Efficient noise reduction ventilation valve

Abstract

An efficient noise reduction ventilation valve comprises a mounting shell, a valve plate and a sound insulation cover. The shell comprises an installation opening, a ventilation opening, a frame body and a valve plate fixing piece. And a noise reduction layer is arranged on the frame body. The noise reduction layer is located on the surface, making contact with the valve block, of the frame body, and short fibers are vertically fixed to the frame body coated with an adhesive. And each ventilation opening is covered with the valve plate. The sound insulation cover is a cover body arranged on one side of the installation shell and is fixed through a buckle or a fastener. Compared with the prior art, due to the fact that the noise reduction layer is arranged on the frame body, the valve plate can impact on the soft noise reduction layer when closed, impact force and flapping sound are reduced, the valve plate can be made of light and thin sealing materials, one-way ventilation is guaranteed, meanwhile, the opening sensitivity of the valve plate is improved, and the sealing performance of the valve plate is improved. The efficient ventilation function is achieved, and meanwhile the excellent noise reduction capacity is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical ventilation, in particular to a high-efficiency noise-reducing ventilation valve. Background Art

[0002] In motor vehicles, such as sedans, SUVs, or new energy vehicles, when the doors are closed, the air will be compressed inside the vehicle, forming high pressure, which will not only make people sitting in the car uncomfortable, but also sometimes compress vehicle equipment, such as glass. Therefore, ventilation devices are provided on vehicle doors or vehicle frames to balance the air pressure inside and outside the vehicle by ventilating when the doors are closed. In addition, the ventilation device is also used to remove the exhaust gas inside the vehicle, so the ventilation device has a basic requirement that the airflow can only flow out of the vehicle through the ventilation device, and cannot flow from outside to inside.

[0003] As disclosed in the Chinese utility model CN202223602972.7 authorized by the applicant, a double-layer ventilation device with filtering function includes a shell, a ventilation structure, and a filtering device. The shell includes a first shell and a second shell. The second shell is also provided with a water trough and a water guide trough. The valve plate structure includes a first valve plate and a second valve plate. The second valve plate covers the first valve plate. The filtering device includes a fixed pressing plate and a filter net. By setting the filter net, dust, mosquitoes, etc. can be effectively prevented from entering the vehicle through the vent. And by setting the valve plate structure, the sound insulation ability of the non-woven fabric is utilized, and the sealing and elastic contraction functions of the silica gel are also combined, so as to ensure that the vent can isolate noise to the greatest extent while maintaining the function of one-way ventilation. Finally, by setting the water trough and the water guide trough, the water vapor generated on both sides of the installation port can be effectively collected and guided to prevent water from entering the vehicle.

[0004] Although the double-layer valve plate can reduce the flapping sound when the valve plate falls to a certain extent and achieve a noise reduction effect, the use of a double-layer valve plate increases the overall weight of the valve plate. When the air flows, a greater force is required to push the valve plate open, resulting in a decrease in the sensitivity of the ventilation device. In addition, replacing the valve plate also requires more operating steps and higher replacement costs, so it needs to be further improved. Utility Model Content

[0005] In view of this, the utility model provides a high-efficiency noise reduction ventilation valve to solve the above technical problems.

[0006] A high-efficiency noise-reducing ventilation valve comprises a mounting shell, a plurality of valve sheets arranged on the mounting shell, and a soundproof cover arranged on the mounting shell. The shell comprises a mounting port, a plurality of vents arranged on the mounting port, a plurality of frames forming the vents, and a plurality of valve sheet fixing members arranged on the frames. A noise reduction layer is arranged on the frame. The noise reduction layer is located on the surface of the frame in contact with the valve sheet, and is formed by vertically fixing short fibers to the frame coated with an adhesive. The valve sheet covers each of the vents. The soundproof cover is a cover arranged on one side of the mounting shell and fixed by snaps or fasteners.

[0007] Furthermore, the shell is made of hard plastic by injection molding.

[0008] Furthermore, the shell is also provided with a sub-frame for installation and a sealing frame for ensuring the sealing of the installation.

[0009] Furthermore, the frame and the mounting opening are integrally formed.

[0010] Furthermore, the noise reduction layer is made of nylon fiber material.

[0011] Furthermore, the valve plate is made of silicone material.

[0012] Furthermore, the sound insulation cover is located on a side close to the floor after installation.

[0013] Furthermore, a sealing strip may be provided between the sound insulation cover and the mounting shell.

[0014] Furthermore, the high-efficiency noise reduction ventilation valve also includes a water collection tank, which is arranged on the same side of the mounting shell as the sound insulation cover, and when the mounting shell is installed on the car, the water collection tank is located below the sound insulation cover.

[0015] Compared with the prior art, the high-efficiency noise reduction ventilation valve provided by the utility model arranges the noise reduction layer in the frame, so that when the valve plate is closed, it will hit the soft noise reduction layer, reducing the impact force and the flapping sound, so that the valve plate can use a lighter and thinner sealing material, ensuring one-way ventilation while improving the sensitivity of the valve plate opening, achieving more efficient ventilation function while having excellent noise reduction ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of an implementation scheme of a high-efficiency noise-reducing ventilation valve provided by the utility model.

[0017] Figure 2 for Figure 1Schematic diagram of the exploded structure of the high-efficiency noise reduction ventilation valve at another angle.

[0018] Figure 3 for Figure 1 A schematic structural diagram of another embodiment of a high-efficiency noise reduction ventilation valve.

[0019] Figure 4 for Figure 3 A schematic structural diagram of another angle of an implementation method of a high-efficiency noise reduction ventilation valve.

[0020] Figure 5 for Figure 1 A schematic structural diagram of another embodiment of a high-efficiency noise reduction ventilation valve.

[0021] Figure 6 for Figure 1 A schematic structural diagram of another embodiment of a high-efficiency noise reduction ventilation valve.

[0022] Figure 7 for Figure 6 A schematic structural diagram of another angle of an implementation method of a high-efficiency noise reduction ventilation valve.

[0023] Figure 8 for Figure 1 A schematic structural diagram of another embodiment of a high-efficiency noise reduction ventilation valve.

[0024] Fig. 9 for Figure 8 A schematic structural diagram of another angle of an implementation method of a high-efficiency noise reduction ventilation valve.

[0025] Fig.10 for Figure 1 A schematic structural diagram of another embodiment of a high-efficiency noise reduction ventilation valve.

[0026] Fig.11 for Fig.10 A schematic structural diagram of another angle of an implementation method of a high-efficiency noise reduction ventilation valve.

[0027] Fig.12 for Figure 1 A schematic structural diagram of another embodiment of a high-efficiency noise reduction ventilation valve.

[0028] Fig.13 for Fig.12 A schematic structural diagram of another angle of an implementation method of a high-efficiency noise reduction ventilation valve. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0030] like Figures 1 to 13 As shown, it is a schematic diagram of the structure of the high-efficiency noise reduction ventilation valve provided by the utility model. The high-efficiency noise reduction ventilation valve includes a mounting shell 10, a plurality of valve plates 20 arranged on the mounting shell 10, and a soundproof cover 30 arranged on the mounting shell 10. It can be imagined that the high-efficiency noise reduction ventilation valve also includes some other functional modules such as mounting structure, sealing structure, etc., which are well known to those skilled in the art and will not be described one by one here.

[0031] The housing 10 is made of hard plastic injection molding, and includes a mounting opening 11 , a plurality of vents 12 disposed on the mounting opening 11 , a plurality of frames 13 forming the vents 12 , and a plurality of valve plate fixing members 14 disposed on the frames 13 .

[0032] The shell 10 is also provided with a sub-frame for installation and a sealing frame to ensure the sealing of the installation. The installation port 11, the vent 12 and the valve plate fixing member 14 are all mentioned in the utility model already applied for by the applicant, such as an air circulation device suitable for automobiles with publication number CN202223377885.6, so they will not be described one by one here.

[0033] The frame 13 and the mounting opening 11 are integrally formed to form the vent 12. A noise reduction layer 131 is provided on the frame 13, and the noise reduction layer 131 is located on the surface of the frame 13 in contact with the valve plate 20. By vertically fixing short fibers to the frame 13 coated with an adhesive, the valve plate 20 hits the noise reduction layer 131 when opening and closing, thereby reducing the noise generated by the impact. Materials such as nylon fibers can be used, and a noise reduction layer with strong noise reduction ability is obtained by taking advantage of the good elasticity, high strength, wear resistance and durability of nylon fibers.

[0034] The valve plate 20 is made of a flexible material such as silicone and covers each of the vents 12. By opening an opening that matches the cross-sectional size of the valve plate fixing member 14, the valve plate 20 is sleeved on the valve plate fixing member 14 so that it can be flipped over at the vent 12 and cannot be detached, so that when there is airflow, the valve plate 20 is driven to flip up, and when there is no airflow, the valve plate 20 covers the vent 12 under the action of gravity, thereby realizing one-way passage of airflow.

[0035] The soundproof cover 30 is a cover body arranged on one side of the mounting shell 10, and is fixed by means of buckles or fasteners to block the airflow and prevent the high-speed airflow from passing through and generating noise. The soundproof cover 30 is arranged at a part of the mounting shell 10, specifically, it is located on the side close to the floor after installation, so that the soundproof cover 30 will not hinder the air circulation while blocking the high-speed airflow from passing directly through the vent 12. Similarly, the position and shape of the soundproof cover 30 can be designed according to the actual installation requirements of the mounting shell 10. A sealing strip can also be arranged between the soundproof cover 30 and the mounting shell 10 to ensure the sealing of the soundproof cover.

[0036] like Figure 4 , Fig.11 , Fig.13 As shown, the high-efficiency noise reduction ventilation valve also includes a water collection tank 40, which is arranged on the same side of the mounting shell 10 as the sound insulation cover 30, and when the mounting shell 10 is installed on the car, the water collection tank 40 is located below the sound insulation cover 30 to collect water droplets generated by the collision of cold air and hot air when there is a temperature difference between the inside and outside of the car. At the same time, the water collection tank can also be collected in the water collection tank during the process of water vapor entering the car from the ventilation device due to the negative pressure in the car compartment on rainy days or when washing the car. Of course, it is conceivable that the water stored in the water collection tank can be guided out of the car body by other diversion structures, thereby preventing water from falling into the car compartment.

[0037] Compared with the prior art, the high-efficiency noise reduction ventilation valve provided by the utility model sets the noise reduction layer 131 on the frame 13, so that when the valve plate 20 is closed, it will hit the soft noise reduction layer 131, thereby reducing the impact force and the flapping sound, so that the valve plate 20 can use a lighter and thinner sealing material, ensuring one-way ventilation while improving the sensitivity of the valve plate 20 opening, achieving more efficient ventilation function while having excellent noise reduction ability.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A high-efficiency noise-reducing ventilation valve, characterized in that: The high-efficiency noise reduction ventilation valve includes a mounting shell, a plurality of valve plates arranged on the mounting shell, and a sound insulation cover arranged on the mounting shell. The shell includes a mounting port, a plurality of vents arranged on the mounting port, a plurality of frames forming the vents, and a plurality of valve plate fixing members arranged on the frame. A noise reduction layer is arranged on the frame, and the noise reduction layer is located on the surface of the frame in contact with the valve plates. The valve plates are covered on each of the vents by vertically fixing short fibers to the frame coated with an adhesive. The sound insulation cover is a cover arranged on one side of the mounting shell and fixed by snaps or fasteners.

2. The high-efficiency noise reduction ventilation valve according to claim 1, characterized in that: The shell is made of hard plastic by injection molding.

3. The high-efficiency noise reduction ventilation valve according to claim 1, characterized in that: The shell is also provided with a sub-frame for installation and a sealing frame for ensuring the sealing performance of the installation.

4. The high-efficiency noise reduction ventilation valve according to claim 1, characterized in that: The frame body and the mounting opening are integrally formed.

5. The high-efficiency noise reduction ventilation valve according to claim 1, characterized in that: The noise reduction layer is made of cotton nylon fiber material.

6. The high-efficiency noise reduction ventilation valve according to claim 5, characterized in that: The valve plate is made of silicone material.

7. The high-efficiency noise reduction ventilation valve according to claim 1, characterized in that: The sound insulation cover is located at a side close to the floor after installation.

8. The high-efficiency noise reduction ventilation valve according to claim 1, characterized in that: A sealing strip may also be provided between the sound insulation cover and the mounting shell.

9. The high-efficiency noise reduction ventilation valve according to claim 1, characterized in that: The high-efficiency noise reduction ventilation valve also includes a water collection tank, which is arranged on the same side of the mounting shell as the sound insulation cover, and when the mounting shell is installed on the car, the water collection tank is located below the sound insulation cover.

Images