Silencer volute and air conditioner

Abstract

The embodiment of the present application provides a mute volute and an air conditioner, the mute volute comprises a body shell and an inner surrounding plate, the inner surrounding plate is arranged inside the body shell, so as to define a fan blade mounting cavity and a resonance cavity which are isolated from each other in the inside of the body shell, the resonance cavity is formed between the inner surrounding plate and the body shell, and the cross-sectional area of the resonance cavity gradually changes along the extension direction of the resonance cavity.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, specifically to a silent volute and an air conditioner. Background Technology

[0002] The volute structure is used to fix the fan blade shaft and is a major air-expelling component in air conditioners. In related technologies, significant noise is generated within the volute structure during fan blade operation and air extraction, failing to adequately meet the requirements for quiet operation. Utility Model Content

[0003] This application provides a silent volute and an air conditioner, which can effectively reduce noise and better meet the requirements for silent operation.

[0004] On one hand, embodiments of this application provide a silent volute, including a main body shell and an inner shroud. The inner shroud is disposed inside the main body shell to define mutually isolated fan blade mounting cavity and resonant cavity inside the main body shell. The resonant cavity is formed between the inner shroud and the main body shell, and the cross-sectional area of ​​the resonant cavity gradually changes along the extension direction of the resonant cavity.

[0005] In some embodiments, the silent volute includes a partition that extends along a curve between the inner enclosure and the body shell, such that the cross-sectional area of ​​the resonant cavity gradually changes along the extension direction of the resonant cavity.

[0006] In some embodiments, the curve is a serpentine curve or an S-shaped curve, and the partition is a serpentine plate or an S-shaped plate.

[0007] In some embodiments, the resonant cavity is disposed around the blade mounting cavity, and the blade mounting cavity and the resonant cavity are formed on both sides of the inner enclosure plate.

[0008] In some embodiments, the main body shell is provided with an external air outlet, and the inner shroud is provided with an internal air outlet, the internal air outlet connecting the external air outlet and the fan blade mounting cavity.

[0009] In some embodiments, one end of the inner shroud is bent to form a volute tongue, and the volute tongue and the inner air outlet are arranged adjacent to each other.

[0010] In some embodiments, the body shell includes a base plate and an outer peripheral plate disposed on the base plate, an inner peripheral plate disposed on the base plate, a resonant cavity formed between the inner peripheral plate and the outer peripheral plate, and a fan blade mounting cavity formed on the side of the inner peripheral plate away from the outer peripheral plate.

[0011] In some embodiments, the base plate is provided with a fan blade shaft mounting part, which is used to fix the fan blade shaft.

[0012] On the other hand, embodiments of this application provide an air conditioner that includes the silent volute described in any of the above embodiments.

[0013] In some embodiments, the air conditioner includes an air inlet shroud connected to the silent volute to cover the fan blade mounting cavity and the resonant cavity.

[0014] This embodiment of the application provides a resonant cavity within the silent volute. The resonant cavity and the fan blade mounting cavity are arranged adjacent to each other and have a variable cross-section structure. This can cause reflection cancellation and resonance absorption of noise at multiple target frequencies, resulting in a wide range of noise reduction frequencies. This can effectively reduce noise and better meet the requirements for silent operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an isometric structural diagram of a silent volute provided in some embodiments of this application; Figure 2 This is a projected structural diagram of a silent volute provided in some embodiments of this application; Figure 3 This is another projected structural diagram of the silent volute provided in some embodiments of this application; Figure 4 This is a partial isometric structural diagram of an air conditioner provided in some embodiments of this application.

[0017] Explanation of key component symbols: 1-Silent volute, 10-Main body shell, 11-Base plate, 111-Fan blade shaft mounting part, 12-Outer plate, 121-Outer air part, 101-Fan blade mounting cavity, 102-Resonant cavity, 20-Inner shroud plate, 21-Inner air outlet part, 22-Voltage tongue part, 30-Baffle plate, 2-Fan blade, 3-Air inlet cover. Detailed Implementation

[0018] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0021] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0022] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0023] like Figures 1 to 3 As shown, on the one hand, the embodiments of this application provide a silent volute 1, including a main body shell 10 and an inner circumference plate 20, which can effectively reduce noise and better meet the requirements of silent operation.

[0024] Here, the main body shell 10 is the outer shell structure of the silent volute 1, forming an internal cavity. An inner shroud 20 is disposed inside the main body shell 10 to define mutually isolated fan blade mounting cavity 101 and resonant cavity 102 within the main body shell 10. The fan blade mounting cavity 101 accommodates the fan blade 2, which generates negative pressure when rotating. The resonant cavity 102 is formed between the inner shroud 20 and the main body shell 10, and the cross-sectional area of ​​the resonant cavity 102 gradually changes along its extension direction, giving the resonant cavity 102 a gradually changing cross-sectional structure.

[0025] When directional airflow needs to be controlled, the fan blade 2 rotates to generate negative pressure, causing air to flow in a preset direction through the fan blade mounting cavity 101. Noise is generated during this airflow, and this noise propagates into the resonant cavity 102. The resonant cavity 102 reflects and resonates the noise propagating within it, allowing the noise to be canceled out through reflection or converted into heat energy through resonance, thus eliminating the noise generated during airflow. Because the resonant cavity 102 has a gradually changing cross-section, noise of multiple target frequencies can be reflected, canceled out, and absorbed through resonance at different cross-sections, enabling the resonant cavity 102 to eliminate noise of multiple target frequencies.

[0026] Compared with related technologies, the silent volute 1 provided in this application embodiment is provided with a resonant cavity 102. The resonant cavity 102 and the fan blade mounting cavity 101 are arranged adjacent to each other and have a variable cross-section structure, which can cause reflection cancellation and resonance absorption of noise at multiple target frequencies. It has a wide noise reduction frequency range, which can effectively reduce noise and better meet the requirements of silent operation.

[0027] like Figure 1 and Figure 2 As shown, in some embodiments, the cross-sectional area of ​​the resonant cavity 102 can be gradually varied along the extension direction of the resonant cavity 102 by utilizing the positional design between the main body shell 10 and the inner enclosure plate 20.

[0028] like Figure 3 As shown, in some embodiments, the silent housing 1 may include a partition 30. The partition 30 is disposed between the inner shroud 20 and the main body shell 10 along a curve, so that the cross-sectional area of ​​the resonant cavity 102 gradually changes along the extension direction of the resonant cavity 102. In other words, the partition 30 has a curved panel structure, which defines a plurality of resonant cavity 102 segments with different cross-sectional areas within the resonant cavity 102, so that the resonant cavity 102 has a gradually changing cross-sectional structure.

[0029] The shape of the curve can be determined according to actual needs, and this application embodiment does not limit it. In some examples, the curve can be a serpentine curve or an S-shaped curve, that is, it has a continuous multi-bend shape. Accordingly, the partition 30 can be a serpentine plate or an S-shaped plate, which can effectively make the cross-sectional area of ​​the resonant cavity 102 gradually change along the extension direction of the resonant cavity 102.

[0030] In some embodiments, the resonant cavity 102 may be disposed around the fan blade mounting cavity 101, with the fan blade mounting cavity 101 and the resonant cavity 102 formed on both sides of the inner enclosure plate 20. By distributing the resonant cavity 102 around the fan blade mounting cavity 101, noise generated on each side of the fan blade mounting cavity 101 can enter the resonant cavity 102, thereby eliminating the noise generated on each side of the fan blade mounting cavity 101, further reducing the noise of the silent volute 1, and improving the noise reduction effect.

[0031] In some embodiments, the body shell 10 may include a base plate 11 and an outer peripheral plate 12 disposed on the base plate 11. An inner peripheral plate 20 is disposed on the base plate 11, a resonant cavity 102 is formed between the inner peripheral plate 20 and the outer peripheral plate 12, and a fan blade mounting cavity 101 is formed on the side of the inner peripheral plate 20 away from the outer peripheral plate 12. In some examples, the base plate 11 may be provided with a fan blade shaft mounting portion 111, which is used to fix the fan blade shaft of the fan blade 2, so that the fan blade 2 can be rotatably disposed in the air duct mounting cavity.

[0032] In some embodiments, the main body shell 10 may be provided with an outlet air section 121, and the inner shroud 20 may be provided with an inner air section 21, the inner air section 21 connecting the outlet air section 121 and the fan blade mounting cavity 101. Thus, air drawn into the fan blade mounting cavity 101 can be discharged sequentially through the inner air section 21 and the outlet air section 121. In some examples, the outlet air section 121 may be formed on the outer shroud 12.

[0033] In some examples, one end of the inner shroud 20 can be bent to form a volute tongue 22, which is arranged adjacent to the inner air outlet 21. The volute tongue 22 can divert and guide the air in the fan blade mounting cavity 101, so that most of the air in the fan blade mounting cavity 101 flows to the inner air outlet 21, thereby achieving the purpose of air outlet.

[0034] like Figures 1 to 4 As shown, on the other hand, this application embodiment provides an air conditioner that includes the silent volute 1 of any of the above embodiments. The type of air conditioner can be determined according to actual needs, and may be, for example, a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, a ceiling-mounted unit, etc., and this application embodiment does not limit this. The air conditioner provided by this application embodiment has the above-mentioned silent volute 1, which can effectively reduce noise and better meet the requirements for silent operation.

[0035] In some embodiments, the air conditioner may include an air inlet shroud 3, which is connected to a silent volute 1 to cover the fan blade mounting cavity 101 and the resonant cavity 102. The air inlet shroud 3 can guide air into the air duct mounting cavity to achieve an air intake guiding effect.

[0036] The silent volute and air conditioner provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A silent volute, characterized in that, The device includes a main body shell and an inner shroud. The inner shroud is disposed inside the main body shell to define mutually isolated fan blade mounting cavities and resonant cavities within the main body shell. The resonant cavities are formed between the inner shroud and the main body shell, and the cross-sectional area of ​​the resonant cavities gradually changes along the extension direction of the resonant cavities.

2. The silent volute according to claim 1, characterized in that, The silent volute includes a partition plate that extends along a curve between the inner enclosure plate and the main body shell, so that the cross-sectional area of ​​the resonant cavity gradually changes along the extension direction of the resonant cavity.

3. The silent volute according to claim 2, characterized in that, The curve is a serpentine curve or an S-shaped curve, and the partition is a serpentine plate or an S-shaped plate.

4. The silent volute according to claim 1, characterized in that, The resonant cavity is arranged around the wind turbine mounting cavity, and the wind turbine mounting cavity and the resonant cavity are formed on both sides of the inner enclosure plate.

5. The silent volute according to claim 1, characterized in that, The main body shell is provided with an external air outlet, and the inner circumference plate is provided with an internal air outlet. The internal air outlet connects the external air outlet and the fan blade mounting cavity.

6. The silent volute according to claim 5, characterized in that, One end of the inner circumference panel is bent to form a volute tongue, and the volute tongue and the inner air outlet are arranged adjacent to each other.

7. The silent volute according to claim 1, characterized in that, The main body shell includes a base plate and an outer plate disposed on the base plate. An inner plate is disposed on the base plate. The resonant cavity is formed between the inner plate and the outer plate. The fan blade mounting cavity is formed on the side of the inner plate away from the outer plate.

8. The silent volute according to claim 7, characterized in that, The base plate is provided with a fan blade shaft mounting part, which is used to fix the fan blade shaft.

9. An air conditioner, characterized in that, Includes the silent volute according to any one of claims 1-8.

10. The air conditioner according to claim 9, characterized in that, The air conditioner includes an air inlet cover, which is connected to the silent volute to cover the fan blade mounting cavity and the resonant cavity.

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