A heat dissipation shell, a fan assembly and an energy storage converter

Abstract

The application relates to a heat dissipation shell, a fan assembly and an energy storage converter, wherein the heat dissipation shell comprises a shell body and a baffle arranged in the shell body, a wind cavity is arranged in the shell body, the shell body comprises a first wall part and a second wall part which are oppositely arranged along a first direction, the first wall part is provided with a fan mounting part, the second wall part is provided with an air outlet, the air outlet is communicated with the wind cavity and corresponds to the fan mounting part; the air outlet comprises a plurality of air holes which are arranged at intervals along a second direction; the air hole closest to the projection of the center of the fan mounting part on the second wall part along the second direction is a first air hole, and the first air hole is provided with a baffle extending towards the first wall part; the first direction and the second direction are perpendicular. By arranging the baffle at the first air hole, the air volume of the first air hole can be increased, the uniformity of air outlet of each air hole is improved, the heat dissipation uniformity of each heat dissipation component is improved, and the service life and reliability of each heat dissipation component are improved.

Description

Technical Field

[0001] This application relates to the field of wind turbine technology, specifically to a heat dissipation housing, a wind turbine assembly, and an energy storage converter. Background Technology

[0002] In power electronic products such as energy storage converters, fan components are commonly used to dissipate heat from power modules to improve their lifespan and reliability. Common fan components include centrifugal fans and heat sink housings. The heat sink housing has an air cavity and an air outlet connected to the air cavity. The air outlet is set corresponding to the power module. However, due to the influence of the motor and operating point when the centrifugal fan is working, the air is circumferentially directed outwards. During the process of the cooling air flowing from the air cavity to the air outlet, the flow path is a spiral structure. The pressure of the air holes near the axis of the centrifugal fan is low, resulting in a relatively small air volume. The air volume of each air hole is uneven, which affects the heat dissipation of some components to be cooled. After long-term operation, this affects their lifespan and reliability. Utility Model Content

[0003] This application provides a heat dissipation housing, a fan assembly, and an energy storage converter, which can improve the uniformity of airflow from each air vent, improve the heat dissipation uniformity of each component to be cooled, and thus improve the lifespan and reliability of each component to be cooled.

[0004] This application provides a heat dissipation housing, including a housing and a baffle disposed within the housing. The housing has an air cavity. The housing includes a first wall and a second wall disposed opposite to each other along a first direction. The first wall has a fan mounting portion, and the second wall has an air outlet. The air outlet communicates with the air cavity and corresponds to the fan mounting portion. The air outlet includes a plurality of air holes arranged at intervals along a second direction. Along the second direction, the air hole closest to the projection of the center of the fan mounting portion onto the second wall is a first air hole. The baffle extending toward the first wall is disposed at the first air hole. The first direction and the second direction are perpendicular.

[0005] In some embodiments, the baffle divides the first air hole into a first hole portion and a second hole portion, the first hole portion and the second hole portion being located on both sides of the baffle along the second direction.

[0006] In some embodiments, the baffle is a flat plate structure.

[0007] In some embodiments, the baffle includes a first plate and a second plate disposed along a third direction, and the first air hole forms a first hole wall and a second hole wall on its two side walls along the second direction, respectively. The first plate is disposed on the side of the first hole wall, and the second plate is disposed on the side of the second hole wall; the first direction, the second direction and the third direction are perpendicular to each other.

[0008] In some embodiments, the baffle further includes a connecting plate connected between the first plate and the second plate.

[0009] In some embodiments, the baffle is provided with a flange structure, which is connected to the housing.

[0010] In some embodiments, the housing is provided with at least two air outlets and at least two fan mounting portions, each air outlet is correspondingly provided with one fan mounting portion, and each air outlet is respectively connected to the air cavity; the air outlet includes at least three air holes.

[0011] In some embodiments, the side wall of the housing is further provided with an operating port and a cover plate. The operating port communicates with the air cavity, and the cover plate is detachably connected to the side wall of the housing and blocks the operating port.

[0012] This application provides a fan assembly, including a centrifugal fan and a heat dissipation housing as described above.

[0013] This application provides an energy storage converter, including a power module and a fan assembly as described above, wherein the air outlet of the fan assembly is correspondingly arranged with respect to the power module.

[0014] The heat dissipation housing, fan assembly, and energy storage converter provided in this application have the following technical advantages:

[0015] A baffle is installed at the first air vent. The baffle can partially block the passing cooling air at the first air vent by blocking the wind surface, so that the blocked cooling air can be discharged outward through the first air vent along the wind-blocking surface of the baffle. This increases the air volume of the first air vent, reduces the difference in air volume between the first air vent and other air vents, improves the uniformity of air volume of each air vent, improves the heat dissipation effect of the component to be cooled corresponding to the first air vent, and reduces the impact on the lifespan and reliability of the component to be cooled due to the small air volume of the first air vent.

[0016] The heat dissipation housing provided in this application only requires baffles to be installed on some of the air outlet holes on the basis of a conventional heat dissipation housing to improve the uniformity of air volume of each air outlet. The overall structure is simple, requires little modification, is flexibly applicable to conventional heat dissipation housings, and is convenient for mass production and later maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the heat dissipation housing provided in the embodiments of this application;

[0018] Figure 2 yes Figure 1 A schematic diagram of the heat sink housing and centrifugal fan in the installed state, without some cover plates installed;

[0019] Figure 3 yes Figure 1 A schematic diagram of the internal structure of the heat sink casing when the first wall is removed;

[0020] Figure 4 This is a schematic diagram of the second wall of the heat sink housing and the baffle in the installed state;

[0021] Figure 5 yes Figure 4 A schematic diagram of the structure of the first air vent in the middle;

[0022] Figure 6 This is a schematic diagram of the second wall of the heat sink housing and another type of baffle in the installed state;

[0023] Figure 7 This is a schematic diagram of the second wall of the heat sink housing and another type of baffle in the installed state;

[0024] Figure 8 This is a schematic diagram of the baffle structure;

[0025] Figure 9 This is an exploded view of the heatsink casing;

[0026] Figure 10 This is a schematic diagram of the structure of the fan assembly provided in the embodiments of this application.

[0027] The annotations in the attached figures are explained as follows:

[0028] 1000 heat sink housing; 2000 fan;

[0029] 100 Housing; 110 Air cavity; 120 First wall; 130 Second wall; 140 Fan mounting part; 141 Axis; 142 Mounting hole; 143 Fixing hole; 150 Air outlet; 151 Air hole; 152 First air hole; 1521 First hole; 1522 Second hole; 1523 First hole wall; 1524 Second hole wall; 1525 First side; 1526 Second side; 160 Operating port; 170 Cover plate;

[0030] 200 Baffle; 210 Flanged structure; 211 Connecting hole; 212 Strip hole; 213 Connecting groove; 220 Plate; 221 First plate; 222 Second plate; 230 Connecting plate. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In power electronic products such as energy storage converters, fan components are commonly used to dissipate heat from power modules to improve their lifespan and reliability. Common fan components include centrifugal fans and heat sink housings. The heat sink housing has an air cavity and an air outlet connected to the air cavity. The air outlet is positioned corresponding to the power module and blows cooling air onto the power module through the air outlet. However, since the centrifugal fan blows air outward circumferentially when it is working, the flow path of the cooling air in the air cavity to the air outlet is spiral. The air volume at the position corresponding to the axis of the centrifugal fan is relatively small, and the air outlet has poor uniformity. This affects the heat dissipation of some components that need to be cooled, which affects their lifespan and reliability after long-term operation.

[0033] This application provides a heat dissipation housing that can effectively improve the uniformity of airflow at various locations of the air outlet 150.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, the heat dissipation housing 1000 includes a housing 100, and a wind cavity 110 is provided inside the housing 100. The housing 100 includes a first wall portion 120 and a second wall portion 130 arranged opposite to each other along a first direction. The first wall portion 120 is provided with a fan mounting portion 140 for mounting a fan 2000. The second wall portion 130 is provided with an air outlet 150, which is connected to the wind cavity 110. The fan mounting portion 140 and the air outlet 150 are correspondingly arranged. During operation, the fan 2000 installed in the fan mounting portion 140 can provide circulation power for the heat dissipation air flowing through the wind cavity 110, so that the heat dissipation air can enter the wind cavity 110 from the air inlet of the fan 2000 and be discharged from the air outlet 150 to the power module waiting for heat dissipation components after passing through the wind cavity 110, so as to dissipate heat from the components waiting for heat dissipation.

[0035] The air outlet 150 includes a plurality of air holes 151 spaced apart along a second direction, which is perpendicular to the first direction. Along the second direction, the projection of the center of the fan mounting part 140 onto the second wall part 130 is called the "center projection". The air hole 151 closest to the center projection is the first air hole 152. A baffle 200 is provided at the first air hole 152, and the baffle 200 extends toward the side of the first wall part 120.

[0036] The fan mounting part 140 is used to install the fan 2000. There are no restrictions on the structure of the fan mounting part 140. For example, the fan mounting part 140 may include a mounting hole 142 provided in the first wall 120 of the housing 100, and may also include a plurality of fixing holes 143 provided circumferentially along the mounting hole 142. The fan 2000 may be installed in the mounting hole 142 and fixed by fasteners cooperating with the fixing holes 143.

[0037] The center of the fan mounting section 140 is the center of the air outlet side when the fan 2000 is installed in the fan mounting section 140, such as Figure 1 When the mounting hole 142 of the fan mounting part 140 shown is a circular hole, the projection of the center of the fan mounting part 140 onto the second wall part 130 refers to the projection of the axis 141 of the mounting hole 142 onto the second wall part 130, such as... Figure 2 As shown, when the fan 2000 is installed in the fan mounting section 140, the center projection refers to the projection of the axis of the fan 2000 onto the second wall section 130.

[0038] When the fan 2000 is a centrifugal fan, due to the influence of the motor and the working point during operation, the airflow is directed outward in the circumferential direction. As the cooling air flows from the air cavity 110 to the air outlet 150, the flow path is spiral. This results in a relatively large airflow from the air hole 151 on the second wall 130, which is away from the air outlet side of the fan 2000 along the second direction. Conversely, the air hole 151 (i.e., the first air hole 152), which is closer to the air outlet side of the fan 2000, has lower pressure and a relatively smaller airflow. The airflow from each air hole 151 is uneven, which affects the heat dissipation effect of the component to be cooled corresponding to the first air hole 152. After long-term operation, this affects its lifespan and reliability.

[0039] The baffle 200 partially blocks the passing cooling air at the first air vent 152 by blocking the airflow. The baffle surface of the baffle 200 refers to the side wall of the baffle 200 used to block the cooling air; this side wall is the side facing the wind. The first air vent 152 can communicate with the air cavity 110 from one side of the baffle surface of the baffle 200. By blocking the airflow with the baffle 200, the blocked cooling air can be discharged outward along the baffle surface of the baffle 200 through the first air vent 152, thereby increasing the airflow of the first air vent 152, reducing the difference in airflow between the first air vent 152 and other air vents 151, improving the uniformity of airflow from each air vent 151, improving the heat dissipation effect of the component to be cooled corresponding to the first air vent 152, and reducing the impact on the lifespan and reliability of the component to be cooled due to the small airflow of the first air vent 152.

[0040] The heat dissipation housing 1000 provided in this embodiment only requires baffles 200 to be set on some of the air holes 151 of the air outlet 150 based on the conventional heat dissipation housing 1000, so as to improve the uniformity of the air volume of each air hole 151. The overall structure is simple, with little modification, and is flexibly applicable to conventional heat dissipation housing 1000, which is convenient for mass production and later maintenance.

[0041] In this embodiment, a baffle 200 is provided at the air vent 151 (i.e., the first air vent 152) closest to the central projection. A group of air outlets 150 may include one first air vent 152 or two first air vents 152. In this case, the central projection is located in the middle position between the two first air vents 152. In the same group of air outlets 150, baffles 200 may also be provided at other air vents 151 close to the central projection. If the air outlet 150 includes multiple air vents 151, baffles 200 may be provided at the two or three air vents 151 closest to the central projection. The number of air vents 151 with baffles 200 can be set according to the actual situation.

[0042] like Figure 4 As shown, the baffle 200 divides the first air hole 152 into a first hole portion 1521 and a second hole portion 1522. The first hole portion 1521 and the second hole portion 1522 are located on both sides of the baffle 200 along the second direction. The first air hole 152 shown in the figure extends along the third direction. The wind-blocking surface of the baffle 200 is different at different positions in the third direction. When the baffle 200 divides the first air hole 152 into two hole portions, the side plate of the baffle 200 facing the first hole portion 1521 and the side plate of the baffle 200 facing the second hole portion 1522 can both serve as wind-blocking surfaces. Both the first hole portion 1521 and the second hole portion 1522 can emit air. Furthermore, the main air outlet positions of the first air hole and the second air hole in the third direction are different.

[0043] like Figure 5 As shown, the first hole 1521 includes a first side 1525 and a second side 1526 along a third direction. The flow direction of the cooling air in the air cavity 110 is a counterclockwise spiral direction as indicated by the dashed arrow. The cooling air flowing through the first side 1525 is blocked by the wind-blocking surface formed by the left side plate of the baffle 200. The blocked air is discharged through the second hole 1522 of the first side 1525. The cooling air flowing through the second side 1526 is blocked by the wind-blocking surface formed by the right side plate of the baffle 200. The blocked air is discharged through the first hole 1521 of the second side 1526. The baffle 200 can increase the air volume of the first side 1525 and the second side 1526 of the first air hole 152, and improve the air volume and uniformity of the first air hole 152 along a third direction. The structure is relatively simple.

[0044] The air outlet 150 is correspondingly provided to the fan mounting part 140. The air outlet 150 corresponds to the component to be cooled. Taking the component to be cooled as a power module as an example, the number and position of the air outlet 151 can be set according to the structure of the power module. For example, if the power module has three phases A, B, and C, the air outlet 150 corresponding to the power module is provided with three air outlets 151. The three air outlets 151 respectively blow air to the three phases A, B, and C for cooling. Among them, the air outlet 151 corresponding to B is located near the center of the fan mounting part 140 and is set on the projection of the second wall part 130 to form the first air outlet 152. The first air outlet 152 is provided with a baffle 200 to increase the air volume to the B phase, so that the air volume to the three phases A, B, and C is more uniform, and the uniformity of the cooling effect of each phase of the power module is improved.

[0045] like Figure 5 As shown, the first hole portion 1521 includes a first hole wall 1523 and a second hole wall 1524 along the second direction, wherein the first hole portion 1521 is formed between the baffle 200 and the first hole wall 1523, and the second hole portion 1522 is formed between the baffle 200 and the second hole wall 1524.

[0046] Along the second direction, if the distance between the first hole wall 1523 and the center projection is the same as the distance between the second hole wall 1524 and the center projection, then the cross-sectional areas of the first hole 1521 and the second hole 1522 are the same, and the air volume of the first hole 1521 and the second hole 1522 is the same.

[0047] Along the second direction, if the distance between the first hole wall 1523 and the center projection is greater than the distance between the second hole wall 1524 and the center projection, then the cross-sectional area of ​​the first hole 1521 is smaller than the cross-sectional area of ​​the second hole 1522. That is, the baffle 200 is set close to the first hole wall 1523 to appropriately increase the air volume of the second hole 1522, so that the air volume of the first hole 1521 and the second hole 1522 is more uniform.

[0048] Of course, the first air hole 152 can also be located entirely on one side of the windproof surface of the baffle 200. For example, the air outlet 150 is provided with at least two first air holes 152 in the third direction, and the baffle 200 of each air hole 151 is independent. In this case, the baffle 200 of some of the first air holes 152 is located on one side of the first hole wall 1523 of the first air hole 152, and the baffle 200 of some of the first air holes 152 is located on one side of the second hole wall 1524 of the first air hole 152.

[0049] The baffle 200 can be a flat plate structure. This design simplifies the structure of the baffle 200, simplifies the installation process, and reduces the manufacturing process and cost of the baffle 200.

[0050] like Figure 4 and Figure 5As shown, the baffle 200 extends along a third direction, with the first direction, the second direction, and the third direction being perpendicular to each other. Alternatively, the baffle 200 can be tilted so that it forms a certain angle with both the second direction and the third direction. Of course, the baffle 200 can also be a plate with a corrugated structure.

[0051] like Figure 6 As shown, the baffle 200 can also be configured to include two plates 220, namely a first plate 221 and a second plate 222, which are arranged along a third direction. Along the third direction, the first plate 221 is arranged on the first side 1525 of the first air hole 152, and the second plate 222 is arranged on the second side 1526 of the first air hole 152. Along the second direction, the first plate 221 is arranged on the side of the first hole wall 1523, and the second plate 222 is arranged on the side of the second hole wall 1524.

[0052] The cooling air flowing through the first side 1525 is blocked by the first plate 221, and the air blocked by the first plate 221 is discharged from the first side 1525. The cooling air flowing through the second side 1526 is blocked by the second plate 222, and the air blocked by the second plate 222 is discharged from the second side 1526. The arrangement of the first plate 221 and the second plate 222 can increase the air volume of the first air hole 152 at the first side 1525 and the second side 1526, and improve the air volume and uniformity of the first air hole 152 at various positions along the third direction. The structure is relatively simple.

[0053] like Figure 6 In the embodiment shown, the first plate 221 and the second plate 222 are not directly connected. The first plate 221 and the second plate 222 can be connected to the housing 100 separately, which provides good flexibility.

[0054] like Figure 7 In the illustrated embodiment, the baffle 200 further includes a connecting plate 230, which connects the first plate 221 and the second plate 222. The connecting plate 230 connects the plates 220, allowing the baffle 200 to form a single integral component, facilitating assembly and disassembly. The baffle 200 can be a one-piece molded structure, such as formed by bending a plate structure, or the plates 220 can be independent of each other and connected to the first plate 221 and the second plate 222 via the connecting plate 230.

[0055] like Figure 8 As shown, the baffle 200 is provided with flange structures 210 at both ends along the third direction. The flange structures 210 are connected to the side wall of the housing 100, and can be connected by fasteners, snap-fit, or other means. Of course, the position of the flange structures 210 is not limited. For example, the flange structure 210 can also be provided on the edge of the baffle 200 facing the second wall 130 and connected to the second wall 130.

[0056] Taking a baffle 200 with flanged structures 210 at both ends along a third direction as an example, the flanged structures 210 may be provided with connecting holes 211, which can be connected to the housing 100 by fasteners. At least one of the connecting holes 211 of the flanged structures 210 is a strip hole 212, which can reduce the precision requirements of the connecting hole 211 and the mating structure (the mating structure can be a stud, nut, threaded hole or mating hole) provided on the housing 100, reduce production costs and provide good flexibility. Alternatively, the flanged structure 210 may be provided with a connecting groove 213 and connected to the housing 100 by fasteners. Or, the flanged structure 210 may also be provided with both a strip hole 212 and a connecting groove 213.

[0057] The number of connecting holes 211 in the flange structure 210 is not limited; there can be one, two, or more holes, which can be arranged according to the actual location, space, size, and other conditions.

[0058] Of course, in this embodiment, there is no limitation on the connection method between the baffle 200 and the housing 100. For example, the baffle 200 can be connected to the housing 100 by an additional adapter, or the baffle 200 can be connected to the housing 100 by welding. The baffle 200 is connected to the housing 100 by the flange structure 210, which simplifies the overall structure, reduces the number of parts, and facilitates disassembly and assembly.

[0059] The housing 100 may be provided with two air outlets 150 and two fan mounting parts 140. The number of air outlets 150 is the same as the number of fan mounting parts 140, and each air outlet 150 is correspondingly provided with one fan mounting part 140. Each air outlet 150 is connected to the air cavity 110. The housing 100 can simultaneously install two fans 2000. The two fans 2000 share one air cavity 110. The two air outlets 150 corresponding to the two fans 2000 are respectively connected to the air cavity 110. The air in the air cavity 110 can be discharged simultaneously through each air outlet 150. When two fans 2000 are simultaneously provided in one heat dissipation housing 1000, and the heat dissipation housing 1000 is provided with two air outlets 150, the overall structure can be simplified, the cost can be reduced, and the structure is compact and occupies little space. The two fans 2000 share a single air chamber 110, which allows for a larger air outlet space for the fans 2000. Each fan 2000 can exert its maximum advantage, improving the smoothness of the cooling air being discharged from the air outlet 150 through the air chamber 110.

[0060] The heat dissipation housing 1000 can also be provided with more air outlets 150 and fan mounting parts 140 to install more fans 2000. The number of air outlets 150 is the same as the number of fan mounting parts 140 and fans 2000 and is set accordingly. Each air outlet 150 is connected to the air cavity 110 to simplify the overall structure and reduce costs.

[0061] The number of fan mounting sections 140 on the housing 100 is the same as the number of air outlets 150, and can be designed according to the number and location of the components to be cooled. Of course, the housing 100 can also have one fan mounting section 140 and one air outlet 150, and the housing 100 can be equipped with one fan 2000.

[0062] The air outlet 150 includes three air holes 151. When the first wall portion 120 of the housing 100 is provided with two fan mounting portions 140, the second wall portion 130 is provided with six air holes 151. Each set of air outlets 150 includes a first air hole 152, and the first air hole 152 is provided with air holes 151 on both sides along the second direction.

[0063] The three-phase module of the energy storage converter, awaiting heat dissipation, is cooled through the three air vents 151 of the air outlet 150, thereby improving the heat dissipation stability of the three-phase module. Alternatively, the air outlet 150 may include four or more air vents 151, the number of which can be set according to the components to be cooled. Of course, there is no limitation on the number of air vents 151 in the air outlet 150; for example, the air outlet 150 may include two air vents 151, through which the two air vents 151 of the air outlet 150 can cool the components awaiting heat dissipation in the two-phase module.

[0064] like Figure 9 As shown, the peripheral sidewall of the housing 100 is also provided with an operation port 160 and a cover plate 170. The operation port 160 communicates with the air cavity 110. The operation port 160 facilitates the operator to observe and maintain components such as the fan 2000 inside the housing 100. It allows for maintenance of the fan 2000 without disassembly, effectively improving maintenance efficiency and simplifying maintenance operations. The location, size, and number of operation ports 160 can be set according to actual conditions. For example, they can be set on the peripheral sidewall of the housing 100 (i.e., the sidewall circumferentially connected between the first wall portion 120 and the second wall portion 130), with one or two operation ports 160 on each sidewall.

[0065] The cover plate 170 is connected to the peripheral side wall of the housing 100 and can block the operating port 160, so that the air cavity 110 is in a basically closed state, reducing the leakage of internal heat dissipation air from the operating port 160, and allowing the heat dissipation air entering the air cavity 110 to be discharged from the air outlet 150 through the air holes 151, so as to dissipate heat from the components to be cooled. There are no restrictions on the connection method between the cover plate 170 and the side wall of the housing 100. For example, the cover plate 170 can be completely removed, or one side of the cover plate 170 can be hinged to the side wall of the housing 100, and the other side of the cover plate 170 can be connected to the housing 100. The cover plate 170 and the housing 100 can be connected by fasteners, snap-fit ​​connections, or locked by locking devices.

[0066] This application also provides a wind turbine assembly, such as... Figure 10 As shown, the fan assembly includes a fan 2000 and a heat sink housing 1000 as described in the above embodiment. The fan 2000 is mounted on the fan mounting section 140 of the heat sink housing 1000.

[0067] This application embodiment also provides an energy storage converter, which includes a power module and a fan assembly as described in the above embodiment. The fan assembly can ventilate and dissipate heat from the power module. The number of fans 2000, the number of air outlets 150 of the heat dissipation housing 1000, and the number of power modules in the fan assembly are the same and correspondingly arranged to effectively improve the heat dissipation effect of the power module and improve the performance stability of the power module.

[0068] The technical effects of the fan assembly with the aforementioned heat dissipation housing 1000 and the energy storage converter with the aforementioned fan assembly are similar to those of the aforementioned heat dissipation housing 1000, and will not be described in detail here for the sake of brevity.

[0069] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0071] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A heat dissipation housing, characterized in that, The device includes a housing (100) and a baffle (200) disposed within the housing (100). The housing (100) is provided with an air cavity (110). The housing (100) includes a first wall portion (120) and a second wall portion (130) disposed opposite to each other along a first direction. The first wall portion (120) is provided with a fan mounting portion (140), and the second wall portion (130) is provided with an air outlet (150). The air outlet (150) communicates with the air cavity (110) and corresponds to the fan mounting portion (140). The air outlet (150) includes a plurality of air holes (151) arranged at intervals along a second direction; along the second direction, the air hole (151) that is closest to the projection of the center of the fan mounting part (140) onto the second wall part (130) is the first air hole (152), and the first air hole (152) is provided with a baffle (200) extending toward the first wall part (120). The first direction and the second direction are perpendicular.

2. The heat dissipation housing according to claim 1, characterized in that, The baffle (200) divides the first air hole (152) into a first hole portion (1521) and a second hole portion (1522), with the first hole portion (1521) and the second hole portion (1522) located on both sides of the baffle (200) along the second direction, respectively.

3. The heat dissipation housing according to claim 2, characterized in that, The baffle (200) is a flat plate structure.

4. The heat dissipation housing according to claim 1, characterized in that, The baffle (200) includes a first plate (221) and a second plate (222) arranged along a third direction. The first air hole (152) forms a first hole wall (1523) and a second hole wall (1524) on both sides along the second direction. The first plate (221) is located on the side of the first hole wall (1523), and the second plate (222) is located on the side of the second hole wall (1524). The first direction, the second direction, and the third direction are perpendicular to each other.

5. The heat dissipation housing according to claim 4, characterized in that, The baffle (200) further includes a connecting plate (230) connected between the first plate (221) and the second plate (222).

6. The heat dissipation housing according to any one of claims 1-5, characterized in that, The baffle (200) is provided with a flange structure (210), which is connected to the housing (100).

7. The heat dissipation housing according to any one of claims 1-5, characterized in that, The housing (100) is provided with at least two air outlets (150) and at least two fan mounting parts (140), each air outlet (150) is correspondingly provided with one fan mounting part (140), and each air outlet (150) is connected to the air cavity (110); The air outlet (150) includes at least three of the air holes (151).

8. The heat dissipation housing according to any one of claims 1-5, characterized in that, The side wall of the housing (100) is also provided with an operation port (160) and a cover plate (170). The operation port (160) is connected to the air cavity (110). The cover plate (170) is detachably connected to the side wall of the housing (100) and blocks the operation port (160).

9. A fan assembly, characterized in that, Includes a fan (2000) and a heat dissipation housing as described in any one of claims 1-8.

10. An energy storage converter, characterized in that, It includes a power module and a fan assembly as described in claim 9, wherein the air outlet of the fan assembly is correspondingly provided with respect to the power module.

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