Light-transmitting photovoltaic photo-thermal equipment

Abstract

The utility model relates to a light-transmitting type photovoltaic photo-thermal device which comprises a photovoltaic frame, a light-transmitting insulating back plate is installed in the photovoltaic frame, a photovoltaic battery pack string is installed on the upper layer of the light-transmitting insulating back plate through a bonding layer, a heat exchanger is installed on the lower layer of the light-transmitting insulating back plate, and the heat exchanger comprises a bearing shell. A plurality of spaced fins are distributed in the bearing shell, a heat exchange cavity is formed among the spaced fins, flow guide holes are formed in the spaced fins, the bearing shell is located at the front end and the rear end of the heat exchange cavity and provided with a feeding port assembly and a discharging port assembly respectively, a junction box is installed on the outer side of the photovoltaic frame, and the junction box is electrically connected with the photovoltaic battery pack string. Therefore, the light-transmitting insulating back plate is adopted, sunlight can be guided in, lighting assistance in the daytime is achieved, sunlight is effectively utilized, and consumption of indoor electricity utilization lighting is reduced. Sunlight heat energy can be introduced in daily life, indoor temperature adjustment is achieved, and in a high-temperature environment, the heat exchanger can be started to dissipate heat, and meanwhile heat energy is stored or thermoelectric conversion is carried out.

Description

Technical Field

[0001] This utility model relates to a photothermal device, and more particularly to a light-transmitting photovoltaic photothermal device. Background Technology

[0002] In high-speed rail stations, airports, and the rooftops of residential buildings, translucent materials such as glass are often used for construction to meet aesthetic design and lighting requirements. However, in the high temperatures of summer, sunlight causes the building's interior temperature to rise. Translucent materials prevent long-wave heat radiation from reaching the interior, creating a greenhouse effect and reducing comfort levels. Current technologies often employ shading mechanisms to reduce the intensity of solar radiation reaching the interior, or utilize forced ventilation and cooling technologies to maintain comfort levels.

[0003] In large shopping malls and the top floors of high-rise buildings, the demand for natural light often results in a large amount of solar energy not being effectively utilized. While meeting the demand for natural light, some solar energy is used to isolate the building from the sun through shading, and some solar energy contributes to the greenhouse effect. In order to meet the comfort requirements, cooling equipment is also needed to regulate the indoor temperature, resulting in a large amount of energy waste.

[0004] In view of the above-mentioned shortcomings, the designer has actively researched and innovated in order to create a light-transmitting photovoltaic thermal device that has greater industrial application value. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a light-transmitting photovoltaic thermal device.

[0006] This utility model discloses a light-transmitting photovoltaic thermal device, comprising a photovoltaic frame, wherein: a light-transmitting insulating backplate is installed inside the photovoltaic frame, a photovoltaic cell string is installed on the upper layer of the light-transmitting insulating backplate through a bonding layer, a heat exchanger is installed on the lower layer of the light-transmitting insulating backplate, the heat exchanger includes a supporting shell, a plurality of spacer fins are distributed inside the supporting shell, the spacer fins form a heat exchange cavity, and flow guide holes are opened in the spacer fins; the supporting shell is located at the front end and rear end of the heat exchange cavity, and an inlet assembly and an outlet assembly are respectively installed thereon; a junction box is installed on the outer side of the photovoltaic frame, and the junction box is electrically connected to the photovoltaic cell string.

[0007] Furthermore, in the aforementioned light-transmitting photovoltaic thermal equipment, the light-transmitting insulating backplate is a transparent epoxy resin board, and the side of the transparent epoxy resin board is coated with an insulating protective layer, which is a silicone layer.

[0008] Furthermore, in the aforementioned light-transmitting photovoltaic thermal equipment, the upper and lower layers of the light-transmitting insulating backplate are each provided with several adhesive grooves, and adhesive media are distributed in the adhesive grooves.

[0009] Furthermore, in the aforementioned light-transmitting photovoltaic thermal device, the bonding layer is a thermosetting EVA sheet layer.

[0010] Furthermore, in the aforementioned light-transmitting photovoltaic thermal device, a support frame is distributed on the outer side of the heat exchanger, and the support frame is connected to the photovoltaic frame.

[0011] Furthermore, in the aforementioned light-transmitting photovoltaic thermal equipment, both the inlet assembly and the outlet assembly include bamboo-joint heads, and a conduction control valve is installed on the bamboo-joint head.

[0012] Furthermore, in the aforementioned light-transmitting photovoltaic thermal device, the photovoltaic frame includes a support base, a support plate extending vertically from the support base, and a fastening edge distributed on the top of the support plate, the fastening edge contacting the edge of the photovoltaic cell string.

[0013] Furthermore, in the aforementioned light-transmitting photovoltaic thermal device, the inner side of the support plate is coated with a bonding adhesive layer.

[0014] By means of the above solution, this utility model has at least the following advantages:

[0015] 1. It adopts a light-transmitting insulating back panel, which can introduce sunlight to achieve daytime lighting assistance, effectively utilize sunlight, and reduce indoor lighting consumption.

[0016] 2. It can draw in solar thermal energy on a daily basis to regulate indoor temperature. In high-temperature environments, the heat exchanger can be activated to dissipate heat while storing thermal energy or performing thermoelectric conversion.

[0017] 3. It does not affect normal photovoltaic power generation and can be integrated into conventional photovoltaic power generation systems.

[0018] 4. The layered layout reduces space occupation and meets the installation requirements of the building's top floor.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a light-transmitting photovoltaic thermal device.

[0021] The meanings of the labels in the figures are as follows.

[0022] 1. Photovoltaic frame 2. Translucent insulating backsheet

[0023] 3 photovoltaic cell strings 4 heat exchangers

[0024] 5. Spacer fins; 6. Heat exchange chamber.

[0025] 7 Junction box 8 Bonding layer Detailed Implementation

[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0027] like Figure 1 The novel light-transmitting photovoltaic (PV) thermal energy device includes a PV frame, unique in that it incorporates a light-transmitting insulating backplate within the frame to allow light to pass through and conduct solar heat. A PV cell string is mounted on the upper layer of the backplate via a bonding layer, facilitating the subsequent conversion of sunlight into electricity. A heat exchanger is installed on the lower layer of the backplate, further converting sunlight into heat. Specifically, the heat exchanger includes a supporting shell containing several spaced fins that form a heat exchange cavity. The fins have flow-guiding holes to facilitate the flow of the heat exchange medium and achieve effective heat exchange. For seamless integration with existing heat exchange piping, the supporting shell is equipped with an inlet assembly at the front end and an outlet assembly at the rear end of the heat exchange cavity. During implementation, a junction box is installed on the outer side of the PV frame, electrically connected to the PV cell string for connection to the photovoltaic conversion system.

[0028] In a preferred embodiment of this invention, the light-transmitting insulating back panel is a transparent epoxy resin board, with an insulating protective layer coated on its sides. This insulating protective layer is a silicone layer. Thus, while meeting the insulation requirements, it offers excellent light transmission and heat conduction, allowing sunlight to be directed downwards. For roof installations, this can supplement indoor lighting. Simultaneously, it can also transfer heat from sunlight into the room, providing auxiliary heating to meet winter heating needs.

[0029] Looking further, both the upper and lower layers of the light-transmitting insulating backsheet have several adhesive grooves containing adhesive medium. This facilitates stable bonding of the various components. Simultaneously, the bonding layer used is a thermosetting EVA sheet layer. This allows for appropriate elevation and provides a certain degree of cushioning. It also creates an insulating gap between the light-transmitting insulating backsheet and the photovoltaic cell string, improving the heat exchange efficiency of the subsequent heat exchanger.

[0030] In practical implementation, considering the installation requirements of certain rooftop skylight integration methods, a support frame can be distributed on the outside of the heat exchanger, connected to the photovoltaic frame. This allows the support frame to be directly embedded into the existing skylight mounting track, achieving stable installation.

[0031] Looking further, both the inlet and outlet assemblies include bamboo-joint heads, on which flow control valves are installed. This allows for a stable and leak-proof connection with the heat exchange pipeline. Simultaneously, flow control can be implemented as needed, facilitating installation and maintenance to control the flow of the medium.

[0032] Meanwhile, the photovoltaic frame used in this invention includes a support base, on which a support plate extends vertically. The top of the support plate has snap-fit ​​edges that contact the edges of the photovoltaic cell string. This provides stable lateral bonding and restraint for each component, resulting in better integration and a stable stacked structural layout. Furthermore, considering positioning assistance during assembly, an adhesive layer can be applied to the inner side of the support plate.

[0033] The working principle of this utility model is as follows:

[0034] Once installed, this utility model allows sunlight to penetrate the room to the maximum extent possible during the day, providing supplementary daytime lighting. Simultaneously, the sun's heat energy can also reach the room through this utility model, providing supplementary heating. In summer, the heat exchanger operates, converting the heat energy provided by thermal radiation into thermoelectricity. Therefore, the sunlight entering the room does not feel scorching; it only serves as supplementary lighting.

[0035] As can be seen from the above textual description and the accompanying drawings, the present invention has the following advantages:

[0036] 1. It adopts a light-transmitting insulating back panel, which can introduce sunlight to achieve daytime lighting assistance, effectively utilize sunlight, and reduce indoor lighting consumption.

[0037] 2. It can draw in solar thermal energy on a daily basis to regulate indoor temperature. In high-temperature environments, the heat exchanger can be activated to dissipate heat while storing thermal energy or performing thermoelectric conversion.

[0038] 3. It does not affect normal photovoltaic power generation and can be integrated into conventional photovoltaic power generation systems.

[0039] 4. The layered layout reduces space occupation and meets the installation requirements of the building's top floor.

[0040] Furthermore, the directions or positional relationships described in this utility model are based on the directions or positional relationships shown in the accompanying drawings. They are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or structure referred to must have a specific orientation, or to operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A light-transmitting photovoltaic thermal device, including a photovoltaic frame, characterized in that: A light-transmitting insulating backplate is installed inside the photovoltaic frame. A photovoltaic cell string is installed on the upper layer of the light-transmitting insulating backplate through a bonding layer. A heat exchanger is installed on the lower layer of the light-transmitting insulating backplate. The heat exchanger includes a supporting shell. A plurality of spacer fins are distributed inside the supporting shell. The spacer fins form a heat exchange cavity. A flow guide hole is opened in the spacer fins. The supporting shell is located at the front end and rear end of the heat exchange cavity and is respectively installed with an inlet assembly and an outlet assembly. A junction box is installed on the outside of the photovoltaic frame. The junction box is electrically connected to the photovoltaic cell string.

2. The light-transmitting photovoltaic thermal device according to claim 1, characterized in that: The light-transmitting insulating backplate is a transparent epoxy resin board, and the sides of the transparent epoxy resin board are coated with an insulating protective layer, which is a silicone layer.

3. The light-transmitting photovoltaic thermal device according to claim 1, characterized in that: The upper and lower layers of the light-transmitting insulating backplate are each provided with several adhesive grooves, and adhesive medium is distributed in the adhesive grooves.

4. The light-transmitting photovoltaic thermal device according to claim 1, characterized in that: The bonding layer is a thermosetting EVA sheet layer.

5. The light-transmitting photovoltaic thermal device according to claim 1, characterized in that: The heat exchanger has a support frame distributed on its outer side, and the support frame is connected to the photovoltaic frame.

6. The light-transmitting photovoltaic thermal device according to claim 1, characterized in that: Both the inlet assembly and the outlet assembly include a bamboo joint head, and a flow control valve is installed on the bamboo joint head.

7. The light-transmitting photovoltaic thermal device according to claim 1, characterized in that: The photovoltaic frame includes a support base, on which a support plate extends vertically. The top of the support plate has fastening edges that contact the edges of the photovoltaic cell string.

8. The light-transmitting photovoltaic thermal device according to claim 7, characterized in that: The inner side of the support plate is coated with a bonding adhesive layer.

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