Photovoltaic heat dissipation piece and photovoltaic module
By designing the heat dissipation parts for photovoltaics, using contacts, transfers and releases to form a thermally conductive space, and installing heat conductive parts therein, the problem of reduced efficiency of photovoltaic modules due to rising temperatures is solved, and effective heat dissipation and cooling and prolonging service life are achieved.
Patent Information
- Application Number
- CN202423077766.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-12-13
AI Technical Summary
During operation, photovoltaic modules reduce efficiency due to rising temperatures and have an adverse impact on their service life.
A heat dissipation member for photovoltaic is designed, including a contact piece, a transfer piece and a release piece, forming a closed thermal conduction space, and a thermal conduction member, including thermally conductive microcapsules and thermally conductive glue, is provided in the thermally conductive space to improve the heat transfer efficiency.
The heat of the photovoltaic panel is effectively transferred to the external environment through multiple heat propagation paths, reducing the impact of high temperature on the power output of the photovoltaic panel, and improving the service life of the photovoltaic panel.
Smart Images
Figure CN222803339U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic heat sink and a photovoltaic assembly. Background Art
[0002] Photovoltaics is a new form of power generation that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. During the operation of photovoltaic modules, the temperature of photovoltaic modules increases with the increase of sunlight radiation intensity and ambient temperature. However, excessively high operating temperature will reduce the efficiency of photovoltaic modules. For every 1°C increase in photovoltaic module temperature, its power output will decrease by about 0.4% to 0.5%, which will also have an adverse effect on the service life of photovoltaic modules. Utility Model Content
[0003] In view of the above existing situation, the present invention provides a photovoltaic heat sink and a photovoltaic module, which can improve the adverse effects of excessive temperature on the photovoltaic module.
[0004] In a first aspect, the utility model provides a photovoltaic heat sink, comprising: a contact member, the contact member is used to connect to a photovoltaic panel; a transmission member, the transmission member passes through in a first direction, the first direction is perpendicular to the photovoltaic panel, the transmission member is connected to a side of the contact member facing away from the photovoltaic panel; a release member, the release member is connected to a side of the transmission member facing away from the contact member; wherein, in the first direction, the contact member and the release member are respectively enclosed in the transmission member to form a closed heat-conducting space, and a heat-conducting member is arranged in the heat-conducting space.
[0005] Optionally, the heat-conducting member includes heat-conducting microcapsules, and the heat-conducting microcapsules are filled with phase change materials.
[0006] Optionally, in the first direction, two sides of the thermally conductive microcapsule are respectively against the contact member and the release member.
[0007] Optionally, on the orthographic projection of the plane where the photovoltaic panel is located, the thermally conductive microcapsule is located in the middle of the thermally conductive space.
[0008] Optionally, the photovoltaic heat sink further includes a thermally conductive adhesive, and the thermally conductive microcapsules are bonded to one of the contact member, the transmission member, and the release member through the thermally conductive adhesive.
[0009] Optionally, the phase change material includes one of microcrystalline wax, polyethylene glycol, a eutectic mixture of stearic acid and palmitic acid, a eutectic mixture of sodium nitrate and sodium sulfate, and a eutectic mixture of potassium nitrate and sodium sulfate.
[0010] Optionally, the material of the thermally conductive microcapsules includes methyl methacrylate or polyvinyl alcohol.
[0011] Optionally, the photovoltaic heat sink further includes a plurality of heat conductive sheets, wherein the heat conductive sheets are connected between the contact member and the transmission member, and the heat conductive sheets are connected between the contact member and the transmission member.
[0012] Optionally, the material of the heat conductive sheet is one of silica gel, graphite, metal-based material and ceramic-based material.
[0013] Optionally, the photovoltaic heat sink also includes thermally conductive adhesive; the contact member and the thermally conductive sheet are bonded to each other via the thermally conductive adhesive, the thermally conductive sheet and the transmission member are bonded to each other via the thermally conductive adhesive, and the thermally conductive sheet and the release member are bonded to each other via the thermally conductive adhesive.
[0014] Optionally, the thermally conductive adhesive includes one of epoxy resin thermally conductive adhesive, polyurethane thermally conductive adhesive and silicone thermally conductive adhesive.
[0015] Optionally, the heat conductive element includes one of metal particles, graphite particles and carbon nanotubes.
[0016] Optionally, there are multiple transmission members, and two adjacent transmission members are arranged at intervals.
[0017] In a second aspect, the utility model provides a photovoltaic assembly, which includes the photovoltaic heat sink as described above and a photovoltaic panel, wherein the photovoltaic panel is bonded to a side of the contact member facing away from the transmission member.
[0018] The photovoltaic heat sink involved in the utility model includes a contact member, a transfer member and a release member, wherein the contact member is used to connect with the photovoltaic panel, and in the first direction, the contact member and the release member are respectively enclosed in the transfer member to form a closed heat-conducting space, and a heat-conducting member is arranged in the heat-conducting space. Specifically, the first direction is the heat transfer direction of the photovoltaic panel. Accordingly, the heat of the photovoltaic panel can be transferred in sequence through the contact member, the transfer member and the release member, and the heat is transferred to the external environment through the release member. In addition, a heat-conducting member is arranged in the heat-conducting space, and the heat of the photovoltaic panel can also be transferred in sequence through the contact member, the heat-conducting member in the heat-conducting space and the release member. As a result, multiple heat propagation paths can effectively transfer the heat of the photovoltaic panel to the external environment, thereby achieving effective heat dissipation and cooling, reducing the influence of high temperature on the power output of the photovoltaic panel, and also improving the service life of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.
[0020] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.
[0021] Figure 1 It is a schematic diagram showing the overall structure of the photovoltaic assembly involved in the present application.
[0022] Figure 2 Schematic diagram showing another overall structure of the photovoltaic module involved in the present application.
[0023] Figure 3 is an exploded view showing the photovoltaic heat sink involved in the present application.
[0024] Figure 4 It shows Figure 3 A magnified schematic diagram of center A.
[0025] Figure numerals: 100, photovoltaic panel; 1, contact member; 2, transmission member; 3, release member; 4, heat conduction space; 5, heat conduction member; 51, heat conduction microcapsule; 6, heat conduction sheet. DETAILED DESCRIPTION
[0026] Hereinafter, with reference to the accompanying drawings, the preferred embodiments of the present application are described in detail. In the following description, the same symbols are assigned to the same components, and repeated descriptions are omitted. In addition, the accompanying drawings are only schematic diagrams, and the ratio of the sizes of the components to each other or the shapes of the components may be different from the actual ones. It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0027] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.
[0028] Photovoltaics is a new form of power generation that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. During the operation of photovoltaic modules, the temperature of photovoltaic modules increases with the increase of sunlight radiation intensity and ambient temperature. However, excessively high operating temperature will reduce the efficiency of photovoltaic modules. For every 1°C increase in the temperature of photovoltaic modules, its power output will decrease by about 0.4% to 0.5%, and it will also have an adverse effect on the service life of photovoltaic modules. Therefore, it is urgent to design a photovoltaic heat sink to improve the adverse effects of excessive temperature on photovoltaic modules.
[0029] To this end, the utility model proposes a photovoltaic heat sink, which includes a contact member, a transfer member and a release member, wherein the contact member is used to connect with the photovoltaic panel, and in the first direction, the contact member and the release member are respectively enclosed in the transfer member to form a closed heat-conducting space, and a heat-conducting member is provided in the heat-conducting space. Specifically, the first direction is the heat transfer direction of the photovoltaic panel. Accordingly, the heat of the photovoltaic panel can be transferred in sequence through the contact member, the transfer member and the release member, and the heat is transferred to the external environment through the release member. In addition, a heat-conducting member is provided in the heat-conducting space, and the heat of the photovoltaic panel can also be transferred in sequence through the contact member, the heat-conducting member in the heat-conducting space and the release member. As a result, multiple heat propagation paths can effectively transfer the heat of the photovoltaic panel to the external environment, thereby achieving effective heat dissipation and cooling, reducing the impact of high temperature on the power output of the photovoltaic panel, and also improving the service life of the photovoltaic panel.
[0030] The specific scheme of the embodiment of the present application is described in detail below:
[0031] Reference Figures 1 to 3 The present application provides a photovoltaic heat sink, which includes a contact member 1, a transmission member 2 and a release member 3, wherein the contact member 1 is used to connect with the photovoltaic panel 100; the transmission member 2 passes through in a first direction, the first direction is perpendicular to the photovoltaic panel 100, and the transmission member 2 is connected to a side of the contact member 1 that is away from the photovoltaic panel 100; the release member 3 is connected to a side of the transmission member 2 that is away from the contact member 1; wherein, in the first direction, the contact member 1 and the release member 3 are respectively closed to the transmission member 2 to form a closed heat-conducting space 4, and a heat-conducting member 5 is provided in the heat-conducting space 4.
[0032] According to the above structure, the heat of the photovoltaic panel 100 can be transferred through the contact member 1, the transfer member 2 and the release member 3 in sequence, and the heat is transferred to the external environment through the release member 3. In addition, a heat conductive member 5 is provided in the heat conductive space 4, and the heat of the photovoltaic panel 100 can also be transferred through the contact member 1, the heat conductive member 5 in the heat conductive space 4 and the release member 3 in sequence. Thus, multiple heat transfer paths can effectively transfer the heat of the photovoltaic panel 100 to the external environment, thereby achieving effective heat dissipation and cooling, reducing the impact of high temperature on the power output of the photovoltaic panel 100, and also improving the service life of the photovoltaic panel 100.
[0033] Reference Figure 1 It can be understood that the first direction is the heat transfer direction of the photovoltaic panel 100. Specifically, it can also be understood as the direction from the photovoltaic panel 100 toward the release member 3, that is, the arrangement direction of the contact member 1, the transfer member 2 and the release member 3.
[0034] Specifically, in some examples, the contact member 1 and the release member 3 can be made of aluminum. In another embodiment, the transmission member 2 can also be made of aluminum with the thermal conductivity. Aluminum is an excellent thermal conductive material with high thermal conductivity, and aluminum is a light metal, which can reduce the overall weight of the photovoltaic heat sink.
[0035] Specifically, in some examples, the contact member 1 and the transmission member 2, and the transmission member 2 and the release member 3 are preferably connected and bonded using a chemical bonding process, such as using a thermally conductive adhesive. By using a chemical bonding process, it is possible to ensure a tight fit of the connection parts and improve the heat transfer efficiency between the contact surfaces.
[0036] Reference Figure 3 and Figure 4 In some embodiments, the heat conducting member 5 includes a heat conducting microcapsule 51, and the heat conducting microcapsule 51 is filled with a phase change material. Specifically, the phase change material can undergo a phase change when the temperature changes. When the phase change material changes from a solid state to a liquid state, it absorbs heat to dissipate heat and cool the photovoltaic panel. When the temperature of the photovoltaic panel 100 increases, the amount of heat transferred to the phase change material also increases. At this time, the phase change material can absorb and conduct heat, thereby improving the heat dissipation efficiency of the photovoltaic panel 100. On the contrary, heat is released when changing from a liquid state to a solid state, so that the temperature of the photovoltaic panel is adjusted when the temperature is too low, so that the photovoltaic panel can be in a better working environment.
[0037] In some implementations, in the first direction, the two sides of the thermally conductive microcapsule 51 are respectively against the contact member 1 and the release member 3. Specifically, it can also be understood that in the first direction, the height of the thermally conductive microcapsule 51 is consistent with the height of the transfer member 2. The two sides of the thermally conductive microcapsule 51 are respectively against the contact member 1 and the release member 3, and the thermally conductive microcapsule 51 can transfer heat from the contact member 1 to the release member 3 by direct contact, so that the heat transfer speed is faster and the heat dissipation and cooling efficiency is higher.
[0038] In some examples, the heat-conducting microcapsules 51 may also only contact the contact member 1. Thus, the heat of the contact member 1 can be directly transferred to the heat-conducting microcapsules 51, and then the heat of the heat-conducting microcapsules 51 is heat-exchanged with the air in the heat-conducting space 4, and finally part of the heat in the heat-conducting space 4 is transferred to the release member 3, and the other part is transferred from the transfer member 2 to the release member 3, and finally the release member 3 is transferred to the external environment.
[0039] In some embodiments, on the orthographic projection of the plane where the photovoltaic panel 100 is located, the thermally conductive microcapsule 51 is located in the middle of the thermally conductive space 4. As a result, on the peripheral side of the thermally conductive microcapsule 51, the heat in the thermally conductive space 4 can be uniformly transferred to the thermally conductive microcapsule 51, thereby improving the uniformity and efficiency of heat transfer. Specifically, there is a gap between the thermally conductive microcapsule 51 and the inner wall of the transfer member 2. The existence of the gap allows the heat to be more evenly distributed on the surface of the thermally conductive microcapsule 51, thereby increasing the contact area of heat transfer and improving the rate and efficiency of heat transfer.
[0040] In some embodiments, the photovoltaic heat sink further includes a thermally conductive adhesive, and the thermally conductive microcapsule 51 is bonded to one of the contact member 1, the transmission member 2, and the release member 3 through the thermally conductive adhesive. Thus, the provision of the thermally conductive adhesive enables the thermally conductive microcapsule 51 to be fixed in the thermally conductive space 4. For example, the thermally conductive microcapsule 51 can be bonded to the contact member 1 through the thermally conductive adhesive, so that the thermally conductive microcapsule 51 is fixed in the middle of the thermally conductive space 4.
[0041] In some embodiments, the phase change material includes one of microcrystalline wax, polyethylene glycol, a eutectic mixture of stearic acid and palmitic acid, a eutectic mixture of sodium nitrate and sodium sulfate, and a eutectic mixture of potassium nitrate and sodium sulfate. Such phase change materials can have high thermal conductivity and good stability, and the stability is manifested in that the performance remains stable after multiple phase change cycles and is not easily affected by oxidation, decomposition or deterioration.
[0042] In some embodiments, the material of the thermally conductive microcapsule 51 includes methyl methacrylate or polyvinyl alcohol. The shell of the thermally conductive microcapsule 51 can be made of methyl methacrylate, which has high thermal conductivity and thermal stability, and can effectively conduct heat, thereby also improving the thermal conduction efficiency of the thermally conductive microcapsule 51. Secondly, methyl methacrylate has good sealing properties, and can effectively encapsulate the phase change material to prevent leakage and the influence of the external environment. The shell of the thermally conductive microcapsule 51 can also be made of polyvinyl alcohol, which also has high thermal conductivity and good sealing properties.
[0043] Reference Figure 4 In some implementations, the photovoltaic heat sink further includes a plurality of heat conductive sheets 6, wherein the heat conductive sheets 6 are connected between the contact member 1 and the transmission member 2, and the heat conductive sheets 6 are connected between the contact member 1 and the transmission member 2. Thus, the provision of the heat conductive sheets 6 can improve the efficiency of heat transfer.
[0044] In some examples, the material of the thermal conductive sheet 6 can be one of silicone, graphite, metal-based materials and ceramic-based materials. Among them, silicone, graphite, metal-based materials and ceramic-based materials all have excellent thermal conductivity, so they can be better thermal conductive materials. In other examples, the thermal conductive sheet 6 can also be one of silicone rubber thermal conductive sheet 6, thermal conductive silicone pad and thermal conductive tape, which can also play an effective role in heat conduction. In another example, the thermal conductive sheet 6 can also be a thermal conductive coating formed after coating a thermal conductive material, such as a graphite-based thermal conductive coating, a metal oxide coating, a nano thermal conductive coating, etc., all of which can have high thermal conductivity.
[0045] In some embodiments, the photovoltaic heat sink further includes thermally conductive adhesive; the contact member 1 and the thermally conductive sheet 6 are bonded by thermally conductive adhesive, the thermally conductive sheet 6 and the transmission member 2 are bonded by thermally conductive adhesive, and the thermally conductive sheet 6 and the release member 3 are bonded by thermally conductive adhesive. Specifically, in this embodiment, the heat transfer path of the photovoltaic panel 100 is "contact member 1-thermal conductive adhesive-thermal conductive sheet 6-thermal conductive adhesive-transmission member 2-thermal conductive adhesive-thermal conductive sheet 6-thermal conductive adhesive-release member 3"
[0046] In some embodiments, the thermally conductive adhesive includes one of epoxy resin thermally conductive adhesive, polyurethane thermally conductive adhesive and silicone thermally conductive adhesive. Therefore, this type of thermally conductive adhesive has excellent thermal conductivity and can play a role in transferring heat. In addition, this type of thermally conductive adhesive has outstanding bonding properties and can firmly connect two components, so that the heat sink can have higher structural stability.
[0047] In some examples, the heat conducting member 5 includes one of metal particles, graphite particles and carbon nanotubes. Metal particles, graphite particles and carbon nanotubes are all solid particles, and all have relatively high local thermal conductivity, and do not undergo morphological changes like phase change materials, so they can be directly filled in the heat conducting space 4 as the heat conducting member 5, and do not need to be encapsulated by heat conducting microcapsules 51.
[0048] In other examples, the heat conducting member 5 may also be a heat conducting medium in liquid form. Thus, the heat conducting medium in liquid form has strong fluidity and can fill the entire heat conducting space 4 to form a continuous heat conducting path, and has a high heat transfer efficiency. Specifically, heat conducting silicone oil, liquid gallium alloy, etc. may be used, or a solid-liquid mixed nanofluid, such as a mixture of water and aluminum oxide nanoparticles, may be used. Such liquid heat conducting media have high thermal conductivity.
[0049] It is understandable that the use of liquid heat-conducting medium requires that the heat-conducting space 4 is completely sealed. Although the heat-conducting glue also has a certain sealing performance, in order to ensure the sealing of the heat-conducting space 4, a sealant can be added at the connection edge of the transmission member 2 to further improve the sealing performance.
[0050] In some embodiments, there are multiple transmission members 2, and two adjacent transmission members 2 are spaced apart. Specifically, the sizes of the transmission member 2 and the release member 3 are set according to the size of the photovoltaic panel 100, and multiple transmission members 2 can be set according to the sizes of the transmission member 2 and the release member 3. The spacing between two adjacent transmission members 2 can also provide heat dissipation space between the transmission members 2.
[0051] Reference Figure 3 In some examples, the cross section of the transmission member 2 may be a hexagonal structure, and a plurality of transmission members 2 with a hexagonal structure may be arranged to form a honeycomb structure. Thus, the transmission member 2 with a hexagonal structure may have higher strength and rigidity, thereby being able to withstand greater pressure and load and provide good mechanical support.
[0052] The present application also provides a photovoltaic assembly, which includes the photovoltaic heat sink as above and a photovoltaic panel 100, the photovoltaic panel 100 being bonded to the side of the contact member 1 away from the transmission member 2. Specifically, the photovoltaic panel 100 can be bonded to the side of the contact member 1 away from the transmission member 2 using a thermally conductive adhesive.
[0053] In summary, the heat of the photovoltaic panel 100 can be transferred through the contact member 1, the transfer member 2 and the release member 3 in sequence, and the heat is transferred to the external environment through the release member 3. In addition, a heat conductive member 5 is provided in the heat conductive space 4, and the heat of the photovoltaic panel 100 can also be transferred through the contact member 1, the heat conductive member 5 in the heat conductive space 4 and the release member 3 in sequence. Thus, multiple heat transfer paths can effectively transfer the heat of the photovoltaic panel 100 to the external environment, thereby achieving effective heat dissipation and cooling, reducing the impact of high temperature on the power output of the photovoltaic panel 100, and also improving the service life of the photovoltaic panel 100.
[0054] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0055] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0056] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.
[0057] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.
[0058] Although the utility model is specifically described above in conjunction with the accompanying drawings and embodiments, it is to be understood that the above description does not limit the utility model in any form. Those skilled in the art can modify and change the utility model as needed without departing from the essential spirit and scope of the utility model, and these modifications and changes all fall within the scope of the utility model.
Claims
1. A photovoltaic heat sink, comprising a contact member, a transmission member and a release member, wherein the contact member is used to connect with a photovoltaic panel, and is characterized in that: The transmission member penetrates in a first direction, the first direction is perpendicular to the photovoltaic panel, and the transmission member is connected to a side of the contact member that is away from the photovoltaic panel; The release member is connected to a side of the transmission member facing away from the contact member; Wherein, in the first direction, the contact member and the release member are respectively closed to the transmission member to form a closed heat conduction space, and a heat conduction member is arranged in the heat conduction space.
2. The photovoltaic heat sink according to claim 1, characterized in that: The heat-conducting member includes heat-conducting microcapsules, and the heat-conducting microcapsules are filled with phase change materials.
3. The photovoltaic heat sink according to claim 2, characterized in that: In the first direction, two sides of the thermally conductive microcapsule are respectively against the contact member and the release member.
4. The photovoltaic heat sink according to claim 2, characterized in that: On the orthographic projection of the plane where the photovoltaic panel is located, the heat-conducting microcapsule is located in the middle of the heat-conducting space.
5. The photovoltaic heat sink according to claim 2, characterized in that: The photovoltaic heat sink further comprises a thermally conductive adhesive, and the thermally conductive microcapsules are bonded to one of the contact member, the transmission member and the release member through the thermally conductive adhesive.
6. The photovoltaic heat sink according to claim 2, characterized in that: The phase change material includes one of microcrystalline wax and polyethylene glycol.
7. The photovoltaic heat sink according to claim 2, characterized in that: The material of the thermally conductive microcapsules includes methyl methacrylate or polyvinyl alcohol.
8. The photovoltaic heat sink according to any one of claims 1 to 7, characterized in that: The photovoltaic heat sink further includes a plurality of heat conductive sheets, and the heat conductive sheets are connected between the contact member and the transmission member.
9. The photovoltaic heat sink according to claim 8, characterized in that: The material of the heat conducting sheet is one of silica gel, graphite, metal-based material and ceramic-based material.
10. The photovoltaic heat sink according to claim 8, characterized in that: The photovoltaic heat sink also includes a thermally conductive adhesive; The contact member and the heat conducting sheet are bonded together by the heat conducting adhesive, the heat conducting sheet and the transmission member are bonded together by the heat conducting adhesive, and the heat conducting sheet and the release member are bonded together by the heat conducting adhesive.
11. The photovoltaic heat sink according to claim 10, characterized in that: The thermal conductive adhesive includes one of epoxy resin thermal conductive adhesive, polyurethane thermal conductive adhesive and silicone thermal conductive adhesive.
12. The photovoltaic heat sink according to any one of claims 1 to 7, characterized in that: The heat conducting member comprises one of metal particles, graphite particles and carbon nanotubes.
13. The photovoltaic heat sink according to any one of claims 1 to 7, characterized in that: There are multiple transmission members, and two adjacent transmission members are spaced apart from each other.
14. A photovoltaic module, characterized in that: The photovoltaic assembly comprises a photovoltaic heat sink as described in any one of claims 1 to 13 and a photovoltaic panel, wherein the photovoltaic panel is bonded to a side of the contact member facing away from the transmission member.