CN210297636U

CN210297636U - Photovoltaic module

Info

Publication number: CN210297636U
Application number: CN201921780839.6U
Authority: CN
Inventors: 杨志强; 刘俊辉; 郭志球
Original assignee: Jinko Solar Co Ltd; JinkoSolar Holding Co Ltd
Current assignee: Jinko Solar Co Ltd; JinkoSolar Holding Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-04-10
Anticipated expiration: 2029-10-22

Abstract

The present application discloses a photovoltaic assembly, comprising a photovoltaic assembly body, and a photothermal conversion component is connected to the back of the photovoltaic assembly body for converting light passing through the photovoltaic assembly body into heat. The conversion part is also connected with a heat transmission part, and the other end of the heat transmission part is connected with a heat collection part. The above-mentioned photovoltaic modules provided by the present application can cool down the components, ensure that the power generation gain is not reduced, and collect heat for users to use, which can reduce the floor space of photovoltaic and photothermal equipment.

Description

Photovoltaic module

Technical Field

The utility model belongs to the technical field of photovoltaic equipment, especially, relate to a photovoltaic module.

Background

In the prior art, when a photovoltaic module generates electricity in outdoor operation, the overall temperature of the photovoltaic module is far higher than the ambient temperature due to outdoor hot spots, the outdoor hot spot temperature of the module can reach 150 ℃ or even higher, the generation gain of the module is reduced due to the long-term overhigh temperature of the module, and the electrical property of the module is quickly attenuated.

The utilization mode of solar energy comprises the following steps: (1) the light energy is directly converted into electric energy; (2) converting light energy into heat energy; (3) the light energy is converted into heat energy, and the heat energy is converted into electric energy. Generally, a photovoltaic cell is a device for directly converting light energy into electric energy, a solar water heater is a typical application for converting light energy into heat energy, and a steam generator is a device for converting light energy into heat energy and then converting the heat energy into electric energy.

In the outdoor power generation process of the photovoltaic module, except that the solar direct radiation energy generates heat energy, the temperature of the photovoltaic module can be increased in the power generation process, heat is generated, the utilization rate of the photovoltaic cell to the light energy is limited, most of the light energy is consumed in a light and heat mode, and therefore energy waste is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the application provides a photovoltaic module, can guarantee that the power generation gain can not reduce for the subassembly cooling, and collect the heat and supply the user to utilize, can reduce the area of photovoltaic and light and heat equipment.

The utility model provides a pair of photovoltaic module, including the photovoltaic module body, the back connection of photovoltaic module body has the light and heat conversion part for will follow the light conversion who passes in the photovoltaic module body is the heat, the light and heat conversion part still is connected with heat transmission part, heat transmission part's the other end is connected with heat collection part.

Preferably, in the photovoltaic module, the photothermal conversion element includes a pipe through which water flows.

Preferably, in the photovoltaic module, an outer peripheral portion of the duct is surrounded by an aluminum container.

Preferably, in the photovoltaic module, the aluminum container is bonded to the photovoltaic module by using heat-conducting silica gel.

Preferably, in the photovoltaic module, the pipeline is a U-shaped pipe.

Preferably, in the photovoltaic module, a thermocouple is further disposed on a back surface of the aluminum container to monitor a temperature of the aluminum container, and the thermocouple is further electrically connected to a temperature control unit to control a water inlet and a water outlet of the pipe to be opened and collect hot water into the heat collecting unit when the temperature monitored by the thermocouple is higher than a preset temperature.

Preferably, in the photovoltaic module, the front surface of the aluminum container is provided with a light absorption coating at a position below the cell gap of the photovoltaic module body.

Preferably, in the above photovoltaic module, the light absorbing coating is a copper oxide coating, a black nickel coating, and a zinc coating.

Preferably, in the above photovoltaic module, the duct includes an outer glass tube and an inner glass tube, and a vacuum region is formed between the outer glass tube and the inner glass tube.

Preferably, in the photovoltaic module, the photovoltaic module body is a dual-glass photovoltaic module body.

According to the photovoltaic module, the back face of the photovoltaic module body is connected with the photo-thermal conversion component, the photo-thermal conversion component is used for converting light passing through the photovoltaic module body into heat, the photo-thermal conversion component is further connected with the heat transmission component, the other end of the heat transmission component is connected with the heat collection component, therefore, the heat of the photovoltaic module body can be timely transmitted out, the temperature of the module is reduced, power generation gain is guaranteed not to be reduced, the heat collection component is used for collecting the heat for a user to use, effective recycling of the heat is achieved, the functions of the two components are achieved by the aid of the photovoltaic module, and the occupied area of photovoltaic and photo-thermal equipment can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of a photovoltaic module provided herein;

FIG. 2 is a schematic view of a duct employed in an embodiment of a photovoltaic module provided herein;

fig. 3 is a schematic view of a pipe itself employed in an embodiment of the present application.

Detailed Description

The core of this application is that a photovoltaic module is provided, can guarantee that the power generation gain can not reduce for the subassembly cooling, and get up the confession user with the heat and utilize, can reduce the area of photovoltaic and light and heat equipment.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

An embodiment of a photovoltaic module provided by the present application is shown in fig. 1, fig. 1 is a schematic view of a photovoltaic module provided by the present application, the photovoltaic module includes a photovoltaic module body 1, a photo-thermal conversion member 2 is connected to a back surface of the photovoltaic module body 1 for converting light passing through the photovoltaic module body 1 into heat, the photo-thermal conversion member 2 is further connected to a heat transfer member 3, and the other end of the heat transfer member 3 is connected to a heat collection member 4.

It should be noted that, taking a dual-glass assembly as an example, the photovoltaic assembly body includes front glass, glass surface high-transmittance EVA or POE, a battery, back surface high-transmittance or cut-off EVA, POE and back plate surface glass which are sequentially arranged from top to bottom, the embodiment is directed to the situation that heat generated in the working process of the photovoltaic assembly cannot be utilized and the temperature rise of the assembly is caused to generate adverse effects, after the photo-thermal conversion component 2 is added, the light passing through the photovoltaic assembly body 1 can be converted into heat, then the converted heat is transmitted to the heat collecting component 4 by the heat transmission component 3 to be collected, that is, the generated heat leaves the photovoltaic assembly body 1 in time, so as to prevent the photovoltaic assembly body 1 from being heated and aging elements therein too fast, the material of the photo-thermal conversion component 2 is not limited, as long as the light energy irradiated thereon can be converted into heat energy, and the material and shape of the heat transmission member 3 are not limited, and the inside of the heat transmission member 3 can transmit heat through a plurality of liquids including water as a medium, and specifically, with reference to fig. 1, the heat transmission member 3 has a liquid inlet 8 and a liquid outlet 9, and through related control, the liquid with lower temperature is sent into the photothermal conversion member 2 from the liquid inlet 8, and then the liquid contacts the photothermal conversion member 2, the temperature of the liquid itself is raised by the heat of the photothermal conversion member 2, after the temperature is raised to a certain degree, the liquid with higher temperature is controlled to be discharged from the liquid outlet 9, and passes through the heat transmission member 3 to enter the heat collection member 4, and the heat collection member 4 can be a hot water incubator, so that the heat can be used for other purposes, and the temperature on the back side of the photovoltaic module body is prevented from being too high, thus achieving two purposes.

According to the photovoltaic module, the back face of the photovoltaic module body is connected with the photo-thermal conversion component, the light passing through the photovoltaic module body is converted into heat, the photo-thermal conversion component is further connected with the heat transmission component, the other end of the heat transmission component is connected with the heat collection component, therefore, the heat of the photovoltaic module body can be timely transmitted out, the temperature of the module is reduced, the power generation gain is guaranteed not to be reduced, the heat collection component is used for collecting the heat for a user to use, the heat is effectively recycled, the functions of the two components are realized by the aid of the photovoltaic module, and the occupied area of photovoltaic and photo-thermal equipment can be reduced.

In one embodiment of the photovoltaic module, referring to fig. 2, fig. 2 is a schematic view of a duct employed in the embodiment of the photovoltaic module provided in the present application, and the photothermal conversion element 2 may include a duct 201 through which water passes inside. In a further preferred embodiment, the pipeline 201 may be a U-shaped pipe, and may be arranged in a serpentine shape as shown in fig. 2, so as to ensure a larger heating area, collect heat at as many positions as possible, so as to improve the efficiency of heat transfer, and if water flows through the pipeline 201, the cost is lower, the implementation is easier, and the subsequent hot water recycling manner is simpler.

In another embodiment of the photovoltaic module, reference may be made to fig. 2, wherein the outer periphery of the pipe 201 is surrounded by an aluminum container 202, the thermal conductivity of aluminum is 237w/m × k, so that the thermal conductivity is better, further, the aluminum container 202 may be a double-layer ultrathin aluminum sheet structure, the first layer of aluminum sheet is polished mirror-surface aluminum oxide, the reflectivity may reach 90%, the light incident from the front cell string of the module may be reflected back to the back of the module, and if the module is a double-sided double-glass module, the purpose of reducing the back power generation loss may be achieved.

The present application also provides a preferred embodiment, with continued reference to fig. 1, wherein the aluminum container 202 is bonded to the photovoltaic module 1 by using the heat conductive silicone 5, so that the photovoltaic back sheet and the aluminum container can be tightly bonded while conducting heat, and thus the heat generated by the module can be better transferred to the back aluminum container.

The present application further provides another specific embodiment of a photovoltaic module, with continuing reference to fig. 1, wherein a thermocouple 6 is further disposed on the back of the aluminum container 202 for monitoring the temperature of the aluminum container 202, and the thermocouple 6 is further electrically connected to the temperature control component 7 for controlling the water inlet 8 and the water outlet 9 of the pipeline to be opened and collecting the hot water into the heat collecting component 4 when the temperature monitored by the thermocouple 6 is greater than a preset temperature, which can be set according to actual needs, for example, any value between 60 degrees celsius and 70 degrees celsius can be preferred, and this is not limited herein, as long as the heat is timely transferred out to avoid overheating of the photovoltaic module.

In order to improve the light absorption performance of the above embodiment, the present application also provides a preferred embodiment, wherein a light absorption coating is disposed on the front surface of the aluminum container 202 below the cell gap of the photovoltaic module body 1, and further, the light absorption coating may be a copper oxide coating, a black nickel coating, and a zinc coating, which can further improve the efficiency of absorbing light and heat.

In order to avoid heat loss, the specific embodiment shown in fig. 3 may also be adopted, and fig. 3 is a schematic view of a pipeline itself adopted in the embodiment of the present application, where the pipeline 201 includes an outer layer glass pipe 2011 and an inner layer glass pipe 2012, a vacuum region 2013 is provided between the two layer glass pipes, and in the pipeline with the two layer structure, the vacuum region is provided in the middle of the pipeline, so that heat loss caused by air convection between the temperature of water flow in the inner pipeline and the outside can be avoided, heat can be better transmitted to a specified region to be collected, and a user can use the heat in daily life, such as bathing or washing dishes.

In each of the above-mentioned photovoltaic module embodiments, photovoltaic module body 1 can be preferably double-glass photovoltaic module body, and this is a preferred only certainly, can also select other arbitrary type photovoltaic module according to actual need, can all realize the recycle of the heat that produces when photovoltaic conversion with the scheme of this application.

In summary, the embodiment provided by the application is that the vacuum container is arranged on the back surface of the dual-glass assembly, the cooling pipe is arranged in the container, the temperature in the assembly is transferred to the water flow cooling pipe through the back plate glass in a heat transfer mode, the water flow switch of the cooling pipe is controlled through the temperature controller,

the previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a photovoltaic module which characterized in that, includes the photovoltaic module body, the back connection of photovoltaic module body has the light and heat conversion part for will follow the light conversion who passes in the photovoltaic module body is the heat, the light and heat conversion part still is connected with heat transfer part, heat transfer part's the other end is connected with heat collection part.

2. The photovoltaic module of claim 1, wherein the photothermal conversion element comprises a tube through which water passes.

3. The photovoltaic module of claim 2, wherein the outer periphery of the duct is surrounded by an aluminum container.

4. The photovoltaic module of claim 3, wherein the aluminum container is bonded to the photovoltaic module using thermally conductive silicone.

5. The photovoltaic module of claim 2, wherein the duct is a U-shaped duct.

6. The photovoltaic module according to claim 3, wherein a thermocouple is further provided on the back of the aluminum container for monitoring the temperature of the aluminum container, and the thermocouple is further electrically connected to a temperature control member for controlling the water inlet and outlet of the pipe to be opened and collecting the hot water into the heat collecting member when the temperature monitored by the thermocouple is greater than a preset temperature.

7. The photovoltaic module of claim 3, wherein the front side of the aluminum container is provided with a light absorbing coating at a location below the cell gap of the photovoltaic module body.

8. The photovoltaic module of claim 7 wherein the light absorbing coating is a copper oxide coating, a black nickel coating, and a zinc coating.

9. The photovoltaic module of claim 2, wherein the duct comprises an outer glass tube and an inner glass tube with a vacuum region therebetween.

10. The photovoltaic module of any of claims 1-9 wherein the photovoltaic module body is a dual glass photovoltaic module body.