Rearview mirror lower mirror shell with wind noise reducing structure
By setting a semi-enclosed structure above the water leakage hole of the rearview mirror housing, including columnar and dome parts, the problem of wind noise affecting driver safety is solved, and wind noise is effectively reduced to ensure driver safety.
Patent Information
- Application Number
- CN202520307402.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The existing rearview mirror structure causes wind noise problems that affect the driver's safe driving and cannot effectively reduce wind noise to below the standard value.
A semi-enclosed structure is set above the drainage hole of the lower mirror housing of the rearview mirror. It includes a semi-cylindrical columnar part and a semi-dome part to form a structure that reduces wind noise. It is integrated with the lower mirror housing substrate by one-piece injection molding, covering 60-80% of the top of the drainage hole and 1.3-2 times the distance from the drainage hole, forming a smooth or sound-absorbing structure.
It effectively reduces wind noise, prevents oncoming wind from entering the rearview mirror, ensures safe driving, and reduces wind noise to below the standard value.
Smart Images
Figure CN223778273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rearview mirror lower housing, specifically a rearview mirror lower housing with a wind noise reduction structure that reduces wind noise below a standard value and does not affect the driver's safe driving. Background Technology
[0002] Figure 1 This is a schematic diagram of the external structure of a rearview mirror. Figure 2 This is a schematic diagram of the internal structure of a rearview mirror without wind noise reduction features. Figure 3 A diagram illustrating wind noise caused by oncoming wind directly entering the rearview mirror, as shown. Figure 1-3 As shown, the current rearview mirrors on the market all have a through-hole type drainage hole 1. When the car is driving, the oncoming wind blows directly into the interior of the rearview mirror through the drainage hole. Because the interior of the rearview mirror has many complex parts, it will generate different noises when receiving strong winds from the outside. The noise generated will affect the driver's senses and affect the driver's safe driving. Utility Model Content
[0003] To address the aforementioned problems, the main objective of this utility model is to provide a rearview mirror lower housing with a wind noise reduction structure that reduces wind noise below a standard value and does not affect the driver's safe driving.
[0004] The present invention solves the above-mentioned technical problems through the following technical solution: a rearview mirror lower housing with a wind noise reduction structure, the rearview mirror lower housing with a wind noise reduction structure includes: a water leakage hole, the water leakage hole is located on the lower housing of the rearview mirror, and a wind noise reduction structure is provided above the water leakage hole.
[0005] The structure that reduces wind noise is a semi-enclosed structure, which partially surrounds the airflow direction of the drainage hole.
[0006] The wind noise reduction structure includes a semi-cylindrical columnar section and a semi-circular dome section. The columnar section is fixed around the water leakage hole, and the semi-circular dome section is located directly above the water leakage hole. The columnar section and the semi-circular dome section are integrally formed.
[0007] In a specific embodiment of this utility model, both the outer and inner surfaces of the semi-enclosed structure are smooth.
[0008] In a specific embodiment of this utility model, the distance between the top of the semi-enclosed structure and the top of the drain hole is 1.3-2 times the diameter of the drain hole.
[0009] In a specific embodiment of this utility model, the distance between the top of the semi-enclosed structure and the top of the drain hole is 1.5 times the diameter of the drain hole.
[0010] In a specific embodiment of this utility model, the distance between the top of the semi-enclosed structure and the top of the drain hole is 10-25mm.
[0011] In a specific embodiment of this utility model, the semi-circular dome portion covers 60-80% of the top of the drain hole.
[0012] In a specific embodiment of this utility model, the wind noise reduction structure and the lower mirror shell substrate are integrally injection molded.
[0013] The positive and progressive effects of this utility model are as follows: Compared with common technologies, the rearview mirror lower housing with wind noise reduction structure provided by this utility model has the following advantages: This utility model adds a wind noise reduction structure to the reverse side of the water leakage hole of the lower housing, so that the oncoming wind will not blow into the interior of the rearview mirror, thus reducing the wind noise of the rearview mirror to below the standard value and not affecting the driver's safe driving. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the external structure of a rearview mirror.
[0015] Figure 2 This is a schematic diagram of the internal structure of a rearview mirror without wind noise reduction features.
[0016] Figure 3 This diagram illustrates how wind noise is generated when oncoming wind directly enters the rearview mirror.
[0017] Figure 4 This is a schematic diagram of the internal structure of the rearview mirror with a wind noise reduction feature.
[0018] Figure 5 This is a diagram illustrating how the wind is blocked from the rearview mirror.
[0019] Figure 6 This is one of the structural diagrams for a wind noise reduction structure.
[0020] Figure 7 The second structural diagram of the wind noise prevention structure.
[0021] Figure 8 The third structural diagram of the wind noise prevention structure.
[0022] Figure 9-1 This is one of the renderings of a wind noise reduction structure.
[0023] Figure 9-2 The second rendering shows the structure designed to prevent wind noise.
[0024] The following are the names corresponding to the reference numerals in this utility model:
[0025] 1. Drain hole; 2. Lower mirror housing; 3. Wind noise reduction structure; 301. Columnar part; 302. Dome part. Detailed Implementation
[0026] The preferred embodiments of this utility model are given below with reference to the accompanying drawings to illustrate the technical solution of this utility model in detail.
[0027] Figure 4 This is a schematic diagram of the internal structure of the wind noise reduction feature on the rearview mirror, such as... Figure 4 As shown, this utility model proposes a rearview mirror lower housing with a wind noise reduction structure. The rearview mirror lower housing with a wind noise reduction structure includes: a drainage hole 1, which is located on the lower housing 2 of the rearview mirror. A wind noise reduction structure 3 is provided above the drainage hole 1. The wind noise reduction structure 3 is a semi-enclosed structure, surrounding the direction of the incoming wind from the drainage hole 1. The wind noise reduction structure 3 includes a semi-cylindrical columnar portion 301 and a dome portion 302. The columnar portion 301 is fixed around the drainage hole 1, and the dome portion 302 is located directly above the drainage hole 1. The columnar portion 301 and the dome portion 302 are integrally formed.
[0028] Figure 6 This is one of the structural diagrams for a wind noise reduction structure. Figure 7 The second structural diagram for wind noise reduction. Figure 8 The third structural diagram for wind noise reduction. Figure 9-1 This is one of the renderings of a wind noise reduction structure. Figure 9-2 The second illustration shows the effect of the wind noise reduction structure. As shown in the figure above, the outer and inner sides of the semi-enclosed structure in this utility model are both smooth. In specific implementation, it can be a rough internal sound-absorbing structure or other sound-absorbing structures.
[0029] In the specific implementation of this utility model, the distance between the top of the semi-enclosed structure and the top of the drain hole is 1.3-2 times the diameter of the drain hole, preferably 1.5 times; the distance between the top of the semi-enclosed structure and the top of the drain hole is 10-25mm; the semi-enclosed structure covers 60-80% of the top of the drain hole. In specific implementations, other values or ranges of the above parameters can be selected.
[0030] In the specific implementation of this utility model, the wind noise reduction structure and the lower mirror shell substrate are generally adopted as an integral injection molding structure.
[0031] Figure 3 This diagram illustrates the wind noise generated when oncoming wind directly enters the rearview mirror. Figure 5 This is a diagram illustrating how the wind is blocked by the rearview mirror. (Comparison) Figure 3 and Figure 5 As can be seen from the direction of the middle arrow, after adding this wind noise reduction structure, the oncoming wind is blocked, and no wind enters the rearview mirror, so the rearview mirror will not generate noise.
[0032] This invention adds a wind noise reduction structure to the reverse side of the water leakage hole in the lower mirror housing, so that the oncoming wind will not blow into the interior of the rearview mirror, thus reducing the wind noise of the rearview mirror to below the standard value and not affecting the driver's safe driving.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A rearview mirror lower housing with a wind noise reduction structure, characterized in that: The rearview mirror lower housing with wind noise reduction structure includes: a water leakage hole located on the lower housing of the rearview mirror, and a wind noise reduction structure disposed above the water leakage hole. The wind noise reduction structure is a semi-enclosed structure, which partially encloses the airflow direction of the drainage hole. The wind noise reduction structure includes a semi-cylindrical columnar section and a semi-circular dome section. The columnar section is fixed around the water leakage hole, and the semi-circular dome section is located directly above the water leakage hole. The columnar section and the semi-circular dome section are integrally formed.
2. The rearview mirror housing with wind noise reduction structure according to claim 1, characterized in that: The semi-enclosed structure has a smooth exterior and interior.
3. The rearview mirror housing with wind noise reduction structure according to claim 1, characterized in that: The distance between the top of the semi-enclosed structure and the top of the drain hole is 1.3-2 times the diameter of the drain hole.
4. The rearview mirror housing with wind noise reduction structure according to claim 3, characterized in that: The distance between the top of the semi-enclosed structure and the top of the drain hole is 1.5 times the diameter of the drain hole.
5. The rearview mirror housing with wind noise reduction structure according to claim 1, characterized in that: The distance between the top of the semi-enclosed structure and the top of the drain hole is 10-25mm.
6. The rearview mirror housing with wind noise reduction structure according to claim 1, characterized in that: The semi-circular dome covers 60-80% of the top of the drain hole.
7. The rearview mirror lower housing with wind noise reduction structure according to any one of claims 1-6, characterized in that: The structure that reduces wind noise and the lower mirror housing substrate are integrally injection molded.