WO2023104098A1 - 型材压件、型材、光伏组件边框、光伏系统及其组装方法 - Google Patents

型材压件、型材、光伏组件边框、光伏系统及其组装方法 Download PDF

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Publication number
WO2023104098A1
WO2023104098A1 PCT/CN2022/137252 CN2022137252W WO2023104098A1 WO 2023104098 A1 WO2023104098 A1 WO 2023104098A1 CN 2022137252 W CN2022137252 W CN 2022137252W WO 2023104098 A1 WO2023104098 A1 WO 2023104098A1
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WO
WIPO (PCT)
Prior art keywords
profile
protrusion
groove
side groove
pressing piece
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2022/137252
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English (en)
French (fr)
Chinese (zh)
Inventor
蒋阿华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trina Solar Co Ltd
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Trina Solar 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 Trina Solar Co Ltd filed Critical Trina Solar Co Ltd
Priority to AU2022406606A priority Critical patent/AU2022406606A1/en
Priority to EP22903519.1A priority patent/EP4447315A4/en
Priority to US18/712,530 priority patent/US20250015752A1/en
Priority to JP2024534092A priority patent/JP2025500032A/ja
Publication of WO2023104098A1 publication Critical patent/WO2023104098A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H02S20/00—Supporting structures for PV 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
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • 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
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/63—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing modules or their peripheral frames to supporting elements
    • F24S25/632—Side connectors; Base connectors
    • 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
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/63—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing modules or their peripheral frames to supporting elements
    • F24S25/634—Clamps; Clips
    • F24S25/636—Clamps; Clips clamping by screw-threaded elements
    • 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
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/65—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for coupling adjacent supporting elements, e.g. for connecting profiles together
    • 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
    • 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

  • Profiles are objects with certain geometric shapes made of materials with certain strength and toughness through rolling, extrusion, casting and other processes. Due to the limitation of the manufacturing process, the cross-sectional shape of a profile is generally fixed, and its shape and thickness are uniform in each cross-section in the length direction.
  • profiles generally according to the actual installation requirements, select profiles that match in terms of shape, material, and mechanical properties.
  • different positions of the profile are subjected to different external forces, which leads to deformation or even tearing at some positions of the profile.
  • the overall The enhanced design such as the overall thickening of the profile, has caused a waste of resources to a certain extent.
  • Profiles can be used to form various frames, installed on the outer periphery of workpieces, and play a role in supporting, fixing and protecting corresponding workpieces.
  • the solar photovoltaic module is to fix the laminate including the solar cell through the frame of the photovoltaic module.
  • the function of the module frame is to enhance the mechanical strength of the module, seal the edge of the laminate and fix the laminate on the support to form a solar photovoltaic module, referred to as a photovoltaic module or module. Therefore, the strength of the frame of the module determines the overall strength of the photovoltaic module.
  • the main part of the frame of the existing photovoltaic module is generally made of an aluminum alloy profile, which is integrally formed by extrusion. Due to the aforementioned reasons, the same type of frame profile has a uniform cross-sectional shape and thickness dimension, and the long side and short side of the component frame may be different, but the long side and the long side, and the short side and the short side are unified. In most cases, the long side and the short side are also unified. This results in that when designing the strength of the frame of the component, it is necessary to design according to the point of maximum force, so that the frame as a whole meets the strength requirements of the point of maximum force, resulting in redundant strength of other parts of the frame, and ultimately resulting in waste of cost.
  • Fig. 1 shows a cross-sectional view of a profile
  • Fig. 2 and Fig. 3 show schematic views of the profile being used for assembling photovoltaic modules.
  • the profile 11 has an A surface, a B1 surface, a B2 surface, a C surface and a D surface.
  • a notch 12 for carrying the photovoltaic module 20 is formed between the A surface and the D surface, and a cavity 13 is formed between the B1 surface, the B2 surface, the C surface and the D surface; the C surface at the bottom of the cavity 13 is the C1 surface,
  • the C1 surface extends inwardly to form a C2 surface, and the C surface is a contact surface that contacts the photovoltaic support 30 when the photovoltaic module 20 is installed.
  • screw holes 14 on the C2 surface which can be used to install the photovoltaic module 20 on the support 30 with fasteners (not shown in the figure), and more often, through the pressure block 40 on the A surface and the B1 surface and fasteners to install the photovoltaic module 20 on the support 30 .
  • the B1, B2 and C2 surfaces constitute the main part of the profile raw material cost.
  • Fig. 3 shows a schematic diagram of a photovoltaic module installed on a purlin of a photovoltaic support.
  • the photovoltaic module 20 when the photovoltaic module 20 is installed, the long-side profiles 11 of the module frame 10 and the purlins 31 of the bracket 30 are vertically installed.
  • the width of the purlins 31 is generally 40-60 mm, and the positions of the two purlins 31 are generally in the area of 1/8 to 1/4 of the long side of the module.
  • the stress of the module frame is the largest in this area (that is, the position where the module frame contacts the purlin and its vicinity), but the stress in other parts of the module frame is relatively small.
  • the mechanical properties of the frame are designed with reference to the part with the greatest stress, so that a corresponding load redundancy is formed in the part with less stress.
  • the installation position is generally located on the inner extension surface (ie, the C2 surface) of the bottom of the frame. Due to the need to reduce the cost of photovoltaic modules in recent years, the wall thickness and width of the C2 surface have been reduced as much as possible, which leads to a decrease in the strength of the module mounting surface, and often causes bolt holes to be deformed or pulled through to fail. This technical problem can be solved by increasing the thickness of the bottom of the frame or widening the bottom of the frame. However, under the existing module frame structure, it is necessary to uniformly strengthen all length directions of the long side or at least widen the C2 surface, which will lead to a significant increase in cost and bring a large economic burden.
  • the technical problem to be solved by the present invention is to provide a profile pressing piece capable of enhancing profile strength, lower cost, and easy to install, a corresponding profile, a frame of a photovoltaic module, a photovoltaic system and an assembly method thereof.
  • the present invention provides a profile pressing piece for combining and fixing profiles, the side of the profile has side grooves, and it is characterized in that one side of the profile pressing piece has a first joint portion for Combined with the side groove of a profile, the opposite side of the profile pressing piece has a second joint portion for combining with the side groove of another profile, and the profile pressing piece has a through fastening hole.
  • the upper end of the slot of the side groove has a first protrusion
  • the first joint part and the second joint part respectively include a first side and a second side respectively connected to two ends of the first side.
  • Two sides and a third side wherein the connection between the first side and the second side has a first protrusion, and the first protrusion is suitable for snapping into the profile when the profile pressing piece is combined with the profile Top face of the side slot.
  • the lower end of the side groove has a second protrusion
  • the connection between the first side and the third side has a second protrusion.
  • the second protrusion snaps into the bottom surface of the side groove.
  • the first protrusion goes over the first protruding line and snaps into the top surface of the side groove
  • the second protrusion goes over the second protruding bar and snaps into the top surface of the side groove.
  • the second side has a third protrusion spaced opposite to the first protrusion, and a first groove is formed between the first protrusion and the third protrusion so as to be compatible with the first protrusion. Match the first rib described above.
  • the third side has a fourth protrusion spaced opposite to the second protrusion, and a second groove is formed between the second protrusion and the fourth protrusion to be compatible with the second protrusion.
  • the second protruding strip fits together.
  • the height of the second protruding end surface of the second joint part relative to the bottom surface of the profile pressing part is higher than that of the second protruding end surface of the first joint part relative to the profile The height of the bottom surface of the press.
  • the second side has a third protrusion spaced opposite to the first protrusion, and a first groove is formed between the first protrusion and the third protrusion to be compatible with the first protrusion.
  • the first protrusion fits.
  • the third side forms a second groove between the first joint part and the second protrusion, and the third side has a groove at the second joint part.
  • a fourth protrusion is spaced opposite to the second protrusion, and a third groove is formed between the second protrusion and the fourth protrusion of the second joint part to cooperate with the second protrusion .
  • the profile pressing piece further includes an elastic strip provided in the third groove of the second combining part, when the profile pressing piece is combined with another profile, the second combination
  • the elastic strip of the upper part is in contact with the second convex strip.
  • the lower end of the notch of the side groove is flat, wherein the connection between the first side and the third side is flat, and the joint between the profile pressing piece and the profile When it fits with the bottom surface of the side groove.
  • the second side has a third protrusion spaced opposite to the first protrusion, and a first groove is formed between the first protrusion and the third protrusion to be compatible with the first protrusion.
  • the first protrusion fits.
  • the third side has a fourth protrusion adjacent to the connection, and when the profile pressing piece is combined with the profile, the end surface of the fourth protrusion and the profile The bottom surface is even.
  • the bottom surface of the first groove is inclined upward from the outside to the inside, and the angle of inclination relative to the bottom surface of the profile pressing part is greater than or equal to that of the end surface of the first protruding strip relative to The angle of inclination of the bottom surface of the profile.
  • the outer surface of the third protrusion is inclined inwardly from bottom to top, and the angle of inclination relative to the first side is greater than or equal to that of the first convex strip.
  • the inclination angle of the bottom surface of the first groove relative to the bottom surface of the profile pressing part is between 10° and 20°.
  • the inclination angle of the outer surface of the third protrusion relative to the first side is between 10° and 20°.
  • the vertical distance between the first protruding end surface and the second protruding end surface is smaller than the sum of the notch width of the side groove and the height of the first protruding strip.
  • the vertical distance between the second protruding end surface and the bottom surface of the profile pressing part is less than or equal to the vertical distance between the bottom surface of the side groove and the bottom surface of the profile.
  • the vertical distance between the second protruding end surface of the second joint part and the bottom surface of the profile pressing part is greater than or equal to the distance between the notch end surface of the side groove and the bottom surface of the profile vertical distance.
  • the distance between the outer end point of the first groove and the end surface of the second protrusion is less than or equal to the width of the side groove.
  • the vertical distance between the floating outer end point of the first groove of the second joint part and the second convex end surface of the second joint part is less than or equal to the notch of the side groove Width, wherein the suspended outer end point of the first groove of the second joint part is higher than the outer end point.
  • the height difference between the floating outer end point and the outer end point of the first groove of the second combining portion is equal to the height of the second convex strip.
  • the gap between the first side and the side of the side groove is less than or equal to 2 mm.
  • the present invention also provides a profile, including an outer frame and a bearing part, the outer frame has a cavity, the side of the outer frame has a side groove for installing a profile pressing piece, and the upper end of the notch of the side groove has a second A convex strip, the carrying part is located on the outer frame, and is used for carrying the workpiece to be installed.
  • the bottom of the outer frame has an opening, and the profile further includes a reinforcing member inserted into the cavity through the opening.
  • the outer surface of the lower end of the side slot and the outer surface of the upper end of the side slot are on the same plane.
  • the lower end of the side slot is flat.
  • the lower end of the slot of the side slot also has a second convex line.
  • the end surface of the second convex line is inclined downward from the inside to the outside relative to the bottom surface of the profile.
  • the inclination angle of the end surface of the second convex line relative to the bottom surface of the profile is between 10° and 20°.
  • the top surface of the side groove and the end surface of the first convex line are inclined upward from the inside to the outside, wherein, assuming that the thickness of the first convex line is b, The height of the first protrusion is e, the depth of the side groove is c, the width of the notch of the side groove is H, and the inclination angle of the end surface of the first protrusion relative to the bottom surface of the profile is ⁇ , The inclination angle of the top surface of the side groove relative to the bottom surface of the profile is ⁇ , then:
  • the inclination angles ⁇ and ⁇ are between 10-20°.
  • the inclination angle of the top surface of the side groove and the end surface of the first protrusion relative to the bottom surface of the profile is 0.
  • the profile pressing piece has a joint portion combined with the side groove, and the joint portion includes a first side and a second side and a third side respectively connecting two ends of the first side , wherein the connection between the first side and the second side has a first protrusion, and the connection between the first side and the third side has a second protrusion, when the profile and the profile When the pressing pieces are combined, the first protrusion snaps into the top surface of the side groove, and the second protrusion snaps into the bottom surface of the side groove.
  • the vertical distance between the bottom surface of the side groove and the bottom surface of the profile is greater than or equal to the vertical distance between the second convex end surface and the bottom surface of the profile pressing piece.
  • the second side of the profile pressing piece has a third protrusion spaced opposite to the first protrusion, and a third protrusion is formed between the first protrusion and the third protrusion.
  • the first groove is adapted to cooperate with the first protrusion, wherein the bottom surface of the first groove is inclined upward from the outside to the inside, and the angle of inclination relative to the bottom surface of the profile pressing part is greater than or equal to the first protrusion The angle of inclination of the end face of the strip relative to the bottom face of the profile.
  • the outer surface of the third protrusion is inclined inwardly from bottom to top, and the angle of inclination relative to the first side is greater than or equal to the end of the first convex strip. The angle of inclination of the surface relative to the bottom surface of the profile.
  • the height of the first convex line is 2.5-3.5mm.
  • the height of the second convex line is 0.8-1.5mm.
  • the second side of the profile pressing piece has a third protrusion spaced opposite to the first protrusion, and a third protrusion is formed between the first protrusion and the third protrusion.
  • the first groove is adapted to cooperate with the first convex strip, and the width of the slot of the side groove is greater than or equal to the distance between the outer end point of the first groove and the end surface of the second protrusion.
  • the gap between the side of the side groove and the first side of the profile press is less than or equal to 2 mm.
  • the side of the side groove has a lateral protrusion.
  • the present invention also proposes a profile, including an outer frame and a load-bearing part, the outer frame has a cavity, the side of the outer frame has a side groove for installing a profile pressing piece, and the upper end of the notch of the side groove has a second a convex strip, the bearing part is located on the outer frame, and is used to carry the workpiece to be installed, the top surface of the side groove and the end surface of the first convex strip are inclined upward from the inside to the outside, wherein, it is assumed that the thickness of the first convex line is b, the height of the first convex line is e, the depth of the side groove is c, the notch width of the side groove is H, and the first convex line
  • the inclination angle of the end surface of the side groove relative to the bottom surface of the profile is ⁇
  • the inclination angle of the top surface of the side groove relative to the bottom surface of the profile is ⁇
  • the lower end of the slot of the side slot also has a second convex line.
  • the end surface of the second protruding strip is inclined downward from the inside to the outside relative to the bottom surface of the profile.
  • the profile pressing piece has a joint portion combined with the side groove, and the joint portion includes a first side and a second side and a third side respectively connecting two ends of the first side , wherein the connection between the first side and the second side has a first protrusion, and the connection between the first side and the third side has a second protrusion, when the profile and the profile When the pressing pieces are combined, the first protrusion snaps into the top surface of the side slot and the lower end of the notch of the side slot, and the second protrusion snaps into the bottom of the side slot.
  • the vertical distance between the bottom surface of the side groove and the bottom surface of the profile is larger than the vertical distance between the second protrusion end surface and the bottom surface of the profile pressing piece.
  • the second side of the profile pressing piece has a third protrusion spaced opposite to the first protrusion, and a third protrusion is formed between the first protrusion and the third protrusion.
  • the first groove is adapted to cooperate with the first protrusion, wherein the bottom surface of the first groove is inclined upward from the outside to the inside, and the angle of inclination relative to the bottom surface of the profile pressing part is greater than or equal to the first protrusion The angle of inclination of the end face of the strip relative to the bottom face of the profile.
  • the outer surface of the third protrusion is inclined inwardly from bottom to top, and the angle of inclination relative to the first side is greater than or equal to that of the first convex strip.
  • the height of the first convex line is 2.5-3.5mm.
  • the height of the second convex line is 0.8-1.5mm.
  • the slot width of the side slot is greater than or equal to the distance between the outer end point of the first groove and the end surface of the second protrusion.
  • the gap between the side of the side groove and the first side of the profile press is less than or equal to 2 mm.
  • the side of the side groove has a lateral protrusion.
  • the present invention also proposes a photovoltaic module frame, comprising: a plurality of profiles as described above, each of which has a bearing portion for carrying workpieces to be installed, each side of the profile has a side groove, and the At least one profile pressing piece is installed on the side channel.
  • a plurality of profiles surround an enclosed area for carrying photovoltaic components.
  • At least some of the plurality of profiles are arranged adjacently, and the adjacently arranged profiles share the profile pressing piece.
  • the length of the profile pressing piece is shorter than the length of the profile.
  • the present invention also proposes a photovoltaic system, comprising: the photovoltaic module frame as described above; a plurality of photovoltaic modules arranged in the photovoltaic module frame.
  • the present invention also proposes a photovoltaic module frame, comprising: a plurality of profiles as described above, each of which has a bearing portion for carrying workpieces to be installed, each side of the profile has a side groove, and the The side slots are used to accommodate at least one profile press.
  • the present invention also proposes a photovoltaic system, including: the frame of the photovoltaic module as described above; a plurality of photovoltaic modules arranged in the frame of the photovoltaic module; a supporting structure, including a bracket and the profile pressing piece as described above, the The profile pressing piece is combined with the side groove of the profile and installed on the bracket.
  • the present invention also proposes a method for assembling a photovoltaic system, which includes the following steps: installing the first joint part of the first profile pressing part in the side groove of the profile with the photovoltaic module; installing the first profile pressing part The side groove of the profile is clamped with the second joint part of the second profile pressing piece installed on the bracket by the fastener; and the first profile pressing piece is installed on the bracket through the fastener; wherein, the The first profile press and the second profile press are profile presses as described above, and the profile is a profile as previously described.
  • the first profile pressing part when the first joint part of the first profile pressing part is installed in the side groove of the profile with the photovoltaic module, the first profile pressing part is inclined at a predetermined angle relative to the profile Put it into the side groove, and then rotate the first profile pressing piece so that the bottom surface of the first profile pressing piece is parallel to the bottom surface of the profile.
  • the profile when the side groove of the profile is engaged with the second joint portion of the second profile pressing piece, the profile is inclined at a predetermined angle relative to the profile to the second The joint part is clamped, and then the profile is rotated so that the bottom surface of the profile is parallel to the bottom surface of the second profile pressing piece.
  • the predetermined angle is between 10-20°.
  • the fastener when the upper end of the notch of the side groove of the profile has a first raised line, and the lower end of the notch of the side groove has a second raised line, the fastener does not tighten the described The second profile pressing part, so that the second profile pressing part has an amount of up and down movement whose value is equal to the height of the second convex line, and when the side groove of the profile is connected to the second profile of the second profile pressing part After the joint is clamped, tighten the fastener.
  • the fastener tightens the second profile pressing.
  • the profile in the step of clamping the side groove of the profile with the photovoltaic module and the second joint part of the second profile pressing part, the profile is first raised to make the profile
  • the lower end point of the first protruding strip is in contact with the floating outer end point of the first groove of the second joint part, and then the side groove of the profile is clamped with the second joint part of the second profile press piece, so The floating outer end point of the first groove is higher than the outer end point of the first groove.
  • the first profile pressing piece when the upper end of the notch of the second profile side groove combined with the second joint portion of the first profile pressing member has a first convex line, and the lower end of the notch of the side groove has a When the second protruding line is used, the first profile pressing piece is not tightened when the first profile pressing piece is installed on the bracket by a fastener.
  • the fastener when the upper end of the side groove of the second profile combined with the second joint portion of the first profile pressing member has a first convex line, and the lower end of the groove of the side groove When there is a second protruding line, and the second protruding end surface of the second joint part of the second profile pressing part is higher than the second protruding end surface of the first joint part, the fastener is used to fasten the When the first profile pressing piece is installed on the bracket, the first profile pressing piece is directly tightened.
  • the sides of the side groove and the first profile pressing piece or the second profile pressing piece are less than or equal to 2mm.
  • the present invention also proposes a method for assembling a photovoltaic system, which includes the following steps: installing the first joint part of the profile pressing part in the side groove of the first profile with the photovoltaic module; Installed on the bracket; and clamping the side groove of the second profile with the second joint portion of the profile pressing piece; wherein, the first profile pressing piece and the second profile pressing piece are the above-mentioned profile pressing pieces Parts, the profile is the profile as described above.
  • the first joint part of the profile pressing piece is installed in the side groove of the first profile with the photovoltaic module, and the profile pressing piece is inclined at a predetermined angle relative to the profile into the In the side groove, the profile pressing piece is rotated so that the bottom surface of the profile pressing piece is parallel to the profile bottom surface.
  • the second profile when the side groove of the second profile is clamped to the second joint portion of the profile pressing piece, the second profile is inclined at a predetermined angle relative to the profile pressing piece and the The second joint portion is clamped, and then the second profile is rotated so that the bottom surface of the second profile is parallel to the bottom surface of the profile pressing piece.
  • the predetermined angle is between 10-20°.
  • the distance between the side of the side groove of the first profile or the second profile and the side of the profile pressing piece is less than or equal to 2mm.
  • the profile pressing piece of the present invention is very convenient to combine and fix the profile, and the profile pressing piece can provide support for the profile, thereby enhancing the strength of the profile.
  • the strength of the profile itself does not need to be strengthened, thereby saving material costs.
  • the photovoltaic module frame and the photovoltaic system of the present invention are easy to install and reduce labor costs.
  • Fig. 1 is a structural schematic diagram of a profile used for a frame of a photovoltaic module
  • Fig. 2 is a schematic diagram of the profile of Fig. 1 being used to form a photovoltaic module
  • Fig. 3 is the schematic diagram that the photovoltaic module of Fig. 2 is installed on the purlin of photovoltaic support;
  • Fig. 4A is a three-dimensional structural schematic diagram of a profile used for a frame of a photovoltaic module according to the first embodiment of the present application;
  • FIG. 4B is a schematic cross-sectional view of a profile used for a frame of a photovoltaic module according to the first embodiment of the present application;
  • Fig. 4C is a variation example of a profile used for a frame of a photovoltaic module according to the first embodiment of the present application.
  • Fig. 5A is a three-dimensional structural schematic diagram of a profile pressing piece according to the first embodiment of the present application.
  • Fig. 5B is a schematic cross-sectional view of a profile pressing part according to the first embodiment of the present application.
  • Fig. 5C is a modification example of a profile pressing piece in the first embodiment of the present application.
  • Fig. 6A is a three-dimensional structural schematic diagram of an assembly method of a profile and a profile pressing piece according to the first embodiment of the present application;
  • Fig. 6B is a schematic cross-sectional view of an assembly method of a profile and a profile pressing piece according to the first embodiment of the present application;
  • FIGS. 7A-7C are schematic diagrams of the assembly steps of a profile and a profile press according to the first embodiment of the present application.
  • Fig. 8 is a perspective schematic diagram of installation of a photovoltaic module according to an embodiment of the present application.
  • Fig. 9 is a schematic cross-sectional view of a profile used for a frame of a photovoltaic module according to the second embodiment of the present application.
  • Fig. 10 is a schematic cross-sectional view of a profile pressing part according to the second embodiment of the present application.
  • Fig. 11 is a schematic cross-sectional view of an assembly method of a profile and a profile pressing piece according to the second embodiment of the present application;
  • 12A-12B are schematic diagrams of the assembly steps of a profile and a profile press according to the second embodiment of the present application.
  • Fig. 13A is a three-dimensional structural schematic diagram of a profile pressing piece with elastic strips according to the third embodiment of the present application.
  • Fig. 13B is a schematic cross-sectional view of a profile pressing part with elastic strips according to the third embodiment of the present application.
  • Fig. 14A is a three-dimensional structural schematic diagram of the assembly method of a profile and a profile press piece with elastic strips according to the third embodiment of the present application;
  • Fig. 14B is a schematic cross-sectional view of an assembly method of a profile and a profile press with elastic strips according to the third embodiment of the present application;
  • 15A-15C are schematic diagrams of the assembly steps of a profile and a profile press with elastic strips according to the third embodiment of the present application.
  • Fig. 16A is a schematic structural view of a profile according to the fourth embodiment of the present application.
  • Fig. 16B is a schematic diagram of the assembly of a profile and a profile pressing piece according to the fourth embodiment of the present application.
  • 17A-17B are schematic structural views of a profile according to an embodiment of the present application.
  • the first convex line 113 The first convex line 113
  • orientation words such as “front, back, up, down, left, right", “horizontal, vertical, vertical, horizontal” and “top, bottom” etc. indicate the orientation Or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description. In the absence of a contrary statement, these orientation words do not indicate or imply the device or element referred to It must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as limiting the protection scope of the present application; the orientation words “inner and outer” refer to the inner and outer relative to the outline of each component itself.
  • spatially relative terms may be used here, such as “on !, “over !, “on the surface of !, “above”, etc., to describe The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as “above” or “above” other devices or configurations would then be oriented “beneath” or “above” the other devices or configurations. under other devices or configurations”. Thus, the exemplary term “above” can encompass both an orientation of “above” and “beneath”. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.
  • the embodiments of the present application describe profile presses and profiles.
  • the profile press is used to join and fix the profiles, which have side grooves on the sides.
  • One side of the profile pressing piece has a first coupling portion for coupling with a side groove of a profile, and the opposite side of the profile pressing piece has a second coupling portion for coupling with a side groove of another profile.
  • the profile press has fastening holes extending through it. When the profile pressing piece is installed on the support of the photovoltaic module, the profile pressing piece can be fixed through the fastener through the fastening hole.
  • the upper end of the notch of the profile side groove has a first protruding line.
  • the first joint portion and the second joint portion of the profile press piece respectively include a first side and a second side and a third side respectively connecting two ends of the first side.
  • the junction of the first side and the second side has a first protrusion.
  • Fig. 4A is a three-dimensional structural schematic diagram of a profile used for a photovoltaic module frame according to the first embodiment of the present application
  • Fig. 4B is a schematic cross-sectional view of a profile used for a photovoltaic module frame according to the first embodiment of the present application
  • Fig. 5A is A schematic diagram of a three-dimensional structure of a pressed profile according to the first embodiment of the present application
  • FIG. 5B is a schematic cross-sectional view of a pressed profile according to the first embodiment of the present application.
  • an embodiment of the present invention provides a profile pressing part 200a for combining and fixing the profile 100a.
  • the profile 100a includes an outer frame 110 and a bearing portion 120, the outer frame 110 has a cavity 111, the side of the outer frame 110 has a side groove 112 for installing a profile pressing piece, the bearing portion 120 is located on the outer frame 110, and is used to carry the Install artifacts.
  • the workpiece to be mounted is a photovoltaic module.
  • One side of the profile pressing piece 200a has a first coupling portion 220 for coupling with the side groove 112 of the profile 100a, and the opposite side of the profile pressing piece 200a has a second coupling portion 230 for coupling with another profile 100a of the same shape.
  • the side groove 112, and the profile pressing piece 200a has a fastening hole 210 therethrough. Specifically, in this embodiment, the fastening hole 210 is located in the middle of the profile pressing part 20 .
  • the upper and lower ends of the side groove 112 have a first convex strip 113 and a second convex strip 114 respectively.
  • the side slot 112 is located on the right side of the profile 100a, and the first protruding line 113 and the second protruding line 114 are opposite up and down.
  • the first combining portion 220 and the second combining portion 230 respectively include a first side 241 and a second side 242 and a third side 243 respectively connecting two ends of the first side 241 .
  • the second side and the third side of the first joint part 220 and the second joint part 230 extend as one body.
  • the connection between the first side 241 and the second side 242 has a first protrusion 251
  • the connection between the first side 241 and the third side 243 has a second protrusion 252 .
  • the profile pressing piece 200a is combined with the profile 100a, the first protrusion 251 goes over the first protruding line 113 and snaps into the top surface of the side groove 112, and the second protrusion 252 goes over the second protruding bar 114 and snaps into the bottom of the side slot 112.
  • the profile pressing part 200a is axisymmetric. In FIGS.
  • the first combining portion 220 is the left side part of the profile pressing part 200a
  • the second combining part 230 is the right side part of the profile pressing part 200a.
  • the left side of the profile pressing piece 200a is the first side 241 of the first joint portion 220
  • the right side of the profile pressing piece 200a is the first side 241 of the second joint portion 230
  • each of the upper left and upper right corners of the profile pressing part 20 has a first protrusion 251
  • each of the lower left and right corners has a second protrusion 252 .
  • the lower end of the side slot is vertically aligned with the upper end of the slot. It can be understood that this alignment is approximate, and a small misalignment is allowed, such as allowing the lower end of the notch to retract into the groove or extend toward the groove relative to the lower end of the notch.
  • the profile pressing piece can be inclined at a small angle relative to the bottom surface 117 of the profile, such as 10-20°, and can be inserted into the side groove of the profile from the side.
  • the end surface of the first protruding strip 113 of the profile 100a is inclined upward from the inside to the outside.
  • the inclination angle of the end surface of the first convex strip 113 relative to the bottom surface 117 of the profile is ⁇ , which satisfies the following conditions:
  • b is the thickness of the first convex strip 113
  • e is the height of the first convex strip 113
  • c is the depth of the side groove
  • H is the notch width of the side groove (that is, the lower end surface of the first convex strip 113 and the second convex The distance between the upper end faces of the strip 114).
  • the end surface of the second protruding line 114 of the side groove is inclined downward from the inside to the outside, and the inclination angle of the second protruding line 114 of the side groove relative to the bottom surface 117 of the profile is ⁇ .
  • the top surface of the side groove is inclined upward from the inside to the outside, and an inclination angle ⁇ relative to the profile bottom surface 117 is set, ⁇ .
  • the profile pressing piece can be screwed into the side groove of the profile at a small angle relative to the bottom surface 117 of the profile.
  • the angular range of ⁇ , ⁇ and ⁇ is 10-20°, optionally 15-18°.
  • the height of the first protruding strip 113 should not be too high, so that the profile pressing piece 200a is inclined at a small angle relative to the profile and screwed into the side groove of the profile. Moreover, the height of the first protruding strip 113 should not be too low, otherwise the profile pressing piece 200a is easy to fall out of the side groove.
  • the height e of the first protrusion 113 is 2.5-3.5 mm.
  • the height of the second convex strip 114 should not be too high, so that the profile pressing piece 200a can be screwed into the side groove of the profile. Moreover, the height of the second protruding strip 114 should not be too low, otherwise the profile pressing piece 200a is easily detached from the side groove.
  • the height f of the second protrusion 114 is 0.8-1.5 mm.
  • the distance h between the end surface of the first protrusion 251 and the end surface of the second protrusion 252 is greater than the distance h between the end surface of the first protruding line 113 of the side groove 112 and the lower wall surface of the side groove H is larger and smaller than H+e, usually only slightly smaller.
  • the second side 242 of the profile pressing piece 200a is upwardly inclined in the direction from the outside to the inside, and is provided with an inclination angle ⁇ relative to the profile pressing piece bottom surface 255 (when the profile pressing piece 200a is placed flat, the profile bottom surface 255 is in a horizontal state).
  • the third protrusion 253 has an inclined surface facing the first protrusion 251, and the inclination angle of the inclined surface relative to the first side 241 (the first side 241 is in a vertical state when the profile pressing part 200a is placed flat) is set to be ⁇ .
  • ⁇ , and ⁇ so that when the profile pressing piece 200a is screwed into the side groove, it will not be hindered by the top surface of the side groove or the first protrusion.
  • the space for a certain part should be slightly larger than the part.
  • the depth c of the side groove 112 is slightly larger than the thickness C (left-right direction in the figure) of the first protrusion 251, and the projected thickness of the first groove 261 in the horizontal direction is slightly larger than the thickness of the first convex strip 113.
  • the thickness of the side groove 112 The depth c is also slightly larger than the thickness of the second protrusion 252 (the left and right direction in the figure), the projected thickness of the second groove 262 in the horizontal direction is slightly larger than the thickness of the second convex strip 114, and the height E of the first protrusion 251 is larger than The height e of the first convex strip 113 is slightly larger and so on.
  • the vertical distance between the bottom surface of the second protrusion 252 and the bottom surface of the profile pressing part is F, then F is less than or equal to the vertical distance t between the bottom surface of the side groove 112 and the bottom surface of the profile. In this way, after the profile and the profile pressing piece are assembled, the second protrusion 252 can be pressed to the bottom surface of the side groove 113 .
  • the distance L between the outer end point A of the first groove 261 and the lower end B of the second protrusion 252 is less than or equal to the notch width H of the side groove, so that the profile pressing piece 200a can be snapped into the side groove. Since the profile pressing part 200a in this embodiment has a symmetrical structure, the first grooves 261 on both sides meet this condition and cooperate with profiles with the same structure and parameters.
  • the profile pressing piece 200a can be slightly inclined (as shown in FIG. 7A ), and the first protrusion 251 is inserted into the side groove 112 over the first protruding line 113.
  • the second edge 242 and the first protruding bar 113 fits together, and the profile pressing piece 200a rotates in a direction that makes the bottom surface 255 of the profile pressing piece 200a parallel to the bottom surface 117 of the profile 100a, and the second protrusion 252 goes over the second protruding line 114 and enters the side groove 112. Since the aforementioned h is greater than H, the profile pressing piece 200a is not easy to slip out of the side groove 112 .
  • the gap between the side of the profile pressing piece 200a (more specifically, the second side 242) and the side of the side groove 112 of the profile 100a is less than or equal to 2mm.
  • a lateral protrusion 116 can be provided on the side of the side groove 112, which can limit the gap between the side of the side groove 112 and the second side 242 of the profile pressing part 200a.
  • a third protrusion 253 on the left and right sides of the upper side of the profile pressing part 200a; a fourth protrusion 254 is respectively provided on the left and right sides of the bottom side of the profile pressing part 200a.
  • the bottom surface 255 of the profile pressing part is two end surfaces of the fourth protrusions 254 (as shown in FIG. 5B ).
  • the bottom surface of the profile press is the surface between the two fourth protrusions 254 in FIG. 5B.
  • FIG. 4C is a variation example of a profile used for a frame of a photovoltaic module according to the first embodiment of the present application.
  • the profile 100a' in this embodiment is different from that shown in Fig. 4A in that the groove surface of the side groove 112 is flat, without the lateral protrusion 116 as shown in Fig. 4A.
  • Fig. 5C is a modified example of a profile pressing part of the first embodiment of the present application. Referring to FIG. 5C , there is a protrusion 241a on the first side 241 of the profile pressing piece.
  • one or more positions of the profile may additionally be provided with reinforcements as required.
  • the bottom of the outer frame 110 of the profile 100c has an opening 115 .
  • the profile comprises a reinforcement 118 inserted into the cavity 111 from the opening 115 .
  • the stiffener 118 may include a support portion 118a and a bottom edge 118b.
  • the support portion 118a is vertically intersected with the bottom edge 118b and is integrally formed.
  • the support portion 118a is in the shape of a "king", a “day” (as shown in the figure), a “mesh”, an inverted T, a frame, a plurality of frames, and a half frame in cross section.
  • Fig. 6A is a three-dimensional structural schematic diagram of an assembly method of a profile and a profile pressing piece according to the first embodiment of the present application
  • Fig. 6B is a cross-sectional schematic diagram of an assembly mode of a profile and a profile pressing piece according to the first embodiment of the present application.
  • the assembly method of a profile 100a and profile pressing piece 200a in this embodiment is specifically: two profiles 100a are symmetrically fixed on both sides of the profile pressing piece 200a, and the left and right Both sides are connected by fixing the first protrusion 251 and the second protrusion 252 into the side groove 112 to complete the connection.
  • a groove 261 (refer to FIG.
  • the fastener 211 fixes the profile pressing piece 200a on the bracket 400 through the fastening hole 210, thereby simultaneously fixing the two profiles 100a mounted on the left and right sides of the profile pressing piece 200a.
  • the fastener 211 includes a screw 211a and a nut 211b.
  • FIGS. 7A-7C are schematic diagrams of the steps of assembling a profile and a profile pressing part according to the first embodiment of the present application.
  • the method for installing a profile pressing piece 200a and profile 100a as described in the above embodiment is as follows:
  • four profiles 100a (2 are shown in the figure) are installed around the photovoltaic module 300a.
  • a first profile pressing piece 200a1 is installed in the side groove of one side profile 100a (right side shown in FIG. 7A ).
  • the bottom surface of the piece 200a1 is parallel to the bottom surface of the profile.
  • step (3) Install the first profile pressing piece on the bracket through fasteners.
  • the fastener 211 installed in step (2) (the left fastener 211 shown in Figure 7C) is tightened, and then the fastener 211 installed in step (1) is tightened by another fastener 211.
  • the first profile pressing piece 200a1 is fixed on the bracket 400.
  • the fastener 211 is not tightened at this time, so that the second profile pressing piece 200a2 has the amount of up and down movement of the second convex height f, which is convenient for the other side of the profile.
  • the gap between the side of the profile pressing piece (more specifically the first side 241 ) and the side of the side groove 112 of the profile is less than or equal to 2 mm.
  • FIG. 8 is a perspective schematic diagram of installation of a photovoltaic module according to an embodiment of the present application. After the steps shown in FIGS. 7A-7C , a part of the frame of the installed photovoltaic module (the photovoltaic module and the horizontal profiles are hidden) is shown in FIG. 8 .
  • the photovoltaic module frame includes a plurality of profile pressings 200a as described above; a plurality of strip-shaped profiles 100a, each profile 100a has a bearing part 120 (see FIG. 4A ) for carrying workpieces to be installed, and each profile 10 side There is a side slot 112, and at least one profile pressing piece 200a is installed on the side slot 112.
  • a plurality of profiles 100a substantially form an enclosed area for carrying photovoltaic modules.
  • At least some of the profiles 100a are adjacently arranged among the plurality of profiles 100a, and the adjacently arranged profiles 100a share the profile pressing piece 200a.
  • the length of the profile pressing part 200a is shorter than that of the profile 100a to save material.
  • the profile pressing part 200a is not a part of the photovoltaic module, but constitutes a supporting structure of the photovoltaic module together with the bracket 400 .
  • the profile 100a on the frame of the photovoltaic module has a side groove, and the photovoltaic module and the supporting structure are installed through the connection between the side groove of the profile and the pressing piece of the profile, so the connection between the photovoltaic module and the supporting structure adopts the way of a card slot.
  • FIG. 9 is a schematic cross-sectional view of a profile used for a frame of a photovoltaic module according to the second embodiment of the present application
  • FIG. 10 is a schematic cross-sectional view of a profile pressing part according to the second embodiment of the present application.
  • the upper end of the side groove 112 of the profile 100 b has a first protruding line 113
  • the lower end 114 a of the groove is flat.
  • the first joint part 220 and the second joint part 230 of the profile pressing part 200b respectively comprise a first side 241 and a second side 242 and a third side 243 respectively connecting two ends of the first side 241, wherein the first side 241 and the second side
  • the joint of 242 has a first protrusion 251 .
  • the junction 252' between the first side 241 and the third side 243 has no protrusion, and is also flat.
  • the side groove 112 is located on the left side of the profile 100b.
  • the profile pressing part 200b is axisymmetric
  • the first joint part 220 is the left part of the profile pressing part 200b
  • the second joint part 230 is the right part of the profile pressing part 200b.
  • the left side of the profile pressing piece 200b is the first side 241 of the first joint portion 220; the right side of the profile pressing piece 200b is the first side 241 of the second joint portion 230; the left and right sides of the upper side of the profile pressing piece 200b are respectively The second side 242 of the first joint part 220 and the second joint part 230 ;
  • each of the upper left corner and the upper right corner of the profile pressing piece 200b has a first protrusion 251 .
  • the inclination angle of the end surface of the first protrusion 113 relative to the bottom surface 117 of the profile 100b is 0, and the inclination angle of the top surface of the side groove 112 relative to the bottom surface 117 of the profile 100b is 0.
  • the inclination angle of the upper surface of the second side 242 inside the first protrusion 251 relative to the bottom surface 255 of the profile is zero.
  • the second side 242 of the profile pressing piece 200b has a third protrusion 253 spaced opposite to the first protrusion 251, and a first concave is formed between the first protrusion 251 and the third protrusion 253.
  • the groove 261 is adapted to cooperate with the first protruding strip 113 , for example, to engage with it.
  • a part of the upper surface of the second side 242 serves as the bottom surface of the groove.
  • the third side 243 has a fourth protrusion 254 adjacent to the junction 252'.
  • Fig. 11 is a schematic cross-sectional view of an assembly method of a profile and a profile pressing part according to the second embodiment of the present application.
  • the assembly method of a profile 100b and a profile pressing piece 200b in this embodiment is specifically: two profiles 100b are symmetrically fixed on both sides of the profile pressing piece 200b, and The left and right sides are connected by fixing the first protrusion 251 into the side groove 112 to complete the connection. After the fixing is completed, the first groove 261 formed by the first protrusion 251 and the third protrusion 253 of the profile pressing piece 200b and The first protruding lines 113 of the profile 100b are attached to each other.
  • the fastener 211 fixes the profile pressing piece 200b on the bracket 400 through the fastening hole 210, thereby simultaneously fixing the two profiles 100b mounted on the left and right sides of the profile pressing piece 200b.
  • the fastener 211 includes a screw 211a and a nut 211b.
  • FIGS. 12A-12B are schematic diagrams of assembly steps of a profile and a profile press piece according to the second embodiment of the present application.
  • the method of installing a profile pressing part 200b and profile 100b as described in this embodiment is as follows:
  • the gap between the side of the profile pressing piece (more specifically, the second side 242 ) and the side of the side groove 112 of the profile is less than or equal to 2mm.
  • the profile pressing part 200b is not a part of the frame of the photovoltaic module, but forms a supporting structure of the photovoltaic module together with the bracket 400 .
  • the profile 100b on the frame of the photovoltaic module has a side groove, and the photovoltaic module and the supporting structure are installed through the connection between the side groove of the profile and the pressing part of the profile, so the connection between the photovoltaic module and the supporting structure adopts the way of a card slot.
  • FIG. 13A is a schematic three-dimensional structural view of a pressed profile with elastic strips according to the third embodiment of the present application
  • FIG. 13B is a schematic cross-sectional view of a pressed profile with elastic strips according to the third embodiment of the present application.
  • the upper and lower ends of the side groove 112 of the profile 100a respectively have a first convex line 113 and a second convex line 114
  • the first The joint part 220 and the second joint part 230 respectively comprise a first side 241 and a second side 242 and a third side 243 respectively connecting the two ends of the first side 241, wherein the junction of the first side 241 and the second side 242 has a first
  • the protrusion 251 has a second protrusion 252 at the junction of the first side 241 and the third side 243 of the first combining portion 220 .
  • the height of the end surface 252b of the second protrusion 252 of the second joint part 230 relative to the bottom surface 255 of the pressed part is higher than the height of the end surface 252a of the second protrusion 252 of the first joint part 220 relative to the bottom surface 255 of the pressed part.
  • the first protrusion 251 of the first joint part 220 and the second joint part 230 cross over the first convex strip 113 and snap into the top surface of the side groove 112, and the first joint part 220
  • the second protrusion 252 crosses over the second protruding line 114 and snaps into the bottom surface of the side groove 112
  • the second protrusion 252 of the second joint part crosses over the second protruding line 114 and is opposite to the bottom surface of the side groove 112 (refer to FIG. 14B ).
  • an elastic strip 270 is disposed in the third groove 263 of the second combining portion 230 (the elastic strip is not shown in FIG. 13B ).
  • the elastic strip 270 of the second combining part 230 contacts with the second convex strip 114 .
  • the elastic strip 270 is a rubber strip or a spring clip.
  • the first combining portion 220 is the left part of the profile pressing piece 200c
  • the second combining portion 230 is the right side portion of the profile pressing piece 200c.
  • the left side of the profile pressing piece 200c is the first side 241 of the first joint portion 220
  • the right side of the profile pressing piece 200c is the first side 241 of the second joint portion 230
  • the left and right sides of the upper side of the profile pressing piece 200c are respectively The second side 242 of the first joint part 220 and the second joint part 230
  • the height of the end surface 252b of the second protrusion 252 of the second joint part 230 relative to the bottom surface 255 of the pressed part is higher than the height of the end surface 252a of the second protrusion 252 of the first joint part 220 relative to the bottom surface 255 of the pressed part. This makes it easier for the second combining portion 230 to be combined with the side groove of the profile, while still maintaining the fixation after the combination.
  • first combining portion 220 can be set with reference to the first embodiment.
  • the distance L between the outer end point A of the first groove 261 of the first joint part and the lower end B of the second protrusion of the first joint part is less than or equal to the notch width H of the side groove.
  • the size setting of the second combining portion 230 is different.
  • the vertical distance L1 between the floating outer end point A' of the first groove 261 of the second joint part 230 and the end surface 252a of the second protrusion 252 of the second joint part 230 is less than or equal to the notch width H of the side groove .
  • the suspended outer end point A' is the lowest point where the first groove 261 contacts the lower end point of the first protruding line of the profile 100a when the profile pressing piece 200c is combined with the profile 100a, and the suspended outer end point A' is higher than the outer end point A.
  • the height difference e1 between the suspended outer end point A' and the outer end point A is equal to the height f of the second convex strip 114.
  • the vertical distance F from the second protruding end surface 252a of the second joint portion 230 to the bottom surface of the profile pressing piece 200b is greater than or equal to the vertical distance (f+t) between the notch end surface of the side groove and the profile bottom surface (refer to Fig. 4B).
  • L1 and H are designed so that after the profile pressing piece 200b is installed in place by fasteners, another profile (will be described later with reference to FIGS. 15A-15C ) can be combined with the profile pressing piece 200b.
  • a chamfer can be designed at the position P where the lower left corner of the profile 100a (refer to FIG. 15C ) is in contact with the bracket, so as to reduce the height of the passive elevation of the profile 100a during installation, thereby reducing the height of the suspended outer end point A'.
  • the fastener 211 is not tightened during installation, so that the profile pressing piece has the amount of up and down movement of the second convex strip height f, then the second joint portion 230 only needs to meet the requirements of L and H. relationship.
  • the second side 242 has a third protrusion 253 spaced opposite to the first protrusion 251
  • the third side 243 of the second joint portion has a fourth protrusion 253 spaced opposite to the second protrusion 252 . raised 254.
  • a first groove 261 is formed between the first protrusion 251 and the third protrusion 253 to cooperate with the first protrusion 113 .
  • a second groove 262 is formed between the second protrusion 252 of the first joint part 220 and the third side 243 to cooperate with the second protruding strip 114 (for example, snap in).
  • a third groove 263 is formed between the four protrusions 254 for cooperating (for example snapping) with the second protrusion 114 .
  • Fig. 14A is a three-dimensional schematic diagram of the assembly method of a profile with side grooves and a profile press with elastic strips according to the third embodiment of the present application
  • Fig. 14B is a profile with side grooves and a profile with elastic strips according to the third embodiment of the present application Schematic cross-sectional view of the assembly method of the profile press with elastic strips.
  • the assembly method of a profile 100a and profile pressing piece 200c in this embodiment is as follows: two profiles 100a are respectively fixed on both sides of the profile pressing piece 200c, and the left side passes the first protrusion The first protrusion 251 and the second protrusion 252 are fixed into the side groove 112 to complete the connection, and the right side is completed by fixing the first protrusion 251 into the side groove 112 while making the second protrusion 114 of the side groove 112 contact the elastic strip 270. connect.
  • the first groove 261 formed by the first protrusion 251 and the third protrusion 253 of the profile pressing piece 200c fits with the first protruding line 113 of the profile 100a, and the first joint part of the profile pressing piece 200c
  • the second groove 262 formed by the second protrusion 252 and the fourth protrusion 254 of 220 fits with the second protruding strip 114 of the profile 100a, and the elastic strip 270 of the second joint part 230 of the profile pressing part 200c and the profile 100a
  • the second protruding strip 114 fits together.
  • the fastener 211 fixes the profile pressing piece 200c on the bracket 400 through the fastening hole 210, thereby simultaneously fixing the two profiles 100a mounted on the left and right sides of the profile pressing piece 200c.
  • the fastener 211 includes a screw 211a and a nut 211b.
  • FIGS. 15A-15C are schematic diagrams of the steps of assembling a profile and a profile pressing piece with elastic strips according to the third embodiment of the present application.
  • the method for installing a profile pressing part 200c and profile 100a as described in this embodiment is as follows:
  • two profiles 100a are installed symmetrically on the left and right sides of the photovoltaic module 300.
  • a first profile pressing piece 200c1 is installed in the side groove of one side of the profile 100a (the right side shown in FIG. 15A), and the profile pressing piece 200c1 can be snapped into the side groove 112 by turning a small angle (such as 10-20° or 15-18°); after that, the first profile pressing piece 200c is rotated to make the bottom surface of the first profile pressing piece 200c1 and the bottom surface of the profile 100a parallel.
  • step (1) Install the first profile pressing part 200c1 on the bracket through fasteners. As shown in FIG. 15C , the profile pressing part 200c1 installed in step (1) is fixed on the bracket 400 by the fastener 211, and the fastener 211 is tightened.
  • the gap between the side of the profile pressing piece (more specifically the first side 241 ) and the side of the side groove 112 of the profile is less than or equal to 2mm.
  • the profile pressing parts 200c1 and 200c2 are not part of the frame of the photovoltaic module, but form the support structure of the photovoltaic module together with the bracket 400 .
  • the profile 100a on the frame of the photovoltaic module has a side groove, and the photovoltaic module and the supporting structure are installed through the connection between the side groove of the profile and the pressing piece of the profile, so the connection between the photovoltaic module and the supporting structure adopts the way of a card slot.
  • Fig. 16A is a schematic structural view of a profile of the fourth embodiment of the present application.
  • Fig. 16B is a schematic diagram of the assembly of a profile and a profile pressing piece according to the fourth embodiment of the present application.
  • the profile pressing piece matched in this embodiment is similar to that shown in Fig. 5B of the first embodiment.
  • the space for accommodating a certain part should be slightly larger than that part.
  • the depth c of the side groove 112 is slightly larger than the thickness C (left and right direction in the figure) of the first protrusion 251, and the projected thickness of the first groove 261 in the horizontal direction is larger than that of the first convex strip 113.
  • the thickness b is slightly larger
  • the depth c of the side groove 112 is also slightly larger than the thickness of the second protrusion 252 (the left and right direction in the figure)
  • the projected thickness of the second groove 262 in the horizontal direction is slightly larger than the thickness of the second convex strip 114
  • the height E of the first protrusion 251 is slightly larger than the height e of the first convex strip 113 and so on.
  • the vertical distance between the end surface of the second protrusion 252 and the bottom surface 255 of the profile pressing part 200a is F, and F is less than or equal to the vertical distance t between the bottom surface of the side groove 112 and the profile bottom surface 177 . In this way, after the profile 100c and the profile pressing piece 200a are assembled, the second protrusion 252 can be pressed to the bottom surface of the side groove 112 .
  • the distance L between the outer end point A of the first groove 261 and the lower end B of the second protrusion 252 is less than or equal to the notch width H of the side groove, so that the profile pressing piece 200a can be snapped into the side groove. Since the profile pressing part 200a in this embodiment has a symmetrical structure, the first grooves 261 on both sides meet this condition and cooperate with profiles with the same structure and parameters.
  • numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of the embodiments use the modifiers "about”, “approximately” or “substantially” in some examples. grooming. Unless otherwise stated, “about”, “approximately” or “substantially” indicates that the stated figure allows for a variation of ⁇ 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that can vary depending upon the desired characteristics of individual embodiments. In some embodiments, numerical parameters should take into account the specified significant digits and adopt the general digit reservation method. Although the numerical ranges and parameters used in some embodiments of the present application to confirm the breadth of the scope are approximate values, in specific embodiments, such numerical values are set as precisely as practicable.

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  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)
  • Connection Of Plates (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
PCT/CN2022/137252 2021-12-07 2022-12-07 型材压件、型材、光伏组件边框、光伏系统及其组装方法 Ceased WO2023104098A1 (zh)

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AU2022406606A AU2022406606A1 (en) 2021-12-07 2022-12-07 Sectional material pressing member, sectional material, photovoltaic module frame, photovoltaic system and assembling method thereof
EP22903519.1A EP4447315A4 (en) 2021-12-07 2022-12-07 PROFILED MATERIAL PRESSING ELEMENT, PROFILED MATERIAL, PHOTOVOLTAIC MODULE FRAME, PHOTOVOLTAIC SYSTEM AND ASSOCIATED ASSEMBLY METHOD
US18/712,530 US20250015752A1 (en) 2021-12-07 2022-12-07 Sectional material pressing member, sectional material, photovoltaic module frame, photovoltaic system and assembling method thereof
JP2024534092A JP2025500032A (ja) 2021-12-07 2022-12-07 形材押え部品、形材、太陽光発電アセンブリフレーム、太陽光発電システム及びその組立方法

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CN202210493719.8A CN115589189A (zh) 2021-12-07 2022-05-07 型材压件、型材、光伏组件边框、光伏系统及其组装方法
CN202221081122.4 2022-05-07
CN202221081122.4U CN218449985U (zh) 2021-12-07 2022-05-07 型材压件、型材、光伏组件边框及其光伏系统
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