Helmet wind noise reduction device

Abstract

The utility model discloses a helmet wind noise reduction device which comprises a base layer, a turbulent flow layer and a fixing piece, the turbulent flow layer is arranged on the base layer, the fixing piece is arranged on the base layer, and the fixing piece is used for fixing the base layer on a connecting belt, located on the front side of an ear, of a helmet. The device can be installed on a connecting belt, located on the front sides of ears, of a helmet, airflow can be disturbed through the turbulent flow layer, impact on the ears is reduced, therefore, wind noise can be reduced, and the noise reduction mode is simple and convenient to achieve.

Description

Technical Field

[0001] This utility model relates to the field of helmet noise reduction, and in particular to a helmet wind noise reduction device. Background Technology

[0002] In existing technologies, people typically wear protective gear such as... when riding electric bikes or bicycles. Figure 1 The helmet shown has exposed ears, which generates significant wind noise near the ears when riders are moving at higher speeds. Continuous wind noise can cause discomfort for cyclists, and excessive wind noise can impair their auditory perception of their surroundings, distract them, and affect their judgment of traffic conditions. Therefore, it is necessary to design a helmet wind noise reduction device. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a helmet wind noise reduction device.

[0004] The technical solution of this utility model is as follows: a helmet wind noise reduction device, characterized in that it includes: a base layer, a turbulence layer and a fixing member, wherein the turbulence layer is provided on the base layer, and the fixing member is provided on the base layer, and the fixing member is used to fix the base layer to the connecting strap of the helmet located in front of the ears.

[0005] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0006] This device can be installed on the connecting strap in front of the ears of the helmet. It uses a spoiler layer to disturb the airflow and reduce the impact on the ears, thereby reducing wind noise. This noise reduction method is simple and easy to implement.

[0007] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the present invention installed on a helmet;

[0010] Figure 2 This is a schematic diagram of the present invention;

[0011] Figure 3 This is a schematic diagram of the present invention.

[0012] Figure label:

[0013] 1. Base layer; 2. Turbulence layer; 3. Fixtures. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "vertical," "circumferential," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] like Figure 2 and Figure 3 The helmet wind noise reduction device shown includes: a base layer 1, a spoiler layer 2, and a fastener 3. The spoiler layer 2 is provided on the base layer 1, and the fastener 3 is provided on the base layer 1. The fastener 3 is used to fix the base layer 1 to the connecting strap of the helmet located in front of the ears.

[0018] In practical applications, the base layer 1 of this device is a soft cloth layer, the turbulence layer 2 is a soft wool layer, and the fastener 3 is a hook layer of Velcro. The hook layer and the turbulence layer 2 are located on the same side of the base layer 1.

[0019] When using, Figure 1 Taking the helmet shown as an example, the base layer 1 is placed on the front strap of the triangular connecting strap next to the ear of the helmet. The adhesive hook layer will hook onto the back of the base layer 1, thereby fixing the device. Thus, when the user wears the helmet, the airflow is disturbed after passing through the deflector layer 2, reducing the impact on the ears and thus reducing wind noise. This noise reduction method is simple and easy to implement.

[0020] It should be noted that this device does not restrict the type of helmet, as long as the helmet has a connecting strap located in front of the ears. In addition, the structure and material of the base layer 1, the spoiler layer 2, and the fastener 3 of this device are not limited, and those skilled in the art can make adjustments according to actual needs.

[0021] This device underwent subsequent noise reduction testing, and the testing process is as follows:

[0022] 1. Testing equipment: Helmet wind noise reduction device

[0023] Main function: Reduce noise generated during cycling.

[0024] Measuring instrument: Red sound decibel meter, model: HS5633

[0025] 2. Testing Methods

[0026] The probe of the decibel meter was placed directly into the ear canal to measure the noise level while moving.

[0027] Test environment

[0028] 1. Test site: Indoor closed circular track

[0029] 2. Environmental conditions: Temperature 32°C, Humidity 50%

[0030] 3. Test time: 20240808

[0031] Test steps

[0032] Step 1: Ride without noise reduction devices and measure the background noise and the noise level generated by riding using a noise meter.

[0033] Step 2: Install the noise reduction device and repeat the test under the same conditions, recording the noise level.

[0034] Step 3: Compare and analyze the noise data with and without noise reduction devices, and calculate the noise reduction magnitude.

[0035] 3. Noise parameters

[0036] 1. Noise measurement range: 0-120dB

[0037] 2. Measurement distance: 1.2 meters above the ground

[0038] 3. Measurement speed: 40km / h

[0039] 4. Measurement time: 15 seconds per group

[0040] Test Results

[0041] Noise level without noise reduction device

[0042] 1. Average noise level: 85 dB(A)

[0043] 2. Maximum noise level: 92 dB(A)

[0044] Noise level after using noise reduction device

[0045] 1. Average noise level: 77 dB(A)

[0046] 2. Maximum noise level: 82 dB(A)

[0047] Noise reduction

[0048] 1. Average reduction: 8 dB(A)

[0049] 2. Maximum reduction: 10 dB(A)

[0050] 4. Conclusion

[0051] According to the test results, the noise reduction device effectively reduces noise levels during cycling. Specifically, the average noise reduction is 8 dB(A), and the maximum noise reduction is 10 dB(A). These results indicate that the device is significantly effective in reducing cycling noise.

[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A helmet wind noise reduction device, characterized in that, include: The helmet comprises a base layer, a spoiler layer, and a fastener, wherein the spoiler layer is disposed on the base layer, and the fastener is disposed on the base layer for securing the base layer to a connecting strap located in front of the ears.

2. The helmet wind noise reduction device according to claim 1, characterized in that, The base layer is a soft cloth layer.

3. The helmet wind noise reduction device according to claim 1, characterized in that, The turbulence layer is a soft, fibrous layer.

4. The helmet wind noise reduction device according to claim 1, characterized in that, The fastener is a hook layer of Velcro, and the hook layer and the turbulence layer are located on the same side of the base layer.

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