Heat dissipation device and vehicle

Abstract

This application provides a heat dissipation device and a vehicle, including a fan, with an air inlet side facing a radiator and an air outlet side including a first part and a second part away from the radiator. A fan shroud is disposed on the first part, and the second part communicates with the outside. A first air guide structure is provided on the fan shroud, and the first air guide structure has an air outlet. The fan is configured to drive external airflow through the radiator for heat exchange, and the first air guide structure is configured to guide the airflow blown by the fan so that the heat-exchanged airflow is discharged through the air outlet and the second part respectively. The air outlet is located in at least a portion of the outer peripheral area of ​​the second part and is used to turbulent the airflow discharged through the second part. This application can create turbulence on the mainstream airflow directly discharged by the fan, reducing the probability of hot air contacting occupants and significantly improving driving comfort.

Description

Technical Field

[0001] This application relates to the field of heat dissipation technology, and in particular to a heat dissipation device and a vehicle. Background Technology

[0002] In motorcycles and other straddle-type vehicles, the heat dissipation performance of a water-cooled engine directly affects the vehicle's operational stability and riding experience. These vehicles typically have a radiator located in front of the engine, with a cooling fan positioned immediately behind it. This allows the fan to force air in low-wind conditions such as low-speed driving, traffic jams, or when the vehicle is stationary, thereby enhancing the radiator's heat exchange efficiency.

[0003] However, when the fan is running, the hot air drawn in from the radiator is confined by the narrow space between the engine and the radiator, and tends to rise and diffuse haphazardly after flowing over the engine surface. Especially at low speeds, without the suppressive effect of the driving airflow, the hot air rises upwards along the engine compartment and directly affects the areas where the vehicle's occupants are located, such as their legs and under the seats, creating a noticeable heat sensation and reducing the comfort of the vehicle's occupants. Utility Model Content

[0004] This application provides a heat dissipation device and a vehicle that can create turbulence on the mainstream airflow directly discharged by the fan, reducing the probability of hot air coming into contact with occupants and significantly improving driving comfort.

[0005] The first aspect of this application provides a heat dissipation device, disposed on a radiator of a vehicle, the heat dissipation device comprising:

[0006] The fan has an air inlet side facing the radiator and an air outlet side comprising a first part and a second part facing away from the radiator.

[0007] A fan cover is provided on the first part, and the second part is connected to the outside. The fan cover is provided with a first air guide structure, and the first air guide structure has an air outlet.

[0008] The fan is configured to drive external airflow through the radiator for heat exchange, and the first air guide structure is configured to split the airflow blown out by the fan so that the airflow after heat exchange is discharged through the air outlet and the second part respectively.

[0009] The air outlet is located in the upper outer periphery of the second part and is used to turbulent the airflow discharged through the second part.

[0010] In one embodiment, the fan cover includes a housing with an interior cavity formed therein, and the fan is housed in the interior cavity;

[0011] The first air guiding structure includes an air guiding channel and an air inlet and an air outlet located at both ends of the air guiding channel. The air inlet is located inside the cover cavity, and the air outlet is located on the side of the cover away from the cover cavity.

[0012] In one embodiment, the housing has an exhaust vent that exposes the second portion;

[0013] The air outlet is located in at least a portion of the outer peripheral region of the exhaust port and is configured to turbulent the airflow discharged through the exhaust port.

[0014] In one embodiment, at least a portion of the housing is recessed inward to form a notch, which is the vent.

[0015] The first air guide structure is located near the top of the housing, the exhaust port is located near the bottom of the housing, and the exhaust port of the first air guide structure faces downward.

[0016] In one embodiment, the number of the first air guiding structures includes a plurality of structures, which are arranged at intervals along the circumference of the exhaust port. The air outlets of the plurality of first air guiding structures are all arranged downward and turbulent the airflow discharged through different areas of the exhaust port.

[0017] In one embodiment, the housing is provided with air guide ribs, which are disposed between the first air guide structure and the exhaust port, and are configured to guide the airflow from the first air guide structure to the exhaust port.

[0018] In one embodiment, the number of air guide ribs includes a plurality of ribs, which are inclined in the direction from the first air guide structure to the exhaust port, and at least a portion of the adjacent air guide ribs are parallel.

[0019] In one embodiment, the second portion of the air outlet side is located near the top of the housing;

[0020] It also includes a second air guide structure, which is located near the bottom of the cover and has an air outlet facing upwards.

[0021] In one embodiment, the first air guide structure and the cover are integral; and / or, the middle region of the cover has a mounting hole for the hub of the fan to pass through or be accommodated in the mounting hole.

[0022] A second aspect of this application provides a vehicle, including a body, a frame, and a cooling device, wherein the frame is provided with a radiator, and the fan cover of the cooling device is disposed on the radiator.

[0023] The heat dissipation device and vehicle provided in this application divide the air outlet side of the fan into a first part and a second part, and provide a first air guide structure on the fan cover, so that the airflow after heat exchange is discharged through the air outlet and the second part respectively. By setting the air outlet in the outer peripheral area of ​​the second part, the discharged airflow can create turbulence on the mainstream airflow directly discharged from the second part, change the upward diffusion path of the hot air, reduce the probability of hot air coming into contact with the occupants, and significantly improve driving and riding comfort. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the vehicle structure provided in an embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the structure of a heat dissipation device provided in an embodiment of this application.

[0027] Figure 3 This is a schematic diagram of the heat dissipation device provided in an embodiment of this application from another perspective.

[0028] Figure 4 A simplified schematic diagram of the fan and fan cover of the heat dissipation device provided in the embodiments of this application.

[0029] Figure label:

[0030] 100. Heat dissipation device;

[0031] 110. Fan; 111. Inlet side; 112. Outlet side; 1121. First part; 1122. Second part;

[0032] 120. Fan cover; 121. Housing; 122. Connecting end;

[0033] 130. First air guiding structure; 131. Air inlet; 132. Air guiding channel; 133. Air outlet;

[0034] 140. Exhaust vent;

[0035] 150. Wind guide ribs;

[0036] 200. Vehicles;

[0037] 210. Chassis; 220. Engine; 230. Radiator. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0042] In motorcycles and other straddle-type vehicles, when the fan is running, the hot air drawn in from the radiator is confined by the narrow space between the engine and the radiator. After flowing over the engine surface, it tends to rise and diffuse haphazardly. Especially at low speeds, without the suppressive effect of the driving airflow, the hot air rises upwards along the engine compartment and directly affects the areas where the vehicle's occupants are located, such as their legs and under the seats, creating a noticeable heat sensation and reducing the comfort of the occupants.

[0043] To address the aforementioned issues, this application provides a heat dissipation device and a vehicle. By dividing the air outlet side of the fan into a first part and a second part, and providing a first air guide structure on the fan shroud, the heat-exchanged airflow is discharged through the air outlet and the second part, respectively. By positioning the air outlet on the outer periphery of the second part, the discharged airflow can create turbulence on the mainstream airflow directly discharged from the second part, altering the upward diffusion path of the hot air, reducing the probability of hot air contacting the occupants, and significantly improving driving comfort.

[0044] The following will combine Figure 1 The specific structure of the vehicle provided in the embodiments of this application will be described.

[0045] Reference Figure 1 As shown, this application embodiment provides a vehicle 200, including a frame 210, an engine 220, and a cooling device 100. A radiator 230 is disposed on the frame 210, and the cooling device 100 is disposed on the radiator 230. In this embodiment, a motorcycle is mainly used as an example for explanation.

[0046] For example, the engine 220 is equipped with a water cooling system, including components such as a water pump and a water jacket. The radiator 230 is connected to the water jacket of the engine 220 through two hoses. The inlet hose leads out from the outlet of the water jacket of the engine 220 and delivers the cooling water heated by the engine 220 during operation to the inlet of the radiator 230, which enters the cooling pipes inside the radiator 230. The outlet hose leads out from the outlet of the radiator 230 and sends the cooling water cooled by the radiator 230 back to the inlet of the water jacket of the engine 220, completing the cooling cycle.

[0047] For example, the radiator 230 is typically fixed to the front end of the frame 210 by a bracket, while the engine 220 is fixed to the middle of the frame 210 by bolts, and the two are flexibly connected by pipes.

[0048] For example, the fan of the heat dissipation device 100 is directly installed on the air outlet side (rear side) of the radiator 230 by bolts or clips, and the air inlet side of the fan is directly opposite the heat dissipation fins of the radiator 230, ensuring that the air flows directly into the fan after passing through the radiator 230.

[0049] The cooling principle of the motorcycle provided in this embodiment is as follows: When the vehicle 200 is traveling at high speed, outside air flows through the air intake (or natural wind) at the front of the vehicle body and passes through the air intake side of the radiator 230, where it exchanges heat with the cooling water in the radiator 230 pipes. The heated air is then naturally discharged from the rear side of the radiator 230 (where the fan is located). At this time, the fan does not need to be started, and cooling is achieved solely by the airflow from the vehicle. When the airflow from the vehicle is insufficient, the fan starts and draws air from the rear side of the radiator 230, forming a forced airflow path of "radiator 230 air intake side → cooling fins → fan air intake side → fan air outlet side → fan hood exhaust port".

[0050] The following will combine Figures 2 to 4 The specific structure of the heat dissipation device provided in the embodiments of this application will be described.

[0051] Reference Figures 2 to 4 The heat dissipation device 100 includes a fan 110 and a fan cover 120. The fan 110 includes an air inlet side 111 and an air outlet side 112. The air inlet side 111 faces the radiator 230. The air outlet side 112 includes a first part 1121 and a second part 1122 that are away from the radiator 230. The fan cover 120 covers the first part 1121 and the second part 1122 is connected to the outside.

[0052] For example, the fan 110 in this embodiment can be an axial flow fan.

[0053] The first part 1121 is located in the central area of ​​the fan 110 and is completely covered by the fan cover 120, forming a closed airflow channel. The second part 1122 surrounds the outer periphery of the first part 1121 and is directly connected to the external environment, serving as the exhaust path for the main airflow.

[0054] In this embodiment, refer to Figure 1 and Figure 2 As shown, a first air guide structure 130 may be provided on the fan cover 120, and the first air guide structure 130 has an air outlet 133; the fan 110 is configured to drive external airflow through the radiator 230 for heat exchange, and the first air guide structure 130 is configured to split the airflow blown out by the fan 110 so that the airflow after heat exchange is discharged through the air outlet 133 and the second part 1122 respectively.

[0055] Specifically, after the fan 110 is started, it generates negative pressure through the rotation of the blades, which draws in hot air and accelerates it to be discharged to the outlet side 112. The airflow of the first part 1121 enters the cover cavity of the fan cover 120 and is discharged directionally from the outlet 133 through the air guide channel 132 of the first air guide structure 130. The airflow of the second part 1122 is discharged directly from the outer periphery of the fan 110, forming the mainstream wind towards the rear of the vehicle 200.

[0056] The air outlet 133 is located in the upper outer periphery of the second part 1122 and is used to turbulent the airflow discharged through the second part 1122.

[0057] It should be noted that the air outlet 133 of the first air guiding structure 130 is located in the outer periphery of the second part 1122. The airflow discharged from it, such as the downward airflow, converges with the mainstream airflow of the second part 1122 in space. The difference in airflow speed and direction generates turbulence, which disrupts the laminar flow state of the mainstream airflow and causes it to diffuse towards the bottom or sides of the vehicle, preventing it from rising to the passenger area.

[0058] For example, the mainstream wind discharged in the first part 1121 can be referred to Figure 2 and Figure 3 As shown by arrow b, the airflow at outlet 133 can be referenced. Figure 2 and Figure 3 The direction indicated by the middle arrow 'a'.

[0059] For example, the positional relationship between the air outlet 133 and the outer periphery of the second part 1122 is not limited. For example, the air outlet 133 can be arranged around or to the side so that the turbulence effect covers the edge area of ​​the mainstream wind. The overall flow field changes are caused by local airflow disturbance, which improves the suppression effect of hot air upward diffusion compared with the traditional single exhaust design.

[0060] For example, the airflow from the air outlet 133 can be discharged downwards, while the mainstream airflow is discharged backwards. The downward airflow from the air outlet 133 and the backward mainstream airflow form a 90° angle turbulence, which helps to reduce the air temperature in the leg area of ​​the occupants and improve the comfort of the occupants.

[0061] For example, when the vehicle 200 is stationary or traveling at low speed, the fan 110 operates at full power. The air outlet 133 of the first air guide structure 130 and the second part 1122 work together to exhaust air, and the turbulence effectively suppresses the upward surge of hot air, ensuring that heat dissipation efficiency and occupant protection are achieved simultaneously. For example, when traveling at high speed, the airflow is naturally exhausted through the second part 1122, and the fan 110 can be stopped or run at low speed. At this time, the turbulence effect of the air outlet 133 is reduced.

[0062] Therefore, in this embodiment, by dividing the air outlet side 112 of the fan 110 into a first part 1121 and a second part 1122, and by providing a first air guide structure 130 on the fan cover 120, the airflow after heat exchange is discharged through the air outlet 133 and the second part 1122 respectively. By setting the air outlet 133 to be located in the outer peripheral area of ​​the second part 1122, the airflow discharged from it can create turbulence on the mainstream airflow directly discharged from the second part 1122, changing the upward diffusion path of the hot air, reducing the probability of hot air contacting the occupants, and significantly improving driving comfort.

[0063] In some embodiments, refer to Figure 2 and Figure 3 The fan cover 120 may include a housing 121, with a housing cavity formed inside the housing 121, and the fan 110 is housed within the housing cavity. (See reference...) Figure 4 As shown, the first air guiding structure 130 may include an air guiding channel 132 and an air inlet 131 and an air outlet 133 located at both ends of the air guiding channel 132. The air inlet 131 is located inside the enclosure cavity, and the air outlet 133 is located on the side of the cover 121 away from the enclosure cavity.

[0064] In this embodiment, the cover 121 is a hollow shell with an internal covering cavity. The cavity is adapted to the contour of the fan 110, and a small gap is maintained between the inner wall and the fan blades of the fan 110. This prevents the blades from touching the cover 121 and guides the airflow evenly to the first guide structure. For example, the cover 121 is connected to the radiator via the connecting end 122.

[0065] In this embodiment, the air inlet 131 is located at the top or side of the enclosure cavity, facing the air outlet direction of the first part 1121 of the fan 110, ensuring that the airflow discharged by the fan 110 can directly enter the air guide channel 132; the air outlet 133 is located on the side of the cover 121 away from the enclosure cavity (such as the top or side outer surface of the cover), and its direction is designed to be downward, sideways or oblique according to the heat dissipation requirements.

[0066] In this embodiment, the cover 121 and the first air guide structure 130 can be formed by an integrated injection molding process, without the need for additional assembly of components such as air guide plates, which reduces mold costs and assembly complexity, and reduces airflow leakage caused by gaps between parts.

[0067] In this embodiment, the inner wall of the air guide channel 132 can be designed as a smooth curved surface or a gradually expanding structure (such as the cross-sectional area of ​​the air outlet being larger than that of the air inlet), which can reduce the eddy current loss of airflow in the channel and reduce the high-frequency noise generated by turbulence.

[0068] In some embodiments, refer to Figure 2 and Figure 3 As shown, the housing 121 may have an exhaust port 140, which exposes a second portion 1122; wherein, the outlet 133 is located in at least a portion of the outer peripheral region of the exhaust port 140 and is configured to turbulent the airflow discharged through the exhaust port 140.

[0069] In this embodiment, the exhaust port 140 is an opening structure formed on the housing 121, and its position corresponds to the air outlet side 112 of the second part 1122 of the fan 110, so that the airflow discharged from the outer periphery of the fan 110 can flow directly to the external environment through the exhaust port 140. For example, the shape of the exhaust port 140 is usually arc-shaped or rectangular to ensure smooth airflow and avoid increased wind resistance due to an excessively small opening.

[0070] In this embodiment, the air outlet 133 surrounds the edge of the exhaust vent 140, for example, located at the top, sides, or upper half of the exhaust vent 140, forming a layout of "exhaust vent in the center and air outlet surrounding". When the fan 110 is running, the second part 1122 of airflow is directly discharged to the rear through the exhaust vent 140, while the airflow discharged from the air outlet 133 cuts into the edge of the mainstream wind from the outer periphery of the exhaust vent 140, generating turbulence through the difference in direction and velocity, forcing the mainstream wind to change its flow direction.

[0071] In some embodiments, refer to Figure 2 and Figure 3 As shown, at least a portion of the cover 121 is recessed inward to form a notch, which is an exhaust port 140; wherein, the first air guiding structure 130 is close to the top of the cover 121, the exhaust port 140 is close to the bottom of the cover 121, and the air outlet 133 of the first air guiding structure 130 faces downward.

[0072] For example, the bottom or lower half of the cover 121 is recessed inward, such as an arc or stepped recess, to form a notch structure, which directly serves as an exhaust port 140, exposing the air outlet side 112 of the second part 1122 of the fan 110.

[0073] In this embodiment, refer to Figure 2 and Figure 3 As shown, the first air guiding structure 130 is located in the top region of the casing 121, with its air outlet 133 pointing vertically downwards; the exhaust port 140 is located in the bottom region of the casing 121, forming a vertically staggered arrangement with the air outlet 133. When the fan 110 is running, the first air guiding structure 130 at the top discharges the central airflow downwards, while the exhaust port 140 at the bottom discharges the peripheral airflow backwards. The two airflows converge in the space outside the casing 121, forming a cross-shaped turbulence field of "upward flow and downward discharge".

[0074] In some embodiments, refer to Figure 2 and Figure 3 As shown, the number of first air guiding structures 130 may include multiple structures, which are arranged at intervals along the circumference of the exhaust port 140. The multiple first air guiding structures 130 turbulent the airflow discharged through different areas of the exhaust port 140.

[0075] In this embodiment, each first air guiding structure 130 includes an independent air guiding channel 132, an air inlet 131 and an air outlet 133. Multiple first air guiding structures 130 are evenly or non-uniformly distributed along the circumference of the exhaust port 140, covering the upper half or the entire circumference of the exhaust port 140.

[0076] In this embodiment, the air outlets 133 of all the first air guiding structures 130 are set downward to ensure that the direction of the exhaust airflow is consistent. When the fan 110 is running, the second part 1122 airflow is discharged through the exhaust port 140 to form the mainstream airflow, while the air outlets 133 of the multiple first air guiding structures 130 discharge the diverted airflow downward respectively. Each diverted airflow acts precisely on different areas of the mainstream airflow, and the mainstream airflow is comprehensively interfered with through multi-point turbulence, forcing the hot air to diffuse to the bottom or side of the vehicle.

[0077] By setting up multiple primary air guiding structures 130, multi-point turbulence causes the mainstream airflow to form multiple vortices, significantly increasing the contact area between the airflow and the outside air and accelerating heat exchange. At the same time, when the vehicle 200 is at low speed or stationary, multiple sets of air outlets 133 simultaneously discharge high-speed diverted airflow, creating strong interference with the mainstream airflow, effectively suppressing hot air rising, and improving passenger comfort.

[0078] In some embodiments, refer to Figure 2 and Figure 3 As shown, the cover 121 may be provided with air guide ribs 150. The air guide ribs 150 are located between the first air guide structure 130 and the exhaust port 140, and are configured to guide the airflow from the first air guide structure 130 to the exhaust port 140.

[0079] For example, the air guide rib 150 can be a strip-shaped protrusion structure, and the cross-section can be triangular, trapezoidal, or arc-shaped. This embodiment does not limit this. For example, the direction of the air guide rib 150 matches the relative position of the air outlet 133 and the exhaust outlet 140, for example, by adopting an inclined or arc-shaped design, so that the diverted air cuts into the mainstream air at a small angle, enhancing the turbulence effect while reducing energy loss.

[0080] When the fan 110 is running, the diverted air discharged from the first air guide structure 130 and the mainstream air discharged from the exhaust port 140 have different flow rates and directions. The air guide rib 150 can guide the diverted air along a specific path to the mainstream air area, so as to promote the orderly convergence of the two airflows and avoid turbulent collision.

[0081] By setting the air guide rib 150, the air guide rib 150 can also serve as a reinforcing rib of the cover 121, improving the deformation resistance of the cover 121, reducing abnormal noises caused by resonance of the cover 121 under the action of vehicle 200 vibration or wind pressure, and reducing the risk of cracking caused by external force.

[0082] In some embodiments, refer to Figure 2 and Figure 3 As shown, the number of air guide ribs 150 may include multiple ones. From the first air guide structure 130 to the exhaust port 140, multiple air guide ribs 150 are arranged at an angle, and at least a portion of the adjacent air guide ribs 150 are parallel.

[0083] In this embodiment, the tilt angle of the air guide rib 150 is not limited. For example, the air guide rib 150 is arranged at an angle along the direction from the first air guide structure 130 to the exhaust port 140, and the tilt angle can be between 15-45° to ensure that the airflow flows in an orderly manner along a specific path.

[0084] Therefore, when the diverted airflow discharged from the first air guiding structure 130 flows towards the exhaust port 140, the inclined air guiding ribs 150 decompose it into multiple parallel airflows, which flow directionally along the channels between the air guiding ribs 150. By setting some of the air guiding ribs 150 parallel, the resulting guiding channels constrain the airflow, allowing the diverted airflow to cut into the mainstream airflow discharged from the exhaust port 140 at a stable speed, achieving precise turbulence and preventing unnecessary airflow diffusion.

[0085] In some embodiments, the second portion 1122 of the air outlet side 112 near the top of the housing 121 may also include a second air guide structure near the bottom of the housing 121, with the air outlet 133 of the second air guide structure facing upward.

[0086] It is understandable that the exhaust vent 140 is located near the top of the cover 121. Therefore, a second air guide structure with an upward opening can be set at the bottom of the cover 121 to achieve turbulence of the mainstream airflow.

[0087] In the second part 1122 of the air outlet side 112 of the fan 110, an open exhaust port 140 is retained near the top of the cover 121. At the same time, a second air guide structure is added to the bottom of the cover 121. Similarly, the second air guide structure includes an independent air guide channel 132, an air inlet 131 and an air outlet 133.

[0088] When the fan 110 is running, the mainstream air of the second part 1122 is discharged to the rear from the top open exhaust port. At the same time, the second air guide structure at the bottom draws in some airflow through the air inlet 131, accelerates it through the air guide channel 132 and discharges it upward. The upward airflow and the mainstream airflow discharged to the rear from the top converge in the space, forcing the mainstream airflow to change its direction and diffuse to the bottom or side of the vehicle, preventing hot air from flowing to the upper passenger area.

[0089] In some embodiments, the first air guide structure 130 and the housing 121 may be a single piece.

[0090] For example, the first air guide structure 130 and the cover 121 can be made into a single piece by an integral molding process. For instance, the first air guide structure 130 and the cover 121 can be molded by injection molding or die casting, which helps to eliminate the seams and gaps of separate assembly, forming a continuous and smooth airflow channel. This, in turn, makes the airflow channel inside the first air guide structure 130 smoother, reduces eddies and wind resistance, and improves exhaust efficiency.

[0091] In this embodiment, the middle area of ​​the cover 121 may be provided with a mounting hole, which is used for the hub of the fan 110 to pass through or be accommodated in the mounting hole.

[0092] By setting mounting holes, the fan 110 can be quickly assembled and disassembled, achieving the dual goals of airflow guidance and precise assembly. It also provides support for the fan 110, improving the assembly stability of the fan 110 and ensuring its smooth operation.

[0093] This embodiment provides a heat dissipation device and a vehicle. By dividing the air outlet side of the fan into a first part and a second part, and setting a first air guide structure on the fan cover, the airflow after heat exchange is discharged through the air outlet and the second part respectively. By setting the air outlet in the outer peripheral area of ​​the second part, the discharged airflow can create turbulence on the mainstream airflow directly discharged from the second part, changing the upward diffusion path of the hot air, reducing the probability of hot air coming into contact with the occupants, and significantly improving driving and riding comfort.

[0094] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A heat dissipating device, characterized by, The radiator is installed in the vehicle, and the heat dissipation device includes: The fan has an air inlet side facing the radiator and an air outlet side comprising a first part and a second part facing away from the radiator. A fan cover is provided on the first part, and the second part is connected to the outside. The fan cover is provided with a first air guide structure, and the first air guide structure has an air outlet. The fan is configured to drive external airflow through the radiator for heat exchange, and the first air guide structure is configured to split the airflow blown out by the fan so that the airflow after heat exchange is discharged through the air outlet and the second part respectively. The air outlet is located in the upper outer periphery of the second part and is used to turbulent the mainstream airflow discharged through the second part.

2. The heat dissipating device according to claim 1, wherein The fan cover includes a housing, and a housing cavity is formed inside the housing, in which at least a portion of the fan is housed; The first air guiding structure includes an air guiding channel and an air inlet and an air outlet located at both ends of the air guiding channel. The air inlet is located inside the cover cavity, and the air outlet is located on the side of the cover away from the cover cavity.

3. The heat dissipation device according to claim 2, characterized in that, The cover has an exhaust vent, which exposes the second part; The air outlet is located in at least a portion of the outer peripheral region of the exhaust port and is configured to turbulent the airflow discharged through the exhaust port.

4. The heat dissipation device according to claim 3, characterized in that, At least a portion of the cover is recessed inward to form a notch, which is the exhaust vent; The first air guide structure is located near the top of the housing, the exhaust port is located near the bottom of the housing, and the exhaust port of the first air guide structure faces downward.

5. The heat dissipation device according to claim 4, characterized in that, The number of the first air guiding structures includes multiple structures, which are arranged at circumferential intervals along the exhaust port. The multiple first air guiding structures are configured to turbulent the airflow discharged through different areas of the exhaust port.

6. The heat dissipation device according to any one of claims 3-5, characterized in that, The cover is provided with air guide ribs, which are located between the first air guide structure and the exhaust port, and are configured to guide the airflow from the first air guide structure to the exhaust port.

7. The heat dissipation device according to claim 6, characterized in that, The number of air guide ribs includes multiple ribs. From the first air guide structure to the exhaust port, the multiple air guide ribs are inclined, and at least a portion of the adjacent air guide ribs are parallel.

8. The heat dissipation device according to any one of claims 2-5, characterized in that, The second part of the air outlet side is close to the top of the casing; It also includes a second air guide structure, which is located near the bottom of the cover and has an air outlet facing upwards.

9. The heat dissipation device according to claim 2, characterized in that, The first air guide structure and the cover are integral parts; and / or, the middle area of ​​the cover is provided with a mounting hole, which is used for the hub of the fan to pass through or be accommodated in the mounting hole.

10. A vehicle comprising a frame, an engine, a radiator, and a cooling device according to any one of claims 1-9, characterized in that, The radiator is mounted on the vehicle frame, and the fan cover of the heat dissipation device is mounted on the radiator.

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