A heat dissipation device and an engine

Abstract

This utility model discloses a heat dissipation device and an engine, relating to the field of engine structure technology. The heat dissipation device includes: a housing containing a heat-generating component; a water-cooling component disposed within the housing, used to absorb the heat emitted by the heat-generating component; and a shaped fan structure disposed within the housing, used to blow air into the housing and improve the heat dissipation efficiency of the water-cooling component. The shaped fan structure includes a blade root end and a blade tip end, with the width of the shaped fan structure gradually increasing from the blade tip end to the blade root end. The heat dissipation device and engine provided by this application can cool the heat-generating component using water cooling, and the shaped fan structure can improve the heat dissipation efficiency of both the water-cooling component and the heat-generating component through air cooling. The gradually increasing width of the shaped fan structure from the blade tip end to the blade root end avoids interference between the shaped fan structure and the water-cooling component, increasing the cooling airflow within a limited space, reducing the overall size, and effectively lowering costs.

Description

Technical Field

[0001] This utility model relates to the field of engine structure technology, and more specifically, to a heat dissipation device. Furthermore, this utility model also relates to an engine including the aforementioned heat dissipation device. Background Technology

[0002] With the diversification of urban travel scenarios and the deepening trend of consumption upgrading, small-displacement scooter motorcycles are transforming from basic transportation tools to high-performance mobility vehicles. Users' demands for these vehicles have expanded from basic commuting functions to a comprehensive user experience, placing higher requirements on power and operational reliability. Against this backdrop, improving power performance necessitates increasing the engine's maximum power, which means a more sophisticated cooling system design is needed to handle high-heat operating conditions.

[0003] Small-displacement scooter water-cooled engines use a water pump to drive coolant circulation, with heat exchange achieved through a combination of a radiator and a fan. In existing technologies, the radiator water chamber frame is constrained by the overall vehicle structure, resulting in limited installation space and necessitating a fan design with a diameter matching the water chamber frame. However, this presents the following technical bottlenecks under high heat load conditions:

[0004] 1. To increase the cooling airflow, the conventional technical solution is to increase the fan diameter, but due to space constraints, this will cause interference between the fan and the water chamber frame dimensions.

[0005] 2. If the size of the heat sink assembly is increased, the matching installation structure needs to be redesigned, which will increase the material cost.

[0006] In conclusion, how to increase cooling airflow within a limited space is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] In view of this, the purpose of this utility model is to provide a heat dissipation device that can cool the heat-generating components inside the box by water cooling components. The irregularly shaped fan structure can improve the heat dissipation efficiency of the water cooling components and increase the cooling air volume by air cooling. The irregularly shaped fan structure has a notch on the side facing the fan blades, which will not affect the setting of the water cooling components.

[0008] Another objective of this invention is to provide an engine that includes the aforementioned heat dissipation device.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A heat dissipation device, comprising:

[0011] The housing contains heating elements.

[0012] A water-cooling component is disposed in the housing, and the water-cooling component is used to absorb the heat emitted by the heating component;

[0013] An irregularly shaped fan structure is disposed in the housing. The irregularly shaped fan structure is used to blow air into the housing and improve the heat dissipation efficiency of the water cooling component. The irregularly shaped fan structure includes a blade root end and a blade tip end, and the width of the irregularly shaped fan structure gradually increases from the blade tip end to the blade root end.

[0014] Preferably, the device further includes a radiator bracket, which is disposed on the housing, and the irregularly shaped fan structure is disposed on the radiator bracket. The side of the radiator bracket is provided with multiple ventilation openings.

[0015] Preferably, the vent is provided with a guide plate extending toward the irregularly shaped fan structure, and the angle between the guide plate and the irregularly shaped fan structure is an obtuse angle.

[0016] Preferably, the side of the housing is provided with an air outlet, which is connected to the radiator bracket, and the radiator bracket is provided with a second outlet.

[0017] Preferably, the radiator bracket is provided with a radiator cover on the side opposite to the housing, and the radiator cover is provided with an air inlet.

[0018] Preferably, the fan blades of the irregularly shaped fan structure have a notch on the side facing the water-cooling assembly, and the notch is located at the tip of the blade.

[0019] Preferably, the water-cooling assembly includes a water pump and a water chamber frame, the water chamber frame contains circulating coolant, the water pump is connected to the water chamber frame, and the water pump is used to promote the flow of the circulating coolant.

[0020] Preferably, the heating component is a radiator core, and the water chamber frame is disposed between the radiator cover and the radiator bracket, with the water chamber frame corresponding to the radiator core.

[0021] Preferably, the outer diameter of the leaf root end is greater than the width of the water chamber frame, and the width of the water chamber frame is greater than the outer diameter of the leaf tip.

[0022] An engine includes a cooling device, wherein the cooling device is any of the cooling devices described above.

[0023] This utility model provides a heat dissipation device, which includes a heat-generating component installed inside the housing, a water-cooling component installed on the housing, and an irregularly shaped fan structure installed on the housing. This irregularly shaped fan structure can provide air cooling for the heat-generating component. The combination of air cooling and water cooling improves the heat dissipation efficiency. The width of the irregularly shaped fan structure gradually increases from the blade tip to the blade root to avoid interference with the water-cooling component. The irregularly shaped fan structure can be installed without affecting the installation of the water-cooling component, thereby achieving the technical effect of increasing the cooling airflow in a limited space. Attached Figure Description

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

[0025] Figure 1 This is a schematic diagram of the structure of the heat dissipation device provided by this utility model;

[0026] Figure 2 for Figure 1 Cross-sectional view at point AA;

[0027] Figure 3 This is a bottom view of the irregularly shaped fan structure provided by this utility model;

[0028] Figure 4 This is a front view of the irregularly shaped fan structure provided by this utility model;

[0029] Figure 5 This is a schematic diagram showing the relative positions of the irregularly shaped fan structure and the water chamber frame provided by this utility model.

[0030] Figure 6 for Figure 5 Cross-sectional view at BB;

[0031] Figure 7 A schematic diagram of the irregular fan structure and radiator bracket assembly provided by this utility model;

[0032] Figure 8 for Figure 7 Cross-sectional view at point C;

[0033] Figure 9 This is a schematic diagram of the air outlet and corresponding path provided by this utility model.

[0034] Figure label:

[0035] 1-Casing; 2-Irregularly shaped fan structure; 201-Blade root end; 202-Blade tip; 3-Notch; 4-Radiator bracket; 5-Ventilation port; 6-Blower plate; 7-Radiator cover; 8-Water pump; 9-Water chamber frame; 10-Radiator core; 11-Air outlet; 12-Second outlet; 13-Dust cover. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] The core of this utility model is to provide a heat dissipation device, whose irregularly shaped fan structure has a notch on the side facing the water-cooling component, so as to increase the cooling air volume in a limited space.

[0038] Another core aspect of this invention is to provide an engine that includes the aforementioned heat dissipation device.

[0039] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", and "rear" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the purpose of facilitating the description of this application and simplifying the description. It is not intended to 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] The heat dissipation device provided in this application includes: a housing 1, a water-cooling component and a non-circular fan structure 2;

[0041] The housing 1 contains a heating element;

[0042] The water-cooling component is located in the housing 1 and is used to absorb the heat emitted by the heating component.

[0043] The irregular fan structure 2 is located in the housing 1. The irregular fan structure 2 is used to blow air into the housing 1 and improve the heat dissipation efficiency of the water cooling components. The irregular fan structure 2 includes a blade root end 201 and a blade tip 202. The width of the irregular fan structure 2 gradually increases from the blade tip 202 to the blade root end 201.

[0044] For details, please refer to the appendix. Figure 1The housing 1 can be considered as the base of the engine. The heat-generating components inside are not separate structures, but refer to the many heat-generating components within the engine, or components that heat up through heat transfer, such as the engine block, cylinder head, and other high-temperature parts. A water-cooling component is installed on the housing 1. The water-cooling component uses circulating fluid to achieve water-cooled heat dissipation of the heat-generating components. The housing 1 is also equipped with a non-circular fan structure 2. When the non-circular fan structure 2 is working, it can dissipate heat from the heat-generating components through air cooling. That is, the heat dissipation device of this application uses water cooling and air cooling in combination to improve heat dissipation efficiency. It should be emphasized that the width of the fan blades of the non-circular fan structure 2 gradually increases from the blade tip 202 to the blade root 201, thereby avoiding interference between the non-circular fan structure 2 and the water-cooling component. The water-cooling component can be regarded as an existing structure. The non-circular fan structure 2, which is smaller at the top and larger at the bottom, can improve fan performance, increase cooling air volume, ensure product reliability, and reduce costs.

[0045] Based on the above embodiment, it also includes a radiator bracket 4, which is disposed on the housing 1, and an irregularly shaped fan structure 2 is disposed on the radiator bracket 4. The side of the radiator bracket 4 is provided with multiple ventilation holes 5.

[0046] For details, please refer to the appendix. Figure 1 and appendix Figure 7 A radiator bracket 4 is provided on the top of the housing 1, and the heating element is located on the top of the radiator bracket 4. A vent 5 is provided on the side of the radiator bracket 4. The radiator bracket 4 can be regarded as a ring structure. The irregular fan structure 2 is located on the inner circumference of the radiator bracket 4. When the irregular fan structure 2 rotates, it can drive the air from the top of the irregular fan structure 2 downward. After passing through the heating element, some of the heat is discharged from the vent 5 to the outside of the engine to improve the heat dissipation efficiency.

[0047] Based on the above embodiment, a guide plate 6 extending toward the irregular fan structure 2 is provided at the vent 5, and the angle between the guide plate 6 and the irregular fan structure 2 is an obtuse angle.

[0048] For details, please refer to the appendix. Figure 8 The radiator bracket 4 is equipped with five guide plates 6, which are labeled as guide plate 1, guide plate 2 to guide plate 5 from right to left. The angle between guide plate 1, guide plate 2 and guide plate 3 and the irregular fan structure 2 is between 125° and 140°. The number of guide plates 6 is preferably 4-6, which can not only block large particles of foreign objects from entering the air duct, but also reduce resistance and increase cooling air volume.

[0049] Based on the above embodiment, the side of the housing 1 is provided with an air outlet 11, which is connected to the radiator bracket 4, and the radiator bracket 4 is provided with a second outlet 12.

[0050] For details, please refer to the appendix. Figure 8 With appendix Figure 9 The cooling air has two main flow paths within the radiator bracket 4: Path 1 (Line 1): Most of the cooling air flows out from the vent 5 after passing through the guide plate 6 of the radiator bracket 4; Path 2 (Line 2): A small amount of cooling air flows out from the second outlet 12 of the radiator bracket 4, and then flows out of the air duct system through the air outlet 11 on the side of the right cover. The design of this air duct structure can reduce the engine inlet water temperature by 10°C, meet the requirements of extreme environments, improve product competitiveness, and also reduce the external size, effectively reducing costs.

[0051] Optionally, a dust cover 13 can be installed at the air outlet 11. The purpose of the dust cover 13 is to block solid particles, prevent rainwater and splash water from flowing back into the air outlet 11, maintain the airflow direction, reduce noise, and play a protective role.

[0052] Based on the above embodiment, the radiator bracket 4 is provided with a radiator cover 7 on the side away from the housing 1, and the radiator cover 7 is provided with an air inlet.

[0053] For details, please refer to the appendix. Figure 1 A radiator cover 7 is provided above the radiator bracket 4. An air inlet is provided above the radiator cover 7. The radiator cover 7 can cover the outer periphery of the blades of the irregular fan structure 2, forming a relatively closed flow channel. This allows all the air drawn or compressed by the irregular fan structure 2 to flow evenly through the radiator core 10, preventing the airflow from being scattered or short-circuited in the engine compartment, thereby significantly improving cooling efficiency. It can also act as a rigid boundary to limit the swing amplitude of the irregular fan structure 2 and prevent the blades from colliding with surrounding parts. In addition, by controlling the radial gap (usually 3-7mm) between the irregular fan structure 2 and the radiator cover 7, air leakage is reduced, the system static pressure is increased, and the irregular fan structure 2 can obtain a larger air volume at the same speed, while reducing power consumption.

[0054] Based on the above embodiment, the blades of the irregular fan structure 2 have a notch 3 on the side facing the water-cooling component, and the notch 3 is located at the tip 202 of the blade.

[0055] For details, please refer to the appendix. Figure 3 With appendix Figure 7 The blades of the irregular fan structure 2 have a notch 3 on the outer periphery of the blade tip 202. The notch 3 can reserve more space for the water cooling components and prevent interference between the irregular fan structure 2 and the water cooling components during operation.

[0056] Based on the above embodiments, the water-cooling assembly includes a water pump 8 and a water chamber frame 9. The water chamber frame 9 contains circulating coolant, and the water pump 8 is connected to the water chamber frame 9. The water pump 8 is used to promote the flow of circulating coolant.

[0057] Specifically, the water pump 8 is used to extract coolant from inside the engine and pressurize it to the radiator core, and then send the cooled coolant back to the cylinder block and cylinder head to ensure continuous coolant flow. The water chamber of the water chamber frame 9 has guide ribs and baffles inside to distribute the high-temperature liquid evenly to each flat tube, improve the utilization rate of the radiator core 10, and avoid local overheating. The side plate / frame of the water chamber frame 9 integrates the radiator core, fan, shroud, mounting bracket, etc. into an assembly to withstand the inertial load of the vehicle during bumps, braking, and acceleration. The configuration of the water pump 8 and the water chamber frame 9 can refer to the existing technology, and will not be described in detail here.

[0058] Based on the above embodiments, the heat-generating component is a radiator core 10, and the water chamber frame 9 is disposed between the radiator cover 7 and the radiator bracket 4. The water chamber frame 9 and the radiator core 10 are correspondingly arranged.

[0059] For details, please refer to the appendix. Figure 1 Please refer to the appendix. Figure 1 With appendix Figure 2 The top of the housing 1 is equipped with a radiator bracket 4, an irregularly shaped fan structure 2, a water chamber frame 9, and a radiator cover 7. Generally, the upper and lower water chambers of the water chamber frame 9 and the flat tube-fin array of the radiator core 10 form a sealed flow channel, allowing the coolant to flow inside the radiator core 10 and the external air to pass over the fins, thus completing the heat transfer between the liquid, metal, and air.

[0060] Based on the above embodiment, the outer diameter of the leaf root end 201 is greater than the width of the water chamber frame 9, and the width of the water chamber frame 9 is greater than the outer diameter of the leaf tip 202.

[0061] For details, please refer to the appendix. Figure 5 With appendix Figure 6 The overall structure of the irregular fan is "larger at the bottom and smaller at the top": the outer diameter D1 of the fan blade root end 201 is larger than the width B of the water chamber frame, and the outer diameter D2 of the blade tip 202 is smaller than the width B of the water chamber frame. At the same time, the integrity of the blades below 75% of the blade height should be ensured to ensure structural strength. The upper part is cut to provide clearance space for the water chamber frame 9.

[0062] In addition to the aforementioned heat dissipation device, this utility model also provides an engine that includes the heat dissipation device disclosed in the above embodiments. For the structure of other parts of the engine, please refer to the prior art, which will not be repeated here.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] The present invention provides a detailed description of a heat dissipation device and an engine. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A heat dissipating apparatus characterized by comprising: include: The housing (1) contains a heating element; A water-cooling component is provided in the housing (1), and the water-cooling component is used to absorb the heat emitted by the heating component; A shaped fan structure (2) is provided in the housing (1). The shaped fan structure (2) is used to blow air into the housing (1) and improve the heat dissipation efficiency of the water cooling component. The shaped fan structure (2) includes a blade root end (201) and a blade tip end (202). The width of the shaped fan structure (2) gradually increases from the blade tip end (202) to the blade root end (201).

2. The heat dissipating apparatus according to claim 1, wherein It also includes a radiator bracket (4), which is located on the housing (1), and the irregular fan structure (2) is located on the radiator bracket (4). The side of the radiator bracket (4) is provided with multiple ventilation openings (5).

3. The heat dissipating apparatus according to claim 2, wherein The ventilation opening (5) is provided with a guide plate (6) extending toward the irregular fan structure (2), and the angle between the guide plate (6) and the irregular fan structure (2) is an obtuse angle.

4. The heat dissipation device according to claim 2, characterized in that, The side of the housing (1) is provided with an air outlet (11), which is connected to the radiator bracket (4). The radiator bracket (4) is provided with a second outlet (12).

5. The heat dissipation device according to claim 4, characterized in that, The radiator bracket (4) is provided with a radiator cover (7) on the side away from the box (1), and the radiator cover (7) is provided with an air inlet.

6. The heat dissipation device according to claim 5, characterized in that, The blades of the irregular fan structure (2) have a notch (3) on the side facing the water-cooling component, and the notch (3) is located at the tip of the blade (202).

7. The heat dissipation device according to claim 6, characterized in that, The water-cooling assembly includes a water pump (8) and a water chamber frame (9). The water chamber frame (9) contains circulating coolant. The water pump (8) is connected to the water chamber frame (9) and is used to promote the flow of the circulating coolant.

8. The heat dissipation device according to claim 7, characterized in that, The heating component is a radiator core (10), and the water chamber frame (9) is located between the radiator cover (7) and the radiator bracket (4). The water chamber frame (9) is correspondingly arranged with the radiator core (10).

9. The heat dissipation device according to claim 7 or 8, characterized in that, The outer diameter of the leaf root end (201) is greater than the width of the water chamber frame (9), and the width of the water chamber frame (9) is greater than the outer diameter of the leaf tip (202).

10. An engine, including a cooling device, characterized in that, The heat dissipation device is the heat dissipation device as described in any one of claims 1 to 9.

Images