CN214384891U

CN214384891U - Mounting structure of BIPV photovoltaic roof back micro inverter

Info

Publication number: CN214384891U
Application number: CN202120623451.6U
Authority: CN
Inventors: 邝亚镭
Original assignee: Jiangxi Dingyao Intelligent Technology Co ltd
Current assignee: Jiangxi Dingyao Intelligent Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-10-12
Anticipated expiration: 2031-03-26

Abstract

The utility model relates to a mounting structure of BIPV photovoltaic roof back micro inverter, including roof truss upper chord, a plurality of cell type sandalwood strips that are parallel to each other have been laid perpendicularly to roof truss upper chord's top, and photovoltaic module has been laid to the cell type sandalwood strip one side of keeping away from roof truss upper chord. Photovoltaic module lays and forms the BIPV roof, installs the dc-to-ac converter at the photovoltaic module back for micro-inverter does not occupy power generation system's generating area, improves photovoltaic module's the area of laying, with the utilization ratio that improves light energy, and sets up detachable roof ridge apron in roof ridge department, the effectual micro-inverter that has protected, thereby prolonged micro-inverter's life.

Description

Mounting structure of BIPV photovoltaic roof back micro inverter

Technical Field

The utility model belongs to the technical field of the dc-to-ac converter technique and specifically relates to a mounting structure of miniature dc-to-ac converter in BIPV photovoltaic roof back is related to.

Background

The inverter is a converter which converts direct current electric energy (batteries and storage batteries) into constant-frequency constant-voltage or frequency-modulation voltage-regulation alternating current (generally 220V,50Hz sine wave). It is composed of inverter bridge, control logic and filter circuit. The multifunctional electric grinding wheel is widely applicable to air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVDs (digital video disks), VCDs (video recorders), computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting and the like.

In the construction and development of the photovoltaic industry, along with the reduction of available land resources of photovoltaic, the proportion of the project of the roof distributed photovoltaic power station is continuously increased, and the large-area color steel tile roof and the high-power consumption user of the industrial factory building with the steel structure undoubtedly meet the construction requirements of the project of the roof distributed photovoltaic, so that the photovoltaic support built on the color steel tile roof is more and more widely applied.

In the prior art, the photovoltaic module is arranged on the color steel tile roof, so that the bearing load of a house is increased. Lay polylith photovoltaic module on various steel tile roofing to at various steel tile roofing one side-mounting dc-to-ac converter support, miniature inverter fixes on the support, has reduced photovoltaic module's power generation area on the one hand, and on the other hand makes the length increase of required connecting wire between the photovoltaic module, causes great line loss, has improved manufacturing cost.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a BIPV photovoltaic roof back micro inverter's mounting structure replaces various steel tile with photovoltaic module, reduces the burden that bears in house, installs micro inverter at the photovoltaic module back, reduces the area that micro inverter occupied, improve photovoltaic module's the area of laying, with the utilization ratio that improves light energy, and set up detachable ridge apron on micro inverter, the effectual micro inverter that has protected, thereby the life of micro inverter has been prolonged.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a BIPV photovoltaic roof back micro inverter's mounting structure, includes the roof truss and goes up the chord, a plurality of cell type sandalwood strips that are parallel to each other have been laid perpendicularly to the top of roof truss top chord, cell type sandalwood strip is kept away from photovoltaic module has been laid to the one side of roof truss top chord, photovoltaic module below can be dismantled and be fixed with micro inverter, roof ridge department can be dismantled and be fixed with the ridge apron.

Through above-mentioned technical scheme, it replaces various steel tile with photovoltaic module, reduces the burden that bears in house, installs micro-inverter at the photovoltaic module back, reduces the area that micro-inverter occupied, improves photovoltaic module's the area of laying to improve the utilization ratio of light energy, and set up detachable ridge apron on micro-inverter, the effectual micro-inverter that has protected, thereby prolonged micro-inverter's life.

The present invention may be further configured in a preferred embodiment as: the micro inverter is arranged in the center of the back of four photovoltaic modules which are arranged in a shape like a Chinese character tian.

The present invention may be further configured in a preferred embodiment as: the micro inverter is fixed on the groove-shaped purline close to the center of the shape of the Chinese character tian.

Through the technical scheme, the plurality of groove-shaped purlins which are parallel to each other are laid in the vertical direction above the upper chord of the roof truss, the photovoltaic modules are fixed on the groove-shaped purlins, the micro inverter is arranged in the middle of a Chinese character tian shape formed by the four photovoltaic modules, and the micro inverter is fixed on the purlins close to the Chinese character tian shape middle by screws. The area occupied by the micro inverter is reduced, the laying area of the photovoltaic module is increased, meanwhile, the wire connection length of the photovoltaic module and the micro inverter is shortened to the greatest extent, the wire loss is reduced, and the power generation cost is saved.

The present invention may be further configured in a preferred embodiment as: the ridge cover plate is arranged in an arc shape, and two ends of the ridge cover plate are detachably fixed on the photovoltaic assembly through rivets respectively.

Through the technical scheme, the ridge cover plate which is detachably fixed is arranged at the ridge, and the ridge cover plate is detachably fixed on the photovoltaic module through the rivet, so that the micro inverter is not corroded by sunlight or rainwater, the micro inverter is effectively protected, and the service life of the micro inverter is prolonged.

The present invention may be further configured in a preferred embodiment as: the photovoltaic module adopts a steel plate as a back plate.

Through above-mentioned technical scheme, the structural strength of steel sheet is high, possesses the installation function, can replace various steel tile, has reduced the bearing burden in house.

The present invention may be further configured in a preferred embodiment as: the long edge of the photovoltaic module steel plate is of a groove-shaped folding edge structure.

Through the technical scheme, the two adjacent assemblies are in quick lap joint through the groove-shaped folding edge structure, and the mounting efficiency of the photovoltaic assembly is improved.

To sum up, the utility model discloses a following at least one useful technological effect:

1. replace various steel tile with photovoltaic module, with photovoltaic module direct mount and roof truss last quarter, reduced house bearing burden for the security performance in house obtains promoting.

2. The micro inverter is installed at the back of the center of four photovoltaic modules arranged in a shape like a Chinese character tian, so that the occupied area of the micro inverter is reduced, the laying area of the photovoltaic modules is increased, the utilization rate of light energy is increased, meanwhile, the wire connection length of the photovoltaic modules and the micro inverter is shortened to the maximum extent, the wire loss is reduced, and the power generation cost is saved.

3. The detachable ridge cover plate is arranged at the ridge of the house, so that the ridge cover plate is not corroded by sunlight or rainwater, the micro inverter is effectively protected, and the service life of the micro inverter is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of a micro-inverter mounting structure.

Fig. 3 is a schematic diagram of a micro-inverter connection terminal.

Reference numerals: 1. stringing the roof truss; 2. slot type sandal wood; 3. a photovoltaic module; 4. a micro inverter; 41. a screw; 5. a ridge cover plate; 6. and a connection terminal.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a mounting structure of BIPV photovoltaic roof back micro inverter, including roof truss upper chord 1, a plurality of cell type sandalwood strips 2 that are parallel to each other have been laid perpendicularly to roof truss upper chord 1's top, and photovoltaic module 3 has been laid to the one side that cell type sandalwood strip 2 kept away from roof truss upper chord. Replace various steel tile with photovoltaic module 3, with photovoltaic module 3 direct mount and roof truss upper chord 1, reduced house bearing burden for the security performance in house obtains promoting.

The micro inverter 4 is arranged in the center of a field shape formed by the four photovoltaic modules 3 and is fixed on the groove-shaped purline 2 close to the center of the field shape by screws 41. The area occupied by the micro inverter 4 is reduced, the laying area of the photovoltaic module 3 is increased, the utilization rate of light energy is increased, meanwhile, the wire connection length of the photovoltaic module 3 and the micro inverter 4 is shortened to the maximum extent, the wire loss is reduced, and the power generation cost is saved.

Ridge department sets up and to dismantle and be fixed with ridge apron 5, ridge apron 5 can dismantle through the rivet and be fixed in on the photovoltaic module 3, make micro-inverter 4 does not receive the erosion of sunshine or rainwater, and the effectual micro-inverter 4 that has protected to micro-inverter 4's life has been prolonged.

Referring to fig. 2, four photovoltaic modules 3 are spliced into a shape like a Chinese character tian, and a micro inverter 4 is arranged in the center of the four photovoltaic modules 3. Referring to fig. 3, 8 connection terminals are arranged on the micro inverter 4, the connection terminals are respectively connected with the four photovoltaic modules 3 through wires, the connectors and the wires of the photovoltaic modules 3 are arranged on the back of the photovoltaic modules 3, and the length range of the wires is 300-1800 mm.

Because the positive and negative poles on the four photovoltaic modules 3 are different from the port of the micro inverter 4 in length, the shortest wiring length is realized in order to optimize the length of the wires, and the photovoltaic modules with different wire lengths can be placed. And according to different lead lengths, the photovoltaic module is divided into an A-type photovoltaic module and a B-type photovoltaic module. The length of the positive electrode lead of the A-type photovoltaic module is greater than that of the negative electrode lead, the length of the negative electrode lead of the B-type photovoltaic module is greater than that of the positive electrode lead, and the A-type photovoltaic module is connected to ports 1 and 4 of the inverter. And the lead of the B-type photovoltaic module is connected to 5 and 8 ports of the inverter. So set up furthest and reduced photovoltaic module connecting wire port to miniature inverter binding post's distance, reduce connecting wire's length, reduced the line loss, practiced thrift the cost of electricity generation simultaneously.

Further, referring to fig. 2, the third step is an a-type photovoltaic module, the third step is that the length of the positive lead is greater than that of the negative lead, the fourth step is a B-type photovoltaic module, and the fourth step is that the length of the positive lead is less than that of the negative lead.

The implementation principle of the embodiment is as follows: a layer of groove-shaped purlines is laid above the upper chord of the roof truss, the photovoltaic modules are fixed on the groove-shaped purlines, and the micro inverter is arranged in the center of a Chinese character tian shape formed by four photovoltaic modules and is fixed on the purlines close to the center of the Chinese character tian shape by screws. The laying area of the photovoltaic module is increased, meanwhile, the wire connection length of the photovoltaic module and the micro inverter is shortened to the maximum extent, the wire loss is reduced, and the power generation cost is saved. The ridge cover plate is detachably fixed on the photovoltaic assembly through the rivet, so that the micro inverter is not corroded by sunlight or rainwater, the micro inverter is effectively protected, and the service life of the micro inverter is prolonged.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a BIPV photovoltaic roof back micro-inverter's mounting structure which characterized in that: the photovoltaic roof truss structure comprises a roof truss upper chord, a plurality of groove-shaped sandalwood strips parallel to each other are vertically paved above the roof truss upper chord, the groove-shaped sandalwood strips are far away from one surface of the roof truss upper chord, a photovoltaic module is paved on one surface of the roof truss upper chord, a micro inverter is detachably fixed below the photovoltaic module, and a roof ridge cover plate is detachably fixed at the roof ridge.

2. The mounting structure of a BIPV photovoltaic rooftop back microinverter according to claim 1, wherein: the micro inverter is installed in the center of the back of four photovoltaic modules which are arranged in a shape like a Chinese character tian.

3. The mounting structure of a BIPV photovoltaic rooftop back microinverter according to claim 2, wherein: the micro inverter is fixed on the groove-shaped purline close to the center of the shape of the Chinese character tian.

4. The mounting structure of a BIPV photovoltaic rooftop back microinverter according to claim 1, wherein: the ridge cover plate is arranged in an arc shape, and two ends of the ridge cover plate are detachably fixed on the photovoltaic assembly through rivets respectively.

5. The mounting structure of a BIPV photovoltaic rooftop back microinverter according to claim 1, wherein: the photovoltaic module adopts a steel plate as a back plate.

6. The mounting structure of a BIPV photovoltaic rooftop back microinverter according to claim 5, wherein: the long edge of the photovoltaic module steel plate is of a groove-shaped folding edge structure.