Wind shield, heat dissipation device and vehicle

By designing the gradient part and airflow buffer part of the air duct case in the air shield of the cooling module, the problems of low ventilation rate and vortex in the prior art are solved, and a higher air intake and cooling effect are achieved, and the cooling capacity of the cooling module is improved.

CN222962952UActive Publication Date: 2025-06-10BEIJING FOTONDAIMLER AUTOMOTIVE
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422153681.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-03
Publication Date
2025-06-10
Estimated Expiration
2034-09-03

AI Technical Summary

Technical Problem

The air shield structure of the existing cooling module leads to a low utilization rate of the air duct, especially at the acute angle between the air shield and the radiator, which affects the air inlet direction of the air duct and may generate vortex, thereby reducing the cooling module's heat dissipation ability.

Method used

A air shield is designed, including an air duct housing between the first air guide frame and the second air guide frame. The air duct housing has a gradient portion and an air flow buffer portion. The width of the air flow buffer portion is not less than 45 mm to optimize the air flow path, reduce friction between the air flow and the air duct housing, and provide a buffer zone for the air flow so that it can enter the radiator smoothly.

Benefits of technology

By optimizing the airflow path and reducing friction, the air inlet volume and cooling effect of the air shield is improved, the cooling capacity of the cooling module is enhanced, and the contact time between the airflow and the radiator is extended, and the heat exchange efficiency is improved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222962952U_ABST
    Figure CN222962952U_ABST
Patent Text Reader

Abstract

The utility model discloses a wind shield, a heat dissipation device and a vehicle, the wind shield comprises a first wind guide frame, a second wind guide frame and a wind shield cover, the first wind guide frame is suitable for being installed on a heat dissipation device; the first air guide frame and the second air guide frame are arranged at intervals in the air guide direction, and the second air guide frame is suitable for installing a cooling fan; the air duct shell is connected between the first air guide frame and the second air guide frame to form an air guide channel, the air duct shell comprises a gradual change part and an airflow buffering part, and the gradual change part with the shape gradually changed is constructed on the side, facing the second air guide frame, of the air duct shell; an airflow buffer part extending in the horizontal direction is constructed on the side, facing the first air guide frame, of the air guide shell, and the airflow buffer part is connected with the gradual change part; the horizontal width of the airflow buffering part in the air guiding direction is not smaller than 45 mm. According to the embodiment of the utility model, the fan cowl has the advantages of improving the air inlet quantity and the heat dissipation capability of the cooling module, and the like.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle components, and particularly relates to a wind shield, a heat dissipation device and a vehicle. Background Art

[0002] In the related art, the structure of the wind shield of the cooling module is a "cone" structure in which the radiator end of the cooling module is directly linearly connected to the annular opening end of the fan. The utilization rate of the air duct formed between the wind shield and the radiator in this structure is relatively low. Especially at the acute angle part where the wind shield contacts the radiator, there are large ineffective areas. These ineffective areas affect the air inlet direction of the air duct, and in severe cases, eddy currents will be generated, thereby affecting the heat dissipation capacity of the cooling module. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a wind shield, which has the advantages of improving the air intake volume and the heat dissipation capacity of the cooling module.

[0004] The second aspect of the utility model provides a heat dissipation device with a wind shield.

[0005] The third aspect of the utility model provides a vehicle with a heat dissipation device.

[0006] To achieve the above object, according to an embodiment of the utility model, a wind shield is provided, comprising: a first air guiding frame adapted to be installed on a radiator; a second air guiding frame, the first air guiding frame and the second air guiding frame are arranged at intervals along the air guiding direction, and the second air guiding frame is adapted to install a cooling fan; an air duct housing connected between the first air guiding frame and the second air guiding frame to form an air guiding channel, the air duct housing includes a gradual change portion and an air flow buffering portion, a side of the air duct housing facing the second air guiding frame is constructed with a gradually changing gradual change portion, a side of the air guiding housing facing the first air guiding frame is constructed with an air flow buffering portion extending in the horizontal direction, and the air flow buffering portion is connected to the gradual change portion; wherein, the horizontal width of the air flow buffering portion along the air guiding direction is not less than 45 mm.

[0007] According to the wind shield of the embodiment of the present utility model, by arranging an air duct housing between the first air guide frame and the second air guide frame, the connection part between the air duct housing and the radiator is a "right angle" structure, that is, there is a certain width between the air flow buffer parts along the horizontal direction. Controlling this width within a range not less than 45 mm can optimize the air flow path, reduce the air resistance by reducing the friction between the air flow and the air duct housing, and at the same time provide a buffer zone for the incoming air flow, so that the air flow can be stabilized before entering the radiator, thereby enabling the air to smoothly pass through the radiator and the cooling fan, and increasing the air intake volume of the wind shield. Similarly, the structure of the gradual change part can also effectively guide the air flow, make the air flow more uniform, avoid the vortex of the air flow, and also improve the air intake volume and cooling effect of the wind shield.

[0008] In addition, by controlling the width of the air flow buffer part within a range not less than 45 mm, the air flow buffer part can also provide a longer air flow path, which increases the contact time between the air and the radiator, thereby improving the heat exchange efficiency. A longer contact time means that the heat can be more fully transferred from the radiator to the air, thereby improving the heat dissipation capacity of the cooling module.

[0009] Therefore, the wind shield according to the embodiment of the present utility model has the advantages of improving the air intake volume and the heat dissipation capacity of the cooling module.

[0010] According to some specific embodiments of the present utility model, the gradual change part extends along the vertical direction, and the gradual change part and the air flow buffer part are perpendicular to each other.

[0011] According to some specific embodiments of the present utility model, the first air guide frame is configured as a rectangular frame, the second air guide frame is configured as a circular ring frame, the top of the second air guide frame extends beyond the first air guide frame, and the bottom and both sides of the second air guide frame are inside the projection of the first air guide frame.

[0012] According to some specific embodiments of the present utility model, the top of the gradual change part is provided with an inclined plane air guide part, the inclined plane air guide part is configured as a plane and extends obliquely upward along the second air guide frame from the inclined plane air guide part.

[0013] According to some specific embodiments of the present utility model, the width of the top of the air flow buffer part is 65 mm to 75 mm, and the width of the bottom of the air flow buffer part is 45 mm to 55 mm.

[0014] According to some specific embodiments of the present utility model, the gradual change part is provided with arc-shaped air guide parts extending towards the second air guide frame at the four corners adjacent to the first air guide frame, and the gradual change part is connected in a transition manner between a plurality of the arc-shaped air guide parts along the circumferential direction.

[0015] According to some specific embodiments of the present utility model, the air shroud is configured with a pipe groove penetrating through the second air guide frame and the air duct housing, and the pipe groove is adapted to avoid the pipeline of the water tank.

[0016] According to some specific embodiments of the present utility model, the air shroud is configured as a fiberglass product.

[0017] According to an embodiment of the second aspect of the present utility model, a heat dissipation device is provided, which includes an air shroud, a radiator, and a cooling fan according to the above embodiments of the present utility model. The air shroud is installed on the radiator through the first air guide frame. The air shroud installs the cooling fan through the second air guide frame.

[0018] The heat dissipation device according to the embodiment of the present utility model has advantages such as improving the air intake volume and the heat dissipation capacity of the cooling module by using the air shroud according to the embodiment of the present utility model.

[0019] According to an embodiment of the third aspect of the present utility model, a vehicle is provided, which includes the heat dissipation device according to the above embodiments of the present utility model.

[0020] The vehicle according to the embodiment of the present utility model has advantages such as improving the air intake volume and the heat dissipation capacity of the cooling module by using the heat dissipation device according to the embodiment of the present utility model.

[0021] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0023] Figure 1 is a side view of the installation of the air shroud according to the embodiment of the present utility model;

[0024] Figure 2 is a front view of the installation of the air shroud according to the embodiment of the present utility model;

[0025] Figure 3 is a schematic structural diagram of the installation of the air shroud according to the embodiment of the present utility model;

[0026] Figure 4 is a schematic structural diagram of the air shroud according to the embodiment of the present utility model.

[0027] Reference Signs:

[0028] Air shroud 1, First air guide frame 100, Second air guide frame 200, Air duct housing 300,

[0029] The gradual change part 310, the air flow buffer part 320, the inclined surface air guiding part 311, the arc-shaped air guiding part 312,

[0030] the pipe groove 201, the heat dissipation device 10, and the radiator 11. Specific embodiments

[0031] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described by referring to the drawings below are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0033] In the description of the present invention, the "first feature" and "second feature" may include one or more of such features.

[0034] In the description of the present invention, the meaning of "a plurality" is two or more, and the meaning of "several" is one or more.

[0035] The air shield 1 according to an embodiment of the present invention will be described below with reference to the drawings.

[0036] As Figures 1 - 4 shown, the air shield 1 according to an embodiment of the present invention includes a first air guiding frame 100, a second air guiding frame 200, and an air duct housing 300.

[0037] The first air guide frame 100 is adapted to be installed on the radiator 11. The first air guide frame 100 and the second air guide frame 200 are arranged at intervals along the air guiding direction. The second air guide frame 200 is adapted to install a cooling fan. The air duct housing 300 is connected between the first air guide frame 100 and the second air guide frame 200 to form an air guiding channel. The air duct housing 300 includes a tapered portion 310 and an air flow buffering portion 320. A tapered portion 310 with a gradually changing shape is formed on one side of the air duct housing 300 facing the second air guide frame 200. An air flow buffering portion 320 extending in the horizontal direction is formed on one side of the air duct housing 300 facing the first air guide frame 100. The air flow buffering portion 320 is connected to the tapered portion 310. Among them, the horizontal width of the air flow buffering portion 320 along the air guiding direction is not less than 45 mm.

[0038] For example, the first air guide frame 100 and the second air guide frame 200 are arranged at intervals along the air guiding direction, which can form an air flow guiding channel to guide the air flow to appropriately flow through the radiator housing, reduce air resistance, improve the aerodynamic efficiency of the vehicle, and is beneficial to reducing fuel consumption and improving driving performance. The air duct housing 300 is connected between the first air guide frame 110 and the second air guide frame 120 and is connected in a transitional manner, which can play a role in strengthening and stabilizing the overall structure of the wind shield 1.

[0039] According to the wind shield 1 of the embodiment of the present invention, by arranging the air duct housing 300 between the first air guide frame 100 and the second air guide frame 200, the connection part between the air duct housing 300 and the radiator 11 is a "right angle" structure, that is, there is a certain width between the air flow buffering portions 320 in the horizontal direction. Controlling this width within a range not less than 45 mm can optimize the air flow path, reduce wind resistance by reducing the friction between the air flow and the air duct housing 300, and at the same time provide a buffer zone for the incoming air flow, so that the air flow can be stabilized before entering the radiator 11, so that the air can smoothly pass through the radiator 11 and the cooling fan, increasing the air intake volume of the wind shield 1. Similarly, the structure of the tapered portion 310 can also effectively guide the air flow, make the air flow more uniform, avoid air flow vortices, and also improve the air intake volume and cooling effect of the wind shield 1.

[0040] In addition, by controlling the width of the air flow buffering portion 320 within a range not less than 45 mm, the air flow buffering portion 320 can also extend the flow path, thereby improving the heat exchange efficiency. A longer contact time means that heat can be more fully transferred from the radiator to the air, thereby improving the heat dissipation capacity of the cooling module.

[0041] Therefore, the wind shield 1 according to the embodiment of the present invention has the advantages of increasing the air intake volume and the heat dissipation capacity of the cooling module.

[0042] In some specific embodiments of the present invention, such as Figure 1As shown, the gradual change portion 310 extends in the vertical direction, and the gradual change portion 310 and the air flow buffer portion 320 are perpendicular to each other.

[0043] The gradual change portion 310 extends in the vertical direction, which can effectively guide the air flow to flow in the vertical direction, helping to form a stable and directional air flow, reducing the turbulence and energy loss of the air flow when turning, and improving the straightness and efficiency of the air flow. The air flow buffer portion 320 is vertically arranged with the gradual change portion 310, which can provide a smooth transition area for the air flow, especially when the air flow turns from the horizontal direction to the vertical direction. The air flow buffer portion 320 can absorb the impact when the air flow turns, reduce the disorder of the air flow, and make the air flow enter the heat dissipation system more smoothly. At the same time, the vertical structure of the gradual change portion 310 and the air flow buffer portion 320 can ensure that a relatively stable and uniform distribution of the air flow has been formed before the air flow enters the radiator 11, which helps to improve the heat exchange efficiency between the radiator 11 and the air flow, thereby improving the overall heat dissipation performance.

[0044] In some specific embodiments of the present utility model, such as Figure 2 As shown, the first air guide frame 100 is configured as a rectangular frame, and the second air guide frame 200 is configured as an annular frame. The top of the second air guide frame 200 extends beyond the first air guide frame 100, and the bottom and both sides of the second air guide frame 200 are inside the projection of the first air guide frame 100.

[0045] The first air guide frame 100 is configured as a rectangular frame and is adapted to the shape of the radiator housing, which can effectively cover the surface of the radiator, ensure the close fit between the first air guide frame 100 and the radiator housing, improve the installation accuracy between the air shroud 1 and the radiator housing and the stability of the overall structure, and also increase the contact area between the radiator 11 and the outside air, which is beneficial to improving the heat dissipation effect of the radiator 11. The second air guide frame 200 is configured as an annular frame, and the hollow area is relatively small, which is adapted to the shape of the cooling fan. While ensuring sufficient air flow supply, by controlling the air flow rate and direction, the operation of the cooling system is made more efficient and stable.

[0046] In some specific embodiments of the present utility model, such as Figure 2As shown, the top of the gradient portion 310 is constructed with an inclined air guide portion 311, which is constructed into a plane and extends obliquely upward along the second air guide frame 200 from the inclined air guide portion 311. The four surfaces of the inclined air guide portion 311 can be a structure that transitions from a rectangle to a ring. The inclined air guide portion 311 can more effectively guide the airflow to flow in a predetermined direction, especially when the airflow turns from a horizontal direction to a vertical direction. The inclination angle of the inclined surface can help the airflow to transition smoothly, reduce turbulence and energy loss when the airflow turns, increase the air intake of the wind shield 1 and the cooling effect of the cooling module, and maintain the normal operation of the vehicle. At the same time, the inclined air guide portion 311 can ensure that the airflow has formed a relatively stable and uniform distribution before entering the radiator 11, which helps to improve the heat exchange efficiency between the radiator 11 and the airflow, thereby improving the overall heat dissipation performance. The uniform airflow distribution also reduces the hot spots on the surface of the radiator and improves the uniformity of cooling.

[0047] In some specific embodiments of the present invention, Figure 1 As shown, the width of the top of the airflow buffer 320 is 65mm-75mm, that is, the width pointed by arrow A, and the width of the bottom of the airflow buffer 320 is 45mm-55mm, that is, the width pointed by arrow B. The top of the airflow buffer 320 and the bottom of the airflow buffer 320 are important factors affecting wind resistance. Through simulation analysis, it is known that the width of the top of the airflow buffer 320 is controlled at 65mm-75mm, and the width of the bottom of the airflow buffer 320 is controlled at 45mm-55mm. At this time, the top width of the airflow buffer 320 is greater than the bottom width, and the liquid temperature difference and the air intake are significantly improved compared with the airflow buffer 320 with a width of 0. The increased air intake and optimized airflow distribution help to improve the heat exchange efficiency between the radiator 11 and the airflow. More air flow can take away more heat, thereby reducing the temperature of the vehicle faster and improving the cooling capacity of the system.

[0048] In some specific embodiments of the present invention, Figure 2 As shown, the gradient portion 310 is configured with arc-shaped air guide portions 312 extending toward the second air guide frame 200 at four corners adjacent to the first air guide frame, and the gradient portion 310 transitions and connects between the plurality of arc-shaped air guide portions 312 along the circumferential direction.

[0049] By constructing arc-shaped air guiding parts at the four corners of the gradient part 310, the direction of the air flow can be changed, and the resistance generated when the air flow encounters the corner can be reduced. The structure of the arc-shaped air guiding part 312 enables the air flow to flow through the corner more smoothly, reducing the vortex and turbulence phenomena generated during air flow, thereby reducing the wind resistance and improving the air guiding effect. At the same time, the structure of the arc-shaped air guiding part 312 can increase the area of the air inlet region at the top of the air shield 1, thereby increasing the air intake. Since the air flow flows more smoothly under the guidance of the arc-shaped air guiding part, the resistance during the air intake process is reduced, and the air can enter the air shield more effectively and be supplied to the radiator 11 or the cooling fan, improving the heat dissipation effect.

[0050] Through the setting of the arc-shaped air guiding part 312, the air flow can be effectively guided and flow smoothly at the corner, avoiding the accumulation and blockage of the air flow, helping to optimize the distribution of the air flow, making the air entering the air shield 1 more evenly distributed, and improving the cooling effect.

[0051] In some specific embodiments of the present utility model, as shown in 2- Figure 4 As shown, the air shield 1 is constructed with a pipe groove 201 and a duct housing 300 that penetrate through the second air guiding frame 200. The pipe groove 201 is suitable for avoiding the pipelines of the water tank. The structure of the pipe groove 201 can effectively avoid the pipelines of the radiator 11, ensure that the pipelines are not squeezed or blocked, and ensure the smooth and normal operation of the pipelines. Through the structure of the pipe groove 201, the air shield 1 can effectively cooperate with the pipelines on the water tank, avoiding interference and collision between the pipelines and the air shield 1, and ensuring the normal operation of the equipment. Moreover, notches are also constructed on the left and right sides of the second air guiding frame 200, which can timely avoid the components of other structures, improving the convenience of installation.

[0052] In some specific embodiments of the present utility model, the air shield 1 is constructed as a fiberglass part. The relative density of fiberglass is relatively low, usually between 1.5 and 2.0, only 1 / 4 to 1 / 5 of that of carbon steel, but its tensile strength is close to or exceeds that of carbon steel, and its specific strength can be comparable to that of high-grade alloy steel. This means that while maintaining the structural strength, the air shield 1 is lighter in weight, reducing the vehicle load and being beneficial to improving the fuel efficiency or energy efficiency. At the same time, the fiberglass part has good corrosion resistance and can resist the erosion of chemical substances, water, acids, alkalis and other corrosive substances in the atmosphere, thereby extending the service life of the air shield 1 and reducing the maintenance cost.

[0053] The following describes the heat dissipation device 10 according to the embodiments of the present utility model.

[0054] The heat dissipation device 10 according to the embodiments of the present utility model, as Figures 1 - 3As shown in the figure, it includes a wind shield 1, a radiator 11, and a cooling fan according to the above embodiments of the present invention. The wind shield 1 is installed on the radiator 11 through a first air guide frame 100. The wind shield 1 is installed with a cooling fan through a second air guide frame 200.

[0055] The radiator 11 is installed on the back of the wind shield 1 and is connected to the wind shield 1 by passing through fasteners, ensuring close contact between the radiator 11 and the wind shield 1, so that the cooling air can evenly pass through the radiator for heat dissipation. The water tank is connected to the wind shield 1 through a water tank pipeline, so that the coolant can enter the radiator from the water tank through the water tank pipeline, absorb heat and be cooled during the heat dissipation process, and then return to the water tank through the water tank pipeline for recirculation, thus realizing the normal operation of the cooling system. The cooling fan is installed on one side of the wind shield 1 and the radiator 11, which can ensure that the cooling fan can guide the cooling air flow into the radiator 11 through the air guide duct during operation, effectively improving the performance and reliability of the entire cooling system and providing guarantee for the safe operation of the vehicle.

[0056] The heat dissipation device according to the above embodiments of the present invention has the advantages of improving the air intake volume and the heat dissipation capacity of the cooling module by using the wind shield 1 according to the embodiments of the present invention.

[0057] The vehicle according to the embodiments of the present invention will be described below.

[0058] The vehicle according to the embodiments of the present invention includes a heat dissipation device 10 according to the above embodiments of the present invention.

[0059] Through the above heat dissipation device 10, it can ensure that enough natural wind is inhaled by the cooling fan to blow through the radiator 11, thereby ensuring the cooling effect of the engine. At the same time, the horizontal width of the air flow buffer part along the air guide direction can be limited within a certain range to increase the air intake volume of the wind shield 1, making the heat dissipation capacity of the entire engine cooling system stronger and not easily damaged, thus greatly improving the reliability of vehicle operation.

[0060] The vehicle according to the above embodiments of the present invention has the advantages of improving the air intake volume and the heat dissipation capacity of the cooling module by using the heat dissipation device 10 according to the embodiments of the present invention.

[0061] The other components and operations according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0062] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0063] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A wind shield, characterized in that: include: A first air guide frame, wherein the first air guide frame is suitable for being installed on a radiator; A second air guide frame, wherein the first air guide frame and the second air guide frame are arranged at intervals along the air guide direction, and the second air guide frame is suitable for installing a heat dissipation fan; An air duct housing, the air duct housing is connected between the first air guide frame and the second air guide frame to form an air guide channel, the air duct housing comprises a gradual change portion and an airflow buffer portion, a side of the air duct housing facing the second air guide frame is formed with a gradual change portion with a gradually changing shape, a side of the air duct housing facing the first air guide frame is formed with an airflow buffer portion extending in a horizontal direction, and the airflow buffer portion is connected to the gradual change portion; Wherein, the horizontal width of the airflow buffer portion along the wind guiding direction is not less than 45 mm.

2. The wind shield according to claim 1, characterized in that: The gradual change portion extends along a vertical direction, and the gradual change portion and the airflow buffer portion are perpendicular to each other.

3. The wind shield according to claim 1, characterized in that: The first air guide frame is configured as a rectangular frame, the second air guide frame is configured as a circular ring frame, the top of the second air guide frame exceeds the first air guide frame, and the bottom and both sides of the second air guide frame are located inside the projection of the first air guide frame.

4. The wind shield according to claim 3, characterized in that: A sloped air guide portion is configured on the top of the gradual change portion. The sloped air guide portion is configured as a plane and extends obliquely upward along the second air guide frame from the sloped air guide portion.

5. The wind shield according to claim 4, characterized in that: The width of the top of the airflow buffer portion is 65 mm to 75 mm, and the width of the bottom of the airflow buffer portion is 45 mm to 55 mm.

6. The wind shield according to claim 1, characterized in that: The gradient portion is configured with arc-shaped air guide portions extending toward the second air guide frame at four corners adjacent to the first air guide frame, and the gradient portion transitions and connects between a plurality of the arc-shaped air guide portions along the circumferential direction.

7. The wind shield according to claim 1, characterized in that: The wind shield is constructed with a pipe groove penetrating the second air guide frame and the air duct housing, and the pipe groove is suitable for avoiding the pipe of the water tank.

8. The wind shield according to claim 1, characterized in that: The wind shield is constructed as a glass fiber reinforced plastic part.

9. A heat dissipation device, characterized in that: include: The wind shield according to any one of claims 1 to 8; A radiator, wherein the wind shield is mounted on the radiator through the first air guide frame; A heat dissipation fan is installed on the wind shield through the second air guide frame.

10. A vehicle, characterized in that: include: The heat sink according to any one of claim 9.