CN210805798U - An IBC solar panel with heat dissipation - Google Patents

Abstract

The utility model relates to an IBC solar cell panel with heat dissipation function. It includes a solar cell sheet, the upper surface of the solar cell sheet is covered with a layer of heat conduction layer, the side of the heat conduction layer in contact with the solar cell sheet is provided with a groove, and the groove and the solar cell sheet form a cavity; the The lower surface of the solar cell is covered with a heat dissipation layer and a back plate in sequence, and a heat dissipation member is embedded in the heat dissipation layer, and the heat dissipation member is in contact with the solar cell sheet. In the utility model, the heat is evenly concentrated in the cavity between the heat-conducting layer and the solar cell sheet through the heat-conducting layer to achieve uniform heat transfer, and then most of the heat is exported to the outside through the heat-dissipating layer, thereby reducing the solar cell backplane. The working temperature improves the output power of the solar cell, as well as the stability and service life.

Description

An IBC solar panel with heat dissipation

technical field

The utility model relates to the technical field of solar cells, in particular to an IBC solar cell panel with heat dissipation function.

Background technique

As a new energy, solar energy has the advantages of inexhaustible, clean and environmental protection compared with traditional fossil fuels. A solar cell is an optoelectronic semiconductor sheet that uses sunlight to directly generate electricity. As long as it meets a certain light intensity, it can instantly output voltage and generate current in the presence of a loop. In the prior art, solar panels are generally installed outdoors and work continuously. However, while the solar panels are operating to generate electricity, the temperature of the back panel also increases, which will affect its power generation efficiency and service life. . As the temperature increases, the voltage drops sharply, resulting in insufficient charging of the system and a sharp drop in output power, resulting in the solar cell not being able to fully utilize its maximum performance.

Utility model content

In view of this, the present invention provides an IBC solar cell panel with heat dissipation function in order to solve the technical problem that the conversion efficiency of the cell to light is reduced due to the difficulty in dissipating heat when the solar cell is illuminated.

The purpose of the present utility model is achieved through the following technical solutions:

An IBC solar cell panel with heat dissipation function, comprising a solar cell sheet, the upper surface of the solar cell sheet is covered with a layer of heat conduction layer, the side of the heat conduction layer in contact with the solar cell sheet is provided with a groove, the concave The groove and the solar cell form a cavity; the lower surface of the solar cell is sequentially covered with a heat dissipation layer and a back plate, and a heat dissipation member is embedded in the heat dissipation layer, and the heat dissipation member is in contact with the solar cell sheet. The utility model absorbs the heat of the solar energy through the heat conduction layer, and controls the heat in the chamber as much as possible. The next stage of transmission through the chamber can make the heat transfer more uniform, and the heat in the chamber is transferred to the heat dissipation layer through the solar cell sheet. , most of the heat is exported to the outside by the heat dissipation layer, thereby reducing the heat received by the backplane, thereby improving the conversion efficiency of solar cells to light energy.

Further, the heat dissipation layer includes a sealing frame and a heat dissipation member, the heat dissipation member is fixed on the sealing frame, and the sealing frame is respectively bonded to the solar cell sheet and the back plate through a high temperature resistant inorganic adhesive. The heat dissipation layer mainly controls the air flow rate through the heat conduction of the heat dissipation member, and accelerates the heat dissipation rate by increasing the air flow rate; Compound realization.

Further, the side frame of the sealing frame is provided with a heat dissipation groove. The purpose of setting the heat sink is to further accelerate the exchange rate of the gas inside the battery and the outside gas, and to achieve rapid cooling inside the battery through the mutual exchange and neutralization of gases at different temperatures.

Further, the heat dissipation member is a plurality of independent heat dissipation blocks, the heat dissipation blocks are arranged at intervals, a heat dissipation channel is formed between two adjacent heat dissipation blocks, and the size of the heat dissipation block gradually decreases from the middle of the sealing frame to the surrounding area. . The heat dissipation blocks are set to different sizes, so the heat absorption capacity of the heat dissipation blocks of different sizes is also different, which will decrease with the reduction of the size. more, the surrounding is smaller, so the temperature of the heat dissipation layer will be different, forming a temperature difference, and the gas with high temperature flows back to the gas with low temperature, so as to realize the flow of gas in the heat dissipation layer, in order to speed up heat dissipation.

Further, the heat dissipation member is a heat dissipation strip, the heat dissipation strip is arranged in a spiral shape, and the width of the heat dissipation strip gradually decreases from the center of the spiral shape to the edge. The principle of setting the shape of the heat dissipation strip is the same as the above case, all of which are to form the flow of gas caused by the temperature difference, so that the high temperature gas diffuses from the middle of the heat dissipation layer to the surrounding and is discharged through the heat dissipation groove on the side of the sealing frame.

Further, the heat dissipation member is a copper heat dissipation member or an aluminum heat dissipation member. Both copper and aluminum have good thermal and heat transfer properties, and are light in weight and low in cost, and are suitable for use as heat sinks.

Further, the high temperature resistant inorganic adhesive is a high temperature resistant inorganic nano composite adhesive prepared by using inorganic nano materials through polycondensation reaction. The above-mentioned adhesive not only has strong adhesive force and is non-corrosive to the substrate, but also can maintain good adhesive performance and corrosion resistance at high temperature, and has a long service life.

Further, the side of the back plate away from the heat dissipation layer is coated with a waterproof coating. The waterproof coating can effectively prevent moisture in the air from contaminating the backplane, preventing moisture from corroding the backplane or affecting the circuit.

Compared with the prior art, the beneficial effects of the present utility model are:

The solar cell panel of the utility model uniformly concentrates the heat in the cavity between the heat-conducting layer and the solar cell sheet through the heat-conducting layer to achieve uniform heat transfer, and then conducts most of the heat to the outside through the heat-dissipating layer, thereby reducing the back plate. The received heat also reduces the operating temperature of the solar cell backplane, increases the output power of the solar module, significantly improves the working efficiency of the solar cell, and improves the stability and service life of the solar cell panel.

Description of drawings

FIG. 1 is a structural cross-sectional view of an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a heat dissipation layer according to Embodiment 1 of the present invention.

FIG. 3 is a schematic structural diagram of a heat dissipation layer according to Embodiment 2 of the present invention.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

Please refer to FIG. 1 to FIG. 3 , the embodiments of the present invention include:

Example 1

As shown in FIG. 1, an IBC solar panel with heat dissipation function includes a solar cell 1, the upper surface of the solar cell 1 is covered with a layer of thermal conductivity layer 2, and the side of the thermal conductivity layer 2 in contact with the solar cell sheet 1 is provided There is a groove, and the groove and the solar cell 1 form a cavity 3; the lower surface of the solar cell 1 is sequentially covered with a heat dissipation layer 4 and a back plate 5, and a heat dissipation member 42 is embedded in the heat dissipation layer 4, and the heat dissipation member 42 is connected to the solar cell. Sheet 1 is in contact. The utility model absorbs the heat of the solar energy through the heat-conducting layer 2, and controls the heat in the chamber 3 as much as possible, and the next stage of transmission through the chamber 3 can make the heat transfer more uniform, and the heat in the chamber 3 passes through the solar energy. The solar cells 1 are transferred to the heat dissipation layer 4, and the heat dissipation layer 4 conducts most of the heat to the outside, thereby reducing the heat received by the back sheet 5, thereby improving the conversion efficiency of solar cells to light energy.

The heat dissipation layer 4 includes a sealing frame 41 and a heat dissipation member 42, the heat dissipation member 42 is fixed on the sealing frame 41, and the sealing frame 41 is respectively bonded to the solar cell 1 and the back plate 5 by a high temperature resistant inorganic adhesive. The heat dissipation layer 4 mainly controls the air flow rate by means of the heat dissipation member 42, and increases the air flow rate to speed up the heat dissipation rate; in addition, due to the high temperature of the battery, the bonding between the plates needs to be resistant to high temperature. adhesive realization. The side frame of the sealing frame 41 is provided with a heat dissipation groove 411 . The purpose of disposing the heat sink 411 is to further accelerate the exchange rate of the gas inside the battery and the outside gas, and to achieve rapid cooling inside the battery by means of mutual exchange and neutralization of gases at different temperatures.

In this embodiment, the heat dissipation member 42 is a plurality of independent heat dissipation blocks. The heat dissipation blocks are arranged at intervals. A heat dissipation channel is formed between two adjacent heat dissipation blocks. The size of the heat dissipation blocks gradually decreases from the middle of the sealing frame 41 to the periphery. The heat dissipation blocks are set to different sizes, so the heat absorption capacity of the heat dissipation blocks of different sizes is also different, which will decrease with the reduction of the size. Therefore, the temperature around the heat dissipation layer 4 is different, forming a temperature difference, and the gas with high temperature flows back to the gas with low temperature, so as to realize the flow of gas in the heat dissipation layer 4, thereby to speed up the heat dissipation. The heat dissipation member 42 is a copper heat dissipation member 42 or an aluminum heat dissipation member 42 . Both copper and aluminum have good thermal and heat transfer properties, and are light in weight and low in cost, and are suitable for use as the heat sink 42 .

In addition, the high temperature resistant inorganic adhesive is a high temperature resistant inorganic nano composite adhesive prepared by using inorganic nano materials through polycondensation reaction. The above-mentioned adhesive not only has strong adhesive force and is non-corrosive to the substrate, but also can maintain good adhesive performance and corrosion resistance at high temperature, and has a long service life. The side of the back plate 5 away from the heat dissipation layer 4 is coated with a waterproof coating. The waterproof coating can effectively prevent moisture in the air from contaminating the backplane 5 , thereby preventing moisture from corroding the backplane 5 or affecting the circuit.

Example 2

As shown in FIG. 3 , different from Embodiment 1, the heat dissipation member 42 of this embodiment is a heat dissipation strip 43 , and the heat dissipation strip 43 is arranged in a spiral shape, and the width of the heat dissipation strip 43 is from the center of the spiral shape to the direction of the spiral shape. The edges are gradually narrowed. The principle of setting the shape of the heat dissipation strips 43 is the same as that of the first embodiment, all of which are to form a temperature difference to cause gas flow, so that the high temperature gas diffuses from the middle of the heat dissipation layer 4 to the surrounding and is discharged through the heat dissipation grooves 411 on the side of the sealing frame 41 .

Although the description of the present invention is carried out in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Accordingly, all such alternatives, modifications and changes are intended to be included within the spirit and scope of the appended claims.

Claims (8)

1. An IBC solar cell panel with heat dissipation function, comprising a solar cell sheet, characterized in that the upper surface of the solar cell sheet is covered with a layer of thermally conductive layer, and the side of the thermally conductive layer in contact with the solar cell sheet is provided with a groove, the groove and the solar cell form a cavity; the lower surface of the solar cell is covered with a heat dissipation layer and a back plate in sequence, a heat dissipation member is embedded in the heat dissipation layer, and the heat dissipation member is connected to the solar cell sheet. contact. 2 . The IBC solar panel with heat dissipation function according to claim 1 , wherein the heat dissipation layer comprises a sealing frame and a heat dissipation member, the heat dissipation member is fixed on the sealing frame, and the sealing The frame is bonded to the solar cell sheet and the back sheet respectively through a high temperature resistant inorganic adhesive. 3 . The IBC solar cell panel with heat dissipation function according to claim 2 , wherein the side frame of the sealing frame is provided with a heat dissipation groove. 4 . 4 . The IBC solar panel with heat dissipation function according to claim 2 , wherein the heat dissipation member is a plurality of independent heat dissipation blocks, and the heat dissipation blocks are arranged at intervals, and between two adjacent heat dissipation blocks. 5 . A heat dissipation channel is formed between the heat dissipation blocks, and the size of the heat dissipation block gradually decreases from the middle of the sealing frame to the periphery. 5 . The IBC solar panel with heat dissipation function according to claim 2 , wherein the heat dissipation member is a heat dissipation strip, the heat dissipation strip is arranged in a spiral shape, and the width of the heat dissipation strip is from the spiral shape. 6 . The center of the shape tapers toward the edge. 6 . The IBC solar panel with heat dissipation function according to claim 4 or 5 , wherein the heat dissipation member is a copper heat dissipation member or an aluminum heat dissipation member. 7 . 7 . The IBC solar panel with heat dissipation function according to claim 2 , wherein the high temperature resistant inorganic adhesive is a high temperature resistant inorganic nano-composite adhesive made of inorganic nano materials through polycondensation reaction. 8 . agent. 8 . The IBC solar cell panel with heat dissipation function according to claim 1 , wherein the side of the back plate away from the heat dissipation layer is coated with a waterproof coating. 9 .

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