CN102208469B - Solar cell module - Google Patents

Solar cell module Download PDF

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Publication number
CN102208469B
CN102208469B CN201110152906.1A CN201110152906A CN102208469B CN 102208469 B CN102208469 B CN 102208469B CN 201110152906 A CN201110152906 A CN 201110152906A CN 102208469 B CN102208469 B CN 102208469B
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CN
China
Prior art keywords
solar battery
thickness
panel
protection parts
mentioned
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Expired - Fee Related
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CN201110152906.1A
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Chinese (zh)
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CN102208469A (en
Inventor
越前谷大介
坂本博夫
宇都宫敬一郎
青木普道
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to CN201110152906.1A priority Critical patent/CN102208469B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/20—Peripheral frames for modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S2080/09—Arrangements for reinforcement of solar collector elements
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention provides a solar cell module, which is provided with a solar cell panel, a unit protection part, a surface protection part, a back panel and an outer frame, wherein the solar cell panel consists of a plurality of solar cell units which have a plate shape and are arranged on the same plane; the unit protection part has a plate shape in a form of covering the plurality of solar cell units which are arranged on the same plane; the surface protection part is adhered to the surface of the unit protection part; the back panel is adhered to the back surface of the unit protection part; the outer frame keeps the periphery of the solar cell panel; and the thickness of the back panel is determined to accord with the condition that the unit is close to an inclined neutral axis in the thickness direction of the panel under the condition that the solar cell panel is bent and deformed due to external force applied to the panel.

Description

Solar module
The application to be the applying date of same applicant be on April 24th, 2007, application number is 200780052703.7 (PCT/JP2007/058852), denomination of invention is the Chinese invention patent application of " solar module " divisional application.
Technical field
The present invention relates to solar module, the supporting construction of the solar battery panel particularly possessed in solar module.
Background technology
In solar module in the past; be formed as tabular and configuration multiple solar battery cells at grade are such as covered by the resinous cell protection parts with flexibility that EVA (ethylene-vinyl acetate copolymer) is such; be bonded with the surface protection parts such as tempered glass on the surface of cell protection parts, and guarantee the structural strength as building component.
As compared with above-mentioned solar module in the past, further increase the solar module of intensity, have solar battery panel, the thermal insulation barriers being configured in its back side and the metallic plate that is configured in its back side across the stacked and solar module of integration (such as with reference to patent documentation 1) of adhesive linkage.
Patent documentation 1: Japanese Unexamined Patent Publication 09-119202 publication (the 4th page, Fig. 1)
But in above-mentioned arbitrary solar module in the past, all there are the following problems: the generating efficiency reduction compared with the generating efficiency before arranging being arranged on the solar module behind the first-class outdoor, roof in house.
Summary of the invention
The present invention completes in view of the above problems, its object is to provide a kind of can not reduce disposed in the outdoor after the solar module of high reliability of generating efficiency.
In order to solve above-mentioned problem, and reach object, the invention provides a kind of solar module, it is characterized in that, possess: solar battery panel, be configured to possess and be formed as tabular and configuration multiple solar battery cells at grade, the cell protection parts being formed as tabular with the form covering the above-mentioned multiple solar battery cells be configured on the same face and the surface protection parts be bonded on the surface of these cell protection parts; Outside framework, keeps the peripheral part of above-mentioned solar battery panel; And beam, two ends combine respectively with two opposed positions of above-mentioned outside framework and support the central portion of the rear side of above-mentioned solar battery panel, wherein, above-mentioned beam is given and has initial tension.
In addition, the invention provides a kind of solar module, it is characterized in that, possess: solar battery panel, be configured to possess be formed as tabular and configuration multiple solar battery cells at grade, be formed as with the form covering the above-mentioned multiple solar battery cells be configured on the same face tabular cell protection parts, be bonded in the surface protection parts on the surface of these cell protection parts and be bonded in the backplate at the back side of said units guard block; And outside framework, keep the peripheral part of above-mentioned solar battery panel, the spring rate of above-mentioned surface protection parts is set to E 1, thickness is set to t 1, the spring rate of above-mentioned backplate is set to E 2, the thickness of said units guard block is set to t 3, by the thickness t of above-mentioned backplate 2be set to the thickness t calculated according to formula (1) athe thickness t calculated above and according to formula (2) bbelow,
Formula (1)
t A = E 1 E 2 t 1 2 + t 3 2 - t 3 - - - ( 1 )
Formula (2)
t B = E 1 E 2 t 1 ( t 1 + 2 t 3 ) - - - ( 2 )
According to the present invention, even if play the such effect of the solar module that obtains the high reliability that generating efficiency also can not reduce after being arranged at outdoor.
Accompanying drawing explanation
Fig. 1 is the sectional arrangement drawing of the execution mode 1 that solar module of the present invention is shown.
Fig. 2 is the bottom view of the solar module of execution mode 1.
Fig. 3 is the vertical view of the solar battery panel possessed in the solar module of execution mode 1.
Fig. 4 is the fragmentary bottom views of the outside framework of the solar module that execution mode 1 is shown and the joint portion of beam.
Fig. 5 is the oblique view of the brace table of the solar module that execution mode 1 is shown.
Fig. 6 is the partial longitudinal section figure of the solar battery panel possessed in the solar module of execution mode 1.
Fig. 7 is the sectional arrangement drawing of the execution mode 2 and 3 that solar module of the present invention is shown.
Fig. 8 is the partial longitudinal section figure of the solar battery panel possessed in the solar module of execution mode 2.
Fig. 9 is the figure of the state that the deformation occurred in solar battery panel is in the past shown.
Figure 10 is the partial longitudinal section figure of the solar battery panel possessed in the solar module of embodiments of the present invention 3.
(label declaration)
1,21,31 solar battery panels
2 solar battery cells
3 surface protection parts
4 cell protection parts
5,25,35 solar modules
6 beams
6a screw
6b end face
7 outside frameworks
7a bight
The oblique part of 7b
7c inner side end
7e groove
8 brace tables
8a back-up block
8b crossed grooves
8c supporting bracket
9 primary clearances
10 nuts
The central portion of 12 solar battery panels
14 backplates (sandwich panel)
The occurrence and distribution of 15 distortion
16 neutral axises
18 outer dermatotomes
19 chipwares
Embodiment
Below, with reference to the accompanying drawings, the execution mode of solar module of the present invention is described in detail.In addition, the invention is not restricted to this execution mode.
Execution mode 1
Fig. 1 is the sectional arrangement drawing of the execution mode 1 that solar module of the present invention is shown, Fig. 2 is the bottom view of the solar module of execution mode 1, Fig. 3 is the vertical view of the solar battery panel possessed in the solar module of execution mode 1, Fig. 4 is the fragmentary bottom views of the outside framework of the solar module that execution mode 1 is shown and the joint portion of beam, Fig. 5 is the oblique view of the brace table of the solar module that execution mode 1 is shown, Fig. 6 is the partial longitudinal section figure of the solar battery panel possessed in the solar module of execution mode 1.
As shown in Fig. 1 ~ Fig. 5, the solar module 5 of execution mode 1 possesses: the solar battery panel 1 being configured with the rectangular plate-like of the solar battery cell 2 of multiple (in execution mode 1 12) rectangular plate-like spaced apart on the same face; The peripheral part of solar battery panel 1 is inserted into the rectangular box-like outside framework 7 of the aluminum alloy kept in groove 7e; And be configured in solar battery panel 1 rear side outside framework 7 two diagonal on, the beam 6,6 of two the high-tension steels linked with the oblique part 7b of the bight 7a of outside framework 7.
Two beams 6,6 intersect at the central portion 12 of outside framework 7 and solar battery panel 1.In the cross part of beam 6,6, be provided with the brace table 8 of aluminum alloy, by the supporting bracket 8c of the rectangle of brace table 8, the central portion 12 of the rear side of support solar battery panel 1.
As shown in Figure 6; solar battery cell 2 (only illustrate one in figure 6, but spaced apart on the same face be configured with 12 solar battery cells 2) is such as covered by the resinous cell protection parts 4 with flexibility that EVA (ethylene-vinyl acetate copolymer) is such.On the surface of cell protection parts 4 being formed as tabular with the form covering 12 solar battery cells 2, bonding surface protection parts 3.
Surface protection parts 3 are tempered glasses of thickness 2 ~ 4mm.Solar battery cell 2 is made by the crystalline silicon of thickness 0.1 ~ 0.4mm.In addition, cell protection parts 4 comprise solar battery cell 2 and become the thickness of 0.3 ~ 1mm.
In solar module in the past, due to apply during conveying bend loading, arranges to the roof in house engineering is set time people stand in solar battery panel applies bend loading and be subject to after arranging by force wind-induced press, and larger external force (bend loading) is applied to solar battery panel, thus solar battery panel distortion, and sometimes in the solar battery cell 2 of inner sealing, there is crackle.In addition, when solar battery panel receive as described above exceed the external force of feasible value, the crackle occurred in solar battery cell 2 becomes reason, and decrease of power generation.
In the solar module 5 of execution mode 1, there is crackle to prevent solar battery panel 1 to be out of shape, being carried out the central portion of the rear side of support solar battery panel 1 by beam 6,6 and brace table 8.
Be configured on two diagonal of the outside framework 7 of the peripheral part keeping solar battery panel 1, and two beams 6,6 that two ends and oblique part 7b, 7b of bight 7a, 7a of two opposed positions of outside framework 7 combine respectively intersect at the central portion 12 of outside framework 7.By being arranged on the supporting bracket 8c of the rectangle of the brace table 8 of the aluminum alloy in cross part, the central portion of the rear side of support solar battery panel 1.
Even if be applied with bend loading to solar battery panel 1, due to the central portion of the rear side by beam 6,6 support solar battery panel 1, so the flexural deformation of solar battery panel 1 is also suppressed.Even if load when being applied with conveying to solar module 5, load when arranging and the wind-induced load after arranging, also crack hardly in solar battery cell 2.
Therefore, the decrease of power generation after can preventing solar module 5 from arranging, can improve reliability.In addition, because beam 6,6 is bar-shaped, so do not cover the back side of solar battery panel 1 and improve the rigidity of solar battery panel 1, maintain the thermal diffusivity at the back side from solar battery panel 1.Therefore, the temperature that can not produce solar battery cell 2 rises, and the phenomenon of decrease of power generation.
As shown in Figure 4, at the both ends of bar-shaped beam 6, screw 6a is formed with.At the bight 7a of outside framework 7, be fixed with oblique part 7b.Screw 6a is inserted through in the hole of oblique part 7b, and the two ends of beam 6 are combined respectively by bight 7a, 7a of two opposed positions of the nut 10,10 with outside framework 7 that have been screwed into screw 6a.
Between the end face 6b not forming the part of screw 6a and the inner side end 7c of oblique part 7b of beam 6, be provided with primary clearance 9.By fastening nut 10,10, initial tension T can be given to beam 6.If impart initial tension T to beam 6, then when solar battery panel 1 flexural deformation, except the recuperability for common deflection of beam, also have the length of beam 6 is set to L, the recuperability F that represented by the formula of F=2Tx/L when flexural deformation displacement being set to x worked.
Impart the beam 6 of initial tension T compared with the beam 6 not giving initial tension T, recuperability becomes large, can improve the diastrophic rigidity of beam 6,6 for solar battery panel 1.In addition, compared with not giving the situation of initial tension, beam 6,6 more miniaturized can also be made, the quality of beam 6,6 can also be alleviated.
In addition, can also two segmentations be carried out to beam 6 and connect with degree of tightness screw buckle (turnbuckle), and give initial tension T by degree of tightness screw buckle to beam 6.Beam 6 not only links with keeping the outside framework 7 of solar battery panel 1, but also can be used as the mount structure thing (not shown) outside framework 7 being arranged on setting place.
As shown in Figure 5, the brace table 8 being arranged on the cross part of beam 6,6 comprises: be provided with the back-up block 8a with the beam 6 intersected, 6 chimeric crossed grooves 8b; And be fixed on the face of solar battery panel 1 side of back-up block 8a, the supporting bracket 8c that the form being positioned at the peripheral part of two solar battery cells 2,2 being configured at central portion with its peripheral part is formed.
When defining supporting bracket 8c as mentioned above, as shown in Fig. 2 and Fig. 5, the concentrated load occurred at the peripheral part of supporting bracket 8c can not act on solar battery cell 2, and acts on the gap between solar battery cell 2,2, so can prevent breaking of solar battery cell 2.In execution mode 1, the peripheral part of supporting bracket 8c is made to be positioned at the peripheral part of two solar battery cells 2,2, if but make the peripheral part of supporting bracket 8c be positioned at gap between solar battery cell 2,2, the size of supporting bracket 8c both can be the size of of solar battery cell 2, also can be multiple sizes.
In addition, in execution mode 1, surface protection parts 3 are set to tempered glass, as long as but surface protection parts 3 parts that light is passed through, also can be set to transparent resin.In addition, the diagonal of solar battery panel 1 is configured with two beams 6, but is not limited thereto, configure with the form of the central portion across solar battery panel 1.
Execution mode 2
Fig. 7 is the sectional arrangement drawing of the execution mode 2 and 3 that solar module of the present invention is shown, Fig. 8 is the partial longitudinal section figure of the solar battery panel possessed in the solar module of execution mode 2.
As shown in Figure 7 and Figure 8, the solar module 25 of execution mode 2 possesses: the solar battery panel 21 being configured with the rectangular plate-like of multiple solar battery cell 2; And make the peripheral part of solar battery panel 21 be inserted into the rectangular box-like outside framework 7 of the aluminum alloy kept in groove 7e.
In addition; as shown in Figure 8; in solar battery panel 21; solar battery cell 2 (only illustrates one in fig. 8; but spaced apartly on the same face be configured with multiple solar battery cell 2) covered by the resinous cell protection parts 4 with flexibility as EVA; on the surface of the cell protection parts 4 of tabular, the bonding surface protection parts 3 of tabular tempered glass.And then, at the back side of the cell protection parts 4 of solar battery panel 21, bonding backplate 14.
In solar module in the past, the damage curvature of solar battery cell monomer is much larger than the tempered glass as surface protection parts, and solar battery cell and surface protection adhering components, so do not produce until the distortion of damage curvature.However, during the load of the load when receiving conveying, load when arranging or wind, the reason that crackle occurs in solar battery cell is as described below.
Fig. 9 be illustrate be subject to load when carrying at solar battery panel in the past, the load of load when arranging or wind and flexural deformation time the figure of the state of deformation that occurs in solar battery panel.Dotted line 15 in Fig. 9 represents the distribution of the size of compressive deformation from the neutral axis 16 of solar battery panel to top layer and tensile deformation.
As shown in Figure 9, if when solar battery panel is in the past owing to carrying, the time of setting or the wind after arranging and be subject to larger face pressure from the top of Fig. 9 downwards, then bend downwards.The panel of the solar battery panel surface protection parts 3 that have been bonding and cell protection parts 4, but not easily slide in adhesive linkage 4a, so flexural deformation in the same manner as the parts of one.
For the deformation of solar battery panel, when the deformation of neutral axis 16 is set to 0, along with from neutral axis 16 upward or away from below, and linearly increase.Above neutral axis 16, as shown in the dotted arrow of Fig. 9, there is compressive deformation, in below as shown in solid arrow, tensile deformation occurs.
In solar battery panel in the past; surface protection parts 3 due to the tempered glass to thickness 2 ~ 4mm engage the solar battery cell 2 of the crystalline silicon of thickness 0.1 ~ 0.4mm; so in the solar battery cell 2 configured leaving from neutral axis 16, there is larger tensile deformation downwards., although the damage curvature not reaching solar battery cell 2 monomer, also in solar battery cell 2, there is crackle in its result.
As shown in Figure 8; the solar battery panel 21 of execution mode 2 is bonding at the back side of cell protection parts 4 to be had the backplate 14 of specific thickness and makes solar battery cell 2 near neutral axis; reduce the tensile deformation occurred in solar battery cell 2, suppress crackle occurs.
Therefore, though solar module 25 due to conveying, arrange and arrange after blast and be subject to load, also can reduce solar battery cell 2 there is crackle, the decrease of power generation after can preventing solar module 25 from arranging.
Particularly when making neutral axis 16 (not shown in fig. 8) be positioned at the scope of the thickness of cell protection parts 4; the deformation occurred in solar battery cell 2 diminishes; even if so be applied with larger bending loading to solar battery panel 21, the breakage caused due to the crackle of solar battery cell 2 also can be prevented.
In order to the scope making neutral axis 16 be positioned at the thickness of cell protection parts 4, the spring rate of surface protection parts 3 can be set to E 1, thickness of slab is set to t 1, the spring rate of backplate 14 is set to E 2, thickness of slab is set to t 2, the thickness of the cell protection parts 4 of the surrounding of solar battery cell 2 is set to t 3, use according to, calendar year 2001 capable from the formula (Machine tool science め mechanics of materials, Raising Yin Tang development of position of the neutral axis representing combination beam, 179 Page) and the thickness t that calculates of the formula (1) that derives awith the thickness t calculated according to formula (2) b, by the thickness t of backplate 14 2be set to t aabove and t b(t below a≤ t 2≤ t b).
Formula (1)
t A = E 1 E 2 t 1 2 + t 3 2 - t 3 - - - ( 1 )
Formula (2)
t B = E 1 E 2 t 1 ( t 1 + 2 t 3 ) - - - ( 2 )
As mentioned above, the solar module 25 of execution mode 2 is bonded with backplate 14 at the back side of the cell protection parts 4 of solar battery panel 21, the thickness t of backplate 14 2according to the spring rate E based on surface protection parts 3 1, thickness t 1, backplate 14 spring rate E 2, cell protection parts 4 thickness t 3the thickness t that calculates of formula (1) aabove and be the thickness t calculated according to formula (2) bbelow, so significantly reduce the generation of the crackle of solar battery cell 2, the decrease of power generation after can preventing solar module 25 from arranging, can improve reliability.
In addition; owing to allowing until the flexural deformation of the damage curvature of solar battery cell 2 monomer; and the rigidity of surface protection parts 3 can be reduced compared with not possessing the situation of backplate 14, so the thickness of surface protection parts 3 can be reduced, the quality of solar battery panel 21 can be reduced.
In addition, if as backplate 14, the metal that the pyroconductivity such as using steel such is high is then many from the heat radiation quantitative change at the back side of solar battery panel 21, the temperature of solar battery cell 2 can be suppressed to rise, the generating efficiency of solar module 25 can be improved.
Execution mode 3
Figure 10 is the partial longitudinal section figure of the solar battery panel possessed in the solar module of embodiments of the present invention 3.
As shown in Figure 10; in the solar battery panel 31 of execution mode 3; solar battery cell 2 is covered by the cell protection parts 4 with flexibility; be bonded with surface protection parts 3 from the teeth outwards, be bonded with the sandwich panel (sandwich-structured panel) 14 clipping the two sides of the chipware 19 of tabular with outer dermatotome 18 on the back side as backplate 14.In addition, the structure of the solar module 35 of execution mode 3 is identical with the solar module 25 shown in Fig. 7.
With the sandwich panel 14 that cellular board (honeycomb panel) is representative, there is very large flexural rigidity, and be bonded in as backplate 14 on the back side of solar battery panel 31, thus the breakage that causes due to the flexural deformation of solar battery cell 2 can be prevented.
Particularly when neutral axis 16 (not shown in Fig. 10) is positioned at the scope of the thickness of cell protection parts 4; the tensile deformation occurred in solar battery cell 2 diminishes; for the larger flexural deformation of solar battery panel 31; also can prevent the breakage of solar battery cell 2, the reliability of solar module 35 (with reference to Fig. 7) can be improved.
When using sandwich panel 14; in order to the scope making neutral axis 16 be positioned at the thickness of cell protection parts 4; because sandwich panel 14 is composite materials, so the formula (1) and formula (2) that assume that homogenous material cannot be used as former state.
When shown in Figure 10 employ three layers sandwich panel 14, in order to the scope making neutral axis 16 be positioned at the thickness of cell protection parts 4, the thickness of outer dermatotome 18 is set to t 2a, spring rate is set to E 2a, the thickness of chipware 19 is set to t 2b, by the thickness t of sandwich panel 14 2be set to the value calculated according to formula (3), by spring rate E 2be set to the value calculated according to formula (4), by the thickness t of the sandwich panel 14 that through type (3) calculates 2be set to the thickness t calculated according to formula (1) athe thickness t calculated above and according to formula (2) b(t below a≤ t 2≤ t b).
Formula (3)
t 2＝2t 2a+t 2b(3)
Formula (4)
E 2 = E 2 a 2 t 2 a 2 t 2 a + t 2 b - - - ( 4 )
As mentioned above; in the solar module 35 of execution mode 3; as the backplate 14 be bonded on the back side of cell protection parts 4, use the sandwich panel clipping the two sides of chipware 19 with outer dermatotome 18, through type (3) calculates the thickness t of sandwich panel 14 2, through type (4) calculates spring rate E 2, by the thickness t of sandwich panel 14 2be set to the thickness t calculated according to formula (1) athe thickness t calculated above and according to formula (2) bbelow, so significantly reduce the generation of the crackle of solar battery cell 2, the decrease of power generation after can preventing solar module 35 from arranging, can improve reliability.
In addition, in execution mode 3, due to sandwich panel is used as backplate 14, so can also reduce the quality of solar module 35.And then if the metal beehives such as aluminium are used as chipware 19, then, compared with using the situation of thermal insulation barriers, heat conductivity is good, the temperature of solar battery cell 2 can be suppressed to rise, can improve the generating efficiency of solar module 35.
In addition, if the metals such as aluminium are used as outer dermatotome 18, then heat conductivity is good, the temperature of solar battery cell 2 can be suppressed to rise, can improve the generating efficiency of solar module 35.In addition, also can by FRP (Fiber Reinforced Plastics, fibre reinforced plastics) as outer dermatotome 18.Compared with using the situation of the metals such as aluminium, the quality of solar battery panel 31 can be alleviated.
Utilizability in industry
As mentioned above, solar module of the present invention as conveying time, the time of setting and high wind time the strong solar module of the patience of load be useful.

Claims (2)

1. a solar module, is characterized in that, possesses:
Solar battery panel, be configured to possess be formed as tabular and configuration multiple solar battery cells at grade, be formed as with the form covering the above-mentioned multiple solar battery cells be configured on the same face tabular cell protection parts, be bonded in the surface protection parts on the surface of these cell protection parts and be bonded in the backplate at the back side of said units guard block; And
Outside framework, keeps the peripheral part of above-mentioned solar battery panel,
Wherein, the thickness of described backplate is confirmed as, and makes the neutral axis of the thickness direction of described panel be positioned at the scope of the thickness of cell protection parts,
Described backplate is metal;
The spring rate of above-mentioned surface protection parts is set to E 1, thickness is set to t 1, the spring rate of above-mentioned backplate is set to E 2, the thickness of said units guard block is set to t 3,
By the thickness t of above-mentioned backplate 2be set to the thickness t calculated according to formula (1) athe thickness t calculated above and according to formula (2) bbelow,
Formula (1)
t A = E 1 E 2 t 1 2 + t 3 2 - t 3 - - - ( 1 )
Formula (2)
t B = E 1 E 2 t 1 ( t 1 + 2 t 3 ) - - - ( 2 ) .
2. a solar module, is characterized in that, possesses:
Solar battery panel, be configured to possess be formed as tabular and configuration multiple solar battery cells at grade, be formed as with the form covering the above-mentioned multiple solar battery cells be configured on the same face tabular cell protection parts, be bonded in the surface protection parts on the surface of these cell protection parts and be bonded in the backplate at the back side of said units guard block; And
Outside framework, keeps the peripheral part of above-mentioned solar battery panel,
Wherein, the thickness of described backplate is confirmed as, and makes the neutral axis of the thickness direction of described panel be positioned at the scope of the thickness of cell protection parts,
Above-mentioned backplate is set to the sandwich panel the two sides of chipware with two crust plate holders,
The spring rate of above-mentioned outer dermatotome is set to E 2a, thickness is set to t 2a, the spring rate of above-mentioned chipware is set to E 2b, thickness is set to t 2b,
By the thickness t of above-mentioned sandwich panel 2be set to the value calculated according to formula (3), by the spring rate E of above-mentioned sandwich panel 2be set to the value calculated according to formula (4),
Formula (3)
t 2＝2t 2a+t 2b(3)
Formula (4)
E 2 = E 2 a 2 t 2 a 2 t 2 a + t 2 b - - - ( 4 ) .
CN201110152906.1A 2007-04-24 2007-04-24 Solar cell module Expired - Fee Related CN102208469B (en)

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CN2007800527037A Division CN101663763B (en) 2007-04-24 2007-04-24 Solar battery module

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