WO2015064790A1 - High-capacity high-concentrating solar cell module of which internal series connection of solar cell arrays is easy - Google Patents

High-capacity high-concentrating solar cell module of which internal series connection of solar cell arrays is easy Download PDF

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Publication number
WO2015064790A1
WO2015064790A1 PCT/KR2013/009811 KR2013009811W WO2015064790A1 WO 2015064790 A1 WO2015064790 A1 WO 2015064790A1 KR 2013009811 W KR2013009811 W KR 2013009811W WO 2015064790 A1 WO2015064790 A1 WO 2015064790A1
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WIPO (PCT)
Prior art keywords
array
solar cell
wire
series
plate
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PCT/KR2013/009811
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French (fr)
Korean (ko)
Inventor
김장균
고건웅
김성빈
Original Assignee
주식회사 애니캐스팅
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Publication of WO2015064790A1 publication Critical patent/WO2015064790A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H01L31/0508—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module the interconnection means having a particular shape
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H02S30/10—Frame structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0543—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the refractive type, e.g. lenses
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H02S40/42—Cooling means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

Definitions

  • the present invention relates to a high-capacity, high-concentration solar cell module, and in particular, a plurality of solar cell arrays are easily connected in series, and a separate wire cover for protecting the wires from off-axis sunlight is provided. It relates to a highly concentrating solar cell module that does not need.
  • PV photovoltaic
  • silicon solar cells are mainly used.
  • Multi-junction solar cells have higher energy conversion efficiencies compared to silicon solar cells. In general, multi-junction solar cells have more than 35% energy efficiency, while silicon solar cells are about 20% efficient. Has Particularly under concentration, some multi-junction solar cells now have energy efficiency of over 40%.
  • the light concentrating solar cell module using the multi-junction solar cell includes a plurality of solar cells arranged at predetermined intervals, a primary lens for condensing sunlight primarily, and light condensed from the primary lens to the solar cell. It includes a secondary lens for condensing into a plurality of wires for connecting a plurality of solar cells, the wires connect a plurality of solar cells in series to increase the output voltage of the entire module to a certain level.
  • the high-concentration solar cell module is generally formed in a long rectangular shape, so it protects the wire for series connection from off-axis sunlight in the condensing lens plate and at the same time provides a high level of protection. It is very difficult to connect the solar cells provided at one end of the large capacity unit module and the solar cells provided at the other end in series while providing an insulation scheme.
  • the wires provided in the module are mainly coated wires for the purpose of insulation, in-module solar radiation off-axis the myriad of coated wires for connecting a plurality of solar cells in series There is a problem that the configuration is complicated in that a separate wire cover must be provided in order to protect it from.
  • the present invention is to solve the above problems, it is easy to serially connect a plurality of solar cell arrays in a large capacity solar cell module as well as a separate for protecting the wires from off-axis (off-axis) sunlight Provides a highly light concentrating solar cell module that does not require a wire cover.
  • Highly concentrated solar cell module comprises a frame consisting of a side plate and a lower plate; A lens plate provided on the frame to condense incident sunlight; A solar cell array in which a plurality of solar cells for generating electrical energy from solar light collected by the lens plate are arranged at predetermined intervals on the lower plate to form an array; And a wire connecting the plurality of solar cells to each other in series, wherein the solar cell array includes a first array connected in series and a second array connected in series to be symmetrical with the first array. The inner end of the first array and the inner end of the second array are exposed to the outside of the frame without being connected to each other, and the outer end of the first array and the outer end of the second array may be connected in series.
  • the first array and the second array may be symmetrical with respect to the horizontal center line of the frame.
  • the wire is made of an uncoated ribbon wire, the ribbon wire, the length portion having a predetermined width and length; A pair of stepped portions extending downward from both sides of the length portion; And a pair of flange parts connected to the circuit board on which the solar cell is mounted and extending from the stepped part to support the ribbon wire.
  • the module according to the present invention preferably further comprises an exposed wire which is connected to the outer end of the first array and the outer end of the second array in series and exposed to the outside of the frame, the side plate and the horizontal plate It is preferably made of a longitudinal plate formed longer than the horizontal plate, the support rib for supporting the exposed wire is formed on the outer side of the vertical plate.
  • the module according to the present invention further comprises a circuit board on which the solar cell is mounted, and a heat pipe formed in the horizontal direction to which the circuit board is attached, and a seating part on which the heat pipe is seated on the lower plate.
  • a pair of seating forming ribs may be formed to protrude in the horizontal direction so as to extend in a direction, and a heat dissipation rib may be formed to protrude from the lower plate.
  • an inner locking jaw for fixing the heat pipe seated on the seating portion may be formed on an inner side surface of the seating portion forming rib.
  • the highly concentrating solar cell module according to the present invention having the above configuration can be easily connected in series with a plurality of internal solar cell arrays constituting a large capacity solar cell module in order to have a certain level of output voltage characteristics, in particular, a long rectangular shape It protects the serial connection wires from off-axis solar light in the light collecting lens plate of the high-concentration type solar cell module having a high level of insulation while providing a high level of insulation. There is an effect that it is easy to connect one end in series.
  • the high-concentration solar cell module according to the present invention is made of a ribbon wire that is not coated with a wire connecting the plurality of solar cells, a separate wire cover configuration is not required to protect the wire from sunlight, and thus the overall configuration. The effect is to simplify the assembly.
  • the high-concentration solar cell module according to the present invention does not require a separate configuration for insulation because the ribbon wire is not coated has its own insulating structure, thus the overall configuration and assembly can be simplified.
  • the highly-concentrated solar cell module according to the present invention is directly bonded to the heat pipe is formed in the longitudinal direction having a heat dissipation function to the circuit board on which the solar cell is mounted, and the heat plate is formed in the lower plate bar Since the heat generated from the solar cell is coupled to the above effectively radiated to a large area by the heat pipe and then sequentially radiated to the outside by the lower plate more effectively, there is an effect that can maximize the heat radiation effect.
  • the high-concentration solar cell module according to the present invention has the effect that the heat pipe can be fixed to the lower plate without a separate screw coupling can simplify the overall configuration and assembly.
  • FIG. 1 is a perspective view showing a high light collecting solar cell module according to an embodiment of the present invention
  • FIG. 2 is a partial cross-sectional view taken along the line A-A of FIG. 1,
  • FIG. 3 is a partial cross-sectional view taken along the line B-B of FIG. 1,
  • FIG. 4 is a view schematically showing a solar cell array according to an embodiment of the present invention.
  • FIG. 5 is a perspective view illustrating a state in which a solar cell, a secondary lens, and a wire are coupled to a heat pipe,
  • FIG. 6 is an enlarged view of a portion 'C' of FIG. 2;
  • FIG. 7 is an enlarged view of a portion 'D' of FIG. 3;
  • FIG. 8 is a view showing a state in which the solar cell assembly is coupled to the lower plate
  • FIG. 10 is a schematic plan view of a circuit board.
  • FIG. 1 is a perspective view showing a highly-concentrated solar cell module according to an embodiment of the present invention
  • FIG. 2 is a partial cross-sectional view taken along line AA of FIG. 1
  • FIG. 3 is a cutaway view taken along line BB of FIG. 1. It is a cross section.
  • the highly light-concentrating solar cell module 10 is a frame consisting of a side plate and a lower plate 30, a plurality of arranged at a predetermined interval on the lower plate 30 It includes a solar cell 102, the lens plate 20 for condensing the incident solar light is provided on the frame to the solar cell 102, and the wire 130 for connecting a plurality of solar cells 102 in series with each other .
  • the frame is made long in the longitudinal direction (y), is provided to have a rigidity (stiffness) by itself, it may be made of a side plate and the lower plate 30 is formed in the upper opening.
  • the side plate may be composed of a horizontal plate 25 made short in the horizontal direction (x), and a vertical plate 50 made longer in the longitudinal direction (y) than the horizontal plate 25.
  • a plurality of heat dissipation ribs 51 may be formed in the vertical plate 50 to improve rigidity and increase heat dissipation effect by increasing the contact area with the outside.
  • the vertical plate 50, the horizontal plate 25, and the lower plate 30 constituting the frame may be made of aluminum, which is light and has excellent thermal conductivity with its own rigidity, and is extruded so that the overall manufacturing and assembly can be easily performed. It can be manufactured integrally.
  • the lens plate 20 is configured to condense incident solar light to the solar cell 102 provided on the upper portion of the frame.
  • the lens plate 20 condenses the incident solar light to each of the plurality of solar cells 102.
  • a plurality of pattern portions 22 may be provided, and the pattern portions 22 may be provided in the form of a Fresnel lens.
  • the module 10 according to the present invention is made of a large area, so that a plurality of solar cells 102 for generating electrical energy from the sunlight collected in the lens plate 20 to the heat plate 30 There is provided a large-area solar cell array is arranged at a predetermined interval, in order to increase the overall output of the module 10 it is necessary to connect a plurality of solar cells 102 provided in the module 10 in series with each other.
  • FIG. 4 is a view schematically showing a solar cell array according to an embodiment of the present invention.
  • the solar cell array 80 in which a plurality of solar cells 102 are arranged at predetermined intervals, is symmetrical with a first array 81 and a first array 81 connected in series.
  • the second array 82 is connected in series to form a.
  • the inner end (or center side of the module 10) end 83 of the first array 81 and the inner end (or center side of the module 10) end 84 of the second array 82 are not connected to each other. Without being exposed to the outside of the frame, the outer end 85 of the first array 81 and the outer end 86 of the second array 82 may be connected in series.
  • the solar cell array 80 is connected to all the solar cells 102 provided in one module 10 in series at the same time the pair of inner end (83,84) adjacent to each other And it can be exposed to the outside of the frame in a state close to the horizontal center line 88 of the module 10, and thus can be easily connected in series with a neighboring module.
  • the first array 81 and the second array 82 may be formed symmetrically with respect to the horizontal center line 88 of the module 10.
  • the outer end 85 of the first array 81 and the outer end of the second array 82 may be connected in series by a coated wire provided in the module 10, and exposed to the outside of the frame as shown in the figure. It can also be connected in series by an exposed wire 87.
  • the wire 130 according to the present invention may be formed of an uncoated ribbon wire 130. This eliminates the need for a separate wire cover configuration to protect conventional coated wires from off-axix sunlight, thus simplifying the overall configuration and assembly.
  • the ribbon wire 130 includes a length portion 132, a pair of stepped portions 134 extending downward from both sides of the length portion 132, and a pair of flange portions 136 extending from the stepped passage 134. It can be made, including).
  • the pair of flange portions 136 is a portion connected to the circuit board 104 on which the solar cell 102 is mounted.
  • the flange portion 136 may be attached to the circuit board 104 by soldering or the like.
  • Support 30 That is, the ribbon wire 30 has a structure fixed by itself as a pair of flanges 36 are attached to each other by a soldering, welding, or the like to the circuit board 104 spaced apart from each other.
  • the ribbon wire 30 may be fixed in a more stable state by itself, and is preferably made of a plate shape having a predetermined width as a whole so as to have sufficient current carrying capacity.
  • the length of the length of the ribbon wire 30 can be maintained at a predetermined distance from the bottom of the length portion 32 by a pair of flanges 36 and a pair of stepped portions 34, so that the length portion 32 There is no need for a separate configuration for insulation, so the overall configuration and assembly can be simplified.
  • the outer end 85 of the first array 81 and the outer end of the second array 82 are exposed wires 87 exposed to the outside of the coated wire or frame provided in the module 10.
  • the connection of the pair of outer ends 85 is one end at the other end so that Since the connection distance is very far, when the wire 130 is provided with the ribbon wire 130 having the structure described above, it is difficult to be provided inside the module 10 due to its structure, and thus the exposed wire 87 is exposed to the outside. It is preferred to be connected in series by.
  • the wire 130 is made of an uncoated ribbon wire 130 having the above structure, only the wire for connecting the pair of the outer ends 85 in series is a relatively simple structured coated wire than the ribbon wire.
  • the coated wire may be provided inside the module 10, in this case, the shielded wire provided inside the module 10 may be protected from off-axis sunlight. It is not preferable because a separate wire cover is required.
  • the exposed wire 87 Since the exposed wire 87 is exposed outside the frame, there is no fear of damage from off-axis sunlight, while the exposed wire 87 needs to be prevented from being damaged by the external environment. It is preferable to use it as a general coated wire.
  • the support ribs 52 supporting the exposed wires 87 are further formed on the outer surface of the vertical plate 50, so that the rigidity of the vertical plate 50 can be further improved.
  • the shape of the support ribs 52 is shown to have a shape that is open upward to insert the exposed wire 87 from top to bottom, but on the contrary, it is formed to have a shape that is opened downward to insert the exposed wire 7 from bottom to top. This is preferred. Then, the exposed wire 87 can be supported in a more secure state.
  • FIG. 5 is a perspective view illustrating a state in which a solar cell, a secondary lens, and a wire are coupled to a heat pipe
  • FIG. 6 is an enlarged view of a portion 'C' of FIG. 2
  • FIG. 7 is a portion 'D' of FIG. 3.
  • 8 is a partially enlarged view
  • FIG. 8 is a view illustrating a state in which the solar cell assembly is coupled to the lower plate
  • FIG. 9 is an exploded perspective view of the solar cell assembly and the lower plate.
  • Module 10 includes a heat pipe 110 made to extend in the longitudinal direction (or horizontal direction (x)), and a circuit board 104 on which the solar cell 102 is mounted. .
  • the solar cell 102 is a configuration for converting solar energy into electrical energy.
  • a high efficiency III-V compound semiconductor multi-junction solar cell may be used, and the circuit board 104 may be combined with other components.
  • the solar cell 11 may be a receiver or a carrier generally used in the art. That is, in the present invention, the circuit board 104 is a configuration in which the solar cell 102 is mounted, and the embodiment may be configured in various forms.
  • the circuit board 104 is directly attached to the heat pipe 110 by soldering or soldering. That is, the solar cell assembly 100 according to the present invention is directly attached to the circuit board 104 on which the solar cell 102 is mounted directly by soldering or the like directly on the heat pipe 110 which is elongated in the longitudinal direction having a heat dissipation function. Because it is coupled to the heat generated from the solar cell 102 can be more effectively radiated, and furthermore, the heat generated from the solar cell 102 is effectively transmitted along the longitudinal direction of the heat pipe 110 to be radiated to a large area do.
  • the heat pipe 110 has a coolant tube 112 through which a coolant circulates in a lengthwise direction (or a transverse direction (x)), which is generated from the solar cell 102 mounted on the circuit board 104.
  • Heat is transferred to the coolant tube 112 located directly below, and the transferred heat causes the coolant present in the coolant tube 112 in the region to evaporate and flow to the adjacent region, condensation occurs and returns to the position where it originally evaporated.
  • the heat generated from the solar cell 102 by such a circulation process is to be radiated to a wider area along the longitudinal direction of the heat pipe (110).
  • Module 10 is provided on the heat pipe 110 to cover the circuit board 104, the secondary lens 120 for condensing the sunlight collected from the lens plate 20 to the solar cell 102 ) May be further included.
  • the secondary lens 120 extends downward from the center of the cover portion 122 covering the circuit board 104 and the light incident to the center of the cover portion 122 by internal total reflection. And a lens unit 124 condensing into 102, and a predetermined space 126 may be formed inside the secondary lens 120.
  • the solar cell 102 and the circuit board 104 may be protected from the outside by the cover part 122 of the secondary lens 120. And a separate configuration for protecting the circuit board 104 is not required, and thus the overall configuration and assembly can be simplified.
  • the heat pipe 110 is provided with a groove 114 that is formed to be elongated in the longitudinal direction, the circuit board 104 is preferably provided in the groove 114, the cover portion 122 of the secondary lens 120 The bottom 125 and the solar cell 102 are preferably attached and bonded using a light-transmissive sealing material 103 such as silicon.
  • the secondary lens 120 is incident on the circuit board 104 by reflecting or totally reflecting the light that is collected by the lens plate 20 and does not enter the lens unit 124 among the light incident on the cover 122.
  • An inner side surface 127 may be further provided to prevent it.
  • the lower plate 30 is provided with a seating portion 33 on which the heat pipe 110 made to extend in the longitudinal direction is elongated in the horizontal direction (x), and the seating portion 33 protrudes above the lower plate 30.
  • the pair of mounting portion forming ribs 32 may be formed by being formed in the horizontal direction x.
  • a heat dissipation rib 31 may protrude from a lower portion of the lower plate 30.
  • the highly-concentrated solar cell module 10 attaches and bonds the circuit board 104 on which the solar cell 102 is mounted directly on the heat pipe 110 which is elongated in the longitudinal direction having a heat dissipation function. Since the heat pipe 110 is coupled directly above the lower plate 30 having the heat dissipation ribs 31 formed therein, the heat generated from the solar cell 102 is effectively radiated to a large area by the heat pipe 110. After the lower plate 30 in sequence can be more effectively radiated to the outside, thereby maximizing the radiating effect.
  • An inner locking jaw 34 may be formed on the inner surface of the seating forming rib 32 to fix the heat pipe 110 seated on the seating portion 33. Then, if the heat pipe 110 is forcibly fitted to the seating portion 33 or the heat pipe 110 is coupled to the seating portion 33 while the lower plate 30 is slightly bent, the heat pipe 110 is formed on both sides.
  • the inner locking jaw 34 can be fixed in a locked state. Therefore, the module 10 according to the present invention can easily fix the solar cell assembly 100 to the lower plate 30 without a separate screw coupling, thereby simplifying the overall configuration and assembly.
  • thermally conductive adhesive member sheet 70 made of a thermal interface material (TIM) material is formed. May be interposed.
  • TIM thermal interface material
  • a low melting solder containing tin (Sn), indium (In), silver (Ag), copper (Cu), or the like may be used.
  • the present invention is not limited thereto.
  • the lower plate 30 has a predetermined width in the longitudinal direction (y) and is arranged in the longitudinal direction (y) to combine, a plurality of pieces (plate) lower plate 40 each screwed to the vertical plate (50) It may be made of.
  • a heat radiation rib 31 is formed at each of the lower pieces of the lower plate 40, and coupling ribs 35 are formed at both ends thereof to engage with the adjacent lower pieces of the plate 40, and the vertical plate 50 is formed at the upper end thereof.
  • At least one screw coupling rib 36 and a pair of seating forming ribs 32 for screwing together may be formed.
  • the highly focused solar cell module 10 may further include a fixed elastic member 60 coupled to the pair of mounting portion forming ribs 32 in a state in which the secondary lens 120 is compressed. have.
  • the fixed elastic member 60 extends downward from both sides of the body portion 62 and the body portion 62 to be pressed against the outer protrusions 37 protruding from the outer surface of the pair of seating portion forming ribs 32.
  • the pair of leg parts 66 and the pair of leg parts 66 include fitting holes 64 to which the upper part of the secondary lens 120 is fitted when the outer protrusions 37 are fitted. Therefore, the fixed elastic member 60 has a secondary lens 120 in a state where the body portion 62 is fitted into the fixing hole 64 when the pair of leg portions 66 are forcibly fitted to the outer protrusion 37. ) Can be pressed.
  • the fitting fixing hole 64 is for allowing the sunlight collected from the lens plate 20 to be incident on the lens unit 124.
  • the upper part of the secondary lens 120 inserted into the fitting fixing hole 64 is approximately It becomes the center part of the cover part 122.
  • the heat pipe 110 is compressed at the same time, so that the secondary lens 120 is fixed to the lower plate 30.
  • the heat pipe 110 together with the secondary lens 120 can be more firmly fixed.
  • the contact of the circuit board 104 and the heat pipe 110 and the contact of the heat pipe 110 and the lower plate 30 may be more closely contacted by the crimping of the fixed elastic member 60. It can be maximized.
  • most of the sunlight incident on the upper portion of the secondary lens 120 protruding into the fitting hole 64 of the fixed elastic member 60 is incident on the lens unit 124 to be concentrated by the solar cell 102.
  • off-axis light that does not enter the lens 124 is naturally off-axis because it is mostly blocked or reflected by the body portion 62 of the fixed elastic member 60. It also has the effect of preventing damage to the circuit board 104 due to the light.
  • FIG. 10 is a schematic plan view of a circuit board.
  • the solar cell 102 is mounted at an approximately center portion of the circuit board 104, and two surfaces of the circuit board 104 are not electrically connected to each other on both sides of the solar cell 102.
  • Electroconductive connections 105, 106 may be formed, either one of the two electrically conductive connections 105, 106 being directly connected to the solar cell 102, and the other 106 being connected to the sun by a lead wire 108.
  • the flange portion 136 of the) may be connected as attached by a method such as soldering (soldering), welding (welding). Therefore, the plurality of solar cells 102 spaced apart from each other at predetermined intervals may be energized with each other by the ribbon wire 130.
  • the present invention can be easily connected in series with a large area solar cell array, and does not require a separate wire cover to protect the wires from off-axis sunlight.
  • the embodiments may be modified in various forms. Therefore, the present invention is not limited to the embodiments disclosed in the present specification, and all forms changeable by those skilled in the art to which the present invention pertains will belong to the scope of the present invention.

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Abstract

The present invention relates to a high-concentrating solar cell module and, particularly, to a high-concentrating solar cell module in which a series connection of a plurality of solar cell arrays inside a high-capacity solar cell module is easy and for which a separate wire cover for protecting a wire from off-axis solar light is unnecessary. The high-concentrating solar cell module, according to the present invention, comprises: a frame comprising side surface plates and a lower plate; a lens plate provided on an upper part of the frame to concentrate incident solar light; a solar cell array having a plurality of solar cells provided on the lower plate at a predetermined interval for generating electrical energy by using the solar light concentrated from the lens plate so as to form an array; and a wire for connecting the plurality of solar cells in series to each other, wherein the solar cell array comprises a first array connected in series and a second array connected in series so as to be symmetric with the first array, an inner end of the first array and an inner end of the second array are not connected to each other and exposed to the outside of the frame, and an outer end of the first array and an outer end of the second array can be connected to each other.

Description

태양전지 어레이의 내부 직렬연결이 용이한 대용량 고집광형 태양전지모듈Large-capacity, high-concentration solar cell module for easy internal series connection of solar cell array
본 발명은 대용량 고집광형 태양전지모듈에 관한 것으로서, 구체적으로는 복수의 태양전지 어레이의 직렬연결이 용이하며, 오프-액시스(off-axis)된 태양광으로부터 와이어를 보호하기 위한 별도의 와이어커버가 필요없는 고집광형 태양전지모듈에 관한 것이다. The present invention relates to a high-capacity, high-concentration solar cell module, and in particular, a plurality of solar cell arrays are easily connected in series, and a separate wire cover for protecting the wires from off-axis sunlight is provided. It relates to a highly concentrating solar cell module that does not need.
근래 태양광을 이용한 태양광 발전(Photovoltaic, PV) 장치가 많이 사용되어 지는데, 특히 실리콘 태양전지를 이용한 태양광 발전 장치가 주로 사용된다. Recently, photovoltaic (PV) devices using photovoltaic (PV) are widely used. In particular, photovoltaic devices using silicon solar cells are mainly used.
그러나 고효율 Ⅲ-Ⅴ 화합물 반도체 다중접합 태양전지(multi-junction solar cell)의 비약적인 발전으로 다중접합 태양전지에 저가의 집광장치를 사용하여 태양광을 집중시키는 방식의 집광형 태양광 발전(Concetrating Photovoltaic, CPV) 장치에 대한 연구가 활발히 진행되고 있다.However, with the rapid development of high-efficiency III-V compound semiconductor multi-junction solar cell, concentrating photovoltaic, CPV) devices are actively being researched.
다중접합 태양전지(multi-junction solar cell)는 실리콘 태양전지와 비교하여 높은 에너지 변환 효율을 가지는데, 일반적으로 다중접합 태양전지는 35%가 넘는 에너지 효율을 갖는 반면 실리콘 태양전지는 약 20% 효율을 갖는다. 특히 집광(concentration) 하에서, 현재 일부 다중접합 태양전지는 40%를 넘는 에너지 효율을 갖는다.Multi-junction solar cells have higher energy conversion efficiencies compared to silicon solar cells. In general, multi-junction solar cells have more than 35% energy efficiency, while silicon solar cells are about 20% efficient. Has Particularly under concentration, some multi-junction solar cells now have energy efficiency of over 40%.
이러한 다중접합 태양전지를 이용한 집광형 태양전지 모듈은 소정간격으로 배열되는 다수의 태양전지, 태양광을 1차적으로 집광시키는 1차 렌즈, 상기 1차 렌즈로부터 집광된 광을 상기 태양전지로 2차적으로 집광시키는 2차 렌즈, 다수의 태양전지를 연결하는 와이어를 포함하며, 상기 와이어는 모듈 전체의 출력전압을 일정수준으로 높이기 위하여 다수의 태양전지를 직렬로 연결한다.The light concentrating solar cell module using the multi-junction solar cell includes a plurality of solar cells arranged at predetermined intervals, a primary lens for condensing sunlight primarily, and light condensed from the primary lens to the solar cell. It includes a secondary lens for condensing into a plurality of wires for connecting a plurality of solar cells, the wires connect a plurality of solar cells in series to increase the output voltage of the entire module to a certain level.
최근에는 단위 모듈의 대면적화, 대용량화로 인하여 하나의 모듈 내에는 대략 100개 이상의 태양전지가 배열되는데, 이와 같이 모듈출력의 대용량화를 위해서 대면적 모듈 내부공간에 일정 수 이상의 태양전지를 직렬연결하는 것은 어려운 일이며, 특히 고집광형 태양전지모듈은 긴 직사각형의 형태로 이루어지는 것이 일반적이어서, 집광용 렌즈플레이트에서 오프-액시스(off-axis)된 태양광으로부터 직렬결선용 와이어를 보호함과 동시에 높은 수준의 절연방안을 마련하면서 대용량 단위모듈의 일측 끝에 구비되는 태양전지와 다른 일측 끝에 구비되는 태양전지를 직렬로 연결하는 것은 매우 어렵다.Recently, due to the large area and large capacity of the unit module, about 100 solar cells are arranged in one module. Thus, in order to increase the output of the module, it is necessary to connect a certain number of solar cells in series in a large area inside the module. In particular, the high-concentration solar cell module is generally formed in a long rectangular shape, so it protects the wire for series connection from off-axis sunlight in the condensing lens plate and at the same time provides a high level of protection. It is very difficult to connect the solar cells provided at one end of the large capacity unit module and the solar cells provided at the other end in series while providing an insulation scheme.
한편, 모듈 내에 구비되는 와이어는 절연을 목적으로 주로 피복된 전선이 사용되기 때문에, 모듈 내에는 다수의 태양전지를 직렬연결하기 위한 무수히 많은 피복된 와이어를 오프-액시스(off-axis)된 태양광으로부터 보호하기 위하여 별도의 와이어커버가 구비되어야 한다는 점에서, 그 구성이 복잡하다는 문제가 있다.On the other hand, since the wires provided in the module are mainly coated wires for the purpose of insulation, in-module solar radiation off-axis the myriad of coated wires for connecting a plurality of solar cells in series There is a problem that the configuration is complicated in that a separate wire cover must be provided in order to protect it from.
본 발명은 상기와 같은 문제점을 해결하기 위한 것으로서, 대용량 태양전지모듈 내부의 복수의 태양전지 어레이 직렬연결이 용이할 뿐만 아니라 오프-액시스(off-axis)된 태양광으로부터 와이어를 보호하기 위한 별도의 와이어커버가 필요없는 고집광형 태양전지모듈을 제공한다. The present invention is to solve the above problems, it is easy to serially connect a plurality of solar cell arrays in a large capacity solar cell module as well as a separate for protecting the wires from off-axis (off-axis) sunlight Provides a highly light concentrating solar cell module that does not require a wire cover.
본 발명에 따른 고집광형 태양전지모듈은 측면플레이트와 하부플레이트로 이루어지는 프레임; 상기 프레임 상부에 구비되어 입사된 태양광을 집광하는 렌즈플레이트; 상기 렌즈플레이트에서 집광된 태양광으로부터 전기에너지를 발생시키는 복수의 태양전지가 상기 하부플레이트에 소정간격으로 구비되어 어레이를 이루는 태양전지 어레이; 및 상기 복수개의 태양전지를 서로 직렬 연결하는 와이어;를 포함하고, 상기 태양전지 어레이는 직렬 연결되는 제1어레이와, 상기 제1어레이와 대칭을 이루도록 직렬 연결되는 제2어레이를 포함하고, 상기 제1어레이의 내측 끝단과 상기 제2어레이의 내측 끝단은 각각 서로 연결되지 않은 채로 상기 프레임 외부로 노출되고, 상기 제1어레이의 외측 끝단과 상기 제2어레이의 외측 끝단은 서로 직렬 연결될 수 있다. Highly concentrated solar cell module according to the present invention comprises a frame consisting of a side plate and a lower plate; A lens plate provided on the frame to condense incident sunlight; A solar cell array in which a plurality of solar cells for generating electrical energy from solar light collected by the lens plate are arranged at predetermined intervals on the lower plate to form an array; And a wire connecting the plurality of solar cells to each other in series, wherein the solar cell array includes a first array connected in series and a second array connected in series to be symmetrical with the first array. The inner end of the first array and the inner end of the second array are exposed to the outside of the frame without being connected to each other, and the outer end of the first array and the outer end of the second array may be connected in series.
바람직하게, 상기 제1어레이와 상기 제2어레이는 상기 프레임의 가로중심선을 기준으로 서로 대칭을 이룰수 있다. Preferably, the first array and the second array may be symmetrical with respect to the horizontal center line of the frame.
또한, 상기 와이어는 피복되지 않은 리본 와이어로 이루어지고, 상기 리본 와이어는, 소정의 폭과 길이를 가지는 길이부; 상기 길이부의 양측에서 하방으로 연장되는 한 쌍의 단차부; 및 상기 태양전지가 장착된 회로기판에 연결되어 상기 리본 와이어를 지지하도록 상기 단차부로부터 연장되는 한 쌍의 플랜지부;를 포함할 수 있다. In addition, the wire is made of an uncoated ribbon wire, the ribbon wire, the length portion having a predetermined width and length; A pair of stepped portions extending downward from both sides of the length portion; And a pair of flange parts connected to the circuit board on which the solar cell is mounted and extending from the stepped part to support the ribbon wire.
이 경우 본 발명에 따른 모듈은 상기 제1어레이의 외측 끝단과 상기 제2어레이의 외측 끝단을 직렬 연결하며 상기 프레임 외부로 노출되는 노출와이어를 더 포함함이 바람직하며, 상기 측면플레이트는 가로플레이트와 상기 가로플레이트보다 길게 형성되는 세로플레이트로 이루어지고, 상기 세로플레이트의 외측에는 상기 노출와이어를 지지하는 지지리브가 형성됨이 바람직하다.In this case, the module according to the present invention preferably further comprises an exposed wire which is connected to the outer end of the first array and the outer end of the second array in series and exposed to the outside of the frame, the side plate and the horizontal plate It is preferably made of a longitudinal plate formed longer than the horizontal plate, the support rib for supporting the exposed wire is formed on the outer side of the vertical plate.
또한, 본 발명에 따른 모듈은 상기 태양전지가 장착되는 회로기판과, 가로방향으로 길게 이루어져 상기 회로기판이 부착되는 히트파이프를 더 포함하고, 상기 하부플레이트 상부에는 상기 히트파이프가 안착하는 안착부가 가로방향으로 길게 구비되도록 한 쌍의 안착부형성리브가 가로방향으로 길게 돌출형성되고, 상기 하부플레이트 하부에는 방열리브가 돌출형성될 수 있다. In addition, the module according to the present invention further comprises a circuit board on which the solar cell is mounted, and a heat pipe formed in the horizontal direction to which the circuit board is attached, and a seating part on which the heat pipe is seated on the lower plate. A pair of seating forming ribs may be formed to protrude in the horizontal direction so as to extend in a direction, and a heat dissipation rib may be formed to protrude from the lower plate.
또한, 상기 안착부형성리브의 내측면에는 상기 안착부에 안착된 히트파이프를 고정하는 내측걸림턱이 형성될 수 있다.In addition, an inner locking jaw for fixing the heat pipe seated on the seating portion may be formed on an inner side surface of the seating portion forming rib.
상기와 같은 구성으로 이루어지는 본 발명에 따른 고집광형 태양전지모듈은 일정수준 이상의 출력전압특성을 갖추기 위해 대용량의 태양전지모듈을 구성하는 복수의 내부 태양전지 어레이를 쉽게 직렬 연결할 수 있으며, 특히 긴 직사각형 형태를 가지는 고집광형 태양전지모듈의 집광용 렌즈플레이트에서 오프-액시스(off-axis)된 태양광으로부터 직렬결선용 와이어를 보호함과 동시에 높은 수준의 절연방안을 마련하면서 대용량 단위모듈의 일측 끝단과 다른 일측 끝단을 직렬 연결하기가 용이하다는 효과가 있다. The highly concentrating solar cell module according to the present invention having the above configuration can be easily connected in series with a plurality of internal solar cell arrays constituting a large capacity solar cell module in order to have a certain level of output voltage characteristics, in particular, a long rectangular shape It protects the serial connection wires from off-axis solar light in the light collecting lens plate of the high-concentration type solar cell module having a high level of insulation while providing a high level of insulation. There is an effect that it is easy to connect one end in series.
또한, 본 발명에 따른 고집광형 태양전지모듈은 복수의 태양전지를 연결하는 와이어가 피복되지 않은 리본 와이어로 이루어지기 때문에 태양광으로부터 와이어를 보호하기 위한 별도의 와이어커버 구성이 필요없으며 따라서 그만큼 전체적인 구성과 조립을 간단히 할 수 있는 효과가 있다.In addition, since the high-concentration solar cell module according to the present invention is made of a ribbon wire that is not coated with a wire connecting the plurality of solar cells, a separate wire cover configuration is not required to protect the wire from sunlight, and thus the overall configuration. The effect is to simplify the assembly.
또한, 본 발명에 따른 고집광형 태양전지모듈은 피복되지 않은 리본 와이어가 자체적인 절연적인 구조를 가지기 때문에 절연을 위한 별도의 구성이 필요없으며 따라서 그만큼 전체적인 구성과 조립을 간단히 할 수 있는 효과가 있다.In addition, since the high-concentration solar cell module according to the present invention does not require a separate configuration for insulation because the ribbon wire is not coated has its own insulating structure, thus the overall configuration and assembly can be simplified.
또한, 본 발명에 따른 고집광형 태양전지모듈은 태양전지가 장착된 회로기판을 자체로 방열기능을 가지는 길이방향으로 길게 이루어지는 히트파이프 바로 위에 부착결합시키고 이러한 히트파이프를 하부에 방열리브가 형성된 하부플레이트 바로 위에 결합시키기 때문에 태양전지에서 발생하는 열은 히트파이프에 의해 넓은 영역으로 효과적으로 방열된 후 순차적으로 하부플레이트에 의해 외부로 보다 효과적으로 방열될 수 있으며 따라서 방열효과를 극대화시킬 수 있는 효과가 있다.In addition, the highly-concentrated solar cell module according to the present invention is directly bonded to the heat pipe is formed in the longitudinal direction having a heat dissipation function to the circuit board on which the solar cell is mounted, and the heat plate is formed in the lower plate bar Since the heat generated from the solar cell is coupled to the above effectively radiated to a large area by the heat pipe and then sequentially radiated to the outside by the lower plate more effectively, there is an effect that can maximize the heat radiation effect.
또한, 본 발명에 따른 고집광형 태양전지모듈은 히트파이프가 별도의 나사결합없이 하부플레이트에 결합되어 고정될 수 있어서 전체적인 구성과 조립을 간단히 할 수 있는 효과가 있다. In addition, the high-concentration solar cell module according to the present invention has the effect that the heat pipe can be fixed to the lower plate without a separate screw coupling can simplify the overall configuration and assembly.
본 발명에 따른 효과들은 이상에서 언급된 효과들로 제한되지 않으며, 언급되지 않은 또 다른 효과들은 청구범위와 상세한 설명의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진자에게 명확하게 이해될 수 있을 것이다.Effects according to the present invention are not limited to the above-mentioned effects, and other effects not mentioned above will be clearly understood by those skilled in the art from the claims and the detailed description. Could be.
도 1은 본 발명의 일실시 예에 따른 고집광형 태양전지모듈을 나타내는 사시도이고,1 is a perspective view showing a high light collecting solar cell module according to an embodiment of the present invention,
도 2는 도 1의 A-A 선을 따라 절개한 부분 단면도이고,2 is a partial cross-sectional view taken along the line A-A of FIG. 1,
도 3은 도 1의 B-B 선을 따라 절개한 부분 단면도이고,3 is a partial cross-sectional view taken along the line B-B of FIG. 1,
도 4는 본 발명의 일실시 예에 따른 태양전지 어레이를 개략적으로 나타내는 도면이고,4 is a view schematically showing a solar cell array according to an embodiment of the present invention,
도 5는 태양전지, 2차렌즈 및 와이어가 히트파이프에 결합된 상태를 나타내는 사시도이고, 5 is a perspective view illustrating a state in which a solar cell, a secondary lens, and a wire are coupled to a heat pipe,
도 6은 도 2의 'C' 영역의 부분 확대도이고,FIG. 6 is an enlarged view of a portion 'C' of FIG. 2;
도 7은 도 3의 'D' 영역의 부분 확대도이고,FIG. 7 is an enlarged view of a portion 'D' of FIG. 3;
도 8는 태양전지 어셈블리가 하부플레이트에 결합된 상태를 나타내는 도면이고,8 is a view showing a state in which the solar cell assembly is coupled to the lower plate,
도 9은 태양전지 어셈블리와 하부플레이트의 분해사시도이고,9 is an exploded perspective view of the solar cell assembly and the lower plate,
도 10은 회로기판의 개략적인 평면도이다.10 is a schematic plan view of a circuit board.
이하, 첨부된 도면을 참조하여 본 발명에 따른 실시 예들을 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 발명이 여러 가지 수정 및 변형을 허용하면서도, 그 특정 실시 예들이 도면들로 예시되어 나타내어지며, 이하에서 상세히 설명될 것이다. 그러나 본 발명을 개시된 특별한 형태로 한정하려는 의도는 아니며, 오히려 본 발명은 청구항들에 의해 정의된 본 발명의 사상과 합치되는 모든 수정, 균등 및 대용을 포함한다. While the invention allows for various modifications and variations, specific embodiments thereof are illustrated by way of example in the drawings and will be described in detail below. However, it is not intended to be exhaustive or to limit the invention to the precise forms disclosed, but rather the invention includes all modifications, equivalents, and alternatives consistent with the spirit of the invention as defined by the claims.
또한, 첨부 도면에서 두께 및 크기는 명세서의 명확성을 위해 과장되어진 것이며, 따라서 본 발명은 첨부도면에 도시된 상대적인 크기나 두께에 의해 제한되지 않는다. In addition, the thickness and size in the accompanying drawings are exaggerated for clarity of the specification, the present invention is not limited by the relative size or thickness shown in the accompanying drawings.
한편, 본 명세서에서 '세로방향' 및 '가로방향'과 같은 상대적인 용어는 도면에 도시된 방향을 기준으로 구성들간의 관계를 설명하기 위하여 사용될 수 있으며, 본 발명은 그러한 용어에 의해 한정되지 않는다. On the other hand, relative terms such as "vertical direction" and "landscape direction" in this specification can be used to describe the relationship between the components based on the direction shown in the drawings, the present invention is not limited by such terms.
도 1은 본 발명의 일실시 예에 따른 고집광형 태양전지모듈을 나타내는 사시도이고, 도 2는 도 1의 A-A 선을 따라 절개한 부분단면도이고, 도 3은 도 1의 B-B 선을 따라 절개한 부분단면도이다.1 is a perspective view showing a highly-concentrated solar cell module according to an embodiment of the present invention, FIG. 2 is a partial cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is a cutaway view taken along line BB of FIG. 1. It is a cross section.
도 1 내지 도 3을 참조하면, 본 발명의 일실시 예에 따른 고집광형 태양전지모듈(10)은 측면플레이트와 하부플레이트(30)로 이루어지는 프레임, 하부플레이트(30)에 소정간격으로 배열되는 다수의 태양전지(102), 프레임 상부에 구비되어 입사된 태양광을 태양전지(102)로 집광하는 렌즈플레이트(20), 다수의 태양전지(102)를 서로 직렬 연결하는 와이어(130)를 포함한다. 1 to 3, the highly light-concentrating solar cell module 10 according to an embodiment of the present invention is a frame consisting of a side plate and a lower plate 30, a plurality of arranged at a predetermined interval on the lower plate 30 It includes a solar cell 102, the lens plate 20 for condensing the incident solar light is provided on the frame to the solar cell 102, and the wire 130 for connecting a plurality of solar cells 102 in series with each other .
프레임은 세로방향(y) 길게 이루어지며, 자체로 강성(stiffness)을 가지도록 구비되며, 측면플레이트와 하부플레이트(30)로 이루어져 상방이 개구된 형태로 이루어질 수 있다. The frame is made long in the longitudinal direction (y), is provided to have a rigidity (stiffness) by itself, it may be made of a side plate and the lower plate 30 is formed in the upper opening.
측면플레이트는 가로방향(x)으로 짧게 이루어지는 가로플레이트(25)와, 세로방향(y)으로 가로플레이트(25)보다 길게 이루어지는 세로플레이트(50)로 이루어질 수 있다. 세로플레이트(50)에는 강성을 향상시킴과 동시에 외부와 접촉면적을 증가시켜 방열효과를 향상시킬 수 있는 다수의 방열리브(51)가 형성될 수 있다. The side plate may be composed of a horizontal plate 25 made short in the horizontal direction (x), and a vertical plate 50 made longer in the longitudinal direction (y) than the horizontal plate 25. A plurality of heat dissipation ribs 51 may be formed in the vertical plate 50 to improve rigidity and increase heat dissipation effect by increasing the contact area with the outside.
프레임을 이루는 세로플레이트(50), 가로플레이트(25) 및 하부플레이트(30)는 가벼우면서도 자체적인 강성을 가지는 열전도율이 우수한 알루미늄 재질로 이루어질 수 있으며, 전체적인 제조 및 조립이 쉽게 이루어질 수 있도록 압출성형으로 일체로 제조될 수 있다. The vertical plate 50, the horizontal plate 25, and the lower plate 30 constituting the frame may be made of aluminum, which is light and has excellent thermal conductivity with its own rigidity, and is extruded so that the overall manufacturing and assembly can be easily performed. It can be manufactured integrally.
렌즈플레이트(20)는 프레임 상부에 구비되어 입사된 태양광을 태양전지(102)로 집광시키기 위한 구성으로서, 렌즈플레이트(20)에는 입사된 태양광을 다수의 태양전지(102) 각각으로 집광하는 다수의 패턴부(22)가 구비될 수 있으며, 패턴부(22)는 프레넬 렌즈와 같은 형태로 구비될 수 있다. The lens plate 20 is configured to condense incident solar light to the solar cell 102 provided on the upper portion of the frame. The lens plate 20 condenses the incident solar light to each of the plurality of solar cells 102. A plurality of pattern portions 22 may be provided, and the pattern portions 22 may be provided in the form of a Fresnel lens.
한편, 본 발명에 따른 모듈(10)은 대면적으로 이루어지며, 따라서 내부에는 렌즈플레이트(20)에서 집광된 태양광으로부터 전기에너지를 발생시키는 다수의 태양전지(102)가 히부플레이트(30)에 소정간격으로 배열되어 이루어지는 대면적 태양전지 어레이가 구비되는데, 모듈(10)의 전체 출력을 높이기 위해서는 모듈(10) 내에 구비되는 다수의 태양전지(102)들을 서로 직렬 연결할 필요가 있다. On the other hand, the module 10 according to the present invention is made of a large area, so that a plurality of solar cells 102 for generating electrical energy from the sunlight collected in the lens plate 20 to the heat plate 30 There is provided a large-area solar cell array is arranged at a predetermined interval, in order to increase the overall output of the module 10 it is necessary to connect a plurality of solar cells 102 provided in the module 10 in series with each other.
이하에서는 대면적 태양전지 어레이를 서로 직렬연결하는 구조에 대하여 상세히 설명한다. Hereinafter, a structure for connecting a large area solar cell array in series will be described in detail.
도 4는 본 발명의 일실시 예에 따른 태양전지 어레이를 개략적으로 나타내는 도면이다. 4 is a view schematically showing a solar cell array according to an embodiment of the present invention.
도 4를 참조하면, 다수의 태양전지(102)가 소정간격으로 배열되어 이루어지는 본 발명에 따른 태양전지 어레이(80)는 직렬 연결되는 제1어레이(81)와, 제1어레이(81)와 대칭을 이루도록 직렬 연결되는 제2어레이(82)를 포함한다. Referring to FIG. 4, the solar cell array 80 according to the present invention, in which a plurality of solar cells 102 are arranged at predetermined intervals, is symmetrical with a first array 81 and a first array 81 connected in series. The second array 82 is connected in series to form a.
제1어레이(81)의 내측(또는 모듈(10)의 중심측) 끝단(83)과 제2어레이(82)의 내측(또는 모듈(10)의 중심측) 끝단(84)은 각각 서로 연결되지 않은 채로 프레임 외부로 노출되며, 제1어레이(81)의 외측 끝단(85)과 제2어레이(82)의 외측 끝단(86)은 서로 직렬 연결될 수 있다. The inner end (or center side of the module 10) end 83 of the first array 81 and the inner end (or center side of the module 10) end 84 of the second array 82 are not connected to each other. Without being exposed to the outside of the frame, the outer end 85 of the first array 81 and the outer end 86 of the second array 82 may be connected in series.
그러면, 도면에서 보이는 바와 같이, 태양전지 어레이(80)는 하나의 모듈(10)내에 구비된 모든 태양전지(102)를 직렬연결함과 동시에 상기 한 쌍의 내측 끝단(83,84)이 서로 인접하고 모듈(10)의 가로중심선(88)에 근접한 상태로 프레임 외부로 노출될 수 있으며, 따라서 이웃하는 모듈과의 직렬연결이 용이해질 수 있다. 바람직하게, 제1어레이(81)와 제2어레이(82)는 모듈(10)의 가로중심선(88)을 기준으로 서로 대칭으로 이루어질 수 있다. Then, as shown in the drawing, the solar cell array 80 is connected to all the solar cells 102 provided in one module 10 in series at the same time the pair of inner end (83,84) adjacent to each other And it can be exposed to the outside of the frame in a state close to the horizontal center line 88 of the module 10, and thus can be easily connected in series with a neighboring module. Preferably, the first array 81 and the second array 82 may be formed symmetrically with respect to the horizontal center line 88 of the module 10.
제1어레이(81)의 외측 끝단(85)과 제2어레이(82)의 외측 끝단은 모듈(10) 내부에 구비된 피복된 와이어에 의해 직렬연결될 수도 있으며, 도면에서 보이는 바와 같이 프레임 외부로 노출되는 노출와이어(87)에 의해 직렬연결될 수도 있다. The outer end 85 of the first array 81 and the outer end of the second array 82 may be connected in series by a coated wire provided in the module 10, and exposed to the outside of the frame as shown in the figure. It can also be connected in series by an exposed wire 87.
한편, 본 발명에 따른 와이어(130)는 피복되지 않은 리본 와이어(130)로 이루어질 수 있다. 그러면 오프-액시스(off-axix)된 태양광으로부터 종래의 피복된 와이어를 보호하기 위한 별도의 와이어커버 구성이 필요없으며 따라서 그만큼 전체적인 구성과 조립을 간단히 할 수 있게 된다.Meanwhile, the wire 130 according to the present invention may be formed of an uncoated ribbon wire 130. This eliminates the need for a separate wire cover configuration to protect conventional coated wires from off-axix sunlight, thus simplifying the overall configuration and assembly.
리본 와이어(130)는 길이부(132)와, 길이부(132)의 양측에서 하방으로 연장되는 한 쌍의 단차부(134)와, 단차로(134)로부터 연장되는 한 쌍의 플랜지부(136)를 포함하여 이루어질 수 있다. The ribbon wire 130 includes a length portion 132, a pair of stepped portions 134 extending downward from both sides of the length portion 132, and a pair of flange portions 136 extending from the stepped passage 134. It can be made, including).
한 쌍의 플랜지부(136)는 태양전지(102)가 장착된 회로기판(104)에 연결되는 부위로서, 회로기판(104)과 납땜 등에 의해서 부착결합될 수 있으며, 부착결합된 이후에는 리본 와이어(30)를 지지한다. 즉, 리본 와이어(30)는 한 쌍의 플랜지부(36)가 서로 인접하여 이격된 회로기판(104)에 각각 납땜(soldering), 용접(welding) 등에 의해 부착결합됨에 따라 자체적으로 고정된 구조를 가지게 된다. 리본 와이어(30)는 자체적으로 더욱 안정된 상태로 고정될 수 있고, 충분한 통전능력을 갖도록 전체적으로 소정의 폭을 가지는 플레이트 형태로 이루어짐이 바람직하다. The pair of flange portions 136 is a portion connected to the circuit board 104 on which the solar cell 102 is mounted. The flange portion 136 may be attached to the circuit board 104 by soldering or the like. Support 30. That is, the ribbon wire 30 has a structure fixed by itself as a pair of flanges 36 are attached to each other by a soldering, welding, or the like to the circuit board 104 spaced apart from each other. Have. The ribbon wire 30 may be fixed in a more stable state by itself, and is preferably made of a plate shape having a predetermined width as a whole so as to have sufficient current carrying capacity.
또한 리본 와이어(30)는 한 쌍의 플랜지(36)와 한 쌍의 단차부(34)에 의해서 길이부(32)가 바닥으로부터 상방으로 소정거리 이격된 상태를 유지할 수 있으므로, 길이부(32)의 절연을 위한 별도의 구성이 필요없으며 따라서 그만큼 전체적인 구성과 조립을 간단히 할 수 있다. In addition, the length of the length of the ribbon wire 30 can be maintained at a predetermined distance from the bottom of the length portion 32 by a pair of flanges 36 and a pair of stepped portions 34, so that the length portion 32 There is no need for a separate configuration for insulation, so the overall configuration and assembly can be simplified.
전술한 바와 같이, 제1어레이(81)의 외측 끝단(85)과 제2어레이(82)의 외측 끝단은 모듈(10) 내부에 구비된 피복된 와이어 또는 프레임 외부로 노출되는 노출와이어(87)에 의해 직렬연결될 수 있는데, 본 발명에 따른 모듈(10)에서와 같이 긴 직사각형 형상을 가지는 모듈(10)의 경우에 상기 한 쌍의 외측 끝단(85)의 연결은 일측 끝에서 다른 일측 끝이어서 그 연결거리가 매우 멀기 때문에, 와이어(130)가 상기와 같은 구조를 가지는 리본와이어(130)로 구비되는 경우에는 그 구조상 모듈(10) 내부에 구비되기는 어려우며, 따라서 외부로 노출되는 노출와이어(87)에 의해 직렬연결됨이 바람직하다. As described above, the outer end 85 of the first array 81 and the outer end of the second array 82 are exposed wires 87 exposed to the outside of the coated wire or frame provided in the module 10. In the case of the module 10 having a long rectangular shape as in the module 10 according to the present invention, the connection of the pair of outer ends 85 is one end at the other end so that Since the connection distance is very far, when the wire 130 is provided with the ribbon wire 130 having the structure described above, it is difficult to be provided inside the module 10 due to its structure, and thus the exposed wire 87 is exposed to the outside. It is preferred to be connected in series by.
와이어(130)가 상기와 같은 구조를 가지는 피복되지 않은 리본 와이어(130)로 이루어지더라도, 상기 한 쌍의 외측 끝단(85)을 직렬연결하기 위한 와이어만을 리본 와이어보다 비교적 구조가 간단한 피복된 와이어를 사용하여 상기 피복된 와이어가 모듈(10) 내부에 구비되도록 할 수도 있지만, 이 경우에는 모듈(10) 내부에 구비된 상기 피복된 와이어를 오프-액시스(off-axis)된 태양광으로부터 보호하기 위한 별도의 와이어커버가 필요하기 때문에 바람직하지 않다.Although the wire 130 is made of an uncoated ribbon wire 130 having the above structure, only the wire for connecting the pair of the outer ends 85 in series is a relatively simple structured coated wire than the ribbon wire. Although the coated wire may be provided inside the module 10, in this case, the shielded wire provided inside the module 10 may be protected from off-axis sunlight. It is not preferable because a separate wire cover is required.
노출와이어(87)는 프레임 외부에 노출되기 때문에 오프-액시스(off-axis)된 태양광으로부터 손상될 염려가 없는 반면, 외부 환경에 의한 손상을 방지할 필요는 있으므로, 상기 노출와이어(87)는 일반적인 피복된 와이어로 사용하는 것이 바람직하다. Since the exposed wire 87 is exposed outside the frame, there is no fear of damage from off-axis sunlight, while the exposed wire 87 needs to be prevented from being damaged by the external environment. It is preferable to use it as a general coated wire.
이 경우 세로플레이트(50)의 외측면에는 노출와이어(87)를 지지하는 지지리브(52)가 더 형성됨이 바람직하며, 그러면 세로플레이트(50)의 강성도 더 향상시킬 수 있게 된다. In this case, it is preferable that the support ribs 52 supporting the exposed wires 87 are further formed on the outer surface of the vertical plate 50, so that the rigidity of the vertical plate 50 can be further improved.
도면에는 지지리브(52)의 형상이 노출와이어(87)를 위에서 아래로 끼우도록 위로 열려진 형상을 가진 것이 도시되지만, 반대로 노출와이어(7)를 아래에서 위로 끼우도록 아래로 열려진 형상을 가지도록 형성됨이 바람직하다. 그러면 노출와이어(87)를 보다 안전하게 보호한 상태로 지지할 수 있다. In the figure, the shape of the support ribs 52 is shown to have a shape that is open upward to insert the exposed wire 87 from top to bottom, but on the contrary, it is formed to have a shape that is opened downward to insert the exposed wire 7 from bottom to top. This is preferred. Then, the exposed wire 87 can be supported in a more secure state.
도 5는 태양전지, 2차렌즈 및 와이어가 히트파이프에 결합된 상태를 나타내는 사시도이고, 도 6은 도 2의 'C' 영역의 부분 확대도이고, 도 7은 도 3의 'D' 영역의 부분 확대도이고, 도 8는 태양전지 어셈블리가 하부플레이트에 결합된 상태를 나타내는 도면이고, 도 9은 태양전지 어셈블리와 하부플레이트의 분해사시도이다. 5 is a perspective view illustrating a state in which a solar cell, a secondary lens, and a wire are coupled to a heat pipe, FIG. 6 is an enlarged view of a portion 'C' of FIG. 2, and FIG. 7 is a portion 'D' of FIG. 3. 8 is a partially enlarged view, and FIG. 8 is a view illustrating a state in which the solar cell assembly is coupled to the lower plate, and FIG. 9 is an exploded perspective view of the solar cell assembly and the lower plate.
이하 도 5 내지 도 9를 참조하여 본 발명에 따른 모듈(10)의 다른 구성에 대하여 상세히 설명한다. Hereinafter, another configuration of the module 10 according to the present invention will be described in detail with reference to FIGS. 5 to 9.
본 발명의 일실시 예에 따른 모듈(10)은 길이방향으로(또는 가로방향(x))으로 길게 이루어지는 히트파이프(110)와, 태양전지(102)가 장착된 회로기판(104)을 포함한다. Module 10 according to an embodiment of the present invention includes a heat pipe 110 made to extend in the longitudinal direction (or horizontal direction (x)), and a circuit board 104 on which the solar cell 102 is mounted. .
태양전지(102)는 태양에너지를 전기에너지로 변환하는 구성으로서, 고효율 Ⅲ-Ⅴ 화합물 반도체 다중접합 태양전지(multi-junction solar cell)가 사용될 수 있으며, 회로기판(104)은 다른 부품들과 함께 태양전지(11)가 장착되는 구성으로서, 본 발명이 속하는 기술분야에서 일반적으로 사용하는 리시버(receiver) 또는 캐리어(carrier)일 수 있다. 즉, 본 발명에 있어서 회로기판(104)는 태양전지(102)가 장착되는 구성으로서, 그 실시형태는 다양한 형태로 구성될 수 있다. The solar cell 102 is a configuration for converting solar energy into electrical energy. A high efficiency III-V compound semiconductor multi-junction solar cell may be used, and the circuit board 104 may be combined with other components. As a configuration in which the solar cell 11 is mounted, the solar cell 11 may be a receiver or a carrier generally used in the art. That is, in the present invention, the circuit board 104 is a configuration in which the solar cell 102 is mounted, and the embodiment may be configured in various forms.
회로기판(104)은 히트파이프(110) 위에 납땜 또는 솔더링(soldering) 등에 의해 직접 부착결합된다. 즉, 본 발명에 따른 태양전지 어셈블리(100)는 태양전지(102)가 장착된 회로기판(104)이 자체로 방열기능을 가지는 길이방향으로 길게 이루어지는 히트파이프(110) 바로 위에 솔더링 등에 의해 직접 부착결합되기 때문에 태양전지(102)에서 발생하는 열을 보다 효과적으로 방열시킬 수 있으며, 나아가 태양전지(102)에서 발생한 열은 히트파이프(110)의 길이방향을 따라 효과적으로 전달되어 넓은 영역으로 방열될 수 있게 된다. The circuit board 104 is directly attached to the heat pipe 110 by soldering or soldering. That is, the solar cell assembly 100 according to the present invention is directly attached to the circuit board 104 on which the solar cell 102 is mounted directly by soldering or the like directly on the heat pipe 110 which is elongated in the longitudinal direction having a heat dissipation function. Because it is coupled to the heat generated from the solar cell 102 can be more effectively radiated, and furthermore, the heat generated from the solar cell 102 is effectively transmitted along the longitudinal direction of the heat pipe 110 to be radiated to a large area do.
상세히 설명하면, 히트파이프(110)에는 냉매가 순환하는 냉매관(112)이 길이방향(또는 가로방향(x))으로 길게 형성되는데, 회로기판(104)에 장착된 태양전지(102)에서 발생한 열은 바로 아래에 위치하는 냉매관(112)으로 전달되고, 전달된 열에 의해 그 영역의 냉매관(112)에 존재하는 냉매는 증발하여 인접한 영역으로 흐르면서 응축이 일어나 최초에 증발했던 위치로 다시 돌아오게 되는데, 이와 같은 순환과정에 의해서 태양전지(102)에서 발생한 열은 히트파이프(110)의 길이방향을 따라 보다 넓은 영역으로 방열될 수 있게 되는 것이다. In detail, the heat pipe 110 has a coolant tube 112 through which a coolant circulates in a lengthwise direction (or a transverse direction (x)), which is generated from the solar cell 102 mounted on the circuit board 104. Heat is transferred to the coolant tube 112 located directly below, and the transferred heat causes the coolant present in the coolant tube 112 in the region to evaporate and flow to the adjacent region, condensation occurs and returns to the position where it originally evaporated. The heat generated from the solar cell 102 by such a circulation process is to be radiated to a wider area along the longitudinal direction of the heat pipe (110).
본 발명에 따른 모듈(10)은 회로기판(104)을 덮도록 히트파이프(110) 상부에 구비되어 렌즈플레이트(20)에서 집광된 태양광을 태양전지(102)로 집광하는 2차렌즈(120)를 더 포함할 수 있다. Module 10 according to the present invention is provided on the heat pipe 110 to cover the circuit board 104, the secondary lens 120 for condensing the sunlight collected from the lens plate 20 to the solar cell 102 ) May be further included.
2차렌즈(120)는 회로기판(104)을 덮는 커버부(122)와, 커버부(122) 중심부로부터 하방으로 연장되어 커버부(122) 중심부로 입사된 광을 내부전반사에 의해 태양전지(102)로 집광하는 렌즈부(124)를 포함하며, 2차렌즈(120)의 내부에는 소정의 공간(126)이 형성될 수 있다. The secondary lens 120 extends downward from the center of the cover portion 122 covering the circuit board 104 and the light incident to the center of the cover portion 122 by internal total reflection. And a lens unit 124 condensing into 102, and a predetermined space 126 may be formed inside the secondary lens 120.
따라서 본 발명에 따른 태양전지 어셈블리(100)는 2차렌즈(120)의 커버부(122)에 의해 태양전지(102)와 회로기판(104)이 외부로부터 보호될 수 있기 때문에 태양전지(102)와 회로기판(104)을 보호하기 위한 별도의 구성이 필요없으며 따라서 그만큼 전체적인 구성과 조립을 간단히 할 수 있게 된다. Therefore, in the solar cell assembly 100 according to the present invention, the solar cell 102 and the circuit board 104 may be protected from the outside by the cover part 122 of the secondary lens 120. And a separate configuration for protecting the circuit board 104 is not required, and thus the overall configuration and assembly can be simplified.
히트파이프(110) 상부에는 길이방향으로 길게 형성되는 홈(114)이 구비되고, 회로기판(104)은 홈(114)에 구비됨이 바람직하며, 2차렌즈(120)의 커버부(122) 밑면(125)과 태양전지(102)는 실리콘 등과 같은 투광성 실링재(103)를 이용하여 부착결합됨이 바람직하다. The heat pipe 110 is provided with a groove 114 that is formed to be elongated in the longitudinal direction, the circuit board 104 is preferably provided in the groove 114, the cover portion 122 of the secondary lens 120 The bottom 125 and the solar cell 102 are preferably attached and bonded using a light-transmissive sealing material 103 such as silicon.
한편, 2차렌즈(120)에는 렌즈플레이트(20)에서 집광되어 커버부(122)로 입사된 광 중 렌즈부(124)로 입사하지 않는 광을 반사 또는 전반사시켜 회로기판(104)으로 입사되는 것을 방지하는 내측면(127)이 더 구비될 수 있다. On the other hand, the secondary lens 120 is incident on the circuit board 104 by reflecting or totally reflecting the light that is collected by the lens plate 20 and does not enter the lens unit 124 among the light incident on the cover 122. An inner side surface 127 may be further provided to prevent it.
하부플레이트(30)에는 길이방향으로 길게 이루어지는 히트파이프(110)가 안착하는 안착부(33)가 가로방향(x)으로 길게 구비되는데, 이러한 안착부(33)는 하부플레이트(30) 상부에 돌출형성되는 한 쌍의 안착부형성리브(32)가 가로방향(x)으로 길게 형성됨으로써 구비될 수 있다. The lower plate 30 is provided with a seating portion 33 on which the heat pipe 110 made to extend in the longitudinal direction is elongated in the horizontal direction (x), and the seating portion 33 protrudes above the lower plate 30. The pair of mounting portion forming ribs 32 may be formed by being formed in the horizontal direction x.
또한 하부플레이트(30)의 하부에는 방열리브(31)가 돌출형성될 수 있다. In addition, a heat dissipation rib 31 may protrude from a lower portion of the lower plate 30.
따라서 본 발명에 따른 고집광형 태양전지모듈(10)은 태양전지(102)가 장착된 회로기판(104)을 자체로 방열기능을 가지는 길이방향으로 길게 이루어지는 히트파이프(110) 바로 위에 부착결합시키고, 이러한 히트파이프(110)를 하부에 방열리브(31)가 형성된 하부플레이트(30) 바로 위에 결합시키기 때문에, 태양전지(102)에서 발생하는 열은 히트파이프(110)에 의해 넓은 영역으로 효과적으로 방열된 후 순차적으로 하부플레이트(30)에 의해 외부로 보다 효과적으로 방열될 수 있으며 따라서 방열효과를 극대화시킬 수 있게 된다. Therefore, the highly-concentrated solar cell module 10 according to the present invention attaches and bonds the circuit board 104 on which the solar cell 102 is mounted directly on the heat pipe 110 which is elongated in the longitudinal direction having a heat dissipation function. Since the heat pipe 110 is coupled directly above the lower plate 30 having the heat dissipation ribs 31 formed therein, the heat generated from the solar cell 102 is effectively radiated to a large area by the heat pipe 110. After the lower plate 30 in sequence can be more effectively radiated to the outside, thereby maximizing the radiating effect.
안착부형성리브(32)의 내측면에는 안착부(33)에 안착된 히트파이프(110)를 고정하는 내측걸림턱(34)이 형성될 수 있다. 그러면 히트파이프(110)를 안착부(33)에 억지끼움시키거나 또는 하부플레이트(30)를 살짝 구부린 상태에서 히트파이프(110)를 안착부(33)에 결합시키면, 히트파이프(110)는 양측이 내측걸림턱(34)에 걸림된 상태로 고정될 수 있다. 따라서 본 발명에 따른 모듈(10)은 태양전지 어셈블리(100)를 별도의 나사결합없이도 쉽게 하부플레이트(30)에 결합 고정시킬 수 있어서 전체적인 구성과 조립을 간단히 할 수 있게 된다. An inner locking jaw 34 may be formed on the inner surface of the seating forming rib 32 to fix the heat pipe 110 seated on the seating portion 33. Then, if the heat pipe 110 is forcibly fitted to the seating portion 33 or the heat pipe 110 is coupled to the seating portion 33 while the lower plate 30 is slightly bent, the heat pipe 110 is formed on both sides. The inner locking jaw 34 can be fixed in a locked state. Therefore, the module 10 according to the present invention can easily fix the solar cell assembly 100 to the lower plate 30 without a separate screw coupling, thereby simplifying the overall configuration and assembly.
회로기판(104)과 히트파이프(110) 사이 및 안착부(33)와 히트파이프(110) 사이 중 적어도 어느 하나의 사이에는 TIM(Thermal Interface Material) 소재로 이루어지는 열전도성 밀착부재 시트(70)가 개재될 수 있다. 여기서 열전도성 밀착부재 시트(70)로는 주석(Sn), 인듐(In), 은(Ag), 동(Cu) 등이 함유된 저융점 솔더(Solder)가 사용될 수 있다. 그러나 본 발명은 그에 한정하는 것은 아니다.Between the circuit board 104 and the heat pipe 110 and between at least one of the seating portion 33 and the heat pipe 110, a thermally conductive adhesive member sheet 70 made of a thermal interface material (TIM) material is formed. May be interposed. Here, as the thermally conductive adhesive member sheet 70, a low melting solder containing tin (Sn), indium (In), silver (Ag), copper (Cu), or the like may be used. However, the present invention is not limited thereto.
한편, 하부플레이트(30)는 세로방향(y)으로 소정의 폭을 가지며 세로방향(y)으로 배열되어 결합하며 세로플레이트(50)에 각각 나사 결합하는 다수의 조각(piece)하부플레이트(40)로 이루어질 수 있다. 또한 각각의 조각하부플레이트(40) 하부에는 방열리브(31)가 형성되고, 양끝 단부에는 인접하는 조각하부플레이트(40)와 결합하는 결합리브(35)가 형성되고, 상부에는 세로플레이트(50)와 나사결합하기 위한 나사결합리브(36)와 한 쌍의 안착부형성리브(32)가 적어도 하나 이상 형성될 수 있다. On the other hand, the lower plate 30 has a predetermined width in the longitudinal direction (y) and is arranged in the longitudinal direction (y) to combine, a plurality of pieces (plate) lower plate 40 each screwed to the vertical plate (50) It may be made of. In addition, a heat radiation rib 31 is formed at each of the lower pieces of the lower plate 40, and coupling ribs 35 are formed at both ends thereof to engage with the adjacent lower pieces of the plate 40, and the vertical plate 50 is formed at the upper end thereof. At least one screw coupling rib 36 and a pair of seating forming ribs 32 for screwing together may be formed.
한편, 본 발명에 따른 고집광형 태양전지모듈(10)은 2차렌즈(120)를 압착하는 상태로 한 쌍의 안착부형성리브(32)에 결합하는 고정탄성부재(60)를 더 포함할 수 있다. On the other hand, the highly focused solar cell module 10 according to the present invention may further include a fixed elastic member 60 coupled to the pair of mounting portion forming ribs 32 in a state in which the secondary lens 120 is compressed. have.
고정탄성부재(60)는 바디부(62), 바디부(62)의 양측에서 하방으로 연장되어 한 쌍의 안착부형성리브(32)의 외측면에 돌출형성된 외측돌기(37)에 억지끼움되는 한 쌍의 다리부(66) 및 한 쌍의 다리부(66)가 외측돌기(37)에 억지끼움된 경우에 2차렌즈(120)의 상부가 끼움되는 끼움고정홀(64)을 포함한다. 따라서 고정탄성부재(60)는 한 쌍의 다리부(66)가 외측돌기(37)에 억지끼움된 경우에 바디부(62)가 끼움고정홀(64)에 끼움된 상태의 2차렌즈(120)를 압착할 수 있게 된다. 여기서 끼움고정홀(64)은 렌즈플레이트(20)에서 집광된 태양광이 렌즈부(124)로 입사되도록 하기 위한 것으로서, 끼움고정홀(64)로 삽입되는 2차렌즈(120)의 상부는 대략 커버부(122)의 중심부가 된다. The fixed elastic member 60 extends downward from both sides of the body portion 62 and the body portion 62 to be pressed against the outer protrusions 37 protruding from the outer surface of the pair of seating portion forming ribs 32. The pair of leg parts 66 and the pair of leg parts 66 include fitting holes 64 to which the upper part of the secondary lens 120 is fitted when the outer protrusions 37 are fitted. Therefore, the fixed elastic member 60 has a secondary lens 120 in a state where the body portion 62 is fitted into the fixing hole 64 when the pair of leg portions 66 are forcibly fitted to the outer protrusion 37. ) Can be pressed. Here, the fitting fixing hole 64 is for allowing the sunlight collected from the lens plate 20 to be incident on the lens unit 124. The upper part of the secondary lens 120 inserted into the fitting fixing hole 64 is approximately It becomes the center part of the cover part 122.
그리고 이와 같이 고정탄성부재(60)가 2차렌즈(120)을 압착하게 되면, 그와 동시에 히트파이프(110)를 압착하게 되므로, 2차렌즈(120)를 하부플레이트(30)에 고정시키기가 용이할 뿐만 아니라 2차렌즈(120)와 함께 히트파이프(110)도 보다 견고하게 고정할 수 있게 된다. 또한 고정탄성부재(60)의 압착에 의해 회로기판(104)과 히트파이프(110)의 접촉 및 히트파이프(110)와 하부플레이트(30)의 접촉이 보다 밀착될 수 있어서 그에 따라 방열효과가 더욱 극대화시킬 수 있게 된다. 또한 고정탄성부재(60)의 끼움고정홀(64)로 돌출된 2차렌즈(120)의 상부로 입사하는 태양광은 거의 대부분이 렌즈부(124)로 입사하여 태양전지(102)로 집광될 수 있는 반면, 렌즈(124)로 입사되지 않는 오프-액시스(off-axis)된 광들은 대부분 고정탄성부재(60)의 바디부(62)에 의해 차단되거나 반사되기 때문에, 자연적으로 오프-액시스된 광들로 인한 회로기판(104)의 손상을 방지할 수 있는 효과도 가지게 된다. When the fixed elastic member 60 compresses the secondary lens 120 in this way, the heat pipe 110 is compressed at the same time, so that the secondary lens 120 is fixed to the lower plate 30. In addition to being easy, the heat pipe 110 together with the secondary lens 120 can be more firmly fixed. In addition, the contact of the circuit board 104 and the heat pipe 110 and the contact of the heat pipe 110 and the lower plate 30 may be more closely contacted by the crimping of the fixed elastic member 60. It can be maximized. In addition, most of the sunlight incident on the upper portion of the secondary lens 120 protruding into the fitting hole 64 of the fixed elastic member 60 is incident on the lens unit 124 to be concentrated by the solar cell 102. On the other hand, off-axis light that does not enter the lens 124 is naturally off-axis because it is mostly blocked or reflected by the body portion 62 of the fixed elastic member 60. It also has the effect of preventing damage to the circuit board 104 due to the light.
도 10은 회로기판의 개략적인 평면도이다.10 is a schematic plan view of a circuit board.
도 10을 참조하면, 태양전지(102)는 회로기판(104)의 대략 중심부에 장착되고, 회로기판(104)의 표면에는 태양전지(102)를 기준으로 양측으로 서로 전기적으로 연결되지 않는 2개의 전기전도성 연결부(105,106)가 형성될 수 있으며, 2개의 전기전도성 연결부(105,106) 중 어느 하나(105)는 태양전지(102)에 직접 연결되고, 다른 하나(106)는 리드선(108)에 의해 태양전지(102)에 연결될 수 있으며, 2개의 전기전도성 연결부(105,106) 사이에는 바이패스다이오드(by-pass diode)(107)가 구비될 수 있으며, 2개의 전기전도성 연결부(105,106)에는 리본 와이어(130)의 플랜지부(136)가 납땜(soldering), 용접(welding) 등의 방법으로 부착결합됨에 따라 연결될 수 있다. 따라서 서로 소정간격으로 이격된 복수의 태양전지(102)는 리본 와이어(130)에 의해 서로 통전될 수 있게 된다. Referring to FIG. 10, the solar cell 102 is mounted at an approximately center portion of the circuit board 104, and two surfaces of the circuit board 104 are not electrically connected to each other on both sides of the solar cell 102. Electroconductive connections 105, 106 may be formed, either one of the two electrically conductive connections 105, 106 being directly connected to the solar cell 102, and the other 106 being connected to the sun by a lead wire 108. And a by-pass diode 107 between two electrically conductive connections 105 and 106, and a ribbon wire 130 between the two electrically conductive connections 105 and 106. The flange portion 136 of the) may be connected as attached by a method such as soldering (soldering), welding (welding). Therefore, the plurality of solar cells 102 spaced apart from each other at predetermined intervals may be energized with each other by the ribbon wire 130.
이상에서 살펴본 바와 같이, 본 발명은 대면적 태양전지 어레이의 직렬연결이 용이하며, 오프-액시스(off-axis)된 태양광으로부터 와이어를 보호하기 위한 별도의 와이어커버가 필요없는 고집광형 태양전지모듈에 관한 것으로서, 그 실시 형태는 다양한 형태로 변경가능하다 할 것이다. 따라서 본 발명은 본 명세서에서 개시된 실시 예에 의해 한정되지 않으며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 변경 가능한 모든 형태도 본 발명의 권리범위에 속한다 할 것이다.As described above, the present invention can be easily connected in series with a large area solar cell array, and does not require a separate wire cover to protect the wires from off-axis sunlight. As related to the present invention, the embodiments may be modified in various forms. Therefore, the present invention is not limited to the embodiments disclosed in the present specification, and all forms changeable by those skilled in the art to which the present invention pertains will belong to the scope of the present invention.

Claims (7)

  1. 측면플레이트와 하부플레이트로 이루어지는 프레임;A frame consisting of side plates and bottom plates;
    상기 프레임 상부에 구비되어 입사된 태양광을 집광하는 렌즈플레이트;A lens plate provided on the frame to condense incident sunlight;
    상기 렌즈플레이트에서 집광된 태양광으로부터 전기에너지를 발생시키는 복수의 태양전지가 상기 하부플레이트에 소정간격으로 구비되어 어레이를 이루는 태양전지 어레이; 및A solar cell array in which a plurality of solar cells for generating electrical energy from solar light collected by the lens plate are arranged at predetermined intervals on the lower plate to form an array; And
    상기 복수개의 태양전지를 서로 직렬 연결하는 와이어;를 포함하고,Includes; wire for connecting the plurality of solar cells in series with each other,
    상기 태양전지 어레이는 직렬 연결되는 제1어레이와, 상기 제1어레이와 대칭을 이루도록 직렬 연결되는 제2어레이를 포함하고, The solar cell array includes a first array connected in series and a second array connected in series to be symmetrical with the first array,
    상기 제1어레이의 내측 끝단과 상기 제2어레이의 내측 끝단은 각각 서로 연결되지 않은 채로 상기 프레임 외부로 노출되고, 상기 제1어레이의 외측 끝단과 상기 제2어레이의 외측 끝단은 서로 직렬 연결되는 것을 특징으로 하는 고집광형 태양전지모듈.The inner end of the first array and the inner end of the second array are exposed to the outside of the frame without being connected to each other, and the outer end of the first array and the outer end of the second array are connected in series. Highly concentrated solar cell module characterized in that.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 제1어레이와 상기 제2어레이는 상기 프레임의 가로중심선을 기준으로 서로 대칭을 이루는 것을 특징으로 하는 고집광형 태양전지모듈.And said first array and said second array are symmetrical with respect to the horizontal center line of said frame.
  3. 제 1 항에 있어서,The method of claim 1,
    상기 와이어는 피복되지 않은 리본 와이어로 이루어지고, The wire consists of an uncoated ribbon wire,
    상기 리본 와이어는,The ribbon wire,
    소정의 폭과 길이를 가지는 길이부;A length portion having a predetermined width and length;
    상기 길이부의 양측에서 하방으로 연장되는 한 쌍의 단차부; 및A pair of stepped portions extending downward from both sides of the length portion; And
    상기 태양전지가 장착된 회로기판에 연결되어 상기 리본 와이어를 지지하도록 상기 단차부로부터 연장되는 한 쌍의 플랜지부;를 포함하는 것을 특징으로 하는 고집광형 태양전지모듈. And a pair of flange parts connected to the circuit board on which the solar cell is mounted and extending from the stepped part to support the ribbon wire.
  4. 제 3 항에 있어서,The method of claim 3, wherein
    상기 모듈은 상기 제1어레이의 외측 끝단과 상기 제2어레이의 외측 끝단을 직렬 연결하며 상기 프레임 외부로 노출되는 노출와이어를 더 포함하는 것을 특징으로 하는 고집광형 태양전지모듈.The module further comprises an exposure wire connected to the outer end of the first array and the outer end of the second array in series and exposed to the outside of the frame.
  5. 제 4 항에 있어서,The method of claim 4, wherein
    상기 측면플레이트는 가로플레이트와 상기 가로플레이트보다 길게 형성되는 세로플레이트로 이루어지고, 상기 세로플레이트의 외측에는 상기 노출와이어를 지지하는 지지리브가 형성되는 것을 특징으로 하는 고집광형 태양전지모듈.The side plate is made of a horizontal plate and a vertical plate formed longer than the horizontal plate, the high concentration solar cell module, characterized in that the support ribs for supporting the exposed wire is formed on the outside of the vertical plate.
  6. 제 1 항에 있어서, The method of claim 1,
    상기 모듈은 상기 태양전지가 장착되는 회로기판과, 가로방향으로 길게 이루어져 상기 회로기판이 부착되는 히트파이프를 더 포함하고, The module further includes a circuit board on which the solar cell is mounted, and a heat pipe formed in the horizontal direction and attached to the circuit board.
    상기 하부플레이트 상부에는 상기 히트파이프가 안착하는 안착부가 가로방향으로 길게 구비되도록 한 쌍의 안착부형성리브가 가로방향으로 길게 돌출형성되고, 상기 하부플레이트 하부에는 방열리브가 돌출형성되는 것을 특징으로 하는 고집광형 태양전지모듈.A pair of seating portion forming ribs protrude in the horizontal direction so that the seating portion on which the heat pipe is seated is provided in the horizontal direction, and a heat dissipation rib is formed in the lower portion of the lower plate. Solar module.
  7. 제 6 항에 있어서,The method of claim 6,
    상기 안착부형성리브의 내측면에는 상기 안착부에 안착된 히트파이프를 고정하는 내측걸림턱이 형성되는 것을 특징으로 하는 고집광형 태양전지모듈. The inner light collecting solar cell module, characterized in that the inner engaging jaw for fixing the heat pipe seated on the seating portion is formed on the inner surface of the seating portion forming rib.
PCT/KR2013/009811 2013-10-31 2013-10-31 High-capacity high-concentrating solar cell module of which internal series connection of solar cell arrays is easy WO2015064790A1 (en)

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US20080185031A1 (en) * 2007-02-06 2008-08-07 Pei-Choa Wang Focused type solar plate assembly having heat-dissipating module
US20090223555A1 (en) * 2008-03-05 2009-09-10 Stalix Llc High Efficiency Concentrating Photovoltaic Module Method and Apparatus
JP2010165995A (en) * 2009-01-19 2010-07-29 Sharp Corp Concentrator photovoltaic module
US20110030764A1 (en) * 2008-03-06 2011-02-10 Dae-Ho Seo Photovoltaic cell assembly
US20110263067A1 (en) * 2008-02-11 2011-10-27 Emcore Solar Power, Inc. Methods of Forming a Concentrating Photovoltaic Module

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080185031A1 (en) * 2007-02-06 2008-08-07 Pei-Choa Wang Focused type solar plate assembly having heat-dissipating module
US20110263067A1 (en) * 2008-02-11 2011-10-27 Emcore Solar Power, Inc. Methods of Forming a Concentrating Photovoltaic Module
US20090223555A1 (en) * 2008-03-05 2009-09-10 Stalix Llc High Efficiency Concentrating Photovoltaic Module Method and Apparatus
US20110030764A1 (en) * 2008-03-06 2011-02-10 Dae-Ho Seo Photovoltaic cell assembly
JP2010165995A (en) * 2009-01-19 2010-07-29 Sharp Corp Concentrator photovoltaic module

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