Photovoltaic arrangement system and photovoltaic building integrated roof

Abstract

The utility model relates to a photovoltaic arrangement system and a photovoltaic building integrated roof, the photovoltaic arrangement system comprises a plurality of groups of photovoltaic units, each photovoltaic unit comprises a plurality of photovoltaic modules arranged along a first direction, and the plurality of groups of photovoltaic units are sequentially arranged along a second direction intersecting with the first direction; wherein in the first direction, the distance between the two ends of each group of photovoltaic units and the edge of the roof is smaller than the size of each photovoltaic assembly in the first direction; in the second direction, the distance between the two sides of each photovoltaic unit and the edge of the roof is smaller than the size of each photovoltaic assembly in the second direction, and the first direction intersects with the second direction. According to the arrangement mode, the roof proportion of the photovoltaic units is increased, the roof power generation area is maximized, the photovoltaic power generation device can adapt to various different roof types, the power generation area can be maximized on different types of roofs, and therefore the power generation capacity is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaics, in particular to a photovoltaic arrangement system and a building integrated photovoltaic roof. BACKGROUND

[0002] Under the background of "carbon neutralization" becoming a global proposition, responding to global climate change and reducing greenhouse gas emissions have become a global consensus. To achieve the goal of "carbon peak and carbon neutralization", energy is the main battlefield and electricity is the main force. Photovoltaic power generation, as a clean energy, does not produce pollutants and greenhouse gases such as carbon dioxide, and can effectively reduce carbon emissions and protect the environment and ecological system. China's building roof resources are abundant and widely distributed, and the photovoltaic roof system is an important method to achieve the double carbon goal.

[0003] With the vigorous development of the photovoltaic industry, photovoltaic tiles that integrate the functions of traditional tiles and photovoltaic power generation have appeared on the market. Photovoltaic tiles are laid on the roof, which not only maintains the original function of the building roof, but also increases the solar power generation function, achieving the effect of energy saving and emission reduction.

[0004] In related technologies, there is a lack of effective planning when arranging photovoltaic tiles on the roof, resulting in low roof utilization and difficulty in maximizing the roof power generation area. Practical new type content

[0005] Therefore, it is necessary to provide a photovoltaic arrangement system and a building integrated photovoltaic roof to solve the problems of lack of effective planning when arranging photovoltaic tiles on the roof, low roof utilization, and difficulty in maximizing the roof power generation area in related technologies.

[0006] The present application provides a photovoltaic arrangement system, comprising:

[0007] A plurality of groups of photovoltaic units, the photovoltaic unit comprising a plurality of photovoltaic components arranged along a first direction, and the plurality of groups of photovoltaic units are arranged along a second direction intersecting the first direction.

[0008] Wherein, along the first direction, the distance between the two ends of each group of photovoltaic units and the roof edge is less than the size of each photovoltaic component along the first direction; along the second direction, the distance between the two sides of the plurality of groups of photovoltaic units and the roof edge is less than the size of each photovoltaic component along the second direction.

[0009] In one embodiment, at least one group of photovoltaic units further comprises at least one auxiliary component, and the auxiliary component corresponds to the shadow area of the roof.

[0010] In one embodiment, the size of the photovoltaic assembly and the size of the auxiliary assembly are both A along the first direction; the size of the photovoltaic assembly and the size of the auxiliary assembly are both B along the second direction; wherein the first direction is perpendicular to the second direction, and the A is greater than the B.

[0011] In one embodiment, any two adjacent groups of the photovoltaic units are arranged staggered along the first direction, so that the auxiliary assembly of the groups of the photovoltaic units encloses an area covering the shadow area.

[0012] In one embodiment, the boundary line of the shadow area is located within the area enclosed by the auxiliary assembly.

[0013] Along the first direction, the distance from one side of the photovoltaic assembly adjacent to the auxiliary assembly to the boundary line is less than the A.

[0014] And / or, along the first direction, the distance between the adjacent photovoltaic units is less than the A.

[0015] In one embodiment, the photovoltaic assembly comprises photovoltaic tiles and adjustable photovoltaic panels, wherein the ratio of the area of all the adjustable photovoltaic panels to the sum of the areas of the groups of the photovoltaic units is less than 20%.

[0016] In one embodiment, each group of the photovoltaic units comprises a plurality of the photovoltaic tiles.

[0017] Or, each group of the photovoltaic units comprises a plurality of the photovoltaic tiles and at least one adjustable photovoltaic panel.

[0018] Or, each group of the photovoltaic units comprises a plurality of the photovoltaic tiles and at least one auxiliary assembly.

[0019] Or, each group of the photovoltaic units comprises a plurality of the photovoltaic tiles, at least one adjustable photovoltaic panel, and at least one auxiliary assembly.

[0020] In one embodiment, the adjustable photovoltaic panel comprises a light-transmitting photovoltaic panel.

[0021] In one embodiment, the A is between 880mm and 1800mm.

[0022] The B is between 350mm and 800mm.

[0023] In one embodiment, the photovoltaic arrangement system further comprises:

[0024] a plurality of water flow bars, each of the water flow bars extending along the second direction, and a plurality of the water flow bars being fixed along the first direction in sequence and at intervals;

[0025] a plurality of batten bars, each of the batten bars extending along the first direction, and a plurality of the batten bars being fixed along the second direction in sequence and at intervals;

[0026] a connecting member arranged between the photovoltaic unit and the corresponding batten bar, so as to lap and fix a plurality of the photovoltaic units on the batten bar.

[0027] The embodiment of the present application also provides a photovoltaic building integrated roof, comprising the photovoltaic arrangement system described in the above embodiment.

[0028] The photovoltaic arrangement system and the photovoltaic building integrated roof have the advantages that a plurality of photovoltaic units are arranged on the roof, the distance between the two ends of each group of photovoltaic units extending along the first direction and the roof edge is less than the length of each photovoltaic component in the first direction, and the distance between the two sides of a plurality of groups of photovoltaic units arranged along the second direction and the roof edge is less than the length of each photovoltaic component in the second direction, so that the roof area occupied by the photovoltaic units is increased, the roof power generation area is maximized, and the photovoltaic arrangement system can be applied to various types of roofs and maximize the power generation area on different types of roofs, thereby improving the power generation capacity. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof.

[0030] Figure 2 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof. Figure 1 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof.

[0031] Figure 3 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof. Figure 1 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof.

[0032] Figure 4 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof.

[0033] Figure 5 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof. Figure 4 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof.

[0034] Figure 6 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof. Figure 4 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof.

[0035] Figure 7 The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof. The photovoltaic arrangement system provided according to some embodiments of the present application is arranged on a roof.

[0036] Figure 8 for Figure 7 sectional view of the middle J-J.

[0037] Figure 9 for Figure 7 sectional view of the middle K-K.

[0038] Reference Signs:

[0039] 100, photovoltaic unit; 110, photovoltaic assembly; 111, photovoltaic tile; 112, adjustable photovoltaic panel; 120, auxiliary assembly;

[0040] 200, batten;

[0041] 300, connecting piece;

[0042] 400, shadow area; 401, boundary line. DETAILED DESCRIPTION

[0043] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is therefore contemplated that the present application not be limited to the embodiments set forth in the following description.

[0044] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0046] In the present application, unless specifically defined otherwise and limited, if there are terms such as "mount", "connect", "connect", "fix", etc., these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless specifically defined otherwise and limited, if there are terms such as "mount", "connect", "connect", "fix", etc., these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and are not the only embodiment.

[0049] In the related art, when arranging photovoltaic tiles, it is mostly simple and rough, and lacks reasonable layout design, thereby leading to low utilization rate of the roof and making it difficult to maximize the roof power generation area.

[0050] Based on the above problems, the present application provides a photovoltaic arrangement system, which is arranged reasonably to improve the utilization rate of the roof and maximize the roof power generation area. Referring to Figures 1-3 As shown in the figure, Figure 1 The photovoltaic arrangement system provided according to some embodiments of the present application is a schematic diagram of the arrangement of the roof, Figure 2 For Figure 1 The cross-sectional view of H-H in FIG. 1, Figure 3 For Figure 1 The cross-sectional view of I-I in FIG. 1. The photovoltaic arrangement system provided by the present application can include a plurality of photovoltaic units 100.

[0051] The photovoltaic unit 100 comprises a plurality of photovoltaic assemblies 110 arranged along a first direction, and a plurality of groups of the photovoltaic unit 100 arranged along a second direction intersecting the first direction; wherein along the first direction, the distance between the two ends of each group of the photovoltaic unit 100 and the roof edge is less than the size of each photovoltaic assembly 110 along the first direction; and along the second direction, the distance between the two sides of the plurality of groups of the photovoltaic unit 100 and the roof edge is less than the size of each photovoltaic assembly 110 along the second direction.

[0052] It can be understood that, in order to improve the installation and disassembly efficiency and the appearance of the roof, in the present example, the plurality of groups of the photovoltaic unit 100 are arranged along the second direction in turn, and each group of the photovoltaic unit 100 extends along the first direction. The extension length can be set according to the size of the roof, but it is necessary to ensure that the distance between the two ends of the group of the photovoltaic unit 100 and the roof edge is less than the size of one photovoltaic assembly 110 in the first direction. In addition, the distance between the side of the entire photovoltaic unit 100 and the roof edge in the second direction is less than the size of one photovoltaic assembly 110 in the second direction.

[0053] If the orthographic projection view of the roof is rectangular, the first direction can be defined as the length direction X of the roof, and the second direction can be defined as the width direction Y of the roof. Then, the plurality of groups of the photovoltaic unit 100 are arranged along the width direction of the roof, and each group of the photovoltaic unit 100 has the same extension length along the length direction of the roof. In other words, the shape of the entire photovoltaic unit 100 arranged on the rectangular roof is also rectangular. The distance between the side of the entire photovoltaic unit 100 and the left side of the roof is defined as L, and the distance between the side of the entire photovoltaic unit 100 and the right side of the roof is defined as L'. Both L and L' are less than the length A of the photovoltaic assembly 110. The distance between the side of the entire photovoltaic unit 100 and the front side of the roof is defined as C1, and the distance between the side of the entire photovoltaic unit 100 and the rear side of the roof is defined as C2. Both C1 and C2 are less than the width of the photovoltaic assembly 110. Of course, the side of the entire photovoltaic unit 100 can infinitely approach the edge of the roof, that is, L, L', C1 or C2 can infinitely approach zero.

[0054] If the orthographic projection view of the roof is trapezoidal, the first direction can be defined as the length direction of the roof, and the second direction can be defined as the height direction of the trapezoid. Then, the plurality of groups of the photovoltaic unit 100 are arranged along the height direction of the roof, and each group of the photovoltaic unit 100 has different extension lengths along the length direction of the roof. The extension length of each group of the photovoltaic unit 100 increases in turn from top to bottom. However, the distance between the two ends of each group of the photovoltaic assembly 110 and the roof edge is less than the length of the photovoltaic assembly 110, and the distance between the side of the entire photovoltaic unit 100 and the upper edge and the lower edge of the trapezoidal roof is less than the width of the photovoltaic assembly 110. Of course, the side of the entire photovoltaic assembly 110 can infinitely approach the edge of the roof, so as to ensure that the area of the photovoltaic unit 100 on the roof is maximized, thereby improving the power generation area and the power generation capacity of the roof.

[0055] Based on this, the photovoltaic arrangement system provided in this example can adjust the extension length of each group of photovoltaic units 100 and adjust the distance of the entire photovoltaic unit 100 from the roof edge, so as to adapt to different types of roofs and maximize the power generation area on different types of roofs, thereby improving the power generation.

[0056] It should be noted that the at least one group of photovoltaic units 100 includes not only photovoltaic components 110 but also some auxiliary components 120 (such as ordinary tiles) to deal with the case where the roof is blocked. The arrangement of the auxiliary components 120 and the photovoltaic components 110 can be understood with reference to the examples described below. In addition, the photovoltaic components 110 can all be photovoltaic tiles 111, or some can be photovoltaic tiles 111 and some can be non-photovoltaic tiles 111. The non-photovoltaic tiles 111 can meet other functional requirements of the roof, such as meeting the requirements of roof lighting or opening, and the non-photovoltaic tiles 111 also have power generation functions, which help to improve power generation.

[0057] In this application, by arranging multiple groups of photovoltaic units 100 on the roof, the distance of the two ends of each group of photovoltaic units 100 extending in the first direction from the roof edge is less than the length of the photovoltaic component 110 in the first direction, and the distance of the two sides of the multiple groups of photovoltaic units 100 arranged in the second direction from the roof edge is less than the length of the photovoltaic component 110 in the second direction. This arrangement increases the roof coverage ratio of the photovoltaic unit 100, maximizes the roof power generation area, and can adapt to multiple different types of roofs, and maximize the power generation area on different types of roofs, thereby improving the power generation.

[0058] In the following, the specific structure of the photovoltaic arrangement system provided in the embodiments of the present application will be described with reference to the accompanying drawings. Figure 1 - The specific structure of the photovoltaic arrangement system provided in the embodiments of the present application will be described with reference to the accompanying drawings. Figure 9 The specific structure of the photovoltaic arrangement system provided in the embodiments of the present application will be described with reference to the accompanying drawings.

[0059] The photovoltaic arrangement system described above is usually faced with the problem that part of the roof is blocked when it is applied to the roof, that is, there is a shadow area 400 (including an area with low irradiance) on the roof, and multiple groups of photovoltaic units 100 need to be reasonably arranged to avoid the shadow area 400 while ensuring that the laying area of the photovoltaic component 110 on the roof is maximized.

[0060] It should be noted that the confirmation of the shadow area 400 can be that the industry determines the shadow area 400 of the obstacle based on experience, or that the projection (shadow area 400) of the obstacle on the roof is determined based on the slope angle of the roof, the azimuth angle of the roof, the height of the obstacle, the solar azimuth angle, the solar elevation angle, etc., but is not limited in this way.

[0061] To effectively avoid the shadow area 400, the arrangement of the photovoltaic units 100 on the roof can be combined with the arrangement of the photovoltaic units 100 on the ground.Figure 4 - attached Figure 6 as shown, Figure 4 A schematic diagram of the arrangement of the photovoltaic arrangement system (including auxiliary components) provided according to some embodiments of the present application on a roof, Figure 5 as Figure 4 A cross-sectional view of L-L in FIG. 4B, Figure 6 as Figure 4 A cross-sectional view of M-M in FIG. 4B. In some embodiments, at least one group of photovoltaic units 100 further comprises at least one auxiliary component 120, which corresponds to the shadow area 400 of the roof.

[0062] Specifically, the auxiliary component 120 in the present example can be a common tile. In the shadow area 400 of the roof, a proper amount of common tiles can be arranged. Specifically, one or more common tiles can be arranged in the photovoltaic unit 100 corresponding to the shadow area 400, so as to cover the shadow area 400. Of course, in order to ensure the maximum power generation area of the roof except the shadow area 400, the end of the photovoltaic component 110 adjacent to the common tile can be close to the boundary line 401 of the shadow area 400.

[0063] In order to facilitate the processing of the above-mentioned photovoltaic component 110, and to improve the installation and disassembly of the photovoltaic component 110 and the auxiliary component 120, and to improve the structural stability. In some embodiments, along the first direction, the size of the photovoltaic component 110 and the size of the auxiliary component 120 are both A; along the second direction, the size of the photovoltaic component 110 and the size of the auxiliary component 120 are both B; wherein the first direction is perpendicular to the second direction, and A is greater than B.

[0064] Specifically, in the present example, the first direction is defined as the direction in which the batten 200 is arranged on the roof, i.e. the length direction of the photovoltaic component 110, and the second direction is defined as the direction in which the water runner is arranged on the roof, i.e. the width direction of the photovoltaic component 110. The length of all photovoltaic components 110 is A, and the length of all auxiliary components 120 is also A. In one example, A is between 880mm and 1800mm, for example, A can be 880mm, 950mm, 1000mm, 1500mm, 1800mm, etc. The width of all photovoltaic components 110 is B, and the width of all auxiliary components 120 is also B. In one example, B is between 350mm and 800mm, for example, B can be 350mm, 450mm, 600mm, 700mm, 800mm, etc. The specific sizes of A and B are not limited here and can be determined according to the actual size of the roof and the size of the shadow area 400.

[0065] The sizes of all photovoltaic components 110 and auxiliary components 120 are consistent, which facilitates the pipeline processing of the photovoltaic components 110, improves the manufacturing efficiency and reduces the cost; in addition, the consistent sizes also facilitate the simplification of the support structure connected thereto, thereby improving the structural stability and facilitating the installation and disassembly.

[0066] In addition, the present example introduces the auxiliary components 120 (common tiles) in the photovoltaic unit 100, which not only flexibly solves the problem of the shadow area 400 on the roof, but also reduces the material cost, the auxiliary components 120 are connected with the original roof material, which can ensure the aesthetics of the building, so that the photovoltaic arrangement system is naturally combined with the building, thereby promoting the integration of building photovoltaic.

[0067] Since the shadow area 400 has irregularity, in order to avoid the way of avoiding the shadow area 400 being too simple and rough, causing the problem of excessive reduction of the power generation area of other areas. As shown in Figure 4 In some embodiments, in the plurality of photovoltaic units 100, any two adjacent photovoltaic units 100 are arranged in a staggered manner, so that the auxiliary components 120 in the plurality of photovoltaic units 100 enclose a region covering the shadow area 400.

[0068] Specifically, assuming that the shadow area 400 is on the left side of the roof, and the projection view of the roof is a rectangle (the entire photovoltaic unit 100 also corresponds to a rectangular arrangement when there is no shadow area 400), a proper number of photovoltaic components 110 and a proper number of auxiliary components 120 are arranged in each photovoltaic unit 100, and the auxiliary components 120 are located on the left side of the photovoltaic unit 100. When installing the plurality of photovoltaic units 100 on the roof, in order to make the auxiliary components 120 in the plurality of photovoltaic units 100 enclose a region covering the shadow area 400, the plurality of photovoltaic components 110 can be moved to the left or right from the original position.

[0069] In other words, if the left end / right end of each photovoltaic unit 100 is arranged opposite to the left end / right end of the adjacent photovoltaic unit 100, in the face of irregular shadow area 400, in order to improve the power generation area of other areas, the present example arranges the adjacent photovoltaic units 100 in a staggered manner along the first direction, so that the region enclosed by the auxiliary components 120 covers the shadow area 400 as much as possible. In one example, the distance between the adjacent photovoltaic units 100 is less than A along the first direction. Specifically, the staggered distance of the adjacent photovoltaic units 100 is limited to be less than the length of one photovoltaic component 110, so as to ensure the rationality of the design and improve the aesthetics of the roof as a whole.

[0070] The arrangement of the auxiliary component 120 and the photovoltaic component 110 adjacent to the auxiliary component 120 in the same group of photovoltaic units 100 can be that, in some embodiments, the boundary line 401 of the shadow area 400 is located in the area enclosed by the auxiliary component 120; and the distance between the side of the photovoltaic component 110 adjacent to the auxiliary component 120 and the boundary line 401 is less than A in the first direction.

[0071] Specifically, by relatively moving the adjacent photovoltaic units 100 in the first direction, the boundary line 401 of the shadow area 400 is located in the suitable area enclosed by the auxiliary component 120, and the specific determination condition can be that the distance E between the end of the photovoltaic component 110 adjacent to the auxiliary component 120 and the boundary line 401 of the shadow area 400 in the first direction is less than A, and of course, the end of the photovoltaic component 110 adjacent to the auxiliary component 120 can be infinitely close to the boundary line 401 of the shadow area 400. This arrangement can maximize the area of the photovoltaic component 110 located outside the shadow area 400, thereby improving the roof power generation area and power generation capacity.

[0072] To meet the needs of other functions of the roof, such as lighting or opening, the auxiliary component 120 can be combined with the photovoltaic component 110. Figure 7 - The auxiliary component 120 can be combined with the photovoltaic component 110. Figure 9 As shown, Figure 7 The photovoltaic arrangement system (including the adjustable photovoltaic panel) provided according to some embodiments of the present application is arranged on the roof, Figure 8 The auxiliary component 120 can be combined with the photovoltaic component 110. Figure 7 The auxiliary component 120 can be combined with the photovoltaic component 110. Figure 9 The auxiliary component 120 can be combined with the photovoltaic component 110. Figure 7 In some embodiments, the photovoltaic component 110 includes photovoltaic tiles 111 and adjustable photovoltaic panels 112, and the ratio of the area of all adjustable photovoltaic panels 112 to the area of the photovoltaic units 100 is less than 20%.

[0073] Specifically, the adjustable photovoltaic panel 112 can be rotatably connected with the adjacent photovoltaic tile 111 to realize the opening function, and of course, the adjustable photovoltaic panel 112 can have a light-transmitting function and can be fixedly connected with the adjacent photovoltaic tile 111. Since the adjustable photovoltaic panel 112 has other functions, the power generation capacity of the adjustable photovoltaic panel 112 is less than that of the photovoltaic tile 111, and at the same time, in order to ensure the maximum area of the photovoltaic tile 111 on the roof, the total area of the adjustable photovoltaic panel 112 will be less than 20% of the total area of the photovoltaic units 100, so as to improve the power generation capacity of the roof.

[0074] Based on the above description, to cope with different conditions of the roof, the composition of the photovoltaic units 100 in the present example can be:

[0075] In one example, each group of photovoltaic units 100 includes a plurality of photovoltaic tiles 111. Specifically, the photovoltaic units 100 only include photovoltaic tiles 111, which are suitable for the roof area without shelter. Figure 1

[0076] In one example, each group of photovoltaic units 100 includes a plurality of photovoltaic tiles 111 and at least one adjustable photovoltaic panel 112. Such photovoltaic units 100 are suitable for the roof area without shelter, but with other functional (light-transmitting, opening) requirements. As shown in Figure 7

[0077] In one example, each group of photovoltaic units 100 includes a plurality of photovoltaic tiles 111 and at least one auxiliary component 120. Such photovoltaic units 100 are suitable for the curved roof area with shelter, but without other functional requirements. As shown in Figure 4

[0078] In one example, each group of photovoltaic units 100 includes a plurality of photovoltaic tiles 111, at least one adjustable photovoltaic panel 112, and at least one auxiliary component 120. Such photovoltaic units 100 are suitable for the roof area with shelter and at the same time with other functional requirements.

[0079] Based on the above description, the overall photovoltaic units 100 can include the same type of photovoltaic units 100 described above, or different types of photovoltaic units 100 to adapt to different roof areas, and the specific combination is not limited here.

[0080] In some embodiments, the adjustable photovoltaic panel 112 includes a light-transmitting photovoltaic panel. Specifically, the light-transmitting photovoltaic panel not only allows part of the light to pass through itself, but also can perform photoelectric conversion, to meet the roof area with lighting requirements, expand the applicable direction of the photovoltaic units 100 on the roof, and be conducive to promoting the integration of building photovoltaic.

[0081] ​​​In some embodiments, the photovoltaic arrangement system further comprises a plurality of water flow bars, a plurality of batten 200 and a connecting piece 300. Each water flow bar extends along the second direction, and the plurality of water flow bars are sequentially and fixedly arranged along the first direction on the roof; each batten 200 extends along the first direction, and the plurality of battens 200 are sequentially and fixedly arranged along the second direction on the water flow bars; the connecting piece 300 is arranged between the photovoltaic unit 100 and the corresponding batten 200, so that the plurality of groups of photovoltaic units 100 are lap-jointed and fixed on the battens 200.

[0082] Specifically, the plurality of water flow bars are sequentially and fixedly arranged along the first direction, the extension direction of the batten 200 is perpendicular to the extension direction of the water flow bar, and the batten 200 is arranged above the water flow bar. The specific structure and arrangement mode of the water flow bar and the batten 200 can be understood with reference to related technologies, and will not be described here. The connecting piece 300 can be used as a connecting block to connect two components arranged along the second direction, and the two components partially overlap. The connecting block is fixedly connected with the batten 200 through bolts and other fasteners. The specific arrangement form of the connecting piece 300 can be understood with reference to related technologies, and will not be described here.

[0083] It should be noted that the connection between the components in the same group of photovoltaic units 100 can be achieved by lap joint, but no specific limitation is made.

[0084] The embodiment of the present application also provides a photovoltaic building integrated roof, which comprises the photovoltaic arrangement system in the above embodiment.

[0085] Specifically, by arranging a plurality of groups of photovoltaic units 100 on the roof, the distance between the two ends of each group of photovoltaic units 100 extending along the first direction and the roof edge is less than the length of the photovoltaic component 110 in the first direction, and the distance between the two sides of the plurality of groups of photovoltaic units 100 arranged along the second direction and the roof edge is less than the length of the photovoltaic component 110 in the second direction. This arrangement can maximize the roof area of the photovoltaic unit 100, maximize the power generation area of the roof, and adapt to various types of roofs, thereby improving the power generation capacity.

[0086] In addition, the introduction of the auxiliary component 120 (ordinary tile) can flexibly cope with the shadow area 400 of the roof, and the staggered arrangement of the plurality of groups of photovoltaic units 100 along the first direction can maximize the area of the photovoltaic component 110 located outside the shadow area 400, thereby improving the power generation area and power generation capacity of the roof (when there is a shadow area 400). This arrangement can effectively connect the original roof through the auxiliary component 120, ensure the building aesthetics, and facilitate the promotion of building photovoltaic integration.

[0087] In addition, the photovoltaic assembly 110 also introduces an adjustable photovoltaic panel 112, which can meet the roof lighting, opening and other needs while ensuring the roof power generation area, and expands the application range of the photovoltaic system on the roof.

[0088] The technical features of the above-mentioned embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0089] The above-mentioned embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A photovoltaic array system, characterized in that, include: Multiple sets of photovoltaic units, each photovoltaic unit comprising multiple photovoltaic modules arranged along a first direction, and the multiple sets of photovoltaic units arranged sequentially along a second direction intersecting the first direction; Wherein, along the first direction, the distance from both ends of each group of photovoltaic units to the edge of the roof is less than the size of each photovoltaic module along the first direction; along the second direction, the distance from both sides of the multiple groups of photovoltaic units to the edge of the roof is less than the size of each photovoltaic module along the second direction.

2. The photovoltaic array system according to claim 1, characterized in that, At least one set of the photovoltaic units also includes at least one auxiliary component corresponding to the shaded area of ​​the roof.

3. The photovoltaic array system according to claim 2, characterized in that, Along the first direction, the size of the photovoltaic module and the size of the auxiliary component are both A; along the second direction, the size of the photovoltaic module and the size of the auxiliary component are both B; wherein, the first direction is perpendicular to the second direction, and A is greater than B.

4. The photovoltaic array system according to claim 3, characterized in that, In the plurality of photovoltaic units, any two adjacent photovoltaic units are staggered along the first direction so that the area enclosed by the auxiliary components in the plurality of photovoltaic units covers the shaded area.

5. The photovoltaic array system according to claim 4, characterized in that, The boundary line of the shaded area is located within the area enclosed by the auxiliary components; Along the first direction, the distance from the boundary line to the side of the photovoltaic module adjacent to the auxiliary component is less than A; And / or, along the first direction, the misalignment distance between adjacent photovoltaic units is less than A.

6. The photovoltaic array system according to any one of claims 2-5, characterized in that, The photovoltaic module includes photovoltaic tiles and adjustable photovoltaic panels, wherein the sum of the areas of all the adjustable photovoltaic panels is less than 20% of the sum of the areas of the multiple sets of photovoltaic units.

7. The photovoltaic array system according to claim 6, characterized in that, Each group of photovoltaic units includes multiple photovoltaic tiles; Alternatively, each group of photovoltaic units may include multiple photovoltaic tiles and at least one adjustable photovoltaic panel; Alternatively, each group of photovoltaic units may include multiple photovoltaic tiles and at least one of the auxiliary components; Alternatively, each group of photovoltaic units may include multiple photovoltaic tiles, at least one adjustable photovoltaic panel, and at least one auxiliary component.

8. The photovoltaic array system according to claim 6, characterized in that, The adjustable photovoltaic panel includes a light-transmitting photovoltaic panel.

9. The photovoltaic array system according to any one of claims 3-5, characterized in that, A is between 880mm and 1800mm; The value of B is between 350mm and 800mm.

10. The photovoltaic array system according to any one of claims 1-5, characterized in that, The photovoltaic array system also includes: Multiple water-following strips, each of which extends along the second direction, and the multiple water-following strips are sequentially and spaced apart from each other along the first direction and fixed to the roof; Multiple tile strips, each of which extends along the first direction, and the multiple tile strips are sequentially and spaced apart from the water-running strip along the second direction; A connector is provided between the photovoltaic unit and the corresponding roofing strip so that multiple sets of photovoltaic units are overlapped and fixed on the roofing strip.

11. A building-integrated photovoltaic (BIPV) roof, characterized in that, The photovoltaic array system includes any one of claims 1-10.

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