Fan wind shield and fan assembly for vehicle

Abstract

The present application provides a fan wind shield, comprising a wind shield body and a wind shield assembly, wherein the wind shield body is provided with a through hole, a mounting slot and a ventilation hole for mounting a fan, and the wind shield assembly has an air guide portion, and the wind shield assembly is slidably connected to the mounting slot. When the vehicle's driving speed is less than or equal to a preset value, the wind shield assembly covers the through hole, and when the vehicle's driving speed is greater than the preset value, the air guide portion drives the wind shield assembly to move along the mounting slot against the wind to open the through hole. The present application also discloses a fan assembly for a vehicle, comprising the above-mentioned wind shield and fan assembly, and the fan assembly is mounted on the ventilation hole. Since the wind shield assembly only slides linearly within the mounting slot, the space utilization rate of the wind shield is improved, and at the same time, the risk of noise generated during the closing or opening of the through hole by the wind shield assembly is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle cooling fans, and in particular to a fan shroud and a fan assembly for a vehicle. Background Art

[0002] The electronic fan of a car is used to force the radiator to dissipate heat. However, when the vehicle speed is high and the engine load is low, the air intake required by the radiator is not very large. At this time, the presence of the fan will increase the wind resistance of the entire vehicle. Therefore, general fans will have one or more windows on the wind shield. When the vehicle speed is high, the damper automatically opens to reduce the resistance of the fan itself, thereby reducing the energy consumption of the entire vehicle.

[0003] Currently, if Figure 19 As shown, the cooling fan basically consists of a fan shroud 3 mounted on the radiator and blades A, which are arranged vertically. When blades A are closed, they collide with the fan shroud 3, generating noise. Furthermore, the fan blades A occupy a large space when opening or closing, which is detrimental to the spatial arrangement of other components. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a fan wind shield and a fan assembly for a vehicle to solve the problem that fan blades occupy a large space and generate noise.

[0005] In order to solve the above problems, this application adopts the following technical solutions:

[0006] The present application provides a fan wind shield, comprising:

[0007] The fan housing has a through hole, a mounting slot and a ventilation hole for mounting a fan assembly; and

[0008] A windshield assembly having a wind guide portion, wherein the windshield assembly is slidably connected to the mounting slot;

[0009] When the vehicle's speed is less than or equal to a preset value, the windshield assembly covers the through hole; when the vehicle's speed is greater than the preset value, the wind guide portion drives the windshield assembly to move along the mounting slot to open the through hole.

[0010] Furthermore, there are multiple windshield components, the through holes are the same in number as the windshield components, and the through holes and the windshield components are arranged in pairs.

[0011] Furthermore, there are two mounting slots, and both sides of the windshield assembly are respectively located in one of the mounting slots.

[0012] Furthermore, the fan wind shield also includes a limiting member, which is connected to the wind shield body and is used to limit the wind shield assembly from being separated from the installation slot.

[0013] Furthermore, the material of the limiting member is elastic material.

[0014] Furthermore, the wind shield assembly and the wind shield body are arranged to be inclined at a first preset angle.

[0015] Furthermore, the windshield assembly includes:

[0016] Sliding panels; and

[0017] The wind guide plate is fixedly connected to the sliding plate, and the wind guide plate and the sliding plate are inclined at a second preset angle to form the wind guide portion.

[0018] Furthermore, the wind shield body and the wind shield assembly are both injection molded.

[0019] Furthermore, the material of the hood body is a mixture of plastic and glass fiber, or PA66-GF30; and / or,

[0020] The material of the windshield component is a mixed material of plastic and glass fiber, or PA66-GF30.

[0021] The present application also provides a fan assembly for a vehicle, comprising:

[0022] The fan guard mentioned above; and

[0023] A fan assembly is installed in the ventilation hole of the fan wind shield.

[0024] The present application provides a fan wind shield, comprising a wind shield body and a wind shield assembly, wherein the wind shield body is provided with a through hole, a mounting slot and a ventilation hole for mounting a fan, and the wind shield assembly has an air guide portion, and the wind shield assembly is slidably connected to the mounting slot. When the vehicle's driving speed is less than or equal to a preset value, the wind shield assembly covers the through hole, and when the vehicle's driving speed is greater than the preset value, the air guide portion drives the wind shield assembly to move along the mounting slot against the wind to open the through hole. The present application also discloses a fan assembly for a vehicle, comprising the above-mentioned wind shield and a fan assembly, and the fan assembly is mounted on the ventilation hole. Since the wind shield assembly only slides in the mounting slot, and the wind shield assembly is not configured to rotate around a rotating shaft to control the opening or closing of the through hole, the space utilization rate of the wind shield is improved, and at the same time, the risk of noise generated during the closing or opening of the through hole by the wind shield assembly is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a wind shield body provided in an embodiment of the present application;

[0026] Figure 2 A schematic structural diagram of a fan wind shield provided in an embodiment of the present application;

[0027] Figure 3 Based Figure 2 BB section view;

[0028] Figure 4 Based Figure 3 Enlarged view of point C;

[0029] Figure 5 A schematic structural diagram of a windshield assembly provided in an embodiment of the present application;

[0030] Figure 6 A schematic structural diagram of a windshield assembly provided in an embodiment of the present application, wherein a mounting slot is shown;

[0031] Figure 7 A schematic structural diagram of another windshield assembly provided in an embodiment of the present application;

[0032] Figure 8 A schematic structural diagram of another fan wind shield provided in an embodiment of the present application;

[0033] Figure 9 A cross-sectional view of a windshield assembly provided in an embodiment of the present application, wherein the mounting slot is shown;

[0034] Figure 10 A schematic structural diagram of another fan wind shield provided in an embodiment of the present application, wherein a first type of limiting member is shown;

[0035] Figure 11 A schematic structural diagram of another fan wind shield provided in an embodiment of the present application, wherein a second limiting member is shown;

[0036] Figure 12 for Figure 11 A schematic diagram of the assembly of the second limiting member and the mounting slot in another fan wind shield, wherein the wind shield component is hidden;

[0037] Figure 13 for Figure 11 Schematic diagram of the structure of the middle windshield assembly;

[0038] Figure 14 A side view of another windshield assembly provided in an embodiment of the present application;

[0039] Figure 15 for Figure 14 A front view of the middle windshield assembly;

[0040] Figure 16A schematic structural diagram of a fan assembly for a vehicle provided in an embodiment of the present application;

[0041] Figure 17 A side view of a fan wind shield provided in an embodiment of the present application, wherein the through hole is closed;

[0042] Figure 18 A side view of a fan wind shield provided in an embodiment of the present application, wherein the through hole is open; and

[0043] Figure 19 It is a structural schematic diagram of a fan guard in the prior art.

[0044] Description of Reference Numerals

[0045] 1. Fan shroud; 10. shroud body; 101. Through hole; 102. Mounting slot; 103. Ventilation hole; 104. First surface; 11. Fan assembly; 12. Wind shield assembly; 120. Wind guide portion; 121. Sliding plate; 122. Wind guide plate; 123. Flange; 13. Limiting member; 13A. First limiting member; 13B. Second limiting member; 2. External wind; 3. Fan shroud; A. Fan blades; D. First preset angle; E. Second preset angle. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0047] The various specific technical features described in the specific embodiments may be combined in any suitable manner, unless they are inconsistent. For example, different embodiments and technical solutions may be formed by combining different specific technical features. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0048] In the following description, the terms "first, second, ..." are used solely to distinguish different objects and do not imply any similarities or connections between the objects. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to directions during normal use. The directions "left" and "right" refer to the left-right directions shown in the corresponding schematic diagrams, which may or may not be the left-right directions during normal use.

[0049] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising that element. The term "connected," unless otherwise specified, includes both direct and indirect connections.

[0050] Generally speaking, if Figure 19 As shown, the vehicle's cooling fan forces heat dissipation from the radiator. However, when the vehicle speed is high and the engine load is low, the radiator's required air intake is not very high. In this case, the presence of the cooling fan actually increases the vehicle's wind resistance. Therefore, the cooling fan is typically provided with one or more windows on the fan shroud 3. When the vehicle speed is high, the windows automatically open, reducing the resistance of the cooling fan itself and thus lowering the vehicle's energy consumption. It should be understood that the window refers to a damper on the fan shroud that is similar to a window and can be opened or closed. When the vehicle speed is high, the damper is opened by the oncoming wind.

[0051] However, the existing fan shroud 3 opening method hinges a rectangular flat plate to the fan shroud 5. For example, fan blade A is hinged to the fan shroud 3. When the damper is open, the rectangular plate rotates around the axis. During this rotation, the rectangular plate occupies a certain amount of space perpendicular to the fan shroud 3, which is not conducive to the layout of internal pipelines in the vehicle cabin. Furthermore, because the damper and the shroud are in direct contact, the rectangular plate strikes the fan shroud 3 when the damper is closed, generating noise.

[0052] In view of this, if Figures 1 to 5 As shown, an embodiment of the present application provides a fan wind shield 1, comprising a wind shield body 10 and a wind shield assembly 12. The wind shield body 10 has a through hole 101, a mounting slot 102, and a ventilation hole 103 for mounting a fan. The wind shield assembly 12 has an air guide portion 120. The wind shield assembly 12 is mounted in the mounting slot 102, and the wind shield assembly 12 is slidably connected to the mounting slot 102. When the vehicle speed is less than or equal to a preset value, the wind shield assembly 12 covers the through hole 101. When the vehicle speed is greater than the preset value, the air guide portion 120 is driven by external wind force, driving the wind shield assembly 12 to move along the extension direction of the mounting slot 102 to open the through hole 101.

[0053] Specifically, the hood body 10 has a through hole 101, a mounting groove 102, and a ventilation hole 103 for mounting the fan assembly 11, and the windshield assembly 12 is slidably connected to the mounting groove 102 of the hood body 10. For example, the windshield assembly 12 has an air guide portion 120 formed at an angle, wherein the mounting groove 102 and the hood body 10 are integrally injection molded. When the vehicle speed is less than or equal to a preset value, the windshield assembly 12 covers the through hole 101 under the action of its own weight. When the vehicle speed is greater than the preset value, the external wind force acts on the air guide portion 120, and the windshield assembly 12 moves along the extension direction of the mounting groove 102 to open the through hole 101, reducing the resistance experienced by the vehicle, thereby reducing the energy consumption of the vehicle. When the vehicle speed drops again to less than or equal to the preset value, the windshield assembly 12 covers the through hole 101 again due to its own weight.

[0054] It should be understood that in the existing fan shroud 3, due to the arrangement of the fan blades A and the fan shroud 3, the vehicle's damper often opens or closes under other circumstances, thereby increasing the vehicle's noise. For example, when the vehicle is traveling uphill or downhill, the fan blades A rotate about the rotation axis due to their own weight, automatically opening the damper. In the embodiment of the present application, however, the windshield assembly 12 is slidably connected to the mounting slot 102. The windshield assembly 12 can cover the through hole 101 under its own weight. When the vehicle speed exceeds a preset value, the external wind acts on the air guide portion 120, and the windshield assembly 12 moves along the extension direction of the mounting slot 102, thereby preventing the vehicle's damper from opening or closing under other circumstances.

[0055] In one embodiment, if Figure 6 As shown, the extension direction of the mounting groove 102 is parallel to the first surface 104 of the wind shield body 10. The mounting groove 102 takes up little space and is easy to process. When the vehicle speed is greater than a preset value, the external wind 2 acts on the wind guide portion 120, and the windshield assembly 12 moves in the vertical direction and away from the bottom end of the mounting groove 102 to open the through hole 101. When the vehicle speed drops to less than or equal to the preset value, the windshield assembly 12 moves in the vertical direction and closes the bottom end of the mounting groove 102 to close the through hole 101. Optionally, as Figure 7As shown, the extension direction of the mounting slot 102 is inclined at a preset angle to the first surface 104 of the hood body 10. The external wind 2 only needs to overcome the self-weight component force and friction force of the windshield assembly 12 along the extension direction of the mounting slot 102 to move the windshield assembly 12 along the extension direction of the mounting slot 102. Therefore, according to actual needs, different vehicle speed preset values ​​can be met by adjusting the angle between the extension direction of the mounting slot 102 and the first surface 104 of the hood body 10. It should be understood that the above-mentioned satisfaction of different vehicle speed preset values ​​based solely on the angular relationship between the extension direction of the mounting slot 102 and the first surface 104 of the hood body 10, and the selection of windshield assembly 12 made of different materials to increase or decrease the self-weight of the windshield assembly 12, thereby achieving the goal of changing the self-weight of the windshield assembly 12 to meet different vehicle speed preset values, should not be a limitation before the implementation of this application.

[0056] In one embodiment, the number of windshield components 12 is multiple, the number of through holes 101 is consistent with the number of windshield components 12, and the through holes 101 and the windshield components 12 are arranged in pairs. Specifically, the through holes 101 and the windshield components 12 are both multiple, and the through holes 101 and the windshield components 12 are arranged in pairs. For example, the hood body has 5 through holes 101, and the number of windshield components 12 is also 5. A windshield component 12 is provided at each through hole 101 of the hood body, and the through hole 101 is opened or closed by the windshield component 12. It should be understood that the above description is only based on the example of each through hole 101 being provided with a windshield component 12, and it is not an improper limitation of the embodiments of the present application.

[0057] In some embodiments, as Figure 8 As shown, the number of through holes 101 and windshield components 12 is the same, and multiple windshield components 12 can cover multiple through holes 101. Specifically, the hood body 10 has multiple through holes 101, and the multiple through holes 101 are arranged at intervals, and one windshield component 12 covers one through hole 101. For example, if the hood body 10 has five through holes 101, the number of windshield components 12 is also five, and the surface of the windshield component 12 close to the through hole 101 is larger than the extended surface of the through hole 101, that is, the windshield component 12 can completely cover the through hole 101, so that the vehicle speed is less than or equal to the preset value. Under the action of its own weight, the windshield component 12 covers the through hole 101, reducing the internal circulation wind resistance of the entire vehicle, thereby reducing the energy consumption of the vehicle. For example, when arranging the internal pipelines of a car's cabin, since multiple through holes 101 are arranged in rows and the spacing between adjacent through holes 101 is consistent, it is convenient to arrange the internal pipelines of the cabin in an orderly manner, making the internal pipeline arrangement of the cabin more neat, which is conducive to subsequent maintenance of the internal pipelines of the cabin.

[0058] In one embodiment, there are two mounting slots 102, with each side of the windshield assembly 12 located within a mounting slot 102. Specifically, there are two mounting slots 102, located on either side of the through-hole 101, with each side of the windshield assembly 12 located within a mounting slot 102, thereby improving the smoothness and reliability of the sliding movement of the windshield assembly 12. Specifically, the hood body 10 has a plurality of through-holes 101, the number of windshield assemblies 12 matches the number of through-holes 101, and the number of mounting slots 102 is greater than or equal to the number of windshield assemblies 12.

[0059] In one embodiment, if Figure 9 As shown, the number of windshield components 12 is equal to the number of mounting slots 102, that is, one windshield component 12 is slidably connected along one mounting slot 102, the transverse cross-section of the mounting slot 102 is convex, and the transverse cross-section of the windshield component 12 is convex. The convex portion of the windshield component 12 is arranged in the mounting slot 102, so that when the vehicle speed is greater than a preset value, the windshield component 12 moves along the extension direction of the mounting slot 102 to open the through hole 101. Providing one mounting slot 102 improves space utilization and saves production costs. Or, for example, Figure 3 As shown, the number of mounting slots 102 is twice that of windshield assemblies 12, i.e., one windshield assembly 12 is mounted in two mounting slots 102, the transverse cross-section of the mounting slots 102 is rectangular, and the transverse cross-section of the windshield assembly 12 is rectangular. The mounting slots 102 are located on both sides of the windshield assembly 12, so that when the vehicle speed is greater than a preset value, the windshield assembly 12 moves along the extension direction of the mounting slots 102 to open the through-hole 101. The provision of two mounting slots 102 ensures that the windshield assembly 12 slides more smoothly along the mounting slots 102, and the mounting slots 102 and the windshield assembly 12 are in surface contact sliding connection, which facilitates the control of the roughness of the contact surface between the mounting slots 102 and the windshield assembly 12, thereby increasing or decreasing the sliding resistance of the windshield assembly 12 along the mounting slots 102. At the same time, the roughness of the contact surface between the mounting slots 102 and the windshield assembly 12 can also be controlled to meet different preset vehicle speed values.

[0060] In one embodiment, the fan wind shield 1 further includes a limiter 13, which is connected to the wind shield body 10 and is used to prevent the wind shield assembly 12 from being separated from the mounting slot 102. The working principle of the limiter 13 is briefly described below. Figure 10As shown, the first stopper 13A is located on the first surface 104 of the wind shield body 10. The first stopper 13A is integrally injection-molded with the wind shield body 10 or glued to the first surface 104. The first stopper 13A can be a cube or a cylinder. One windshield assembly 12 can be equipped with one or more first stoppers 13A, all of which are horizontally placed within the maximum sliding displacement path of the windshield assembly 12 to prevent the windshield assembly 12 from moving along the extension direction of the mounting slot 102 and thus detaching from the mounting slot 102 when the vehicle speed exceeds a preset value. The cross-section of the windshield assembly 12 is rectangular, and the transverse cross-section of the mounting slot 102 is rectangular. When the vehicle speed exceeds a preset value, the windshield assembly 12 moves along the mounting slot 102 and abuts against the first stopper 13A, thereby confining at least a portion of the windshield assembly 12 within the mounting slot 102.

[0061] In some embodiments, as Figures 11 to 13 As shown, the second type of stopper 13B is located at the top of the mounting groove 102. The mounting groove 102 has a rectangular cross-section and is located on both sides of the windshield assembly 12. The second type of stopper 13B can optionally be a block structure. The second type of stopper 13B is squeezed to the top of the mounting groove 102 and fixed in the mounting groove 102 by the elastic pressure generated in the mounting groove 102. The bottom end of the windshield assembly 12 has a flange 123. The flange 123 is located on both sides of the windshield assembly 12 and is accommodated in the mounting groove 102. When the vehicle speed exceeds a preset value, the windshield assembly 12 moves along the mounting groove 102 and abuts against the second type of stopper 13B, thereby confining the flange 123 of the windshield assembly 12 in the mounting groove 102 and preventing the windshield assembly 12 from escaping from the mounting groove 102 under this operating condition.

[0062] In some embodiments, the material of the limiter 13 is an elastic material. Specifically, when the vehicle speed is greater than a preset value, the windshield assembly 12 moves along the mounting groove 102 and abuts against the limiter 13. In order to improve the comfort of the vehicle driver and passengers, the impact noise generated when the windshield assembly 12 and the limiter 13 abut is reduced. For example, the material of the limiter 13 is set to elastic rubber. When the vehicle speed drops from greater than the preset value to less than the preset value, the windshield assembly 12 moves along the mounting groove 102 and returns to the bottom of the mounting groove 102. Under this working condition, the windshield assembly 12 and the bottom of the mounting groove 102 will also generate impact noise. Setting the bottom of the mounting groove 102 to an elastic rubber material to absorb the impact can further reduce the noise.

[0063] In one embodiment, if Figure 7As shown, the windshield assembly 12 is tilted at a first preset angle D relative to the hood body 10. Since the windshield assembly 12 moves along the extension direction of the mounting slot 102, it is also tilted at the first preset angle D relative to the hood body 10 along the extension direction of the mounting slot 102. The hood body 10 is vertically disposed. When the vehicle speed exceeds a preset value, the tilted arrangement of the windshield assembly 12 at the first preset angle D relative to the hood body 10 causes the external force component to overcome the self-weight component force and friction force of the windshield assembly 12 along the first preset angle D, causing the windshield assembly 12 to move in the extension direction of the mounting slot 102. It should be noted that since the windshield assembly 12 is tilted at the first preset angle D relative to the hood body 10, when the vehicle speed exceeds the preset value, the windshield assembly 12 abuts against the first surface 104 of the hood body 10, preventing the windshield assembly 12 from disengaging from the mounting slot 102. This eliminates the need for an additional stopper 13, reducing the number of parts and assembly time.

[0064] In one embodiment, the windshield assembly 12 includes a sliding plate 121 and an air guide plate 122, and the air guide plate 122 is fixedly connected to the sliding plate 121. The air guide plate 122 and the sliding plate 121 can be injection molded as one piece, or the air guide plate 122 and the sliding plate 121 can be bonded together with glue. Injection molding the air guide plate 122 and the sliding plate 121 as one piece helps to reduce assembly time. The air guide plate 122 and the sliding plate 121 can be bonded together with glue to select the installation position of the air guide plate 122 according to actual needs, so that the position of the air guide plate 122 can be changed in the future if there are requirements for internal wiring. For example, Figures 14 and 15 As shown, the structure of the wind deflector 122 can be optionally a right triangular prism or a rectangular parallelepiped. The right triangular prism and the sliding plate 121 are arranged at a second preset angle E to form a wind deflector 120. When the vehicle speed is less than or equal to a preset value, the external wind 2 acts on the wind deflector 120. At this time, the windshield assembly 12 overcomes the external wind 2 under the action of its own weight, and the windshield assembly 12 does not move, covering the through-hole 101, and the through-hole 101 cannot be ventilated. When the vehicle speed exceeds the preset value, the external wind 2 acts on the wind deflector 120. At this time, the component of the external wind 2 in the direction of the extension of the installation slot 102 is greater than the self-weight component and friction component of the windshield assembly 12 in the direction of the extension of the installation slot 102. The windshield assembly 12 moves along the extension direction of the installation slot 102 to open the through-hole 101, reducing the resistance experienced by the vehicle, thereby reducing the vehicle's energy consumption. When the vehicle speed drops again to a value less than or equal to the preset value, the force component of the external wind 2 in the direction of the mounting slot 102 and the friction force of the windshield assembly 12 along the direction of the mounting slot 102 are less than the force component of the windshield assembly 12's own weight in the direction of the mounting slot 102, and the through-hole 101 is again covered. It should be noted that different second preset angles E result in different force components of the external wind 2 in the direction of the mounting slot 102. In other words, by controlling the arrangement of the second preset angle E, different preset vehicle speed values ​​can be met.

[0065] In one embodiment, the material of the hood body 10 and the windshield assembly 12 are both a mixture of plastic and glass fiber, or PA66-GF30. Specifically, the material of the hood body 10 is a mixture of plastic and glass fiber, or the material of the hood body 10 is PA66-GF30; the material of the windshield assembly 12 is a mixture of plastic and glass fiber, or the material of the windshield assembly 12 is PA66-GF30. While meeting the use requirements, the weight of the hood body 10 and the windshield assembly 12 is reduced, thereby reducing the energy consumption of the car and improving the performance of the car. In particular, the hood body 10 and the windshield assembly 12 are both injection molded, which improves the production efficiency of the hood body 10 and the windshield assembly 12. For example, plastic is injected into the mold of the hood body 10, and the hood body 10 is formed after cooling, or plastic is injected into the mold of the windshield assembly 12, and the windshield assembly 12 is formed after cooling.

[0066] like Figure 16 As shown, the present application also provides a fan assembly for a vehicle, including a fan shield 1 and a fan assembly 11 , wherein the fan assembly 11 is installed in the ventilation hole 103 of the fan shield 1 .

[0067] Specifically, the fan assembly 11 is mounted in the ventilation hole 103 of the fan shroud 1, dissipating heat from the vehicle's radiator through the fan assembly 11 and the fan shroud 1. The windshield assembly 12 is mounted in the mounting slot 102. The windshield assembly 12 is slidably connected to the mounting slot 102, thereby preventing the windshield assembly 12 from colliding with the first surface 104 of the shroud body 10 and generating noise during the opening or closing of the through hole 101. Furthermore, the windshield assembly 12 only slides in the direction in which the mounting slot 102 extends, reducing the space required for the windshield assembly 12 to move, thereby facilitating the arrangement of other components of the fan assembly, such as the internal piping of the fan assembly.

[0068] It should be noted that when forced cooling of the radiator is required, the fan assembly 11 operates to achieve forced cooling of the radiator. When the vehicle speed is high and the engine load is low, the radiator requires less air intake, and the through hole 101 of the fan shield 1 automatically opens, thereby reducing the resistance of the fan assembly and thus reducing the energy consumption of the entire vehicle.

[0069] In order to better understand the fan wind shield 1 of the embodiment of the present application, Figures 17 and 18 The process of opening or closing the through hole 101 by the windshield assembly 12 is described.

[0070] The windshield assembly 12 is mounted in the mounting slot 102 and is slidably connected to the mounting slot 102. When the vehicle is in operation and the vehicle speed is less than or equal to a preset value, the windshield assembly 12 naturally droops due to gravity, at which point the windshield assembly 12 covers the through-hole 101 in the hood body 10. When the vehicle speed exceeds the preset value, the speed of the external wind 2 increases, acting on the wind guide portion. At this time, the external wind force component in the direction of the mounting slot 102 is greater than the self-weight force and friction force of the windshield assembly 12 in the direction of the mounting slot 102. The windshield assembly 12 moves along the direction of the mounting slot 102 to abut against the stopper 13, thereby opening the through-hole 101 and reducing the resistance experienced by the vehicle, thereby lowering the vehicle's energy consumption. The stopper 13 prevents the windshield assembly 12 from disengaging from the mounting slot 102. When the vehicle speed drops again to less than or equal to the preset value, the windshield assembly 12 returns to the initial position and covers the through hole 101 due to gravity.

[0071] The fan guard of the present application can be applied to general automotive electronic fans. Due to its flat window design, it offers high space utilization and can optimize the layout of fans and engine compartment piping. This is particularly beneficial in fuel cell vehicles and hybrid vehicles, which require a high level of engine compartment space. Furthermore, direct contact and collision between the windshield assembly 12 and the guard body 10 are prevented, minimizing the risk of abnormal noise.

[0072] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present application.

Claims

1. A fan wind shield, characterized in that: include: The fan cover body has a through hole, a mounting slot and a ventilation hole for mounting a fan assembly; as well as A windshield assembly having a wind guide portion, the windshield assembly being slidably connected to the mounting slot, the wind guide portion being arranged at an angle; Among them, when the vehicle's driving speed is less than or equal to a preset value, the wind shield assembly covers the through hole; when the vehicle's driving speed is greater than the preset value, the component of the external wind force applied to the wind guide portion in the extension direction of the installation slot is greater than the self-weight component and friction component of the wind shield assembly in the extension direction of the installation slot, and the wind guide portion drives the wind shield assembly to move along the installation slot against the wind to open the through hole.

2. The fan wind shield according to claim 1, wherein: There are multiple windshield components, the through holes are consistent in number with the windshield components, and the through holes and the windshield components are arranged in pairs.

3. The fan wind shield according to claim 1, wherein: There are two mounting slots, and both sides of the windshield assembly are respectively located in one mounting slot.

4. The fan wind shield according to claim 1, wherein: The fan wind shield further includes a limiting member connected to the wind shield body, and the limiting member is used to limit the wind shield assembly from being separated from the mounting slot.

5. The fan wind shield according to claim 4, wherein: The material of the limiting member is elastic material.

6. The fan wind shield according to claim 1, wherein: The wind shield assembly and the wind shield body are arranged in an inclined shape at a first preset angle.

7. The fan wind shield according to claim 1, wherein: The windshield assembly comprises: Sliding panels; and The wind guide plate is fixedly connected to the sliding plate, and the wind guide plate and the sliding plate are inclined at a second preset angle to form the wind guide portion.

8. The fan wind shield according to claim 1, wherein: The wind shield body and the wind shield assembly are both injection molded.

9. The fan wind shield according to claim 1, wherein: The material of the wind shield body is a mixture of plastic and glass fiber; and / or, The material of the windshield component is a mixed material of plastic and glass fiber.

10. The fan wind shield according to claim 9, wherein: The material of the air hood body is PA66-GF30; and / or, The material of the windshield component is PA66-GF30.

11. A fan assembly for a vehicle, characterized in that: include: The fan wind shield according to any one of claims 1 to 10; as well as A fan assembly is installed in the ventilation hole of the fan wind shield.

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