Heat dissipation device and photovoltaic system

Abstract

The embodiment of the utility model discloses a heat dissipation device and a photovoltaic system, and relates to the technical field of photovoltaic equipment, the heat dissipation device comprises an air outlet shell, cooling fins and a flow guide boss, an air flow space is arranged in the air outlet shell, the air outlet shell is provided with an air inlet and an air outlet which are communicated with the air flow space, and the air inlet and the air outlet are communicated with the air flow space. The airflow space is provided with a first inner wall and a second inner wall which are opposite; the cooling fins are arranged in the airflow space and connected to the first inner wall. The flow guide boss is arranged in the airflow space and connected to the second inner wall, the flow guide boss and the first inner wall are spaced to form a compression air channel, and the flow guide boss and the cooling fins are sequentially arranged in the air inlet direction. According to the technical scheme provided by the embodiment of the invention, the heat dissipation effect of the photovoltaic module is better improved by using the heat dissipation device, and the stable operation of a photovoltaic system is ensured.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of photovoltaic equipment, and in particular to a heat dissipation device and a photovoltaic system. Background Art

[0002] In related technologies, photovoltaic systems can be installed and constructed in environments such as building roofs, which is conducive to better realizing the integrated design of photovoltaic buildings and achieving effective and reliable application of photovoltaic systems.

[0003] However, when a photovoltaic system is installed on a building roof, the back of the photovoltaic modules of the photovoltaic system is mostly set close to the roof of the building. The gap between the photovoltaic modules and the building roof is small, resulting in a small amount of air circulating between the photovoltaic modules and the building roof, which cannot dissipate heat for the photovoltaic modules well, resulting in a high operating temperature of the photovoltaic modules, reducing the power generation efficiency and practicality of the photovoltaic system. Utility Model Content

[0004] Multiple embodiments in this application propose a heat dissipation device and a photovoltaic system, aiming to utilize the heat dissipation device to better improve the heat dissipation effect of the photovoltaic components, ensure the stable operation of the photovoltaic system, and further improve the practicality and reliability of the heat dissipation device.

[0005] An embodiment of the present application proposes a heat dissipation device including an air outlet shell, a heat sink and a guide boss, wherein an air flow space is provided in the air outlet shell, and the air outlet shell is provided with an air inlet and an air outlet connected to the air flow space, and the air flow space has a first inner wall and a second inner wall relative to each other; the heat sink is provided in the air flow space and is connected to the first inner wall; the guide boss is provided in the air flow space and is connected to the second inner wall, the guide boss and the first inner wall are spaced apart to form a compressed air duct, and the guide boss and the heat sink are arranged in sequence along the air inlet direction.

[0006] In one embodiment, a ventilation port is provided on one side of the air outlet housing, and a connecting hole is provided on the flow guide boss, and the connecting hole is connected to the ventilation port correspondingly.

[0007] In one embodiment, the guide boss includes a first boss, a second boss and a water-blocking enclosure, and the first boss and the second boss are spaced apart along the air inlet direction; the water-blocking enclosure is arranged on opposite sides of the first boss and the second boss, and connects the first boss and the second boss, and the water-blocking enclosure and the first boss and the second boss enclose the connecting hole.

[0008] In one embodiment, a distance between the first boss and the first inner wall is greater than a distance between the second boss and the first inner wall.

[0009] In one embodiment, the air outlet housing is provided with a folded plate at the edge of the ventilation port, the folded plate is bent toward the airflow space, the folded plate is formed into the first boss, and the size of the communicating hole is smaller than the size of the ventilation port.

[0010] In one embodiment, the heat dissipation device is provided with structural adhesive, the structural adhesive is attached to one side of the air outlet housing and is arranged around the air exchange port, and the structural adhesive is used to bond to the building roof.

[0011] In one embodiment, the diversion boss has a diversion slope, and the diversion slope is arranged to be inclined or arc-shaped relative to the second inner wall.

[0012] In one embodiment, the air outlet housing has an upper surface, and the heat dissipation device is provided with a heat conductive material. The heat conductive material is attached to the upper surface of the air outlet housing and is used to abut against the photovoltaic assembly.

[0013] In one embodiment, the heat dissipation device further includes a fixing member, which is connected to the air outlet housing and is used to connect to a photovoltaic support or a building roof.

[0014] An embodiment of the present application also proposes a photovoltaic system, which includes a photovoltaic bracket, a photovoltaic component and a heat dissipation device, the heat dissipation device is the heat dissipation device described above, the photovoltaic component is installed on the photovoltaic bracket, and the heat dissipation device is connected to the back of the photovoltaic component.

[0015] In the multiple embodiments provided by the present application, by sequentially arranging guide bosses and heat sinks in the air flow space of the air outlet shell along the air inlet direction, the heat sink can be used to stably conduct the heat of the photovoltaic module on the first inner wall, and the guide boss is used to reduce the channel cross-sectional area of the air flow space to form a compressed air duct, so that the low-temperature airflow in the external environment can enter the air flow space from the air inlet, and the wind speed of the incoming air flow can be stably increased by the compression effect of the compressed air duct, so that the incoming air flow can quickly flow through the heat sink to take away the heat on the heat sink, thereby achieving a better heat dissipation effect of the heat dissipation device on the photovoltaic module, and further improving the practicality and reliability of the heat dissipation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application 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 application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the internal structure of an embodiment of the heat dissipation device provided in this application;

[0018] Figure 2 A cross-sectional view of an embodiment of a heat dissipation device provided by the present application;

[0019] Figure 3 for Figure 2 A schematic diagram of airflow direction of a heat dissipation device according to an embodiment of the present invention;

[0020] Figure 4 A cross-sectional view of another embodiment of the heat dissipation device provided by the present application;

[0021] Figure 5 for Figure 4 Schematic diagram of air flow direction of an embodiment of a heat dissipation device.

[0022] Description of Figure Numbers:

[0023] 100. Heat dissipation device; 10. Air outlet housing; 11. Air flow space; 111. Compressed air duct; 13. Air inlet; 15. Air outlet; 17. Ventilation port; 30. Heat sink; 50. Guide boss; 50a. Connecting hole; 50b. Guide slope; 51. First boss; 53. Second boss; 55. Waterproof enclosure; 200. Photovoltaic module; 400. Building roof. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in multiple embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0025] It should be noted that if multiple embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in multiple embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] In related technologies, photovoltaic systems can be installed and constructed in environments such as building roofs, which facilitates better implementation of photovoltaic building integrated design and the effective and reliable application of photovoltaic systems. However, when a photovoltaic system is installed on a building roof, the backs of the photovoltaic modules of the photovoltaic system are often placed close to the building roof. The gap between the photovoltaic modules and the building roof is small, resulting in a small amount of airflow between the photovoltaic modules and the building roof, which is unable to effectively dissipate heat from the photovoltaic modules. This, in turn, leads to higher operating temperatures of the photovoltaic modules, reducing the power generation efficiency and practicality of the photovoltaic system. To address the above issues, the present application proposes a heat dissipation device 100.

[0028] See also Figures 1 to 5 In one embodiment of the present application, the heat dissipation device 100 includes an air outlet housing 10, a heat sink 30 and a guide boss 50. The air outlet housing 10 is provided with an air flow space 11. The air outlet housing 10 is provided with an air inlet 13 and an air outlet 15 connected to the air flow space 11. The air flow space 11 has a first inner wall and a second inner wall relative to each other; the heat sink 30 is provided in the air flow space 11 and connected to the first inner wall; the guide boss 50 is provided in the air flow space 11 and connected to the second inner wall. The guide boss 50 and the first inner wall are spaced apart to form a compressed air duct 111. The guide boss 50 and the heat sink 30 are arranged in sequence along the air inlet direction.

[0029] It is understandable that the photovoltaic system can install and fix the photovoltaic bracket on the building roof 400, and use mounting components such as pressure blocks and bolts to connect and fix the photovoltaic module 200 to the photovoltaic bracket, so that the back of the photovoltaic module 200 can be installed at a certain distance from the building roof 400, which facilitates the flow of air between the photovoltaic module 200 and the building roof 400, improves the heat dissipation effect of the photovoltaic module 200, and at the same time can help reduce the heat conduction from the photovoltaic module 200 to the building roof 400, thereby ensuring the stable operation of the photovoltaic system.

[0030] In the present application, the photovoltaic system can install the heat dissipation device 100 between the back of the photovoltaic module 200 and the building roof 400. At this time, the thickness of the air outlet shell 10 of the heat dissipation device 100 can be set corresponding to the distance between the photovoltaic module 200 and the building roof 400, so that the side wall of the air outlet shell 10 close to the first inner wall of the air flow space 11 is in contact with the back of the photovoltaic module 200, so that the heat on the photovoltaic module 200 can be conducted to the heat sink 30 through the air outlet shell 10. Then, when the air flow enters the air flow space 11 from the air inlet 13 of the air outlet shell 10 and flows toward the air outlet 15, the larger surface area of the heat sink 30 can be used to accelerate the heat exchange with the incoming air flow, so that the incoming air flow can quickly take away the heat on the heat sink 30 when flowing through the heat sink 30, thereby better improving the heat dissipation effect of the heat dissipation device 100 on the photovoltaic module 200.

[0031] By arranging a guide boss 50 in the airflow space 11 and arranging the guide boss 50 and the heat sink 30 in sequence along the air inlet direction of the airflow, the guide boss 50 can be used to occupy the channel cross-sectional area of the reduced airflow space 11, so that a compressed air duct 111 with a smaller width can be formed between the surface of the guide boss 50 and the first inner wall. Then, when the airflow enters the airflow space 11 from the air inlet 13, it can first flow through the compressed air duct 111, and the airflow can be compressed under the action of the smaller flow area of the compressed air duct 111, which is conducive to increasing the wind speed of the airflow and reducing the pressure of the airflow, so that the airflow can act on the heat sink 30 at a higher wind speed, so that the airflow can take away the heat on the heat sink 30 more quickly, thereby realizing the rapid heat dissipation of the photovoltaic component 200 by the heat dissipation device 100, and further improving the heat dissipation effect of the heat dissipation device 100.

[0032] In addition, since the photovoltaic module 200 usually needs to be installed at a certain angle so that the photovoltaic module 200 can be better placed toward the light source, the heat dissipation device 100 can be placed along the arrangement direction of the photovoltaic module 200, with the air inlet 13 of the air outlet housing 10 facing obliquely downward, and the air outlet 15 facing obliquely upward. By allowing the airflow to enter the airflow space 11 to remove the heat from the heat sink 30 and then flow out from the air outlet 15, a certain temperature difference can be created between the air inlet and air outlet sides of the heat dissipation device 100. As a result, the rising action of the high-temperature airflow flowing out of the air outlet 15 can better drive the low-temperature airflow in the environment into the air inlet 13, which is conducive to better increasing the amount of airflow entering the airflow space 11 and further improving the heat dissipation effect and practicality of the heat dissipation device 100 on the photovoltaic module 200.

[0033] Compared with using devices such as air towers and fans protruding from the building roof 400 to dissipate heat from the photovoltaic module 200, the heat dissipation device 100 of the present application is set between the photovoltaic module 200 and the building roof 400 to dissipate heat. This can effectively prevent the heat dissipation device 100 from blocking the light-facing surface of the photovoltaic module 200 facing the light source, ensuring that the light-facing surface of the photovoltaic module 200 can fully receive and convert light energy, thereby achieving a more stable and reliable power generation effect for the photovoltaic system, and further improving the practicality and reliability of the heat dissipation device 100.

[0034] In one embodiment of the present application, by sequentially arranging a guide boss 50 and a heat sink 30 along the air inlet direction in the air flow space 11 of the air outlet shell 10, the heat sink 30 can be used to stably conduct the heat of the photovoltaic module 200 on the first inner wall, and the guide boss 50 can be used to reduce the channel cross-sectional area of the air flow space 11 to form a compressed air duct 111, so that the low-temperature airflow in the external environment can enter the air flow space 11 from the air inlet 13, and the wind speed of the incoming air flow can be stably increased by the compression action of the compressed air duct 111, so that the incoming air flow can quickly flow through the heat sink 30 to take away the heat on the heat sink 30, thereby achieving a better heat dissipation effect of the heat dissipation device 100 on the photovoltaic module 200, and further improving the practicality and reliability of the heat dissipation device 100.

[0035] See Figures 1 to 3 In one embodiment of the present application, a ventilation port 17 is provided on one side of the air outlet housing 10 , and a connecting hole 50 a is provided on the guide boss 50 , which is connected to the ventilation port 17 in correspondence.

[0036] In this embodiment, ventilation holes connected to the interior space of the building can be opened on the building roof 400. When the heat dissipation device 100 is arranged between the photovoltaic module 200 and the building roof 400, the ventilation port 17 on one side of the air outlet shell 10 corresponds to the ventilation hole connected to the building roof 400. When the outlet airflow flows at the compressed air duct 111, the connecting hole 50a can form a negative pressure space under the action of the high-speed flow of the airflow, and then the air in the building can be driven to flow toward the ventilation hole, so that the air in the building can form an airflow through the ventilation port 17 and the connecting hole 50a and enter the airflow space 11, which is conducive to better increasing the airflow entering the airflow space 11, so that the heat dissipation device 100 can compress and accelerate the airflow with a larger flow through the compressed air duct 111 and then flow it to the heat sink 30 for heat dissipation, thereby achieving a better heat dissipation effect of the heat dissipation device 100 on the photovoltaic module 200 and ensuring stable and reliable operation of the photovoltaic system. In addition, by using the heat dissipation device 100 to drive the air inside the building to flow into the air flow space 11 for heat dissipation and exhaust, it is also beneficial for the heat dissipation device 100 to play a certain role in ventilating the building, further improving the practicality and reliability of the heat dissipation device 100.

[0037] See Figure 1In one embodiment of the present application, the guide boss 50 includes a first boss 51, a second boss 53 and a water-blocking enclosure 55. The first boss 51 and the second boss 53 are spaced apart along the air inlet direction; the water-blocking enclosure 55 is arranged on opposite sides of the first boss 51 and the second boss 53, and connects the first boss 51 and the second boss 53. The water-blocking enclosure 55 and the first boss 51 and the second boss 53 are enclosed to form a connecting hole 50a.

[0038] In this embodiment, the connecting hole 50a is formed by enclosing the first boss 51, the second boss 53 and the waterproof enclosure 55, so that the connecting hole 50a can be set higher than the second inner wall in the air flow space 11. Since the air outlet 15 and the air inlet 13 of the heat dissipation device 100 are open, in thunderstorm weather, rainwater falling on the building roof 400 can easily enter the air flow space 11 through the air inlet 13 or the air outlet 15. At this time, under the enclosing action of the waterproof enclosure 55, the first boss 51 and the second boss 53, the water flow channel connecting hole 50a on the second inner wall can be effectively prevented from flowing, thereby effectively preventing the water flowing into the heat dissipation device 100 from falling into the interior of the building, so that the heat dissipation device 100 can achieve better waterproof performance, so that the heat dissipation device 100 can be stably set between the photovoltaic module 200 and the building roof 400 to dissipate heat for the photovoltaic module 200, further improving the practicality and structural reliability of the heat dissipation device 100.

[0039] See Figure 2 and Figure 4 In one embodiment of the present application, the heat dissipation device 100 has an up-down direction, and the height of the first boss 51 along the up-down direction is smaller than the height of the second boss 53 along the up-down direction.

[0040] In this embodiment, the up and down direction can be a direction perpendicular to the incoming air flow direction in the air flow space 11 on a vertical plane. By making the height of the first boss 51 in the up and down direction smaller than the height of the second boss 53 in the up and down direction, the channel cross-sectional area of the compressed air duct 111 can be gradually reduced along the incoming air direction, which is beneficial for the incoming air flow to be gradually compressed along the first boss 51 and the second boss 53 when flowing through the compressed air duct 111, thereby ensuring a large amount of air intake for the heat dissipation device 100 and reducing the blocking effect of the guide boss 50 on the air flow in the air flow space 11, thereby enabling the heat dissipation device 100 to inhale a larger amount of air flow to quickly take away the conducted heat on the heat sink 30, so that the heat dissipation device 100 can achieve better heat dissipation effect, further improving the practicality and reliability of the heat dissipation device 100.

[0041] See Figure 4 and Figure 5In one embodiment of the present application, the air outlet housing 10 is provided with a folding plate at the edge of the ventilation port 17, and the folding plate is bent toward the air flow space 11. The folding plate is formed into a first boss 51, and the size of the connecting hole 50a is smaller than the size of the ventilation port 17.

[0042] In this embodiment, a folding plate is provided at the edge of the ventilation port 17. The folding plate can be formed on the second inner wall inside the air outlet shell 10 by welding, or the folding plate can be a partial structure retained at the edge of the ventilation port 17 when the ventilation port is processed on the air outlet shell 01. By bending the folding plate toward the air flow space 11, the folding plate can be inclined relative to the second inner wall, so that the folding plate can be formed into a first boss 51. Furthermore, by using the bent folding plate to form the first boss 51, the air outlet shell 10 can be provided with a larger ventilation port 17, which is conducive to better increasing the air extraction volume of the heat dissipation device 100 into the building house, so that the airflow in the building house can better flow into the airflow space 11 for ventilation and heat dissipation; and the size of the connecting hole 50a formed by the spacing between one side of the folding plate and the second boss 53 can be smaller than the size of the ventilation port 17, so that the airflow passing through the ventilation port 17 can be converged at the connecting hole 50a by utilizing the guiding effect of the folding plate, which is conducive to better increasing the airflow velocity and air volume entering the airflow space, achieving better ventilation and ventilation effects of the heat dissipation device 100, and further improving the practicality and reliability of the heat dissipation device 100.

[0043] In one embodiment of the present application, the heat dissipation device 100 is provided with structural adhesive, which is attached to one side of the air outlet housing 10 and arranged around the ventilation port 17 , and is used to bond to the building roof 400 .

[0044] In this embodiment, the heat dissipation device 100 can be provided with structural adhesive on the side of the air outlet shell 10 facing the building roof 400. The structural adhesive can have good waterproof performance and adhesion performance, etc., so that the structural adhesive can be attached to the outer surface of the air outlet shell 10 and surround the ventilation port 17. Then, when the heat dissipation device 100 is installed between the photovoltaic module 200 and the building roof 400, the structural adhesive can be used to adhere the air outlet shell 10 and the building roof 400, so that the structural adhesive can stably fill the gap between the air outlet shell 10 and the building roof 400. By utilizing the characteristic of the structural adhesive having good waterproof performance, water that penetrates between the air outlet shell 10 and the building roof 400 can be effectively prevented from flowing into the ventilation holes of the building roof 400, thereby effectively realizing the waterproof installation of the heat dissipation device 100 and the building roof 400, ensuring the stable ventilation of the building by the heat dissipation device 100, and further improving the practicality and reliability of the heat dissipation device 100.

[0045] Among them, the structural adhesive can also have a good adhesion effect, and thus the structural adhesive can be applied to the entire side of the air outlet shell 10 facing the building roof 400, and the air outlet shell 10 and the building roof 400 are bonded together by the structural adhesive to achieve the installation and fixation of the heat dissipation device 100 on the building roof 400, thereby ensuring that the heat dissipation device 100 can stably and reliably dissipate heat to the photovoltaic module 200.

[0046] In one embodiment of the present application, the air outlet housing 10 has an upper surface, and the heat dissipation device 100 is provided with a thermally conductive material. The thermally conductive material is attached to the upper surface of the air outlet housing 10 and is used to abut against the photovoltaic assembly 200 .

[0047] In this embodiment, the air outlet shell 10 may have an upper surface that contacts and conducts heat with the photovoltaic component 200. By attaching a thermally conductive material on the upper surface of the air outlet shell 10, the thermally conductive material may be a material with good thermal conductivity such as thermal grease, thermally conductive colloid or graphite. When the heat dissipation device 100 is installed between the photovoltaic component 200 and the building roof 400, the thermally conductive material on the upper surface of the air outlet shell 10 can be used to abut against the back of the photovoltaic component 200, which is conducive to better utilizing the thermally conductive material to fill the gap between the air outlet shell 10 and the photovoltaic component 200, avoiding the formation of an air layer between the air outlet shell 10 and the photovoltaic component 200 to affect the heat conduction between the photovoltaic component 200 and the air outlet shell 10, and at the same time utilizing the better thermal conductivity of the thermally conductive material to enable the heat on the photovoltaic component 200 to be quickly conducted to the heat dissipation device 100, thereby better improving the rapid heat dissipation effect of the heat dissipation device 100 on the photovoltaic component 200, and further improving the practicality and reliability of the heat dissipation device 100.

[0048] See Figure 1 、 Figure 2 and Figure 4 In one embodiment of the present application, the guide boss 50 has a guide slope 50b, and the guide slope 50b is inclined or arc-shaped relative to the second inner wall.

[0049] In this embodiment, the surface of the guide boss 50 facing the first inner wall can be set as a guide slope 50b. By making the guide slope 50b inclined or arc-shaped relative to the second inner wall, the guide slope 50b can play a better role in guiding the flow of air. When the incoming air flow enters the air flow space 11 from the air inlet 13, the air flow can be gradually compressed and accelerated along the guide slope 50b, which is conducive to better avoiding the blocking effect of the guide boss 50 on the incoming air flow in the air flow space 11, and achieving a better guiding and drainage effect of the guide boss 50, so that the heat dissipation device 100 can better achieve large-volume air intake and heat dissipation, and further improve the practicality and structural reliability of the heat dissipation device 100.

[0050] In one embodiment of the present application, the heat dissipation device 100 further includes a fixing component, which is connected to the air outlet housing 10 and is used to connect to the photovoltaic support or the building roof 400.

[0051] In this embodiment, the heat dissipation device 100 can be connected to the air outlet housing 10 using a fixing member such as a mount, a pressure block member, a rod, or a cable, and the fixing member is connected to the photovoltaic support or the building roof 400, thereby achieving a stable installation of the heat dissipation device 100 between the photovoltaic module 200 and the building roof 400. This helps to better prevent the heat dissipation device 100 from being separated from the photovoltaic module 200 and the building roof 400, and ensures stable contact and heat dissipation between the heat dissipation device 100 and the photovoltaic module 200. In addition, under the connection and support of the fixing member, it is also helpful to better improve the load-bearing capacity of the air outlet housing 10, so that the heat dissipation device 100 can more stably cope with extreme outdoor weather, effectively prevent the heat dissipation device 100 from being damaged in extreme weather, effectively increase the service life of the heat dissipation device 100, and further improve the practicality and reliability of the heat dissipation device 100.

[0052] The present application also proposes a photovoltaic system, which includes a photovoltaic bracket, a photovoltaic module 200 and a heat dissipation device 100. The specific structure of the heat dissipation device 100 refers to the above embodiment. Since the present photovoltaic system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0053] The above description is merely an exemplary embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the contents of the present application specification and drawings under the technical concept of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A heat dissipation device, characterized in that: include: An air outlet housing, wherein an air flow space is provided in the air outlet housing, the air outlet housing is provided with an air inlet and an air outlet communicating with the air flow space, and the air flow space has a first inner wall and a second inner wall opposite to each other; a heat sink disposed in the airflow space and connected to the first inner wall; The guide boss is arranged in the airflow space and connected to the second inner wall. The guide boss and the first inner wall are spaced apart to form a compressed air passage. The guide boss and the heat sink are arranged in sequence along the air inlet direction.

2. The heat dissipation device according to claim 1, wherein: A ventilation port is provided on one side of the air outlet housing, and a connecting hole is provided on the flow guide boss, and the connecting hole is correspondingly connected with the ventilation port.

3. The heat dissipation device according to claim 2, wherein: The guide boss comprises: first boss; a second boss, wherein the first boss and the second boss are spaced apart from each other along the air inlet direction; A water-blocking enclosure is provided on opposite sides of the first boss and the second boss, and connects the first boss and the second boss. The water-blocking enclosure, the first boss and the second boss are combined to form the communicating hole.

4. The heat dissipation device according to claim 3, wherein: The distance between the first boss and the first inner wall is greater than the distance between the second boss and the first inner wall.

5. The heat dissipation device according to claim 3, wherein: The air outlet housing is provided with a folded plate at the edge of the ventilation port, the folded plate is bent toward the airflow space, the folded plate is formed into the first boss, and the size of the communicating hole is smaller than the size of the ventilation port.

6. The heat dissipation device according to claim 2, wherein: The heat dissipation device is provided with structural adhesive, which is attached to one side of the air outlet shell and arranged around the air exchange port. The structural adhesive is used to bond the building roof.

7. The heat dissipation device according to any one of claims 1 to 6, wherein: The diversion boss has a diversion slope, and the diversion slope is arranged obliquely or in an arc shape relative to the second inner wall.

8. The heat dissipation device according to any one of claims 1 to 6, wherein: The air outlet housing has an upper surface. The heat dissipation device is provided with a heat conductive material. The heat conductive material is attached to the upper surface of the air outlet housing and is used to abut against the photovoltaic assembly.

9. The heat dissipation device according to claim 1, wherein: The heat dissipation device further comprises a fixing member, which is connected to the air outlet housing and is used to connect to a photovoltaic support or a building roof.

10. A photovoltaic system, characterized in that: The photovoltaic system includes a photovoltaic bracket, a photovoltaic module and a heat dissipation device, the heat dissipation device is the heat dissipation device described in any one of claims 1 to 9, the photovoltaic module is installed on the photovoltaic bracket, and the heat dissipation device is connected to the back of the photovoltaic module.

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