CN218039233U - Photovoltaic module with illumination function - Google Patents

Abstract

The utility model discloses a photovoltaic module with illumination function, include: the device comprises a light-emitting unit, a power generation unit and an energy storage unit; the power generation unit generates power and stores the power through the energy storage unit; the energy storage unit is used for providing electric energy required by illumination for the light-emitting unit; the light-emitting unit is arranged above the power generation unit; the light emitting unit includes: the LED lamp comprises front glass and a plurality of LED lamps; the front glass is provided with a plurality of lamp slots; conductive circuits are printed in the lamp grooves; the LED lamps are correspondingly arranged in the lamp grooves and are electrically connected with the conducting circuits; the power generation unit comprises the following components in sequence: the solar cell module comprises front glass, a front packaging adhesive film, a cell layer, a back packaging adhesive film and back glass. The utility model discloses a photovoltaic module with illumination function, its structural design is simple to this photovoltaic module with illumination function can make full use of the light power generation of LED transmission at night, when improving the illumination at its night, solved the problem that current lighting module lighting time is short, the practicality is high and whole manufacturing cost is lower.

Description

Photovoltaic module with illumination function

Technical Field

The utility model relates to a photovoltaic power generation technical field, concretely relates to photovoltaic module with illumination function.

Background

As the use scenes of the solar cell module are diversified, for example, curtain walls, expressways, urban roads, road signs, guideboards, etc., these adaptation scenes require a lighting function at night. However, the existing photovoltaic cell module cannot independently complete the illumination operation, and needs an external light source plate to achieve the illumination effect. The combination of the lighting module and the power generation module has the defects of complex combination, obviously increased manufacturing cost and transportation cost and the like, and the power generation module can only be charged by utilizing solar rays in the daytime and cannot be self-charged at night, so that the lighting time of the lighting module is short. Meanwhile, roads, airports, building curtain walls and other special areas with high requirements on light pollution environment are used, and certain requirements on glare and attractiveness of components are also met in order to ensure safety of personnel and surrounding environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a photovoltaic module with illumination function to there are defects such as the illumination time that combines complicacy, cost of manufacture height and lighting module to current lighting module and power module short.

The utility model discloses a realize through following technical scheme:

a photovoltaic module with a lighting function, the photovoltaic module comprising: the device comprises a light-emitting unit, a power generation unit and an energy storage unit; the power generation unit generates power and stores the power through the energy storage unit; the energy storage unit is used for providing electric energy required by illumination for the light-emitting unit; the light-emitting unit is arranged above the power generation unit;

the light emitting unit includes: the LED lamp comprises front glass and a plurality of LED lamps; the front glass is provided with a plurality of lamp grooves; the lamp groove is printed with a conductive circuit; the LED lamps are correspondingly arranged in the lamp grooves and are electrically connected with the conducting circuits;

the power generation unit comprises the following components in sequence: the solar cell comprises front glass, a front packaging adhesive film, a cell layer, a back packaging adhesive film and back glass.

Specifically, the power generation unit in the utility model can be understood as photovoltaic power generation component.

The battery layer is formed by connecting a plurality of double-sided battery pieces. The utility model discloses in the LED lamp arrange in the top of battery piece clearance and interconnection strip, guarantee that each battery piece electricity generation is regional all to set up the region beyond the vertical projection that upper LED lamp set up. Specifically, the areas except the conducting circuit loop in the light-emitting unit are high-light-transmittance areas, so that sunlight entering the power generation unit is not influenced. The conductive circuit can also be printed into a conductive circuit with certain light transmittance.

Specifically, photovoltaic module with illumination function in luminescence unit and the electrical unit, the output and the end of charging that insert energy storage unit through termination respectively, photovoltaic module's electrical unit utilizes the sunlight to charge daytime and save the energy storage unit, utilizes energy storage unit output electric energy to provide luminescence unit and light the LED lamp layer and throw light on evening. Meanwhile, after the LED lamp is lighted, the light is corrected into an even area light source through a high-scattering structure arranged on the front glass and is distributed on a battery layer of the power generation unit, so that the battery layer generates electric energy by secondary work of the light emitted by the LED lamp to be charged and stored, and a photovoltaic module for circulating power supply is formed. Wherein: the spectrum of the light source provided by the LED lamp is close to the spectrum of sunlight, the brighter the brightness, the more the electric quantity generated at night, and the lighting assembly can be connected into the energy storage unit after the light-emitting unit and the power generation unit are connected in series or in parallel according to the requirements of application scenes.

Further, a photovoltaic module with illumination function: and pressing the lamp groove on the front glass in a rolling forming mode. Specifically, the manufacturing process comprises the following steps: glass raw materials are uniformly mixed, after a glass kiln is melted, melted glass liquid is sent into a forming calender for forming through a kiln opening, the forming calender is a double-roller calender with a plurality of light groove grains and light trapping grains which are the same in shape and size and are uniformly distributed on one roller surface, then the glass is pressed into front glass (glass substrate) with a light trapping structure on one surface and a light trapping structure on the other surface, and positive and negative lead wire outlet holes of LED light conducting circuits are formed in the glass substrate in a mechanical or laser punching mode.

Further, a photovoltaic module with illumination function: the light-emitting unit set up in the top of electricity generation unit, just the light-emitting unit with be provided with the cavity space bar between the electricity generation unit, just be in it encapsulates to scribble sealed glue on the cavity space bar.

Further, a photovoltaic module with illumination function: the light-emitting unit is arranged above the power generation unit, the light-emitting unit and the power generation unit are sealed and bonded through a packaging adhesive film, and the thickness of the packaging adhesive film is 0.5-10mm.

Specifically, the light-emitting unit and the power generation unit are encapsulated through a hollow spacing strip and a sealant coated on the hollow spacing strip, and the periphery of the lighting photovoltaic module is filled with the sealant to seal and bond the edge of the lighting photovoltaic module; the light-emitting unit and the power generation unit can be sealed and bonded through a packaging adhesive film.

Further, a photovoltaic module with illumination function: the battery layer is formed by connecting a plurality of battery pieces in series or in parallel; the LED lamp is arranged above the battery piece, and the effective power generation area of the battery piece is positioned outside the projection area of the LED lamp. The design can not only play a role in shielding the welding strip, but also reduce the harm caused by glare; and the light received by the battery plates in the power generation unit is not influenced to generate power.

Further, a photovoltaic module with illumination function: and a diffusion layer is arranged on one surface of the front glass, which is close to the front packaging adhesive film.

Specifically, the diffusion layer be used for with the light that the LED lamp sent passes through front glass becomes the light of big angle diffusion, does benefit to the battery layer absorbs light that the LED lamp sent carries out secondary power generation, promotes the generated energy of electricity generation unit.

Further, a photovoltaic module with illumination function: the diffusion layer is a high-light-transmittance and high-scattering coating, or the diffusion layer is a high-scattering pattern structure.

Further, a photovoltaic module with illumination function: the pattern structure is an inverted pyramid structure.

Further, a photovoltaic module with illumination function: the front glass is also provided with a light conversion layer, and the light conversion layer is arranged on one surface of the front glass, which is opposite to the diffusion layer. Specifically, the light conversion layer is arranged to convert short-wave photons into long-wave photons or/and convert long-wave photons into short-wave photons, and the converted photons are more beneficial to absorption of the solar cell, so that light rays emitted by the LED lamp can be fully absorbed and utilized by the cell. Specifically, the conversion efficiency of the cell is improved through wavelength transfer, short-wave photons with poor spectral response of the cell are converted into long-wave photons with good spectral response of the cell, if short waves with the wavelength less than 500nm are absorbed, the short-wave photons are converted into long-wave photons with the wavelength of 500-700nm, the short-wave energy loss of the crystalline silicon cell is reduced, and the photoelectric conversion efficiency of the solar cell is improved.

Further, a photovoltaic module with illumination function: and a light trapping structure is arranged on one surface of the front glass opposite to the lamp groove and used for reducing light reflection.

Specifically, the utility model provides a photovoltaic module with illumination function: form glass substrate (front glass) that has groove structure through the calendering shaping mode, combine with photovoltaic power generation part (generating unit) through arranging luminous LED lamp in the recess (light trough) at glass substrate, form the photovoltaic module who has electricity generation and illumination of integral type, it is the photovoltaic module that can utilize the sunlight to charge daytime, the light that utilizes self LED light source to send at night carries out the secondary and charges, can effectively improve it long when the illumination of night, the short problem of current lighting module illumination time has been solved. The utility model discloses a practicality is high, saves whole manufacturing cost. Meanwhile, the LED lamps in the light-emitting unit are arranged above the battery layer and are arranged above the interconnection strip area and the battery piece gap area of the battery layer in the power generation unit, so that the effect of shielding welding strips can be achieved, and the harm caused by glare is reduced. By combining the hollow structure or the laminated structure with the glass diffusion structure, when visible light reaches the array of the metal grid lines of the cell through the glass diffusion structure, the glass diffusion structure can interfere with the vision to eliminate moire patterns when observed by human eyes, and the visual effect of the whole photovoltaic module is achieved. The junction through luminescence unit and power generation unit is equipped with cavity (cavity space bar) or laminating packaging adhesive film, makes the utility model discloses photovoltaic module with illumination function can play syllable-dividing, thermal-insulated and the effect that improves the generating efficiency.

The utility model has the advantages that:

(1) The utility model discloses a photovoltaic module with illumination function, its structural design is simple to this photovoltaic module with illumination function can the light power generation of make full use of LED transmission at night, when improving the illumination at its night, solved the short problem of current lighting module lighting time, the practicality is high and whole manufacturing cost is lower.

(2) The utility model discloses a photovoltaic module with illumination function is equipped with cavity (cavity space bar) or the encapsulation glued membrane that the laminating has certain thickness through luminescence unit and the combination department of electricity generation unit, makes the utility model discloses photovoltaic module with illumination function can play syllable-dividing, thermal-insulated and the effect that improves the generating efficiency.

(3) The utility model discloses a photovoltaic module with illumination function can reduce the harm that the glare brought, eliminates mole line, promotes whole photovoltaic module's visual effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a top view of a photovoltaic module with an illumination function provided by the present invention;

fig. 2 is a schematic structural diagram of a photovoltaic module with an illumination function provided by the present invention;

fig. 3 is a schematic structural diagram of a light emitting unit in a photovoltaic module with an illumination function according to the present invention.

The labels in the figure are: the LED lamp comprises a light emitting unit 1, a power generating unit 2, a hollow spacer bar 3, a sealant 4, front glass 1-1, an LED lamp 1-2, a conductive circuit 1-3, front glass 2-1, a front packaging adhesive film 2-2, a battery layer 2-3, a back packaging adhesive film 2-4 and back glass 2-5.

Detailed Description

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships for convenience of description and simplicity of description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

Example 1

As shown in fig. 1 to 3, a photovoltaic module having a lighting function includes: a light emitting unit 1, a power generating unit 2 and an energy storage unit (not shown in the figure); the electricity generated by the power generation unit 2 is stored through the energy storage unit; the energy storage unit is used for providing electric energy required by illumination for the light emitting unit 1; the light-emitting unit 1 is arranged above the power generation unit 2, a hollow spacing bar 3 is arranged between the light-emitting unit 1 and the power generation unit 2, and the hollow spacing bar 3 is coated with a sealant 4 for encapsulation;

the light emitting unit 1 includes: the LED lamp comprises front glass 1-1 and a plurality of LED lamps 1-2; the front glass 1-1 is pressed with a lamp groove in a calendaring forming mode; conductive circuits 1-3 are printed in the lamp grooves; the LED lamps 1-2 are correspondingly arranged in the lamp grooves and are electrically connected with the conducting circuits 1-3 in a conducting adhesive or welding mode;

the power generation unit 2 comprises the following components in sequence: 2-1 parts of front glass, 2-2 parts of front packaging adhesive film, 2-3 parts of battery layer, 2-4 parts of back packaging adhesive film and 2-5 parts of back glass; wherein: the battery layer 2-3 is formed by connecting a plurality of double-sided battery pieces in series or in parallel and connecting and gathering the double-sided battery pieces through interconnection bars, the LED lamp 1-2 is arranged above the battery pieces and correspondingly arranged right above the battery piece gaps and the interconnection bars, so that the effective power generation area of the battery pieces is positioned outside the projection area of the LED lamp 1-2; preferably, a diffusion layer is arranged on one surface, close to the front surface packaging adhesive film 2-2, of the front surface glass 2-1, and a light conversion layer is arranged on the surface opposite to the diffusion layer; the diffusion layer can be a coating with high light transmittance and high scattering, and can also be a pattern structure of an inverted pyramid, the diffusion layer has the effect that light rays emitted by the LED lamp 1-2 pass through the front glass 2-1 and then are changed into light rays diffused at a large angle, the secondary power generation is favorably carried out by the battery piece absorbing the light rays of the LED lamp, the power generation amount of the power generation unit is improved, and the lighting time at night is prolonged. Remarking: the utility model discloses the spectrum of the light source that well LED lamp 1-2 provided is close to in the spectrum of sunlight for light that the LED lamp sent can be absorbed by the battery piece equally and trun into the electric energy to store to the energy storage unit when the illumination of night. The utility model discloses still make the light that LED lamp 1-2 sent more be favorable to solar cell to absorb after the conversion through setting up the light conversion layer, make battery layer 2-3 accept light once more through the light that LED lamp 1-2 sent and carry out secondary power generation, promote the utilization ratio.

Example 2

As shown in fig. 1 to 3, a photovoltaic module having a lighting function includes: a light emitting unit 1, a power generating unit 2 and an energy storage unit (not shown in the figure); the electricity generated by the power generation unit 2 is stored through the energy storage unit; the energy storage unit is used for providing electric energy required by illumination for the light emitting unit 1; the light-emitting unit 1 is arranged above the power generation unit 2, a hollow spacing bar 3 is arranged between the light-emitting unit 1 and the power generation unit 2, the light-emitting unit 1 and the power generation unit 2 are hermetically bonded through a packaging adhesive film, and the thickness of the packaging adhesive film is 5.0mm;

the light emitting unit 1 includes: the LED lamp comprises front glass 1-1 and a plurality of LED lamps 1-2; the front glass 1-1 is pressed with a lamp groove in a calendaring forming mode; conductive circuits 1-3 are printed in the lamp grooves; the LED lamps 1-2 are correspondingly arranged in the lamp grooves and are electrically connected with the conducting circuits 1-3 in a conducting adhesive or welding mode;

the power generation unit 2 comprises the following components in sequence: 2-1 parts of front glass, 2-2 parts of front packaging adhesive film, 2-3 parts of battery layer, 2-4 parts of back packaging adhesive film and 2-5 parts of back glass; wherein: the battery layer 2-3 is formed by connecting a plurality of double-sided battery pieces in series or in parallel and connecting and gathering the double-sided battery pieces through interconnection bars, the LED lamp 1-2 is arranged above the battery pieces and correspondingly arranged right above the battery piece gaps and the interconnection bars, so that the effective power generation area of the battery pieces is positioned outside the projection area of the LED lamp 1-2; preferably, a diffusion layer is arranged on one surface, close to the front surface packaging adhesive film 2-2, of the front surface glass 2-1, and a light conversion layer is arranged on the surface opposite to the diffusion layer; the diffusion layer can be a coating with high light transmittance and high scattering, and can also be a pattern structure of an inverted pyramid, the diffusion layer has the effect that light rays emitted by the LED lamp 1-2 pass through the front glass 2-1 and then are changed into light rays diffused at a large angle, the secondary power generation is favorably carried out by the battery piece absorbing the light rays of the LED lamp, the power generation amount of the power generation unit is improved, and the lighting time at night is prolonged.

The difference between the above embodiment 2 and embodiment 1 is that the sealing manner between the light emitting unit 1 and the power generating unit 2 is different, and in embodiment 2, the interfacial reflection from the glass to the air is reduced by integrally laminating, sealing and bonding, so that the amount of light incident on the cell sheet is increased (by about 8% or more), thereby increasing the power generating efficiency.

The preparation process of the photovoltaic module with the illumination function provided in the above embodiment 1:

(1) Uniformly mixing glass raw materials, after a glass kiln is melted, feeding melted glass liquid into a forming calender through a kiln opening for forming, forming glass with lamp grooves on front glass 1-1 in a calendering forming mode, forming conducting circuits 1-3 in the lamp grooves in a printing and coating mode, then curing, and electrically connecting LED lamps 1-2 on the LED conducting circuits 1-3 of the front glass 1-1 in a conducting adhesive or welding mode;

(2) Laying a front surface packaging material 2-2 on the front surface glass 2-1, arranging the welded battery pieces on the front surface packaging material 2-2 in a series or parallel mode, welding the battery pieces to form a circuit loop, and leading out the reserved bus bar to form a battery layer 2-3; laying a layer of back surface packaging material 2-4 on the battery layer 2-3; covering the back glass 2-5 on the back packaging material 2-4, laminating, and obtaining the power generation unit 2;

(3) Encapsulating the light-emitting unit 1 and the power generation unit 2 through a hollow spacing strip 3 and a sealant 4 coated on the hollow spacing strip 3, and filling the sealant 4 at the periphery to seal and bond the edges; then, wiring, glue pouring and sealing are carried out on outgoing lines of the light emitting unit 1 and the power generating unit 2 to obtain the photovoltaic module with the lighting function; and finally, electrically connecting the light-emitting unit 1 and the power generation unit 2 with the energy storage unit.

And (3) testing:

when the photovoltaic module with the illumination function of the utility model is installed at an inclination angle of 90 degrees, the same surface of the battery layer of the power generation unit 2 is connected in series or in parallel according to the alternating mode of the positive and negative electrodes of the double-sided battery pieces to ensure the optimal power generation efficiency of the photovoltaic module, the number of the double-sided battery pieces in the battery layers 2-3 is 12, the efficiency of the battery pieces is about 22 percent, and the size of each battery piece is 158.75mm and 158.75mm; and (3) performing simulation calculation on the generated energy:

daily power generation = system capacity × peak hour number × total efficiency is

Instantaneous power generation

＝12×0.15875m×0.15875m×22％×1000W/m ² ×3.5h×(1-0.1)

=0.2096kw.h (degrees). In the formula: 1000W/m ² Is the solar irradiance, 3.5h is about the effective time of the photovoltaic module receiving the solar irradiance, and 0.1 is the circuit loss.

According to the actual situation: the luminous flux of 40W ordinary straight-tube sunlight lamp is 2400lm (lumens), the current LED is applied to lighting products, the general luminous efficiency can reach 90lm/W, the power of one LED is less than 1W, if the LED lamp is used for night auxiliary lighting, the 40W LED lamp can reach 3600lm, and the lighting requirement can be completely met.

Assuming that one LED lamp power 1w and 40 LED lamp powers 40W consume about 0.04kw.h (degree) per hour, it can be calculated that the one-day power generation amount of the power generation unit 2 can satisfy the 5.24-hour illumination of the light emission unit.

The energy storage unit is used for outputting electricity to light the LED lamp 1-2 for illumination at night, the spectrum of the light source provided by the LED lamp 1-2 is close to the spectrum of sunlight and evenly irradiates the battery layer 2-3 of the power generation unit 2, the power generation unit 2 continues to work to generate electric energy for cyclic charging storage, and the illumination time is prolonged.

The above is that the preferred embodiment of the present invention is only used for explaining the present invention, and is not used for limiting the present invention. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.

Claims (10)

1. A photovoltaic module with a lighting function, the photovoltaic module comprising: the device comprises a light-emitting unit (1), a power generation unit (2) and an energy storage unit; the power generation unit (2) generates power and stores the power through the energy storage unit; the energy storage unit is used for providing electric energy required by illumination for the light-emitting unit (1); the light-emitting unit (1) is arranged above the power generation unit (2);

the light emitting unit (1) comprises: the LED lamp comprises front glass (1-1) and a plurality of LED lamps (1-2); a plurality of lamp grooves are arranged on the front glass (1-1); conductive circuits (1-3) are printed in the lamp grooves; the LED lamps (1-2) are correspondingly arranged in the lamp grooves and are electrically connected with the conducting circuits (1-3);

the power generation unit (2) comprises the following components in sequence: the solar cell comprises front glass (2-1), a front packaging adhesive film (2-2), a cell layer (2-3), a back packaging adhesive film (2-4) and back glass (2-5).

2. A photovoltaic module with lighting function according to claim 1, characterized in that the lamp groove is pressed on the front glass (1-1) by means of calendering.

3. The photovoltaic module with the illumination function as claimed in claim 1, wherein the light emitting unit (1) is disposed above the power generating unit (2), a hollow spacer bar (3) is disposed between the light emitting unit (1) and the power generating unit (2), and a sealant (4) is coated on the hollow spacer bar (3) for encapsulation.

4. The photovoltaic module with the illumination function according to claim 1, wherein the light emitting unit (1) is disposed above the power generating unit (2), and the light emitting unit (1) and the power generating unit (2) are hermetically bonded by an encapsulant film, and the thickness of the encapsulant film is 0.5-10mm.

5. A photovoltaic module with lighting function according to claim 1, characterized in that said cell layer (2-3) is formed by connecting several cells in series or in parallel; the LED lamp (1-2) is arranged above the battery piece, and the effective power generation area of the battery piece is positioned outside the projection area of the LED lamp (1-2).

6. The photovoltaic module with the illumination function as claimed in claim 1, wherein a diffusion layer is disposed on a surface of the front glass (2-1) close to the front encapsulant film (2-2).

7. A photovoltaic module with illumination function according to claim 6, characterized in that the diffusion layer is provided as a high light transmittance, high scattering coating or as a high scattering pattern structure.

8. The photovoltaic module with the illumination function as claimed in claim 7, wherein the pattern structure is an inverted pyramid structure.

9. The photovoltaic module with the illumination function according to claim 6, wherein a light conversion layer is further disposed on the front glass (2-1), and the light conversion layer is disposed on a surface of the front glass (2-1) opposite to the diffusion layer.

10. Photovoltaic module with lighting function according to claim 1, characterized in that a light trapping structure is provided on the front glass (1-1) on the side opposite to the light trough for reducing light reflection.

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