Multi-grating structure suitable for photovoltaic cell

Abstract

The utility model discloses a multi-grating structure suitable for a photovoltaic cell, which comprises a cell main body and a transverse grating strip embedded in the cell main body, a vertical grating strip is embedded in the cell main body, an ethylene plate a is arranged on the lower side of the cell main body, a back plate is arranged on the lower side of the ethylene plate a, and the back plate is arranged on the lower side of the ethylene plate a. The outer wall of the upper end of the ethylene plate a is fixedly connected with a heat conduction plate a to guide temperature circulation, and a plurality of heat dissipation holes with upper and lower openings are formed in the outer walls of the upper ends of the ethylene plate a and the heat conduction plate a at equal intervals to guide the temperature of the battery piece body to be diffused outwards. The temperature distribution of the whole battery piece main body is more uniform, the thermal stress of the battery piece main body is maintained, the service life is prolonged, the electric energy conversion efficiency can be improved, the stability of the battery piece main body during working can be maintained, and the disorder condition during electric energy conversion is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to photovoltaic cells, and specifically relates to a multi-grating structure suitable for photovoltaic cells. Background Art

[0002] Multiple grating structures are used on the surface of photovoltaic cells to increase light absorption and current output efficiency. The grating structure is usually composed of micron-sized metal lines or semiconductor materials, which can effectively improve the light absorption capacity and photoelectric conversion efficiency of photovoltaic cells. However, the multi-grating structure of photovoltaic cells causes uneven surface temperature gradients due to environmental influences when absorbing solar radiation. The temperature in some areas is too high and the temperature in some areas is too low, causing the stability of the cell to be disrupted when converting electrical energy. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-grating structure suitable for photovoltaic cells to solve the problem of uneven surface temperature gradient caused by environmental influences when the multi-grating structure of photovoltaic cells proposed in the above background technology absorbs solar radiation.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-grating structure suitable for photovoltaic cells, comprising a cell body and transverse grating strips embedded in the cell body;

[0005] Vertical grating strips are embedded inside the battery cell body;

[0006] A vinyl plate a is provided on the lower side of the battery cell body;

[0007] A back plate is provided on the lower side of the vinyl plate a;

[0008] The upper outer wall of the vinyl plate a is fixedly connected with a heat conducting plate a to guide the flow of temperature. The upper outer walls of the vinyl plate a and the heat conducting plate a are evenly spaced inside with multiple heat dissipation holes opening up and down to guide the temperature of the battery cell body to diffuse outward.

[0009] Preferably, the lower outer wall of the vinyl plate a is fixedly connected to a heat-conducting plate b, and the lower outer wall of the heat-conducting plate a is fixedly connected to a heat-conducting strip.

[0010] Preferably, positioning blocks are fixedly connected at four corners of the upper outer wall of the back plate, and a positioning groove is provided on the lower outer wall of the heat conducting plate b for the positioning blocks to be clamped and fixed.

[0011] Preferably, the heat conducting plate a, the heat conducting strip and the heat conducting plate b are all made of brass material, and the heat conducting plate a, the heat conducting plate b and the vinyl plate a are fixedly connected by bonding.

[0012] Preferably, a vinyl plate b is provided on the upper side of the battery cell body, and tempered glass is provided on the upper side of the vinyl plate b.

[0013] Preferably, a fixing frame is provided on the lower side of the back plate, and a junction box is provided inside the fixing frame.

[0014] Preferably, a plurality of line openings are equidistantly provided inside the outer wall of the right end of the fixed frame, and a fixing groove is provided inside the fixed frame.

[0015] Compared with the prior art, the utility model provides a multi-grating structure suitable for photovoltaic cells, which has the following beneficial effects:

[0016] By installing the heat conducting plate a and the heat dissipation holes, when the horizontal grating bars and the vertical grating bars on the battery cell body receive the sun's radiation, if an uneven temperature gradient occurs, the temperature of the area with too high a temperature can be conducted to the area with lower temperature through the heat conducting plate a, so that the temperature distribution of the entire battery cell body is more uniform, the thermal stress of the battery cell body is maintained, the service life is extended, and the efficiency of electric energy conversion is improved. The overall temperature of the battery cell body is kept uniform, and the stability of the battery cell body during operation can be maintained, and disorder during electric energy conversion can be avoided. Since the entire battery cell is at high temperature, excess heat can be dissipated through the heat dissipation holes to cool the battery cell body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a multi-grating structure suitable for a photovoltaic cell in the utility model in a split state.

[0018] Figure 2 The utility model is a schematic diagram of a multi-grating structure suitable for a photovoltaic cell.

[0019] Figure 3 It is a schematic diagram of the partial structure of the right side cross section of the vinyl plate a area of ​​the utility model.

[0020] In the figure: 1. fixed frame; 2. junction box; 3. line opening; 4. back plate; 5. positioning block; 6. vinyl plate a; 7. heat conducting plate a; 8. battery cell body; 9. vinyl plate b; 10. tempered glass; 11. horizontal grating bars; 12. vertical grating bars; 13. heat dissipation holes; 14. heat conducting bars; 15. positioning grooves; 16. heat conducting plate b. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-3 A multi-grating structure suitable for a photovoltaic cell is shown, comprising a cell body 8 and transverse grating strips 11 embedded in the cell body 8;

[0023] Vertical grating strips 12 are embedded inside the cell body 8;

[0024] A vinyl plate a6 is provided on the lower side of the battery cell body 8;

[0025] A back plate 4 is provided on the lower side of the vinyl plate a6. When receiving light, the transverse grating strips 11 and the vertical grating strips 12 embedded in the battery sheet body 8 convert the absorbed light into electrical energy and output it externally;

[0026] The upper outer wall of the vinyl plate a6 is fixedly connected to a heat conducting plate a7 to guide the flow of temperature. A plurality of heat dissipation holes 13 with upper and lower openings are equidistantly provided inside the upper outer walls of the vinyl plate a6 and the heat conducting plate a7 to guide the temperature of the battery cell body 8 to diffuse outward. When the battery cell body 8 receives sunlight, uneven temperature may occur on the surface of the battery cell body 8. The heat can be guided by the heat conducting plate a7, and the temperature of the higher temperature area can be transferred to the lower temperature area through the heat conducting plate a7, so as to maintain the uniformity of the overall temperature of the battery cell body 8. In the case of excessively high temperature, the temperature can be dissipated through the heat dissipation holes 13.

[0027] like Figure 3 As shown, the lower outer wall of the vinyl plate a6 is fixedly connected to the heat conducting plate b16, the lower outer wall of the heat conducting plate a7 is fixedly connected to the heat conducting strip 14, the upper outer wall of the back plate 4 is fixedly connected to the positioning blocks 5 at the four corners, and the lower outer wall of the heat conducting plate b16 is provided with a positioning groove 15 for the positioning block 5 to be clamped and fixed.

[0028] When the temperature is diffused outwards to perform a cooling operation, the temperature can be guided to the heat-conducting strip 14 through the heat-conducting plate b16 to diffuse the temperature to the space increased by the positioning block 5 to perform a cooling operation.

[0029] like Figure 3 As shown, the heat conducting plate a7, the heat conducting strip 14 and the heat conducting plate b16 are all made of brass material, and the heat conducting plate a7, the heat conducting plate b16 and the vinyl plate a6 are fixedly connected by bonding.

[0030] It is made of brass material with high temperature conduction, which can quickly guide the temperature and thus quickly complete the temperature transfer operation.

[0031] like Figure 1 As shown, a vinyl plate b9 is provided on the upper side of the battery cell body 8, a tempered glass 10 is provided on the upper side of the vinyl plate b9, a fixed frame 1 is provided on the lower side of the back plate 4, a junction box 2 is provided inside the fixed frame 1, a plurality of line openings 3 are equidistantly provided inside the outer wall at the right end of the fixed frame 1, and a fixing groove is provided inside the fixed frame 1.

[0032] The back plate 4, vinyl plate a6, battery cell body 8, vinyl plate b9 and tempered glass 10 are installed inside the fixed frame 1 and the lines are centrally fixed on the junction box 2. The lines on the junction box 2 pass through the line opening 3 to transmit the electric energy converted from the photovoltaic panel to the outside.

[0033] The implementation principle of this embodiment is: move the whole to a suitable installation position, and face the upper side of the battery cell body 8 to the light-facing side. After the light is irradiated onto the battery cell body 8, the sunlight is converted into electrical energy through the horizontal grating bars 11 and the vertical grating bars 12 and then diffused outward. When the temperature distribution on the battery cell body 8 is uneven, the temperature at a higher position can be guided to a lower temperature position through the heat conduction plate a7 to maintain the uniformity of the overall temperature of the battery cell body 8 and maintain stability during operation.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-grating structure suitable for a photovoltaic cell, comprising a cell body (8) and transverse grating strips (11) embedded in the cell body (8); Vertical grating strips (12) are embedded inside the battery cell body (8); A vinyl plate a (6) is provided on the lower side of the battery cell body (8); A back plate (4) is provided on the lower side of the vinyl plate a (6); Features: The upper outer wall of the vinyl plate a (6) is fixedly connected to a heat conducting plate a (7) to guide the flow of temperature. The upper outer walls of the vinyl plate a (6) and the heat conducting plate a (7) are evenly spaced inside with a plurality of heat dissipation holes (13) opening up and down to guide the temperature of the battery cell body (8) to diffuse outward.

2. A multi-grating structure suitable for a photovoltaic cell according to claim 1, characterized in that: The lower outer wall of the vinyl plate a (6) is fixedly connected to a heat-conducting plate b (16), and the lower outer wall of the heat-conducting plate a (7) is fixedly connected to a heat-conducting strip (14).

3. The multi-grating structure suitable for photovoltaic cells according to claim 2, characterized in that: Positioning blocks (5) are fixedly connected at the four corners of the upper outer wall of the back plate (4), and a positioning groove (15) is provided on the lower outer wall of the heat conducting plate b (16) for the positioning blocks (5) to be clamped and fixed.

4. The multi-grating structure suitable for photovoltaic cells according to claim 3, characterized in that: The heat conducting plate a (7), the heat conducting strip (14) and the heat conducting plate b (16) are all made of brass material, and the heat conducting plate a (7), the heat conducting plate b (16) and the vinyl plate a (6) are fixedly connected by bonding.

5. The multi-grating structure suitable for photovoltaic cells according to claim 1, characterized in that: A vinyl plate b (9) is arranged on the upper side of the battery cell body (8), and a tempered glass (10) is arranged on the upper side of the vinyl plate b (9).

6. The multi-grating structure suitable for photovoltaic cells according to claim 1, characterized in that: A fixing frame (1) is arranged on the lower side of the back plate (4), and a junction box (2) is arranged inside the fixing frame (1).

7. The multi-grating structure suitable for photovoltaic cells according to claim 6, characterized in that: A plurality of line openings (3) are equidistantly provided inside the outer wall of the right end of the fixed frame (1), and a fixing groove is provided inside the fixed frame (1).

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