Light-energy charging panel and electronic shelf label

Abstract

Provided in the present application are a light-energy charging panel and an electronic shelf label. The light-energy charging panel comprises a charging panel body, wherein an arc-shaped concave face is provided in a vertical direction on a light-facing side of the charging panel body, and a photoelectric conversion material layer is provided on a surface of the arc-shaped concave face; and the height of the point of tangency of the arc-shaped concave face with the vertical direction is greater than or equal to the height of the midpoint of the charging panel body, such that the arc-shaped concave face faces a horizontal direction or an obliquely upward direction.

Description

A light energy charging plate and electronic price tag

[0001] Related applications

[0002] This application claims priority to the Chinese utility model patent application with application number 202323348065.9 filed on December 8, 2023, and cites the entire disclosure of the above patent application as part of this application. Technical Field

[0003] The present application relates to the technical field of light energy charging, and in particular to a light energy charging plate and an electronic price tag. Background Art

[0004] Solar charging is a charging technology that converts light energy into electricity. Common solar charging panels are an example of this technology. However, existing solar charging panels are typically placed flat or tilted on a sunny surface. This is because vertical panels have less surface area exposed to sunlight, resulting in insufficient sunlight and low charging efficiency. Summary of the Invention

[0005] The purpose of this application is to overcome the shortcomings and deficiencies in the prior art and to provide a light-energy charging plate and an electronic price tag that can improve the charging efficiency of a vertically arranged light-energy charging plate.

[0006] A first embodiment of the present application provides a light-powered charging plate, comprising: a charging plate body, wherein one side of the charging plate body is a light-facing side, the light-facing side of the charging plate body is provided with a curved concave surface, the curved concave surface is arc-shaped from top to bottom, and a photoelectric conversion material layer is provided on the surface of the curved concave surface;

[0007] The height of the tangent point of the arc-shaped concave surface and the vertical direction is greater than or equal to the height of the midpoint of the charging plate body, so that the arc-shaped concave surface faces the horizontal direction or the inclined upward direction.

[0008] Furthermore, the tangent point of the arc-shaped concave surface and the vertical direction is located at the top of the charging plate body.

[0009] Furthermore, the tangent point of the arc-shaped concave surface and the vertical direction is located between the midpoint of the charging plate body and the top of the charging plate body, and the thickness of the top of the charging plate body is less than the thickness of the bottom of the charging plate body.

[0010] Furthermore, the tangent point of the arc-shaped concave surface and the vertical direction is located at a horizontal position of the midpoint of the charging plate body, and the top thickness of the charging plate body is equal to the bottom thickness of the charging plate body.

[0011] Furthermore, the maximum value of the arc radius corresponding to the arc-shaped concave surface is: Rmax=(h 2 +T2 ) / 2T;

[0012] Among them, Rmax represents the maximum value of the arc radius corresponding to the arc-shaped concave surface, h represents the height of the tangent point of the arc-shaped concave surface and the vertical direction relative to the bottom of the charging plate body, and T represents the maximum thickness of the charging plate body.

[0013] A second embodiment of the present application provides an electronic price tag, comprising: a light-energy charging plate and a price tag body, wherein the light-energy charging plate is electrically connected to the price tag body; the light-energy charging plate includes a charging plate body, wherein the light-facing side of the charging plate body is provided with an arc-shaped concave surface in the vertical direction, and the surface of the arc-shaped concave surface is provided with a photoelectric conversion material layer.

[0014] The price tag body at least includes a shell and a display module. The shell is used to fix the display module, and the display module is used to display the content of the price tag.

[0015] The height of the tangent point of the arc-shaped concave surface and the vertical direction is greater than or equal to the height of the midpoint of the charging plate body, so that the arc-shaped concave surface faces the horizontal direction or the inclined upward direction.

[0016] Furthermore, the tangent point of the arc-shaped concave surface and the vertical direction is located at the top of the charging plate body.

[0017] Furthermore, the tangent point of the arc-shaped concave surface and the vertical direction is located between the midpoint of the charging plate body and the top of the charging plate body, and the thickness of the top of the charging plate body is less than the thickness of the bottom of the charging plate body.

[0018] Furthermore, the tangent point of the arc-shaped concave surface and the vertical direction is located at a horizontal position of the midpoint of the charging plate body, and the top thickness of the charging plate body is equal to the bottom thickness of the charging plate body.

[0019] Furthermore, the maximum value of the arc radius corresponding to the arc-shaped concave surface is: Rmax=(h 2 +T 2 ) / 2T;

[0020] Among them, Rmax represents the maximum value of the arc radius corresponding to the arc-shaped concave surface, h represents the height of the tangent point of the arc-shaped concave surface and the vertical direction relative to the bottom of the charging plate body, and T represents the maximum thickness of the charging plate body.

[0021] Compared to the prior art, the light-energy charging plate of the present application includes a charging plate body, wherein the light-facing side of the charging plate body is provided with an arc-shaped concave surface in a vertical direction. The surface of the arc-shaped concave surface is provided with a photoelectric conversion material layer, which can convert received light energy into electrical energy. Moreover, because the design of the arc-shaped concave surface increases the area of ​​the photoelectric conversion material layer, the area exposed to light is increased, the amount of light energy received is increased, thereby improving the photoelectric conversion capacity and charging efficiency. Furthermore, because the height of the point of intersection of the arc-shaped concave surface with the vertical direction is greater than or equal to the height of the midpoint of the charging plate body, the arc-shaped concave surface can be made to face horizontally or obliquely upward, which is more conducive to the photoelectric conversion material layer receiving light that is obliquely illuminated from top to bottom by the arc-shaped concave surface of the charging plate body, further improving the photoelectric conversion amount and charging efficiency.

[0022] In order to provide a clearer understanding of the present application, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic structural diagram of a first form of a light energy charging plate according to an embodiment of the present application.

[0024] FIG2 is a schematic diagram of a first structure of a second form of a light energy charging plate according to an embodiment of the present application.

[0025] FIG3 is a second structural diagram of a second form of a light energy charging plate according to an embodiment of the present application.

[0026] FIG4 is a schematic diagram of the structure of an electronic price tag according to an embodiment of the present application.

[0027] FIG5 is a data diagram corresponding to FIG1 according to an embodiment of the present application.

[0028] FIG6 is a data diagram corresponding to FIG3 according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] Please refer to Figures 1-3. Figure 1 is a schematic diagram of the structure of a first embodiment of a light-powered charging plate according to an embodiment of the present application. Figure 2 is a schematic diagram of the first structure of a second embodiment of a light-powered charging plate according to an embodiment of the present application. Figure 3 is a schematic diagram of the second structure of the second embodiment of a light-powered charging plate according to an embodiment of the present application. Specifically, the light-powered charging plate includes a charging plate body 100, one side of which is a light-facing side. The light-facing side of the charging plate body 100 is provided with a curved concave surface 101. The curved concave surface 101 is curved from top to bottom, and a photoelectric conversion material layer is provided on the surface of the curved concave surface 101. In this embodiment, the photoelectric conversion material layer includes semiconductor materials, including but not limited to perovskite, organic, dye-sensitized, amorphous silicon, copper indium gallium selenide, cadmium telluride, copper zinc tin sulfur, crystalline silicon, and other flexible semiconductor materials used in the manufacture of solar cells. Since the arc-shaped concave surface 101 is arc-shaped from top to bottom, when the backlight side of the charging plate body 100 is a vertical plane, the thickness of the charging plate body 100 changes from top to bottom with the change of the arc-shaped concave surface 101, that is, the horizontal distance between the points at each height of the arc-shaped concave surface 101 and the backlight side of the charging plate body 100 also changes from top to bottom with the change of the arc-shaped concave surface 101.

[0031] The height of the tangent point of the arc-shaped concave surface 101 and the vertical direction is greater than or equal to the height of the midpoint of the charging plate body 100, so that the arc-shaped concave surface 101 faces the horizontal direction or the inclined upward direction.

[0032] In this embodiment, the vertical direction refers to the direction of the top-bottom relationship, which can be from top to bottom or from bottom to top. The tangent point between the curved concave surface 101 and the vertical direction, shown as point m in Figures 1-3, can be understood as the tangent point between the curved concave surface 101 and a virtual line in the vertical direction. If the backlight surface of the solar charging plate is a plane parallel to the vertical direction, the tangent point between the curved concave surface 101 and the vertical direction is the shortest distance from the curved concave surface 101 to the backlight surface.

[0033] The direction facing the arcuate concave surface 101 refers to the direction in which the midpoint of the arcuate concave surface 101 points to the corresponding arc center. For example, as shown in FIG1 , when the height of the point of tangency between the arcuate concave surface 101 and the vertical direction is equal to the height of the midpoint of the charging plate body 100, the height of the midpoint of the arcuate concave surface 101 is equal to the height of the point of tangency between the arcuate concave surface 101 and the vertical direction. Since the arc center of the arcuate concave surface 101 and the point of tangency between the arcuate concave surface 101 and the vertical direction are at the same height, the arc center of the arcuate concave surface 101 and the midpoint of the arcuate concave surface 101 are at the same height. In this case, the direction in which the midpoint of the arcuate concave surface 101 points to the corresponding arc center is horizontal, that is, the arcuate concave surface 101 faces the horizontal direction. As shown in Figures 2 and 3, when the height of the point of intersection of the curved concave surface 101 with the vertical direction is greater than the height of the midpoint of the charging plate body 100, the height of the midpoint of the curved concave surface 101 is less than the height of the point of intersection of the curved concave surface 101 with the vertical direction. Since the arc center of the curved concave surface 101 and the point of intersection of the curved concave surface 101 with the vertical direction are at the same height, the arc center of the curved concave surface 101 is higher than the midpoint of the curved concave surface 101. At this time, the direction from the midpoint of the curved concave surface 101 to the corresponding arc center is an obliquely upward direction, that is, the curved concave surface 101 faces an obliquely upward direction. In this embodiment, in Figure 3, the height of the point of intersection of the curved concave surface 101 with the vertical direction is the highest point on the backlight surface of the charging plate body 100.

[0034] Compared to the prior art, the light-powered charging plate of the present application includes a charging plate body 100, one side of which is the light-facing side. The light-facing side of the charging plate body 100 is provided with an arc-shaped concave surface 101. The arc-shaped concave surface 101 is arc-shaped from top to bottom. A photoelectric conversion material layer is provided on the surface of the arc-shaped concave surface 101, which can convert received light energy into electrical energy. Furthermore, the design of the arc-shaped concave surface 101 increases the area of ​​the photoelectric conversion material layer, thereby increasing the area exposed to light and the amount of light energy received, thereby improving the photoelectric conversion capacity and charging efficiency. Furthermore, because the height of the point of tangency of the arc-shaped concave surface 101 with the vertical direction is greater than or equal to the height of the midpoint of the charging plate body 100, the arc-shaped concave surface 101 can be oriented horizontally or obliquely upward, which further facilitates the photoelectric conversion material layer to receive light that is obliquely irradiated from top to bottom onto the arc-shaped concave surface 101 of the charging plate body 100, further increasing the amount of photoelectric conversion and improving charging efficiency. Among them, since the present application performs photoelectric conversion through the photoelectric conversion material layer of the arc-shaped concave surface 101 on one side of the charging plate body 100, the light energy charging plate of the present application is suitable for electrical equipment that is placed vertically for a long time, such as electronic price tags on shelves. The light energy charging plate of the present application is directly installed on the electronic price tag, which can increase the photoelectric conversion amount and charging efficiency, and does not require connection through additional wiring layout.

[0035] In one feasible embodiment, the point of intersection of the curved concave surface 101 and the vertical direction is located at the level of the midpoint of the charging plate body 100, and the thickness of the top of the charging plate body 100 is equal to the thickness of the bottom of the charging plate body 100. This facilitates the photoelectric conversion material layer on the curved concave surface 101 to receive light from the plane or from above.

[0036] In one feasible embodiment, the point of tangency between the curved concave surface 101 and the vertical direction is located between the midpoint of the charging plate body 100 and the top of the charging plate body 100. The thickness of the top of the charging plate body 100 is less than the thickness of the bottom of the charging plate body 100. This reduces obstruction of the top of the charging plate body 100, allowing the photoelectric conversion material layer on the curved concave surface 101 to more fully receive light from the oblique direction above, which is beneficial for improving the photoelectric conversion efficiency.

[0037] In one feasible embodiment, the point of intersection of the curved concave surface 101 and the vertical direction is located at the top of the charging plate 100. As shown in Figure 3, when the point of intersection of the curved concave surface 101 and the vertical direction is located at the top of the charging plate 100, the curved concave surface 101 forms an arc-shaped slope from top to bottom. This further reduces obstruction on the top of the charging plate 100, allowing the photoelectric conversion material layer on the curved concave surface 101 to more fully receive light from the oblique direction above, which is beneficial for improving the photoelectric conversion efficiency.

[0038] In a feasible embodiment, the maximum value of the arc radius corresponding to the arc-shaped concave surface 101 is: Rmax=(h 2 +T 2 ) / 2T;

[0039] Among them, Rmax represents the maximum value of the arc radius corresponding to the arc-shaped concave surface 101, h represents the height of the tangent point of the arc-shaped concave surface 101 and the vertical direction relative to the bottom of the charging plate body 100, and T represents the maximum thickness of the charging plate body 100.

[0040] Referring to FIG4 , a second embodiment of the present application provides an electronic price tag, comprising: a light-powered charging plate 1 and a price tag body 2, wherein the light-powered charging plate 1 is electrically connected to the price tag body 2; the light-powered charging plate 1 includes a charging plate body, wherein the light-facing side of the charging plate body is provided with a curved concave surface in a vertical direction, and a photoelectric conversion material layer is provided on the surface of the curved concave surface;

[0041] The height of the tangent point of the arc-shaped concave surface and the vertical direction is greater than or equal to the height of the midpoint of the charging plate body, so that the arc-shaped concave surface faces the horizontal direction or the inclined upward direction.

[0042] Compared to the prior art, the light-energy charging plate 1 of the electronic price tag of the present application includes a charging plate body, wherein the light-facing side of the charging plate body is provided with an arc-shaped concave surface in the vertical direction, and the surface of the arc-shaped concave surface is provided with a photoelectric conversion material layer. The photoelectric conversion material layer can convert the received light energy into electrical energy. Moreover, because the design of the arc-shaped concave surface can increase the area of ​​the photoelectric conversion material layer, the area in contact with light is increased, and the amount of light energy received is increased, thereby improving the photoelectric conversion capacity and charging efficiency. Furthermore, because the height of the tangent point of the arc-shaped concave surface with the vertical direction is greater than or equal to the height of the midpoint of the charging plate body, the arc-shaped concave surface can be made to face the horizontal direction or the oblique upward direction, which is more conducive to the photoelectric conversion material layer receiving light that is obliquely irradiated from the top to the bottom by the arc-shaped concave surface of the charging plate body, further increasing the photoelectric conversion amount and improving the charging efficiency.

[0043] In one feasible embodiment, the point of intersection of the curved concave surface and the vertical direction is located at the level of the midpoint of the charging plate, and the thickness of the top of the charging plate is equal to the thickness of the bottom of the charging plate. This facilitates the photoelectric conversion material layer on the curved concave surface to receive light from the plane or from above.

[0044] In one feasible embodiment, the point of tangency between the curved concave surface and the vertical direction is located between the midpoint of the charging plate and the top of the charging plate, and the thickness of the top of the charging plate is less than the thickness of the bottom of the charging plate. This reduces obstruction from the top of the charging plate, allowing the photoelectric conversion material layer on the curved concave surface to more fully receive light from obliquely above, thereby improving the photoelectric conversion efficiency.

[0045] In one feasible embodiment, the point of intersection of the curved concave surface and the vertical direction is located at the top of the charging plate. This further reduces the obstruction of the top of the charging plate, allowing the photoelectric conversion material layer on the curved concave surface to more fully receive the light from the upper direction, which is beneficial to improving the photoelectric conversion efficiency.

[0046] In a feasible embodiment, the maximum value of the arc radius corresponding to the arc-shaped concave surface is: Rmax=(h 2 +T 2 ) / 2T;

[0047] Among them, Rmax represents the maximum value of the arc radius corresponding to the arc-shaped concave surface, h represents the height of the tangent point of the arc-shaped concave surface and the vertical direction relative to the bottom of the charging plate body, and T represents the maximum thickness of the charging plate body.

[0048] Among them, when the height from the top to the bottom of the light energy charging plate 1 is fixed, the greater the maximum thickness of the charging plate body, the larger the arc radius corresponding to the arc-shaped concave surface can be; the larger the arc radius, the larger the area of ​​the arc-shaped concave surface, and the more light the photoelectric conversion material layer on the arc-shaped concave surface receives, which is beneficial to improving the photoelectric conversion amount.

[0049] This application takes the rectangular charging plate in Figure 4 as an example, where a, b, c and d are the four corner points of the charging plate, and is explained in conjunction with Figures 1 and 3.

[0050] The power supply capacity of traditional solar charging design is:

[0051] P0=ρ*|ac|*|ab|;

[0052] P0 represents the power supply capacity of the traditional solar charging design, |ac| represents the straight-line distance from corner point a to corner point c of the traditional solar charging design, |ab| represents the straight-line distance from corner point a to corner point b of the traditional solar charging design, |ac|*|ab| represents the area of ​​the traditional solar charging design, and ρ represents the power density of solar charging.

[0053] If the cross-sectional view of the light-powered charging plate of the present application is shown in FIG1 , its power supply capacity is:

[0054] Wherein, P represents the power supply capacity of the light energy charging board of the present application, |ac| represents the straight-line distance from corner point a to corner point c of the light energy charging board of the present application, It is the curvilinear distance from corner point a to corner point b of the light energy charging plate of the present application, that is, the curvilinear distance from corner point a to corner point b along the arc-shaped concave surface.

[0055] Therefore, the improvement in power supply between the solar charging panel of the present application and the traditional solar charging design is:

[0056] Wherein, η represents the improvement value of the light energy charging panel of the present application compared with the traditional solar energy charging design power supply, Indicates the aspect ratio of the arc-shaped concave surface. The curve diagram is shown in Figure 5. Theoretically, the maximum achievable improvement value is 57.08%. At this time, λ = 2, that is, |ab| = 2*|am|. Usually, the value of λ is 2 to 10. At this time, the improvement value η∈[2.65%, 57.08%].

[0057] If the cross-sectional view of the light-powered charging plate of the present application is shown in FIG3 , its power supply capacity is:

[0058] Wherein, P represents the power supply capacity of the light energy charging board of the present application, |ac| represents the straight-line distance from corner point a to corner point c of the light energy charging board of the present application, It is the curve distance from the corner point b to the point m of the light energy charging plate of this application.

[0059] Therefore, the improvement in power supply between the solar charging panel of the present application and the traditional solar charging design is:

[0060] Wherein, η represents the improvement value of the light energy charging panel of the present application compared with the traditional solar energy charging design power supply, represents the aspect ratio of the curved concave surface. The curve is shown in Figure 6. Theoretically, the maximum achievable improvement is 57.08% when λ = 1, meaning |ab| = |am|. For practical products, λ typically ranges from 2 to 10, resulting in an improvement range of η∈[0.67%, 15.91%].

[0061] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A light energy charging plate, characterized in that: include: A charging plate body, wherein one side of the charging plate body is a light-facing side, the light-facing side of the charging plate body is provided with an arc-shaped concave surface, the arc-shaped concave surface is arc-shaped from top to bottom, and a photoelectric conversion material layer is provided on the surface of the arc-shaped concave surface; The height of the tangent point of the arc-shaped concave surface with the vertical direction is greater than or equal to the height of the midpoint of the charging plate body, so that the arc-shaped concave surface faces the horizontal direction or faces the inclined upward direction.

2. The light energy charging plate according to claim 1, characterized in that: The tangent point between the arc-shaped concave surface and the vertical direction is located at the top of the charging plate body.

3. The light energy charging plate according to claim 1, characterized in that: The tangent point of the arc-shaped concave surface with the vertical direction is located between the midpoint of the charging plate body and the top of the charging plate body, and the thickness of the top of the charging plate body is less than the thickness of the bottom of the charging plate body.

4. The light energy charging plate according to claim 1, characterized in that: The tangent point of the arc-shaped concave surface and the vertical direction is located at a horizontal position of the midpoint of the charging plate body, and the top thickness of the charging plate body is equal to the bottom thickness of the charging plate body.

5. The light energy charging plate according to any one of claims 1 to 4, characterized in that: The maximum value of the arc radius corresponding to the arc concave surface is: Rmax = (h 2 +T 2 ) / 2T; Among them, Rmax represents the maximum value of the arc radius corresponding to the arc-shaped concave surface, h represents the height of the tangent point of the arc-shaped concave surface and the vertical direction relative to the bottom of the charging plate body, and T represents the maximum thickness of the charging plate body.

6. An electronic price tag, characterized in that: include: A light-energy charging plate and a price tag body, wherein the light-energy charging plate is electrically connected to the price tag body; the light-energy charging plate comprises a charging plate body, wherein a curved concave surface is provided on the light-facing side of the charging plate body in a vertical direction, and a photoelectric conversion material layer is provided on the surface of the curved concave surface; The height of the tangent point of the arc-shaped concave surface with the vertical direction is greater than or equal to the height of the midpoint of the charging plate body, so that the arc-shaped concave surface faces the horizontal direction or faces the inclined upward direction.

7. The electronic price tag according to claim 6, characterized in that: The tangent point between the arc-shaped concave surface and the vertical direction is located at the top of the charging plate body.

8. The electronic price tag according to claim 6, characterized in that: The tangent point of the arc-shaped concave surface with the vertical direction is located between the midpoint of the charging plate body and the top of the charging plate body, and the thickness of the top of the charging plate body is less than the thickness of the bottom of the charging plate body.

9. The electronic price tag according to claim 6, characterized in that: The tangent point of the arc-shaped concave surface and the vertical direction is located at a horizontal position of the midpoint of the charging plate body, and the top thickness of the charging plate body is equal to the bottom thickness of the charging plate body.

10. The electronic price tag according to any one of claims 6 to 9, characterized in that: The maximum value of the arc radius corresponding to the arc concave surface is: Rmax = (h 2 +T 2 ) / 2T; Among them, Rmax represents the maximum value of the arc radius corresponding to the arc-shaped concave surface, h represents the height of the tangent point of the arc-shaped concave surface and the vertical direction relative to the bottom of the charging plate body, and T represents the maximum thickness of the charging plate body.

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