Noise reduction part, air inlet module and air conditioner

Abstract

The invention provides a noise reduction part, an air inlet module and an air conditioner. The noise reduction part comprises a trumpet-shaped ring body, the flaring end of the ring body is an air inlet end, and the necking end of the ring body is an air outlet end. The ring body comprises a plurality of ring sections which are sequentially arranged in the circumferential direction of the ring body, and the ring sections protrude towards the inner side or the outer side of the ring body. In the noise reduction piece, the ring section of the horn-shaped ring body is arranged to protrude towards the inner side or the outer side of the ring body so as to be used for rebounding sound waves, the rebounded sound waves and shock waves entering the ring body can form superposition of mechanical waves, and wave crests and wave troughs are eliminated, so that the purposes of reducing noise and improving abnormal noise are achieved, the noise at the same rotating speed of a fan is reduced, and the service life of the fan is prolonged. And the rotating speed and the air volume of the fan under the same noise are improved.

Description

Technical Field

[0001] The present application relates to but is not limited to the technical field of ventilation noise reduction, and in particular to but is not limited to a noise reduction component, an air intake module and an air conditioner. Background Art

[0002] As people pay more attention to indoor air quality, various manufacturers have launched air conditioners with different fresh air volumes. However, while increasing the fresh air volume, it is always accompanied by an increase in noise. Solving the noise problem has become the most difficult issue.

[0003] Some air conditioners with fresh air function do not have a large fresh air volume, usually within 30m 3 / h to 60m 3 / h, which cannot meet the demand for fresh air; the air conditioner has loud working noise and poor user experience. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a noise reduction component, an air intake module and an air conditioner, wherein the noise reduction component can reduce the noise at the same fan speed, thereby increasing the fan speed and air volume at the same noise, thereby improving the performance of the air conditioner.

[0005] A noise reduction component provided in an embodiment of the present application includes:

[0006] The ring body is in the shape of a trumpet, the expanded end of which is the air inlet end, and the contracted end is the air outlet end;

[0007] The ring body includes a plurality of ring segments sequentially arranged along the circumference of the ring body, and the ring segments protrude toward the inner side or the outer side of the ring body.

[0008] In some exemplary embodiments, the protruding directions of adjacent ring segments are opposite, and a plurality of the ring segments are connected in a wave shape; or

[0009] The protruding directions of the plurality of ring segments are the same.

[0010] In some exemplary embodiments, an intersection line is formed between adjacent ring segments, and the intersection line is an arc line or a straight line.

[0011] In some exemplary embodiments, the intersection line includes a first end close to the air inlet end and a second end close to the air outlet end, and the first ends of a plurality of the intersection lines are deflected toward the same direction along the circumference of the ring body relative to the second ends.

[0012] In some exemplary embodiments, the ring segment is provided with a protrusion protruding toward the inner side of the ring body or toward the outer side of the ring body.

[0013] In some exemplary embodiments, the plurality of protrusions of the plurality of ring segments are arranged in a plurality of rows along the circumference of the ring body, with one protrusion in one row, or one row is provided with a plurality of protrusions arranged sequentially along the direction of the oblique height line of the ring body.

[0014] In some exemplary embodiments, the protrusions are circular protrusions, and along the direction from the air outlet end toward the air inlet end, the radius of the plurality of protrusions in the same row gradually increases.

[0015] In some exemplary embodiments, the ring segment is provided with sound absorbing holes penetrating along the wall thickness direction.

[0016] In some exemplary embodiments, the multiple sound absorbing holes of the multiple ring segments are arranged in multiple rows along the circumference of the ring body, with one sound absorbing hole in one row, or one row is provided with multiple sound absorbing holes arranged in sequence along the direction of the oblique height line of the ring body.

[0017] In some exemplary embodiments, the sound absorbing holes are circular holes, and along the direction from the air outlet end toward the air inlet end, the radius of the plurality of sound absorbing holes in the same row gradually increases.

[0018] In some exemplary embodiments, the noise reduction member further comprises:

[0019] The sound absorbing member is made of sound absorbing material and has ventilation holes. The sound absorbing member is arranged on the outer wall surface or the inner wall surface of the ring body, and the air outlet end of the ring body is connected with the ventilation holes.

[0020] In some exemplary embodiments, the end surface of the air inlet end is arranged obliquely or vertically relative to the central axis of the ring body.

[0021] In some exemplary embodiments, the ring body is a plastic member or a foam member.

[0022] The embodiment of the present application also provides an air intake module, including:

[0023] a fan device having an air inlet; and

[0024] The noise reduction component described in any of the above embodiments is arranged on the air inlet side of the fan device, and the air outlet end of the noise reduction component is connected to the air inlet of the fan device.

[0025] In some exemplary embodiments, the air intake module further includes:

[0026] The filter component is arranged on the air inlet side of the noise reduction component.

[0027] In some exemplary embodiments, the angle between the end surface of the filter component at the air outlet side and the end surface of the noise reduction component at the air inlet side is -30° to 30°.

[0028] In some exemplary embodiments, the filter component is tilted relative to the central axis of the fan device, the central axis of the noise reduction component coincides with the central axis of the fan device, and the end face of the air outlet side of the filter component is parallel to the end face of the air inlet end of the noise reduction component.

[0029] In some exemplary embodiments, the fan device includes an air inlet plate provided with the air inlet, and the ring body of the noise reduction component and the air inlet plate are an integrated structure, or the ring body of the noise reduction component and the air inlet plate are a split assembly structure.

[0030] An embodiment of the present application also provides an air conditioner, comprising the air intake module described in any of the above embodiments.

[0031] The noise reduction component provided in the embodiment of the present application has an overall trumpet-shaped ring body that can guide the airflow entering the air inlet; in addition, according to the mechanical wavelength measured on the plane of the air inlet when the fan device is at different speeds, the ring segments of the trumpet-shaped ring body are arranged to protrude toward the inside or outside of the ring body for the rebound of sound waves. The rebounded sound waves can form a superposition of mechanical waves with the shock waves entering the ring body, eliminating wave peaks and wave troughs, thereby achieving the purpose of reducing noise and improving abnormal sounds.

[0032] The noise reduction component of the embodiment of the present application can reduce the noise at the same fan speed, thereby increasing the fan speed and air volume at the same noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a structural schematic diagram of an air inlet module according to an embodiment of the present application;

[0034] Figure 2 for Figure 1 AA section structural diagram;

[0035] Figure 3 is a schematic diagram of the exploded structure of an air inlet module according to an embodiment of the present application;

[0036] Figure 4 It is a front view schematic diagram of the assembly structure of the noise reduction component and the fan device according to one embodiment of the present application;

[0037] Figure 5 is a schematic structural diagram of a noise reduction component according to an embodiment of the present application;

[0038] Figure 6 is a schematic diagram of the exploded structure of an air intake module according to another embodiment of the present application;

[0039] Figure 7 is a front view schematic diagram of an assembly structure of a noise reduction component and a fan device according to another embodiment of the present application;

[0040] Figure 8 is a structural schematic diagram of a noise reduction component according to another embodiment of the present application;

[0041] Fig. 9 is a schematic diagram of the exploded structure of an air inlet module according to yet another embodiment of the present application;

[0042] Fig.10 is a schematic cross-sectional structural diagram of an air inlet module according to yet another embodiment of the present application;

[0043] Fig.11 is a front view schematic diagram of an assembly structure of a noise reduction component and a fan device according to another embodiment of the present application;

[0044] Fig.12 Schematic diagram of the structure of a noise reduction component according to another embodiment of the present application.

[0045] Reference numerals:

[0046] 100-air inlet module;

[0047] 1-noise reduction member, 11-ring body, 111-ring segment, 112-intersection line, 113-air inlet end, 114-air outlet end, 115-inner side of the ring body, 116-outer side of the ring body, 117-end surface of the air inlet end, 12-protrusion, 13-sound absorbing hole, 14-sound absorbing member, 141-ventilation hole;

[0048] 2-fan device, 21-air inlet plate, 211-air inlet, 212-air inlet grille, 3-filter component, 31-filter bracket, 4-air inlet channel. DETAILED DESCRIPTION

[0049] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0050] like Figure 2-Figure 12 As shown, an embodiment of the present application provides a noise reduction component 1 that can be used at an air inlet 211 , such as: used at the air inlet 211 of a fan device 2 to achieve noise reduction of the air inlet 211 .

[0051] like Figure 5 , Figure 8 and Fig.12As shown, the noise reduction component 1 may include a trumpet-shaped (conical) ring body 11, the trumpet-shaped ring body 11 has a flared end and a narrowed end, the caliber of the flared end is larger than the caliber of the narrowed end, the flared end of the ring body 11 may be an air inlet end 113, and the narrowed end may be an air outlet end 114 (the air inlet end 113 of the ring body 11 is the air inlet end 113 of the noise reduction component 1, and the air outlet end 114 of the ring body 11 is the air outlet end 114 of the noise reduction component 1), and the air flow may enter the inner cavity of the ring body 11 from the flared end and flow out from the narrowed end.

[0052] In the noise reduction component 1 , the trumpet-shaped ring body 11 includes a plurality of ring segments 111 sequentially arranged along the circumference of the ring body 11 , and the ring segments 111 protrude toward the inner side of the ring body 11 or protrude toward the outer side of the ring body 11 .

[0053] Compared with an ordinary trumpet-shaped ring body, whose inner and outer wall surfaces are smooth conical surfaces as a whole, the trumpet-shaped ring body 11 of the embodiment of the present application can be divided into multiple ring segments 111 along the circumferential direction, and any ring segment 111 is configured to protrude toward the inner side 115 of the ring body (i.e., protrude toward the side where the central axis of the ring body 11 is located) or protrude toward the outer side 116 of the ring body (i.e., protrude toward the side where the central axis of the ring body 11 is located away from the side where the central axis of the ring body 11 is located), so that the inner and outer wall surfaces of the ring body 11 are no longer smooth conical surfaces as a whole, but uneven (concave and convex) arc surfaces.

[0054] The noise reduction component 1 of the embodiment of the present application has a trumpet-shaped ring body 11 as a whole, which can guide the airflow entering the air inlet 211; in addition, according to the mechanical wavelength measured on the plane of the air inlet 211 when the fan device 2 is at different speeds, the ring segment 111 of the trumpet-shaped ring body 11 is set to protrude toward the inside or outside of the ring body 11 for the rebound of sound waves. The rebounded sound waves can form a superposition of mechanical waves with the shock waves entering the ring body 11, eliminating wave peaks and wave troughs, thereby achieving the purpose of reducing noise and improving abnormal sounds.

[0055] The noise reduction component 1 of the embodiment of the present application can reduce the noise at the same fan speed, thereby increasing the fan speed and air volume at the same noise.

[0056] In some exemplary embodiments, Figure 2-Figure 12 As shown, among the multiple ring segments 111 of the trumpet-shaped ring body 11, the protruding directions of adjacent ring segments 111 are opposite, and the multiple ring segments 111 are connected in a wave shape; or, the protruding directions of the multiple ring segments 111 are the same.

[0057] Among the multiple ring segments 111 of the trumpet-shaped ring body 11, one of two adjacent ring segments 111 protrudes toward the inner side of the ring body 11, and the other protrudes toward the outer side of the ring body 11, so that the protruding directions of the two adjacent ring segments 111 are opposite, so that the multiple ring segments 111 of the trumpet-shaped ring body 11 can be connected in a wavy shape, so that the inner wall surface of the ring body 11 is an uneven wavy surface; or, the multiple ring segments 111 of the trumpet-shaped ring body 11 all protrude toward the inner side or the outer side of the ring body 11, so that the protruding directions of the multiple ring segments 111 are the same, so that the inner wall surface of the ring body 11 includes multiple concave curved surfaces or multiple convex curved surfaces.

[0058] The uneven wave surface or multiple concave surfaces or multiple convex surfaces of the trumpet-shaped ring body 11 can rebound the sound waves so as to offset the sharp peaks and troughs of the mechanical wavelength at the air inlet 211 through the superposition of waves, thereby improving abnormal sounds and reducing overall noise.

[0059] In some exemplary embodiments, Figure 4-Figure 5 , Figure 7-Figure 8 and Figure 11-Figure 12 As shown, in the plurality of ring segments 111 of the trumpet-shaped ring body 11 , an intersection line 112 is formed between adjacent ring segments 111 , and the intersection line 112 may extend from the air inlet end 113 to the air outlet end 114 , and the intersection line 112 may be a curved arc or a straight line.

[0060] In some exemplary embodiments, Figure 4-Figure 5 , Figure 7-Figure 8 and Figure 11-Figure 12 As shown, the intersection lines 112 between adjacent ring segments 111 include a first end close to the air inlet end 113 and a second end close to the air outlet end 114 , and the first ends of the plurality of intersection lines 112 are deflected toward the same direction along the circumference of the ring body 11 relative to the second ends.

[0061] like Figure 4 , Figure 7 and Fig.11 As shown, the multiple intersection lines 112 are all arcs, and the first ends of the multiple intersection lines 112 are deflected in the counterclockwise direction relative to the second ends along the circumference of the ring body 11. Among them, the fan of the fan device 2 can rotate in the clockwise direction, and the rotation direction of the fan can be opposite to the deflection direction of the intersection line 112. The noise reduction member 1 is arranged at the air inlet 211 of the fan device 2, which can better achieve noise reduction at the air inlet 211.

[0062] In some exemplary embodiments, Figure 6-Figure 8 As shown, any of the multiple ring segments 111 of the trumpet-shaped ring body 11 is provided with a protrusion 12 protruding toward the inner side of the ring body 11 or toward the outer side of the ring body 11 .

[0063] When the airflow flows through the inner cavity of the noise reduction component 1 and reaches the air inlet 211 of the fan device 2, the gas flow rate is fast. The noise reduction component 1 with a trumpet-shaped ring body 11 is arranged on the plane where the air inlet 211 is located, and arc surfaces of different heights are formed on the ring segment 111 of the ring body 11. A protrusion 12 protruding toward the inner side or the outer side of the ring body 11 is arranged on the arc surface. The arc surfaces of different heights and the protrusion 12 thereon can reflect sound waves to offset the sharp peaks and troughs of the mechanical wavelength at the air inlet 211, thereby improving abnormal sounds and reducing overall noise.

[0064] By providing arc surfaces and protrusions 12 of different heights on the noise reduction component 1 , the shape and surface characteristics of the noise reduction component 1 are changed to enhance the reflection effect of sound waves, thereby improving the noise reduction effect of the noise reduction component 1 .

[0065] In some exemplary embodiments, Figure 8 As shown, in the trumpet-shaped ring body 11 , the multiple protrusions 12 of the multiple ring segments 111 are arranged in multiple rows along the circumference of the ring body 11 , with one protrusion 12 in one row, or one row is provided with multiple protrusions 12 arranged in sequence along the direction of the oblique height line of the ring body 11 .

[0066] In the noise reduction component 1, a plurality of protrusions 12 are provided on the plurality of ring segments 111 of the trumpet-shaped ring body 11, and the plurality of protrusions 12 can be arranged in a plurality of rows along the circumference of the ring body 11, and the plurality of rows of protrusions 12 can be evenly distributed along the circumference of the ring body 11. Each row is provided with at least one protrusion 12, that is, any row can be provided with one protrusion 12, or any row can be provided with a plurality of protrusions 12, and the plurality of protrusions 12 can be arranged in sequence along the oblique height line of the trumpet-shaped ring body 11 (that is, formed by the intersection of the plane passing through the central axis of the trumpet-shaped ring body 11 and the ring body 11).

[0067] In some exemplary embodiments, Figure 8 As shown, the protrusions 12 on the ring segment 111 are circular protrusions, and along the direction from the air outlet end 114 to the air inlet end 113 , the radius of the multiple protrusions 12 in the same row gradually increases.

[0068] like Figure 8 As shown, the multiple circular protrusions 12 on the ring body 11 all protrude in the same direction, and the radius of the multiple circular protrusions 12 in the same row gradually increases along the direction from the air outlet end 114 to the air inlet end 113. The cooperation of the circular protrusions 12 with different radii can reflect sound waves of different wavelengths to eliminate sound waves of different wavelengths, thereby improving the overall noise reduction effect.

[0069] In some exemplary embodiments, Figure 9-12 As shown, among the multiple ring segments 111 of the trumpet-shaped ring body 11, any ring segment 111 is provided with a sound-absorbing hole 13 penetrating along the wall thickness direction.

[0070] The noise reduction component 1 of the embodiment of the present application has a trumpet-shaped ring body 11, and arc surfaces of different heights are formed on the ring segment 111 of the ring body 11. Sound-absorbing holes 13 that penetrate along the wall thickness direction are arranged on the arc surfaces. When air flows through the noise reduction component 1, sound waves with prominent wavelengths can be absorbed through the sound-absorbing holes 13, thereby achieving the purpose of reducing noise and improving abnormal sounds.

[0071] The sound absorption of the sound absorption hole 13 utilizes the microporous sound absorption principle, which realizes the energy conversion and absorption of the sound wave based on the damping and friction effects that occur when the sound wave passes through the tiny hole. When the sound wave propagates to a tiny hole, part of the sound energy will be transmitted through the hole and interact with the edge of the hole. This interaction will cause the sound wave to vibrate and rub near the hole, converting the sound energy into heat energy. In this way, the energy of the sound wave is effectively absorbed and attenuated.

[0072] In some exemplary embodiments, Fig.11 As shown, in the trumpet-shaped ring body 11 , the multiple sound-absorbing holes 13 of the multiple ring segments 111 are arranged in multiple rows along the circumference of the ring body 11 , with one sound-absorbing hole 13 in one row, or one row is provided with multiple sound-absorbing holes 13 arranged in sequence along the direction of the inclined height line of the ring body 11 .

[0073] In the noise reduction component 1, a plurality of ring segments 111 of the trumpet-shaped ring body 11 are provided with a plurality of sound-absorbing holes 13, and the plurality of sound-absorbing holes 13 can be arranged in a plurality of rows along the circumference of the ring body 11, and the plurality of rows of sound-absorbing holes 13 can be evenly distributed along the circumference of the ring body 11. Each row is provided with at least one sound-absorbing hole 13, that is, any row can be provided with one sound-absorbing hole 13, or any row can be provided with a plurality of sound-absorbing holes 13, and the plurality of sound-absorbing holes 13 can be arranged in sequence along the oblique height line of the trumpet-shaped ring body 11 (that is, formed by the intersection of the plane passing through the central axis of the trumpet-shaped ring body 11 and the ring body 11).

[0074] In some exemplary embodiments, Fig.11 As shown, the sound absorbing holes 13 are circular holes, and along the direction from the air outlet end 114 to the air inlet end 113 , the radius of the multiple sound absorbing holes 13 in the same row gradually increases.

[0075] like Fig.11 As shown, on the trumpet-shaped ring body 11 of the noise reduction member 1, the radius of the multiple circular sound-absorbing holes 13 in the same row gradually increases along the direction from the air outlet end 114 to the air inlet end 113. The cooperation of the circular sound-absorbing holes 13 with different radii can transform and absorb the energy of sound waves of different wavelengths, so as to enhance the overall noise reduction effect of the noise reduction member 1.

[0076] In some exemplary embodiments, Fig. 9 and Fig.10As shown, the noise reduction member 1 also includes a sound absorbing member 14 made of sound absorbing material. The sound absorbing member 14 has a ventilation hole 141. The sound absorbing member 14 is arranged on the outer wall surface or the inner wall surface of the ring body 11, and the air outlet end 114 of the ring body 11 is connected to the ventilation hole 141.

[0077] The noise reduction member 1 may include, in addition to the trumpet-shaped ring body 11, a sound absorbing member 14 made of a sound absorbing material (such as sponge, mineral wool, foam, etc.), which may be arranged on the inner wall surface of the trumpet-shaped ring body 11, or on the outer wall surface of the trumpet-shaped ring body 11, and the ventilation hole 141 of the sound absorbing member 14, the air outlet end 114 of the ring body 11 and the air inlet 211 of the fan device 2 may be connected. The sound absorbing member 14 made of the sound absorbing material has a sound absorbing function, and can be used to reduce or absorb sound wave energy and reduce noise propagation.

[0078] The sound absorbing member 14 can be used in conjunction with the trumpet-shaped ring body 11 having the sound absorbing hole 13 to achieve a better effect of reducing noise and improving abnormal sound. Of course, the sound absorbing member 14 can also be used in conjunction with the trumpet-shaped ring body 11 having the protrusion 12, or with the trumpet-shaped ring body 11 without the protrusion 12 and the sound absorbing hole 13.

[0079] In some exemplary embodiments, the sound absorbing member 14 may be adhered and fixed to the inner wall surface or the outer wall surface of the trumpet-shaped ring body 11. Of course, the sound absorbing member 14 may also be fixed to the inner wall surface or the outer wall surface of the ring body 11 in other ways.

[0080] In some exemplary embodiments, Figure 2 , Figure 5 , Figure 8 , Fig.10 and Fig.12 As shown, in the trumpet-shaped ring body 11, the end surface 117 of the air inlet end is relative to the central axis of the ring body 11 (such as Figure 5 , Figure 8 , Fig.10 The tilt setting (shown by the dashed line) Figure 2 and Fig.10 The direction indicated by the middle arrow is the flow direction of the airflow), that is, the end face 117 of the air inlet end and the central axis of the ring body 11 are neither parallel nor perpendicular; or, the end face 117 of the air inlet end is perpendicular to the central axis of the ring body 11.

[0081] The end surface 117 of the air inlet end of the trumpet-shaped ring body 11 may be arranged inclined or vertically relative to the central axis of the ring body 11 , so as to adapt to installation spaces of different shapes on the air inlet side of the fan device 2 .

[0082] In some exemplary embodiments, the ring body 11 is a plastic member or a foam member.

[0083] The ring body 11 can be an injection-molded plastic part or a foam part, and the foam has a certain sound-absorbing function. The foam ring body 11 or the plastic ring body 11 is easy to mold, and has low cost and light weight. Of course, the ring body 11 can also be made of other materials besides plastic or foam.

[0084] The present application also provides an air intake module 100, such as Figure 1-Figure 12 As shown, it comprises: a fan device 2 and a noise reduction member 1 of any of the above embodiments. The fan device 2 has an air inlet 211, the noise reduction member 1 is arranged on the air inlet side of the fan device 2, and the air outlet end 114 of the noise reduction member 1 is connected to the air inlet 211 of the fan device 2.

[0085] In the air inlet module 100, the noise reduction member 1 is arranged upstream of the fan device 2, and the central axis of the noise reduction member 1 (i.e., the central axis of the trumpet-shaped ring body 11) can coincide with the central axis of the fan device 2 (i.e., the rotation axis of the fan of the fan device 2) and the central axis of the air inlet 211. Before entering the air inlet 211 of the fan device 2, the airflow can flow through the noise reduction member 1, and the noise reduction member 1 can reduce the noise and abnormal sound of the fan device 2 when it is working, so as to reduce the working noise of the fan device 2 when the fan of the fan device 2 has the same rotation speed, and increase the rotation speed and air volume of the fan when the working noise is the same, thereby improving the working performance of the air inlet module 100.

[0086] In some exemplary embodiments, Figure 2-Figure 3 , Figure 6 , Figure 9-10 As shown, the air inlet module 100 further includes a filter component 3 , which is disposed on the air inlet side of the noise reduction component 1 , that is, the noise reduction component 1 is disposed in a cavity between the filter component 3 and the air inlet 211 of the fan device 2 .

[0087] The filter component 3 , the noise reduction component 1 and the fan device 2 are arranged in sequence. The filter component 3 can filter the airflow to prevent foreign matter from entering the fan device 2 and affecting the normal operation of the fan device 2 .

[0088] In some exemplary embodiments, the end surface of the filter component 3 at the air outlet side is adjacent to the end surface 117 at the air inlet end of the noise reduction element 1, and the angle between the end surface of the filter component 3 at the air outlet side and the end surface 117 at the air inlet end of the noise reduction element 1 is -30° to 30°. Figure 2 and Fig.10 As shown, the filter component 3 is tilted relative to the central axis of the fan device 2; in the noise reduction component 1, the end face 117 of the air inlet end of the trumpet-shaped ring body 11 is tilted relative to the central axis of the ring body 11, so that the end face on the air outlet side of the filter component 3 and the end face 117 on the air inlet end of the noise reduction component 1 are parallel, that is, the angle between the end face on the air outlet side of the filter component 3 and the end face 117 on the air inlet end of the noise reduction component 1 is 0°.

[0089] The filter component 3 is tilted relative to the central axis of the fan device 2. Compared with the vertical arrangement of the filter component 3 relative to the central axis of the fan device 2, the tilted arrangement is conducive to increasing the filtering area of ​​the filter component 3 to enhance the filtering efficiency. When the angle between the end face of the air outlet side of the filter component 3 and the end face 117 of the air inlet end of the noise reduction component 1 is maintained between -30° and 30°, the noise reduction component 1 can have a good noise reduction effect, wherein, when the angle is 0°, the noise reduction can be maximized.

[0090] In some exemplary embodiments, Figure 2-Figure 4 , Figure 6-Figure 7 , Figure 9-11 As shown, the fan device 2 includes an air inlet plate 21 provided with an air inlet 211, and the ring body 11 of the noise reduction component 1 and the air inlet plate 21 are an integrated structure; or, the ring body 11 of the noise reduction component 1 and the air inlet plate 21 are a split assembly structure.

[0091] The air inlet plate 21 of the fan device 2 is provided with an air inlet 211, and the trumpet-shaped ring body 11 of the noise reduction member 1 can be an integral structure with the air inlet plate 21, or the trumpet-shaped ring body 11 of the noise reduction member 1 and the air inlet plate 21 are two parts, and the two are fixed together by assembly. Among them, when the trumpet-shaped ring body 11 of the noise reduction member 1 is a plastic part, it can be an integral structure (such as: integrally formed) with the air inlet plate 21 or fixed together by assembly; when the trumpet-shaped ring body 11 of the noise reduction member 1 is a foam part, it can be assembled on the air inlet plate 21.

[0092] In some exemplary embodiments, Figure 3-Figure 4 , Figure 6-Figure 7 , Figure 9-11 As shown, the air inlet plate 21 may also be provided with an air inlet grille 212, and the air inlet grille 212 may cover the air inlet 211. The air inlet grille 212 may prevent foreign matter from entering the fan device 2, so as not to affect the normal operation of the fan device 2.

[0093] In some exemplary embodiments, the fan of the fan device 2 may be a centrifugal fan, and the air inlet plate 21 may be an air inlet end plate of a volute of the centrifugal fan.

[0094] In some exemplary embodiments, the filter component 3 may include a HEPA filter (High Efficiency Particulate Air Filter). Of course, the filter component 3 is not limited to including a HEPA filter, and may also be a filter in other forms.

[0095] In some exemplary embodiments, Figure 2 and Fig.10 As shown, the air inlet module 100 also includes an air inlet channel 4 , in which the filter component 3 , the noise reduction component 1 and the fan device 2 can be arranged, and the filter component 3 can be fixed to the air inlet channel 4 through a filter bracket 31 .

[0096] In some exemplary embodiments, the air intake module 100 may be a fresh air module and may be used in an air conditioner. The fresh air module may deliver fresh air from the outdoor environment into the room.

[0097] Taking into account that the air inlet channel 4 of the fresh air module has multiple corners, a small air inlet pipe diameter, large wind resistance, and a large total pressure ratio of the centrifugal fan, when the air flow passes through the HEPA net and reaches the air inlet grille 212 of the air inlet 211, the gas flow rate is fast. Therefore, a noise reduction component 1 with a trumpet-shaped ring body 11 is provided on the air inlet side of the fan device 2, and arc surfaces of different heights are provided on the ring segment 111 of the ring body 11, and convex points or sound-absorbing holes 13 are provided on the arc surfaces to offset the sharp peaks and troughs of the mechanical wavelength at the air inlet 211, thereby improving the abnormal sound during the operation of the air inlet module 100 and reducing the overall working noise.

[0098] An embodiment of the present application further provides an air conditioner, comprising an air intake module 100 according to any one of the above embodiments.

[0099] In some exemplary embodiments, the air intake module 100 may be a fresh air module and may be used in an indoor unit of an air conditioner, so that the air conditioner has a fresh air function.

[0100] Of course, the air intake module 100 can be not only a fresh air module, but also an indoor circulating air module in the indoor unit of the air conditioner, which can absorb air from the room and transport the processed air back to the room.

[0101] Of course, the air intake module 100 is not limited to being used in air conditioners, but can also be used in other products, such as humidifiers, etc.

[0102] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0103] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0104] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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 connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0105] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0107] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A noise reduction component, characterized in that: include: The ring body is in the shape of a trumpet, the expanded end of which is the air inlet end, and the contracted end is the air outlet end; The ring body includes a plurality of ring segments sequentially arranged along the circumference of the ring body, and the ring segments protrude toward the inner side or the outer side of the ring body.

2. The noise reduction component according to claim 1, characterized in that: The protruding directions of adjacent ring segments are opposite, and a plurality of the ring segments are connected in a wave shape; or The protruding directions of the plurality of ring segments are the same.

3. The noise reduction component according to claim 1, characterized in that: An intersection line is formed between adjacent ring segments, and the intersection line is an arc line or a straight line.

4. The noise reduction component according to claim 3, characterized in that: The intersection line includes a first end close to the air inlet end and a second end close to the air outlet end, and the first ends of the plurality of intersection lines are deflected toward the same direction along the circumference of the ring body relative to the second ends.

5. The noise reduction component according to any one of claims 1 to 4, characterized in that: The ring segment is provided with a protrusion protruding toward the inner side of the ring body or toward the outer side of the ring body.

6. The noise reduction member according to claim 5, characterized in that: The multiple protrusions of the multiple ring segments are arranged in multiple rows along the circumference of the ring body, with one row having one protrusion, or one row having multiple protrusions arranged in sequence along the direction of the oblique height line of the ring body.

7. The noise reduction member according to claim 6, characterized in that: The protrusions are circular protrusions, and along the direction from the air outlet end toward the air inlet end, the radius of the plurality of protrusions in the same row gradually increases.

8. The noise reduction component according to any one of claims 1 to 4, characterized in that: The ring segment is provided with a sound absorbing hole penetrating along the wall thickness direction.

9. The noise reduction member according to claim 8, characterized in that: The multiple sound absorbing holes of the multiple ring segments are arranged in multiple rows along the circumference of the ring body, one row has one sound absorbing hole, or one row has multiple sound absorbing holes arranged in sequence along the direction of the oblique height line of the ring body.

10. The noise reduction member according to claim 9, characterized in that: The sound absorbing holes are circular holes, and along the direction from the air outlet end toward the air inlet end, the radius of the plurality of sound absorbing holes in the same row gradually increases.

11. The noise reduction component according to any one of claims 1 to 4, characterized in that: Also includes: The sound absorbing member is made of sound absorbing material and has ventilation holes. The sound absorbing member is arranged on the outer wall surface or the inner wall surface of the ring body, and the air outlet end of the ring body is connected with the ventilation holes.

12. The noise reduction component according to any one of claims 1 to 4, characterized in that: The end surface of the air inlet end is arranged obliquely or vertically relative to the central axis of the ring body.

13. The noise reduction component according to any one of claims 1 to 4, characterized in that: The ring body is a plastic part or a foam part.

14. An air inlet module, characterized in that: include: A fan device having an air inlet; and The noise reduction component according to any one of claims 1 to 13 is arranged on the air inlet side of the fan device, and the air outlet end of the noise reduction component is connected to the air inlet of the fan device.

15. The air inlet module according to claim 14, characterized in that: Also includes: The filter component is arranged on the air inlet side of the noise reduction component.

16. The air inlet module according to claim 15, characterized in that: The angle between the end face of the air outlet side of the filter component and the end face of the air inlet side of the noise reduction component is -30° to 30°.

17. The air inlet module according to claim 15, characterized in that: The filter component is tilted relative to the central axis of the fan device, the central axis of the noise reduction component coincides with the central axis of the fan device, and the end face of the air outlet side of the filter component is parallel to the end face of the air inlet end of the noise reduction component.

18. The air inlet module according to any one of claims 14 to 17, characterized in that: The fan device includes an air inlet plate provided with the air inlet, and the ring body of the noise reduction component and the air inlet plate are an integrated structure, or the ring body of the noise reduction component and the air inlet plate are a split assembly structure.

19. An air conditioner, characterized in that: The invention comprises the air inlet module according to any one of claims 14 to 18.

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