WO2013081356A1 - Solar cell module and method of fabricating the same - Google Patents

Solar cell module and method of fabricating the same Download PDF

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Publication number
WO2013081356A1
WO2013081356A1 PCT/KR2012/010122 KR2012010122W WO2013081356A1 WO 2013081356 A1 WO2013081356 A1 WO 2013081356A1 KR 2012010122 W KR2012010122 W KR 2012010122W WO 2013081356 A1 WO2013081356 A1 WO 2013081356A1
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WO
WIPO (PCT)
Prior art keywords
solar cell
cell module
junction box
support substrate
bus bar
Prior art date
Application number
PCT/KR2012/010122
Other languages
French (fr)
Inventor
Kyung Ho Kang
Original Assignee
Lg Innotek Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lg Innotek Co., Ltd. filed Critical Lg Innotek Co., Ltd.
Publication of WO2013081356A1 publication Critical patent/WO2013081356A1/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
    • H01L31/02—Details
    • H01L31/02002—Arrangements for conducting electric current to or from the device in operations
    • H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
    • H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
    • H01L31/0201—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising specially adapted module bus-bar 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
    • H01L31/02—Details
    • H01L31/02002—Arrangements for conducting electric current to or from the device in operations
    • H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
    • H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
    • H01L31/02013—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising output lead wires elements
    • 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
    • H01L31/048—Encapsulation of modules
    • 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
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • 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

Definitions

  • the disclosure relates to a solar cell module and a method of fabricating the same. More particularly, the disclosure relates to a solar cell module having improved reliability and improved productibility and a method of fabricating the same.
  • a solar cell (or photovoltaic cell) is a core element in solar power generation to directly convert solar light into electricity.
  • the solar light having energy greater than band-gap energy of a semiconductor is incident into a solar cell having the P-N junction structure of a semiconductor, electron-hole pairs are generated. As electrons and holes are collected into an N layer and a P layer, respectively, due to the electric field formed in a PN junction part, photovoltage is generated between the N and P layers. In this case, if a load is connected to electrodes provided at both ends of the solar cell, current flows through the solar cell.
  • the current generated from the solar cell is transferred to a junction box through a bus bar.
  • a portion of the bus bar may be exposed to the external environment, so that the reliability can be reduced.
  • the junction box when the junction box is formed on the bottom surface of the lower substrate, since the bonding area between the lower substrate and the junction box is not wide, the junction box may be separated from the lower substrate due to the external force. Accordingly, the improvement of the adhesive strength between the lower substrate and the junction box is required.
  • the embodiment provides a solar cell module in which holes are formed at the peripheral portion of a support substrate, and a junction box is filled in the holes while making contact with the bus bar, so that the bus bar can be coupled with the junction box without being exposed to the outside, thereby improving the reliability of the device.
  • the embodiment provides a solar cell module in which a junction box includes a protrusion inserted into a hole so the protrusion is filled in a hole formed in the lower substrate, so that the junction box can structurally firmly support the lower substrate.
  • a solar cell module including a support substrate including at least one hole formed at a peripheral region thereof, solar cells at an upper portion of the support substrate, a bus bar electrically connected to the solar cells, and a junction box connected to the bus bar.
  • the junction box includes an insertion part having a portion inserted into the hole.
  • holes are formed at the peripheral portion of the support substrate, and the junction box is filled in the holes while making contact with the bus bar, so that the bus bar can be coupled with the junction box without being exposed to the outside, thereby improving the reliability of the device.
  • the junction box since the junction box includes the protrusion inserted into the hole so the protrusion is filled in the hole formed in the lower substrate, the junction box can structurally firmly support the lower substrate.
  • FIG. 1 is a perspective view showing a solar cell module according to the embodiment
  • FIG. 2 is a top view showing the solar cell module according to the embodiment
  • FIG. 3 is a sectional view showing the solar cell module according to the embodiment.
  • FIG. 4 is a perspective view showing a junction box according to the embodiment.
  • FIG.1 is a perspective view showing a solar cell module according to the embodiment.
  • FIG. 2 is a top view showing the solar cell module according to the embodiment.
  • FIG. 3 is a sectional view showing the solar cell module according to the embodiment.
  • FIG. 4 is a perspective view showing the junction box according to the embodiment.
  • the solar cell module includes solar cells 320, a support substrate 310 to support the solar cells 320, a bus bar 400 electrically connected to the solar cells 300, and a junction box 500 connected to the bus bar 400. A portion of the junction box 500 is inserted into a hole of the support substrate 310.
  • the support substrate 310 may include an insulator.
  • the support substrate 310 may include a plastic substrate, or a metallic substrate.
  • the support substrate 310 may include a soda lime glass substrate.
  • the support substrate 310 may be transparent.
  • the support substrate 310 may be rigid or flexible.
  • the solar cells 320 may be formed on the support substrate 310, and may have a plate shape.
  • the solar cells 320 may have the shape of a rectangular plate.
  • the solar cells 320 receive the solar light and convert the solar light into electrical energy.
  • Frames 110, 120, 130, and 140 may be formed at the lateral sides of the solar cells 320 to receive the solar cells 320.
  • the frames 110, 120, 130, and 140 are provided at four lateral sides of the solar cells 320.
  • the frame 110, 120, 130, and 140 may include metal such as aluminum (Al).
  • the solar cells 320 are provided at the upper portion thereof with a protective layer 330 to protect the solar cells 320, and an upper substrate 340 is provided on the protective layer 330.
  • the above parts may be integrated with each other through a lamination process.
  • the upper substrate 340 and the support substrate 310 protect the solar cells 320 from an external environment.
  • the upper substrate 340 and the support substrate 310 may have a multiple-layer structure including a layer preventing moisture and oxygen from being infiltrated, a layer preventing chemical corrosion, and a layer having an insulating characteristic.
  • the protective layer 330 is integrally formed with the solar cells 320 through a lamination process in the state that the protective layer 330 is provided on the solar cells 320.
  • the protective layer 330 protects the solar cells 320 from being corroded due to moisture infiltration, and protects the solar cells 320 from the shock.
  • the protective layer 330 may include ethylene vinyl acetate (EVA).
  • EVA ethylene vinyl acetate
  • the protective layer 330 may be provided under the solar cells 320.
  • the upper substrate 340 provided on the protective layer 330 includes tempered glass representing high transmittance and having a superior anti-breakdown function.
  • the tempered glass may include low iron tempered glass including the low content of iron.
  • the upper substrate 340 has an embossed inner side in order to enhance the scattering of light.
  • the bus bar 400 is connected to the solar cells 320.
  • the bus bar 400 is provided on the top surface of the outermost solar cells 320.
  • the bus bar 400 may directly make contact with the top surface of the outermost solar cells 320.
  • a bus bar formed at one end portion of the solar cells 320 and a bus bar formed at an opposite end portion of the solar cells 320 may be connected to the solar cells 320 when representing different polarities. For example, if the bus bar formed at the one end of the solar cells 320 is operated with a positive polarity, the bus bar formed at the opposite end of the solar cells 320 is operated with a negative polarity.
  • the junction box 500 is electrically connected to the solar cells 320.
  • the junction box 500 may be formed at the peripheral portion of the support substrate 310, and connected to the bus bar 400.
  • the support substrate 310 is provided at the lateral side thereof with holes 50.
  • the holes 50 may be formed by processing portions of the support substrate 310. Although the holes 50 are formed in the widthwise side of the drawing, the holes 50 may be formed in the lengthwise side of the drawing.
  • Each solar cell 320 has a width smaller than that of the support substrate 310. Since the hole 50 is formed at the peripheral region of the support substrate 310 without the solar cells 320, the light receiving area can be ensured.
  • the holes 50 may be formed at the edge portions of the support substrate 310.
  • the holes 50 are formed through the support substrate 310 while making contact with the edge portion of the support substrate 310. Therefore, if the holes 50 have a spherical shape, the holes 50 may have a circular sectional shape as shown in FIG. 2. In addition, the holes 50 may have a rectangular shape, but the embodiment is not limited thereto.
  • the sectional shape of the hole 50 may be formed by two semicircles. A plurality of holes 50 are spaced apart from each other.
  • the junction box 500 may be filled in the hole 50.
  • the junction box 500 may have an area corresponding to that of the hole 50.
  • the bus bar 400 is inserted into the hole 50, and bent so that the bus bar 400 makes contact with the junction box 500.
  • the junction box 500 may include an insertion part 550 inserted into the hole 50 and a support part 560 to support the insertion part 550.
  • the bus bar 400 may be connected to the junction box 500 through the top surface of the support part 560. That is to say, the bus bar 400 may be connected to the junction box 500 through the top surface of the support part 560 making contact with the bottom surface of the support substrate 310.
  • the bus bar 400 may be bent on the top surface of the solar cells 320 to extend toward the hole 50.
  • the junction box 500 may include a by-pass diode, and may receive the circuit board connected to the bus bar 400 and a cable 600.
  • the cable 600 is connected to the circuit board, and electrically connected to the solar cells 320 through the junction box 500.
  • the holes are formed in the support substrate, and the bus bar is electrically connected to the junction box through the holes.
  • the bonding between the junction box and the bottom surface of the support substrate depends on the contact area between the junction box and the bottom surface of the support substrate. Accordingly, the improvement in the adhesive strength between the junction box and the bottom surface of the support substrate is required.
  • the holes 50 are formed at the edge portion of the support substrate 310, and the bus bar 400 is bent while passing through the hole 50 to make contact with the junction box 500. Since the insertion part 550 of the junction box 500 is filled in the hole 50, the bus bar 400 is not exposed to the outside by the insertion part 500, so that the reliability can be improved.
  • the bonding area between the junction box 500 and the support substrate 310 is increased by the insertion part 550, and the junction box 500 can be firmly coupled with the support substrate 310 in the structure thereof, so that the junction box 500 can be prevented from being separated from the support substrate 310 by external pressure.
  • FIG. 4 is a perspective view showing the junction box according to the embodiment.
  • the junction box 500 may include the support part 560 and the insertion part 550.
  • the insertion part 550 is inserted into the hole 50, and the support part 560 is formed on the bottom surface of the support substrate 310 to the insertion part 550.
  • the support part 560 may have a sectional area wider than that of the insertion part 550.
  • any reference in this specification to one embodiment, an embodiment, example embodiment, etc. means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention.
  • the appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment.

Abstract

Disclosed is a solar cell module. The solar cell module includes a support substrate including at least one hole formed at a peripheral region thereof, solar cells at an upper portion of the support substrate, a bus bar electrically connected to the solar cells, and a junction box connected to the bus bar. The junction box includes an insertion part having a portion inserted into the hole.

Description

SOLAR CELL MODULE AND METHOD OF FABRICATING THE SAME
The disclosure relates to a solar cell module and a method of fabricating the same. More particularly, the disclosure relates to a solar cell module having improved reliability and improved productibility and a method of fabricating the same.
Recently, as the lack of an energy resource such as petroleum or coal is expected, the interest in the substitute energy has been more increased. In this regard, a solar cell converting solar energy into electrical energy has been spotlighted.
A solar cell (or photovoltaic cell) is a core element in solar power generation to directly convert solar light into electricity.
For example, if the solar light having energy greater than band-gap energy of a semiconductor is incident into a solar cell having the P-N junction structure of a semiconductor, electron-hole pairs are generated. As electrons and holes are collected into an N layer and a P layer, respectively, due to the electric field formed in a PN junction part, photovoltage is generated between the N and P layers. In this case, if a load is connected to electrodes provided at both ends of the solar cell, current flows through the solar cell.
The current generated from the solar cell is transferred to a junction box through a bus bar. In general, when connecting the bus bar formed on the top surface of a solar cell panel to the junction box formed on the bottom surface of a lower substrate, a portion of the bus bar may be exposed to the external environment, so that the reliability can be reduced.
In addition, when the junction box is formed on the bottom surface of the lower substrate, since the bonding area between the lower substrate and the junction box is not wide, the junction box may be separated from the lower substrate due to the external force. Accordingly, the improvement of the adhesive strength between the lower substrate and the junction box is required.
The embodiment provides a solar cell module in which holes are formed at the peripheral portion of a support substrate, and a junction box is filled in the holes while making contact with the bus bar, so that the bus bar can be coupled with the junction box without being exposed to the outside, thereby improving the reliability of the device.
The embodiment provides a solar cell module in which a junction box includes a protrusion inserted into a hole so the protrusion is filled in a hole formed in the lower substrate, so that the junction box can structurally firmly support the lower substrate.
According to the embodiment, there is provided a solar cell module including a support substrate including at least one hole formed at a peripheral region thereof, solar cells at an upper portion of the support substrate, a bus bar electrically connected to the solar cells, and a junction box connected to the bus bar. The junction box includes an insertion part having a portion inserted into the hole.
As described above, according to the solar cell module of the embodiment, holes are formed at the peripheral portion of the support substrate, and the junction box is filled in the holes while making contact with the bus bar, so that the bus bar can be coupled with the junction box without being exposed to the outside, thereby improving the reliability of the device.
In addition, since the junction box includes the protrusion inserted into the hole so the protrusion is filled in the hole formed in the lower substrate, the junction box can structurally firmly support the lower substrate.
FIG. 1 is a perspective view showing a solar cell module according to the embodiment;
FIG. 2 is a top view showing the solar cell module according to the embodiment;
FIG. 3 is a sectional view showing the solar cell module according to the embodiment; and
FIG. 4 is a perspective view showing a junction box according to the embodiment.
In the description of the embodiments, it will be understood that when a panel, a bar, a frame, a substrate, a hole, or a film is referred to as being on or under another panel, another bar, another frame, another substrate, another hole, or another film, it can be directly or indirectly on the other panel, the other bar, the other frame, the other substrate, the other groove, or the other film may also be present. Such a position of the layer has been described with reference to the drawings. The size of the elements shown in the drawings may be exaggerated for the purpose of explanation and may not utterly reflect the actual size.
FIG.1 is a perspective view showing a solar cell module according to the embodiment. FIG. 2 is a top view showing the solar cell module according to the embodiment. FIG. 3 is a sectional view showing the solar cell module according to the embodiment. FIG. 4 is a perspective view showing the junction box according to the embodiment.
The solar cell module according to the embodiment includes solar cells 320, a support substrate 310 to support the solar cells 320, a bus bar 400 electrically connected to the solar cells 300, and a junction box 500 connected to the bus bar 400. A portion of the junction box 500 is inserted into a hole of the support substrate 310.
The support substrate 310 may include an insulator. The support substrate 310 may include a plastic substrate, or a metallic substrate. In more detail, the support substrate 310 may include a soda lime glass substrate. The support substrate 310 may be transparent. The support substrate 310 may be rigid or flexible.
The solar cells 320 may be formed on the support substrate 310, and may have a plate shape. For example, the solar cells 320 may have the shape of a rectangular plate. The solar cells 320 receive the solar light and convert the solar light into electrical energy.
Frames 110, 120, 130, and 140 may be formed at the lateral sides of the solar cells 320 to receive the solar cells 320. For example, the frames 110, 120, 130, and 140 are provided at four lateral sides of the solar cells 320. The frame 110, 120, 130, and 140 may include metal such as aluminum (Al).
The solar cells 320 are provided at the upper portion thereof with a protective layer 330 to protect the solar cells 320, and an upper substrate 340 is provided on the protective layer 330. The above parts may be integrated with each other through a lamination process.
The upper substrate 340 and the support substrate 310 protect the solar cells 320 from an external environment. The upper substrate 340 and the support substrate 310 may have a multiple-layer structure including a layer preventing moisture and oxygen from being infiltrated, a layer preventing chemical corrosion, and a layer having an insulating characteristic.
The protective layer 330 is integrally formed with the solar cells 320 through a lamination process in the state that the protective layer 330 is provided on the solar cells 320. In addition, the protective layer 330 protects the solar cells 320 from being corroded due to moisture infiltration, and protects the solar cells 320 from the shock. The protective layer 330 may include ethylene vinyl acetate (EVA). The protective layer 330 may be provided under the solar cells 320.
The upper substrate 340 provided on the protective layer 330 includes tempered glass representing high transmittance and having a superior anti-breakdown function. In this case, the tempered glass may include low iron tempered glass including the low content of iron. The upper substrate 340 has an embossed inner side in order to enhance the scattering of light.
The bus bar 400 is connected to the solar cells 320. For example, the bus bar 400 is provided on the top surface of the outermost solar cells 320. The bus bar 400 may directly make contact with the top surface of the outermost solar cells 320. A bus bar formed at one end portion of the solar cells 320 and a bus bar formed at an opposite end portion of the solar cells 320 may be connected to the solar cells 320 when representing different polarities. For example, if the bus bar formed at the one end of the solar cells 320 is operated with a positive polarity, the bus bar formed at the opposite end of the solar cells 320 is operated with a negative polarity.
The junction box 500 is electrically connected to the solar cells 320. The junction box 500 may be formed at the peripheral portion of the support substrate 310, and connected to the bus bar 400.
To this end, the support substrate 310 is provided at the lateral side thereof with holes 50. The holes 50 may be formed by processing portions of the support substrate 310. Although the holes 50 are formed in the widthwise side of the drawing, the holes 50 may be formed in the lengthwise side of the drawing.
Each solar cell 320 has a width smaller than that of the support substrate 310. Since the hole 50 is formed at the peripheral region of the support substrate 310 without the solar cells 320, the light receiving area can be ensured.
The holes 50 may be formed at the edge portions of the support substrate 310. In more detail, the holes 50 are formed through the support substrate 310 while making contact with the edge portion of the support substrate 310. Therefore, if the holes 50 have a spherical shape, the holes 50 may have a circular sectional shape as shown in FIG. 2. In addition, the holes 50 may have a rectangular shape, but the embodiment is not limited thereto.
As shown in FIG. 2, the sectional shape of the hole 50 may be formed by two semicircles. A plurality of holes 50 are spaced apart from each other.
The junction box 500 may be filled in the hole 50. The junction box 500 may have an area corresponding to that of the hole 50.
In more detail, the bus bar 400 is inserted into the hole 50, and bent so that the bus bar 400 makes contact with the junction box 500. The junction box 500 may include an insertion part 550 inserted into the hole 50 and a support part 560 to support the insertion part 550.
The bus bar 400 may be connected to the junction box 500 through the top surface of the support part 560. That is to say, the bus bar 400 may be connected to the junction box 500 through the top surface of the support part 560 making contact with the bottom surface of the support substrate 310. The bus bar 400 may be bent on the top surface of the solar cells 320 to extend toward the hole 50.
The junction box 500 may include a by-pass diode, and may receive the circuit board connected to the bus bar 400 and a cable 600. The cable 600 is connected to the circuit board, and electrically connected to the solar cells 320 through the junction box 500.
In general, to connect the bus bars operating with positive and negative polarities, which are provided on one surface of the support substrate 310, to the junction box formed on the bottom surface of the support substrate, the holes are formed in the support substrate, and the bus bar is electrically connected to the junction box through the holes. The bonding between the junction box and the bottom surface of the support substrate depends on the contact area between the junction box and the bottom surface of the support substrate. Accordingly, the improvement in the adhesive strength between the junction box and the bottom surface of the support substrate is required.
According to the embodiment, the holes 50 are formed at the edge portion of the support substrate 310, and the bus bar 400 is bent while passing through the hole 50 to make contact with the junction box 500. Since the insertion part 550 of the junction box 500 is filled in the hole 50, the bus bar 400 is not exposed to the outside by the insertion part 500, so that the reliability can be improved.
In addition, the bonding area between the junction box 500 and the support substrate 310 is increased by the insertion part 550, and the junction box 500 can be firmly coupled with the support substrate 310 in the structure thereof, so that the junction box 500 can be prevented from being separated from the support substrate 310 by external pressure.
FIG. 4 is a perspective view showing the junction box according to the embodiment. As shown in FIG. 4, the junction box 500 may include the support part 560 and the insertion part 550.
The insertion part 550 is inserted into the hole 50, and the support part 560 is formed on the bottom surface of the support substrate 310 to the insertion part 550. The support part 560 may have a sectional area wider than that of the insertion part 550.
Any reference in this specification to one embodiment, an embodiment, example embodiment, etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effects such feature, structure, or characteristic in connection with other ones of the embodiments.
Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.

Claims (15)

  1. A solar cell module comprising:
    a support substrate including at least one hole formed at a peripheral region thereof;
    solar cells at an upper portion of the support substrate;
    a bus bar electrically connected to the solar cells; and
    a junction box connected to the bus bar,
    wherein the junction box includes an insertion part having a portion inserted into the hole.
  2. The solar cell module of claim 1, wherein the bus bar extends toward the hole.
  3. The solar cell module of claim 1, wherein the hole has a semicircular sectional shape or a rectangular sectional shape.
  4. The solar cell module of claim 1, wherein the junction box includes a support part supporting the insertion part.
  5. The solar cell module of claim 4, wherein the support part is formed at a lower portion of the support substrate.
  6. The solar cell module of claim 1, wherein a lateral side of the support substrate is aligned in line with a lateral side of the insertion part.
  7. The solar cell module of claim 1, wherein the insertion part has a shape corresponding to a shape of the insertion part.
  8. The solar cell module of claim 4, wherein the bus bar makes contact with the junction box on a top surface of the support part.
  9. A solar cell module comprising:
    a support substrate including at least one hole formed in a peripheral region thereof;
    solar cells at an upper portion of the support substrate; and
    a bus bar electrically connected to the solar cells,
    wherein the holes are spaced apart from each other.
  10. The solar cell module of claim 9, further comprising a junction box including an insertion part filled in each hole and a support part on a lower portion of the insertion part.
  11. The solar cell module of claim 9, wherein the bus bar extends toward the holes.
  12. The solar cell module of claim 9, wherein each hole has a semicircular sectional shape or a rectangular sectional shape.
  13. The solar cell module of claim 10, wherein the support part is formed at a lower portion of the support substrate.
  14. The solar cell module of claim 13, wherein a lateral side of the support substrate is aligned in line with a lateral side of the insertion part.
  15. The solar cell module of claim 14, wherein the insertion part has a shape corresponding to a shape of the hole.
PCT/KR2012/010122 2011-11-29 2012-11-27 Solar cell module and method of fabricating the same WO2013081356A1 (en)

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KR1020110126241A KR101327014B1 (en) 2011-11-29 2011-11-29 Solar cell module and method of fabricating the same
KR10-2011-0126241 2011-11-29

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Cited By (3)

* Cited by examiner, † Cited by third party
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CN103646975A (en) * 2013-11-06 2014-03-19 江西弘宇太阳能热水器有限公司 Photovoltaic assembly
WO2015096489A1 (en) * 2013-12-27 2015-07-02 深圳市比亚迪汽车研发有限公司 Dual-glass photovoltaic module
JP2017501584A (en) * 2013-12-27 2017-01-12 ビーワイディー カンパニー リミテッドＢｙｄ Ｃｏｍｐａｎｙ Ｌｉｍｉｔｅｄ Dual glass photovoltaic module

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CN103646975A (en) * 2013-11-06 2014-03-19 江西弘宇太阳能热水器有限公司 Photovoltaic assembly
WO2015096489A1 (en) * 2013-12-27 2015-07-02 深圳市比亚迪汽车研发有限公司 Dual-glass photovoltaic module
JP2017501584A (en) * 2013-12-27 2017-01-12 ビーワイディー カンパニー リミテッドＢｙｄ Ｃｏｍｐａｎｙ Ｌｉｍｉｔｅｄ Dual glass photovoltaic module
JP2017504296A (en) * 2013-12-27 2017-02-02 ビーワイディー カンパニー リミテッドＢｙｄ Ｃｏｍｐａｎｙ Ｌｉｍｉｔｅｄ Dual glass photovoltaic module
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