CN103633169A - High-efficiency-concentrating solar receiver - Google Patents

Abstract

The invention relates to a high-efficiency concentrating solar receiver, which belongs to the technical field of solar power generation. Including circuit substrate, corrosion tank, metal welding strip line, negative electrode of circuit, negative electrode connection area, positive electrode of circuit, positive electrode connection area, negative electrode segment array of concentrating photovoltaic cell, concentrating photovoltaic cell chip and small round blind hole array , the circuit substrate is welded with concentrated photovoltaic cell chips and small round blind hole arrays, the circuit substrate is separated into a positive circuit electrode and a negative circuit electrode by an etching groove, and the positive electrode and the negative electrode of the circuit are respectively provided with corresponding positive electrode connection areas And the negative electrode connection area, the metal welding strip wire directly connects the negative electrode segment array of the concentrating photovoltaic cell and the negative electrode of the circuit. The metal welding strip wire in the present invention can connect the large current generated by the concentrating photovoltaic cell chip to the circuit substrate; the arrangement of the negative electrode segment array of the concentrating photovoltaic cell correspondingly increases the sunlight irradiation area, and the concentration The large current generated by the photovoltaic cell chip can be evenly guided out from the three opposite end faces with the shortest stroke, thereby improving the conversion efficiency of the system.

Description

A High Efficiency Concentrating Solar Receiver

technical field

The invention relates to a photovoltaic power generation component, in particular to a high-efficiency concentrating solar receiver, which belongs to the technical field of solar power generation.

Background technique

The concentrated photovoltaic photoelectric conversion receiver is the core component of the concentrated photovoltaic power generation system, which is used to directly convert the light energy gathered by the lens into electrical energy. The larger the multiple of the lens, the fewer the number of concentrated photovoltaic cell chips used per unit area, and the lower the cost of the corresponding concentrated photovoltaic power generation system. More than a thousand times. With the continuous increase of the lens multiple, the current generated on the corresponding concentrating photovoltaic photoelectric conversion receiver is also increasing. The existing concentrating photovoltaic photoelectric conversion receiver can no longer satisfy the light collected by the lens of more than 1000 times. The current demand that can generate electric energy; the multi-coverage area of the electrodes on the concentrating photovoltaic cell chip also greatly reduces the area irradiated by sunlight, and the current generated by the movement of electrons on the negative electrode of the concentrating photovoltaic cell chip cannot be timely Evenly lead out of the concentrating photovoltaic cell chip, or because the electrons travel a long distance, the current will lose the current in the process of passing through most electrons, thus affecting the conversion efficiency of the concentrating photovoltaic system.

Contents of the invention

The object of the present invention is to provide a high-efficiency concentrating solar receiver, and the component is to overcome the deficiencies of the prior art.

In order to achieve the above-mentioned technical purpose, the technical solution adopted by the present invention is: a high-efficiency concentrating solar receiver, which is characterized in that it includes a circuit substrate, a corrosion tank, a metal welding strip line, a negative electrode of the circuit, a negative electrode connection area, The positive electrode of the circuit, the positive electrode connection area, the negative electrode segment array of the concentrating photovoltaic cell, the concentrating photovoltaic cell chip and the small round blind hole array, the concentrating photovoltaic cell chip and the small round blind hole array are welded on the circuit substrate, and the circuit substrate is welded The corrosion tank is divided into the positive electrode of the circuit and the negative electrode of the circuit. The positive electrode of the circuit and the negative electrode of the circuit are respectively provided with a corresponding positive electrode connection area and a negative electrode connection area. The negative electrode is connected directly.

The circuit substrate is one of alumina ceramic base copper clad board, alumina ceramic board, aluminum nitride ceramic board, LED ceramic board, aluminum oxide ceramic board, high thermal conductivity ceramic board and ceramic base copper clad board.

The metal welding strip wire is one of pure aluminum wire, aluminum alloy wire and gold wire.

The negative electrode connection area and the positive electrode connection area are weldable areas.

The array of negative electrode segments of the concentrated photovoltaic cell is distributed on any three end faces of the concentrated photovoltaic cell chip.

The array of negative electrode segments of the concentrated photovoltaic cell is respectively aligned with the corresponding negative electrodes of the circuit on the circuit substrate.

The advantages and positive effects of the present invention are: 1. The metal welding strip wire can connect the large current generated by the concentrated photovoltaic cell chip to the circuit substrate; 2. The arrangement of the array of negative electrode segments of the concentrating photovoltaic cell increases the sunlight irradiation area accordingly, and the large current generated by the concentrating photovoltaic cell chip can evenly flow out from the three opposite end faces with the shortest stroke. Thus, the conversion efficiency of the system is improved.

Description of drawings

Figure 1 is a schematic diagram of a high-efficiency concentrated solar receiver.

Among them: 1. Circuit substrate, 2. Corrosion tank, 3. Metal welding strip line, 4. Negative electrode of the circuit, 5. Negative electrode connection area, 6. Positive electrode of the circuit, 7. Positive electrode connection area, 8. Concentrating photovoltaic An array of battery negative electrode segments, 9, a concentrated photovoltaic cell chip, and 10, an array of small round blind holes.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

A high-efficiency concentrating solar receiver, as shown in Figure 1, a concentrating photovoltaic cell chip 9 and a small round blind hole array 10 are welded on a circuit substrate 1, and the circuit substrate 1 is separated by an etching groove 2 into a circuit positive electrode 6 and The negative electrode 4 of the circuit, the positive electrode 6 of the circuit and the negative electrode 4 of the circuit are respectively provided with corresponding positive electrode connection areas 7 and negative electrode connection areas 5. Electrode 4 communicates directly. Each of the metal welding ribbon lines 3 can withstand a current of 20 amperes, and a plurality of metal welding ribbon lines 3 can withstand a larger current. The light irradiation area and the metal welding strips 3 on the three opposite end faces can evenly guide the large current generated by the concentrated photovoltaic cell chip in the shortest distance, thereby improving the conversion efficiency of the system.

In order to prevent the high temperature from deforming or falling off the various layers on the circuit substrate 1 , many small round blind hole arrays 10 are designed around the circuit substrate 1 .

In the process of placing the concentrated photovoltaic cell chip, the three end faces of the negative electrode of the concentrated photovoltaic cell must be aligned with the three negative electrodes of the circuit on the circuit substrate.

In the patent of the present invention, as a modified example, the number of metal welding strip wires in the negative electrode segment array of each concentrating photovoltaic cell is more than three, and the positive electrode connection area and the negative electrode connection area can be directly welded with wires, or in this area Internally welded wiring card slots, etc., the small round blind hole array can also be a square blind hole array. Therefore, the protection scope of the present invention is subject to the scope defined in the claims.

Claims (6)

1. A high-efficiency concentrating solar receiver is characterized in that it includes a circuit substrate, an etching groove, a metal welding strip line, a negative electrode of a circuit, a negative electrode connection area, a positive electrode of a circuit, a positive electrode connection area, a concentrated photovoltaic Battery negative electrode segment array, concentrating photovoltaic cell chips and small round blind hole arrays, concentrating photovoltaic cell chips and small round blind hole arrays are welded on the circuit substrate, the circuit substrate is separated into circuit positive electrodes and circuit negative electrodes by etching grooves, The positive electrode of the circuit and the negative electrode of the circuit are respectively provided with a corresponding positive electrode connection area and a negative electrode connection area, and the metal welding strip wire directly connects the negative electrode segment array of the concentrating photovoltaic cell and the negative electrode of the circuit. 2. A kind of high-efficiency concentrating solar receiver according to claim 1, characterized in that the circuit substrate is an alumina ceramic based copper clad laminate, alumina ceramic plate, aluminum nitride ceramic plate, LED ceramic substrate, three One of alumina ceramic substrates, high thermal conductivity ceramic substrates and ceramic-based copper clad laminates. 3. A high-efficiency concentrating solar receiver according to claim 1, characterized in that said metal welding ribbon wire is one of pure aluminum wire, aluminum alloy wire and gold wire. 4. A high-efficiency concentrating solar receiver according to claim 1, characterized in that the negative electrode connection area and the positive electrode connection area are weldable areas. 5. A high-efficiency concentrating solar receiver according to claim 1, characterized in that the array of negative electrode segments of the concentrating photovoltaic cell is distributed on any three end faces of the concentrating photovoltaic cell chip. 6. A high-efficiency concentrating solar receiver according to claims 1 and 5, characterized in that the array of negative electrode segments of the concentrating photovoltaic cells is respectively aligned with the corresponding negative electrodes of the circuit on the circuit substrate.

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