Eddy current rainproof device of automobile outside rear-view mirror
By installing a vortex generator on the car's exterior rearview mirror and using a guide vane structure to convert airflow into vortices, the problem of obstructed vision in rainy weather is solved, achieving a simple and effective rainproof effect.
Patent Information
- Application Number
- CN202423192169.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-24
AI Technical Summary
When driving in the rain, raindrops easily adhere to existing car exterior rearview mirrors, obstructing visibility. Existing heating functions are ineffective, and active air blowing solutions are complex and costly.
A vortex generator is installed on the outside of the car's exterior rearview mirror. The irregular turbulence is transformed into regular vortices through the guide vane structure, reducing the adhesion of rainwater.
It effectively prevents rainwater from adhering when driving in rainy weather, improves the driver's visibility, has a simple structure, low cost, and wide applicability.
Smart Images
Figure CN223803489U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle accessory technical field, concretely is a kind of automobile exterior rearview mirror vortex rainproof device. BACKGROUND
[0002] In rainy day driving, automobile exterior rearview mirror can be attached to a large number of raindrops, so as to affect driving safety. At present, the rearview mirror of part of automobile has heating function, but in the weather of heavy rainfall and highway driving, the speed of heating evaporation is often less than the accumulation speed of raindrop, and rainwater can still stick on the rearview mirror, causing sight obstruction.
[0003] In addition, part of product is equipped with rain eyebrow on the top of rearview mirror, and the effect is poor due to not considering the movement law of raindrop along airflow field in vehicle driving. In addition, there is an active blowing scheme, which can solve the problem of rearview mirror rainproof, involves electromechanical control, complex structure, high cost, and is difficult to promote. UTILITY MODEL CONTENT
[0004] To solve the problems presented in the above background art, the utility model embodiment provides an automobile exterior rearview mirror vortex rainproof device. The rainproof device of the utility model does not need complex heating and electromechanical control, and only by installing a plurality of vortex generators on the outside of automobile exterior rearview mirror, the irregular turbulence generated by airflow through the exterior rearview mirror is changed into regular vortex, so as to reduce the rainwater attachment on the rearview mirror, and achieve the purpose of rainproof.
[0005] The utility model embodiment is realized as follows:
[0006] An automobile exterior rearview mirror vortex rainproof device, comprising a plurality of vortex generators;
[0007] The plurality of vortex generators are installed on the rearview mirror shell, and the rearview mirror shell is installed on the outside of the vehicle body.
[0008] The vortex generator adopts a guide vane structure, and the guide vane structure has a plurality of streamline sections from large to small.
[0009] Further, the guide vane structure has N streamline sections, and the cross sections of the N streamline sections increase in turn along the direction from the root to the tip of the guide vane structure.
[0010] Further, the streamline section adopts an airfoil shape with a bending degree.
[0011] Further, the leading edge of the streamline section has a backward sweep angle from the root to the tip.
[0012] Further, the trailing edge of the streamline section has a backward sweep angle from the root to the tip.
[0013] Further, the airfoil section has a twist angle from the root to the tip towards the inside of the curvature of the center line of the section.
[0014] Further, the airfoil section has a twist angle from the root to the tip towards the inside of the curvature of the center line of the section.
[0015] Compared with the prior art, the automobile rearview mirror vortex rainproof device has the advantages that: when the automobile rearview mirror provided with the rainproof device is used, the airflow on the outer periphery surface of the automobile rearview mirror changes the flow field in the rear area of the automobile rearview mirror when flowing through the surface of the vortex generator, so that stable vortex is formed, and the rainwater is reduced from being rolled to the mirror surface; the vortex rainproof device can also form a downward washing airflow on the side window, which is beneficial to taking away the rainwater on the side window and improving the driver's field of view.
[0016] In summary, the rainproof device has the vortex generator with the guide vane structure, can realize effective rainproof function for the automobile rearview mirror, and has the advantages of simple structure, convenient installation, low cost and wide application compared with the traditional active air blowing scheme. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application.
[0018] Figure 1 FIG. 1 is a structural diagram of the automobile rearview mirror vortex rainproof device of the present application;
[0019] Figure 2 FIG. 2 is a top view of the automobile rearview mirror vortex rainproof device provided by the present application; Figure 1 FIG. 3 is a schematic diagram of the vortex rainproof device provided by the present application installed on the automobile rearview mirror.
[0020] Figure 3 FIG. 4 is a schematic diagram of the vortex rainproof device provided by the present application installed on the automobile rearview mirror.
[0021] The signs are as follows:
[0022] 1, rearview mirror shell; 2, vortex generator; 21, first airfoil section; 22, second airfoil section; 23, third airfoil section; 3, vehicle body. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.
[0024] The specific implementation of the utility model is described in detail below in combination with specific embodiments.
[0025] As Figures 1-3 shown in the utility model embodiment, a vortex flow rainproof device for automobile outside rearview mirror is provided, the rainproof device comprises a plurality of vortex generators 2; the plurality of vortex generators 2 are installed on the rearview mirror shell 1;
[0026] The utility model's rearview mirror shell 1 is the vehicle outside rearview mirror;
[0027] The rearview mirror shell 1 is installed on the outside of the vehicle body 3;
[0028] Therefore, the rainproof device of the utility model is applied to the outside rearview mirror of vehicle.
[0029] The vortex generator 2 of the utility model adopts the flow guide vane structure, the flow guide vane structure has N streamline cross sections, N≥1, N is positive integer;Wherein, along the direction from the root to the tip of the flow guide vane structure, the cross section of the N streamline cross sections of the utility model increases successively;
[0030] The specific number of the streamline cross section of the flow guide vane structure of the utility model is not limited;
[0031] Exemplarily, as Figure 1 shown, the flow guide vane structure of the utility model has three streamline cross sections, and the three streamline cross sections are first streamline cross section 21, second streamline cross section 22 and third streamline cross section 23, the cross section of first streamline cross section 21 is greater than the cross section of second streamline cross section 22, and the cross section of second streamline cross section 22 is greater than the cross section of third streamline cross section 23.
[0032] The streamline cross section of the utility model adopts the airfoil shape with the bending, preferably the large bending airfoil, can be same airfoil, also can be different type, and the specific number is not limited;
[0033] As preferred, the leading edge of the plurality of cross sections has a backward sweep angle from the root to the tip;
[0034] As preferred, the trailing edge of the plurality of cross sections has a backward sweep angle from the root to the tip;
[0035] As preferred, the plurality of cross sections has a torsion angle from the root to the tip to the inside of the cross section center line bending;
[0036] As preferred, the plurality of cross sections has an inward inclination angle from the root to the tip to the inside of the cross section center line bending.
[0037] The utility model discloses a vortex generator 2 of different size, shape is installed in the front, inboard, upside, downside position etc. of rear -view mirror shell 1, changes the flow field state of the outside rear -view mirror area in the process of car driving, thereby reduces rainwater adhesion, reaches rain -proof effect;
[0038] When the vehicle is driving, the water mark on the vehicle outside rear -view mirror mirror surface mainly comes from the water on the upper and lower surfaces of the rear -view mirror shell 1 is separated at the rear -view mirror edge, enters the spindle irregular vortex area behind the rear -view mirror, and then is rolled to the rear -view mirror mirror surface, therefore, the airflow on the outer periphery surface of the vehicle rear -view mirror changes the rear -view mirror rear area flow field when flowing through the surface of vortex generator 2, forms stable vortex, reduces the rainwater rolled to the mirror.
[0039] Optionally, the utility model provides a plurality of vortex generators 2 are arranged on the rear -view mirror shell 1, Figure 3 It is shown that four vortex generators 2 are arranged on the upside of rear -view mirror shell 1;However, the rain -proof device of the utility model can set multiple vortex generators 2 along the four sides of the rear -view mirror shell 1 in the specific implementation, and in the process of realizing rain -proof effect, the front part of the vortex generator 2 divides the airflow, so that the vehicle rear -view mirror forms spiral vortex, and the spiral direction of vortex is related to the direction of the vortex generator 2 installed on the rear -view mirror shell 1;
[0040] Further, the upside vortex generator 2 of the rear -view mirror shell 1 extrudes the outside rear -view mirror separation airflow to the inside of the vehicle body, and the lower side vortex generator 2 extrudes the outside rear -view mirror separation airflow to the outside of the vehicle body, so as to facilitate the rainwater to flow and separate to the outside of the vehicle window, and the inboard vortex generator 2 flow guide vane extrudes the outside rear -view mirror separation airflow downward, so as to facilitate the formation of the downwash airflow at the vehicle window.
[0041] Therefore, the utility model can also form downwash airflow at the side window, which is beneficial to take away the rainwater of the side window and improve the driver's field of view.
[0042] To sum up, the rain -proof device of the utility model can realize effective rain -proof function for the vehicle outside rear -view mirror through the vortex generator with flow guide vane structure, and compared with the traditional active blowing scheme, the structure is simple, convenient to install, low in cost and widely applicable.
[0043] The above schemes are only a description of a preferred example, but not limited to this. In the implementation of the utility model, proper replacement and / or modification can be made according to the user's demand.
[0044] The number of devices and the scale of processing described here are used to simplify the description of the utility model. The application, modification and change of the utility model are obvious to those skilled in the art.
[0045] While the embodiments of the application have been disclosed as above, it is not limited to the use listed in the specification and the embodiments. It can be fully applied to various fields suitable for the application. For those skilled in the art, other modifications can be easily realized. Therefore, the application is not limited to specific details and the figures shown and described herein without departing from the general concept defined by the claims and the equivalent scope.
Claims
1. A vortex rainproof device for an automobile outside rearview mirror, comprising a plurality of vortex generators (2); characterized in that: the plurality of vortex generators (2) are installed on a rearview mirror housing (1) which is installed on the outside of a vehicle body (3); the vortex generator (2) adopts a spoiler structure which has a plurality of streamlined sections from large to small; the spoiler structure has N streamlined sections, and the sections of the N streamlined sections increase in turn in the direction from the root to the tip of the spoiler structure; the streamlined section adopts an airfoil shape with a curvature; the leading edge of the streamlined section has a backward sweep angle from the root to the tip; the trailing edge of the streamlined section has a backward sweep angle from the root to the tip.
2. The automotive exterior rearview mirror rain sensor according to claim 1, wherein, the streamlined section has a twist angle from the root to the tip in the direction of the inside of the curvature of the center line of the section.
3. The automotive exterior rearview mirror rain sensor according to claim 2, wherein, the streamlined section has a dihedral angle from the root to the tip in the direction of the inside of the curvature of the center line of the section.