CN107086252A - A New Type of PVT Component - Google Patents

Abstract

The invention discloses a new type of PVT assembly, which includes a solar cell assembly and a back plate body, and the edge plate body of the back plate body is sealed and fixed to the back plate body of the solar cell assembly, and the back plate An airtight middle cavity is formed between the board body and the back board body of the solar cell module, and an exhaust port and an air inlet are respectively arranged on the front and rear end edge board bodies of the back board body, and the exhaust port and the The air inlets are all in communication with the middle cavity, and an air circulation channel is formed among the air inlets, the middle cavity and the exhaust port. The novel PVT component can quickly dissipate the heat generated by the temperature rise of the photovoltaic component during operation, avoiding its influence on power generation efficiency and prolonging the service life of the component.

Description

A New Type of PVT Component

Technical field:

The invention relates to a novel PVT assembly and relates to the technical field of new energy.

Background technique:

Photovoltaic modules currently in use on the market, due to their own structure and working characteristics, have a negative temperature coefficient relationship between the generated power and temperature of the modules, and the higher the temperature, the lower the power generation, such as the temperature coefficient of crystalline silicon modules It is -0.41%/℃, and it is quite common for the temperature to rise by 40 degrees in actual use. The temperature rise will cause the heat generated by the body of the photovoltaic module to not be dissipated in time, which will affect its power generation efficiency.

Invention content:

The technical problem to be solved by the present invention is to provide a PVT module with simple structure, convenient installation and manufacture, and better heat dissipation effect.

In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

A new type of PVT assembly, comprising a solar cell assembly, a back plate body, the edge plate body of the back plate body is sealed and connected with the back plate body of the solar cell assembly, and the back plate body is connected to the solar cell assembly An airtight middle cavity is formed between the back panels of the battery assembly, and an exhaust port and an air inlet are respectively provided on the front and rear end edge panels of the back panel body, and the exhaust port and the air inlet are both In communication with the middle cavity, an airflow circulation channel is formed among the air inlet, the middle cavity and the exhaust port.

Preferably, an airflow guiding device is provided in the middle cavity to guide the airflow from the air inlet to the air outlet.

Preferably, the airflow guiding device is configured as a guiding mechanism having a plurality of airflow path guiding channels.

Preferably, the airflow path guiding flow channel is set in one or more combinations of straight, curved, or multi-bent.

Preferably, the airflow guiding device is configured as a corrugated structure, and the corrugated structure is disposed on a side of the back plate body facing the back plate body of the solar cell module.

Preferably, the corrugated structure is in close contact with the back plate of the solar cell module, and multiple independent airtight spaces are formed between the corrugated structure and the back plate of the solar cell module, and the independent airtight The upper and lower ends of the space are respectively connected to the exhaust port and the air intake port.

Preferably, both the exhaust port and the air inlet are configured as a porous structure including a plurality of air holes, and the upper and lower ends of the independent enclosed space communicate with the corresponding air holes of the air outlet and the air holes of the air inlet respectively. A plurality of single airflow circulation channels are formed between the plurality of enclosed spaces and vent holes.

Preferably, the air holes of the plurality of air outlets are arranged linearly at intervals, and the direction of the linear arrangement is parallel to the top edge of the backplane body.

Preferably, the ventilation holes of the plurality of air inlets are arranged linearly at intervals, and the direction of the linear arrangement is parallel to the bottom edge of the backplane body.

Preferably, dust-proof filter screens are provided at the openings of the ventilation holes.

Compared with the prior art, the present invention is beneficial in that: the novel PVT assembly adopts a sealing back plate on the back plate of the photovoltaic module, and an air inlet and an exhaust hole are arranged on the upper and lower parts of the sealing back plate, Therefore, a chimney effect of rapid heat dissipation is formed in the back plate, and the heat generated by the temperature rise of the photovoltaic module is quickly dissipated to prevent it from affecting the power generation efficiency of the photovoltaic module, thus effectively improving the power generation efficiency of the photovoltaic module and prolonging the service life of the module. Therefore, it has high practicability and economic benefits, and is suitable for popularization and application.

Description of drawings:

Below in conjunction with accompanying drawing, the present invention is further described:

Fig. 1 is the side sectional structure schematic diagram when the present invention is installed;

Fig. 2 is a schematic view of the front structure of the present invention.

detailed description:

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work fall within the protection scope of the present invention:

A new type of PVT assembly as shown in Figure 1 and Figure 2, including a solar cell assembly 1, a back panel body 2, between the edge panel body of the back panel body 2 and the back panel body of the solar cell assembly 1 Sealed connection and fixed, the airtight middle cavity is formed between the back plate body 2 and the back plate body of the solar cell module 1, and the front and rear end edge plates of the back plate body 2 are respectively provided with exhaust air Port 3 and air inlet 4, the exhaust port 3 and air inlet 4 are all communicated with the middle cavity, and an airflow circulation channel is formed between the air inlet 4, the middle cavity and the exhaust port 3, as a preferred Embodiment, the air inlet and exhaust port are set as a porous structure including a plurality of air holes, and then effectively improve the air flow and heat dissipation effect, and further, as a preferred embodiment, the air inlet 4, The air vents 3 are provided with dust-proof filter screens to prevent too much dust from entering the middle cavity and affecting the air circulation effect.

As a preferred implementation in this embodiment, an airflow guiding device that guides the airflow from the air inlet 4 to the exhaust port 3 is provided in the middle cavity, further, the airflow guiding device is set to have multiple The air flow path guides the guide mechanism of the flow channel, through the setting of the guide mechanism of multiple air flow paths, thus effectively improving the flow rate of the air flow from the air inlet to the exhaust port, improving the circulation efficiency, and then effectively improving the heat dissipation effect.

Further, in order to improve the heat dissipation effect, the airflow path guide channel is set in one or more combination path forms among straight, curved or multi-bent.

In addition, the airflow guiding device is set as a corrugated structure 5, and the corrugated structure is set on the side of the back plate body 2 facing the back plate body of the solar cell module 1, and as a preferred embodiment, the corrugated structure 5 It is in close contact with the back panel of the solar cell module 1, and a plurality of independent enclosed spaces 6 are formed between the corrugated structure 5 and the back panel of the solar cell module 1, and the independent enclosed spaces 6 The upper and lower ends are respectively connected to the ventilation holes of the exhaust port 3 and the air inlet 4, and a plurality of single airflow circulation channels are formed between the plurality of enclosed spaces 6 and the ventilation holes 7. The corrugated structure is convenient for production and installation, and is convenient for later maintenance and cleaning. In addition, the multiple single air circulation channels in the corrugated structure can increase the speed of air circulation faster and more effectively, and the heat dissipation efficiency is higher.

In order to improve heat dissipation efficiency, on the basis of the above-mentioned corrugated structure, the ventilation holes 7 of the multiple air outlets 3 are arranged in a straight line at intervals, and the direction of the linear arrangement is arranged parallel to the top edge of the backplane body 2, and the multiple air holes 7 are arranged in parallel with the top edge of the backplane body 2. The ventilation holes 7 of the gas ports 4 are arranged in a straight line according to the pitch, and the direction of the straight line arrangement is arranged parallel to the bottom edge of the backboard body 2. Therefore, in practical applications, the linear arrangement of the air intake holes and the exhaust holes are aligned with the corresponding corrugated structure. The positions of the strip grooves are corresponding, so the air circulation efficiency is higher and the heat dissipation effect is better.

Therefore, in practical applications, since the photovoltaic modules are installed at a certain inclination angle after installation, the heat generated by the photovoltaic modules during normal operation will rise along the module body, and due to the contact between the backplane body and the photovoltaic module A sealed cavity is formed between the backplane bodies, and there are connected air inlets and exhaust outlets on the upper and lower parts respectively, so when the heat generated by the components is dissipated, the heat will follow the airflow circulation channel from the inlet to the air. The air flow from the air port to the exhaust port can effectively promote the dissipation of heat, and the air intake will supplement the airflow, so the air circulation flow system will be formed between the entire backplane and the air intake and exhaust ports. , effectively improve the dissipation of heat generated in the module, reduce the impact of temperature rise on power generation efficiency, and improve the power generation efficiency of the module.

The above-mentioned new type of PVT module uses a sealed back plate on the back plate of the photovoltaic module, and air intake holes and exhaust holes are set on the upper and lower parts of the sealed back plate, thus forming a chimney effect that quickly dissipates heat in the back plate, and quickly dissipates photovoltaic power. The heat generated by the temperature rise of the components during operation is avoided to affect the power generation efficiency, thus effectively improving the power generation efficiency and prolonging the service life of the components.

It should be emphasized that: the above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are valid. Still belong to the scope of the technical solution of the present invention.

Claims (10)

1. a kind of new PVT components, it is characterised in that：Including solar cell module（1）, backboard plate body（2）, the backboard Plate body（2）Edge plate body and solar cell module（1）Back side plate body between be tightly connected and fixed, the backboard plate body （2）With solar cell module（1）Back side plate body between form closed central cavity, in the backboard plate body（2）Before Exhaust outlet is respectively equipped with back edge plate body（3）And air inlet（4）, the exhaust outlet（3）And air inlet（4）With in Portion's cavity connection, the air inlet（4）, central cavity and exhaust outlet（3）Between formed airflow circulating passage.

2. a kind of new PVT components according to claim 1, it is characterised in that：It is provided with the central cavity by gas Flow from air inlet（4）It is oriented to exhaust outlet（3）Airflow guiding device.

3. a kind of new PVT components according to claim 2, it is characterised in that：The airflow guiding device is set to Guiding mechanism with multiple air flow path pilot flows.

4. a kind of new PVT components according to claim 3, it is characterised in that：The air flow path pilot flow is set It is set to one or more combinatorial path forms in linear pattern, shaped form or many bending-types.

5. a kind of new PVT components according to claim 2, it is characterised in that：The airflow guiding device is set to Corrugated structure（5）, the corrugated structure is arranged on the backboard plate body（2）Towards solar cell module（1）Back plate body Side.

6. a kind of new PVT components according to claim 5, it is characterised in that：The corrugated structure（5）With solar energy Battery component（1）Back plate body between tight abutment contact, and the corrugated structure（5）With solar cell module（1）'s Multiple independent confined spaces are formed between the plate body of back（6）, the independent confined space（6）Upper and lower side be respectively communicated with row Gas port（3）, air inlet（4）.

7. a kind of new PVT components according to claim 6, it is characterised in that：The exhaust outlet（3）With air inlet （4）It is disposed as including multiple passages（7）Loose structure, the independent confined space（6）Upper and lower side be respectively communicated with Corresponding exhaust outlet（3）Passage（7）And air inlet（4）Passage（7）, multiple confined spaces（6）, passage （7）Between form multiple single airflow circulating passages.

8. a kind of new PVT components according to claim 7, it is characterised in that：Multiple exhaust outlets（3）Ventilation Hole（7）It is arranged in a straight line by spacing, its direction arranged in a straight line and backboard plate body（2）Top edge be arranged in parallel.

9. a kind of new PVT components according to claim 7, it is characterised in that：Multiple air inlets（4）Ventilation Hole（7）It is arranged in a straight line by spacing, its direction arranged in a straight line and backboard plate body（2）Bottom margin be arranged in parallel.

10. a kind of new PVT components according to claim 7, it is characterised in that：The passage（7）It is equal at aperture Provided with anti-dust filter mesh.