CN217984913U

CN217984913U - Roofing photovoltaic system

Info

Publication number: CN217984913U
Application number: CN202221762064.1U
Authority: CN
Inventors: 吴秋军; 肖翠方; 吴方军
Original assignee: Hunan Gukede Building Technology Co ltd
Current assignee: Hunan Gukede Building Technology Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-12-06
Anticipated expiration: 2032-07-08

Abstract

The utility model discloses a roofing photovoltaic system, including a plurality of photovoltaic boards, be the rectangular array, fix on the roof, the photovoltaic board is the rectangular plate, long limit and the minor face of two sets of parallels including two sets of parallels, long limit and minor face are perpendicular, all be equipped with a plurality of minor face locking device between the minor face of a plurality of two adjacent photovoltaic boards, all be equipped with a plurality of long limit connecting device between the long limit of a plurality of two adjacent photovoltaic boards, the bottom of a plurality of photovoltaic boards all is equipped with a plurality of bottom sprag devices. The utility model provides a pair of roofing photovoltaic system, through minor face locking device, long limit connecting device, bottom sprag device, a plurality of photovoltaic boards of effective fixed mounting of ability, simple structure is compact, and it is convenient to install or dismantle, and is with low costs, has improved life and anti-seismic performance, can adapt to the photovoltaic board of various installation scenes and multiple specification.

Description

Roofing photovoltaic system

Technical Field

The utility model relates to a photovoltaic system especially relates to a roofing photovoltaic system.

Background

Traditional roofing photovoltaic system adopts steelframe or aluminum alloy support as the support between photovoltaic board and the roof boarding usually when the installation, toward still need installing additional the concrete buttress during the construction and being used for the fixed bolster, bearing capacity requirement to the roof is higher, and the support adopts bolt fixed connection usually, it is fixed to adopt sticky mode between photovoltaic board and the roof support, its erection construction is though quick, but dismantle and maintain all comparatively troublesome, and anti-seismic performance is general, the photovoltaic board drenches through the sun, its viscose drops easily, consequently, the life is shorter, the support is mostly the photovoltaic roof installation scene of the various sizes of adaptation that the standard component can not be fine.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned not enough of present roofing photovoltaic system existence, the utility model provides a roofing photovoltaic system can a plurality of photovoltaic boards of effective fixed mounting, and simple structure is compact, and it is convenient to install or dismantle, and is with low costs, has improved life and anti-seismic performance, can adapt to the photovoltaic board of various installation scenes and multiple specification.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

the utility model provides a roofing photovoltaic system, includes a plurality of photovoltaic boards, is the rectangle array, fixes on the roof, the photovoltaic board is the rectangular plate, including the long limit of two sets of parallels and the minor face of two sets of parallels, long limit and minor face are perpendicular, roofing photovoltaic system still includes a plurality of minor face locking device, a plurality of long limit connecting device, a plurality of bottom sprag device, minor face locking device is connected with the minor face of two adjacent photovoltaic boards respectively, long limit connecting device is connected with the long limit of two adjacent photovoltaic boards respectively, bottom sprag device is connected with the bottom of photovoltaic board.

According to the utility model discloses an aspect, minor face locking device includes the connecting piece, be equipped with the crotch in the connecting piece, crotch one side is equipped with the support, the support both sides are equipped with terminal backup pad respectively, terminal backup pad one side is equipped with first purlin, the support is fixed with first purlin, first purlin is fixed with the roof, the connecting piece is installed in the terminal backup pad, the connecting piece both sides link respectively has the minor face of two adjacent photovoltaic boards.

According to the utility model discloses an aspect, the terminal backup pad includes left end board and right end board, establishes respectively in the support both sides, and is fixed with first purlin, left side end board includes left hook plate, right side end board includes right hook plate, left side hook plate and right hook plate all are the J-shaped of handstand.

According to one aspect of the utility model, the bracket is inverted T-shaped, and comprises a fixed plate and a first purline, wherein the fixed plate is fixed with a hook-shaped piece, is inverted J-shaped and is arranged between a left hook plate and a right hook plate; the crotch includes cardboard and coupling hook, cardboard and connecting piece joint, the coupling hook is J-shaped, and one end is fixed with the cardboard, and the other end in proper order respectively with left hook plate, hook-shaped spare, right hook plate joint.

According to the utility model discloses an aspect, long limit connecting device includes the clamp plate, be equipped with on the clamp plate and compress tightly the piece, it is equipped with the fagging respectively to compress tightly a both sides, is connected with the roof, the clamp plate is installed on the fagging, the long limit of photovoltaic board is installed between clamp plate and fagging.

According to the utility model discloses an aspect, the fagging includes the roof, fixes on the riser, riser one side is equipped with first diaphragm and second diaphragm, the second diaphragm is established in first diaphragm one side, the long limit of photovoltaic board is installed between clamp plate and first diaphragm.

According to the utility model discloses an aspect, second diaphragm one side is equipped with the second purlin, the second purlin is fixed with the roof, be equipped with the gusset plate between two sets of risers.

According to the utility model discloses an aspect, the bottom sprag device includes the frid, the frid both sides are equipped with the middle-end backup pad respectively, and the two is connected with the roof, install on the middle-end backup pad the bottom of photovoltaic board.

According to the utility model discloses an aspect, the frid includes C shaped plate, a word board and right angle board, other symmetry is equallyd divide to word board and right angle board and is established in C shaped plate both sides, word board one end is fixed with the right angle board, the other end is fixed with the C shaped plate, right angle board one side is equipped with the third purlin, the third purlin is fixed with the roof.

According to the utility model discloses an aspect, the middle-end backup pad includes the mainboard, bends the board, hook-like board, it equally divides respectively the symmetry to establish in the mainboard both sides to bend the board and hook-like board, it is fixed with the mainboard, the other end and hook-like board to bend board one end, the mainboard is installed on the third purlin, the board of bending is installed on a word board, hook-like board and C shaped plate joint, the bottom of photovoltaic board is installed on hook-like board and C shaped plate.

The utility model discloses the advantage of implementing:

the photovoltaic panels are arranged on the roof in a rectangular array mode, and the bottoms of the photovoltaic panels are supported through the bottom supporting devices; locking the short edges of two adjacent photovoltaic panels by a plurality of short edge locking devices; and the long edges of the two adjacent photovoltaic panels are locked through a plurality of long edge connecting devices. The system can effectively fix and install the photovoltaic panels, has simple and compact structure, convenient installation or disassembly and low cost, improves the service life and the anti-seismic performance, and can adapt to various installation scenes and photovoltaic panels of various specifications.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural arrangement diagram of a short edge locking device of a roofing photovoltaic system according to the present invention;

fig. 2 is a schematic structural layout of a long-side connecting device of a roofing photovoltaic system according to the present invention;

fig. 3 is a schematic structural layout diagram of a bottom support device of a roof photovoltaic system.

The names corresponding to the numbers in the figure are as follows:

1. a photovoltaic panel; 2. a short-edge locking device; 21. a connecting member; 211. a top panel; 212. an arc-shaped plate; 213. a flat plate; 214. a straight plate; 215. a bottom panel; 22. hooking; 221. clamping a plate; 222. a connecting hook; 23. a support; 231. a fixing plate; 232. a hook member; 24. a terminal support plate; 241. a left end plate; 2411. a left hook plate; 2412. a left bearing plate; 2413. a left transition plate; 2414. a left bottom plate; 242. a right tip plate; 2421. a right hook plate; 2422. a right bearing plate; 2423. a right transition plate; 2424. a right base plate; 25. a first purlin; 3. a long side connection device; 31. pressing a plate; 32. a pressing member; 321. a bolt; 322. a gasket; 323. a locking plate; 324. a nut; 33. a supporting plate; 331. a top plate; 332. a vertical plate; 333. a first transverse plate; 334. a second transverse plate; 335. a reinforcing plate; 336. a backing plate; 34. a second purlin; 4. a bottom support means; 41. a groove plate; 411. a C-shaped plate; 4111. a horizontal plate; 4112. a vertical plate; 4113. a support plate; 412. a line plate; 413. a right-angle plate; 42. a middle support plate; 421. a main board; 422. bending the plate; 4221. a sloping plate; 4222. an L-shaped plate; 423. a hook plate; 43. a third purlin.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, fig. 2, fig. 3, a roofing photovoltaic system includes a plurality of photovoltaic boards 1, is the rectangle array, fixes on the roof, photovoltaic board 1 is the rectangular plate, including the long limit of two sets of parallels and the minor face of two sets of parallels, long limit and minor face are perpendicular, roofing photovoltaic system still includes a plurality of minor face locking device 2, a plurality of long limit connecting device 3, a plurality of bottom sprag device 4, minor face locking device 2 is connected with the minor face of two adjacent photovoltaic boards 1 respectively, and a plurality of minor face locking device 2 separate evenly distributed each other between the minor face of two adjacent photovoltaic boards 1, long limit connecting device 3 is connected with the long limit of two adjacent photovoltaic boards 1 respectively, and a plurality of long limit connecting device 3 separate evenly distributed each other between the long limit of two adjacent photovoltaic boards 1, bottom sprag device 4 is connected with the bottom of photovoltaic boards 1. The system can effectively fix and install the photovoltaic panels 1, is simple and compact in structure, convenient to install or disassemble and low in cost, prolongs the service life and improves the anti-seismic performance, and can adapt to various installation scenes and photovoltaic panels 1 of various specifications.

In practical application, the short-edge locking device 2 comprises a connecting piece 21, a hook 22 is arranged in the connecting piece 21, a support 23 is arranged on one side of the hook 22, end supporting plates 24 are arranged on two sides of the support 23 respectively, a first purline 25 is arranged on one side of each end supporting plate 24, the support 23 is fixed with the first purline 25, the first purline 25 is fixed with a roof, the connecting piece 21 is arranged on the end supporting plates 24, and the two sides of the connecting piece 21 are respectively connected with the short edges of the two adjacent photovoltaic panels 1. The device is used for connecting and locking two adjacent photovoltaic panels 1.

In practical applications, the end support plate 24 includes a left end plate 241 and a right end plate 242 respectively disposed at two sides of the bracket 23 and fixed to the first purline 25, the left end plate 241 includes a left hook plate 2411, the right end plate 242 includes a right hook plate 2421, and both the left hook plate 2411 and the right hook plate 2421 are in an inverted J shape. The left end plate 241 further comprises a left base plate 2414, the left base plate 2414 is connected with a left transition plate 2413, the left transition plate 2413 is connected with a left bearing plate 2412, and the left bearing plate 2412 is connected with a left hook plate 2411; the right end plate 242 comprises a right bottom plate 2424, a right transition plate 2423 is connected to the right bottom plate 2424, a right bearing plate 2422 is connected to the right transition plate 2423, and the right bearing plate 2422 is connected with a right hook plate 2421; the left base plate 2414 and the left bearing plate 2412 are arranged in parallel, the left transition plate 2413 is obliquely arranged between the left base plate 2414 and the left bearing plate 2412 and is uniformly arranged at an obtuse angle with the left base plate 2414 and the left bearing plate 2412, the left base plate 2414, the left transition plate 2413 and the left bearing plate 2412 are respectively consistent with the right base plate 2424, the right transition plate 2423 and the right bearing plate 2422 in structure and are symmetrically arranged relative to the bracket 23, the shapes of the left base plate 2414 and the right bearing plate 2424 are square, and the left base plate 2414 and the right base plate 2424 are both fixed with purlins. The left hook plate 2411 and the right hook plate 2421 are arranged in an equidistant mode from large to small, a certain distance is reserved between the left hook plate 2411 and the right hook plate 2421 for installing the hook-shaped part 232, and the left hook plate and the right hook plate can be formed by bending one end of a square plate twice. The left bottom plate 2414, the left transition plate 2413, the left bearing plate 2412 and the left hook plate 2411 of the left end plate 241 can be formed by bending a whole square plate for multiple times and integrally forming or welding and combining the whole square plate with each other, and the right end plate 242 is manufactured and formed in the same way. The device is used for supporting the connecting piece 21, and is simple in structure and easy to manufacture.

In practical application, the bracket 23 is inverted t-shaped, and comprises a fixing plate fixed with the first purline 25, wherein a hook-shaped element 232 is welded and fixed on the fixing plate, and is inverted J-shaped and arranged between the left hook plate 2411 and the right hook plate 2421; the hook 22 comprises a clamping plate and a connecting hook 222, the clamping plate is clamped with the connecting piece 21, the connecting hook 222 is J-shaped, one end of the connecting hook is fixed with the clamping plate, and the other end of the connecting hook is sequentially clamped with the left hook plate 2411, the hook-shaped piece 232 and the right hook plate 2421. The fixing plate may be a square plate fixed to the first purline 25 by a fastener, and the hook 232 may be formed by bending one end of a square plate twice. The connecting hook 222 is in the shape of a fishhook and can be formed by bending or rolling one end of a square plate into a semicircle for the second time, the clamping plate is a square plate and is welded and fixed with the connecting hook 222, and the hook 22 can also be formed by bending a whole square plate for multiple times. The bracket 23 is in clamping fit with the hook 22 to lock the photovoltaic panel 1.

In practical application, long limit connecting device 3 includes clamp plate 31, be equipped with on clamp plate 31 and compress tightly 32, compress tightly 32 both sides respectively the symmetry and be equipped with 2 faggings 33, be connected with the roof, clamp plate 31 is installed on fagging 33, the long limit of photovoltaic board 1 is installed between clamp plate 31 and fagging 33. The pressing plate 31 is a square plate, the pressing piece 32 comprises a locking plate 323 and a fastener, the locking plate 323 is square and used for increasing a contact area and buffering physical contact, the fastener adopts a bolt 321, a washer 322 and a nut 324, the bolt 321 penetrates through the washer 322, the locking plate 323 and the pressing plate 31 in sequence and then is screwed up by the washer 322 and the nut 324 on one side of the threaded end of the bolt 321, the bolt is used for locking the pressing plate 31 and the top plate 331, the locking plate 323 is tightly attached to the bottom surface of the top plate 331 during locking, the pressing plate 31 is tightly attached to the top surface of the top plate 331 during locking, and the long edge of the photovoltaic panel 1 is locked between the pressing plate 31 and the first transverse plate 333.

In practical application, the supporting plate 33 comprises a top plate 331, the top plate is vertically welded and fixed on the top of the vertical plate 332, a first transverse plate 333 and a second transverse plate 334 are vertically welded and fixed on one side of the vertical plate 332, the second transverse plate 334 is arranged on one side of the first transverse plate 333, and the long edge of the photovoltaic panel 1 is installed between the pressing plate 31 and the first transverse plate 333. The top plate 331, the vertical plate 332, the first transverse plate 333 and the second transverse plate 334 are square, the vertical plate 332, the first transverse plate 333 and the second transverse plate 334 are combined to form an inverted F shape, and the top plate 331 and the vertical plate 332 are combined to form an inverted L shape. The 2 top plates 331 symmetrical with respect to the pressing member 32 are spaced apart from each other to allow the bolt 321 to pass through. The long side of the photovoltaic panel 1 is placed on the first cross plate 333.

In practical application, a second transverse plate 334 is fixed with a second purline 34 by a fastener, the second purline 34 is fixed with the roof, and a reinforcing plate 335 is arranged between the two sets of vertical plates 332. The reinforcing plate 335 is square, is arranged in the middle of the vertical plate 332 and below the head of the bolt 321, and is used for reinforcing 2 vertical plates 332 or the supporting plate 33. The first horizontal plate 333 may be additionally provided with a pad 336, which may be made of rubber material or steel material, for buffering the physical contact between the bottom of the long side of the photovoltaic panel 1 and the surface of the first horizontal plate 333.

In practical application, the bottom supporting device 4 comprises a groove plate 41, a middle supporting plate 42 is respectively arranged on two sides of the groove plate 41, the two are connected with a roof, and the bottom of the photovoltaic panel 1 is installed on the middle supporting plate 42. The trough plate 41 and the middle support plate 42 are in a plurality of numbers, and the two are uniformly distributed at intervals at the bottom of the photovoltaic panel 1 and in the direction of the long edge. The device is used for supporting, the independent 1 group of bottom supporting devices 4 are used for supporting at the bottom of the independent 1 photovoltaic panel 1, and the bottom of the photovoltaic panels 1 of the rectangular arrays are provided with the plurality of bottom supporting devices 4 for supporting.

In practical application, the groove plate 41 comprises a C-shaped plate 411, a straight plate 412 and a right-angle plate 413, the straight plate 412 and the right-angle plate 413 are respectively and symmetrically arranged on two sides of the C-shaped plate 411, one end of the straight plate 412 is fixed to the right-angle plate 413, the other end of the straight plate 412 is fixed to the C-shaped plate 411, a third purline 43 is arranged on one side of the right-angle plate 413, and the third purline 43 is fixed to a roof. The C-shaped plate 411 comprises a horizontal plate 4111, an upright plate 4112 and a support plate 4113, wherein the upright plate 4112 and the support plate 4113 are respectively symmetrically arranged on two sides of the horizontal plate 4111, two ends of the upright plate 4112 are respectively fixed to the horizontal plate 4111 and the support plate 4113 in a vertical welding manner, and the horizontal plate 4111 and the support plate 4113 are arranged in parallel. Horizontal plate 4111, upright plate 4112, extension plate 4113, a straight plate 412 are squarely, right angle board 413 is formed by 2 square plate vertical welding or is formed by 1 square plate vertical bending, also can be obtuse angle welding or bend. One end of the straight plate 412 is welded with the upright plate 4112, and the other end is welded with the right-angle plate 413.

In practical application, the middle-end supporting plate 42 comprises a main plate 421, a bent plate 422 and a hook-shaped plate 423, the bent plate 422 and the hook-shaped plate 423 are respectively and symmetrically arranged on two sides of the main plate 421, one end of the bent plate 422 is fixed to the main plate 421, the other end of the bent plate 422 is fixed to the hook-shaped plate 423, the main plate 421 is mounted on a third purline 43, the bent plate 422 is mounted on the linear plate 412, the hook-shaped plate 423 is clamped to the C-shaped plate 411, and the bottom of the photovoltaic panel 1 is mounted on the hook-shaped plate 423 and the C-shaped plate 411. Bend board 422 includes swash plate 4221, L shaped plate 4222 is formed or is bent perpendicularly by 1 square plate by the perpendicular welding of 2 square boards and forms, bend board 422 can be formed through bending many times by 1 square plate, the slope of swash plate 4221 is established between L shaped plate 4222, mainboard 421, and swash plate 4221 both ends are equallyd divide do not with the two welded fastening, respectively with the two obtuse angle that becomes. The main plate 421 and the inclined plate 4221 are both square. The hook-shaped plate 423 is in a fishhook shape and can be formed by bending or rolling one end of a square plate into a semicircle for the second time, and the hook-shaped plate 423 is clamped with the support plate 4113 and has a size corresponding to that of the support plate 4113. The middle support plate 42 may also be formed by bending two ends of 1 square plate for multiple times.

In practical application, the first purline 25, the second purline 34 and the third purline 43 have the same structure and are all made of Z/C-shaped steel.

The utility model discloses a theory of operation as follows:

the photovoltaic panels 1 are arranged on the roof in a rectangular array mode, namely the photovoltaic panels 1 are evenly arranged at intervals in the longitudinal direction, the photovoltaic panels 1 are evenly arranged at intervals in the transverse direction, the roof works through the bottom supporting device 4, namely the third purline 43 is fixed on the roof firstly, then the groove plates 41 and the middle-end supporting plates 42 are installed on the third purline 43, the groove plates 41 and the middle-end supporting plates 42 are clamped, namely the hook-shaped plates 423 are clamped with the C-shaped plates 411, and then the bottoms of the independent photovoltaic panels 1 are placed on the hook-shaped plates 423 and the C-shaped plates 411 to achieve the effect of supporting the photovoltaic panels 1; then, the short-edge locking device 2 works, namely, the first purline 25 is fixed on a roof, the bracket 23 and the tail end support plate 24 are fixed on the first purline 25, the connecting piece 21 is installed on the tail end support plate 24, the short edges of two adjacent photovoltaic panels 1 are respectively installed on two sides of the connecting piece 21, and then the short edges of the two adjacent photovoltaic panels 1 are clamped with the bracket 23 and the tail end support plate 24 through the hook 22, namely, the connecting hook 222 is clamped with the left hook plate 2411, the hook-shaped piece 232 and the right hook plate 2421, and the short edges of the two adjacent photovoltaic panels 1 are locked between the connecting piece 21 and the tail end support plate 24, so that the effect of locking the short edges of the two adjacent photovoltaic panels 1 is achieved; work through long limit connecting device 3 again, fix second purlin 34 on the roof promptly, then fix fagging 33 on second purlin 34, install the long limit of two adjacent photovoltaic board 1 respectively on the first diaphragm 333 of two sets of fagging 33, press plate 31 in the outside on the long limit of two adjacent photovoltaic board 1 or the roof 331 outside of fagging 33 again, rethread clamp member 32 locks clamp plate 31 and roof 331, be about to lock the long limit of two adjacent photovoltaic board 1 between clamp plate 31 and first diaphragm 333, reach the effect of the long limit of two adjacent photovoltaic board 1 of locking.

The utility model discloses the advantage of implementing:

the system can effectively fix and install the photovoltaic panels 1, is simple and compact in structure, convenient to install or disassemble and low in cost, prolongs the service life and improves the anti-seismic performance, and can adapt to various installation scenes and photovoltaic panels 1 of various specifications.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a roofing photovoltaic system, includes a plurality of photovoltaic boards (1), is the rectangle array, fixes on the roof, photovoltaic board (1) is the rectangular plate, including the long limit of two sets of parallels and the minor face of two sets of parallels, long limit and minor face are perpendicular, its characterized in that, roofing photovoltaic system still includes a plurality of minor face locking device (2), a plurality of long limit connecting device (3), a plurality of bottom sprag device (4), minor face locking device (2) are connected with the minor face of two adjacent photovoltaic boards (1) respectively, long limit connecting device (3) are connected with the long limit of two adjacent photovoltaic boards (1) respectively, bottom sprag device (4) are connected with the bottom of photovoltaic board (1).

2. The roofing photovoltaic system according to claim 1, characterized in that the short side locking device (2) comprises a connecting piece (21), a hook (22) is arranged in the connecting piece (21), a support (23) is arranged on one side of the hook (22), end support plates (24) are respectively arranged on two sides of the support (23), a first purline (25) is arranged on one side of each end support plate (24), the support (23) is fixed to the first purline (25), the first purline (25) is fixed to a roof, the connecting piece (21) is installed on the end support plates (24), and the two sides of the connecting piece (21) are respectively connected with the short sides of two adjacent photovoltaic panels (1).

3. The roofing photovoltaic system of claim 2, wherein the end support plate (24) comprises a left end plate (241) and a right end plate (242) respectively disposed on both sides of the bracket (23) and fixed to the first purlin (25), the left end plate (241) comprises a left hook plate (2411), the right end plate (242) comprises a right hook plate (2421), and the left hook plate (2411) and the right hook plate (2421) are both inverted J-shaped.

4. The roofing photovoltaic system according to claim 3, characterized in that said support (23) is inverted T-shaped and comprises a fixing plate (231) fixed to the first purline (25), said fixing plate (231) being provided with a hook (232) in inverted J-shape and arranged between the left hook plate (2411) and the right hook plate (2421); the hook (22) comprises a clamping plate (221) and a connecting hook (222), the clamping plate (221) is connected with the connecting piece (21) in a clamped mode, the connecting hook (222) is J-shaped, one end of the connecting hook is fixed to the clamping plate (221), and the other end of the connecting hook is connected with the left hook plate (2411), the hook-shaped piece (232) and the right hook plate (2421) in a clamped mode sequentially and respectively.

5. The roofing photovoltaic system according to claim 1, characterized in that the long edge connecting device (3) comprises a pressing plate (31), a pressing member (32) is arranged on the pressing plate (31), supporting plates (33) are respectively arranged on two sides of the pressing member (32) and connected with a roof, the pressing plate (31) is arranged on the supporting plates (33), and the long edge of the photovoltaic panel (1) is arranged between the pressing plate (31) and the supporting plates (33).

6. The roofing photovoltaic system according to claim 5, characterized in that the bracing plate (33) comprises a top plate (331) fixed to a vertical plate (332), the vertical plate (332) being provided on one side with a first transverse plate (333) and a second transverse plate (334), the second transverse plate (334) being provided on one side with the first transverse plate (333), the photovoltaic panel (1) being mounted with its long side between the clamping plate (31) and the first transverse plate (333).

7. The roofing photovoltaic system of claim 6, wherein a second purlin (34) is provided on one side of the second transverse plate (334), the second purlin (34) is fixed to the roof, and a reinforcing plate (335) is provided between the two sets of vertical plates (332).

8. Roofing photovoltaic system according to claim 1, characterized in that said bottom support means (4) comprise a channel plate (41), said channel plate (41) being provided on both sides with a central support plate (42), respectively, which is connected to the roof, said photovoltaic panel (1) being mounted at its bottom on said central support plate (42).

9. The roofing photovoltaic system of claim 8, characterized in that the groove plates (41) include a C-shaped plate (411), a straight plate (412) and a square plate (413), the straight plate (412) and the square plate (413) are respectively and symmetrically arranged on two sides of the C-shaped plate (411), one end of the straight plate (412) is fixed with the square plate (413), the other end of the straight plate is fixed with the C-shaped plate (411), a third purlin (43) is arranged on one side of the square plate (413), and the third purlin (43) is fixed with a roof.

10. The roofing photovoltaic system according to claim 9, wherein the middle support plate (42) comprises a main plate (421), a bent plate (422) and a hook plate (423), the bent plate (422) and the hook plate (423) are symmetrically arranged on two sides of the main plate (421), one end of the bent plate (422) is fixed to the main plate (421), the other end of the bent plate (422) is fixed to the hook plate (423), the main plate (421) is installed on a third purlin (43), the bent plate (422) is installed on a straight plate (412), the hook plate (423) is connected with a C-shaped plate (411) in a clamping mode, and the bottom of the photovoltaic panel (1) is installed on the hook plate (423) and the C-shaped plate (411).