Photovoltaic cell panel and photovoltaic power generation device

Abstract

The utility model relates to the technical field of heat dissipation of photovoltaic cell panels, in particular to a photovoltaic cell panel and a photovoltaic power generation device. The photovoltaic cell panel comprises: a substrate; the back surface of the battery panel body is a mounting surface, and the battery panel body is provided with a bottom side part and a top side part; the heat dissipation pipes are fixedly mounted on the mounting surface, each heat dissipation pipe is provided with a heat conduction channel penetrating and extending in the width direction of the battery panel body, and the size of each heat conduction channel is gradually reduced in the direction from the bottom side part to the top side part of the battery panel body; and the heat conduction mechanism is fixedly mounted on the mounting surface, the heat conduction mechanism is arranged to be capable of conducting heat of the battery panel body to the position, close to the bottom side part, of the heat conduction channel of the heat dissipation pipe, and the heat conductivity of the heat conduction mechanism is higher than that of the heat dissipation pipe. Through arranging the heat dissipation pipe and the heat conduction mechanism which are in mutual heat conduction cooperation, the heat dissipation capability of the photovoltaic cell panel can be effectively improved, and the stable power generation efficiency of the photovoltaic cell panel is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of photovoltaic panels, in particular to a photovoltaic panel and a photovoltaic power generation device. Background Art

[0002] When photovoltaic panels are exposed to sunlight, some of the incident solar energy is converted into electricity, while the rest is converted into heat. This heat causes the panels to heat up. For photovoltaic power generation systems, the temperature of the panels has a significant impact on their power generation efficiency. Generally, the optimal temperature range for photovoltaic panels is between 20°C and 25°C. However, when the temperature rises above 30°C, the panel's power generation efficiency decreases.

[0003] Therefore, in order to ensure the stable power generation efficiency of photovoltaic panels, it is necessary to improve the heat dissipation capacity of photovoltaic panels. Utility Model Content

[0004] The purpose of the utility model is to improve the heat dissipation capacity of photovoltaic panels.

[0005] In order to solve the above technical problems, the utility model provides a photovoltaic panel, which includes: a panel body, the top surface of the panel body is a light irradiation surface, the back surface of the panel body is a mounting surface, the panel body has a bottom side facing the ground and a top side facing away from the ground; a plurality of heat dissipation pipes, the plurality of heat dissipation pipes are spaced apart along the length direction of the panel body, the heat dissipation pipes are fixedly mounted on the mounting surface, the heat dissipation pipes have a heat conduction channel extending through along the width direction of the panel body, the size of the heat conduction channel gradually decreases in the direction from the bottom side to the top side thereof; and a heat conduction mechanism, the heat conduction mechanism is fixedly mounted on the mounting surface, the heat conduction mechanism is configured to conduct heat from the panel body to a position of the heat conduction channel of the heat dissipation pipe near the bottom side, and the thermal conductivity of the heat conduction mechanism is higher than that of the heat conduction pipe.

[0006] In some embodiments, the heat dissipation tube extends linearly along the width direction of the solar panel body, the top end of the heat dissipation tube is flush with the top side, and the bottom end of the heat dissipation tube is flush with the bottom side.

[0007] In some embodiments, the cross-sectional area of ​​the end of the heat conducting channel facing the bottom side is 2 to 4 times the cross-sectional area of ​​the end of the heat conducting channel facing the top side.

[0008] In some embodiments, the heat dissipation pipe includes a first tube wall, a second tube wall, a third tube wall and a fourth tube wall, each of which is arranged in a trapezoidal shape; the first tube wall is attached to the mounting surface, the second tube wall and the first tube wall are spaced apart in the thickness direction of the battery panel body, and the spacing between the second tube wall and the first tube wall gradually decreases along the direction from the bottom side to the top side; the two sides of the first tube wall in the width direction of the battery panel body and the two sides of the first tube wall in the width direction of the battery panel body are sealed connected by the third tube wall and the fourth tube wall respectively, and the spacing between the third tube wall and the fourth tube wall gradually decreases along the direction from the bottom side to the top side; and a heat conduction channel is defined between the first tube wall, the second tube wall, the third tube wall and the fourth tube wall.

[0009] In some embodiments, the heat conduction mechanism includes a heat conducting mechanism and multiple heat dissipation mechanisms. The heat conducting mechanism is fixedly installed on the mounting surface, and the heat dissipation mechanisms are arranged one by one at positions near the bottom side of the heat conducting channels of multiple heat pipes. The heat conducting mechanism is fixedly connected to the heat dissipation mechanism.

[0010] In some embodiments, the heat conduction mechanism includes multiple heat conduction ribs and multiple heat conduction connecting plates, the heat conduction ribs and the heat conduction connecting plates are fixedly connected to the mounting surface, and the heat conduction ribs and the heat dissipation pipes are spaced apart, and the heat dissipation mechanism is connected to at least a portion of the heat conduction ribs through the heat conduction connecting plates.

[0011] In some embodiments, the thermally conductive connecting plate extends linearly along the length direction of the solar panel body; a portion of the plurality of thermally conductive ribs extends linearly along the length direction of the solar panel body, and another portion of the plurality of thermally conductive ribs extends linearly along the width direction of the solar panel body.

[0012] In some embodiments, the heat dissipation mechanism includes a heat dissipation block, which is disposed near the bottom side of the heat conduction channel of the heat dissipation pipe and is fixedly connected to the corresponding heat conduction connecting plate.

[0013] In some embodiments, a plurality of heat sinks are provided on a side of the heat sink facing away from the mounting surface, and the plurality of heat sinks are spaced apart along the length direction of the solar panel body.

[0014] Another aspect of the present invention provides a photovoltaic power generation device, which includes the photovoltaic cell panel of the above embodiment.

[0015] The above technical solution of the utility model has the following beneficial effects:

[0016] The thermal conductivity of the heat conduction mechanism is higher than that of the heat pipe, so the heat of the solar panel body is mainly conducted to the heat conduction mechanism, and the heat conduction mechanism further conducts the heat to the heat conduction channel of the heat pipe near the bottom side, and gathers the heat at the position near the bottom side of the heat conduction channel, causing the temperature of the air near the bottom side of the heat conduction channel to rise sharply, that is, causing the temperature of the air at the bottom of the heat conduction channel to rise sharply, causing the temperature difference between the bottom of the heat conduction channel and the outside of the heat conduction channel to increase significantly, thereby forming a chimney effect, prompting the hot air to flow rapidly upward along the heat conduction channel until it leaves the heat conduction channel; and the continuously generated hot air can continuously carry away the heat from the solar panel body, accelerate the heat dissipation of the solar panel body, effectively reduce the temperature of the solar panel body, and thus ensure the stable power generation efficiency of the photovoltaic panel. Therefore, by providing the heat pipe and heat conduction mechanism that cooperate with each other in heat conduction, the heat dissipation capacity of the photovoltaic panel can be effectively improved, and the stable power generation efficiency of the photovoltaic panel can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 It is a side view schematic diagram of a photovoltaic cell panel in one embodiment of the present utility model;

[0019] Figure 2 It is a rear view schematic diagram of a photovoltaic cell panel in one embodiment of the present utility model;

[0020] Figure 3 This is the connection intention of the heat sink block and the heat sink in one embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 1. Solar panel body; 11. Light exposure surface; 12. Mounting surface; 13. Bottom side; 14. Top side; 2. Heat dissipation pipe; 21. First tube wall; 22. Second tube wall; 23. Third tube wall; 24. Fourth tube wall; 25. Heat conduction channel; 3. Heat conduction mechanism; 31. Heat conduction mechanism; 311. Heat conduction connecting plate; 312. Heat conduction ribs; 32. Heat dissipation mechanism; 321. Heat dissipation block; 322. Heat sink. DETAILED DESCRIPTION

[0023] The following embodiments of the present disclosure are further described in detail with reference to the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0024] The present disclosure provides these embodiments in order to make this disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0025] It should be noted that, in the description of this disclosure, unless otherwise specified, "plurality" means greater than or equal to two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are intended solely to facilitate and simplify the description of this disclosure, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] In addition, the terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements.

[0027] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this disclosure depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0028] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0030] like Figure 1 and Figure 2 As shown, the present invention provides a photovoltaic panel comprising a panel body 1, a plurality of heat pipes 2, and a heat transfer mechanism 3. The top surface of the panel body 1 serves as a light irradiation surface 11, and the back surface of the panel body 1 serves as a mounting surface 12. The panel body 1 has a bottom side 13 facing the ground and a top side 14 facing away from the ground. The plurality of heat pipes 2 are spaced apart along the length of the panel body 1 and are fixedly mounted to the mounting surface 12. Each heat pipe 2 has a heat conduction channel 25 extending through the width of the panel body 1, with the dimension of the heat conduction channel 25 gradually decreasing from the bottom side 13 to the top side 14. The heat conduction mechanism 3 is fixedly mounted to the mounting surface 12 and is configured to transfer heat from the panel body 1 to the heat conduction channel 25 of the heat pipe 2 near the bottom side 13. The heat conduction mechanism 3 has a higher thermal conductivity than the heat conduction tube 2.

[0031] Specifically, the thermal conductivity of the heat conduction mechanism 3 is higher than that of the heat pipe 2, so the heat of the solar panel body 1 will mainly be conducted to the heat conduction mechanism 3, and the heat conduction mechanism 3 will further conduct the heat to the position of the heat conduction channel 25 of the heat pipe 2 near the bottom side 13, and gather at the position of the heat conduction channel 25 near the bottom side 13, so that the temperature of the air at the position of the heat conduction channel 25 near the bottom side 13 rises sharply, that is, the air temperature at the bottom of the heat conduction channel 25 rises sharply, and the temperature difference between the bottom and the top of the heat conduction channel 25 increases significantly, thereby forming a chimney effect, prompting the hot air to flow rapidly upward along the heat conduction channel 25 until it leaves the heat conduction channel 25; and the continuously generated hot air can continuously take away the heat from the solar panel body 1, accelerate the heat dissipation of the solar panel body 1, and effectively reduce the temperature of the solar panel body 1, thereby ensuring the stable power generation efficiency of the photovoltaic panel. Therefore, by providing the heat dissipation pipe 2 and the heat conduction mechanism 3 that cooperate with each other in heat conduction, the heat dissipation capacity of the photovoltaic panel can be effectively improved, ensuring the stability of the power generation efficiency of the photovoltaic panel.

[0032] like Figure 1and Figure 2 As shown, in some embodiments of the present invention, the heat pipe 2 extends linearly along the width of the solar panel body 1, with the top end of the heat pipe 2 flush with the top side 14, and the bottom end of the heat pipe 2 flush with the bottom side 13. Specifically, this arrangement of the heat pipe 2 simplifies its structure and adapts it to the width of the solar panel body 1. Furthermore, hot air exhausted from the top end of the heat pipe 2 is less likely to come into contact with the solar panel body 1, preventing heat from returning.

[0033] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the cross-sectional area of ​​the end of the heat conducting channel 25 facing the bottom side 13 is 2 to 4 times the cross-sectional area of ​​the end of the heat conducting channel 25 facing the top side 14, to fully realize the chimney effect. Therefore, the heat conduction mechanism 3 can transfer heat from the solar panel body 1 to the end of the heat conducting channel 25 facing the bottom side 13, heating the air at that location. The heated air can then flow more quickly to the end of the heat conducting channel 25 facing the top side 14, and further into the external environment, achieving higher heat dissipation efficiency.

[0034] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the heat dissipation pipe 2 includes a first tube wall 21, a second tube wall 22, a third tube wall 23 and a fourth tube wall 24, each of which is arranged in a trapezoidal shape; the first tube wall 21 is attached to the mounting surface 12, the second tube wall 22 and the first tube wall 21 are spaced apart in the thickness direction of the battery panel body 1, and the spacing between the second tube wall 22 and the first tube wall 21 gradually decreases along the direction from the bottom side 13 to the top side 14; both sides of the first tube wall 21 in the width direction of the battery panel body 1 and both sides of the first tube wall 21 in the width direction of the battery panel body 1 are sealed by the third tube wall 23 and the fourth tube wall 24, respectively, and the spacing between the third tube wall 23 and the fourth tube wall 24 gradually decreases along the direction from the bottom side 13 to the top side 14; and a heat conduction channel 25 is defined between the first tube wall 21, the second tube wall 22, the third tube wall 23 and the fourth tube wall 24.

[0035] Specifically, the second tube wall 22 and the first tube wall 21 are spaced apart in the thickness direction of the panel body 1, and the third tube wall 23 and the fourth tube wall 24 are spaced apart in the length direction of the panel body 1. The first tube wall 21, the second tube wall 22, the third tube wall 23, and the fourth tube wall 24 surround the heat conduction channel 25. Furthermore, the length and width of the heat conduction channel 25 gradually decrease from the bottom side 13 to the top side 14. In addition, the heat dissipation tube 2 is configured in a prism shape, and the first tube wall 21 is affixed to the mounting surface 12, facilitating installation of the heat dissipation tube 2. Preferably, the heat dissipation tube 2 can be mounted to the mounting surface 12 using multiple bolts to facilitate disassembly.

[0036] In some embodiments, the heat pipe 2 may be made of a material with low thermal conductivity, such as ceramic or polystyrene, which is not limited by the present invention. In some embodiments, the heat conduction mechanism 3 may be made of a metal material with high thermal conductivity, which is not limited by the present invention.

[0037] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the heat conduction mechanism 3 includes a heat conduction mechanism 31 and multiple heat dissipation mechanisms 32. The heat conduction mechanism 31 is fixedly installed on the mounting surface 12, and the heat dissipation mechanisms 32 are arranged one by one in the heat conduction channels 25 of the multiple heat pipes 2 near the bottom side 13. The heat conduction mechanism 31 is fixedly connected to the heat dissipation mechanism 32.

[0038] Specifically, the heat of the solar panel body 1 can be transferred to the heat-conducting mechanism 31, and the heat-conducting mechanism 31 can further conduct the heat to the heat dissipation mechanism 32. Each heat pipe 2 is provided with a heat dissipation mechanism 32, and the heat dissipation mechanism 32 is located at a position close to the bottom side 13 of the heat-conducting channel 25. The heat dissipation mechanism 32 can dissipate heat in the heat-conducting channel 25, thereby heating the air near it. In addition, the heat-conducting mechanism 31 is separated from the heat-conducting pipe 2 to prevent the heat-conducting mechanism 31 from directly conducting heat to the heat-conducting pipe 2, thereby increasing the temperature difference between the position close to the bottom side 13 of the heat-conducting channel 25 and the position close to the top side 14 of the heat-conducting channel 25, and enhancing the chimney effect. Of course, the thermal conductivity of the heat-conducting mechanism 31 and the heat dissipation mechanism 32 are both higher than the thermal conductivity of the heat pipe 2.

[0039] Of course, the heat conduction mechanism 3 may also be any other structural form that can achieve the above technical effects, and the present invention does not limit this.

[0040] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the heat-conducting mechanism 31 includes a plurality of heat-conducting ribs 312 and a plurality of heat-conducting connecting plates 311, the heat-conducting ribs 312 and the heat-conducting connecting plates 311 are fixedly connected to the mounting surface 12, and the heat-conducting ribs 312 are spaced apart from the heat-dissipating pipes 2, and the heat-dissipating mechanism 32 is connected to at least a portion of the heat-conducting ribs 312 through the heat-conducting connecting plates 311.

[0041] Specifically, the thermally conductive ribs 312 can transfer heat from the solar panel body 1 to the heat dissipation mechanism 32 via the thermally conductive connecting plate 311. Preferably, the cross-section of the thermally conductive connecting plate 311 is larger than the cross-section of the thermally conductive ribs 312, allowing the thermally conductive connecting plate 311 to conduct more heat. Preferably, the thermally conductive ribs 312 and the thermally conductive connecting plate 311 can be mounted to the mounting surface 12 using multiple bolts for easy removal.

[0042] In some embodiments, the heat-conducting ribs 312 and the heat-conducting connecting plates 311 may be made of copper, aluminum, tungsten, stainless steel, or the like.

[0043] Of course, the heat conducting mechanism 31 may also be any other structural form that can achieve the above technical effects, and the present invention does not limit this.

[0044] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the heat-conducting connecting plate 311 extends linearly along the length direction of the battery panel body 1; a portion of the multiple heat-conducting ribs 312 extends linearly along the length direction of the battery panel body 1, and another portion of the multiple heat-conducting ribs 312 extends linearly along the width direction of the battery panel body 1.

[0045] Specifically, all thermally conductive connecting plates 311 are spaced apart along the length of the panel body 1, and both ends of each thermally conductive connecting plate 311 extend into two adjacent heat pipes 2 and are fixedly connected to the heat dissipation mechanisms 32 in the two heat pipes 2. Furthermore, because some thermally conductive ribs 312 extend along the length of the panel body 1 and some extend along the width of the panel body 1, these thermally conductive ribs 312 form a crisscross grid pattern, extending and covering a wide range, helping to transfer more heat to the heat dissipation mechanisms 32.

[0046] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the heat dissipation mechanism 32 includes a heat dissipation block 321, which is arranged at a position close to the bottom side 13 of the heat conduction channel 25 of the heat dissipation pipe 2, and the heat dissipation block 321 is fixedly connected to the corresponding heat conduction connecting plate 311.

[0047] Specifically, the heat sink 321 can be configured in a cylindrical or rectangular shape, such as one with a large heat dissipation surface. The heat sink 321 can be made of copper, aluminum, tungsten, synthetic diamond, or graphite, although this is not a limitation of the present invention. Preferably, the heat sink 321 can be mounted to the first tube wall 21 using multiple bolts for easy removal.

[0048] Of course, the heat dissipation mechanism 32 may also be any other structural form that can achieve the above technical effects, and the present invention does not limit this.

[0049] like Figure 3 As shown, in some embodiments of the present invention, a plurality of heat sinks 322 are provided on a side of the heat sink block 321 facing away from the mounting surface 12 , and the plurality of heat sinks 322 are spaced apart along the length direction of the solar panel body 1 .

[0050] Specifically, the heat sink 322 can increase the heat dissipation surface of the heat sink 321, improve the heat dissipation capacity of the heat sink 32, and further enhance the chimney effect. Preferably, the heat sink 321 and the heat sink 322 are integrally formed.

[0051] The utility model also provides a photovoltaic power generation device, which includes the photovoltaic battery panel of the above embodiment.

[0052] Specifically, since the photovoltaic power generation device adopts the above-mentioned photovoltaic panels, the photovoltaic power generation device can also achieve the above-mentioned technical effects.

[0053] Thus far, various embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0054] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced with equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts.

Claims

1. A photovoltaic panel, characterized in that: include: A solar panel body (1), wherein the top surface of the solar panel body (1) is a light irradiation surface (11), the back surface of the solar panel body (1) is a mounting surface (12), and the solar panel body (1) has a bottom side portion (13) facing the ground and a top side portion (14) facing away from the ground; a plurality of heat dissipation tubes (2), the plurality of heat dissipation tubes (2) being spaced apart along the length direction of the battery panel body (1), the heat dissipation tubes (2) being fixedly mounted on the mounting surface (12), the heat dissipation tubes (2) having heat conduction channels (25) extending through the width direction of the battery panel body (1), the size of the heat conduction channels (25) gradually decreasing along the direction from the bottom side (13) to the top side (14); and A heat conduction mechanism (3) is fixedly mounted on the mounting surface (12), and the heat conduction mechanism (3) is configured to conduct heat from the battery panel body (1) to a position of the heat conduction channel (25) of the heat dissipation pipe (2) close to the bottom side (13), wherein the heat conductivity of the heat conduction mechanism (3) is higher than the heat conductivity of the heat dissipation pipe (2).

2. The photovoltaic panel according to claim 1, characterized in that: The heat dissipation tube (2) extends linearly along the width direction of the battery panel body (1); the top end of the heat dissipation tube (2) is flush with the top side portion (14); and the bottom end of the heat dissipation tube (2) is flush with the bottom side portion (13).

3. The photovoltaic panel according to claim 2, characterized in that: The cross-sectional area of ​​the end of the heat-conducting channel (25) facing the bottom side portion (13) is 2 to 4 times the cross-sectional area of ​​the end of the heat-conducting channel (25) facing the top side portion (14).

4. The photovoltaic panel according to claim 2 or 3, characterized in that: The heat dissipation pipe (2) comprises a first pipe wall (21), a second pipe wall (22), a third pipe wall (23) and a fourth pipe wall (24) which are respectively arranged in a trapezoidal shape; the first pipe wall (21) is attached to the mounting surface (12); the second pipe wall (22) and the first pipe wall (21) are spaced apart in the thickness direction of the battery plate body (1); and the spacing between the second pipe wall (22) and the first pipe wall (21) gradually decreases along the direction from the bottom side (13) to the top side (14); the first pipe wall (21) is spaced apart in the thickness direction of the battery plate body (1); Both sides of the cell plate body (1) in the width direction and both sides of the first tube wall (21) in the width direction of the cell plate body (1) are sealed by the third tube wall (23) and the fourth tube wall (24), respectively. The spacing between the third tube wall (23) and the fourth tube wall (24) gradually decreases along the direction from the bottom side (13) to the top side (14); and the heat conduction channel (25) is defined between the first tube wall (21), the second tube wall (22), the third tube wall (23) and the fourth tube wall (24).

5. The photovoltaic panel according to claim 1, characterized in that: The heat conduction mechanism (3) comprises a heat conduction mechanism (31) and a plurality of heat dissipation mechanisms (32); the heat conduction mechanism (31) is fixedly mounted on the mounting surface (12); the heat dissipation mechanisms (32) are arranged one by one in the heat conduction channels (25) of the plurality of heat dissipation pipes (2) at positions close to the bottom side portion (13); the heat conduction mechanism (31) and the heat dissipation mechanism (32) are fixedly connected.

6. The photovoltaic panel according to claim 5, characterized in that: The heat-conducting mechanism (31) comprises a plurality of heat-conducting ribs (312) and a plurality of heat-conducting connecting plates (311); the heat-conducting ribs (312) and the heat-conducting connecting plates (311) are fixedly connected to the mounting surface (12); the heat-conducting ribs (312) and the heat-dissipating pipes (2) are spaced apart; and the heat-dissipating mechanism (32) is connected to at least a portion of the heat-conducting ribs (312) via the heat-conducting connecting plates (311).

7. The photovoltaic panel according to claim 6, characterized in that: The heat-conducting connecting plate (311) extends linearly along the length direction of the battery panel body (1); a portion of the plurality of heat-conducting ribs (312) extends linearly along the length direction of the battery panel body (1), and another portion of the plurality of heat-conducting ribs (312) extends linearly along the width direction of the battery panel body (1).

8. The photovoltaic panel according to claim 6, characterized in that: The heat dissipation mechanism (32) comprises a heat dissipation block (321), which is arranged at a position close to the bottom side (13) of the heat conduction channel (25) of the heat dissipation pipe (2), and the heat dissipation block (321) is fixedly connected to the corresponding heat conduction connecting plate (311).

9. The photovoltaic panel according to claim 8, characterized in that: A plurality of heat sinks (322) are provided on a side of the heat sink block (321) facing away from the mounting surface (12), and the plurality of heat sinks (322) are spaced apart along the length direction of the solar panel body (1).

10. A photovoltaic power generation device, characterized in that: The photovoltaic power generation device comprises the photovoltaic panel according to any one of claims 1 to 9.

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