KR100860202B1 - Solar Module Attach With Absorb Heat Panel - Google Patents

Abstract

The present invention relates to a solar cell module of a power generation system using sunlight, which is made by connecting a plurality of solar cells in series or parallel is called a solar cell module, when the sunlight is irradiated with the solar cell module due to solar heat High temperature is generated on the back surface of the solar cell module, which has been a cause of deterioration of power generation efficiency due to this heat.

The solar cell module of the present invention has such a problem by attaching a thermoelectric element and a heat absorbing panel on the back of the solar cell to lower the internal temperature of the solar cell, thereby lowering the internal electrical resistance value, and absorbing the waste heat that has been discarded. It is a solar cell module with a heat-absorbing panel of efficient utilization.

Solar cell, thermoelectric element, heat absorption panel, solar cell module

Description

Solar Module Attach With Absorb Heat Panel

1 is a configuration diagram showing an example produced by attaching a thermoelectric element and a heat absorption panel on the back of the solar cell according to the present invention,

2 is a configuration diagram of a conventional solar cell module.

<Description of Symbols for Main Parts of Drawings>

101, 201: solar cell module housing 102: heat insulating material (hatched portion in the drawing)

103 and 203: transparent glass 104: heat transfer member 105: thermoelectric element

106,206: solar cell 107,207: solar cell fixing board

108: heat absorption panel 109, 209: solar cell output stage

110: thermoelectric element output stage 111: discharge valve 112: inlet valve

113: heat exchange circulation motor 114: tank circulation motor 115: backflow prevention

117: hot water outlet 118: microprocessor unit

119: external tank 120: internal tank

121: solar cell back temperature sensor 122: heat absorption panel temperature sensor

123, 124: external tank level detector 125, 126: internal tank level detector

127: outer tank water temperature sensor 128: inner tank water temperature sensor

The present invention relates to a solar cell module of a power generation system using sunlight, which is made by connecting a plurality of solar cells in series or in parallel, called a solar cell module, to produce electricity by shining sunlight on the surface of the solar cell module The solar cell module structure of the power generation system.

In general, solar cells are energy indefinitely and pollution-free. The basic principle is a structure in which a P-type semiconductor and an N-type semiconductor are bonded to each other, and when sunlight is applied to the solar cell surface, electrons and holes are generated by light energy. Electricity is generated by the photoelectric effect that moves and current flows. The solar cells are connected to each other in series or in parallel to be placed in a structure, so that the solar cells can withstand the impact. There is a process of conversion to energy.

A conventional solar cell module will be described with reference to FIG. 2.

As shown in FIG. 2, the solar cells 206 connected in parallel and in parallel are attached to the fixing plate 207, placed in a protective enclosure 201, and covered with a transparent glass 203, and the upper surface of the solar cell is manufactured. And it is to be used to connect the load to the electrical output terminal 209 on the back.

However, such a conventional solar cell module has the following problems.

Solar energy can be divided into light and heat energy. In the conventional solar cell module, as described above, the photoelectric effect produces electricity using only light energy. Thermal energy is not used, and there is a waste element. There is a problem that causes a power loss by increasing the resistance value of the current flowing inside the solar cell.

As described above, the conventional solar cell module generates electricity by sunlight, but there is a problem in that power loss occurs due to the increase in internal resistance of the solar cell due to the generation of considerable heat from the solar cell back surface.

In the present invention, in order to improve such a problem, a heat absorbing panel is attached to the back of the solar cell, and the heat absorbing panel circulates water, which is a heat transfer medium, to absorb solar heat generated from the solar cell by sunlight, and solar electricity. The dual effect of converting energy is also obtained. In particular, by inserting a thermoelectric element between the solar cell back and the heat absorption panel, the electrical energy is converted into a thermoelectric element by converting the temperature difference during the heat exchange process to obtain more electric energy. Therefore, the purpose is to minimize the power loss generated in the solar cell and to maximize the power generation efficiency by lowering the internal resistance value of the solar cell.

The solar cell module with a heat absorbing panel according to the present invention includes a solar cell module enclosure 101 including a solar cell 106, a thermoelectric element 105, and a heat absorbing panel 108, and a microprocessor unit ( 118), it further comprises a hot water storage tank (119).

Referring to Figure 1 will be described the characteristics and coupling relationship of each component.

The solar cell 106 applies or attaches a heat transfer medium (eg, Thermal Compound, Thermal Pad, etc.) on a solar cell fixing plate 107 made of an aluminum plate or a copper plate having good heat transfer characteristics, and serially connects a solar cell on the solar cell. Or a plurality of combinations in close contact. This is to transfer heat generated from the solar cell to the heat absorbing panel 108 quickly.

The thermoelectric element 105 is a phenomenon in which electromotive force is generated while the carrier inside the element (P-type semiconductor, N-type semiconductor) moves when a difference in heat (temperature) is applied to both cross sections according to the principle of Seebeck. The bottom side of the plate 107 is a heating element, and the top surface side of the heat absorption panel 108 is a cooling body, and a thermoelectric element is inserted therebetween. Thus, power is generated by using the temperature difference between the two ends (solar cell and heat absorption panel). However, this thermoelectric device has a problem in that the space (thickness) between both ends is about 3-4 mm and the area is about 160,000 mm 2, which limits the area of both ends indefinitely. However, the heating element and the cooling body have an area to increase the efficiency. Therefore, in order to increase the area of the heating element and the cooling body facing each other, good power generation efficiency cannot be expected without reliably isolating the heating element and the cooling body. In the present invention, by attaching a heat transfer member 104 having good heat transfer characteristics on both end surfaces of the thermoelectric element to ensure a sufficient distance to insulate between the heating element and the cooling body, the insulation 102 is attached between the heating element and the heating element. Isolate between cooling bodies and increase power generation efficiency.

The heat absorption panel 108 is an aluminum or copper plate having good heat transfer characteristics, and is about the size of the solar cell fixing plate 107 and is horizontally bonded to the left, right, front, and back sides of the top and bottom edges. A hollow tube having good heat transfer characteristics as shown in the present embodiment, or circulating a heat transfer medium (water is used as the heat transfer medium in the example of the present invention, hereafter referred to collectively as water). It is configured to absorb heat generated from the back of the solar cell by circulating water and the like in a copper motor.

The solar cell module housing 101 includes a solar cell fixing plate 107 to which the solar cell 106 is attached, a heat absorbing panel 108, and a thermoelectric element 105 inserted therebetween. It protects the attached solar cell module from external shocks and is wrapped with insulation, and the solar cell is a rectangular box made of transparent glass so that sunlight can penetrate well. Also, it is natural that the electrical output terminal generated from the solar cell and the electrical output terminal generated from the thermoelectric element are also provided outside the enclosure.

The microprocessor unit 118 is composed of an input unit, a display unit, a CPU, a storage unit, and an output unit, that is, a solar cell back temperature sensor 121, a heat absorption panel temperature sensor 122, and an external tank level (water height) sensor (123,124), the inner tank water level sensor (125, 126), the outer tank water temperature sensor (127), the inner tank water temperature sensor (128) receives the signal detected at the input unit and processes it according to the program stored in the storage to display the control status on the display And through the output unit to control the intake valve 111, intake valve 112, tank circulation motor 114, heat exchange circulation motor 113 and the like to maximize the power generation efficiency. In addition, although not shown in the drawings, the operating range of the various circulation motors and valves may be implemented so that the user may arbitrarily change and set the operation range without relying only on a predefined program. It is configured to set the intake valve, the intake valve, the tank circulation motor, the heat exchange circulation motor in accordance with the various water temperature and the level value input to the.

The hot water storage tank is composed of two tanks of different sizes, the outer tank 119 and the inner tank 120 fixed by putting a small tank in the middle of the large tank, and the outer tank senses the water temperature sensor 127. The pump is pumped into the inner tank by using a tank circulation motor 114 connecting the outer tank and the inner tank with a hollow tube, which prevents the mixing of cold water and hot water when the inlet valve is opened, and a predetermined amount of hot water at a proper temperature. To keep at all times. And it is connected between the heat absorbing panel inlet side and the outer tank by a hollow tube is connected to the inlet valve 112 in parallel (connected by a T connector) is configured to replenish the cold water. In particular, when the inlet valve 112 is connected between the inlet valve 112 and the outer tank in series (hanging connection) to prevent the inflow of cold water into the outer tank when the inlet valve is opened. In addition, a heat pipe is connected between the outlet side of the heat absorbing panel and the outer tank by a hollow tube, and the inlet valve 114 is connected in parallel therebetween to prevent freezing of the heat absorbing panel due to cold weather in winter. The circulation motor 113 is connected in series and configured to circulate a heat transfer medium heated by solar heat.

Here, the materials used (for example, a heat insulating material, a solar cell fixing plate, a heat absorbing panel, etc.) are just described materials that are commonly used and are not limited to these examples, the heat insulating material and the heat insulating material is a material that blocks the heat, solar cells Fixing plates and heat-absorbing panels can be used as long as they have good heat transfer characteristics.

In addition, the transparent glass is preferably used as a double glass sealed gas between the glass, the solar cell module housing 101, the outer tank 119 for storing hot water, the heat absorption panel 108, the tank 119 and It is natural that the hollow tube between the panels 108 is insulated with a heat insulating material in order to increase thermal efficiency.

In addition, the water level sensor used in the hot water storage tank outer tank and inner tank shows only the upper limit and the lower limit in the drawing, but this is only for visual understanding. For example, when the bure floats and sinks, By measuring the movement, the water level in the tank can be measured in real time. However, the present invention is not limited to this example and can be used as long as the height of water can be measured in real time and converted into an electric signal.

In the above, the coupling relationship and features of the components have been described in detail,

Hereinafter, a description will be given of the operation process while briefly explaining the coupling relationship of the components to help understanding through the preferred embodiment.

The solar cell module with a heat absorbing panel of the present invention inserts a thermoelectric element between a solar cell fixing plate and a heat absorbing panel having good heat transfer characteristics attached to a combination of solar cells, and on the solar cell back and the heat absorbing panel. The temperature absorbing panel is attached by attaching a temperature sensor and receiving the signal detected by the temperature sensor as an input part of the microprocessor unit 118, processing it with the CPU according to the program stored in the storage part, and controlling the circulation motor and the inlet valve to the output part. In the process of absorbing and absorbing heat generated from the back of the solar cell by circulating cold water, it is configured to effectively absorb solar energy by using a thermoelectric element. The circulation motor for circulating water and the hot water storage tank are further configured.

Referring to the operation by the above configuration, first, electricity is generated in the solar cell output stage 109 by sunlight, but heat is generated from the solar cell rear surface, and the output terminal in the thermoelectric element due to the temperature difference between the solar cell rear surface and the heat absorption panel. Generate electricity at 110. At this time, the microprocessor unit properly detects the temperature of the heat absorbing panel temperature sensor 122 and the solar cell back temperature sensor 121 while controlling the cold water flowing in the heat absorbing panel with the heat exchange circulation motor 113 to control the solar cell fixing plate. While maintaining the temperature difference between the heat absorbing panel and generate enough electricity with the thermoelectric element and absorbs heat, the hot water is stored in the outer tank 119, and sensed by the outer tank water temperature sensor 127 and the tank circulation motor ( 114) pumping hot water from the outer tank to the inner tank 120, and repeats the operation of opening the water inlet valve 112 to obtain the cold water back into the heat absorption panel, and between the solar cell back side on the heating side and the heat absorption panel on the cooling side. It is a solar cell module with a heat absorption panel that is constructed in such a way as to generate power and obtain hot water by maintaining a temperature difference.

In addition, in winter, when the temperature of the solar cell rear temperature sensor 121 drops sharply in the cold, it is detected by the microprocessor unit input unit and processed by the CPU to operate the water discharge valve 111 to output the water in the heat absorption panel. It is configured to prevent freezing by discharging.

The present invention maximizes the efficiency by simultaneously absorbing the electrical energy and thermal energy generated by the solar cell during power generation by sunlight, and also by reducing the internal resistance of the solar cell can reduce the power loss generated inside to maximize the power generation efficiency. .

Claims (3)

In the solar cell module of the solar power generation system further comprises a solar cell module housing including a solar cell, a thermoelectric element, a heat absorption panel, a microprocessor unit, a hot water storage tank, A solar cell fixing plate in close contact with the back surface of the solar cell; A heat absorbing panel having a size of the solar cell fixed plate and absorbing heat of the solar cell by circulating a heat transfer medium in a rectangular parallelepiped; A solar cell module having a heat absorbing panel coupled to a thermoelectric element between the solar cell fixing plate and the heat absorbing panel; A solar cell module that protects the solar cell module from external shock and insulates the heat absorbing panel, wherein the solar cell includes a solar cell module enclosing the solar cell module with a rectangular parallelepiped made of transparent glass; The hot water storage tank for storing the hot water obtained by circulating the heat absorption panel is composed of an outer tank and the inner tank, the inner tank located in the inner middle of the outer tank; The hot water storage outer tank and the heat absorption panel inlet side is connected to the hollow tube, the inlet valve 112 is added in parallel with the T-type connector, and the hot water storage outer tank and the heat absorption panel outlet side is the hollow tube. The heat exchange circulation motor 113 is connected in series, and the heat exchange circulation motor 113 is connected in parallel, and heat is transferred to the heat absorption panel through the thermoelectric element at the solar cell heated by solar heat. A microprocessor (MPU) for operatively controlling the intake valve, the heat exchange circulation motor, and the intake valve to circulate the heat transfer medium to the heat absorption panel; Are mutually coupled to A solar cell module with a heat absorption panel configured to absorb heat and output electricity from solar cells and thermoelectric elements. The method according to claim 1, The temperature sensor 121 attached to the back of the solar cell, the temperature sensor 122 attached to the heat absorption panel, the water temperature sensor 128 attached to the inner tank, the water temperature sensor 127 attached to the outer tank, attached to the inner tank The water level detectors 125 and 126 and the water level detectors 123 and 124 attached to the external tank are detected and received as a microprocessor input unit, processed by the CPU according to a program stored in the storage unit, and displayed on the display unit. ), The inlet valve 112, the heat exchange circulation motor 113, the tank circulation motor 114 is configured to control the output unit, in particular, so that the user can arbitrarily set the operating range setting value of the above-mentioned valve and the circulation motor Solar cell module with a heat absorption panel consisting of a microprocessor unit 118, the keypad is added to the input unit. The method according to claim 1, The hot water storage tank is fixed by putting the inner tank 120 in the middle of the outer tank 119, and sensed by the outer tank water temperature sensor 127. When the appropriate temperature is reached, the tank connecting the outer tank and the inner tank with a hollow tube Solar cell module with a heat absorption panel configured to pump to the inner tank using the circulation motor 114.

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