Engine heat dissipation assembly and vehicle

Abstract

The utility model discloses an engine heat dissipation assembly and a vehicle, the engine heat dissipation assembly comprises: a fan assembly, which comprises a fan support and a fan, the fan is rotatably connected with the fan support; the transmission assembly is arranged on the fan support and comprises a driving wheel, the driving wheel is used for driving the fan to rotate, and a first flange is arranged on the side, facing an engine crankshaft, of the driving wheel; a second flange is arranged on the engine crankshaft, one end of the rubber belt assembly is connected with the second flange, and the other end of the rubber belt assembly is connected with the first flange, so that the driving wheel and the engine crankshaft are connected. The engine crankshaft and the driving wheel are in transmission connection through the rubber belt assembly, the rubber belt assembly can absorb vibration of the engine crankshaft, and the vibration is prevented from being transmitted to the fan assembly through the driving wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an engine cooling assembly and a vehicle. Background Art

[0002] The automotive cooling fan system is the core of the engine cooling module, and its cooling capacity determines the vehicle driving environment. Today, there are two basic forms of automotive cooling system fan assemblies: one is an electronic fan, and the other is a silicone oil fan. Off-road vehicles generally use silicone oil fans, while passenger cars generally use electronic fans.

[0003] The cooling system of a passenger car is generally an electronic fan. The electronic fan is not limited by the engine speed. The speed increases or decreases according to the engine water temperature. The power of common electronic fans is basically 400W-850W, which is sufficient for urban passenger car working conditions.

[0004] The air intake of the electronic fan of off-road vehicles under special working conditions with high load is far from enough. In order to solve the problem of insufficient heat dissipation under high load, the OEM generally equips the off-road vehicles with silicone oil fans as standard. Silicone oil fans can solve the problem of insufficient heat dissipation under high load, but they cannot solve the problem of high water temperature caused by long-term driving at low speed or idling.

[0005] In related technologies, the off-road intensity of off-road vehicles is getting higher and higher. If the heat dissipation is insufficient under special working conditions, the engine water temperature will overheat. Generally, when the temperature exceeds 115°C, the engine self-protection function will be activated. At this time, the engine will lose most of its power, seriously affecting driving safety and driving experience. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an engine heat dissipation assembly, in which the engine crankshaft and the driving wheel are connected through a rubber belt transmission, and the rubber belt can absorb the vibration of the engine crankshaft to prevent the vibration from being transmitted to the fan assembly through the driving wheel.

[0007] The utility model also provides a vehicle.

[0008] According to the engine heat dissipation assembly of the embodiment of the utility model, it includes: a fan assembly, including: a fan bracket and a fan, the fan is rotatably connected to the fan bracket; a transmission assembly, the transmission assembly is arranged on the fan bracket, the transmission assembly includes: a driving wheel, the driving wheel is used to drive the fan to rotate, and the driving wheel is provided with a first flange on the side facing the engine crankshaft; a rubber belt assembly, the engine crankshaft is provided with a second flange, one end of a plurality of the rubber belts is connected to the second flange and the other end is connected to the first flange, so that the driving wheel and the engine crankshaft.

[0009] According to the engine heat dissipation assembly of the embodiment of the utility model, the engine crankshaft and the driving wheel are connected through a rubber belt transmission. The rubber belt can absorb the vibration of the engine crankshaft to prevent the vibration from being transmitted to the fan assembly through the driving wheel.

[0010] According to some embodiments of the present invention, the rubber belt assembly includes: a plurality of rubber belts, the plurality of rubber belts are arranged at intervals from each other, one end of the plurality of rubber belts are connected to the second flange and the other end of the plurality of rubber belts are connected to the first flange.

[0011] According to some embodiments of the utility model, the transmission assembly also includes: a driven wheel and a belt, the driven wheel is drivingly connected to the fan, the driving wheel and the driven wheel are respectively connected with a coaxial first pulley and a second pulley, the first pulley and the second pulley are connected by a belt transmission, so that the driving wheel and the driven wheel are drivingly connected.

[0012] According to some embodiments of the utility model, the engine cooling assembly also includes: a control component, which is arranged on the fan bracket, and the control component is used to adjust the first pulley and the second pulley, change the speed ratio of the driving pulley and the driven pulley, so as to adjust the rotation speed of the fan.

[0013] According to some embodiments of the utility model, the control component includes: an active motor, which is connected to the first pulley for driving to adjust the rotation radius of the first pulley; and a driven motor, which is connected to the second pulley for driving to adjust the rotation radius of the second pulley.

[0014] According to some embodiments of the present invention, the control component further includes: a controller, wherein the controller is electrically connected to the driving motor and the driven motor to adjust the speed ratio of the driving wheel and the driven wheel.

[0015] According to some embodiments of the present invention, the control component also includes: a temperature sensor, which measures the engine water temperature; a speed sensor, which measures the engine speed; and the controller is electrically connected to the temperature sensor and the speed sensor and controls the operation of the active motor and the driven motor according to the engine water temperature and the engine speed.

[0016] According to some embodiments of the utility model, the fan includes: fan blades and a rotating shaft, the rotating shaft is rotatably connected to the fan bracket, and the rotating shaft is transmission-connected to the driven wheel.

[0017] According to some embodiments of the utility model, a coaxial driving wheel is provided on the rotating shaft, and the driving wheel is meshed with the driven wheel.

[0018] According to some embodiments of the utility model, the engine heat dissipation assembly further includes: a connecting member, one end of which is rotatably connected to the rotating shaft and the other end of which is fixedly connected to the fan bracket.

[0019] The vehicle according to the second aspect of the present utility model comprises: the engine heat dissipation assembly; an engine, on which the engine crankshaft is arranged, and the engine heat dissipation assembly is used to dissipate heat from the engine.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a structural schematic diagram of an engine heat dissipation assembly according to an embodiment of the utility model;

[0023] Figure 2 is a cross-sectional view of an engine heat dissipation assembly according to an embodiment of the utility model;

[0024] Figure 3 is a side view of an engine heat dissipation assembly according to an embodiment of the utility model;

[0025] Figure 4 It is a schematic diagram of the connection between the engine crankshaft, the transmission assembly and the control assembly in one direction according to an embodiment of the utility model;

[0026] Figure 5 It is a schematic diagram of the connection between the engine crankshaft, the transmission assembly and the control assembly in another direction according to an embodiment of the utility model;

[0027] Figure 6 It is a schematic diagram of the connection between the transmission assembly and the fan assembly according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] 100. Engine cooling assembly;

[0030] 10. fan assembly; 11. fan bracket; 12. fan; 121. fan blades; 122. rotating shaft; 123. driving wheel;

[0031] 20. Transmission assembly; 21. Driving wheel; 211. First pulley; 22. Driven wheel; 221. Second pulley; 23. Belt; 24. First flange;

[0032] 30. Control component; 31. Active motor; 32. Driven motor; 33. Controller;

[0033] 40. Engine; 41. Engine crankshaft; 411. Second flange; 42. Rubber belt assembly; 43. Connector. DETAILED DESCRIPTION

[0034] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0035] Reference below Figure 1-Figure 6 An engine cooling assembly 100 according to an embodiment of the present invention is described, and a vehicle including the engine cooling assembly 100 is also provided.

[0036] The engine heat dissipation assembly 100 includes a fan assembly 10 and a transmission assembly 20. The fan assembly 10 includes a fan bracket 11 and a fan 12. The fan 12 is rotatably connected to the fan bracket 11. The fan 12 can rotate relative to the fan bracket 11. When the fan 12 rotates, the engine 40 can be cooled to prevent the engine 40 from being overheated.

[0037] Combination Figure 1-Figure 6 As shown, the transmission assembly 20 is arranged on the fan bracket 11, and the transmission assembly 20 includes: a driving wheel 21, and the driving wheel 21 is drivingly connected to the fan 12. That is, the driving wheel 21 is drivingly connected to the engine crankshaft 41, the driving wheel 21 rotates synchronously with the engine crankshaft 41, and the speed of the driving wheel 21 is the same as that of the engine crankshaft 41. The driven wheel 22 is drivingly connected to the fan 12, and the driven wheel 22 drives the fan 12 to rotate.

[0038] Reference Figure 2-Figure 6 As shown, the engine cooling assembly 100 further includes: a rubber belt assembly 42, the rubber belt assemblies 42 are arranged at intervals, a second flange 411 is arranged on the engine crankshaft 41, a first flange 24 is arranged on the side of the driving wheel 21 facing the engine crankshaft 41, one end of the rubber belt assembly 42 is connected to the second flange 411 and the other end is connected to the first flange 24. Specifically, the driving wheel 21 is connected to the first flange 24, the first flange 24 is connected to the driving wheel 21 by transmission and rotates synchronously; the second flange 411 is arranged on the engine crankshaft 41, the second flange 411 is connected to the engine crankshaft 41 by transmission and rotates synchronously, the second flange 411 and the first flange 24 are connected by transmission through the rubber belt assembly 42, and the second flange 411 rotates synchronously with the first flange 24, then the driving wheel 21 and the engine crankshaft 41 can rotate synchronously, the engine crankshaft 41 provides power for the driving wheel 21, and the driving wheel 21 cooperates with the driven wheel 22 to provide driving force for the fan 12.

[0039] The engine cooling assembly 100 further includes: a plurality of rubber belts, which are arranged at intervals from each other, and one end of the plurality of rubber belts 42 is connected to the second flange 411 and the other end is connected to the first flange 24 .

[0040] The rubber belt assembly 42 is connected between the driving wheel 21 and the engine crankshaft 41 and is used for transmission connection. One end of the rubber belt assembly 42 is connected to the engine crankshaft 41, and the other end of the rubber belt assembly 42 is connected to the driving wheel 21, so that the rubber belt assembly 42 is transmission-connected to the engine crankshaft 41 and the driving wheel 21, so that the engine crankshaft 41 and the driving wheel 21 are transmission-connected, the engine crankshaft 41 and the driving wheel 21 are softly connected, and the rubber belt assembly 42 can absorb the vibration of the engine crankshaft 41 to prevent the vibration from being transmitted to the fan assembly 10 through the driving wheel 21.

[0041] Thus, the engine crankshaft 41 and the driving wheel 21 are flexibly connected via the rubber belt 42 , and the rubber belt assembly 42 can absorb the vibration of the engine crankshaft 41 to prevent the vibration from being transmitted to the fan assembly 10 through the driving wheel 21 .

[0042] Further, the rubber belt assembly 42 includes: a plurality of rubber belts, the plurality of rubber belts are arranged at intervals from each other, one end of the plurality of rubber belts is connected to the second flange 411 and the other end is connected to the first flange 24. The plurality of rubber belts are connected between the driving wheel 21 and the engine crankshaft 41 and are used for transmission connection, one end of the rubber belt is connected to the engine crankshaft 41, and the other end of the rubber belt is connected to the driving wheel 21, then the rubber belt transmission connection between the engine crankshaft 41 and the driving wheel 21 makes the engine crankshaft 41 and the driving wheel 21 transmission connection, the engine crankshaft 41 and the driving wheel 21 are softly connected, and the rubber belt can absorb the vibration of the engine crankshaft 41 to prevent the vibration from being transmitted to the fan assembly 10 through the driving wheel 21. The plurality of rubber belts ensure the reliability of the connection between the first flange 24 and the second flange 411, so that the driving wheel 21 can rotate synchronously with the engine crankshaft 41.

[0043] Combination Figure 1-Figure 6 As shown, the transmission assembly 20 is arranged on the fan bracket 11, and the transmission assembly 20 also includes: a driven wheel 22 and a belt 23, the driving wheel 21 is connected to the engine crankshaft 41, the driving wheel 21 rotates synchronously with the engine crankshaft 41, and the speed of the driving wheel 21 is the same as that of the engine crankshaft 41; the driven wheel 22 is connected to the fan 12. When the driven wheel 22 is connected to the fan 12, the driven wheel 22 drives the fan 12 to rotate.

[0044] like Figure 4 and Figure 5As shown, the driving wheel 21 and the driven wheel 22 are respectively connected with a coaxial first pulley 211 and a second pulley 221, and the first pulley 211 and the second pulley 221 are connected by a belt 23. Specifically, the driving wheel 21 is provided with a first pulley 211, and the first pulley 211 rotates coaxially with the driving wheel 21, and the driven wheel 22 is provided with a second pulley 221, and the second pulley 221 rotates coaxially with the driven wheel 22. The belt 23 is wound around the outer periphery of the first pulley 211 and the second pulley 221, and the first pulley 211 and the second pulley 221 are connected by the belt 23. The radius of the first pulley 211 and the second pulley 221 is adjustable to change the speed ratio of the driving wheel 21 and the driven wheel 22, so as to achieve stepless speed regulation, thereby ensuring that the water temperature of the engine 40 is kept in the best constant temperature state, and the cooling effect of the engine 40 can be maintained regardless of the vehicle's extreme off-road or urban congestion conditions, and the driver will not be unable to continue driving the vehicle due to the high water temperature of the engine 40.

[0045] according to Figure 1-Figure 3 As shown, the control component 30 is arranged on the fan bracket 11, and the control component 30 is used to adjust the first pulley 211 and the second pulley 221, change the speed ratio of the driving wheel 21 and the driven wheel 22, so as to adjust the speed of the fan 12. That is to say, the control component 30 is arranged on the fan bracket 11, and the control component 30 can adjust the radius of the first pulley 211 and the radius of the second pulley 221 to change the speed ratio of the driving wheel 21 and the driven wheel 22, so as to adjust the speed of the fan 12. When the water temperature of the engine 40 is low, the control component 30 reduces the speed ratio of the driving wheel 21 and the driven wheel 22, and reduces the speed of the fan 12 until the water temperature of the engine 40 meets the requirement; when the water temperature of the engine 40 is too high, the motor controller 33 will increase the speed of the fan 12 to reduce the water temperature of the engine 40.

[0046] Therefore, the control component 30 adjusts the rotation radius of the first pulley 211 and the second pulley 221. When the speed of the engine 40 is constant, the speed ratio of the driving wheel 21 and the driven wheel 22 is changed, and the speed of the fan 12 is adjusted to meet the heat dissipation requirements of the engine 40 under different working conditions.

[0047] like Figure 3-Figure 5As shown, the control assembly 30 includes: a driving motor 31 and a driven motor 32, the driving motor 31 is drivingly connected to the first pulley 211 to adjust the rotation radius of the first pulley 211; the driven motor 32 is drivingly connected to the second pulley 221 to adjust the rotation radius of the second pulley 221. Specifically, the driving motor 31 is drivingly connected to the first pulley 211, and the driving motor 31 can drive the first pulley 211 to move to change the rotation radius of the first pulley 211, and the driven motor 32 is drivingly connected to the second pulley 221, and the driven motor 32 can drive the second pulley 221 to change the rotation radius of the second pulley 221, and the speed ratio of the driving wheel 21 and the driven wheel 22 changes accordingly.

[0048] like Figure 1 and Figure 3 As shown, the control assembly 30 further includes: a controller 33, which is electrically connected to the active motor 31 and the driven motor 32 to adjust the speed ratio of the active wheel 21 and the driven wheel 22. That is, the controller 33 sends a control signal to control the operation of the active motor 31 and the driven motor 32 to adjust the rotation radius of the first pulley 211 and the second pulley 221, thereby changing the speed ratio of the active wheel 21 and the driven wheel 22, so that when the speed of the engine 40 is constant, the speed of the fan 12 can also be adjusted to make the water temperature of the engine 40 meet the requirements.

[0049] In some embodiments, the control component 30 further includes: a temperature sensor and a speed sensor, the temperature sensor measures the water temperature of the engine 40, and the speed sensor measures the rotation speed of the engine 40. The controller 33 is electrically connected to the temperature sensor and the speed sensor, and controls the operation of the active motor 31 and the driven motor 32 according to the water temperature of the engine 40 and the rotation speed of the engine 40. That is, the temperature sensor collects information about the water temperature of the engine 40, and the speed sensor collects information about the rotation speed of the engine 40. Since the controller 33 is electrically connected to the temperature sensor and the speed sensor, the information about the water temperature of the engine 40 and the rotation speed of the engine 40 is transmitted to the controller 33. The controller 33 controls the operation of the active motor 31 and the driven motor 32 according to the water temperature of the engine 40 and the real-time rotation speed of the engine 40, that is, adjusts the rotation radius of the first pulley 211 and the second pulley 221, thereby changing the speed ratio of the active wheel 21 and the driven wheel 22 to adjust the rotation speed of the fan 12.

[0050] like Figure 5 and Figure 6As shown, the fan 12 includes: a fan blade 121 and a rotating shaft 122, the rotating shaft 122 is rotatably connected to the fan bracket 11, and the rotating shaft 122 is transmission-connected to the driven wheel 22. Specifically, the fan blade 121 is fixedly connected to the rotating shaft 122, and when the rotating shaft 122 rotates, the fan blade 121 rotates with the rotating shaft 122. The rotating shaft 122 is rotatably connected to the fan bracket 11, and the rotating shaft 122 is transmission-connected to the driven wheel 22. The engine crankshaft 41 transmits power to the driving wheel 21, the driving wheel 21 is meshed with the driven wheel 22, the driven wheel 22 rotates, and the rotating shaft 122 is transmission-connected to the driven wheel 22, and the rotating shaft 122 rotates with the driven wheel 22.

[0051] like Figure 4-Figure 6 As shown, a coaxial driving wheel 123 is provided on the rotating shaft 122, and the driving wheel 123 is meshed with the driven wheel 22. Specifically, the rotating shaft 122 and the driving wheel 123 are coaxially arranged and transmission-connected, the engine crankshaft 41 transmits power to the driving wheel 21, the driving wheel 21 is transmission-connected with the driven wheel 22, the control component 30 drives the driving motor 31 and the driven motor 32 to adjust the speed ratio of the driving wheel 21 and the driven wheel 22, then the driven wheel 22 rotates with the driving wheel 21, and the speed of the driven wheel 22 is inconsistent with that of the driving wheel 21; the driving wheel 123 is meshed with the driven wheel 22, then the driving wheel 123 rotates, thereby driving the rotating shaft 122 to rotate, that is, the fan 12 rotates.

[0052] like Figure 4-Figure 6 As shown, the engine cooling assembly 100 further includes: a connecting member 43, one end of which is rotatably connected to the rotating shaft 122 and the other end of which is fixedly connected to the fan bracket 11. Specifically, the connecting member 43 is perpendicular to the axial direction of the rotating shaft 122, the other end of the connecting member 43 is fixedly connected to the fan bracket 11, and one end of the connecting member 43 is rotatably connected to the rotating shaft 122, so that the rotating shaft 122 can rotate relative to the connecting member 43, that is, the fan 12 is rotatably connected to the fan bracket 11.

[0053] The vehicle according to the second embodiment of the utility model includes: an engine cooling assembly 100; an engine 40, an engine crankshaft 41 is arranged on the engine 40, and the engine cooling assembly 100 is used to cool the engine 40. Specifically, the engine 40 is arranged on the engine crankshaft 41, the engine crankshaft 41 is connected to the driving wheel 21 through a rubber belt 42, the driving wheel 21 is connected to the driven wheel 22 through a belt 23, and the driven wheel 22 is meshed with the driving wheel 123, thereby driving the fan 12 to rotate to cool the engine 40. The control component 30 can adjust the speed ratio of the driving wheel 21 and the driven wheel 22.

[0054] When the water temperature of the engine crankshaft 41 is high, a higher heat dissipation performance is required, and the controller 33 drives the active motor 31 and the driven motor 32 to adjust the first pulley 211 and the second pulley 221, increase the speed ratio of the active pulley 21 and the driven pulley 22, increase the rotation speed of the fan 12, improve the heat dissipation performance, and avoid the water temperature of the engine 40 being too high; when the water temperature of the engine 40 is low, the controller 33 drives the active motor 31 and the driven motor 32 to adjust the first pulley 211 and the second pulley 221, reduce the speed ratio of the active pulley 21 and the driven pulley 22, reduce the rotation speed of the fan 12, and avoid the water temperature of the engine 40 being too low.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An engine cooling assembly, characterized in that: include: A fan assembly (10) comprises: a fan bracket (11) and a fan (12), wherein the fan (12) is rotatably connected to the fan bracket (11); A transmission assembly (20), the transmission assembly (20) being arranged on the fan bracket (11), the transmission assembly (20) comprising: a driving wheel (21), the driving wheel (21) being used to drive the fan (12) to rotate, a first flange (24) being arranged on a side of the driving wheel (21) facing the engine crankshaft (41); A rubber belt assembly (42), wherein a second flange (411) is provided on the engine crankshaft (41), one end of the rubber belt assembly (42) is connected to the second flange (411) and the other end is connected to the first flange (24), so as to connect the driving wheel (21) and the engine crankshaft (41).

2. The engine cooling assembly according to claim 1, characterized in that: The rubber belt assembly comprises: a plurality of rubber belts, the plurality of rubber belts being arranged at intervals from each other, one end of each of the rubber belts being connected to the second flange (411) and the other end of each of the rubber belts being connected to the first flange (24).

3. The engine cooling assembly according to claim 1, characterized in that: The transmission assembly (20) further comprises: a driven wheel (22) and a belt (23); the driven wheel (22) is in transmission connection with the fan (12); the driving wheel (21) and the driven wheel (22) are respectively connected to a coaxial first belt pulley (211) and a second belt pulley (221); the first belt pulley (211) and the second belt pulley (221) are in transmission connection with each other via the belt (23), so that the driving wheel (21) and the driven wheel (22) are in transmission connection with each other.

4. The engine cooling assembly according to claim 3, characterized in that: Also includes: A control component (30), the control component (30) being arranged on the fan bracket (11), the control component (30) being used to adjust the first belt pulley (211) and the second belt pulley (221), changing the speed ratio between the driving pulley (21) and the driven pulley (22), so as to adjust the rotation speed of the fan (12).

5. The engine cooling assembly according to claim 4, characterized in that: The control component (30) comprises: An active motor (31), the active motor (31) being drivingly connected to the first belt pulley (211) so as to adjust the rotation radius of the first belt pulley (211); A driven motor (32), the driven motor (32) being drivingly connected to the second belt pulley (221) to adjust the rotation radius of the second belt pulley (221).

6. The engine cooling assembly according to claim 5, characterized in that: The control component (30) further comprises: a controller (33), wherein the controller (33) is electrically connected to the driving motor (31) and the driven motor (32) to adjust the speed ratio of the driving wheel (21) and the driven wheel (22).

7. The engine cooling assembly according to claim 6, characterized in that: The control component (30) further comprises: a temperature sensor, the temperature sensor measuring the water temperature of the engine (40); a speed sensor, the speed sensor measuring the rotational speed of the engine (40); and The controller (33) is electrically connected to the temperature sensor and the speed sensor and controls the operation of the driving motor (31) and the driven motor (32) according to the water temperature of the engine (40) and the rotation speed of the engine (40).

8. The engine cooling assembly according to claim 3, characterized in that: The fan (12) comprises: fan blades (121) and a rotating shaft (122); the rotating shaft (122) is rotationally connected to the fan bracket (11); and the rotating shaft (122) is transmission-connected to the driven wheel (22).

9. The engine cooling assembly according to claim 8, characterized in that: A coaxial driving wheel (123) is provided on the rotating shaft (122), and the driving wheel (123) is meshed with the driven wheel (22).

10. A vehicle, characterized in that: include: An engine heat dissipation assembly (100) as claimed in any one of claims 1 to 9; an engine (40), wherein the engine (40) is provided with the engine crankshaft (41), and the engine heat dissipation assembly is used to dissipate heat from the engine (40).

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