Noise reduction structure for airflow of seat massage system

Abstract

The invention provides a seat massage system airflow noise reduction structure, which comprises an airflow on-off control element, the airflow on-off control element is respectively connected with an air inlet pipe and an air outlet pipe, a noise reduction structure for reducing airflow noise is arranged in the air inlet pipe and / or the air outlet pipe, the noise reduction structure comprises a brush rod, a plurality of brush hair groups are arranged on the brush rod, and the brush hair groups are connected with the air inlet pipe and the air outlet pipe. The brush hair sets are arranged at equal intervals, the two ends of the brush hair sets abut against the inner wall of the air inlet pipe or the air outlet pipe, when airflow passes through the brush hair sets, the airflow is evenly dispersed, therefore, airflow noise is reduced, meanwhile, the needed airflow amount is guaranteed, and the silencing structure is arranged, so that installation is easy, the installation speed is high, the material cost is low, the yield is high, and the airflow noise is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the field of automotive seat comfort configurations, and particularly to a sound - damping structure for the air flow of a seat massage system. Background Art

[0002] With the popularization of automobiles, people not only put forward higher requirements for the brand, safety and quality of automobiles, but also pay more attention to driving comfort. In order to reduce the fatigue caused by long - time driving, a pneumatic lumbar support is usually installed on the car seat. During the operation of the pneumatic lumbar support, the inflation and deflation of the airbag by the lumbar support system generate a comfortable personalized curve support for the passenger's waist, which can effectively reduce the muscle fatigue caused by long - time driving and effectively relieve the lumbar fatigue and tiredness caused by long - time driving.

[0003] For the sub - assembly parts system of the lumbar support massage system, noise control is of utmost importance. Among them, reducing the air flow sound is the primary problem to be solved. While pursuing a high lifting height within the rated time, the air flow sound also needs to be reduced, which requires finding a balance between the two.

[0004] In the prior art, the current sound - damping solutions in the industry use a sound - damping stone structure of PE sintered body or metal sintered body in the air pipe. The installation is difficult. Inaccurate installation may cause scratches on the air pipe, reducing its service life and posing risks in long - term use. Moreover, this solution has high material costs and high manual assembly costs. Summary of the Invention

[0005] Therefore, in order to solve the above - mentioned technical problems, the present invention proposes a sound - damping structure for the air flow of a seat massage system, which includes a control element 10 for air flow on - off. The control element 10 for air flow on - off is respectively connected with an air inlet pipe 20 and an air outlet pipe 30. A sound - damping structure 40 for reducing air flow noise is provided in the air inlet pipe 20 and / or the air outlet pipe 30. The sound - damping structure 40 includes a brush rod 401, and a number of brush hair groups 402 are provided on the brush rod 401 and are evenly spaced. The two ends of the brush hair group 402 are in contact with the inner wall of the air inlet pipe 20 or the air outlet pipe 30. When the air flow passes through, the air flow is evenly dispersed, thereby reducing the air flow noise and ensuring the required air flow rate. By providing the sound - damping structure, not only the installation is simple, the installation speed is fast, the material cost is low, and the yield rate is high, but also the air flow noise is greatly reduced.

[0006] A soundproof structure for the air flow of a seat massage system, including a control element 10 for the on-off of the air flow. The control element 10 for the on-off of the air flow is respectively connected with an air inlet pipe 20 and an air outlet pipe 30. A soundproof structure 40 for reducing the air flow noise is arranged in the air inlet pipe 20 and / or the air outlet pipe 30. The soundproof structure 40 includes a brush rod 401, and a number of brush hair groups 402 are arranged on the brush rod 401 and are evenly spaced. The two ends of the brush hair group 402 are in contact with the inner wall of the air inlet pipe 20 or the air outlet pipe 30. When the air flow passes through, the air flow is evenly dispersed, thereby reducing the air flow noise and ensuring the required air flow rate.

[0007] Further, a soundproof can 60 is arranged on the air inlet pipe of the control element 10 for the on-off of the air flow, and a soundproof structure 40 can also be arranged at the input end of the soundproof can 60.

[0008] Further, the brush hair group 402 is composed of a number of capillary filaments, and the material of the brush hair group 402 is PBT, which has good wear resistance and high temperature resistance and is not easy to deform.

[0009] Further, the diameters of the brush hair groups 402 are the same or different. When the diameters of the brush hair groups 402 are different, the diameter of the brush hair group 402 close to the control element 10 for the on-off of the air flow is smaller than the diameter of the brush hair group 402 far from the control element 10 for the on-off of the air flow, which is convenient for the installation of the brush rod 401 on the air inlet pipe 20 or the air outlet pipe 30, but the adaptability is relatively low. When the brush hair groups 402 have the same diameter, the adaptability is relatively high, but the installation is not convenient.

[0010] Further, when the brush hair groups 402 are arranged with the same diameter, the diameter of the brush hair group 402 is 2-4 times the diameter of the air inlet pipe 20 or the air outlet pipe 30 where it is installed. Since the diameters of the existing air inlet pipe 20 or the air outlet pipe 30 are generally 3-4mm, the diameter of the selected brush hair group 402 is 6.5mm-7.5mm.

[0011] Further, there is a spacing between two adjacent brush hair groups 402, and the spacing is 1mm-3mm.

[0012] Further, the length of the brush rod 401 is 2-4 times the diameter of the brush hair group 402.

[0013] Further, the length of the brush rod 401 is 19mm-21mm. If the total length is less than 19mm, the absorption of the air flow noise will be reduced. If the total length is greater than 21mm, the bending of the air inlet pipe 20 and the air outlet pipe 30 will be restricted, so that when the brush is installed in the middle of the air inlet pipe 20 or the air outlet pipe 30, the jacking height of the air bag does not exceed 36mm, meeting the jacking height requirement of the air bag.

[0014] Further, a brush handle 50 extends outward from the brush rod 401, facilitating the installation and disassembly of the intake pipe 20 or the exhaust pipe 30.

[0015] Further, the brush handle 50 and the brush rod 401 are integrally formed, and both are made of stainless steel.

[0016] Further, the total length of the brush handle 50 and the brush rod 401 is 26 mm - 30 mm. If the total length is greater than 30 mm, the bending of the intake pipe 20 and the exhaust pipe 30 will be restricted. If the total length is less than 26 mm, the absorption of airflow noise will be reduced.

[0017] Advantages of the present invention: The present invention provides a noise reduction structure for the airflow of a seat massage system, including a control element 10 for controlling the on / off of the airflow. The control element 10 for controlling the on / off of the airflow is respectively connected to an intake pipe 20 and an exhaust pipe 30. A noise reduction structure 40 for reducing the airflow noise is provided inside the intake pipe 20 and / or the exhaust pipe 30. The noise reduction structure 40 includes a brush rod 401, and a plurality of brush hair groups 402 are provided on the brush rod 401 and are evenly spaced. Both ends of the brush hair group 402 are in contact with the inner wall of the intake pipe 20 or the exhaust pipe 30. When the airflow passes through, the airflow is evenly dispersed, thereby reducing the airflow noise and ensuring the required air flow rate. By providing the noise reduction structure, not only is the installation simple, the installation speed is fast, the material cost is low, and the yield rate is high, but also the airflow noise is greatly reduced. Description of the Drawings

[0018] Figure 1 It is a front view of the noise reduction structure of the present invention.

[0019] Figure 2 It is a partial structural schematic diagram of the present invention.

[0020] Figure 3 It is a test diagram of the noise reduction structure of the present invention.

[0021] Main Component Symbol Explanation:

[0022] Control element 10 for controlling the on / off of the airflow, intake pipe 20, exhaust pipe 30, noise reduction structure 40, brush rod 401, brush hair group 402, brush handle 50, noise reduction tank 60.

[0023] The following specific embodiments will further illustrate the present invention in conjunction with the above drawings. Specific Embodiments

[0024] The following embodiments are described to assist in understanding the present application. The embodiments are not and should not be construed in any way as limiting the scope of protection of the present application.

[0025] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or integrated together (including being integrated within a single system or component).

[0026] At the same time, the connections between components or systems are not intended to be limited to direct connections. Instead, the data between these components may be modified, reformatted, or otherwise changed by intermediate components. Additionally, additional or fewer connections may be used. It should also be noted that the terms "coupled", "connected", or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections. Embodiment 1:

[0027] As Figure 1 shown, it is a front view of the sound insulation structure of the present invention; as Figure 2 shown, it is a partial structure schematic diagram of the present invention; as Figure 3 shown, it is a test diagram of the sound insulation structure of the present invention.

[0028] A sound insulation structure for the airflow of a seat massage system, comprising a control element 10 for the on-off of the air flow. The control element 10 for the on-off of the air flow is respectively connected with an air inlet pipe 20 and an air outlet pipe 30. A sound insulation structure 40 for reducing the airflow noise is provided in the air inlet pipe 20 and / or the air outlet pipe 30. The sound insulation structure 40 includes a brush rod 401, and a plurality of brush hair groups 402 are provided on the brush rod 401 and are arranged at uniform intervals. Both ends of the brush hair group 402 are in contact with the inner wall of the air inlet pipe 20 or the air outlet pipe 30. When the air flow passes through, the air flow is evenly dispersed, thereby reducing the airflow noise and ensuring the required air flow rate at the same time. A sound insulation tank 60 is provided in the air inlet pipe of the control element 10 for the on-off of the air flow, and a sound insulation structure 40 may also be provided at the input end of the sound insulation tank 60.

[0029] The bristles group 402 is composed of a number of capillary filaments, and the material of the bristles group 402 is PBT, which has good abrasion resistance and high temperature resistance, and is not easily deformed. The diameters of the bristles group 402 are the same or different. When the diameters of the bristles group 402 are different, the diameter of the bristles group 402 closer to the air flow on-off control element 10 is smaller than that of the bristles group 402 farther away from the air flow on-off control element 10, which is convenient for the installation of the brush rod 401 on the intake pipe 20 or the outlet pipe 30, but the adaptability is relatively low. When the bristles group 402 has the same diameter, the adaptability is relatively high, but the installation is not convenient. When the bristles group 402 has the same diameter, the diameter of the bristles group 402 is 2-4 times the diameter of the intake pipe 20 or the outlet pipe 30 on which it is installed. Since the diameters of the existing intake pipe 20 or the outlet pipe 30 are generally 3-4mm, the selected diameter of the bristles group 402 is 6.5mm-7.5mm. There is a spacing between adjacent bristles groups 402, and the spacing is 1mm-3mm. The length of the brush rod 401 is 2-4 times the diameter of the bristles group 402, and the length of the brush rod 401 is 19mm-21mm. If the total length is less than 19mm, the absorption of air flow noise will be reduced. If the total length is greater than 21mm, the bending of the intake pipe 20 and the outlet pipe 30 will be restricted, so that when the brush is installed in the middle of the intake pipe 20 or the outlet pipe 30, the lifting height of the air bag does not exceed 36mm, meeting the lifting height requirements of the air bag.

[0030] The brush rod 401 extends outward to be provided with a brush handle 50, which is convenient for the installation and disassembly of the intake pipe 20 or the outlet pipe 30. The brush handle 50 and the brush rod 401 are integrally formed, and the materials of both are stainless steel. The total length of the brush handle 50 and the brush rod 401 is 26mm-30mm. If the total length is greater than 30mm, the bending of the intake pipe 20 and the outlet pipe 30 will be restricted. If the total length is less than 26mm, the absorption of air flow noise will be reduced.

[0031] Three sizes of bristles groups are used in this verification, and the specific sizes are as follows:

[0032] 1. Bristles group with a diameter of 5mm: 28×20×5mm;

[0033] 2. Bristles group with a diameter of 6mm: 28×20×6mm;

[0034] 3. Bristles group with a diameter of 7mm: 28×20×7mm;

[0035] The conditions of this verification are all in the same laboratory, and the time is 15S. The test results are as follows:

[0036] Table 1 shows the noise values of the finished product lumbar support inflation and deflation tests of the control group, which is normally assembled (using a silencing stone structure of PE sintered body or metal sintered body in the air pipe):

[0037]

[0038] Table 1

[0039] As shown in Table 1, the noise values of the finished lumbar support with normal assembly during the inflation and deflation test are in the range of 39 - 43 dB.

[0040] Table 2 shows the following noise test data for the product with a 5 mm diameter brush group assembled:

[0041]

[0042] Table 2

[0043] As shown in Table 2, when assembling the product with a 5 mm diameter brush group, the noise values are in the range of 35.3 - 40.6 dB (including the 6 dB compensation value for the lumbar support airbag, and the pick-up reading needs to be +6).

[0044] Table 3 shows the following noise test data for the product with a 6 mm diameter brush group assembled:

[0045]

[0046] Table 3

[0047] As shown in Table 3, when assembling the product with a 6 mm diameter brush group, the noise values are in the range of 33.9 - 40.0 dB (including the 6 dB compensation value for the lumbar support airbag, and the pick-up reading needs to be +6).

[0048] Table 4 shows the following noise test data for the product with a 7 mm diameter brush group assembled:

[0049]

[0050] Table 4

[0051] As shown in Table 4, when assembling the product with a 7 mm diameter brush group, the noise values are in the range of 33.2 - 40.2 dB (including the 6 dB compensation value for the lumbar support airbag, and the pick-up reading needs to be +6).

[0052] As shown in Table 5, the basic performance parameters of the pneumatic lumbar support: under the condition of 13.5 V and a 250 N load, the airbag inflation time is 15 ± 0.5 s, and the single airbag lifting height > 35 mm; the following are the lifting heights outside the line after installing different size brush groups in the middle of the air pipe (upper and lower airbags):

[0053]

[0054] Table 5

[0055] In summary, after this verification, compared with the silencing stone structure using PE sintered body or metal sintered body in the trachea of the lumbar support airbag, adding a brush group in the trachea of the lumbar support airbag can reduce the airflow noise during product inflation to a certain extent;

[0056] When the brush group is installed in the middle of the trachea, the lifting height of the airbag exceeds 36 mm, meeting the product lifting height requirements. At the same time, the 7-mm diameter brush head disperses the airflow more evenly.

[0057] The beneficial effects of the present invention: The present invention provides a silencing structure for the airflow of a seat massage system, including a control element 10 for controlling the on-off of the air flow. The control element 10 for controlling the on-off of the air flow is respectively connected with an air inlet pipe 20 and an air outlet pipe 30. A silencing structure 40 for reducing the airflow noise is provided in the air inlet pipe 20 and / or the air outlet pipe 30. The silencing structure 40 includes a brush rod 401, and a plurality of brush groups 402 are provided on the brush rod 401 and are evenly spaced. The two ends of the brush group 402 are in contact with the inner wall of the air inlet pipe 20 or the air outlet pipe 30. When the airflow passes through, the airflow is evenly dispersed, thereby reducing the airflow noise and ensuring the required air flow rate. By providing the silencing structure, not only is the installation simple, the installation speed is fast, the material cost is low, and the yield rate is high, but also the airflow noise is greatly reduced.

[0058] The above embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A sound insulation structure for the air flow of a seat massage system, comprising a control element (10) for controlling the on-off of the air flow, wherein the control element (10) for controlling the on-off of the air flow is respectively connected with an air inlet pipe (20) and an air outlet pipe (30), and is characterized in that: A sound-absorbing structure (40) for reducing air flow noise is provided inside the intake pipe (20) and / or the outlet pipe (30). The sound-absorbing structure (40) includes a brush rod (401), and a plurality of brush hair groups (402) are provided on the brush rod (401) and are evenly spaced. The two ends of the brush hair group (402) are in contact with the inner wall of the intake pipe (20) or the outlet pipe (30). When air flow passes through, the air flow is evenly dispersed, thereby reducing air flow noise and ensuring the required air flow rate.

2. The sound insulation structure of the air flow of the seat massage system according to claim 1, wherein: The brush hair group (402) is composed of a plurality of capillary filaments, and the material of the brush hair group (402) is PBT, which has good wear resistance and high temperature resistance and is not easily deformed.

3. The silencing structure of the air flow of the seat massage system according to claim 2, characterized in that: The diameters of the brush hair groups (402) are the same or different. When the diameters of the brush hair groups (402) are different, the diameter of the brush hair group (402) closer to the control element (10) for air flow on-off is smaller than the diameter of the brush hair group (402) farther from the control element (10) for air flow on-off, which is convenient for the installation of the brush rod (401) on the intake pipe (20) or the outlet pipe (30), but the adaptability is relatively low. When the brush hair groups (402) have the same diameter, the adaptability is relatively high, but the installation is not convenient.

4. The silencing structure of the air flow of the seat massage system according to claim 3, characterized in that: When the brush hair groups (402) have the same diameter, the diameter of the brush hair group (402) is 2-4 times the diameter of the intake pipe (20) or the outlet pipe (30) on which it is installed.

5. The silencing structure of the air flow of the seat massage system according to claim 4, characterized in that: A spacing is left between two adjacent brush hair groups (402), and the spacing is 1 mm - 3 mm.

6. The silencing structure of the air flow of the seat massage system according to claim 5, characterized in that: The length of the brush rod (401) is 2-4 times the diameter of the brush hair group (402).

7. The silencing structure of the air flow of the seat massage system according to claim 6, characterized in that: The length of the brush rod (401) is 19 mm - 21 mm. If the total length is less than 19 mm, the absorption of air flow noise will be reduced. If the total length is greater than 21 mm, the bending of the intake pipe (20) and the outlet pipe (30) will be restricted, so that when the brush is installed in the middle of the intake pipe (20) or the outlet pipe (30), the lifting height of the air bag does not exceed 36 mm, which does not meet the product lifting height requirement.

8. The sound insulation structure of the air flow of the seat massage system according to claim 7, characterized in that: The brush rod (401) extends outward to be provided with a brush handle (50), which is convenient for the installation and disassembly of the intake pipe (20) or the outlet pipe (30).

9. The silencing structure of the air flow of the seat massage system according to claim 8, wherein: The brush handle (50) and the brush rod (401) are integrally formed, and the material of both is stainless steel.

10. The silencing structure of the air flow of the seat massage system according to claim 9, characterized in that: The total length of the brush handle (50) and the brush rod (401) is 26 mm - 30 mm. If the total length is greater than 30 mm, the bending of the intake pipe (20) and the outlet pipe (30) will be restricted. If the total length is less than 26 mm, the absorption of air flow noise will be reduced.

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