatile liquid. Examples of the material used as the coolant 320 include alcohol or acetone.

The suction part 330 is disposed adjacent to the first separation part 311. That is, the suction part 330 is disposed adjacent to the first heat dissipation member 200. The suction part 330 is in contact with the first separation part 311. In more detail, the suction part 330 may be in contact with the entire first separation part 311.

The suction part 330 includes a plurality of pores. The suction part 330 easily sucks the refrigerant 320 by a capillary phenomenon. The suction part 330 has a high thermal conductivity. Examples of the material used as the suction part 330 may include porous fibers.

As shown in FIG. 6, the second heat dissipation member 300 includes an evaporator and a condenser.

The evaporator is composed of the first separator 311 and the suction unit 330. That is, the refrigerant 320 is sucked by the suction unit 330 in a liquid state, and evaporates while absorbing heat absorbed through the first separation unit 311.

The evaporated refrigerant 320 is condensed in the second separator 312. At this time, the heat generated while the evaporated refrigerant 320 is condensed is discharged to the outside through the second separator 312.

Here, the second separator 312 constitutes the condenser.

The condensed refrigerant 320 accumulates in the lower portion of the hermetically sealed container, is absorbed by the suction part 330, moves upward, and evaporates again.

In this manner, the second heat dissipation member 300 absorbs heat from the first heat dissipation member 200 and efficiently discharges the heat.

The frame 400 accommodates the solar cell panel 100, the first heat dissipation member 200, and the second heat dissipation member 300. The frame 400 may surround the solar cell panel 100, the first heat dissipation member 200, and the second heat dissipation member 300.

The frame 400 may be made of metal, and examples of the material used as the frame 400 may include aluminum or an aluminum alloy.

The frame 400 includes a first support part 410, a second support part 420, a first spacer 421, a third support part 430, a second spacer 431, and a fourth support part 440. ).

The first support part 410 is disposed on side surfaces of the solar cell panel 100, the first heat dissipation member 200, and the second heat dissipation member 300. Side surfaces of the first support part 410 and the solar cell panel 100 are spaced apart from each other.

The second support part 420 extends from an upper end of the first support part 410. The second support part 420 is disposed on the solar cell panel 100. The second support part 420 is bent or curved from the first support part 410 and extends inwardly.

The second support part 420 supports an upper portion of the solar cell panel 100 through the first spacer 421.

The first spacer 421 is disposed below the second support portion 420. The first spacer 421 is interposed between the second support part 420 and the solar cell panel 100. The first spacer 421 provides a space 425 between the second support portion 420 and the solar cell panel 100.

The first spacer 421 may be integrally formed with the second support part 420.

The third support part 430 extends inward from the first support part 410. The third support part 430 extends from the middle of the first support part 410. The third support part 430 may vertically cross the first support part 410.

The third support part 430 is disposed below the solar cell panel 100. In more detail, the third support part 430 is disposed under the heat dissipation plate 210. The third support part 430 supports the lower part of the heat dissipation plate 210 through the second spacer 431.

A space for accommodating the solar cell panel 100 and the heat dissipation plate 210 is formed by the first support part 410, the second support part 420, and the third support part 430. do.

In addition, the third support part 430 is disposed on the second heat radiating member. The third support part 430 supports the upper portion of the second heat dissipation member.

The second spacer 431 is disposed on the third support part 430. The second spacer 431 is interposed between the third support part 430 and the heat dissipation plate 210. The second spacer 431 provides a space 435 between the third support portion 430 and the heat dissipation plate 210.

The second spacer 431 may be integrally formed with the third support part 430.

The fourth support part 440 extends inward from the lower end of the first support part 410. The fourth support part 440 is bent or curved from the first support part 410 to extend.

The fourth support part 440 is disposed below the second heat dissipation member 300. The fourth support part 440 supports the lower portion of the second heat dissipation member 300.

The first support part 410, the third support part 430, and the fourth support part 440 form a space for accommodating the second heat dissipation member 300.

As illustrated in FIG. 5, wind may flow between the heat dissipation plate 210 and the second heat dissipation member 300 through a space between the solar cell panel 100 and the frame 400. have.

That is, the space 425 between the solar cell panel 100 and the second support part 420, the space 415 between the solar cell panel 100 and the first support part 410, and the heat dissipation plate Wind flows through the space 435 between the 210 and the third support 430.

That is, heat generated in the solar cell panel 100 is easily discharged by the first spacer 421 and the second spacer 431. Here, heat generated by the solar cell panel 100 is heat generated by sunlight and solar heat.

The solar cell module according to the embodiment efficiently releases heat by the first heat dissipation member 200 and the second heat dissipation member 300.

In particular, heat generated from the solar cell panel 100 may be efficiently transmitted to the second heat dissipation member 300 through the heat dissipation plate 210 and the heat dissipation fins 220.

In addition, the solar cell module according to the embodiment may directly discharge heat to the outside through the circulation of the air passing between the first heat dissipation member 200 and the second heat dissipation member 300. .

In addition, the second heat dissipation member 300 efficiently discharges heat by circulating the refrigerant 320.

Accordingly, the solar cell module according to the embodiment prevents a decrease in power generation efficiency due to a temperature rise and prevents a decrease in durability.

In addition, the solar cell module according to the embodiment can efficiently release heat without using additional power.

Although described above with reference to the embodiment is only an example and is not intended to limit the invention, those of ordinary skill in the art to which the present invention does not exemplify the above within the scope not departing from the essential characteristics of this embodiment It will be appreciated that many variations and applications are possible. For example, each component specifically shown in the embodiment can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

1 is an exploded perspective view illustrating a solar cell module according to an embodiment.

2 is a plan view illustrating a solar cell module according to an embodiment.

FIG. 3 is a cross-sectional view taken along the line A-A 'of FIG. 2.

FIG. Is a cross-sectional view showing a cross section taken along line B-B '.

5 and 6 are views illustrating a process of cooling a solar cell panel.

Claims

Solar panel;

A first heat dissipation member disposed under the solar cell panel; And

A photovoltaic device comprising a second heat radiating member disposed below the first heat radiating member.

The method of claim 1, wherein the first heat dissipation member

A heat dissipation plate facing the solar cell panel; And

And a plurality of heat dissipation fins extending from the heat dissipation plate toward the second heat dissipation member.

The method of claim 1, wherein the second heat dissipation member

An evaporator adjacent to the first heat dissipation member and evaporating a refrigerant; And

Photovoltaic device comprising a condensation unit for condensing the evaporated refrigerant.

The photovoltaic device of claim 3, wherein the evaporator comprises a plurality of pores and an absorber to absorb the refrigerant by capillary action.

The method of claim 1, further comprising a frame for receiving the solar cell panel, the first heat dissipation member and the second heat dissipation member,

The frame is

A first support part disposed on a side surface of the solar cell panel;

A second support part extending from the first support part and disposed on the solar cell panel; And

And a third support part extending from the first support part and disposed under the solar cell panel.

The method of claim 5, wherein the frame is

A first spacer interposed between the second support part and the solar cell panel; And

And a second spacer interposed between the third support portion and the solar cell panel.

The method of claim 5, wherein the third support portion is interposed between the solar cell panel and the second heat dissipation member,

The frame extends from the first support portion and includes a fourth support portion disposed under the second heat dissipation member.

Solar panel;

A first heat dissipation member that absorbs and releases heat generated from the solar cell panel; And

And a second heat dissipation member which absorbs heat emitted from the first heat dissipation member and emits it to the outside.

The method of claim 8, wherein the first heat dissipation member

A heat dissipation plate for absorbing heat generated from the solar cell panel; And

Comprising a plurality of heat dissipation fins integrally formed with the heat dissipation plate,

The second heat dissipation member

An evaporator which absorbs heat emitted from the first heat release member and evaporates the refrigerant; And

The solar cell apparatus of claim 9, wherein the heat dissipation plate is in direct contact with the solar cell panel, and the second heat dissipation member is in direct contact with the heat dissipation fins.