Heat dissipation assembly and photovoltaic assembly

Abstract

The embodiment of the invention provides a heat dissipation assembly and a photovoltaic assembly, and the heat dissipation assembly comprises a cooling assembly which comprises a heat conduction part and a condensation substance; the heat conduction part can be arranged on a photovoltaic frame used for installing a photovoltaic laminated board and is used for absorbing heat generated by the photovoltaic laminated board. The condensation substance is arranged on the heat conduction part and used for exchanging heat with the heat conduction part absorbing heat. According to the technical scheme of the embodiment of the invention, the heat conduction part is arranged to absorb heat generated by the photovoltaic laminated board, and then the condensation substance absorbs and stores the heat in the heat conduction part, so that cooling treatment of the photovoltaic laminated board is completed, and the power generation efficiency of the photovoltaic module is effectively improved; and after the photovoltaic module finishes working (without sunlight), the heat of the heat conduction part is released by the condensation substance, so that the effects that the ambient temperature around the photovoltaic laminated board is not increased during working, and subsequent heat dissipation of the photovoltaic module is facilitated can be achieved.

Description

Technical Field

[0001] This application relates to the technical field of solar photovoltaic modules, and particularly to a heat dissipation component and a photovoltaic module. Background Art

[0002] As a renewable and clean energy source, solar energy has received extensive attention from scholars. For the utilization of solar energy by photovoltaic cells, each square of the module can only utilize a part of the solar irradiance, and the remaining received energy is mostly lost in the form of heat. The energy lost as heat is far greater than the energy actually utilized by the module. However, the heat energy will cause the operating temperature of the module to rise, and the power generation efficiency of the module will become lower and lower as the temperature rises. The accumulation of heat energy will lead to a decreasing power generation efficiency of the module. When the temperature rises by 1°C, the power generation efficiency will decrease by 0.5%. Therefore, a lower temperature is beneficial to the improvement of efficiency, and how to improve the power generation efficiency by suppressing the temperature rise of solar cells has become a research hotspot.

[0003] In related technologies, usually the heat generated by the module is dissipated by means of air convection heat transfer. However, this method has a relatively slow heat transfer rate and limited air circulation for the modules in the middle position of the photovoltaic array, and the heat generated by the modules in the middle position cannot be dissipated through the frame in time. Therefore, the effect of dissipating heat by means of air convection is poor.

[0004] It should be noted that the above content is not necessarily prior art and is not used to limit the patent protection scope of this application. Summary of the Invention

[0005] Embodiments of this application provide a heat dissipation component and a photovoltaic module to solve or alleviate one or more of the above technical problems.

[0006] As a first aspect of the embodiments of this application, embodiments of this application provide a heat dissipation component, including: A cooling component, the cooling component includes a heat conduction part and is configured with a condensing substance; The heat conduction part can be arranged on a photovoltaic frame for installing a photovoltaic laminate to absorb the heat generated by the photovoltaic laminate; the condensing substance is arranged on the heat conduction part for heat exchange with the heat conduction part.

[0007] Optionally, the condensing substance includes a coolant and a condensing block; the heat conduction part is provided with a receiving chamber, the coolant can be arranged in the receiving chamber; the condensing block is arranged at one end of the heat conduction part; the coolant absorbs the heat of the photovoltaic laminate to form steam, and the steam condenses into a liquid after heat interaction with the condensing block.

[0008] Optionally, along the evaporation direction of the coolant, a baffle is provided on the inner wall of the accommodation chamber. An accommodation groove is formed between the baffle and the inner wall of the accommodation chamber, and the accommodation groove is used to accommodate the condensed liquid.

[0009] Optionally, the number of the baffles is several, and the several baffles are evenly spaced and arranged on the inner wall of the accommodation chamber; Wherein, an accommodation groove is formed between each baffle and the inner wall of the accommodation chamber.

[0010] Optionally, along the evaporation direction of the coolant, the included angle between the baffle and the axial direction of the heat conduction part is an acute angle.

[0011] Optionally, a heat dissipation part is provided at one end of the heat conduction part. The heat dissipation part includes heat dissipation strips with a hollow structure. The heat dissipation strips are arranged inside the condensation block, and the hollow structure of the heat dissipation strips is communicated with the accommodation chamber; Wherein, the heat dissipation strip is one of a linear strip, an arc strip, a bent strip and a spiral strip.

[0012] Optionally, the shape of the heat conduction part is one of an X shape, a Y shape, a U shape or an L shape.

[0013] As a second aspect of the embodiments of the present application, the embodiments of the present application provide a photovoltaic module, including: A photovoltaic frame for installing a photovoltaic laminate; The heat dissipation assembly as described in any one of the above; the heat dissipation assembly is located on the photovoltaic frame and is used to dissipate heat from the photovoltaic laminate.

[0014] Optionally, an installation opening is provided on the photovoltaic frame. The heat conduction part passes through the installation opening and is arranged on the photovoltaic frame, and the heat conduction part is arranged under the photovoltaic laminate; a reflection coating is provided on the side of the heat conduction part facing the photovoltaic laminate, and the reflection coating is used to reflect sunlight onto the photovoltaic laminate; Wherein, the heat conduction part and the photovoltaic laminate are arranged parallel to each other.

[0015] Optionally, the number of the heat conduction parts is several, and the several heat conduction parts are arranged in an array under the photovoltaic laminate.

[0016] The embodiments of the present application adopting the above technical solutions may include the following advantages: By allowing the heat conduction part to absorb the heat generated by the photovoltaic laminate, and then the condensing substance absorbs and stores the heat in the heat conduction part, the cooling treatment of the photovoltaic laminate is completed, thereby effectively improving the power generation efficiency of the photovoltaic module; and after the photovoltaic module finishes working (without sunlight), the condensing substance releases the heat of the heat conduction part, which can achieve the effect of not increasing the ambient temperature around the photovoltaic laminate during operation and is conducive to the subsequent heat dissipation of the photovoltaic module. Description of the Drawings In the drawings, unless otherwise specified, the same reference numerals throughout the several views denote the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0017] Figure 1 It is a schematic structural view of a photovoltaic module provided by an embodiment of the present application.

[0018] Figure 2 It is a partial structural view of a photovoltaic module provided by an embodiment of the present application to show the installation opening.

[0019] Figure 3 It is a cross-sectional view of a heat dissipation module provided by an embodiment of the present application disposed on the photovoltaic module.

[0020] Figure 4 It is a partial structural view of a heat dissipation module provided by an embodiment of the present application disposed on the photovoltaic module.

[0021] Figure 5 It is a cross-sectional view of the condensing block of the heat dissipation module provided by an embodiment of the present application to show the heat dissipation strips.

[0022] Description of Reference Numerals: 1. Photovoltaic frame; 11. Installation opening; 12. Top support plate; 13. Bottom support plate; 14. Horizontal plate; 15. Connecting plate; 16. Reinforcing plate; 17. Installation groove; 2. Photovoltaic laminate; 3. Cooling module; 31. Heat conduction part; 311. Accommodation chamber; 312. Baffle; 313. Accommodation groove; 314. Heat dissipation strip; 315. Reflection coating; 32. Cooling liquid; 33. Condensing block. Detailed Embodiments

[0023] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0024] It should be noted that the terms "first", "second", etc. in the description, claims and the above drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0025] Next, exemplary embodiments according to the present application will be described in more detail with reference to the drawings. It should be noted that these exemplary embodiments can be implemented in many different forms and should not be construed as being limited only to the embodiments set forth herein.

[0026] As Figures 1 - 5 shown, the heat dissipation assembly may include: A cooling assembly 3, the cooling assembly 3 includes a heat conduction part 31 and is configured with a condensation substance; the heat conduction part 31 can be arranged on the photovoltaic frame 1 for installing the photovoltaic laminate 2 to absorb the heat generated by the photovoltaic laminate 2. In the embodiment of the present application, the heat conduction part 31 can adopt a rod-shaped structure or a rectangular structure. The heat conduction part 31 is fixed on the photovoltaic frame 1 by means of screws, bolts or buckles. The condensation substance is arranged on the heat conduction part 31 for heat exchange with the heat conduction part 31. The condensation substance can be fixed on the heat conduction part 31 by means of screws, bolts or snap connections.

[0027] In this embodiment, by arranging the heat conduction part 31 on the photovoltaic frame 1 to absorb the heat generated by the photovoltaic laminate 2, and then the condensation substance absorbs and releases the heat in the heat conduction part 31, thereby completing the temperature reduction treatment of the photovoltaic laminate 2, and effectively improving the power generation efficiency of the photovoltaic module; and after the photovoltaic module finishes working (without sunlight), the condensation substance absorbs the heat of the heat conduction part 31 and then dissipates it, which can achieve the effect of not increasing the ambient temperature around the photovoltaic laminate 2 during operation, and is beneficial to the subsequent heat dissipation of the photovoltaic module.

[0028] In some embodiments, the condensation substance can be an external water tank, and the heat conduction part 31 is cooled by means of water circulation. By arranging an external water tank, the effect of cooling the heat conduction part 31 can also be achieved, thereby improving the power generation efficiency of the photovoltaic module.

[0029] In an alternative embodiment, the condensing substance includes a coolant 32 and a condensing block 33; the function of the coolant 32 is to evaporate after being heated to take away the temperature, so as to realize the cooling of the heat conducting part 31. It should be noted that in order to maintain the photovoltaic module at the optimal operating temperature, the type of the coolant 32 and the internal pressure of the heat conducting part 31 need to be determined according to the ambient temperature at which the photovoltaic module operates, and at the same time, the condensing block 33 (heat storage material) is determined according to the coolant 32. For example, taking the temperature of the photovoltaic module under STC conditions as 25°C as an example, the coolant 32 can be selected as methanol, the pressure of the heat conducting part 31 is 15 KPa, at this time the evaporation temperature of methanol is about 25°C, and the condensing block 33 (heat storage material) is selected as diammonium hydrogen phosphate (NH4H2PO4), and the phase change temperature of diammonium hydrogen phosphate (NH4H2PO4) is about 15°C, which can timely cool the gaseous methanol and turn it back into a liquid state. In addition, the coolant 32 can also be selected from other alcohols, fluorides, heat-conducting oils, etc. The condensing block 33 can also be selected from other inorganic salts, esters, composite materials, etc.

[0030] The heat conducting part 31 is provided with a receiving chamber 311, and the coolant 32 can be arranged in the receiving chamber 311. Since the heat conducting part 31 selected in the embodiment of the present application is a circular rod-shaped structure, the axial direction of the heat conducting part 31 is the length direction of the heat conducting part 31. The heat conducting part 31 is a hollow structure, and the hollow structure is the receiving chamber 311, and the coolant 32 is placed in the receiving chamber 311, so as to realize the cooling of the heat conducting part 31. Since the photovoltaic module is generally installed obliquely, that is, the photovoltaic laminate 2 is obliquely arranged to facilitate the absorption of sunlight, the heat conducting part 31 is also obliquely arranged.

[0031] The condensing block 33 is arranged at one end of the heat conducting part 31 and is used for condensing the steam formed by absorbing the heat of the photovoltaic laminate 2 and evaporating. The steam is condensed into a liquid after heat interaction with the condensing block 33. The condensing block 33 is fixed on the heat conducting part 31 by means of screws, bolts, buckles or plug-in connections. In the embodiment of the present application, the condensing block 33 is fixed on the heat conducting part 31 by means of plug-in connection.

[0032] In this embodiment, it should be noted that the transfer of heat is mainly divided into three forms: heat conduction, heat convection, and heat radiation. Generally, heat conduction is much faster than heat convection and heat radiation. The carrier of heat conduction is usually metal heat transfer, and the metal with the highest thermal conductivity is silver. Therefore, the material of the heat conduction part 31 can be metal materials such as copper, aluminum, and stainless steel, which have the characteristic of fast heat conduction and can quickly conduct the heat generated by the photovoltaic module to the inside of the heat conduction part 31 to be absorbed by the coolant 32. The heat generated by the photovoltaic laminate 2 is timely conducted to the condensation block 33 (heat storage material) through the heat conduction part 31 for storage, and then at night, the condensation block 33 (heat storage material) releases the heat stored during the day to the environment, which is beneficial to the subsequent heat dissipation of the photovoltaic module. In the embodiment of the present application, the coolant 32 absorbs heat and evaporates and releases heat and liquefies. Under the action of gravity, the liquefied coolant 32 will flow back into the heat conduction part 31 again, so as to achieve the self-circulation of the refrigeration system without using additional equipment. At night, the environmental temperature drops, and the condensation block 33 (heat storage material) releases the heat stored during the day at night so as to continue to absorb heat the next day.

[0033] In an alternative embodiment, along the volatilization direction of the coolant 32, a baffle 312 is provided on the inner wall of the accommodation chamber 311. The baffle 312 can be integrally formed on the inner wall of the accommodation chamber 311 or fixed to the inner wall of the accommodation chamber 311 by bolts or screws. In the embodiment of the present application, the surface of the heat conduction part 31 is recessed inward so that the baffle 312 is formed inside the heat conduction part 31. From the outside of the heat conduction part 31, a notch is formed at the bottom of the heat conduction part 31. Therefore, when installing the heat conduction part 31, it can be well distinguished from the front and back of the heat conduction part 31, and the front and back of the heat conduction part 31 cannot be installed reversely during the installation process, further improving the installation efficiency of the heat conduction part 31.

[0034] An accommodation groove 313 is formed between the baffle 312 and the inner wall of the accommodation chamber 311, and the accommodation groove 313 is used to accommodate the coolant 32 that forms a liquid after condensation. In the embodiment of the present application, the heat conduction part 31 can be arranged below the photovoltaic laminate 2. Therefore, the baffle 312 is arranged on the inner wall of the accommodation chamber 311 away from the photovoltaic laminate 2, that is, at the bottom position of the heat conduction part 31, so as to facilitate the accommodation of the coolant 32 that forms a liquid after condensation.

[0035] In this embodiment, since the photovoltaic module is installed obliquely, when cooling treatment is carried out, there will be a situation where the heat in the middle of the photovoltaic module cannot be dissipated in time. After the coolant 32 absorbs the heat at the bottom of the photovoltaic laminate 2, it evaporates to the top (in the direction close to the condensation block 33). After the heat of the coolant 32 evaporated at the top is absorbed, the coolant 32 returns to the liquid state. The coolant 32 flows along the inner wall of the heat conduction part 31 away from the photovoltaic laminate 2 to the bottom of the heat conduction part 31, and then absorbs the heat at the bottom position of the photovoltaic laminate 2, but cannot absorb the heat at the middle position of the photovoltaic laminate 2. Therefore, the heat generated in the middle of the photovoltaic module cannot be dissipated in time. In the embodiment of the present application, a receiving groove 313 is formed between the baffle 312 and the inner wall of the receiving chamber 311, which can store a part of the coolant 32 that has condensed and returned to the liquid state. Therefore, the coolant 32 in the receiving groove 313 can absorb the heat generated in the middle of the photovoltaic laminate 2, and then the evaporated coolant 32 will evaporate into the condensation block 33, condense and then flow back again. Thus, the technical problem that the heat conduction part 31 cannot effectively take away the heat generated in the middle of the photovoltaic module after the photovoltaic module is installed obliquely can be solved, and the heat dissipation effect of the photovoltaic module is greatly improved.

[0036] In an alternative embodiment, the number of baffles 312 is several, and the several baffles 312 are evenly spaced and arranged on the inner wall of the receiving chamber 311; wherein, a receiving groove 313 is formed between each baffle 312 and the inner wall of the receiving chamber 311.

[0037] In this embodiment, a relatively large number of evenly spaced receiving grooves 313 can batch accommodate a relatively large amount of coolant 32, so that the heat generated at each position of the photovoltaic laminate 2 can be absorbed. Therefore, the cooling effect of the coolant 32 can cover the entire photovoltaic laminate 2, and the heat generated by the photovoltaic laminate 2 can be completely absorbed, and the heat dissipation effect on the photovoltaic laminate 2 is extremely good, thereby greatly improving the power generation efficiency of the photovoltaic module.

[0038] In an alternative embodiment, along the volatilization direction of the coolant 32, the angle between the baffle 312 and the inner wall of the receiving chamber 311 is an acute angle, that is, the acute angle is greater than 0° and less than 90°. The angle between the baffle 312 and the axial direction of the heat conduction part 31 can be 10°, 20°, 30°, 45°, 60°, 70° and 80°. In the embodiment of the present application, along the volatilization direction of the coolant 32, the angle between the baffle 312 and the inner wall of the receiving chamber 311 is 45°, which can better temporarily store a part of the coolant 32 flowing back, so as to facilitate the subsequent absorption of the heat generated at the middle position of the photovoltaic laminate 2 by the coolant 32.

[0039] In an alternative embodiment, a heat dissipation part is provided at one end of the heat conduction part 31. The heat dissipation part includes heat dissipation strips 314 having a hollow structure. The heat dissipation strips 314 are disposed inside the condensation block 33, and the hollow structure of the heat dissipation strips 314 communicates with the accommodation chamber 311. The heat dissipation strips 314 can be integrally formed on the heat conduction part 31, or can be disposed on the heat conduction part 31 by means of screws, bolts or insertion. Among them, the heat dissipation strips 314 are one of a linear strip, an arc strip, a bent strip and a spiral strip. The number of the heat dissipation strips 314 can be one or several. When the heat dissipation strips 314 are linear strips, the number of the heat dissipation strips 314 is several. More heat dissipation strips 314 can increase the contact area with the condensation block 33, so as to better condense and release heat of the coolant 32. When the heat dissipation strips 314 are arc strips, bent strips or spiral strips, the number of the heat dissipation strips 314 can be one or several. Shapes such as arc strips, bent strips or spiral strips can increase the contact area with the condensation block 33. It should be noted that the thermal conductivity of the condensation block 33 (heat storage material) is much lower than that of the heat conduction part 31. Therefore, in order to condensate the coolant 32 faster, it is necessary to optimize the distribution structure of the heat conduction part 31 in the condensation block 33 (heat storage material) to increase the contact area between the heat conduction part 31 and the condensation block 33 (heat storage material), which is beneficial to the rapid condensation of the coolant 32. Therefore, in the embodiment of the present application, the heat dissipation strips 314 are spiral strips, that is, the heat conduction part 31 is spirally distributed in the condensation block 33 (heat storage material), which is beneficial to the full contact between the heat conduction part 31 and the condensation block 33 (heat storage material), greatly increases the contact area between the heat conduction part 31 and the condensation block 33, enables the coolant 32 to condensate and release heat in time, thereby achieving a better heat dissipation effect and further improving the power generation efficiency of the photovoltaic module.

[0040] In some embodiments, there is a heat insulation layer on the side of the condensation block 33 facing the sun. The heat insulation layer is generally a film or a heat insulation film prepared from a reflective material, mainly to reduce the heat received by the condensation block 33 from non-cooling pipes and prevent receiving too much heat directly from the sun. And in order to enable the condensation block 33 to better release heat at night, heat insulation materials cannot be used on the side and bottom of the condensation block 33.

[0041] In an alternative embodiment, the shape of the heat conduction part 31 is one of an X shape, a Y shape, a U shape or an L shape. The shape of the heat conduction part 31 is generally not limited. Whether the shape is an X shape, a Y shape, a U shape or an L shape, it is to increase the contact area between the heat conduction part 31 and the photovoltaic laminate 2, so as to increase the heat absorption area of the heat generated by the photovoltaic laminate 2, thereby improving the heat dissipation effect on the photovoltaic laminate 2.

[0042] In a second aspect, an embodiment of the present application can provide a photovoltaic module, including: A photovoltaic frame 1, where the photovoltaic frame 1 is used to install a photovoltaic laminate 2; The heat dissipation component as described in any of the above embodiments; the heat dissipation component is located on the photovoltaic frame 1 and is used to dissipate heat from the photovoltaic laminate 2. The number of photovoltaic frames 1 is generally four and is used to install and fix the four sides of the photovoltaic laminate 2. Each photovoltaic frame 1 includes a top support plate 12, a bottom support plate 13, a cross plate 14 and a connecting plate 15. The top support plate 12, the bottom support plate 13 and the cross plate 14 are arranged parallel to each other. The connecting plate 15 is located on the same side of the top support plate 12, the bottom support plate 13 and the cross plate 14 and connects the three. The cross plate 14 and the bottom support plate 13 are also connected by a reinforcing plate 16 to improve the strength of the photovoltaic frame 1. In addition, an installation groove 17 is formed between the cross plate 14 and the top support plate 12, and the edge part of the photovoltaic laminate 2 is inserted into the installation groove 17, so as to complete the installation and fixation of the photovoltaic frame 1 on the photovoltaic laminate 2. The heat dissipation component is detachably arranged on the photovoltaic frame 1, which is convenient for subsequent maintenance and replacement.

[0043] In an alternative embodiment, an installation opening 11 is provided on the photovoltaic frame 1, and the heat conduction part 31 passes through the installation opening 11 and is arranged on the photovoltaic frame 1. The connecting plate 15 and the reinforcing plate 16 of the photovoltaic frame 1 are punched through to form the installation opening 11. One end of the heat conduction part 31 passes through the installation opening 11 of one photovoltaic frame 1 and is fixed to the photovoltaic frame 1 by a buckle, a screw or a bolt, and the other end passes through the installation opening 11 of another photovoltaic frame 1 and is fixed to the photovoltaic frame 1 by a buckle, a screw or a bolt, and these two photovoltaic frames 1 are symmetrically arranged.

[0044] And the heat conduction part 31 is arranged below the photovoltaic laminate 2. In order to reduce the shielding of the heat conduction part 31 from the battery cells, the heat conduction part 31 can be arranged as much as possible between the battery strings, so as to reduce the shielding of the battery cells to increase the power generation of the photovoltaic module. In the embodiment of the present application, the heat conduction part 31 is arranged in the middle of the battery cells, which can increase the heat dissipation effect on the battery cells. In addition, since the heat conduction part 31 is arranged below the photovoltaic laminate 2, it can play a role in supporting the photovoltaic laminate 2.

[0045] A reflective coating 315 is provided on the side of the heat conduction part 31 facing the photovoltaic laminate 2, and the reflective coating 315 is used to reflect sunlight onto the photovoltaic laminate 2. The emission coating can adopt a white coating. The reflective coating 315 can reflect the sunlight passing through the photovoltaic laminate 2 back onto the photovoltaic laminate 2, so as to improve the utilization rate of solar rays and the power of the photovoltaic module. Among them, the heat conduction part 31 and the photovoltaic laminate 2 are arranged parallel to each other.

[0046] In this embodiment, it should be noted that in snowy or freezing weather in high-latitude regions, since snow and ice accumulate on the front of the photovoltaic laminate 2, there will be a downward gravity on the photovoltaic laminate 2. Under the action of gravity, the photovoltaic laminate 2 will bend and generate a certain deflection. The long-term existence of the deflection will weaken the installation strength between the photovoltaic frame 1 and the photovoltaic laminate 2, thereby reducing the mechanical strength of the photovoltaic module and posing a hidden danger to the long-term operation of the photovoltaic module. In the embodiment of the present application, by providing the heat conduction part 31, on the one hand, the heat conduction part 31 effectively improves the load capacity of the photovoltaic module by combining with the photovoltaic frame 1, especially in snowy or freezing weather, it can support the photovoltaic laminate 2 of the photovoltaic module; on the other hand, the heat conduction part 31 can cool down the photovoltaic laminate 2, thereby improving the power generation efficiency of the photovoltaic module. Therefore, the heat conduction part 31 solves the problems of cooling on sunny days and preventing the central settlement of the photovoltaic laminate 2 of the photovoltaic module in snowy and icy weather.

[0047] In an alternative embodiment, the number of the heat conduction parts 31 is several, and the several heat conduction parts 31 are arranged in an array under the photovoltaic laminate 2; wherein, a condensing substance is arranged at one end of each heat conduction part 31. A larger number of heat conduction parts 31 can improve the heat dissipation effect of the photovoltaic module by increasing the quantity, thereby improving the power generation efficiency of the photovoltaic module. And the several heat conduction parts 31 are arranged in an array under the photovoltaic laminate 2, which can enable the heat conduction parts 31 to play a full role in cooling and dissipating heat at various positions of the photovoltaic module, further improving the power generation efficiency of the photovoltaic module.

[0048] Thirdly, the embodiment of the present application can provide a photovoltaic system, including at least one photovoltaic module as described in any one of the above embodiments. The photovoltaic system also has the advantages possessed by the above photovoltaic module, which will not be elaborated here. The application fields of the above photovoltaic system are extensive, not limited to photovoltaic power stations, such as ground power stations, rooftop power stations and water surface power stations, but also include various devices and apparatuses using solar energy for power generation, such as user solar power supplies, solar street lamps, solar cars and solar buildings. Of course, it can be understood that the application scenarios of the photovoltaic system are not limited to this, that is to say, the photovoltaic system can be applied in all fields that need to use solar energy for power generation. Taking the photovoltaic power generation system network as an example, the photovoltaic system can include a photovoltaic array, a busbar box and an inverter. The photovoltaic array can be an array combination of multiple photovoltaic modules. For example, multiple photovoltaic modules can form multiple photovoltaic arrays. The photovoltaic arrays are connected to the busbar box, and the busbar box can collect the current generated by the photovoltaic arrays. After the collected current flows through the inverter and is converted into alternating current required by the commercial power grid, it is connected to the commercial power grid to realize solar power supply.

[0049] The following specific embodiments further illustrate the present application in detail, but should not be construed as a limitation of the present application. Without departing from the spirit and essence of the present application, any modification or replacement of the methods, steps or conditions of the present application shall fall within the scope of the present application.

[0050]

Embodiment 1

[0051]

Comparative Example 1

[0052] The photovoltaic modules of Embodiment 1 and Comparative Example 1 are respectively placed on the distributed roofs in Hainan, and the power generation amounts of the photovoltaic modules of Embodiment 1 and Comparative Example 1 are tested for 29 days. The test results are shown in Table 1.

[0053] Table 1 Power Generation Amounts of Embodiment 1 and Comparative Example 1

[0054] As can be seen from Table 1, the power generation of Example 1 in 29 days is significantly higher than that of Comparative Example 1 in 29 days, and the power generation of Example 1 increases by 9.62 degrees compared with that of Comparative Example 1. Therefore, the heat dissipation component of the present application can effectively cool the photovoltaic module, thereby effectively improving the power generation efficiency of the photovoltaic module.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0056] For the sake of convenience of description, the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "on other devices or structures" will be positioned as "below other devices or structures" or "beneath other devices or structures" afterwards. Thus, the exemplary term "above..." can include both "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the relative spatial descriptions used herein are made.

[0057] Unless otherwise clearly specified and defined, the terms "install", "connect", "couple", "fix" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0058] Unless otherwise expressly specified or limited, the first feature being “on” or “under” the second feature may include direct contact between the first and second features, or may include contact between the first and second features not being direct but through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being “under”, “below” and “beneath” the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is less than that of the second feature.

[0059] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary, not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0060] It should also be noted that the “one embodiment”, “another embodiment”, “embodiment” and the like mentioned in this specification refer to that the specific features, structures or characteristics described in connection with the embodiment are included in at least one embodiment generally described in the present application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any embodiment, it is intended that the implementation of such feature, structure or characteristic in connection with other embodiments also falls within the scope of the present application.

[0061] In the above embodiments, the descriptions of the various embodiments have their respective emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0062] It should also be noted that the above are only the preferred embodiments of the present application, and do not limit the scope of patent protection of the present application accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the scope of patent protection of the present application.

Claims

1. A heat dissipation component, characterized in that, Comprising: A cooling component (3), the cooling component (3) includes a heat conducting part (31) and is configured with a condensing substance; The heat conducting part (31) can be arranged on a photovoltaic frame (1) for installing a photovoltaic laminate (2) to absorb heat generated by the photovoltaic laminate (2); the condensing substance is arranged on the heat conducting part (31) for heat exchange with the heat conducting part (31).

2. The heat dissipation component according to claim 1, wherein The condensing substance includes a coolant (32) and a condensing block (33); the heat conducting part (31) is provided with a receiving chamber (311), and the coolant (32) can be arranged in the receiving chamber (311); the condensing block (33) is arranged at one end of the heat conducting part (31); the coolant (32) absorbs the heat of the photovoltaic laminate (2) to form steam, and the steam condenses into a liquid after heat interaction with the condensing block (33).

3. The heat dissipation component according to claim 2, wherein Along the volatilization direction of the coolant (32), a baffle (312) is arranged on the inner wall of the receiving chamber (311), and a receiving groove (313) is formed between the baffle (312) and the inner wall of the receiving chamber (311), and the receiving groove (313) is used for receiving the condensed liquid.

4. The heat dissipation component according to claim 3, wherein The number of the baffles (312) is several, and several of the baffles (312) are evenly spaced and arranged on the inner wall of the receiving chamber (311); Wherein, each of the baffles (312) forms a receiving groove (313) with the inner wall of the receiving chamber (311).

5. The heat dissipation component according to claim 3, wherein Along the volatilization direction of the coolant (32), the included angle between the baffle (312) and the inner wall of the receiving chamber (311) is an acute angle.

6. The heat dissipation component according to claim 2, wherein One end of the heat conducting part (31) is provided with a heat dissipation part, the heat dissipation part includes a heat dissipation strip (314) with a hollow structure, the heat dissipation strip (314) is arranged inside the condensing block (33), and the hollow structure of the heat dissipation strip (314) is communicated with the receiving chamber (311); Wherein, the heat dissipation strip (314) is one of a linear strip, an arc strip, a curved strip and a spiral strip.

7. The heat dissipation component according to any one of claims 1 to 6, wherein The shape of the heat conducting part (31) is one of an X shape, a Y shape, a U shape or an L shape.

8. A photovoltaic module, characterized in that, Comprising: A photovoltaic frame (1), the photovoltaic frame (1) is used for installing a photovoltaic laminate (2); The heat dissipation component according to any one of claims 1 to 7; the heat dissipation component is located on the photovoltaic frame (1) for dissipating heat from the photovoltaic laminate (2).

9. The photovoltaic component according to claim 8, wherein An installation opening (11) is provided on the photovoltaic frame (1), the heat conduction part (31) of the heat dissipation component passes through the installation opening (11) and is arranged on the photovoltaic frame (1), and the heat conduction part (31) is arranged below the photovoltaic laminate (2); a reflective coating (315) is arranged on one side of the heat conduction part (31) facing the photovoltaic laminate (2), and the reflective coating (315) is used for reflecting sunlight onto the photovoltaic laminate (2); Wherein, the heat conduction part (31) and the photovoltaic laminate (2) are arranged parallel to each other.

10. The photovoltaic module according to claim 8 or 9, wherein, The number of the heat conduction parts (31) is several, and several heat conduction parts (31) are arranged in an array below the photovoltaic laminate (2).

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