Air deflector and air conditioner

Abstract

The air deflector comprises a plate body and at least one resonant cavity, the plate body is provided with an air guide face, the number of the resonant cavity is at least one, the resonant cavity is arranged on the plate body, and the resonant cavity is provided with an opening located in the air guide face. According to the air deflector provided by the embodiment of the utility model, the at least one resonant cavity is arranged on the air guide surface, and resonance sound absorption is carried out through the resonant cavity, so that the air noise of airflow flowing through the air deflector can be effectively reduced, the noise is improved, and the use experience of equipment using the air deflector is improved.

Description

Technical Field

[0001] The utility model relates to the field of air conditioners, in particular to an air guide plate and an air conditioner. Background Art

[0002] In the related art, during the use of the air conditioner, there is a large working noise, such as the working noise of the compressor, the working noise of the fan and the wind noise generated during the flow of air.

[0003] However, the working noise of the compressor and fan can be effectively reduced by setting up sound-proofing structures such as sound insulation cotton, and the impact on the overall cost of the air conditioner is relatively low. However, wind noise is difficult to reduce effectively, resulting in a poor user experience of the air conditioner. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an air deflector, which can effectively reduce wind noise and improve the user experience.

[0005] The utility model further provides an air conditioner adopting the air guide plate.

[0006] According to the first aspect of the present invention, the wind guide plate includes: a plate body and a resonance cavity, wherein the plate body has a wind guide surface, the resonance cavity is at least one, the resonance cavity is arranged on the plate body, and the resonance cavity has an opening located on the wind guide surface.

[0007] According to the wind guide plate of the embodiment of the utility model, by arranging at least one resonance cavity on the wind guide surface and performing resonance sound absorption through the resonance cavity, the wind noise of the airflow passing through the wind guide plate can be effectively reduced, the noise can be improved, and the user experience of the equipment using the wind guide plate of the utility model can be improved.

[0008] According to some embodiments of the present invention, there are multiple resonance cavities, and the multiple resonance cavities are arranged in an array on the wind guide surface.

[0009] Further, the volumes of the plurality of resonance cavities are the same, and the opening sizes of at least two of the plurality of resonance cavities are different.

[0010] Furthermore, the volumes of the plurality of resonance cavities are the same, and the number of openings on each of the resonance cavities is at least one.

[0011] According to some embodiments of the present application, a column is disposed in the resonance cavity, at least a portion of the column extends into the opening, and an annular gap is formed between the column and the opening to improve noise.

[0012] According to some embodiments of the utility model, the plate body includes: a first plate body and a second plate body, the first plate body is opposite to the second plate body, and the resonance cavity is defined between the first plate body and the second plate body, and the side of the second plate body away from the first plate body is formed as the wind guide surface.

[0013] Furthermore, the second plate body is provided with the opening, the column body is arranged on the first plate body and extends toward the second plate body, and the column body is also suitable for blocking dust.

[0014] Furthermore, a projection area of ​​the column on the first plate is smaller than or equal to an opening area of ​​the opening.

[0015] Furthermore, the first plate body and / or the second plate body are provided with first ribs extending along the length direction of the plate body and second ribs extending along the width direction of the plate body, and the first ribs and the second ribs are arranged in an alternating manner so that the first plate body and the second plate body can be combined to form the resonance cavity arranged in an array.

[0016] Furthermore, a sealing flange is provided on the first plate body or the second plate body, and the sealing flange is arranged around the first rib and the second rib to seal the resonance cavity.

[0017] According to some embodiments of the present invention, a plurality of first fixing parts are provided on the first plate body, and a second fixing part cooperating with the first fixing part is provided on the second plate body to fix the first plate body and the second plate body.

[0018] According to the second aspect of the present invention, the air conditioner comprises: a casing and an air guide plate, wherein the casing has an air outlet, the air guide plate is movably disposed at the air outlet, and when the air guide plate is in an open position, the air guide surface is at least partially opposite to the air outlet.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic diagram of an air guide plate according to an embodiment of the utility model;

[0022] Figure 2 1 is a schematic diagram of a disassembled air guide plate according to an embodiment of the utility model;

[0023] Figure 3 is a schematic diagram of a first plate body according to an embodiment of the utility model;

[0024] Figure 4 is a schematic diagram of a second plate according to an embodiment of the utility model;

[0025] Figure 5 is a cross-sectional schematic diagram of an air conditioner according to an embodiment of the utility model;

[0026] Figure 6 is a schematic diagram of an air conditioner according to an embodiment of the utility model;

[0027] Figure 7 2 is another schematic diagram of an air conditioner according to an embodiment of the present utility model.

[0028] Reference numerals:

[0029] Air conditioner 1000,

[0030] Air guide plate 100, housing 200,

[0031] Plate body 10, first plate body 11, sealing flange 111, first fixing portion 112, column 113, second plate body 12, first rib 121, second rib 122, second fixing portion 123,

[0032] Resonance cavity 20, opening 21,

[0033] Air outlet 210. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those generally understood by technicians in the technical field of the present invention; the terms used in the present invention and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0036] The reference to "embodiment" in the present invention means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", and "attachment" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The term "and / or" in the present invention is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0039] In the embodiments of the present invention, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present invention shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary and should not constitute any limitation on the present invention.

[0040] In the description of the present invention, 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 invention 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 invention.

[0041] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0042] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0043] The term "plurality" used in the present invention refers to more than two (including two).

[0044] Reference below Figure 1-Figure 7 The wind guide plate 100 and the air conditioner 1000 according to the embodiment of the present invention are described.

[0045] like Figure 1 and Figure 2 As shown, the wind guide plate 100 according to the first embodiment of the utility model includes: a plate body 10 and a resonance cavity 20, the plate body 10 has a wind guide surface, there is at least one resonance cavity 20, the resonance cavity 20 is arranged on the plate body 10, and the resonance cavity 20 has an opening 21 located on the wind guide surface.

[0046] Specifically, the plate body 10 has an air guide surface, which refers to a surface that can change the direction of the airflow after coming into contact with the airflow. The air guide plate 100 can adjust the flow direction of the airflow through the air guide surface so that the airflow can flow to the expected direction, and the air guide plate 100 can swing so that the airflow can sweep the air within a certain range, thereby improving the airflow disturbance effect and improving the air treatment effect.

[0047] For example, when the wind guide plate 100 is applied to a fan, the air flow effect within the range of the fan can be improved; when the wind guide plate 100 is applied to an air treatment device, the contact between the air within the range and the treated air flow can be more complete, resulting in a better air treatment effect; when the wind guide plate 100 is applied to an air conditioner 1000, the indoor temperature regulation effect can be better and the temperature regulation can be more uniform.

[0048] It should be pointed out that in the prior art, the air guide plate 100 can only open or close the air outlet 210, or guide the direction of the air flow, while the wind noise generated by the air flow flowing out of the air outlet 210 is difficult to eliminate by the air guide plate 100. The air guide plate 100 may even easily generate flapping vibrations, further increasing the noise and reducing the user experience.

[0049] Based on this, the utility model further sets at least one resonance cavity 20 on the plate body 10. The resonance cavity 20 can be a separate structure, which is set on the plate body 10, and one side surface of the resonance cavity 20 defines a wind guide surface. The resonance cavity 20 can also be integrated on the plate body 10, and one side surface of the resonance cavity 20 defines a wind guide surface, and the resonance cavity 20 has an opening 21 located on the wind guide surface, so that the airflow can enter the resonance cavity 20 or flow out of the resonance cavity 20, thereby achieving noise reduction and noise elimination through the resonance cavity 20, and effectively reducing the airflow noise.

[0050] It should be pointed out that each resonance cavity 20 includes a cavity and an opening 21 connected to the cavity, forming a Helmholtz resonator. An air column is formed in the area where the opening 21 is located. After the air column is disturbed by the air flow passing through the wind guide surface, it will move into the cavity and compress the gas in the cavity. At this time, the pressure in the cavity increases, the movement of the air column into the cavity is hindered, and it begins to move out of the cavity. After passing the equilibrium position, the pressure in the cavity decreases, and the air column moves inward again, circulating to perform resonant sound absorption and achieve noise reduction effect.

[0051] According to the wind guide plate 100 of the embodiment of the utility model, by arranging at least one resonance cavity 20 on the wind guide surface and performing resonance sound absorption through the resonance cavity 20, the wind noise of the airflow flowing through the wind guide plate 100 can be effectively reduced, and the noise can be improved, so as to enhance the user experience of the equipment using the wind guide plate 100 of the utility model.

[0052] It can be understood that the device using the air guide plate 100 of the embodiment of the utility model can be an air treatment device (such as a humidifier, a sterilizer), a fan, an air conditioner 1000, etc.

[0053] See also Figure 2 , Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, there are multiple resonance cavities 20, and the multiple resonance cavities 20 are arranged in an array on the wind guide surface.

[0054] It can be understood that the resonant wavelength of the Helmholtz resonator is: Wherein V is the volume of the resonance cavity 20, l is the length of the opening 21 area, d is the diameter of the opening 21, and S is the area of ​​the opening 21. When the mechanical wave wavelength of the airflow flowing through the wind guide surface is the same as the resonance wavelength, a stronger mechanical wave is generated. Therefore, the Helmholtz resonator can be used in three aspects: 1. Energy absorption through friction in the tube; 2. Due to the radiation of the opening 21, the incident wave is diffused; 3. Energy is stored internally to extend the action time. The three aspects are combined to generate resonance and achieve sound insulation and noise reduction.

[0055] However, the wavelength range of a single resonance cavity 20 is relatively narrow, and the use of a plurality of resonance cavities 20 in combination can further increase the wavelength range of the resonance cavity 20 to achieve noise reduction in a larger frequency and a larger wavelength range, thereby improving the noise reduction effect of the air guide plate 100.

[0056] Specifically, the multiple resonance cavities 20 are arranged in multiple rows and columns on the wind guide surface. The volumes of the multiple resonance cavities 20 can be the same, and the areas of the openings 21 can be different. Alternatively, the areas of the openings 21 of the multiple resonance cavities 20 can be the same, and the volumes of the resonance cavities 20 can be different. Alternatively, the volumes and areas of the openings 21 of the multiple resonance cavities 20 can be different. By setting up the multiple resonance cavities 20, the noise reduction wavelength and frequency range of the resonance cavity 20 can be increased, thereby improving the noise reduction effect.

[0057] like Figure 2 and Figure 4 As shown, exemplarily, the volumes of the multiple resonance cavities 20 are the same, and the sizes of the openings 21 of at least two of the multiple resonance cavities 20 are different, so as to achieve noise reduction and sound elimination of mechanical waves of different frequencies and wavelength ranges through the resonance cavities 20 with different opening 21 areas, so as to enrich the noise reduction wavelength and frequency range of the resonance cavity 20 and improve the noise reduction effect.

[0058] like Figure 4 As shown, the volumes of the multiple resonance cavities 20 are the same, and the number of openings 21 on each resonance cavity 20 is at least one.

[0059] Exemplarily, in a row of resonance cavities 20, some resonance cavities 20 have one opening 21, some resonance cavities 20 have two openings 21, and some resonance cavities 20 have three or four openings 21, so that the areas of the openings 21 of the resonance cavities 20 are the same or different, thereby achieving sound absorption and noise reduction in different frequency ranges and improving the noise reduction effect.

[0060] It should be pointed out that the length of the wind guide surface is relatively long, and the wavelength range and frequency range of the wind noise of the air flow flowing through different areas of the wind guide surface are similar. Correspondingly, the wind guide surface can be divided into multiple areas. The multiple resonance cavities 20 in each area include several openings 21 with different numbers, several openings 21 with the same number but different areas, etc., so that the wind guide plate 100 has better overall sound absorption and noise reduction effects.

[0061] like Figure 3 and Figure 4 As shown, a column 113 is disposed in the resonance cavity 20 , and at least a portion of the column 113 extends into the opening 21 , forming an annular gap between the column 113 and the opening 21 to improve noise.

[0062] Specifically, the projection area of ​​the column 113 on the first plate 11 is smaller than or equal to the opening area of ​​the opening 21 , so that there is a gap between the portion of the column 113 extending into the opening 21 and the peripheral wall of the opening 21 , and the gap forms an annular gap.

[0063] It should be pointed out that when the airflow flows through the wind guide surface and at least part of the airflow enters the resonance cavity, when the airflow entering the resonance cavity is too large, a whistling sound (such as a whistle or a flute) will be generated in the opening 21 area. The present application can form an annular gap, that is, an annular gap, between the opening 21 and the column 113 through the setting of the column 113 to reduce the air intake in the area where the opening 21 is located. The airflow rate entering the resonance cavity per unit time is smaller, and the probability of generating whistling is lower, which can effectively improve the working noise and enhance the user experience.

[0064] Combination Figure 2 , Figure 3 and Figure 4 As shown, according to some embodiments of the utility model, the plate body 10 includes: a first plate body 11 and a second plate body 12, the first plate body 11 is opposite to the second plate body 12, and a resonance cavity 20 is defined between the first plate body 11 and the second plate body 12, and a side of the second plate body 12 away from the first plate body 11 is formed as a wind guide surface.

[0065] That is to say, in some embodiments, the resonance cavity 20 can be defined by the first plate body 11 and the second plate body 12, and there is no need to set the resonance cavity 20 structure separately on the plate body 10, which can simplify the structure of the air guide plate 100 and reduce the production cost of the air guide plate 100.

[0066] See also Figure 3 and Figure 4 As shown, further, the second plate body 12 is provided with an opening 21 , and the first plate body 11 is provided with a column 113 extending toward the second plate body 12 , and the column 113 is also suitable for blocking dust.

[0067] Specifically, the columns 113 can be arranged in an array, with a column 113 provided corresponding to each opening 21. The opening 21 area is easy for dust and foreign matter to enter, and the internal space of the resonance cavity 20 is larger than the area of ​​the opening 21 area, which makes it difficult to remove dust and foreign matter. The provision of the columns 113 can reduce the probability of dust and foreign matter entering the opening 21 area, making the cleaning of the air guide plate 100 simpler and more convenient, and can also prevent foreign matter from entering the air guide plate 100 and aggravating noise, thereby improving the noise reduction effect.

[0068] Furthermore, in the relative direction between the first plate 11 and the second plate 12 , the end surface of the column 113 is spaced apart from the opening 21 , and the projection area of ​​the column 113 on the first plate 11 is less than or equal to the area of ​​the opening 21 .

[0069] In this way, it can be ensured that there is a gap between the opening 21 and the column 113, so that the air column in the opening 21 area can reciprocate in the direction toward the cavity and out of the cavity, thereby achieving effective and reliable noise reduction and sound elimination, and the gap in the opening 21 area can be reduced to effectively prevent dust and foreign matter from entering the resonance cavity 20.

[0070] like Figure 3 and Figure 4 As shown, the first plate body 11 and / or the second plate body 12 are provided with first ribs 121 extending along the length direction of the plate body 10 and second ribs 122 extending along the width direction of the plate body 10, and the first ribs 121 and the second ribs 122 are alternately arranged so that the first plate body 11 and the second plate body 12 are combined to form a resonance cavity 20 arranged in an array.

[0071] Specifically, the first ribs 121 and the second ribs 122 can define a plurality of grid structures, each grid forming a side wall of a resonance cavity 20, and after the first plate body 11 and the second plate body 12 are assembled, the surfaces of the first plate body 11 and the second plate body 12 facing each other are respectively formed as the top and bottom of the resonance cavity 20, and the top is the surface adjacent to the wind guide surface, and an opening 21 is opened on the top.

[0072] It should be pointed out that the first rib 121 and the second rib 122 both extend in the thickness direction of the air guide plate 100. The first rib 121 can be formed only on the first plate body 11 or the second plate body 12. The first rib 121 can also include a first part and a second part, the first part is formed on the first plate body 11, and the second part is formed on the second plate body 12. The corresponding second rib 122 can also be formed only on the first plate body 11 or the second plate body 12. The second rib 122 can also include a third part and a fourth part, the third part is formed on the first plate body 11, and the fourth part is formed on the second plate body 12.

[0073] In this way, by setting the first rib 121 and the second rib 122, the resonance cavity 20 is constructed as a spliced ​​structure, and the grid structure can be formed on the first plate body 11 or the second plate body 12, which can further simplify the structure of the plate body 10 to reduce the processing difficulty and processing cost of the air guide plate 100.

[0074] like Figure 3 As shown, further, a sealing flange 111 is provided on the first plate body 11 or the second plate body 12, and the sealing flange 111 is arranged outside the first rib 121 and the second rib 122 to seal the resonance cavity 20. Therefore, by providing the sealing flange 111, the relative sealing of each resonance cavity 20 can be ensured to improve the noise reduction and silencing effect.

[0075] Of course, the sealing structure of the present invention is not limited thereto, and a flexible layer may also be provided on the first plate body 11 or the second plate body 12 , and the flexible layer abuts against the first ribs 121 and the second ribs 122 to achieve sealing of the resonance cavity 20 .

[0076] Combination Figure 3 , Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, a plurality of first fixing portions 112 are disposed on the first plate 11 , and a second fixing portion 123 cooperating with the first fixing portion 112 is disposed on the second plate 12 to fix the first plate 11 and the second plate 12 .

[0077] Specifically, the first fixing portion 112 and the second fixing portion 123 can be one or more combinations of threaded fastening, snap-fitting, and plug-in fitting. The first fixing portion 112 can include a first fixing portion located at the peripheral edge of the first plate body 11, and a plurality of second fixing portions located on the surface of the first plate body 11 facing the second plate body 12 and arranged at intervals. The corresponding second fixing portion 123 can include a third fixing portion located on the peripheral side of the second plate body 12, and a fourth fixing portion located on the surface of the second plate body 12 facing the first plate body 11 and arranged at intervals. The first fixing portion is connected and fixed to the third fixing portion, and the second fixing portion is connected and fixed to the fourth fixing portion.

[0078] In this way, not only the connection stability and reliability between the first plate body 11 and the second plate body 12 can be improved, but also the gap between the first plate body 11 and the second plate body 12 can be reduced, so that the sealing effect of the multiple resonance cavities 20 is better, thereby improving the noise reduction effect.

[0079] It should be pointed out that a circular chamfer can be provided on the side of the opening 21 facing the column 113 to guide the assembly between the first plate 11 and the second plate 12 through the guidance of the circular chamfer, thereby avoiding assembly interference of the column 113, reducing assembly difficulty and improving assembly efficiency.

[0080] like Figure 6 and Figure 7 As shown, the air conditioner 1000 according to the embodiment of the second aspect of the utility model includes: a casing 200 and an air guide plate 100, the casing 200 has an air outlet 210, the air guide plate 100 is movably arranged at the air outlet 210, and when the air guide plate 100 is in the open position, the air guide surface is at least partially opposite to the air outlet 210.

[0081] According to the air conditioner 1000 of the embodiment of the utility model, while the air flow is guided by the air guide plate 100, the air guide plate 100 is located at the tail end of the air outlet 210, which can reduce noise reduction and sound absorption to improve the user experience of the air conditioner 1000.

[0082] The other structures and operations of the air guide plate 100 and the air conditioner 1000 according to the embodiment of the utility model are known to ordinary technicians in the field and will not be repeated here.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0084] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wind deflector, characterized in that: include: A plate body, wherein the plate body has a wind guiding surface; A resonance cavity, wherein there is at least one resonance cavity, the resonance cavity is arranged on the plate body, and the resonance cavity has an opening located on the wind guide surface.

2. The air guide plate according to claim 1, characterized in that: There are multiple resonance cavities, and the multiple resonance cavities are arranged in an array on the wind guide surface.

3. The air guide plate according to claim 2, characterized in that: The volumes of the plurality of resonant cavities are the same, and the opening sizes of at least two of the plurality of resonant cavities are different.

4. The air guide plate according to claim 2, characterized in that: The volumes of the plurality of resonance cavities are the same, and the number of openings on each of the resonance cavities is at least one.

5. The air guide plate according to claim 1, characterized in that: A column is arranged in the resonance cavity, at least a part of the column extends into the opening, and an annular gap is formed between the column and the opening to improve noise.

6. The air guide plate according to claim 5, characterized in that: The plate body includes: a first plate body and a second plate body, the first plate body is opposite to the second plate body, and the resonance cavity is defined between the first plate body and the second plate body, and a side of the second plate body away from the first plate body forms the wind guide surface.

7. The wind deflector according to claim 6, characterized in that: The second plate body is provided with the opening, the column body is arranged on the first plate body and extends toward the second plate body, and the column body is also suitable for blocking dust.

8. The air guide plate according to claim 7, characterized in that: The projection area of ​​the column on the first plate is smaller than or equal to the opening area of ​​the opening.

9. The air guide plate according to claim 6, characterized in that: The first plate body and / or the second plate body are provided with first ribs extending along the length direction of the plate body and second ribs extending along the width direction of the plate body, and the first ribs and the second ribs are arranged in an alternating manner so that the first plate body and the second plate body are combined to form the resonance cavity arranged in an array.

10. The air guide plate according to claim 9, characterized in that: A sealing flange is further provided on the first plate body or the second plate body, and the sealing flange is arranged around the first rib and the second rib to seal the resonance cavity.

11. The wind deflector according to any one of claims 6 to 10, characterized in that: The first plate body is provided with a plurality of first fixing parts, and the second plate body is provided with a second fixing part matched with the first fixing parts, so as to fix the first plate body and the second plate body.

12. An air conditioner, characterized in that: include: A casing, wherein the casing has an air outlet; The wind guide plate according to any one of claims 1 to 11 is movably arranged at the air outlet, and when the wind guide plate is in an open position, the wind guide surface is at least partially opposite to the air outlet.

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