Air purifier and damping structure of air inlet device

Abstract

This utility model discloses a vibration damping structure for an air intake device and an air purifier. The air intake device includes a motor, a fan, an air intake shroud, and a rear shell. The motor is driven by the fan, and both the motor and the fan are housed within the air intake shroud. The rear shell is located on the side of the air intake shroud away from the air intake side. The vibration damping structure includes a damping element. The damping element is provided at least at one location: at the connection between the motor and the fan, at the connection between the air intake shroud and the rear shell, and between the motor and the air intake shroud. The damping element is a structural component with elastic deformation capability. This utility model can reduce the propagation of vibration from multiple directions and avoid hard contact between parts, thereby reducing noise generation at the source.

Description

Technical Field

[0001] This utility model relates to the field of air treatment technology, and in particular to a shock-absorbing structure for an air intake device and an air purifier. Background Technology

[0002] Air purifiers typically contain a fan, a motor to drive the fan, and filter components. When the motor drives the fan and operates independently, its inherent frequency causes the air purifier to vibrate. This vibration is transmitted through other components, resulting in overall vibration and noise during operation, which negatively impacts the user experience.

[0003] To address these issues, some related technologies incorporate shock-absorbing frames and components within the air purifier's intake system. However, due to flawed structural design, these components often result in poor shock absorption and consume significant space within the air purifier, thus increasing its overall size. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a shock-absorbing structure for an air intake device and an air purifier to improve the vibration and noise generated during the operation of the air purifier.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A vibration damping structure for an air intake device, the air intake device including a motor, a fan, an air intake shroud and a rear shell, the motor being drivenly connected to the fan, both the motor and the fan being disposed inside the air intake shroud, the rear shell being disposed on the side of the air intake shroud away from the air intake side, and the vibration damping structure including vibration damping components;

[0007] The shock absorber is provided at least one of the following locations: the connection between the motor and the impeller, the connection between the air inlet shroud and the rear shell, and between the motor and the air inlet shroud.

[0008] The shock absorber is a structural component with elastic deformation capability.

[0009] Furthermore, the motor includes a rotating shaft, a vibration-damping rotor, and a stator;

[0010] One end of the rotating shaft is connected to the wind turbine drive, and the shock-absorbing rotor is sandwiched between the stator and the other end of the rotating shaft.

[0011] Furthermore, a first shock absorber is sandwiched between one end of the rotating shaft and the wind turbine, and the first shock absorber is sleeved outside the one end of the rotating shaft.

[0012] Furthermore, the air inlet shroud includes an air inlet component and a fixing component;

[0013] The air inlet component is connected to the fixing component and together they form an air inlet duct.

[0014] The wind turbine is mounted on the air inlet duct;

[0015] The fixed end of the motor is fitted into the side of the fixing member facing the air inlet member;

[0016] A second shock absorber is sandwiched between the fixed end of the motor and the fixing member.

[0017] Furthermore, the motor includes a housing;

[0018] In the radial direction of the motor, the housing has at least two symmetrically arranged mounting notches;

[0019] The second shock absorber is embedded in the mounting notch so that the fastener passes through the second shock absorber and connects to the fixing member.

[0020] Furthermore, the second damping component includes a damping body and a damping pad;

[0021] The shock-absorbing body has a shock-absorbing pad at each of its two axial ends, and the outer diameter of the shock-absorbing pad is larger than that of the shock-absorbing body.

[0022] Furthermore, at least one third shock absorber is sandwiched between the air inlet shroud and the rear shell.

[0023] Furthermore, a connecting post is provided on the side of the air inlet hood facing the rear shell, and a connecting seat corresponding to the connecting post is provided on the rear shell;

[0024] The connecting column passes through the third shock absorber and connects to the connecting seat.

[0025] Furthermore, at least one of the third shock absorbers is provided at each corner of the rear shell, thereby creating a gap between the rear shell and the air inlet shroud.

[0026] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is as follows:

[0027] An air purifier includes the aforementioned shock-absorbing structure.

[0028] The beneficial effects of this utility model are as follows: by setting shock absorbers at the main vibration points of the air intake device of the air purifier, since the shock absorbers are structural components with elastic deformation capabilities, the shock absorbers can absorb the vibration generated by the motor operation and reduce the collision between two adjacent parts, thereby reducing the generation of abnormal noise. Attached Figure Description

[0029] Figure 1 This is an exploded view of the air outlet device in this utility model;

[0030] Figure 2 This is a cross-sectional view of the air outlet device in this utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the motor and the second shock absorber in this utility model;

[0032] Figure 4 This is an exploded view of the motor and the second shock absorber in this utility model.

[0033] Label Explanation:

[0034] 1. Air intake device;

[0035] 11. Motor; 111. Shaft; 112. Vibration-damping rotor; 113. Stator; 114. Housing; 1141. Mounting notch;

[0036] 12. Wind turbine;

[0037] 13. Air inlet hood; 131. Air inlet component; 132. Fixing component; 133. Air inlet duct; 134. Connecting column;

[0038] 14. Rear shell; 141. Connecting seat;

[0039] 15. Fasteners;

[0040] 2. Vibration damping structure; 21. First damping component; 22. Second damping component; 221. Damping body; 222. Damping pad; 23. Third damping component. Detailed Implementation

[0041] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0042] Please refer to Figures 1-4 An air purifier includes an air intake device 1 and a shock-absorbing structure 2. The air intake device 1 includes a motor 11, a fan 12, an air intake shroud 13, and a rear shell 14. The motor 11 is driven by the fan 12, and both the motor 11 and the fan 12 are housed within the air intake shroud 13. The rear shell 14 is located on the side of the air intake shroud 13 away from the air intake side. The shock-absorbing structure 2 includes shock-absorbing components. Shock-absorbing components are provided at least at one location: the connection between the motor 11 and the fan 12, the connection between the air intake shroud 13 and the rear shell 14, and between the motor 11 and the air intake shroud 13. The shock-absorbing components are structural components with elastic deformation capabilities. Optionally, the shock-absorbing components are made of rubber or silicone.

[0043] It is understandable that by setting shock absorbers at the main vibration points of the air intake device 1 of the air purifier, since the shock absorbers are structural components with elastic deformation capabilities, the shock absorbers can absorb the vibrations generated by the operation of the motor 11 and reduce the collision between each two adjacent parts, thereby reducing the generation of abnormal noise.

[0044] In some embodiments, the motor 11 includes a rotating shaft 111, a damping rotor 112, and a stator 113; one end of the rotating shaft 111 is connected to the impeller 12 for transmission, and the damping rotor 112 is sandwiched between the stator 113 and the other end of the rotating shaft 111. Preferably, the damping rotor 112 is also a structural component with elastic deformation capability, such as rubber, silicone, or other materials. Selecting a damping rotor 112 with elastic deformation capability is used to reduce the vibration generated when the motor 11 rotates, thereby reducing vibration and noise generation at the source, achieving the first level of noise interception.

[0045] It is worth noting that the shock-absorbing rotor 112 mentioned here is made by adding a rubber part at the connection between the magnet and the rotating shaft, which does not affect the cutting effect of the magnetic field lines.

[0046] In some embodiments, a first damping member 21 is sandwiched between one end of the rotating shaft 111 and the impeller 12, and the first damping member 21 is sleeved outside one end of the rotating shaft 111 to absorb vibration between the rotating shaft 111 and the impeller 12. This reduces the propagation of motor 11 vibration in the radial direction of the rotating shaft 111 and avoids hard contact between the rotating shaft 111 and the impeller 12, reducing noise generation at the connection between the impeller 12 and the rotating shaft 111, thus achieving a second layer of noise interception. Specifically, the rotating shaft 111 and the impeller 12 are coaxially arranged.

[0047] In some embodiments, the air inlet shroud 13 includes an air inlet component 131 and a fixing component 132; the air inlet component 131 and the fixing component 132 are connected and enclosed to form an air inlet duct 133; the impeller 12 is disposed on the air inlet duct 133; the fixed end of the motor 11 is fitted into the side of the fixing component 132 facing the air inlet component 131; a second shock absorber 22 is sandwiched between the fixed end of the motor 11 and the fixing component 132. The second shock absorber 22 is provided to absorb vibration between the motor 11 and the fixing component 132 and to avoid hard contact between the motor 11 and the fixing component 132, thereby reducing the propagation of vibration in the thickness direction of the air inlet shroud 13 and achieving a third layer of noise interception.

[0048] In some embodiments, the motor 11 includes a housing 114; in the radial direction of the motor 11, the housing 114 has at least two symmetrically arranged mounting notches 1141; a second damping member 22 is embedded in the mounting notch 1141 so that a fastener 15 passes through the second damping member 22 and is connected to the fixing member 132. Preferably, the motor 11 has four equally spaced mounting notches 1141 in the circumferential direction, and a second damping member 22 is embedded in each mounting notch 1141, so that the housing 114 of the motor 11 is detachably connected to the fixing member 132 by the fastener 15 and the second damping member 22, wherein the fastener 15 is a bolt. When the fastener 15 passes through the second damping member 22 and is connected to the fixing member 132, the fastener 15 and the fixing member 132 will respectively abut against the second damping member 22 in the axial direction.

[0049] In some embodiments, the second damping member 22 includes a damping body 221 and a damping pad 222; a damping pad 222 is respectively provided at both ends of the damping body 221 in the axial direction, and the outer diameter of the damping pad 222 is larger than that of the damping body 221. Preferably, the damping pad 222 has an annular structure, which is disposed around the circumferential sidewall of the damping body 221 and integrally formed with the damping body 221. The damping body 221 is provided to play a damping role in the radial direction of the motor 11, while the damping pad 222 plays a damping role in the axial direction of the motor 11, reducing the propagation of vibration and avoiding hard contact between the fixing member 132 and the housing 114 of the motor 11.

[0050] In some embodiments, at least one third damping member 23 is sandwiched between the air inlet shroud 13 and the rear shell 14 to absorb vibration in the thickness direction of the air inlet shroud 13 and prevent hard contact between the air inlet shroud 13 and the rear shell 14. Preferably, a third damping member 23 is provided at each corner of the rear shell 14, so that a gap is formed between the rear shell 14 and the air inlet shroud 13, thereby achieving a fourth layer of noise interception.

[0051] In some embodiments, a connecting post 134 is provided on the side of the air inlet shroud 13 facing the rear shell 14, and a connecting seat 141 corresponding to the connecting post 134 is provided on the rear shell 14; the connecting post 134 passes through the third damping member 23 and connects to the connecting seat 141, so as to absorb the vibration between the air inlet shroud 13 and the rear shell 14 in the thickness direction of the air inlet shroud 13, avoid direct contact between the air inlet shroud 13 and the rear shell 14, and reduce the generation of noise.

[0052] Embodiment 1 of this utility model is as follows:

[0053] An air purifier includes an air intake device 1 and a shock-absorbing structure 2. The shock-absorbing structure 2 of the air intake device 1 includes a motor 11, a fan 12, an air intake shroud 13, and a rear shell 14. The motor 11 is drivenly connected to the fan 12, and both the motor 11 and the fan 12 are disposed within the air intake shroud 13. The rear shell 14 is disposed on the side of the air intake shroud 13 away from the air intake side. The shock-absorbing structure 2 includes shock-absorbing components. Shock-absorbing components are provided at least at one location: the connection between the motor 11 and the fan 12, the connection between the air intake shroud 13 and the rear shell 14, and between the motor 11 and the air intake shroud 13. The shock-absorbing components are made of rubber. The shock-absorbing components include a first shock-absorbing component 21, a second shock-absorbing component 22, a third shock-absorbing component 23, and a shock-absorbing rotor 112.

[0054] In this embodiment, the motor 11 includes a rotating shaft 111, a shock-absorbing rotor 112, and a stator 113; one end of the rotating shaft 111 is connected to the wind turbine 12 for transmission, and the shock-absorbing rotor 112 is sandwiched between the stator 113 and the other end of the rotating shaft 111.

[0055] In this embodiment, a first shock absorber 21 is sandwiched between one end of the rotating shaft 111 and the wind turbine 12, and the first shock absorber 21 is sleeved on one end of the rotating shaft 111.

[0056] In this embodiment, the air inlet cover 13 includes an air inlet component 131 and a fixing component 132; the air inlet component 131 and the fixing component 132 are connected and enclosed to form an air inlet duct 133; the impeller 12 is disposed on the air inlet duct 133; the fixed end of the motor 11 is fitted into the side of the fixing component 132 facing the air inlet component 131; a second shock absorber 22 is sandwiched between the fixed end of the motor 11 and the fixing component 132.

[0057] In this embodiment, the motor 11 further includes a housing 114; in the radial direction of the motor 11, the housing 114 has four equally spaced mounting notches 1141; each mounting notch 1141 is embedded with a second shock absorber 22, so that the housing 114 of the motor 11 is detachably connected to the fixing member 132 by fasteners 15 and the second shock absorber 22. The fasteners 15 are bolts.

[0058] In this embodiment, the second damping component 22 includes a damping body 221 and a damping pad 222; a damping pad 222 is respectively provided at both ends of the damping body 221 in the axial direction, and the outer diameter of the damping pad 222 is larger than that of the damping body 221. Preferably, the damping pad 222 has a ring structure, which is arranged around the circumferential sidewall of the damping body 221 and integrally formed with the damping body 221.

[0059] In this embodiment, a third shock absorber 23 is provided at each of the four corners of the rear shell 14, so that a gap is formed between the rear shell 14 and the air inlet shroud 13.

[0060] In this embodiment, a connecting post 134 is provided on the side of the air inlet shroud 13 facing the rear shell 14, and a connecting seat 141 corresponding to the connecting post 134 is provided on the rear shell 14; the connecting post 134 passes through the third shock absorber 23 and is connected to the connecting seat 141.

[0061] The working principle of this utility model is as follows:

[0062] By installing a shock-absorbing rotor 112 inside the motor 11, the vibration generated during the operation of the motor 11 is reduced, thus achieving the first level of noise interception;

[0063] A first damping component 21 is provided at the connection position between the rotating shaft 111 and the wind turbine 12 to achieve a second layer of noise interception in the radial direction of the rotating shaft 111;

[0064] A second shock absorber 22 is provided between the motor 11 and the fixing member 132 of the air inlet shroud 13 to achieve a third layer of noise interception in the thickness direction of the air inlet shroud 13.

[0065] A third shock absorber 23 is provided between the air inlet shroud 13 and the rear shell 14 to achieve a fourth layer of interception in the thickness direction of the air inlet shroud 13.

[0066] The vibration of the motor 11 is absorbed from multiple directions and points, reducing the noise generated during the operation of the air purifier.

[0067] In summary, the shock-absorbing structure of the air intake device and the air purifier provided by this utility model reduce the propagation of vibration from multiple directions by setting corresponding shock-absorbing components at multiple contact points in the air intake device of the air purifier, and avoid hard contact between parts, thereby reducing noise generation from the source.

[0068] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A vibration damping structure for an air intake device, the air intake device comprising a motor, a fan, an air intake shroud, and a rear shell, wherein the motor is drivenly connected to the fan, both the motor and the fan are disposed within the air intake shroud, and the rear shell is disposed on the side of the air intake shroud away from the air intake side, characterized in that, The damping structure includes damping components; The shock absorber is provided at least one of the following locations: the connection between the motor and the impeller, the connection between the air inlet shroud and the rear shell, and between the motor and the air inlet shroud. The shock absorber is a structural component with elastic deformation capability.

2. The air intake device shock absorbing structure according to claim 1, wherein The motor includes a rotating shaft, a shock-absorbing rotor, and a stator; One end of the rotating shaft is connected to the wind turbine drive, and the shock-absorbing rotor is sandwiched between the stator and the other end of the rotating shaft.

3. The air intake device shock absorbing structure according to claim 2, wherein A first shock absorber is sandwiched between one end of the rotating shaft and the wind turbine, and the first shock absorber is sleeved outside the one end of the rotating shaft.

4. The air intake device shock absorbing structure according to claim 1, wherein The air inlet shroud includes an air inlet component and a fixing component; The air inlet component is connected to the fixing component and together they form an air inlet duct. The wind turbine is mounted on the air inlet duct; The fixed end of the motor is fitted into the side of the fixing member facing the air inlet member; A second shock absorber is sandwiched between the fixed end of the motor and the fixing member.

5. The air intake device shock absorbing structure according to claim 4, wherein The motor includes a housing; In the radial direction of the motor, the housing has at least two symmetrically arranged mounting notches; The second shock absorber is embedded in the mounting notch so that the fastener passes through the second shock absorber and connects to the fixing member.

6. The air intake device shock absorbing structure according to claim 4, wherein The second shock absorber includes a shock absorber body and a shock absorber pad; The shock-absorbing body has a shock-absorbing pad at each of its two axial ends, and the outer diameter of the shock-absorbing pad is larger than that of the shock-absorbing body.

7. The air intake device shock absorbing structure according to claim 1, wherein At least one third shock absorber is sandwiched between the air intake shroud and the rear shell.

8. The air intake device shock absorbing structure according to claim 7, wherein A connecting post is provided on the side of the air inlet hood facing the rear shell, and a connecting seat corresponding to the connecting post is provided on the rear shell; The connecting column passes through the third shock absorber and connects to the connecting seat.

9. The air intake device shock absorbing structure according to claim 7, wherein At least one of the third shock absorbers is provided at each corner of the rear shell, so that a gap is formed between the rear shell and the air inlet shroud.

10. An air cleaner characterized by comprising: Includes the shock-absorbing structure as described in any one of claims 1 to 9.

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