Patent Description:
Building integrated photovoltaic is an important form of application of solar power generation in cities, and as the most important link in the building integrated photovoltaic application, a roof is the most ideal site for combining the integrated photovoltaic building application with a building. In the related art, a combination of photovoltaic modules and a roof is mostly to lay conventional photovoltaic modules directly on an original roof of the building, and such structure is cumbersome, disrupts the overall effectiveness of the building, and is poorly aesthetically pleasing. Along with the deepening of a photovoltaic technology application, a photovoltaic roof structure in which the photovoltaic modules are fused with a shed-like structure has appeared. However, the photovoltaic roof structure in the related art has a poor waterproof and sunshade (or partial light transmission) effect. On the following Internet page, a photovoltaic roof structure is disclosed:
https://web. org/web/<NUM>/http:/solar-sicherheit. de:<NUM>/cgi-bin/cgiwrap/schneider/ error404. pl?dir__path=energie-thueringen&file=/<NUM>-sicherheitsfragen/ost-west-dach.

The present application provides a photovoltaic roof structure, to solve an issue that a photovoltaic roof structure in the related art has a poor waterproof and sunshade effect. The present application provides the photovoltaic roof structure according to claim <NUM>.

The present application adopts the following technical schemes.

The present application provides a photovoltaic roof structure. The photovoltaic roof structure includes a bracket, multiple photovoltaic units and multiple waterproof assemblies.

The bracket includes multiple support rods disposed in parallel.

The multiple photovoltaic units are erected on the multiple support rods and are laid along a first direction and a second direction, the first direction is perpendicular to the second direction, adjacent ones of the plurality of photovoltaic units are interconnected to form a roof structure, two ends of each of the plurality of photovoltaic units in the first direction are installed with an upper frame and a lower frame respectively, the lower frame is installed on a support rod, two adjacent lower frames abut each other, and two adjacent upper frames are hinged to each other.

Each of the multiple waterproof assemblies is disposed between two adjacent upper frames and engages with the two adjacent upper frames.

The present application will be described below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative of the present application. For ease of description, only part, but not all, of the structures related to the present application are shown in the drawings.

In the description of the present application, the terms "coupled", "connected", and "fixed" are to be construed broadly, for example may mean fixedly connected, detachably connected, or integrated; may mean mechanically connected or electrically connected; may mean directly connected, indirectly connected through an intermediate medium, or may mean inside connection of two elements or the interaction between two elements. The meanings of the above terms in the present application may be understood according to the actual situations by those of ordinary skill in the art.

In the present application, a first feature being "on" or "under" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact with each other through additional features therebetween. Moreover, the first feature being "on", "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply represents that the first feature is at a higher level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply represents that the first feature is at a lower level than the second feature.

In the description of this embodiment, orientations or positional relationships of the terms "upper", "lower", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the devices or elements referred to must have a particular orientation, and be constructed and operated in a particular orientation. Furthermore, the terms "first" and "second" are used merely to distinguish between descriptions and have no special meaning.

This embodiment provides a photovoltaic roof structure. As shown in <FIG>, the photovoltaic roof structure includes a bracket, multiple photovoltaic units <NUM> and multiple waterproof assemblies <NUM>. The bracket includes multiple support rods <NUM> disposed in parallel. The multiple photovoltaic units are erected on the multiple support rods <NUM> and are laid along a first direction and a second direction. For example, the first direction is an axial direction of the support rods <NUM>, the second direction is a direction in which the multiple support rods <NUM> are arranged in sequence, and the first direction is perpendicular to the second direction. Adjacent photovoltaic units among the multiple photovoltaic units are interconnected to form the roof structure, and the roof structure enables the function of sunshade and power generation. In an embodiment, two ends of each photovoltaic unit <NUM> in the first direction is installed with an upper frame <NUM> and a lower frame <NUM>. The lower frame <NUM> is installed on the support rod <NUM>, and two adjacent upper frames <NUM> are hinged. Each waterproof assembly <NUM> is disposed between two adjacent upper frames <NUM> and engages with the two adjacent upper frames <NUM>. The waterproof assemblies <NUM> are provided so that the photovoltaic roof structure in this embodiment can realize the waterproof function. Such structure has effectively utilized the space, and the installation and disassembly are very convenient.

Optionally, two adjacent upper frames <NUM> are hinged by a hinge <NUM>. The two adjacent upper frames <NUM> are fixed on two sides of the hinge <NUM>, each upper frame <NUM> fixes one photovoltaic unit <NUM>, and an angle between two photovoltaic units <NUM> fixed by the two adjacent upper frames <NUM> is adjustable by opening and closing of the hinge <NUM>, so that the photovoltaic roof structure can adapt to the need for a setting angle of the photovoltaic unit <NUM> in different scenarios, and thus the photovoltaic roof structure is more flexibly and variably applied to scenarios.

Optionally, referring to <FIG>, the upper frame <NUM> includes a first accommodating groove <NUM>, a first fixing portion <NUM> and an engagement groove <NUM>. The first accommodating groove <NUM> is configured to fix the photovoltaic unit <NUM>. The first fixing portion <NUM> is fixed on the hinge <NUM> through the first fixing member <NUM>, so that the upper frame <NUM> can be rotated by a certain angle with the opening and closing of the hinge <NUM>. The waterproof assembly <NUM> includes a waterproof cover plate <NUM> and an engagement portion <NUM>, where the engagement portion <NUM> is fishbone-shaped, an end of the engagement portion <NUM> is connected to the waterproof cover plate <NUM>, an inner wall of the waterproof cover plate <NUM> abuts against an outer wall of the first accommodating groove <NUM>, and the engagement portion <NUM> engages with the engagement grooves <NUM> of two adjacent upper frames <NUM>, whereby the waterproof assembly <NUM> is fixed between the two adjacent upper frames <NUM>. In addition, an interference fit exists between a tail end of the fishbone-shaped engagement portion <NUM> and the engagement groove <NUM> of the upper frame <NUM>. With such arrangement, the waterproof assembly <NUM> can play the role of waterproof and support the upper frames <NUM> on two sides, ensuring the connection reliability of the photovoltaic roof structure and featuring simple assembly structure.

Optionally, a bolt may be used as the first fixing member <NUM>. The method of fixed connection by a bolt allows simple structure, convenient disassembly and low cost. In other embodiments, other connection member may be used as the first fixing member <NUM> to fix the upper frame <NUM>.

Optionally, the waterproof assembly <NUM> includes fishbone-shaped engagement portions <NUM> of different models so as to match two upper frames <NUM> at different opening and closing angles. When the opening and closing angle of the hinge <NUM> is changed, waterproof assemblies <NUM> of different models can be used for replacement to ensure the cooperation of the engagement portion <NUM> and the engagement groove <NUM>. In this fixing manner, the installation and disassembly of the waterproof assembly <NUM> is very convenient. When the setting angle of the photovoltaic unit <NUM> needs to be changed, it only needs to replace with a waterproof assembly <NUM> of an applicable model, without replacing the upper frame <NUM>, which saves the amount of material used to manufacture the upper frame <NUM> and reduces the cost.

Optionally, a non-skid pattern is provided on a surface of the engagement groove <NUM> of the upper frame <NUM>. The non-skid pattern is provided so that the friction between the waterproof assembly <NUM> and the upper frame <NUM> can be increased, thereby preventing the waterproof assembly <NUM> from falling out, and ensuring the reliability of fixing between the waterproof assembly <NUM> and the upper frame <NUM>.

Optionally, as shown in <FIG> and <FIG>, the lower frame <NUM> includes a second accommodating groove <NUM> and a second fixing portion <NUM>. The second accommodating groove <NUM> is configured to fix the photovoltaic unit <NUM>. The second fixing portion <NUM> is disposed at the bottom of the lower frame <NUM>. Second fixing portions <NUM> of two adjacent lower frames <NUM> overlap with each other, and are fixed on the support rods <NUM> through a second fixing member <NUM>. Outer walls of two adjacent second accommodating grooves <NUM> abut against each other to form a first waterproof structure, so that with the first waterproof structure, water droplets can be prevented from flowing into the connection between two adjacent lower frames <NUM>, thereby ensuring that the second fixing member <NUM> does not come into contact with water droplets as much as possible to prolong the service life of the second fixing member <NUM>. In addition, two adjacent second fixing portions <NUM> are overlapped to form a second waterproof structure. The second waterproof structure is provided so that the inflow of water droplets between two adjacent lower frames <NUM> can be prevented, ensuring the good waterproofing effect of the photovoltaic roof structure.

Optionally, a bolt may be used as the second fixing member <NUM>. The method of fixed connection by a bolt allows simple structure, convenient disassembly and low cost. In other embodiments, other connection member may be used as the second fixing member <NUM> to fix the lower frame <NUM>.

Optionally, since the lower frame <NUM> at an edge lacks an adjacent lower frame <NUM> to overlap with each other, a shim <NUM> is provided at the second fixing portion <NUM> of the lower frame <NUM> at the edge to provide the support for the lower frame <NUM> at the edge, ensuring the fixing stability of the lower frame <NUM>. Moreover, a lower head frame <NUM> of other model do not need to be additionally provided, so that the process of installation and assembling is easier.

Optionally, as shown in <FIG>, a press block <NUM> is disposed above the second fixing member <NUM>. The press block <NUM> can protect the second fixing member <NUM> and prevent water droplets or the like from coming into contact with the second fixing member <NUM>, avoiding rusting of the second fixing member <NUM> and prolonging the service life of the second fixing member <NUM>. Further, the press block <NUM> can support the lower frames <NUM> disposed on two sides, ensuring the reliability of the connection between two adjacent lower frames <NUM>.

When the setting angle of the photovoltaic unit <NUM> needs to be changed, since an angle between the second fixing portion <NUM> of the lower frame <NUM> and a frame body of the lower frame <NUM> is fixed, lower frames <NUM> of different models are needed for replacement to match the setting angle of the photovoltaic unit <NUM>, which requires preparation of many lower frames <NUM> of different models, resulting in waste of manpower and physical power.

To solve the above-described issue, the photovoltaic roof structure in this embodiment is provided with a cushion block <NUM>, as shown in <FIG>. The cushion block <NUM> is disposed between the lower frame <NUM> and the support rod <NUM> and is fixed on the support rod <NUM> through the second fixing member <NUM>. A setting angle of an upper end surface of the shim <NUM> is changed so that the lower frame <NUM> fits snugly with the cushion block <NUM>, whereby the fixing stability of the lower head frame <NUM> is ensured. In this manner, the preparation of multiple lower frames <NUM> of different models is avoided, and when the setting angle of the photovoltaic unit <NUM> needs to be changed, the lower frame <NUM> of a same model can be used and only different cushion blocks <NUM> are needed for replacement. Such configuration is flexibly applied to the scenarios, and the cushion block <NUM> has a small volume, is easy to be processed, and has low cost.

Referring to <FIG> and <FIG>, the photovoltaic roof structure in this embodiment is also laid with multiple photovoltaic units <NUM> in the second direction, two adjacent photovoltaic units <NUM> are fixed by a side frame <NUM> which includes a first side frame <NUM> and a second side frame <NUM>. The first side frame <NUM> and the second side frame <NUM> each include a third accommodating groove <NUM>, and the third accommodating grooves <NUM> are configured to fix the two adjacent photovoltaic units <NUM>. A first scarfing portion <NUM> is disposed on the first side frame <NUM>, and a second scarfing portion <NUM> is disposed on the second side frame <NUM>. The first scarfing portion804 and the second scarfing portion <NUM> may be connected to each other in a nesting manner to ensure the reliability of the connection between the two adjacent photovoltaic units.

Referring to <FIG> and <FIG>, the photovoltaic roof structure in this embodiment further includes a liquid collection device <NUM> which includes a water guide groove <NUM>, the water guide groove <NUM> is disposed between adjacent support rods <NUM> and is located directly below the lower frame <NUM>, two ends of the water guide groove <NUM> are each provided with an insertion portion, the support rod <NUM> is provided with a hole, and the insertion portions at the two ends of the water guide groove <NUM> are inserted into holes of adjacent support rods <NUM>, respectively, whereby the water guide groove <NUM> is fixed. Accumulated water drops can be discharged along the water guide groove <NUM> through the water guide groove <NUM>, ensuring the good waterproof effect of the photovoltaic roof structure.

Optionally, the liquid collection device <NUM> further includes a connection member <NUM> and a limit member <NUM>. The connection member <NUM> is fixed on the support rod <NUM> through a third fixing member <NUM>, and an accommodating groove is disposed on the connection member <NUM>. The limit member <NUM> is fixed within the accommodating groove through the third fixing element <NUM>, the limit member <NUM> abuts against the insertion portion of the water guide groove <NUM> to limit the displacement of the water guide groove <NUM> in a third direction. The third direction is a direction perpendicular to the ground, and is perpendicular to both the first direction and the second direction. The connection member <NUM> and the limit member <NUM> are provided so that the fixing stability of the water guide groove <NUM> is ensured.

Optionally, a bolt may be used as the third fixing member <NUM>. The method of fixed connection by a bolt allows simple structure, convenient disassembly and low cost. In other embodiments, other connection member may be used as the third fixing member <NUM> to fix the connection member <NUM> and the limit member <NUM>.

The present application provides a photovoltaic roof structure which includes the bracket, the multiple photovoltaic units and the multiple waterproof assemblies. The bracket includes the multiple support rods disposed in parallel. The multiple photovoltaic units are erected on the multiple support rods and are laid along the first direction and the second direction, the adjacent photovoltaic units among the multiple photovoltaic units are interconnected to form the roof structure, the photovoltaic units disposed in the first direction are fixed through the upper frame and the lower frame, the lower frame is fixed on the support rod, two adjacent upper frames are hinged. Each waterproof assembly is disposed between two adjacent upper frames and engages with the two adjacent upper frames. The photovoltaic roof structure described above can not only achieve the effect of waterproof and sunshade, but also make effective use of the space, so that the structure is simple, and the installation and disassembly are convenient.

This embodiment further provides a photovoltaic roof structure which differs from the photovoltaic roof structure in the embodiment two in that: multiple photovoltaic units <NUM> are disposed between an upper frame <NUM> and a lower frame <NUM> in the photovoltaic roof structure in this embodiment. As shown in <FIG>, the description is given by taking as an example two photovoltaic units <NUM> being disposed between the upper frame <NUM> and the lower frame <NUM> in this embodiment. Two photovoltaic units <NUM> are connected by a connection frame <NUM>, and since an area of the single photovoltaic unit <NUM> is generally small, when a photovoltaic roof structure with a large area is required, two adjacent photovoltaic units <NUM> may be connected through the connection frame <NUM> so that an area of a side surface of the photovoltaic roof structure is increased to satisfy the requirement of a user. In other embodiments, other numbers of photovoltaic units <NUM> such as three photovoltaic units or four photovoltaic units can also be disposed between the upper frame <NUM> and the lower frame <NUM>.

Optionally, as shown in <FIG>, the connection frame <NUM> in this embodiment includes a fourth accommodating groove <NUM>, an overlapping portion <NUM> and a third fixing portion <NUM>. The fourth accommodating groove <NUM> can fix the photovoltaic unit <NUM>, the third fixing portion <NUM> is fixed on the support rod <NUM>, and overlapping portions <NUM> of two adjacent connection frames <NUM> overlap with each other so that the two adjacent photovoltaic units <NUM> are connected by the connection frame <NUM>.

Optionally, the photovoltaic roof structure in this embodiment further includes a support assembly <NUM>. The support assembly <NUM> is disposed between the connection frame <NUM> and the support rod <NUM>. Exemplarily, the third fixing portion <NUM> of the connection frame <NUM> is fixed on the support assembly <NUM> through a fourth fixing member <NUM>, and the support assembly <NUM> is fixed on the support rod <NUM>. The support assembly <NUM> is configured to support the connection frame <NUM>, so that the stability of the connection frame <NUM> for fixing the photovoltaic unit <NUM> is ensured. Optionally, the support assembly <NUM> may also be fixed on the support rod <NUM> by the fourth fixing member <NUM>.

Optionally, a bolt may be used as the fourth fixing member <NUM>. The method of fixed connection by a bolt allows simple structure, convenient disassembly and low cost. In other embodiments, other connection member may be used as the fourth fixing member <NUM> to fix the connection frame <NUM> and the support assembly <NUM>.

Claim 1:
A photovoltaic roof structure, comprising:
a bracket, wherein the bracket comprises a plurality of support rods (<NUM>) disposed in parallel;
a plurality of photovoltaic units (<NUM>), wherein the plurality of photovoltaic units (<NUM>) are erected on the plurality of support rods (<NUM>) and are laid along a first direction and a second direction, the first direction is perpendicular to the second direction, adjacent ones of the plurality of photovoltaic units (<NUM>) are interconnected to form a roof structure, two ends of each of the plurality of photovoltaic units (<NUM>) in the first direction are installed with an upper frame (<NUM>) and a lower frame (<NUM>) respectively, the lower frame (<NUM>) is installed on a support rod (<NUM>), two adjacent lower frames (<NUM>) abut each other, and two adjacent upper frames (<NUM>) are hinged to each other; and
a plurality of waterproof assemblies (<NUM>), wherein each of the plurality of waterproof assemblies (<NUM>) is disposed between two adjacent upper frames (<NUM>) and engages with the two adjacent upper frames (<NUM>).