CN212381177U

CN212381177U - Photo-thermal solar thin film battery and system

Info

Publication number: CN212381177U
Application number: CN202021384372.6U
Authority: CN
Inventors: 杨洋
Original assignee: Tibet Zhanen New Energy Technology Co ltd
Current assignee: Tibet Zhanen New Energy Technology Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-01-19
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses a light and heat solar energy thin film battery contains: a conductive glass; the conductive film is deposited on the back surface of the conductive glass; the back plate is adhered to the conductive film through an adhesive covering the surface of the conductive film; the heat collecting plate is arranged to be attached to and cover one surface of the back plate far away from the conductive film; the collector is arranged close to the heat collecting plate, and heat-conducting media flow in the collector; and a terminal block electrically connected to the conductive film. The photo-thermal solar thin film battery not only improves the power generation efficiency, but also reasonably utilizes the heat. The utility model discloses provide an use this optothermal solar thin film battery's optothermal solar energy system simultaneously.

Description

Photo-thermal solar thin film battery and system

Technical Field

The utility model relates to a solar cell technical field, in particular to improve generating efficiency's optothermal solar thin film battery and contain this optothermal solar thin film battery's power supply heating system.

Background

The solar thin-film battery has the advantages of environmental protection, small mass, thin thickness, flexibility and the like, and can be widely applied to various fields of factories, commercial buildings, houses and the like. As shown in fig. 1, the solar thin film cell generally faces the sunlight with the front surface of a conductive glass 1, and a transparent conductive film 2 is deposited with the back surface thereof as a substrate, and then is adhered to a back sheet 4 by an adhesive 3 to constitute the back surface of the solar thin film cell. When the solar thin film cell is irradiated, sunlight penetrates through the conductive glass 1 to enter the conductive thin film 2 and is converted into electric energy in the conductive thin film 2, and current enters a junction box 5 arranged on the back surface of the back plate 4 through an electrode (not shown in the figure), and then direct current is output to an inverter for use. However, the photoelectric conversion rate of the conventional solar thin film cell is less than 17%, and the remaining 83% of energy is converted into heat to be dissipated to the environment, which not only causes energy waste, but also shortens the service life of the solar thin film cell due to long-term operation at high temperature.

Therefore, how to reasonably utilize energy, improve the power generation efficiency of the solar thin-film battery and prolong the service life of the solar thin-film battery becomes a problem to be solved in the field of solar batteries.

SUMMERY OF THE UTILITY MODEL

In order to solve the prior technical problem, the utility model provides a can improve the generating efficiency, can make energy rational utilization's light and heat solar film battery again. The utility model discloses provide a power supply heating system who contains this optothermal solar energy thin film battery simultaneously

The foundation the utility model discloses a light and heat solar thin film battery contains:

a conductive glass;

the conductive film is deposited on the back surface of the conductive glass;

the back plate is adhered to the conductive film through an adhesive covering the surface of the conductive film;

the heat collecting plate is arranged to be attached to and cover one surface of the back plate far away from the conductive film;

the collector is arranged close to the heat collecting plate, and heat-conducting media flow in the collector; and

and the junction box is electrically connected to the conductive film.

According to the utility model discloses an embodiment, light and heat solar energy thin film battery contains a plurality of heat conduction strips, and the heat conduction strip is arranged in the heat collection plate at equidistant one side of keeping away from the backplate to the setting is hugged closely with the collector to the one end of heat conduction strip.

According to the utility model discloses an embodiment, the thermal-arrest board passes through the gluing agent and pastes to the backplate, and the heat conduction strip passes through the gluing agent and pastes to the thermal-arrest board.

According to an embodiment of the present invention, the heat collecting plate is integrally formed.

According to the utility model discloses an embodiment, the heat collection plate is formed by the concatenation of polylith subset hot plate, and different subset hot plates are connected to the heat conduction strip.

According to an embodiment of the present invention, the heat collecting plate is a metal plate.

According to the utility model discloses an embodiment, gluing agent is EVA membrane or PVB membrane.

According to an embodiment of the present invention, the heat conducting strip is made of a polymer heat conducting material.

According to the utility model discloses an embodiment, light and heat solar energy thin film battery contains the shell, and the shell contains the recess that is formed by bottom plate and frame, and the recess sets up to hold conductive glass, conductive film, backplate, thermal-arrest board, collector, terminal box and heat conduction strip.

The foundation the utility model discloses, a optothermal solar system is provided, this optothermal solar system contains above-mentioned optothermal solar thin film battery.

Due to the adoption of the technical scheme, compared with the prior art, the utility model have the following advantage:

1. the heat generated by the solar thin-film cell is uniformly transferred to the heat collecting plate and then taken away by the heat conducting medium in the collecting pipe, so that the temperature of the solar thin-film cell is effectively reduced, and the power generation efficiency is improved;

2. the solar thin-film battery is ensured to work at an ideal working temperature for a long time, and the service life is prolonged;

3. the heat-conducting medium carrying heat can be used for building heating or replacing a traditional solar water heating system to provide hot water, so that energy sources are reasonably utilized.

Drawings

FIG. 1 shows a schematic diagram of one embodiment of a conventional solar thin film cell;

fig. 2 shows a schematic view of an embodiment of a photo-thermal solar thin film cell according to the invention.

In the figure:

the solar heat collector comprises 1 conductive glass, 2 conductive films, 3 adhesives, 4 back plates, 5 junction boxes, 6 heat collecting plates, 7 collecting pipes, 8 heat conducting strips, 9 shells, 91 bottom plates and 92 side frames.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 2, the photo-thermal solar thin film battery generally comprises a conductive glass 1, a conductive thin film 2, an adhesive 3, a back plate 4, a heat collecting plate 6 and a junction box 5 electrically connected with the conductive thin film 2, which are stacked in sequence. Specifically, the front surface of the conductive glass 1 is placed toward the sunlight in an operating state, and the transparent conductive film 2 is deposited on the back surface thereof. The conductive film 2 can be prepared using a process commonly used in the art, such as sequentially depositing three layers of a-Si of p-type, i-type, and n-type and evaporating metal electrode aluminum (Al). The surface of the conductive film 2 is covered with an adhesive 3 for adhering the back plate 4 to the conductive film 2. In the embodiment of the present invention, the adhesive 3 can be an EVA (polyethylene-polyvinyl acetate copolymer) film, a PVB (polyvinyl butyral) film, or other adhesive films with high adhesion, good optical performance and good thermal conductivity. The junction box 5 may be installed at a side of the heat collecting plate 6 away from the back plate 4.

The heat collecting plate 6 is disposed to closely cover the surface of the back plate 4 away from the conductive film 2, so as to collect the excessive heat from the back plate 4 in time. The header 7 may be arranged against the heat collecting plate 6, the heat sub-collector plate 6 being transferred to the header 7 and thereby being carried away by the heat conducting medium in the header 7.

Preferably, the photo-thermal solar thin film battery according to the present invention may further comprise a heat conducting strip 8. A plurality of heat conduction bars 8 are arranged at equal intervals on a side of the heat collecting plate 6 remote from the back plate 4 and at least a portion is disposed closely to the header 7 so as to uniformly absorb heat of the heat collecting plate 6 and transfer it to the header 7. The heat conducting strips 8 can be made of high-molecular heat conducting materials or other materials with good heat conducting performance. The heat conduction bar 8 may be adhered to the heat collecting plate 6 using the adhesive 3, and may be fixed to the heat collecting plate 6 by other coupling means commonly used in the art.

The heat collecting plate 6 may be a metal plate or other plate-like object with good heat conducting property. In an embodiment of the present invention, the heat collecting plate 6 is an integrally formed panel, the header 7 is disposed closely to one side of the heat collecting plate 6, and the plurality of heat conducting strips 8 are disposed closely to the heat collecting plate 6 at equal intervals along a direction perpendicular to the header 7, so as to transfer heat away from the position of the header 7 on the heat collecting plate 6 to the header 7. In another embodiment of the present invention, the heat collecting plate 6 can also be formed by splicing a plurality of sub-heat collecting plates. For example, as shown in fig. 2, two sub-heat collecting plates are arranged side by side to form a heat collecting plate 6, a header 7 is arranged close to one side of one sub-heat collecting plate, a plurality of heat conducting bars 8 are arranged close to the sub-heat collecting plate at equal intervals in a direction perpendicular to the header 7 and extend to the other sub-heat collecting plate, and heat of the other sub-heat collecting plate far away from the header 7 is transferred to the header 7. The volume of the sub-heat collecting plate can be far smaller than that of the whole heat collecting plate 6, and the processing and the forming are facilitated.

The photo-thermal solar thin film cell may also comprise a housing 9. The housing 9 comprises a bottom plate 91 and a frame 92, the bottom plate 91 and the frame 92 together forming a recess to accommodate the conductive glass 1, the conductive film 2, the back plate 3, the heat collecting plate 6, the header 7, the junction box 5 and the heat conducting bars 8. Wherein the frame 62 is provided with holes allowing the headers 7 to pass through.

Use the utility model discloses a light and heat solar energy thin film battery, it generates electricity to enter into conductive film 2 from conductive glass 1 when the sun ray, and the generating current enters into terminal box 5 output direct current to dc-to-ac converter (not shown in the figure) by the electrode and supplies the use. In the power generation process, heat generated by electron collision is transmitted to the back plate 4 through the adhesive 3, the back plate 4, the heat collecting plate 6 and the heat conducting strips 8 are tightly attached together through the adhesive 3, the heat on the back plate 4 can be transmitted to the collecting pipe 7 through the heat collecting plate 6 and the heat conducting strips 8, and then the heat is transmitted to the heat insulation box by the heat conducting medium 8 in the collecting pipe 7 to be stored or is provided for a building heating system or a solar water heating system to be used. The photo-thermal solar thin film battery with the structure is convenient to assemble, has the dual advantages of solar thin film power generation and heat supply, greatly saves the manufacturing and using cost, and improves the thermoelectric system efficiency.

The above embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A photo-thermal solar thin film cell, comprising:

a conductive glass;

the conductive film is deposited on the back surface of the conductive glass;

the heat collecting plate is arranged to be attached to and cover one surface, far away from the conductive film, of the back plate;

a header disposed in close proximity to the heat collection plate and having a heat transfer medium flowing therein; and

a junction box electrically connected to the conductive film.

2. The photo-thermal solar thin film cell according to claim 1, wherein the photo-thermal solar thin film cell comprises a plurality of heat conducting strips, the heat conducting strips are arranged on the surface of the heat collecting plate away from the back plate at equal intervals, and one ends of the heat conducting strips are arranged to be close to the header.

3. The photo-thermal solar thin film cell according to claim 2, wherein the heat collecting plate is adhered to the back plate by the adhesive, and the heat conducting bar is adhered to the heat collecting plate by the adhesive.

4. The photo-thermal solar thin film cell according to claim 1, wherein the heat collecting plate is integrally formed.

5. The photo-thermal solar thin film cell according to claim 2, wherein the heat collection plate is formed by splicing a plurality of sub-heat collection plates, and the heat conduction strip connects different sub-heat collection plates.

6. The photo-thermal solar thin film cell according to claim 1, wherein the heat collecting plate is a metal plate.

7. The photo-thermal solar thin film cell according to claim 3, wherein the adhesive is an EVA film or a PVB film.

8. The photo-thermal solar thin film cell of claim 1, wherein the thermal conductive strips are made of a high molecular thermal conductive material.

9. The photo-thermal solar thin film cell according to claim 8, comprising a housing comprising a recess formed by a bottom plate and a frame, said recess being arranged to accommodate said electrically conductive glass, said electrically conductive film, said back plate, said heat collecting plate, said header, said junction box and said heat conducting strips.

10. A photo-thermal solar system comprising a photo-thermal solar thin film cell according to any one of the preceding claims.