Ventilation and noise elimination shutter device

Abstract

The ventilation and noise elimination shutter device comprises a shell, openings are formed in the two sides of the shell, a plurality of noise elimination blades which are arranged vertically and horizontally and directly face the openings are arranged in the shell, a plurality of through holes are formed in the noise elimination blades, a cavity is formed in each noise elimination blade, and a plurality of connecting ropes which are arranged longitudinally are arranged in each cavity. And a plurality of silencing cotton units are fixedly arranged on the connecting rope in a sleeving manner. The silencing device has the advantage that the silencing effect is improved.

Description

A ventilation and noise reduction louver device Technical Field

[0001] This application relates to the field of noise reduction equipment technology, and in particular to a ventilation and noise reduction louver device. Background Technology

[0002] Ventilation and noise-absorbing louvers are building components that combine air circulation and noise control. They consist of perforated metal blades arranged at a certain angle, with sound-absorbing material filling the interior. They provide basic functions such as ventilation, noise reduction, and rain protection, and are widely used in computer rooms, substations, industrial plants, subway ventilation openings, and other similar applications. Their noise reduction principle is achieved primarily through two aspects: first, the inclined blades form a physical barrier to block direct noise transmission; second, the perforated metal blades, combined with the internal sound-absorbing material, absorb sound wave energy.

[0003] However, in existing ventilation and sound-absorbing louvers, the sound-absorbing material layer inside the perforated blades is directly attached to the inner wall. In order to ensure ventilation, the sound-absorbing material layer is also perforated. Therefore, some noise cannot be absorbed by the sound-absorbing material layer and is directly transmitted through the holes. The sound-absorbing effect needs to be further improved. Summary of the Invention

[0004] The main purpose of this application is to provide a ventilation and noise reduction louver device, which aims to solve the technical problem that the noise reduction effect of existing ventilation and noise reduction louvers needs to be further improved.

[0005] To achieve the above objectives, this application provides a ventilation and noise reduction louver device, including a housing with openings on both sides. Multiple noise reduction blades arranged longitudinally and transversely facing the openings are arranged inside the housing. Multiple through holes are provided on the noise reduction blades. A cavity is provided inside the noise reduction blades. Multiple longitudinally arranged connecting ropes are arranged inside the cavity. Multiple sound-absorbing cotton units are fixedly sleeved on the connecting ropes.

[0006] Optionally, the sound-absorbing cotton unit has a porous structure, and the sound-absorbing cotton unit is at least one of block shape, spherical shape, and ellipsoidal shape.

[0007] Optionally, one side wall of each silencer blade is movably connected to the inner side wall of the housing via a first rotating shaft, and the other side wall of the silencer blade is connected to an angle adjustment mechanism via a second rotating shaft. The angle adjustment mechanism is used to drive the silencer blades in the same longitudinal row to rotate synchronously.

[0008] Optionally, the tilt adjustment mechanism includes multiple first links fixedly sleeved on corresponding second rotating shafts, and multiple first links are simultaneously hinged to second links, one of which is connected to a stepper motor.

[0009] Optionally, a hexagonal nut is fixedly connected to one end of the second rotating shaft, and an internal hexagonal hole that mates with the corresponding hexagonal nut is provided on the side wall of the silencer blade.

[0010] Optionally, the housing is provided with a temperature sensor and a controller that are electrically connected to each other, and the stepper motor is electrically connected to the controller.

[0011] Optionally, the controller has a built-in clock module.

[0012] Optionally, a receiving cavity is provided on one side of the housing, and the tilt adjustment mechanism and controller are both located in the receiving cavity.

[0013] Optionally, the sound-absorbing blade includes two detachably connected arc-shaped blades, each with through holes, and side plates can be detachably connected to both ends of the two arc-shaped blades to form a cavity.

[0014] Optionally, a perforated silencing plate arranged in an inverted V shape and located above the silencing blades is provided at the top of the housing, and an inclined surface arranged in an inverted V shape is provided at the bottom of the housing.

[0015] The beneficial effects that this application can achieve are as follows:

[0016] This application includes a housing with openings on both sides. Multiple longitudinally and transversely arranged sound-absorbing blades are disposed inside the housing, facing the openings. Each sound-absorbing blade has multiple through holes and a cavity within it. Multiple longitudinally arranged connecting ropes are disposed within the cavity, and multiple sound-absorbing cotton units are fixedly sleeved on the connecting ropes. Based on this structure, when noise enters the interior through the housing openings, some noise is physically blocked by the sound-absorbing blades, while the remaining noise enters the cavity through the through holes of the sound-absorbing blades. Since the multiple sound-absorbing cotton units inside the cavity are suspended by the connecting ropes, the noise first contacts the sound-absorbing cotton units, thus fully absorbing the sound wave energy. Only a small portion of the noise remains, passing through the through holes on the other side of the sound-absorbing blades, and then undergoes further sound absorption under the action of another set of multiple vertical sound-absorbing blades and their internal sound-absorbing cotton units. This significantly improves the sound absorption effect without affecting ventilation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 is a schematic diagram of the structure of a ventilation and noise reduction louver device in an embodiment of this application;

[0019] Figure 2 is a schematic diagram of the exploded structure of a ventilation and noise reduction louver device in an embodiment of this application;

[0020] Figure 3 is a schematic diagram of the internal structure of the silencer blade in an embodiment of this application (front view);

[0021] Figure 4 is a schematic diagram of the internal structure of the silencer blade in an embodiment of this application (side view);

[0022] Figure 5 is a schematic diagram of the connection structure of the tilt adjustment mechanism on the housing in an embodiment of this application;

[0023] Figure 6 is a schematic diagram of the connection structure between the tilt adjustment mechanism and the noise reduction blade in an embodiment of this application.

[0024] Figure label:

[0025] 110-Housing shell, 111-Receiving cavity, 112-Inclined surface, 120-Silence-absorbing blade, 121-Through hole, 122-Cavity, 123-Arc-shaped blade, 124-Side plate, 130-Connecting rope, 140-Silence-absorbing cotton unit, 150-First rotating shaft, 160-Second rotating shaft, 170-Tilting angle adjustment mechanism, 171-First connecting rod, 172-Second connecting rod, 173-Stepper motor, 180-Hexagonal nut, 190-Perforated silencer plate.

[0026] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0031] Example

[0032] Referring to Figures 1-6, this embodiment provides a ventilation and noise reduction louver device, including a housing 110 with openings on both sides. Multiple longitudinally and transversely arranged noise reduction blades 120 are disposed inside the housing 110, facing the openings. Multiple through holes 121 are provided on the noise reduction blades 120, and cavities 122 are provided inside the noise reduction blades 120. Multiple longitudinally arranged connecting ropes 130 are disposed inside the cavities 122, and multiple sound-absorbing cotton units 140 are fixedly sleeved on the connecting ropes 130.

[0033] In this embodiment, when noise enters the interior through the opening of the housing 110, some of the noise is physically blocked by the sound-absorbing blades 120, and the remaining noise enters the cavity 122 through the through hole 121 of the sound-absorbing blades 120. At this time, since multiple sound-absorbing cotton units 140 inside the cavity 122 are suspended in the air by the connecting rope 130, the noise first comes into contact with the sound-absorbing cotton units 140, thereby fully absorbing the sound wave energy. At this time, only a small part of the noise passes through the through hole 121 on the other side of the sound-absorbing blades 120, and then is silenced again under the action of another set of multiple vertical sound-absorbing blades 120 and their internal sound-absorbing cotton units 140, thereby greatly improving the sound-absorbing effect without affecting ventilation.

[0034] It should be noted that the sound-absorbing cotton unit 140 can be arranged directly opposite the through hole 121, and the length and width of the sound-absorbing cotton unit 140 are larger than the diameter of the through hole 121. When noise passes through the through hole 121, it will inevitably pass through the sound-absorbing cotton unit 140, thus maximizing the noise reduction effect.

[0035] As an optional implementation, the sound-absorbing cotton unit 140 has a porous structure, which can further improve the sound absorption effect. The sound-absorbing cotton unit 140 can be at least one of the following shapes: block (generally rectangular block), spherical, or ellipsoidal, all of which can meet the usage requirements.

[0036] As an optional implementation, one side wall of the muffler blade 120 is movably connected to the inner side wall of the housing 110 via a first rotating shaft 150, and the other side wall of the muffler blade 120 is connected to an angle adjustment mechanism 170 via a second rotating shaft 160. The angle adjustment mechanism 170 is used to drive the muffler blades 120 in the same longitudinal row to rotate synchronously.

[0037] In this embodiment, the tilt adjustment mechanism 170 is used to drive the silencer blades 120 in the same column to rotate synchronously, thereby adjusting the corresponding rotation angle of the silencer blades 120, thereby realizing the adjustment of the noise reduction and ventilation volume to suit more usage scenarios and needs.

[0038] As an optional implementation, the tilt adjustment mechanism 170 includes a plurality of first connecting rods 171 fixedly sleeved on corresponding second rotating shafts 160, and the plurality of first connecting rods 171 are simultaneously hinged to second connecting rods 172, and one of the second rotating shafts 160 is connected to a stepper motor 173.

[0039] In this embodiment, when adjustment is required, the stepper motor 173 rotates at the corresponding angle, driving the corresponding second rotating shaft 160 to rotate, thereby driving the first connecting rod 171 connected to the second rotating shaft 160 to rotate, which in turn drives the second connecting rod 172 to swing, thereby driving the remaining first connecting rods 171 and the second rotating shaft 160 to rotate synchronously, thereby realizing the automatic adjustment of the tilt angle of multiple silencer blades 120 in the same column.

[0040] It should be noted that, taking the setting of two sets of longitudinal silencer blades 120 as an example, the tilt angle adjustment mechanism 170 is set with two corresponding blades.

[0041] As an optional implementation, a hexagonal nut 180 is fixedly connected to one end of the second rotating shaft 160, and an internal hexagonal hole that mates with the corresponding hexagonal nut 180 is opened on the side wall of the muffler blade 120.

[0042] In this embodiment, the second rotating shaft 160 is engaged with the internal hexagonal hole on the side wall of the muffler blade 120 through the hexagonal nut 180. When the second rotating shaft 160 rotates, it can drive the muffler blade 120 to rotate synchronously, which is convenient for assembly and disassembly.

[0043] As an optional implementation, a temperature sensor (not shown) and a controller (not shown) electrically connected to each other are provided on the housing 110, and the stepper motor 173 is electrically connected to the controller.

[0044] In this embodiment, the temperature sensor can detect the ambient temperature in real time and dynamically adjust the corresponding ventilation volume according to the real-time temperature. At this time, the controller can control the stepper motor 173 to rotate the corresponding angle according to the temperature data, thereby adjusting the ventilation volume by adjusting the tilt angle of the silencer blades 120, which can realize the dynamic adjustment of the intelligent temperature control mode.

[0045] It should be noted that the controller here can be an existing STM32 series microcontroller (such as STM32F030K6T6, STM32F103RBT6, STM32F103VCT6, etc.), and the temperature sensor can be an existing high-precision digital temperature sensor that supports wide temperature range detection and has moisture-proof and dust-proof characteristics.

[0046] As an optional implementation, the controller has a built-in clock module, which can form a time-period mode that automatically adjusts the ventilation volume and noise reduction according to preset day and night periods to meet more usage needs.

[0047] For example, noise limits differ between daytime (6:00 to 22:00) and nighttime (22:00 to 6:00 the next day), with daytime noise levels typically 10 dB(A) higher than nighttime levels. Simultaneously, the temperature difference between day and night leads to different ventilation and heat dissipation requirements. This device supports three control modes: time-based mode (automatically adjusting according to preset day / night time periods), temperature control mode (dynamically adjusting based on real-time temperature), and hybrid mode (optimized adjustment combining time-based and temperature parameters). This allows for intelligent adjustment of airflow and noise reduction based on different time periods, temperatures, or airflow requirements, providing flexibility in use.

[0048] It should be noted that existing RTC real-time clock modules can be used (such as RX8130CE, RX8111CE, RX8900CE, etc.).

[0049] As an optional implementation, a receiving cavity 111 is provided on one side of the housing 110. The tilt adjustment mechanism 170 and the controller are both located in the receiving cavity 111. Placing the tilt adjustment mechanism 170, the controller, and other moving parts and electronic components in the independent receiving cavity 111 provides a certain degree of protection and improves service life.

[0050] As an optional implementation, the muffler blade 120 includes two detachably connected arc-shaped blades 123, each of which has a through hole 121. Side plates 124 can be detachably connected to both ends of the two arc-shaped blades 123 to form a cavity 122, thereby making the muffler blade 120 form an elliptical structure to meet the usage requirements. The detachable structure can be a screw or snap-fit ​​structure for easy assembly and disassembly.

[0051] As an optional implementation, a perforated silencing plate 190 with an inverted V-shape is provided at the top of the housing 110 above the silencing blade 120, and an inclined surface 112 with an inverted V-shape is provided at the bottom of the housing 110.

[0052] In this embodiment, when noise enters the housing 110, it may be refracted multiple times to the top of the housing 110. Therefore, the perforated sound-absorbing plate 190 can be used to further reduce the noise energy, thereby reducing the probability of the noise being refracted out of the housing 110 and further improving the sound-absorbing effect. After prolonged use, the sound-absorbing blades 120 can be repeatedly rotated by the tilt adjustment mechanism 170 to shake off the dust inside onto the inclined surface 112 and slide out of the housing 110 along the inclined surface 112 for easy and quick cleaning.

[0053] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A ventilating and sound attenuating louver device, characterized in that The device includes a housing with openings on both sides. Inside the housing, multiple longitudinally and transversely arranged sound-absorbing blades are arranged opposite the openings. Multiple through holes are provided on the sound-absorbing blades. A cavity is provided inside the sound-absorbing blades. Multiple longitudinally arranged connecting ropes are arranged inside the cavities. Multiple sound-absorbing cotton units are fixedly sleeved on the connecting ropes.

2. A ventilated and sound attenuated louver assembly as in claim 1, wherein, The sound-absorbing cotton unit has a porous structure, and the sound-absorbing cotton unit is at least one of the following: block shape, spherical shape, and ellipsoidal shape.

3. The ventilation and noise reduction louver device as described in claim 1, characterized in that, One side wall of each of the noise-absorbing blades is movably connected to the inner side wall of the housing via a first rotating shaft, and the other side wall of each noise-absorbing blade is connected to a tilt adjustment mechanism via a second rotating shaft. The tilt adjustment mechanism is used to drive the noise-absorbing blades in the same longitudinal row to rotate synchronously.

4. A ventilation and noise reduction louver device as described in claim 3, characterized in that, The tilt adjustment mechanism includes multiple first connecting rods fixedly sleeved on the corresponding second rotating shafts, and multiple first connecting rods are simultaneously hinged to second connecting rods, and one of the second rotating shafts is connected to a stepper motor.

5. A ventilation and noise reduction louver device as described in claim 3 or 4, characterized in that, One end of the second rotating shaft is fixedly connected to a hexagonal nut, and the side wall of the silencing blade is provided with an internal hexagonal hole that mates with the corresponding hexagonal nut.

6. A ventilation and noise reduction louver device as described in claim 4, characterized in that, The housing is equipped with a temperature sensor and a controller that are electrically connected to each other, and the stepper motor is electrically connected to the controller.

7. A ventilation and noise reduction louver device as described in claim 6, characterized in that, The controller has a built-in clock module.

8. A ventilated acoustic louver assembly as in claim 6, wherein, A receiving cavity is provided on one side of the housing, and the tilt adjustment mechanism and the controller are both located in the receiving cavity.

9. A vented acoustical louver assembly as in claim 1, wherein, The noise-absorbing blade includes two detachably connected arc-shaped blades, each of which has a through hole. Side plates can be detachably connected to both ends of the two arc-shaped blades to form the cavity.

10. A ventilation and noise reduction louver device as described in claim 1, characterized in that, The top of the housing is provided with a perforated silencing plate arranged in an inverted V shape above the silencing blades, and the bottom of the housing is provided with an inclined surface arranged in an inverted V shape.

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