KR102596023B1 - Heat Radiation Solar Panel for Building Integrated Photovoltaic Easily Detachable - Google Patents

Abstract

Disclosed is an easily attachable and detachable heat dissipating solar panel for a building-integrated solar power generation system.
According to one aspect of this embodiment, in the solar panel, a glass that protects the remaining components of the solar panel from the external environment is located on the top layer in the direction in which sunlight is incident on the solar panel, and receives the incident light. It protects the solar cell that produces electrical energy and the solar cell from external shock, and is disposed on the back of the sealing layer and the sealing layer that bonds the layers, protecting the solar cell from the external environment and protecting the solar cell from external shock. It includes a back sheet that reflects sunlight back to the solar cell and a heat dissipating paint coated on the back sheet to improve heat dissipation characteristics, wherein the glass, the solar cell, the sealing layer, and the back sheet correspond to each other. Provides a solar panel characterized in that it includes a through hole.

Description

Heat Radiation Solar Panel for Building Integrated Photovoltaic Easily Detachable}

This embodiment relates to a solar panel that can be easily attached and detached from a BIPV system and has improved heat dissipation characteristics.

The content described in this section simply provides background information for this embodiment and does not constitute prior art.

Energy has been obtained from fossil fuels around the world, but there is a limit to its reserves, and environmental pollution is occurring due to an increase in carbon dioxide or acidic pollutants due to the use of fossil fuels. Due to these disadvantages of fossil energy, alternative energy is being developed mainly in developed countries, and the use of new and renewable energy, which is infinite and renewable energy, is being spread among alternative energies. Among them, solar energy is attracting attention, and research on solar power generation systems is being actively conducted in many countries with high solar power density. As a result of these research activities, solar power generation systems are being installed and operated in many countries as the spread of new and renewable energy is being abused.

Recent research directions for utilizing solar power generation systems include ways to reduce system costs and improve efficiency, and consumers are very interested in improving power generation efficiency and stable operation. One of the causes that affects efficiency in these solar power generation systems is heat generation. Solar panels have the characteristic that solar power generation efficiency decreases as the temperature rises. Accordingly, it is necessary to prevent the temperature of the solar panel from becoming too high.

To solve this problem, conventional solar power generation systems use various methods to cool solar panels. However, conventional cooling methods require a certain amount of volume or a complex structure, causing inconvenience in installation and operation.

The purpose of one embodiment of the present invention is to provide a solar panel that can be easily attached and detached from a BIPV system and has improved heat dissipation characteristics.

According to one aspect of this embodiment, in the solar panel, a glass that protects the remaining components of the solar panel from the external environment is located on the top layer in the direction in which sunlight is incident on the solar panel, and receives the incident light. It protects the solar cell that produces electrical energy and the solar cell from external shock, and is disposed on the back of the sealing layer and the sealing layer that bonds the layers, protecting the solar cell from the external environment and protecting the solar cell from external shock. It includes a back sheet that reflects sunlight back to the solar cell and a heat dissipating paint coated on the back sheet to improve heat dissipation characteristics, wherein the glass, the solar cell, the sealing layer, and the back sheet correspond to each other. Provides a heat dissipating solar panel for a building-integrated solar power generation system, characterized in that it includes a through hole.

According to one aspect of this embodiment, the heat dissipating paint is manufactured through a mixing process in which raw materials are mixed at a preset ratio, a melting process in which the mixed raw materials are melted in a preset environment, and a cooling process in which the molten raw materials are extruded and cooled. It is characterized by

According to one aspect of this embodiment, the sealing layer is implemented as an upper sealing layer and a lower sealing layer, and the solar cell is placed between them to protect the solar cell from external force.

According to one aspect of this embodiment, the solar cell is characterized by having a shingled array structure.

According to one aspect of this embodiment, the through hole is characterized in that the coupling means passes through it to be coupled.

According to one aspect of this embodiment, the coupling means is coupled to another coupling means fixed to the outer wall of the building through the through hole, and is characterized in that it fixes the solar panel.

According to one aspect of this embodiment, the coupling means is coupled to another coupling means fixed to a fireproof panel formed on the outer wall of a building through the through hole, and is characterized in that it fixes the solar panel.

As described above, according to one aspect of this embodiment, it can be easily attached and detached from the BIPV system and has the advantage of improved heat dissipation characteristics.

Figure 1a is an exploded perspective view of a solar panel according to an embodiment of the present invention.
Figure 1B is a cross-sectional view of a solar panel according to an embodiment of the present invention.
Figure 2a is a diagram showing an example of mounting a solar panel according to the first embodiment of the present invention.
Figure 2b is a diagram showing an example of mounting a solar panel according to a second embodiment of the present invention.
Figure 3 is a flowchart showing a method of manufacturing a heat dissipating paint according to an embodiment of the present invention.
Figure 4 is a diagram showing an example of a solar panel coated with a heat dissipating paint manufactured according to an embodiment of the present invention.
5 to 8 are graphs showing the light absorption spectrum of each raw material constituting the heat dissipating paint according to an embodiment of the present invention.
9 and 10 are graphs showing heat dissipation characteristics of a conventional solar panel and a solar panel according to an embodiment of the present invention.
Figure 11 is a diagram showing an example of a heat dissipating paint manufactured according to another embodiment of the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components.

Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "include" or "have" should be understood as not precluding the existence or addition possibility of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification. .

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains.

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Additionally, each configuration, process, process, or method included in each embodiment of the present invention may be shared within the scope of not being technically contradictory to each other.

FIG. 1A is an exploded perspective view of a solar panel according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view of a solar panel according to an embodiment of the present invention.

Referring to FIGS. 1A and 1B, the solar panel 100 according to an embodiment of the present invention includes glass 110, an upper sealing layer 120, a solar cell 130, a lower sealing layer 140, and a back sheet. It includes (150), junction box 160, frame 170, through hole 175, heat sink 180, cooling pipe 190, and heat dissipation paint (not shown).

The solar panel 100 is a power generation system that receives sunlight and produces electrical energy. The solar panel 100 can be installed on the exterior wall of a building to form a building integrated photovoltaic (BIPV) system. The solar panel 100 is not arranged to occupy a separate space, but is placed on the exterior wall of the building as an exterior wall material, roof material, window material, etc. to improve space utilization.

At this time, within the building-integrated solar power generation system including the solar panel 100, problems such as corrosion may occur when the remaining components other than the panel are exposed to the external environment. To prevent this, the space between the solar panel 100 and the outer wall of the building is sealed to prevent external fluid from entering. However, because the sealing progresses in this way, the temperature within the sealed space rises significantly. An increase in temperature immediately causes a decrease in the power generation efficiency of the solar panel 100. To prevent this, the solar panel 100 improves heat dissipation characteristics by including a structure to be described later.

In addition, since the solar panel 100 is placed exposed to the outside of the building, each component within the solar panel 100 has considerable strength so that it can be resistant to external forces. For example, when a fire breaks out in a building where the solar panel 100 is implemented as a building-integrated solar power generation system, a situation may arise where personnel such as firefighters must directly enter the building from the outside of the building. You can. However, as described above, the solar panel 100, especially the back sheet 150, implemented in the form of a building-integrated solar power generation system, has considerable strength, making it difficult for personnel wishing to enter the building to enter the building. You can have it. To solve this problem, the solar panel 100 can be easily attached and detached from the building by being combined with the building in a simple structure. When personnel from the outside need to enter the inside of the building, the personnel can enter after easily attaching and detaching the solar panel 100 attached to the exterior wall of the building. Accordingly, personnel can easily enter the building without damaging the solar panel 100.

The glass 110 is located on the top layer in the direction in which sunlight is incident on the solar panel 100, and protects the remaining components of the solar panel 100, such as the upper sealing layer 120, from the external environment.

The upper sealing layer 120 and lower sealing layer 140 protect the solar cell 130, which is easily damaged, from external shocks and bond the layers together. The upper sealing layer 120 and lower sealing layer 140 protect the solar cell 130 from external force by placing the solar cell 130 between them. Additionally, an upper sealing layer 120 and a lower sealing layer 140 are disposed, and each layer within the solar panel 100 can be bonded. Accordingly, the heat generated from the solar cell 130 can be more smoothly discharged to the outside through the cooling pipe 190 or the back sheet 150.

The solar cell 130 receives light and produces electrical energy. The solar cell 130 may be implemented to have a shingled array structure. The shingled array structure forms a plurality of strips by cutting solar cells with front and back electrodes to increase the conversion efficiency and output per unit of the solar cell module. The shingled array structure is formed as a string structure in which the front and back electrodes are bonded with a conductive adhesive. By having this structure, power generation efficiency can be increased by 20% compared to a conventional ribbon-type battery, and there is no problem in passing current even if a hole is made in the solar panel.

The back sheet 150 is disposed on the rear side of the lower sealing layer 140 in the direction in which sunlight enters the solar panel, protecting the solar cell 130 from the external environment and protecting the solar cell 130 from the solar cell 130. is reflected back to the solar cell 130. The back sheet 150 is disposed on the rear side of the lower sealing layer 140 to prevent the components 120 to 140 located between the glass 110 or the frame 170 and itself from being exposed to the outside, and Sunlight that has passed through the cell 130 is reflected back to the solar cell 130.

In addition, the backsheet 150 may be implemented as a heat dissipating steel sheet such as a zinc steel sheet, an aluminum steel sheet, or a stainless steel sheet, or may additionally include a heat dissipating steel sheet (not shown). The back sheet 150 performs the above-described operations (prevents exposure and re-reflects sunlight), and at the same time, is implemented with or includes a heat-dissipating steel plate made of the above-described components, thereby directing heat generated from the solar cell 130 to the outside. Discharge more smoothly.

The junction box 160 is disposed on the rear of the backsheet 150 in the direction in which sunlight is incident on the solar panel, and manages electrical wiring between the solar cell 130 and external devices (such as power storage devices).

The frame 170 supports each component within the solar panel 100.

Through holes 175 are implemented at corresponding positions of the glass 110 to the back sheet 150. The through holes 175 are implemented in a preset number of preset sizes within each component 110 to 150. Here, the preset size may be around 10 mm to 15 mm in diameter, and several or more through holes of the corresponding size may be implemented in each component (110 to 150).

Since the through hole 175 is formed at a corresponding position of each component 110 to 150, it can be easily formed by being perforated by means such as a laser or drill. As described above, since the solar cell 130 has a shingled array structure, it is not affected by perforations. As the through hole 175 is formed inside each component 110 to 150 in this way, a coupling means (not shown) or a cooling means (not shown) can be fastened to the through hole. Accordingly, the solar panel 100 can be fixed to the exterior wall of a building, etc. by a coupling means (not shown). Since the solar panel 100 and the outer wall of the building are fixed by a coupling means (not shown) through the through hole 175, the solar panel is easily fixed to the outer wall of the building by separating the coupling means (not shown). (100) can be separated from it. Due to the formation of the through hole 175, not only does the assembly (or arrangement) of each component within the solar module 100 become easier, but also it can be easily attached and detached from the outer wall of a building, etc.

The heat sink 180 is disposed on the rear of the back sheet 150 in the direction in which sunlight is incident on the solar panel, and transfers heat transferred from the back sheet 150 to the outside or the cooling pipe 190.

The cooling pipe 190 allows coolant to flow inside, thereby cooling heat emitted from the solar cell 130 or transferred (generated from the solar cell to other components).

Meanwhile, heat dissipation paint (not shown) is applied to some or all of the backsheet 150 and heat sink 180 to significantly improve heat dissipation characteristics. Heat dissipation paint (not shown) is applied to the corresponding components to improve heat dissipation characteristics and has excellent insulation and weather resistance, as well as easy color conversion and improved dispersibility. By using a heat dissipating paint (not shown), the heat dissipation efficiency of the solar cell 130 can be significantly improved and the power generation efficiency of the solar cell 130 can be improved. The heat dissipating paint applied in this way is manufactured according to the process shown in Figure 3a or 3b. The manufacturing process of the heat dissipating paint will be described later with reference to Figures 3A or 3B.

Figure 2a is a diagram showing an example of mounting a solar panel according to the first embodiment of the present invention.

FIG. 2A shows an example in which the solar panel 100 is mounted on a fireproof panel 220 formed on the exterior wall 210 of a building.

A fireproof panel 220 may be installed on the exterior wall 210 of the building to prevent fire, etc. The solar panel 100 may be fixed to the fireproof panel 220 by coupling means 230 to 250.

As described above, a through hole 175 is formed in each component 110 to 150 within the solar panel 100. The coupling means 230 and 240 are coupled to the fireproof panel 220 through the formed through hole 175.

The second coupling means 240 is located on the fireproof panel 220, and a third coupling means 250 is coupled to the fireproof panel 220 on a part of the body of the second coupling means 240, and the second coupling means 240 ) is fixed. The first coupling means 230 that passes through the through hole 175 is coupled to the second coupling means 240 fixed in this way, and the solar panel 100 and the fireproof panel 220 are coupled. Here, the first coupling means 230 may be implemented as a bolt, the second coupling means 240 may be implemented as a nut, and the third coupling means 250 may be implemented as a screw/piece, etc., but are not necessarily limited to these and each coupling means may be implemented as a nut. Any means may be replaced as long as the means can be combined with the above-mentioned object.

The solar panel 100 includes a through hole 175 therein and is coupled to the fireproof panel 220 by the coupling means 230 and 240, so that it can be easily detached. Because of this, the solar panel 100 can bring about the above-described effects.

Meanwhile, in order to prevent external fluid from flowing into gaps in the solar panel 100, sealing members 260 may be disposed at each end of the solar panel 100. A sealing member 260 is disposed at each end of the solar panel 100 and seals any gaps that may be formed between the solar panels 100.

Figure 2b is a diagram showing an example of mounting a solar panel according to a second embodiment of the present invention.

Figure 2b shows an example in which the solar panel 100 is directly mounted on the exterior wall 210 of a building.

The coupling of the solar panel 100 and the exterior wall 210 of the building is similar to the coupling of the solar panel 100 to the fireproof panel 220.

However, since the outer wall 210 of the building is relatively stronger than the fireproof panel 220, it is difficult for the second coupling means 240 to be coupled to the outer wall 210 of the building by the third coupling means 250. This exists.

Accordingly, the fifth coupling means 244 is fixed to be directly inserted into the outer wall 210 of the building. The fifth coupling means 244 has a coupling structure inside that can be coupled to the sixth coupling means 248, such as a screw thread structure.

The sixth coupling means 248 is coupled to the coupling structure of the fifth coupling means 244 directly inserted into the outer wall 210 of the building. One end of the sixth coupling means 248 is coupled and fixed to the fifth coupling means 244, and the other end protrudes through the through hole 175 of the solar panel 100.

The fourth coupling means 235 is coupled to the other end of the sixth coupling means 248 and fixes the solar panel 100 to the outer wall 210 of the building. The fourth coupling means 235 may be implemented as a nut, and the fifth coupling means and sixth coupling means may be implemented as pieces having threads, but are not necessarily limited thereto. As shown in FIG. 2A, sealing members 260 may be implemented at each end of the solar panel 100.

Meanwhile, the above-mentioned heat dissipation powder is manufactured as follows according to the process shown in Figure 3a.

Figure 3A is a flowchart showing a method of manufacturing a heat dissipating paint according to an embodiment of the present invention, and Figure 4 is a diagram showing an example of a solar panel coated with a heat dissipating paint manufactured according to an embodiment of the present invention. am.

Referring to FIG. 4, the heat dissipating paint 400 manufactured according to an embodiment of the present invention includes a heat dissipating powder 410 and a pigment (not shown), and the heat dissipating powder 410 includes a resin 412, a first It includes a pillar 414, a second pillar 416, and a third pillar 418.

Raw materials are mixed at a preset ratio (S310). As raw materials, resins, curing agents, first to third fillers, additives, and coupling agents are included.

The resin 412 has heat dissipation properties and is melted so that the remaining components of the raw materials can be dispersed within it. The resin is a thermosetting resin, and more specifically, it is implemented as polyester. Polyester has excellent weather resistance, color development, and gloss (above a preset standard value). In particular, the resin is a thermosetting polyester and may be implemented as a carboxylic acid functional polyester resin or a hydroxyl functional polyester resin.

The curing agent allows the resin to be hardened according to a process to be described later. As a hardener, a HAA (β-hydroxyalkylamide) type hardener may be used. Conventionally, a TGIC (TriGlycidyl IsoCyanurate) type curing agent has been mainly used to cure polyester resin. However, this type of hardening material has properties that are harmful to the human body, and its use is banned in various countries. To solve this problem, a HAA type hardener is used as a hardener.

The first filler 414 is included as a component to increase the thermal emissivity of the heat dissipating powder 410. Since the first filler 414 must have insulation properties and excellent thermal conductivity, it may be implemented with boron nitride (BN). In particular, the first filler 414 may be implemented with boron nitride having a hexagonal structure, which is the most stable crystal form among boron nitrides. In this way, hexagonal boron nitride is a form in which the carbon atoms that make up graphene are replaced with boron and nitrogen atoms, and has a structure similar to graphene, but unlike graphene, it has excellent insulating properties.

However, since the first filler 414 has a hexagonal structure, it has the following characteristics. The first filler 414 has excellent thermal conductivity of approximately 400 W/m·K in the area direction, while it has poor thermal conductivity of approximately 2 W/m·K in the vertical direction of the area. Accordingly, when only the first filler 414 is included in the resin 412, it is obvious that most of it will be arranged in a stacked form in the area direction. Accordingly, the first fillers 414 are arranged in the vertical direction of the area in the direction in which the heat dissipating powder 410 radiates heat, resulting in a problem of low thermal conductivity.

To solve this problem, a second filler 416 and a third filler 418 are included as raw materials.

The second filler 416 is implemented with a spherical structure using a preset first material. Here, the preset first material is a material that is relatively inexpensive compared to the first filler 414 and has a thermal conductivity higher than the preset standard value, and may be typically implemented as magnesium oxide (MgO). The second filler 416 has a thermal conductivity of about 60 W/m·K, which is lower than that of the first filler 414 but higher than that of the third filler 418. Since the second filler 214 has a higher thermal conductivity than the third filler 418, it is implemented as a spherical structure with a relatively larger diameter than the third filler 418. As the second pillar 416 is included, the second pillar 416 is disposed between the first pillars 414.

As a result, heat is emitted from the backsheet 150 or the heat sink 180 in the solar panel 130 to the outside (where heat is emitted), passing through the second filler 416 and the first filler 414. can be relatively less rough. As described above, since the first fillers 414 are disposed in the vertical direction of the area, the second filler 416 is disposed, which can have the effect of improving overall thermal conductivity. Additionally, as the second pillar 416 is implemented as a spherical structure, the first pillar 414 is arranged at an angle based on the area direction (the surface direction of the heat dissipation structure within the light source). The second pillar 416 can be arranged perpendicularly to the first pillar 414, but even if not, it can be arranged at least at an angle from the area direction. Accordingly, the thermal conductivity of the first filler 414 can also be significantly better than when the second filler 416 is not present and is laminated.

Meanwhile, the third filler 418 is implemented with a spherical structure using a preset second material. Here, the preset second material is a material that is relatively inexpensive compared to the first filler 414 and has a thermal conductivity higher than the preset standard value, and may be typically implemented as aluminum oxide (Al ₂ O ₃ ). The third pillar 418 is implemented as a spherical structure with a relatively smaller diameter than the second pillar 416. As the third pillar 418 is implemented as a relatively small spherical structure, it is disposed in the empty space formed by the first pillar 414 and the second pillar 416 and improves thermal conductivity. When the third filler 418 is implemented with the same component as the second filler 416, it has the effect of dispersing heat within the first filler 414 and the second filler 416. Because of this, there is a concern that the rate at which heat is emitted from the backsheet 150 or the heat sink 180 within the solar panel 130 to the outside (where heat is emitted) may be slowed down. Accordingly, the third filler 418 is implemented with the above-described material and structure, thermally connecting the empty spaces formed when the first filler 414 and the second filler 416 are disposed, but excessively moving into the space. Improves heat dissipation by preventing heat dissipation.

In addition, as the resin 412 and the first to third fillers 414, 416, and 418 are implemented with the above-mentioned components, the following effects may appear. Each of the components 412, 414, 416, and 418 can absorb light of different wavelength bands, as shown in FIGS. 5 to 8.

5 to 8 are graphs showing the light absorption spectrum of each raw material constituting the heat dissipating paint according to an embodiment of the present invention.

Referring to FIG. 5, as the resin 412 is made of polyester, it absorbs the 5.6 to 5.8㎛ wavelength band (1780 to 1720 cm ^-1 wave number) or the 7.8 to 8.5 ㎛ wavelength band (1290 to 1180 cm ^-1 wave number). absorbs light.

Referring to FIG. 6, the first filler 414 is made of boron nitride and thus absorbs light in the 7.4㎛ wavelength band (1352cm ^-1 wavenumber).

Referring to Figure 7, the second filler 416 is implemented with magnesium oxide. Absorbs light in the 18.3㎛ wavelength band (545cm ^-1 wavenumber).

Referring to Figure 8, the third pillar 216 is implemented with aluminum oxide. Absorbs light in the 16.8㎛ wavelength band (595cm ^-1 wavenumber).

If some or all of the components 412, 414, 416, and 418 are implemented as the same component, the heat (light) emitted after absorption by one component may be reabsorbed by the other component. When other components reabsorb the heat emitted by a specific component, a problem occurs in which the heat release rate becomes relatively slow. To prevent this, each component 412, 414, 416, and 418 is implemented in the above-described configuration and absorbs light of different wavelength bands. Accordingly, it is possible to prevent the problem of the heat (light) emitted by one component being reabsorbed by another component.

Additionally, the second filler 416 and/or the third filler 418 may be surface modified to improve dispersibility and weather resistance within the resin 412.

Referring again to FIGS. 3A and 4, the additive prevents defects from occurring on the surface of the paint film.

The coupling agent improves the dispersibility of each filler 414, 416, and 418 within the resin 412. If each filler 414, 416, and 418 is not dispersed within the resin 412, the overall heat dissipation efficiency of the heat dissipating powder 410 is reduced. To prevent this, a coupling agent is additionally included. The coupling agent may be implemented as a silane coupling agent or a compound containing an ionic functional group. The coupling agent has an affinity for the surfaces of the fillers 414, 416, and 418 on one side and the resin on the other side of the molecule, thereby improving the dispersibility of the fillers within the resin 412.

Heat dissipating powder is formed from the above-mentioned raw materials.

The pigment allows the heat dissipating paint to be manufactured to have a preset color. Pigments are mixed with heat dissipating powder, and ultimately determine the color of the heat dissipating paint to be manufactured.

The pigment is mixed with the remaining raw materials constituting the heat dissipating powder 410 at a weight ratio of 88 to 95:5 to 12. The remaining raw materials can be mixed in an amount of 8.6% by weight relative to the pigment, most preferably compared to the remaining raw materials. If the remaining raw materials are included in less than 5% by weight, a problem occurs in which the thermal conductivity of the heat dissipating paint to be manufactured is significantly reduced. Conversely, when the remaining raw materials are included in an amount of 12% by weight or more, the coating film of the heat dissipating paint to be manufactured becomes uneven, the amount of pigment included is reduced, and aesthetics are significantly reduced. Accordingly, the pigment and the remaining raw materials constituting the heat dissipating powder 410 are mixed in the above-mentioned ratio.

The mixed raw materials are melted in a preset environment (S320). Raw materials mixed at a preset ratio are melted in a preset environment.

The molten raw material is extruded and cooled (S330). Molten raw materials are extruded and cooled in a preset environment. Accordingly, the molten raw materials are solidified.

The cooled raw materials are crushed or pulverized into a preset form (S340). The solidified raw materials are crushed into a preset shape or crushed separately. Through this process, heat dissipating paint is manufactured. The manufactured heat dissipating paint has excellent insulation, heat dissipation, and weather resistance as it includes the first to third fillers 414, 416, and 418. In addition, since it includes the first to third fillers 414, 416, 418 and the resin 412 implemented with the above-mentioned ingredients, it has the advantage of easy color conversion. The heat dissipating paint manufactured in this way is placed on the backsheet 150 or the heat sink 180 in the solar panel 130, is melted by heat applied from the outside, and is painted on the surface of the object. Accordingly, the heat dissipating paint is applied to the surface of the object and forms a coating film with excellent heat dissipation properties, insulation properties, and weather resistance.

Meanwhile, the heat dissipating paint can be manufactured as shown in Figure 3b.

Raw materials are mixed at a preset ratio (S350). The raw materials mixed in the S310 process, excluding the pigment, are mixed in a preset ratio.

The mixed raw materials are crushed or pulverized through processes S320 to S340.

The crushed or pulverized heat dissipating powder and pigment are mixed at a preset ratio (S360). As described above, the pigment and heat dissipation powder are mixed at a weight ratio of 88 to 95:5 to 12. Through this process, heat dissipating paint is finally manufactured.

The solar panel 100 coated with heat dissipating paint manufactured through the process of FIG. 3A or FIG. 3B has significantly superior heat dissipation characteristics compared to conventional solar panels that are not manufactured through the process of FIG. 3A or FIG. 3B. This is shown in Figures 9 and 10.

9 and 10 are graphs showing heat dissipation characteristics of a conventional solar panel and a solar panel according to an embodiment of the present invention. The graphs shown in FIGS. 9 and 10 are graphs showing the difference between the temperature of the coolant flowing into the solar panel (in the cooling pipe) and the temperature of the coolant flowing out after cooling the solar panel.

Figure 9 is a graph showing the heat dissipation characteristics of a conventional solar panel. As shown in Figure 9(a) or Figure 9(b), it can be seen that in a conventional solar panel, the temperature difference between the incoming and outgoing coolant is only a few degrees Celsius. This means that the temperature of the coolant did not rise (cooling was not done sufficiently) due to insufficient heat dissipation from the solar panel.

On the other hand, Figure 10 is a graph showing the heat dissipation characteristics of a solar panel according to an embodiment of the present invention. As shown in Figure 10(a) or Figure 10(b), it can be seen that the temperature difference of the coolant in the solar panel (coated with heat dissipation paint) according to an embodiment of the present invention is several tens of degrees Celsius. You can. In other words, as heat dissipation occurs sufficiently in the solar panel, the temperature of the outflowing coolant rises sufficiently, and it can be seen that the temperature difference between the two coolants is significantly greater than before.

From the above-described data (graph), the heat dissipation characteristics of the heat dissipation paint manufactured according to an embodiment of the present invention can be confirmed.

Meanwhile, the heat dissipating paint according to an embodiment of the present invention may be manufactured by a method different from the method shown in FIG. 3.

Heat dissipating powder can be manufactured through the same process as shown in Figure 3a or Figure 3b. However, the heat dissipating powder contains only the first filler 414 as a raw material, and can be manufactured into the heat dissipating powder through the process of FIG. 3A or FIG. 3B. The heat dissipating powder prepared in this way is mixed with a pigment (not shown) and manufactured into a heat dissipating paint.

At this time, the heat dissipating powder is not mixed with the pigment all at once, but is crushed and mixed to have different sizes. To improve thermal conductivity, the heat dissipating powder is crushed to have sizes of around 30㎛ (within a preset error range), around 12㎛, and around 5㎛ in a 1:1:1 ratio. When crushed in this way, the relatively small size of the heat dissipating powder acts as a second or third filler and can bring about a similar effect as described above.

The heat dissipating paint manufactured according to an embodiment of the present invention is described as being applied to solar panels, but is not necessarily limited thereto. The heat dissipating paint (manufactured according to an embodiment of the present invention) can be applied to lighting fixtures, especially heat sinks within the lighting fixtures, to improve the heat dissipation characteristics of the lighting fixtures, and can be applied to various other devices requiring heat dissipation to improve heat dissipation properties. It can be improved.

In Figure 3, each process is described as being sequentially executed, but this is merely an illustrative explanation of the technical idea of an embodiment of the present invention. In other words, a person skilled in the art to which an embodiment of the present invention pertains can change the order depicted in each drawing or perform one or more of the processes without departing from the essential characteristics of an embodiment of the present invention. Since various modifications and variations can be applied by executing in parallel, FIG. 3 is not limited to a time series order.

Meanwhile, the processes shown in FIG. 3 can be implemented as computer-readable codes on a computer-readable recording medium. Computer-readable recording media include all types of recording devices that store data that can be read by a computer system. That is, computer-readable recording media include storage media such as magnetic storage media (eg, ROM, floppy disk, hard disk, etc.) and optical read media (eg, CD-ROM, DVD, etc.). Additionally, computer-readable recording media can be distributed across networked computer systems so that computer-readable code can be stored and executed in a distributed manner.

The above description is merely an illustrative explanation of the technical idea of the present embodiment, and those skilled in the art will be able to make various modifications and variations without departing from the essential characteristics of the present embodiment. Accordingly, the present embodiments are not intended to limit the technical idea of the present embodiment, but rather to explain it, and the scope of the technical idea of the present embodiment is not limited by these examples. The scope of protection of this embodiment should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of this embodiment.

100: solar panel
110: glass
120: upper sealing layer
130: solar cell
140: Lower sealing layer
150: back seat
160: Junction box
170: frame
175: Through hole
180: heat sink
190: Cooling pipe
210: Fireproof panel
220: Building exterior wall
230, 235, 240, 244, 248, 250: Combining means
260: Sealing member
400: heat dissipation paint
410: Heat dissipating powder
412: Resin
414: first filler
416: second filler
418: Third pillar

Claims (7)

In solar panels,
Glass located on the top layer in the direction in which sunlight enters the solar panel, protecting the remaining components of the solar panel from the external environment;
Solar cells that receive light and produce electrical energy;
a sealing layer that protects the solar cell from external shock and bonds the layers together;
a back sheet disposed behind the sealing layer to protect the solar cell from the external environment and reflect sunlight passing through the solar cell back to the solar cell; and
Includes a heat dissipation paint applied to the backsheet to improve heat dissipation characteristics,
The glass, the solar cell, the sealing layer, and the back sheet include through holes at corresponding positions,
The solar cell has a shingled array structure so as not to be affected by perforations,
A coupling means for fixing the solar panel to the outer wall of the building is coupled with another coupling means fixed to the outer wall of the building or a fireproof panel of the building through the through hole, and fixes the solar panel. A heat dissipating solar panel for a building-integrated solar power generation system. According to paragraph 1,
The heat dissipating paint is,
A mixing process in which raw materials are mixed at a preset ratio;
A melting process in which mixed raw materials are melted in a preset environment; and
A heat dissipating solar panel for a building-integrated solar power generation system, which is manufactured through a cooling process in which molten raw materials are extruded and cooled. According to paragraph 1,
The sealing layer is,
A heat dissipating solar panel for a building-integrated solar power generation system, which is implemented with an upper sealing layer and a lower sealing layer, and protects the solar cells from external forces by placing the solar cells between them. delete delete delete delete

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