A purifier

Abstract

The application relates to the technical field of purifiers, and provides a purifier which comprises a wind wheel and a lower air duct arranged around the outer periphery of the wind wheel, the wind wheel is connected with a driving piece, the outer ring of the wind wheel is provided with at least two layers of annular blocking ribs which are arranged at intervals along the axial direction, and the inner wall of the lower air duct is provided with a matching groove matched with the annular blocking ribs; during installation, the annular blocking ribs extend into the matching groove. Based on the above, the backflow of air flow can be effectively blocked, the noise can be reduced, and the purification efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of air purifier technology, and specifically to an air purifier. Background Technology

[0002] As people's demands for indoor air quality continue to increase, optimizing the performance of air purifiers has become an important direction for technological development. Currently, air purifiers are constantly being improved in terms of noise reduction, aiming to minimize the noise level of the purifier.

[0003] Existing methods to reduce noise include wrapping the casing with sponge, adding spring supports to isolate vibration, using microphones to collect noise, or limiting the fan speed. However, during the purification process, some airflow recirculates between the outer ring of the impeller and the lower air duct, affecting purification efficiency and causing uneven airflow, resulting in significant noise.

[0004] Therefore, this application studies a purifier that can effectively block airflow backflow, reduce noise, and improve purification efficiency. Utility Model Content

[0005] In order to effectively block airflow backflow, reduce noise, and improve purification efficiency, this application provides a purifier.

[0006] The air purifier provided in this application adopts the following technical solution: An air purifier includes a fan and a downdraft duct arranged around the outer periphery of the fan. The fan is connected to a drive component. The outer ring of the fan extends axially and is provided with at least two layers of annular baffles at intervals. The inner wall of the downdraft duct has mating grooves that mate with the annular baffles one by one. During installation, the annular baffles extend into the mating grooves.

[0007] By adopting the above technical solution, the annular baffle ribs cooperate with the matching grooves on the inner wall of the downdraft duct, which can effectively block the backflow of rising airflow, increase the backflow stroke, and reduce the problems of reduced purification efficiency and increased noise caused by airflow backflow.

[0008] Optionally, the annular retaining rib includes a first retaining rib, a second retaining rib, and a third retaining rib arranged layer by layer from the outside to the inside, and the mating groove is provided with the first retaining rib, the second retaining rib, and the third retaining rib one by one.

[0009] By adopting the above technical solution, the airflow recirculation path becomes more tortuous, thereby more effectively reducing airflow recirculation, further reducing noise, and improving purification efficiency.

[0010] Optionally, at least one of the annular retaining ribs is provided with a plurality of toothed grooves spaced apart.

[0011] By adopting the above technical solution, the toothed groove can disperse the airflow, making the airflow more uniform and stable, thereby further reducing the noise generated by the rapid flow of gas.

[0012] Optionally, the wind turbine includes a wind turbine frame and wind turbine blades, the wind turbine blades are disposed inside the wind turbine frame, the annular baffle is disposed on the outer periphery of the wind turbine frame, and the wind turbine blades are inclined at 45°.

[0013] By adopting the above technical solutions, the wind turbine can more effectively drive the airflow when rotating, thereby improving the wind turbine's output efficiency.

[0014] Optionally, the air inlet of the downdraft duct is provided with an air inlet screen.

[0015] By adopting the above technical solution, the airflow entering the wind turbine is dispersed into a uniform flow, which can reduce the jet phenomenon when the airflow enters the wind turbine, reduce the noise caused by uneven airflow, and improve the purification efficiency of the airflow.

[0016] Optionally, an inner air duct is connected above the wind turbine, and skylights are spaced apart around the periphery of the inner air duct, with sound-absorbing cotton installed inside the skylights.

[0017] By adopting the above technical solutions, the noise generated when the airflow moves rapidly in the duct can be effectively reduced, thereby improving the noise reduction effect of the air purifier.

[0018] Optionally, the lower air duct is connected to an upper air duct, the upper air duct is connected to an upper shell, the upper shell has an air outlet, an air outlet grille is provided inside the air outlet, and the air outlet grille is connected to the outer periphery of the inner air duct.

[0019] By adopting the above technical solutions, the airflow within the duct becomes smoother, reducing turbulence and backflow within the duct, and further reducing noise.

[0020] Optionally, it also includes a support body and a filter. The support body has several air inlets, and filters are provided on both sides of the support body. The support body is connected to the lower part of the downdraft.

[0021] In summary, this application includes the following beneficial technical effects: 1. The ring-shaped baffle ribs cooperate with the grooves on the inner wall of the downdraft duct to effectively block the backflow of rising airflow, increase the backflow stroke, and reduce the problems of reduced purification efficiency and increased noise caused by airflow backflow. 2. The first, second, and third baffles make the airflow recirculation path more tortuous, thereby more effectively reducing airflow recirculation, further reducing noise, and improving purification efficiency; 3. The toothed grooves can disperse the airflow, making it more uniform and stable, thereby further reducing the noise generated by the rapid flow of gas. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0023] In the diagram: Figure 1 This is a cross-sectional schematic diagram showing the cooperation between the impeller and the downdraft in the purifier of the present application embodiment; Figure 2 This is a schematic diagram illustrating the structure of the impeller in the purifier of this application embodiment; Figure 3 This is a schematic diagram illustrating the internal structure of the downdraft duct in the air purifier of this application embodiment; Figure 4 This is an embodiment of the present application. Figure 1 Enlarged view of point C in the middle; Figure 5 This is a cross-sectional schematic diagram of the purifier in the embodiment of this application, excluding the main support body; Figure 6 This is a schematic diagram illustrating the structure of the air intake mesh in the purifier of this application embodiment; Figure 7 This is a schematic diagram of the internal air duct structure in the purifier of this application embodiment; Figure 8 This is a cross-sectional schematic diagram of the air purifier in the embodiment of this application.

[0024] Reference numerals: 1. Wind turbine; 101. Wind turbine frame; 102. Wind turbine blade; 2. Lower air duct; 3. Drive component; 4. Annular baffle; 41. First baffle; 42. Second baffle; 43. Third baffle; 5. Mating groove; 6. Toothed groove; 7. Air inlet screen; 8. Inner air duct; 9. Skylight; 10. Sound-absorbing cotton; 11. Upper air duct; 12. Outer shell; 13. Air outlet; 14. Air outlet grille; 15. Support body; 16. Filter; 17. Air inlet. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0026] This application discloses an air purifier. (Refer to...) Figures 1-4The air purifier includes a fan wheel 1 and a lower air duct 2 arranged around the outer periphery of the fan wheel 1. The fan wheel 1 is connected to a drive component 3, which is a motor, driving the fan wheel 1 to rotate. The outer ring of the fan wheel 1 extends axially and is provided with at least two layers of annular baffles 4 at intervals. The inner wall of the lower air duct 2 has mating grooves 5 that mate with the annular baffles 4 one by one; during installation, the annular baffles 4 extend into the mating grooves 5. This effectively blocks the upward airflow backflow, increases the backflow stroke, and reduces the problems of reduced purification efficiency and increased noise caused by airflow backflow, resulting in a high airflow and noise reduction effect.

[0027] Reference Figure 4 In some embodiments, the annular baffle 4 includes a first baffle 41, a second baffle 42, and a third baffle 43 arranged layer by layer from the outside inward, with the mating groove 5 corresponding to the baffles. In this embodiment, the lower end of the first baffle 41 is higher than the lower ends of the second baffle 42 and the third baffle 43, and the position of the mating groove 5 corresponds one-to-one with the first baffle 41, the second baffle 42, and the third baffle 43, making the airflow return path more tortuous, thereby more effectively reducing airflow return and further reducing noise.

[0028] Reference Figure 2 In some embodiments, at least one annular baffle 4 is provided with a plurality of toothed grooves 6 spaced apart. In this embodiment, the first baffle 41, the second baffle 42, and the third baffle 43 are all provided with a plurality of toothed grooves 6 spaced apart along their lower ends. The shape of the toothed grooves 6 can be a rectangular structure, a triangular structure, a trapezoidal structure, etc. The toothed grooves 6 can disperse the airflow, making the airflow more uniform and stable, thereby further reducing the noise generated by the rapid flow of gas.

[0029] Reference Figure 5 In some embodiments, the impeller 1 includes an impeller frame 101 and impeller blades 102. The impeller blades 102 are disposed inside the impeller frame 101, and annular baffles 4 are disposed on the outer periphery of the impeller frame 101. The impeller blades 102 are inclined at 45°. This allows the impeller 1 to more effectively drive the airflow when rotating, thereby improving the air output efficiency of the impeller 1.

[0030] Reference Figure 5 and Figure 6 In some embodiments, the air inlet of the downdraft duct 2 is provided with an air inlet screen 7. The air inlet screen 7 is snapped onto the downdraft duct 2 by a snap-fit ​​method. By cutting the rapid flow of air with the air inlet screen 7, the airflow becomes more uniform, reducing noise caused by uneven airflow.

[0031] Reference Figure 5 and Figure 7In some embodiments, an inner air duct 8 is connected above the impeller 1, and multiple skylights 9 are evenly spaced around the periphery of the inner air duct 8. Sound-absorbing cotton 10 is installed inside the skylights 9. This effectively reduces the noise generated when the airflow moves rapidly within the air duct, improving the noise reduction effect of the air purifier.

[0032] Reference Figure 5 In some embodiments, the lower air duct 2 is connected to the upper air duct 11, the upper air duct 11 is connected to the upper shell, the upper shell has an air outlet 13, and an air outlet grille 14 is provided inside the air outlet 13. The air outlet grille 14 is connected to the outer periphery of the inner air duct 8. This makes the airflow within the air duct smoother, reduces turbulence and backflow within the air duct, and further reduces noise.

[0033] Reference Figure 8 In some embodiments, the system also includes a support body 15 and a filter 16. The support body 15 has several air inlets 17, and filters 16 are provided on both sides of the support body 15. The filters 16 are corresponding to the air inlets 17 on both sides. The support body 15 is connected to the lower air duct 2. An air inlet screen 7 is installed between the support body 15 and the lower air duct 2. The drive unit 3 drives the impeller 1 to rotate, which drives the outside air to pass through the filters 16 on both sides and enter through the air inlets 17. The air flows upward through the support body 15 and through the air inlet screen 7. The air inlet screen 7 cuts the airflow, making the airflow uniform and reducing noise. After passing through the lower air duct 2 around the impeller 1, the return path is extended by the cooperation of the annular baffle 4 and the matching groove 5, which reduces noise. Then it passes through the outer shell 12 of the upper air duct 11 and the outer shell 12 of the inner air duct 8. The sponge of the skylight 9 on the inner air duct 8 further absorbs noise. Finally, the air flows out of the air outlet 13 from the air outlet grille 14.

[0034] The implementation principle of the purifier in this application embodiment is as follows: the annular baffle 4 cooperates with the matching groove 5 on the inner wall of the lower air duct 2, which can effectively block the backflow of rising airflow, increase the backflow stroke, and reduce the problems of reduced purification efficiency and increased noise caused by airflow backflow.

[0035] The above are exemplary embodiments disclosed in this invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this invention as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0036] It should be understood that, as used herein, the singular form "a" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the associatedly listed items. The embodiment numbers disclosed above are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A purifier, characterized in that: It includes a wind turbine and a downdraft duct arranged around the outer periphery of the wind turbine. The wind turbine is connected to a drive component. The outer ring of the wind turbine extends axially and is provided with at least two layers of annular baffles at intervals. The inner wall of the downdraft duct is provided with mating grooves that mate with the annular baffles one by one. During installation, the annular baffles extend into the mating grooves.

2. The air purifier according to claim 1, characterized in that: The annular retaining ribs include a first retaining rib, a second retaining rib, and a third retaining rib, which are arranged layer by layer from the outside to the inside. The mating groove is provided with the first retaining rib, the second retaining rib, and the third retaining rib one by one.

3. A purifier according to claim 1 or 2, characterized in that: At least one of the annular retaining ribs is provided with a plurality of toothed grooves spaced apart.

4. The air purifier according to claim 1, characterized in that: The wind turbine includes a wind turbine frame and wind turbine blades. The wind turbine blades are disposed inside the wind turbine frame. The annular baffle is disposed on the outer periphery of the wind turbine frame. The wind turbine blades are inclined at 45°.

5. The air purifier according to claim 1, characterized in that: The air inlet of the downdraft duct is equipped with an air intake screen.

6. The air purifier according to claim 1, characterized in that: An internal air duct is connected above the wind turbine, and skylights are spaced apart around the perimeter of the internal air duct. Sound-absorbing cotton is installed inside the skylights.

7. The air purifier according to claim 6, characterized in that: The lower air duct is connected to the upper air duct, the upper air duct is connected to the upper shell, the upper shell has an air outlet, an air outlet grille is provided inside the air outlet, and the air outlet grille is connected to the outer periphery of the inner air duct.

8. The air purifier according to claim 1, characterized in that: It also includes a support body and a filter. The support body has several air inlets and filters are provided on both sides of the support body. The support body is connected to the lower part of the downdraft.

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