A photovoltaic and solar thermal roof

Abstract

This utility model pertains to building components, and more particularly relates to a photovoltaic and solar thermal roof. It includes a roof and photovoltaic and solar thermal modules installed on it. The photovoltaic and solar thermal modules include a square tube frame serving as its supporting skeleton, which constitutes the top load-bearing structure of the roof. Insulated wall panels are laid on the square tube frame, and supports are installed on the insulated wall panels. The supports support the photovoltaic panels and create an installation space between the photovoltaic panels and the insulated wall panels to accommodate a solar collector. The solar collector is installed within this sealed space. A spacer tube is fixed around the top perimeter of the photovoltaic panels, and a photovoltaic glass panel is laid on top of the spacer tube. A hollow layer is formed between the photovoltaic glass panel and the photovoltaic panels through the spacer tube. This design solves the problem of unstable integration between the photovoltaic system and the building, and overcomes the shortcomings of traditional PVT systems, such as easy leakage due to numerous external connection points and low thermal efficiency due to poor insulation.

Description

Technical Field

[0001] This utility model pertains to building components, and particularly relates to a photoelectric and photothermal roof. Background Technology

[0002] Currently, installing traditional photovoltaic panels on building rooftops is a common way to utilize solar energy. However, this layered installation has some drawbacks: First, the photovoltaic system is independent of the building structure and fails to integrate with the roof, which not only affects the building's aesthetics but also poses risks of unstable connections and potential structural damage from wind and snow loads. Second, the solar energy utilization rate is low, with a significant amount of energy lost as heat, resulting in energy waste.

[0003] To utilize solar energy, photovoltaic (PVT) technology is used. Current technologies mostly employ a series connection of single-panel PVT modules, where multiple independent PVT panels are connected together to form a system via external pipes. This approach has two major drawbacks:

[0004] First, the fluid connections between the plates rely on numerous external joints and fittings. These connection points are highly susceptible to leakage or rupture under long-term thermal expansion and contraction, pressure operation, and environmental corrosion, leading to the failure of the entire photothermal circuit, high system maintenance costs, and unpredictable lifespan.

[0005] Second, the traditional single-board PVT module has a thin structure, which makes it easy for the collected heat to be lost to the external environment, especially in seasons with large temperature differences, resulting in serious heat loss. Summary of the Invention

[0006] This utility model addresses the shortcomings of existing technologies by providing a photoelectric and thermal roof.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a photovoltaic and solar thermal roof includes a roof and a photovoltaic and solar thermal module laid on it; the photovoltaic and solar thermal module includes a square tube frame as its supporting skeleton, which constitutes the top load-bearing structure of the roof; an insulation wall panel is laid on the square tube frame, and a bracket is installed on the insulation wall panel; the bracket supports the photovoltaic panel and forms an installation space between the photovoltaic panel and the insulation wall panel for accommodating a solar collector, and the solar collector is installed in the sealed space; a pad tube is fixed around the top surface of the photovoltaic panel, and a photovoltaic glass panel is laid on the top of the pad tube, with a hollow layer formed between the photovoltaic glass panel and the photovoltaic panel through the pad tube.

[0008] Furthermore, the collector is a stainless steel threaded underfloor heating pipe laid in the installation space.

[0009] Furthermore, it also includes a solar thermal utilization system, which includes a hot water storage tank, a water source heat pump, an air source heat pump, and a radiator; the collector, the water source heat pump, and the hot water storage tank are connected in sequence through pipelines to form a main heating circuit; the air source heat pump is connected to the hot water storage tank and is used to heat or cool the hot water storage tank; the radiator is connected in parallel in the circuit of the collector and is equipped with a valve to control its on / off state.

[0010] Furthermore, it also includes a photovoltaic utilization system, which includes an inverter, and the power output terminal of the photovoltaic panel is connected to the inverter.

[0011] Furthermore, the photovoltaic utilization system is an off-grid system and also includes a battery energy storage device connected to the inverter.

[0012] Furthermore, there are multiple pads, and the cross-section of each pad is rectangular; the multiple pads are respectively arranged along the edge of the top surface of the photovoltaic panel, and their lengths are adapted to the lengths of the corresponding edges.

[0013] Compared with the prior art, this utility model has the following advantages.

[0014] This invention utilizes a square tube frame as a load-bearing roof, and sequentially integrates insulated wall panels, solar collectors, photovoltaic panels, and photovoltaic glass to form an integrated photovoltaic and solar thermal roof structure. This structure solves the problem of unstable integration between the photovoltaic system and the building, and its internal integrated heat collection loop and insulation measures recover waste heat from the photovoltaic panels. It overcomes the shortcomings of traditional PVT systems, such as easy leakage due to numerous external connection points and low thermal efficiency caused by poor insulation, thus improving energy utilization. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the following description.

[0016] Figure 1 This is a three-dimensional view of a photovoltaic energy conversion rooftop device.

[0017] Figure 2 A type of photovoltaic energy conversion rooftop device with photothermal and photovoltaic modules in three dimensions. Figure 1 .

[0018] Figure 3 A type of photovoltaic energy conversion rooftop device with photothermal and photovoltaic modules in three dimensions. Figure 2 .

[0019] Figure 4 yes Figure 2 A magnified view of a portion of the image.

[0020] In the diagram, 1 is the roof of the house; 2 is the solar thermal and photovoltaic module; 201 is the square tube frame; 202 is the thermal insulation wall panel; 203 is the solar collector; 204 is the bracket; 205 is the pad pipe; 206 is the photovoltaic panel; and 207 is the photovoltaic glass. Detailed Implementation

[0021] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0022] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0023] Depending on the context, words such as “if” or “suppose” used here can be interpreted as “when”, “when”, “in response to determination”, or “in response to detection”.

[0024] For ease of understanding, the embodiments of this disclosure will be described in detail first.

[0025] like Figure 1-4 As shown in the specific embodiment: the photovoltaic and solar thermal roof includes a roof 1 and a photovoltaic and solar thermal module 2 laid on it; the photovoltaic and solar thermal module includes a square tube frame 201 as its supporting skeleton, which constitutes the top load-bearing structure of the roof; an insulation wall panel 202 is laid on the square tube frame 201, and a bracket 204 is installed on the insulation wall panel 202; the bracket 204 supports the photovoltaic panel 206 and forms an installation space between the photovoltaic panel 206 and the insulation wall panel 202 for accommodating the collector 203, and the collector 203 is installed in the sealed space; a pad tube 205 is fixed around the top surface of the photovoltaic panel 206, and a photovoltaic glass panel 207 is laid on the top of the pad tube 205, and a hollow layer is formed between the photovoltaic glass panel 207 and the photovoltaic panel 206 through the pad tube 205. The square tube frame 201 serves as the load-bearing skeleton; a dense insulation wall panel 202 is laid on top of it, and the photovoltaic panel 206 is raised by the bracket 204, thus forming a flat installation space above the insulation layer; the collector 203 is arranged in this space to directly collect the heat emitted from the back of the photovoltaic panel; finally, the photovoltaic glass panel 207 at the top is supported by the pad pipe 205.

[0026] Preferably, the collector 203 is a stainless steel threaded underfloor heating pipe laid in the installation space. Stainless steel is highly corrosion-resistant and has a long service life; while the threaded design increases the heat exchange area and improves heat absorption efficiency.

[0027] Preferably, it also includes a solar thermal utilization system, which includes a hot water storage tank, a water source heat pump, an air source heat pump, and a radiator; the collector 203, the water source heat pump, and the hot water storage tank are connected in sequence through pipelines to form a main heating circuit; the air source heat pump is connected to the hot water storage tank and is used to heat or cool the hot water storage tank; the radiator is connected in parallel in the circuit of the collector 203 and is equipped with a valve to control its on / off state.

[0028] In Example 1, the outlet of the solar collector 203 is connected to the low-temperature side inlet of the water source heat pump through a pipeline, and the high-temperature side outlet of the water source heat pump is connected to the inlet of the hot water storage tank, forming a main heating circuit for raising and storing heat.

[0029] Preferably, the system also includes a photovoltaic (PV) utilization system, specifically an inverter, with the power output terminal of the photovoltaic panel 206 connected to the inverter. The PV utilization system is an off-grid system and also includes a battery energy storage device connected to the inverter.

[0030] Preferably, there are multiple spacer tubes 205, and the cross-section of each spacer tube 205 is rectangular. The multiple spacer tubes 205 are respectively arranged along the edge of the top surface of the photovoltaic panel 206, and their lengths are adapted to the length of the corresponding edges. The rectangular spacer tubes have a larger contact area with the photovoltaic panel 206 and the photovoltaic glass panel 207, resulting in a more stable connection.

[0031] Example 2: The photovoltaic and solar thermal roof also includes an energy management system, which includes a monitoring host, a PLC controller, and sensors connected to the solar collector 203 and the photovoltaic panel 206. The sensors include electrical sensors installed on the photovoltaic panel 206 to monitor power generation parameters, and thermal sensors installed in the circuit of the solar collector 203 to monitor temperature and flow rate. The signal output terminals of the sensors are connected to the input terminals of the PLC controller, and the output terminals of the PLC controller are connected to the control terminals of the inverter, valves in the solar thermal utilization system, and the heat pump. The monitoring host is communicatively connected to the PLC controller.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "preferred embodiment," "detailed description," or "preferred embodiment," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Therefore, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of this utility model.

Claims

1. A photovoltaic photothermal roof, characterized in that, The system includes a roof (1) and a solar thermal and photovoltaic module (2) laid on it; the solar thermal and photovoltaic module includes a square tube frame (201) as its supporting skeleton, which constitutes the top load-bearing structure of the roof; an insulation wall panel (202) is laid on the square tube frame (201), and a bracket (204) is installed on the insulation wall panel (202); the bracket (204) supports the photovoltaic panel (206) and forms an installation space between the photovoltaic panel (206) and the insulation wall panel (202) for accommodating the collector (203), and the collector (203) is installed in the installation space; a pad tube (205) is fixed around the top surface of the photovoltaic panel (206), and a photovoltaic glass panel (207) is laid on the top of the pad tube (205), and a hollow layer is formed between the photovoltaic glass panel (207) and the photovoltaic panel (206) through the pad tube (205).

2. The photovoltaic photothermal roof according to claim 1, characterized in that, The collector (203) is a stainless steel threaded floor heating pipe laid in the installation space.

3. The photovoltaic and solar thermal roof according to claim 1 or 2, characterized in that, It also includes a solar thermal utilization system, which includes a hot water storage tank, a water source heat pump, an air source heat pump, and a radiator; the collector (203), the water source heat pump, and the hot water storage tank are connected in sequence through pipelines to form a main heating circuit; the air source heat pump is connected to the hot water storage tank and is used to heat or cool the hot water storage tank; the radiator is connected in parallel in the circuit of the collector (203) and is provided with a valve to control its on / off state.

4. The photovoltaic and solar thermal roof according to claim 1, characterized in that, It also includes a photovoltaic utilization system, which includes an inverter, and the power output terminal of the photovoltaic panel (206) is connected to the inverter.

5. The photovoltaic and solar thermal roof according to claim 4, characterized in that, The photovoltaic system is an off-grid system and also includes a battery energy storage device connected to the inverter.

6. The photovoltaic and solar thermal roof according to claim 1, characterized in that, The pad tube (205) consists of multiple tubes, and the cross-section of the pad tube (205) is rectangular. The multiple pad tubes (205) are respectively arranged along the edge of the top surface of the photovoltaic panel (206), and their lengths are adapted to the lengths of the corresponding edges.

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