Mounting structure for roof photovoltaic modules

Abstract

This utility model discloses an installation structure for rooftop photovoltaic modules, including corrugated steel sheets, purlins, longitudinal drainage channels, crossbeams, photovoltaic modules mounted on the crossbeams, a central pressure block pressing against adjacent photovoltaic modules, and a cover plate. The central pressure block includes two pressing parts, a body part, and two protrusions. The two protrusions protrude along the height direction of the central pressure block and are located on the body part. Each protrusion has a first latching part, and the two first latching parts are arranged opposite each other. Each pressing part has a second latching part, and the two second latching parts are arranged back to back. The cover plate includes a top, two sides, and two extensions located between the two sides. Each extension has a first slot, and each side has a second slot. The first latching parts engage with the first slots, and the second latching parts engage with the second slots. This design provides dust and water protection, enhancing the sealing performance of the entire installation structure.

Description

Technical Field

[0001] This utility model relates to an installation structure for rooftop photovoltaic modules, belonging to the field of photovoltaic technology. Background Technology

[0002] Currently, in the photovoltaic field, photovoltaic modules are typically fixed to crossarms using clamps, which in turn are fixed to water channels, which are then fixed to purlins. The purlins then hold the corrugated steel roofing sheets in place using clamps, thus securing the photovoltaic modules to the roofing sheets. Since these installations are often outdoors, and the clamps are generally fixed to the crossarms using bolts, the waterproofing performance at the connection between the clamps and bolts often affects the lifespan of the photovoltaic modules on the corrugated steel roofing sheets. Utility Model Content

[0003] The purpose of this invention is to provide an installation structure for rooftop photovoltaic modules to improve waterproofing performance and thus extend service life.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An installation structure for a rooftop photovoltaic module includes a corrugated steel sheet, purlins disposed on the corrugated steel sheet, longitudinal water guide channels disposed on the purlins, crossbeams disposed on the longitudinal water guide channels, photovoltaic modules disposed on the crossbeams, intermediate pressure blocks pressing against adjacent photovoltaic modules, and a cover plate covering the intermediate pressure block. The intermediate pressure block includes two pressing parts, a body part connecting the two pressing parts, and two protrusions. The two protrusions protrude along the height direction of the intermediate pressure block and are disposed on the body part. Each protrusion has a first latching part, and the two first latching parts are disposed opposite to each other. Each pressing part has a second latching part, and the two second latching parts are disposed back to back. The cover plate includes a top, two sides connected to both sides of the top, and two extensions disposed between the two sides and connected to the top. Each of the two extensions has a first slot, and each of the two sides has a second slot. The first latching parts are engaged with the first slots, and the second latching parts are engaged with the second slots.

[0006] As a further improvement of the present invention, the top includes a flat portion and two first inclined portions connected to both sides of the flat portion. The two sides are connected to the two first inclined portions, defining a first direction. The first direction is parallel to the height direction of the cover plate. The first direction is the extension direction of the extension portion. Along the first direction, the first inclined portion extends out of the extension portion.

[0007] As a further improvement of the present invention, the straight portion includes a first straight portion and two second straight portions. The first straight portion is located between the two extended portions, and the two second straight portions are located between the two extended portions and the two first inclined portions. The thickness of the first straight portion is greater than the thickness of each of the second straight portions.

[0008] As a further improvement of the present invention, the first latching part includes a first guide surface, which is used to guide the first latching part to snap into the first slot. The second latching part includes a second guide surface, which is used to guide the first latching part to snap into the second slot. Both the first guide surface and the second guide surface are inclined surfaces.

[0009] As a further improvement of the present invention, each of the protrusions is provided with an inclined surface, and the two inclined surfaces are arranged opposite to each other.

[0010] As a further improvement of the present invention, the photovoltaic module includes a frame and a photovoltaic panel disposed on the frame, and the crossarm is provided with a first protrusion for supporting the frame, the width of the first protrusion being equal to the width of the body portion of the intermediate pressure block.

[0011] As a further improvement of the present invention, the frame includes a first flat portion, a second flat portion, a third flat portion, a first side portion connecting the first flat portion and the second flat portion, and a second side portion connecting the second flat portion and the third flat portion. The first flat portion, the second flat portion, and the first side portion form an installation groove for receiving the photovoltaic panel. The crossbeam includes a support portion, two bent portions connected to both sides of the support portion, and two connecting portions connected to both sides of the two bent portions. The connecting portions are connected to the longitudinal water guide groove by a second bolt. The first boss protrudes from the support portion. The third flat portion at least partially abuts against the support portion. The width of the third flat portion is greater than the width of the second flat portion. The width of the support portion is not less than the sum of the width of the body portion of the intermediate pressure block and the width of the two second flat portions.

[0012] As a further improvement of this utility model, the intermediate pressure block is connected to the crossarm by a second bolt, and a plastic part is provided between the body of the intermediate pressure block and the crossarm, and the second bolt passes through the plastic part.

[0013] As a further improvement of this utility model, it also includes a transverse water guide channel, which is connected to the crossbeam and arranged alternately with the longitudinal water guide channel.

[0014] As a further improvement of the present invention, the purlin and the corrugated steel sheet are connected by a clamp. The clamp includes a first clamping part and a second clamping part. The first clamping part and the second clamping part have clamping spaces for clamping the corrugated steel sheet. The first clamping part is provided with a shaft part, and the second clamping part is provided with a long groove. The shaft part is rotatably disposed in the long groove. The first clamping part and the second clamping part are connected by a third bolt, and the second clamping part is connected to the purlin by a fourth bolt.

[0015] This utility model provides dust and water protection by connecting the cover plate and the intermediate pressure block, thereby enhancing the sealing performance of the entire installation structure. The first snap-fit ​​part of the intermediate pressure block engages with the first slot of the cover plate, and the second snap-fit ​​part of the intermediate pressure block engages with the second slot of the cover plate, thus achieving a quick and stable connection between the cover plate and the intermediate pressure block. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation structure of the roof photovoltaic module of this utility model;

[0017] Figure 2 yes Figure 1 Enlarged view of region A in the middle;

[0018] Figure 3 yes Figure 2 Schematic diagram of crossarm, intermediate pressure block and photovoltaic module;

[0019] Figure 4 yes Figure 2 Exploded view of the middle cover plate and the middle pressure block;

[0020] Figure 5 yes Figure 3 Cross-sectional view of the middle crossarm;

[0021] Figure 6 yes Figure 1 Enlarged schematic diagram of region B in the middle. Detailed Implementation

[0022] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0023] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” used in the specification and claims of this invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0024] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish the features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this utility model are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. In this utility model, the word "several" means two or more.

[0025] Please refer to Figures 1 to 6 As shown, this utility model discloses an installation structure for rooftop photovoltaic modules, including a corrugated steel sheet 1, purlins 2 installed on the corrugated steel sheet 1, longitudinal water guide channels 3 installed on the purlins 2, crossbeams 4 installed on the longitudinal water guide channels 3, photovoltaic modules 5 installed on the crossbeams 4, intermediate pressure blocks 6 pressing against adjacent photovoltaic modules 5, and a cover plate 7 covering the intermediate pressure blocks 6. This utility model, by connecting the cover plate 7 to the intermediate pressure blocks 6, provides dust and water protection, enhancing the sealing performance of the entire installation structure.

[0026] The cross-section of the longitudinal water guide channel 3 is approximately "M" shaped. For details, please refer to... Figure 2 As shown, the longitudinal water guide channel 3 includes a main body 31, two second inclined portions 32 disposed on both sides of the main body 31, two flat portions 33 connected to both sides of the two second inclined portions 32, and two fixing portions 34 extending downward from the two flat portions 33. The two fixing portions 34 are fixed to the top of the purlin 2 by screws 500.

[0027] Please refer to Figure 3 and Figure 5As shown, the crossarm 4 includes a support portion 41, two bent portions 42 connected to both sides of the support portion 41, and two connecting portions 43 connected to both sides of the two bent portions 42. The connecting portions 43 are connected to the fixing portion 34 of the longitudinal water guide channel 3 by a first bolt 100. In some embodiments, the crossarm 4 is provided with a first boss 411 for supporting the photovoltaic module 5. The first boss 411 plays a positioning role in the installation of the photovoltaic module 5, which helps to keep the spacing between two adjacent photovoltaic modules 5 equal. Specifically, the first boss 411 protrudes from the support portion 41.

[0028] Please refer to Figure 3 As shown, the photovoltaic module 5 includes a frame 52 and a photovoltaic panel 51 disposed on the frame 52. The frame 52 abuts against a first protrusion 411. Specifically, the frame 52 includes a first flat portion 521, a second flat portion 522, a third flat portion 523, a first side portion 524 connecting the first flat portion 521 and the second flat portion 522, and a second side portion 525 connecting the second flat portion 522 and the third flat portion 523. The first flat portion 521, the second flat portion 522, and the first side portion 524 form a mounting groove 520 for receiving the photovoltaic panel 51, and the third flat portion 523 at least partially abuts against the support portion 41 of the crossarm 4. The width of the third flat portion 523 is greater than the width of the second flat portion 522, and the width of the support portion 41 is not less than the sum of the width of the body portion 61 of the intermediate pressure block 6 and the width of the two second flat portions 522. This arrangement results in a larger contact area between the frame 52 and the support portion 41, which is beneficial for the frame 52 to stably support the photovoltaic panel 51.

[0029] Please refer to Figure 3 As shown, the intermediate pressure block 6 includes two pressing parts 62, a body part 61 connecting the two pressing parts 62, and two protrusions 63. Since the width of the first protrusion 411 is equal to the distance between two adjacent photovoltaic modules 5, by setting the width of the first protrusion 411 to be equal to the width of the body part 61 of the intermediate pressure block 6, the distance between two adjacent photovoltaic modules 5 is equal to the width of the body part 61, causing the two sides of the body part 61 to abut against the two adjacent frame sides 52, thus ensuring stable assembly of the intermediate pressure block 6 and the photovoltaic modules 5. The two pressing parts 62 respectively press against the frame sides 52 of the two adjacent photovoltaic modules 5.

[0030] Please refer to Figure 2 As shown, the intermediate pressure block 6 and the crossarm 4 are connected by a second bolt 200. A plastic part 8 is provided between the body part 61 of the intermediate pressure block 6 and the crossarm 4, and the second bolt 200 passes through the plastic part 8. The plastic part 8 and the second bolt 200 are tightly connected, reducing the risk of leakage at the opening and playing a sealing and protective role.

[0031] Please refer to Figure 3As shown, two protrusions 63 protrude from the body portion 61 along the height direction of the middle pressure block 6. Each protrusion 63 has a first latching part 631, and the two first latching parts 631 are arranged opposite each other. Each pressure part 62 has a second latching part 621, and the two second latching parts 621 are arranged back to back. Each protrusion 63 has a bevel 632, and the two bevels 632 are arranged opposite each other. By cutting off a portion to form the bevel 632, it serves to guide and avoid the insertion of the cover plate 7.

[0032] Please refer to Figure 4 As shown, the cover plate 7 includes a top 71, two sides 72 connected to both sides of the top 71, and two extensions 73 located between the two sides 72 and connected to the top 71. Each extension 73 has a first slot 731, and each side 72 has a second slot 721. A first latching part 631 engages with the first slot 731, and a second latching part 621 engages with the second slot 721, achieving a quick and stable connection between the cover plate 7 and the middle pressure block 6. By providing slots on the cover plate 7 and latching parts on the middle pressure block 6, it is easier to manufacture. Compared to providing latching parts on the cover plate 7, this invention provides slots on the cover plate 7 without increasing the thickness of the extensions 73 and sides 72, giving the extensions 73 and sides 72 better elasticity. Specifically, the first latching part 631 includes a first guide surface 6311, which guides the first latching part 631 into the first slot 731. The second latching part 621 includes a second guide surface 6211, which guides the first latching part 631 into the second slot 721. Both the first guide surface 6311 and the second guide surface 6211 are inclined surfaces.

[0033] Please refer to Figure 4 As shown, the top 71 includes a flat portion 711 and two first inclined portions 712 connected to both sides of the flat portion 711. Two side portions 72 are connected to the two first inclined portions 712. A first direction H is defined, which is parallel to the height direction of the cover plate 7. The first direction H is the extension direction of the extension portion 73. Along the first direction H, the first inclined portions 712 extend out of the extension portion 73. Since the side portions 72 are connected to the first inclined portions 712, the side portions 72 extend downward relative to the extension portion 73, so that the side portions 72 and the extension portion 73 can be adapted to the latching portions at different positions. If the extension portion 73 is too long, the setting position of the first latching portion 631 needs to be moved downward. Compared with the first latching groove 731 and the first latching portion 631 in a deeper position, the position of the first latching portion 631 provided by this utility model is more convenient for the extension portion 73 to be latched, and also convenient for the two to be disassembled.

[0034] Please refer to Figure 4As shown, the straight portion 711 includes a first straight portion 7111 and two second straight portions 7112. The first straight portion 7111 is located between the two extensions 73, and the two second straight portions 7112 are located between the two extensions 73 and the two first inclined portions 712. The thickness of the first straight portion 7111 is greater than the thickness of each of the second straight portions 7112. By reducing the thickness of the second straight portions 7112, the elasticity of the edge portion 72 is increased, which facilitates the engagement of the edge portion 72 with the second snap-fit ​​portion 621 and also facilitates their disassembly.

[0035] Please refer to Figure 2 As shown, the installation structure of the roof photovoltaic module also includes a horizontal water guide channel 9, which is connected to the crossbeam 4 and arranged alternately with the vertical water guide channel 3.

[0036] Purlin 2 and corrugated steel sheet 1 are connected by clamp 10. For details, please refer to... Figure 6 As shown, the clamp 10 includes a first clamping part 101 and a second clamping part 102, with clamping spaces 103 for clamping the corrugated steel sheet 1. The first clamping part 101 has a shaft 1011, and the second clamping part 102 has an elongated groove 1021, with the shaft 1011 rotatably disposed in the elongated groove 1021. The first clamping part 101 and the second clamping part 102 are connected by a third bolt 300, and the second clamping part 102 is connected to the purlin 2 by a fourth bolt 400.

[0037] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of the present utility model should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. An installation structure for rooftop photovoltaic modules, characterized in that, It includes a color steel tile (1), a purlin (2) provided on the color steel tile (1), a longitudinal water guide channel (3) provided on the purlin (2), a crossbeam (4) provided on the longitudinal water guide channel (3), a photovoltaic module (5) provided on the crossbeam (4), a medium pressure block (6) pressing against the adjacent photovoltaic module (5), and a cover plate (7) covering the medium pressure block (6); The intermediate pressure block (6) includes two pressure parts (62), a body part (61) connecting the two pressure parts (62), and two protrusions (63). The two protrusions (63) protrude from the body part (61) along the height direction of the intermediate pressure block (6). Each protrusion (63) is provided with a first latching part (631), and the two first latching parts (631) are arranged opposite to each other. Each pressure part (62) is provided with a second latching part (621), and the two second latching parts (621) are arranged back to back. The cover plate (7) includes a top (71), two side portions (72) connected to both sides of the top (71), and two extension portions (73) located between the two side portions (72) and connected to the top (71). Each of the two extension portions (73) is provided with a first slot (731), and each of the two side portions (72) is provided with a second slot (721). The first latching portion (631) is engaged with the first slot (731), and the second latching portion (621) is engaged with the second slot (721).

2. The installation structure of the rooftop photovoltaic module as described in claim 1, characterized in that, The top (71) includes a flat portion (711) and two first inclined portions (712) connected to both sides of the flat portion (711). The two sides (72) are connected to the two first inclined portions (712). A first direction (H) is defined. The first direction (H) is parallel to the height direction of the cover plate (7). The first direction (H) is the extension direction of the extension portion (73). Along the first direction (H), the first inclined portion (712) extends out of the extension portion (73).

3. The installation structure for rooftop photovoltaic modules as described in claim 2, characterized in that, The straight portion (711) includes a first straight portion (7111) and two second straight portions (7112). The first straight portion (7111) is located between the two extension portions (73), and the two second straight portions (7112) are located between the two extension portions (73) and the two first inclined portions (712). The thickness of the first straight portion (7111) is greater than the thickness of each of the second straight portions (7112).

4. The installation structure for rooftop photovoltaic modules as described in any one of claims 1 to 3, characterized in that, The first latching part (631) includes a first guide surface (6311), which is used to guide the first latching part (631) into the first slot (731). The second latching part (621) includes a second guide surface (6211), which is used to guide the first latching part (631) into the second slot (721). Both the first guide surface (6311) and the second guide surface (6211) are inclined surfaces.

5. The installation structure of the rooftop photovoltaic module as described in claim 4, characterized in that, Each of the protrusions (63) is provided with a chamfer (632), and the two chamfers (632) are arranged opposite to each other.

6. The installation structure of the rooftop photovoltaic module as described in claim 1, characterized in that, The photovoltaic module (5) includes a frame (52) and a photovoltaic panel (51) disposed on the frame (52). The crossbeam (4) is provided with a first boss (411) for supporting the frame (52). The width of the first boss (411) is equal to the width of the body part (61) of the intermediate pressure block (6).

7. The installation structure for rooftop photovoltaic modules as described in claim 6, characterized in that, The frame (52) includes a first flat portion (521), a second flat portion (522), a third flat portion (523), a first side portion (524) connecting the first flat portion (521) and the second flat portion (522), and a second side portion (525) connecting the second flat portion (522) and the third flat portion (523). The first flat portion (521), the second flat portion (522), and the first side portion (524) form a mounting groove (520) for receiving the photovoltaic panel (51). The crossbeam (4) includes a support portion (41) and two bent portions connected to both sides of the support portion (41). (42) and two connecting parts (43) connected to both sides of the two bending parts (42), the connecting parts (43) being connected to the longitudinal water guide channel (3) by a first bolt (100), the first boss (411) protruding from the support part (41), the third flat part (523) at least partially abutting against the support part (41), the width of the third flat part (523) being greater than the width of the second flat part (522), and the width of the support part (41) being not less than the sum of the width of the body part (61) of the middle pressure block (6) and the width of the two second flat parts (522).

8. The installation structure for rooftop photovoltaic modules as described in claim 1 or 6, characterized in that, The intermediate pressure block (6) is connected to the crossarm (4) by a second bolt (200). A plastic part (8) is provided between the body part (61) of the intermediate pressure block (6) and the crossarm (4), and the second bolt (200) passes through the plastic part (8).

9. The installation structure of the rooftop photovoltaic module as described in claim 1, characterized in that, It also includes a transverse water guide channel (9), which is connected to the crossbeam (4) and is arranged alternately with the longitudinal water guide channel (3).

10. The installation structure for rooftop photovoltaic modules as described in claim 1, characterized in that, The purlin (2) and the corrugated steel sheet (1) are connected by a clamp (10). The clamp (10) includes a first clamping part (101) and a second clamping part (102). The first clamping part (101) and the second clamping part (102) have a clamping space (103) for clamping the corrugated steel sheet (1). The first clamping part (101) is provided with a shaft part (1011), and the second clamping part (102) is provided with a long groove (1021). The shaft part (1011) is rotatably disposed in the long groove (1021). The first clamping part (101) and the second clamping part (102) are connected by a third bolt (300), and the second clamping part (102) is connected to the purlin (2) by a fourth bolt (400).

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