Photoelectric and photo-thermal integrated equipment

By designing an integrated photovoltaic and photothermal device, and utilizing a combination of transparent photovoltaic panels and solar collectors, the problem of the single function of traditional solar energy equipment is solved, realizing the synergistic work of photovoltaic and photothermal technologies, and improving the utilization efficiency of solar energy resources and the performance of the equipment.

CN223709940UActive Publication Date: 2025-12-23ZHEJIANG NORMAL UNIV
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Patent Information

Application Number
CN202520120511.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-12-23
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Traditional solar energy equipment has a single function and fails to utilize both the electrical and thermal energy of sunlight, resulting in low resource utilization, high installation costs and space occupation. The unoptimized surface design of photovoltaic modules leads to low photoelectric conversion efficiency, especially under low light conditions.

Method used

Design a photovoltaic and photothermal integrated device, comprising a transparent solar photovoltaic panel, a collector, and a water tank. The surface of the photovoltaic panel is fabricated with micro-nano structures, combined with a heat transfer plate and a heat absorber. The water tank is designed with a hexagonal water channel to achieve synergistic operation of photovoltaic and photothermal technologies, thereby improving photon absorption and heat transfer efficiency.

Benefits of technology

It achieves synergistic operation of photovoltaic and photothermal energy, improves the comprehensive utilization efficiency of solar energy resources, enhances the efficiency of photovoltaic and photothermal conversion, reduces the loss from mixing hot and cold water, and improves the overall performance of the equipment.

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Abstract

The utility model discloses photoelectric and photo-thermal integrated equipment which comprises a water tank, a solar photovoltaic panel, a heat collector and a heat preservation layer. The solar photovoltaic panel is arranged at the front end of the heat collector, and the water tank is installed at the rear end of the solar photovoltaic panel. The water tank, the heat collector and the solar photovoltaic panel are all fixed to the inner side of the heat preservation layer. According to the utility model, the solar photovoltaic panel is used for photoelectric conversion, and meanwhile, the heat collector is combined for photo-thermal conversion, so that the cooperative work of photoelectricity and photo-thermal is realized; electric energy and heat energy are simultaneously generated in the same equipment, solar energy resources are fully utilized, and the comprehensive utilization efficiency of the equipment is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of photoelectric photo-thermal equipment, specifically to a kind of photoelectric photo-thermal integrated equipment. BACKGROUND

[0002] In prior art, solar energy equipment is mainly single function, and the following problems exist generally:

[0003] Traditional solar energy equipment mostly realizes single photoelectric conversion (such as solar photovoltaic power generation) or photo-thermal conversion (such as solar water heater). This kind of equipment fails to utilize the electric energy and heat energy of sunlight simultaneously, resulting in low utilization rate of solar energy resources; when using traditional equipment, users often need to install photovoltaic power generation equipment and water heating equipment respectively, which not only increases installation cost, but also occupies more space, and is inconvenient to use. Single-function solar energy equipment fails to realize photoelectric and photo-thermal collaborative work, resulting in energy efficiency decline of the equipment under cloudy or low-light conditions.

[0004] The surface layer of traditional photovoltaic module is simply designed, and cannot be optimized according to the refraction and reflection characteristics of light, resulting in that part of photons are not absorbed in photovoltaic cell, and photoelectric conversion efficiency is limited. Light reflection and light loss are easily formed on the surface of photovoltaic module, further reducing the overall performance of the equipment, especially in low-light environment, the effect is more obvious. SUMMARY

[0005] The technical problem to be solved by the utility model is to provide a kind of photoelectric photo-thermal integrated equipment to solve the problems existing in the background art.

[0006] The photoelectric photo-thermal integrated equipment of the utility model is realized by the following technical scheme, comprising a water tank, a solar photovoltaic panel, a collector and a thermal insulation layer.

[0007] The solar photovoltaic panel is arranged at the front end of the collector, and the water tank is installed at the rear end of the solar photovoltaic panel; the water tank, the collector and the solar photovoltaic panel are all fixed to the inner side of the thermal insulation layer.

[0008] As a preferred technical scheme, the surface layer of the solar photovoltaic panel is transparent, and the surface of the solar photovoltaic panel is manufactured with micro-nano structure texture, which changes the refraction and reflection path of light, so that the light is reflected multiple times inside the cell, increases the probability of photon absorption, thereby improving the efficiency of light absorption.

[0009] As a preferred technical scheme, a heat transfer plate is arranged between the solar photovoltaic panel and the collector, and the collector comprises a collector shell and a heat absorber, and the heat absorber is arranged on the inner side of the collector shell; one side of the heat absorber is in contact with the heat transfer plate, and the other side of the heat absorber is in contact with the water tank.

[0010] As a preferred technical scheme, the water tank is internally designed as a hexagonal water path, so that cold water and hot water entering the water tank can be stored in a layered manner.

[0011] As a preferred technical scheme, the heat-absorbing body is formed by splicing a plurality of heat-collecting plate ceramic pieces.

[0012] The utility model discloses a beneficial effect is:

[0013] The utility model discloses a solar photovoltaic panel is used for photoelectric conversion, and combines the heat collector for photo-thermal conversion simultaneously, realizes the collaborative work of photoelectricity and light heat, generates electric energy and heat energy in the same equipment simultaneously, makes full use of solar energy resources, improves the comprehensive utilization efficiency of equipment.

[0014] The utility model discloses a photovoltaic panel surface layer is transparent, and its surface has made micro - nano texture structure, can change the refraction and reflection path of light, ensures light in photovoltaic cell to pass through multiple reflections, thereby increases the probability of photon absorption, improves photoelectric conversion efficiency, through setting up the heat transfer plate between photovoltaic panel and heat collector, and designing heat-absorbing body and heat-absorbing coating in heat collector, can maximum degree absorption heat energy and transfer to the water tank, improves photo-thermal conversion efficiency.

[0015] The utility model discloses a water tank internally adopts hexagonal water path, utilizes the principle that hot water density is smaller and will float upwards, makes cold water and hot water can be natural stratification storage, avoids cold hot water mixing and causes heat loss, ensures that the output hot water temperature is higher, the pipeline design of water tank inside is compact, has shortened the pipeline length, reduced the time of heat loss in the pipeline, reduced the possibility of heat loss. ACCURATE DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is the explosion structure schematic diagram of the utility model;

[0019] Figure 3 It is the solar photovoltaic panel structure schematic diagram of the utility model;

[0020] Figure 4 It is the heat preservation layer structure schematic diagram of the utility model;

[0021] Figure 5The utility model discloses a heat collecting ceramic plate structure schematic diagram.

[0022] Mark explanation:

[0023] 1, water tank;2, solar photovoltaic board;3, heat collecting body shell;4, heat collecting plate ceramic piece;5, heat absorbing plate;6, heat preservation layer. Specific implementation

[0024] All features disclosed in the specification, or steps in all methods or processes disclosed, can be combined in any manner, except where features and / or steps are mutually exclusive.

[0025] As Figures 1-5 Indicated, the utility model discloses a photoelectric light heat integration equipment, including water tank 1, solar photovoltaic board 2, heat collector and heat preservation layer 6;

[0026] Solar photovoltaic board 2 sets up at the front end of heat collector, and water tank 1 is installed at the rear end of solar photovoltaic board 2, water tank 1, heat collector and solar photovoltaic board 2 are all fixed to the inside of heat preservation layer 6.

[0027] In order to improve the efficiency of absorbing light, in the embodiment, the surface of solar photovoltaic board 2 is transparent, and the surface of solar photovoltaic board 2 is manufactured with micro-nano structure texture, the light is reflected for many times in the cell by changing the refraction and reflection path of light, the probability of absorbing photons is increased, so that the efficiency of absorbing light is improved.

[0028] Among them, heat transfer plate is arranged between solar photovoltaic board 2 and heat collector, and heat collector includes heat collecting body shell 3 and heat absorbing body, and heat absorbing body is provided with heat absorbing coating, heat absorbing body is arranged at the inside of heat collecting body shell 3, one side of heat absorbing body contacts heat transfer plate, and the other side of heat absorbing body contacts water tank 1.

[0029] The utility model discloses the principle that hot water density is smaller and will float upwards, the inside of water tank 1 is designed into hexagonal waterway, so that the cold water and hot water of entering water tank 1 can be stored according to the way of stratification, reduces the heat loss caused by cold and hot water mixing, ensures that hot water temperature is higher, the length of pipeline inside water tank 1 is shortened, makes pipeline more compact, reduces the time of heat staying in pipeline, reduces the possibility of heat loss.

[0030] In addition, the heat absorbing body is formed by a plurality of heat collecting plate ceramic pieces 4, the heat collecting plate ceramic pieces 4 are stable in performance, corrosion-resistant, non-aging, salt-tolerant, and have excellent heat absorption performance and long service life.

[0031] The utility model discloses a combination of photoelectric circuit and light heat route, when the sunlight irradiates on the equipment, photovoltaic module and collector work simultaneously, photovoltaic module generates direct current, and the direct current cable transmission is gathered to the current collection box, and then flows into the inverter conversion for alternating current, the sunlight irradiates on the collector, and is absorbed by the heat absorption coating and is converted into heat energy, and the heat transfer medium temperature in the collector rises, and the density of water is small after being heated in the collector, and forms natural convection, and the hot water rises into the pipeline, and the low temperature water is supplemented to continue being heated, and forms the sustained heat transfer process.

[0032] The above is only the specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any change or replacement not through the creative labor thought should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be the protection scope limited by the patent claim.

Claims

1. A photoelectric and photothermal integrated device, characterized in that: The water tank (1), the solar photovoltaic panel (2), the heat collector and the thermal insulation layer (6) are included. The solar photovoltaic panel (2) is arranged at the front end of the heat collector, and the water tank (1) is installed at the rear end of the solar photovoltaic panel (2); the water tank (1), the heat collector and the solar photovoltaic panel (2) are all fixed to the inner side of the thermal insulation layer (6).

2. The photoelectric and photo-thermal integrated device according to claim 1, characterized in that: The surface of the solar photovoltaic panel (2) is transparent, and the surface of the solar photovoltaic panel (2) is provided with micro-nano structure texture, so that the light is reflected multiple times in the battery by changing the refraction and reflection path of the light, the probability of the light being absorbed is increased, and the efficiency of the light absorption is improved.

3. The photoelectric and photo-thermal integrated device according to claim 1, characterized in that: The heat transfer plate is arranged between the solar photovoltaic panel (2) and the heat collector, the heat collector includes the heat collector shell (3) and the heat absorbing body, the heat absorbing body is arranged at the inner side of the heat collector shell (3); one side of the heat absorbing body is in contact with the heat transfer plate, and the other side of the heat absorbing body is in contact with the water tank (1).

4. The photoelectric and photo-thermal integrated device according to claim 1, characterized in that: The inside of the water tank (1) is designed as a hexagonal water channel, so that the cold water and the hot water entering the water tank (1) can be stored in a layered manner.

5. The photoelectric and photo-thermal integrated device according to claim 3, characterized in that: The heat absorbing body is composed of a plurality of heat collecting plate ceramic pieces (4).