Ionic wind air purifier with low-noise structure

Abstract

The invention discloses an ionic wind air purifier with a low-noise structure, and relates to the technical field of air purification equipment. The air purifier comprises a shell, an air inlet pipe is installed in the shell, a supporting frame is arranged on one side of the air inlet pipe, and a filter element is arranged on one side of the supporting frame; a noise reduction assembly is arranged in the shell. A remarkable mute effect is achieved through multiple noise reduction design, high-frequency squeal and broadband noise of 10-20 kHz can be effectively absorbed through sound absorption cotton made of a melamine foam material in the noise reduction assembly, corona discharge noise is reduced by 3-5 dB through the design of a passivation needle tip electrode, airflow resonance is avoided due to the fact that electrode plates are arranged in a spiral array mode, and the noise reduction effect is good. Turbulence noise is reduced through the divergent air outlet pipe structure, the filter element is stably fixed through the fixing assembly through the gear and toothed plate linkage mechanism, the overall operation noise of the purifier is lowered compared with that of a traditional product, and the air purifier is particularly suitable for being used in bedrooms, studies and other places needing quiet environments.

Description

Technical Field

[0001] This invention belongs to the technical field of air purification equipment, and in particular relates to an ion wind air purifier with a low-noise structure. Background Technology

[0002] An ion wind air purifier is a new type of air purification device. It primarily uses high-voltage discharge to ionize the air, generating a large number of positively and negatively charged ions. These ions actively capture particulate matter such as dust, pollen, and smoke in the air, causing them to agglomerate into larger particles that then settle to the ground or are captured by a collection device. Simultaneously, some ion wind air purifiers can also destroy the structure of bacteria, viruses, and other microorganisms, thus playing a role in sterilization and disinfection. This purifier does not require a traditional fan, operates quietly, consumes low energy, and can effectively improve indoor air quality to a certain extent, creating a healthier breathing environment for people.

[0003] Current air purifiers generate significant noise during use. The noise of ion air purifiers mainly comes from the high-frequency whistling (10-20kHz) during corona discharge and the broadband noise generated by the collision of air molecules during ionization. Traditional needle-plate electrode structures cause large airflow disturbances, and when the filter element is disassembled, if it bumps against the housing, the surface dust is easily shaken off, requiring secondary cleaning.

[0004] To address these issues, we offer a low-noise ion wind air purifier. Summary of the Invention

[0005] The purpose of this invention is to provide an ion wind air purifier with a low-noise structure. By combining noise reduction components, fixing components and dust prevention components, it solves the problem that existing air purifiers generate a lot of noise during use, and that when the filter element is disassembled, if it bumps against the housing, the surface dust is easily shaken off, requiring secondary cleaning.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0007] This invention relates to a low-noise ion air purifier, comprising a housing, an air inlet pipe installed inside the housing, a support frame on one side of the air inlet pipe, and a filter element on one side of the support frame; a noise reduction component is installed inside the housing, comprising sound-absorbing cotton installed inside the housing, an electrode plate installed inside the housing, electrode needles installed on the surface of the electrode plate, and an air outlet pipe connected to the top of the housing, thereby reducing noise transmission; a fixing component is installed inside the housing, comprising a retaining ring installed inside the housing, a rotating shaft movably connected inside the support frame, and a buckle installed on the surface of the rotating shaft, thereby fixing the filter element; a dustproof component is installed inside the housing, comprising a base installed at the bottom of the support frame, a material rod movably connected inside the base, a protective cover installed on the surface of the material rod, and a hanging rod installed on the other side of the protective cover, thereby shielding dust that falls off the filter element during removal.

[0008] The invention is further configured such that the sound-absorbing cotton is made of melamine foam material, with a thickness of 5-10 mm and a density of 8-12 kg / m³. 3 It can absorb broadband noise. The electrode needle adopts a passivated needle tip electrode with a curvature radius ≥0.2mm, which reduces corona discharge noise by 3-5dB. The electrode plate array is arranged in a spiral to avoid airflow resonance. The air outlet duct adopts a gradually expanding flow guiding structure to reduce turbulence noise.

[0009] The present invention is further configured such that the fixing component also includes a gear mounted on the surface of the rotating shaft, a toothed plate meshing with one side of the gear, and a limiting plate mounted on one side of the toothed plate.

[0010] The invention is further configured such that a guide rail plate is slidably connected to one side of the toothed plate, and one side of the guide rail plate is fixedly connected to the support frame.

[0011] The present invention is further configured such that a support shaft is fixedly connected to both sides of the base, a fixing seat is sleeved on the surface of the support shaft, and one side of the fixing seat is fixedly connected to the shell.

[0012] The invention is further configured such that the dustproof assembly includes a support tube sleeved on the surface of the rotating shaft and a hook installed on the top of the support tube.

[0013] The present invention is further configured such that a coil spring is fixedly connected to the surface of the material rod, and the other end of the coil spring is fixedly connected to the inner wall of the base.

[0014] The invention is further configured such that the other side of the protective cover extends to the outside of the base, and one side of the base has an arc-shaped design.

[0015] The present invention is further configured such that a fixed cover is installed on the top of the air outlet pipe, and a guide plate is fixedly connected to the top of the fixed cover.

[0016] The present invention is further configured such that an adsorption plate is provided on one side of the electrode plate, and a ventilation pipe is provided on the other side of the adsorption plate.

[0017] The present invention has the following beneficial effects.

[0018] 1. This invention achieves a significant noise reduction effect through multiple noise reduction designs. The melamine foam sound-absorbing cotton used in the noise reduction components can effectively absorb high-frequency howling and broadband noise of 10-20kHz. The passivated needle tip electrode design reduces corona discharge noise by 3-5dB. The electrode plates adopt a spiral array arrangement to avoid airflow resonance. The gradually expanding air outlet duct structure reduces turbulence noise. The fixing component achieves stable fixing of the filter core through a gear and tooth plate linkage mechanism, making the overall operating noise of the purifier lower than that of traditional products. It is especially suitable for use in bedrooms, studies and other places that require a quiet environment.

[0019] 2. This invention solves the problem of dust scattering during filter removal by using a dustproof component. The protective cover can automatically unfold to cover the side of the filter that absorbs dust through a material rod and a coil spring mechanism. The hanging rod and hook work together to fix the position of the protective cover. The base adopts an arc-shaped design, which, together with the support shaft and the fixed seat, forms a stable rotational support structure, making the filter removal process smooth and stable. This design avoids dust falling off due to vibration when replacing the filter in traditional air purifiers, reduces secondary pollution, and greatly reduces the workload of maintenance and cleaning.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0022] Figure 1 This is a 3D diagram of an ion wind air purifier with a low-noise structure.

[0023] Figure 2 This is an exploded view of the internal structure of the support frame in an ion wind air purifier with a low-noise design.

[0024] Figure 3 This is a schematic diagram showing the connection between the shell and the support frame in an ion wind air purifier with a low-noise structure.

[0025] Figure 4 This is a schematic diagram of the surface structure of the rotating shaft in an ion wind air purifier with a low-noise structure.

[0026] Figure 5 This is a schematic diagram of the bottom structure of the support frame in an ion wind air purifier with a low-noise structure.

[0027] Figure 6 This is a partial cross-sectional view of the base of an ion wind air purifier with a low-noise structure.

[0028] Figure 7 This is a schematic diagram of the internal structure of the casing in an ion wind air purifier with a low-noise design.

[0029] Figure 8 This is a cross-sectional view of the air outlet duct and guide plate in an ion wind air purifier with a low-noise structure.

[0030] Figure 9 This is a schematic diagram of the electrode needle structure in an ion wind air purifier with a low-noise design.

[0031] In the attached diagram: 1. Shell; 2. Air inlet duct; 3. Support frame; 4. Filter element; 5. Noise reduction component; 501. Sound-absorbing cotton; 502. Electrode plate; 503. Electrode needle; 504. Air outlet duct; 6. Fixing component; 601. Snap ring; 602. Rotating shaft; 603. Buckle; 7. Dustproof component; 701. Base; 702. Material rod; 703. Protective cover; 704. Hanging rod; 604. Gear; 605. Tooth plate; 606. Limiting plate; 8. Guide rail plate; 9. Support shaft; 10. Fixing seat; 705. Support tube; 706. Hook; 11. Coil spring; 12. Fixing cover; 13. Guide plate; 14. Adsorption plate; 15. Ventilation duct. Detailed Implementation

[0032] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Example 1 Please see Figures 1-9This invention relates to a low-noise ion air purifier, comprising a housing 1, an air inlet pipe 2 installed inside the housing 1, a support frame 3 on one side of the air inlet pipe 2, and a filter element 4 on one side of the support frame 3; a noise reduction component 5 is installed inside the housing 1, comprising sound-absorbing cotton 501 installed inside the housing 1, an electrode plate 502 installed inside the housing 1, electrode needles 503 installed on the surface of the electrode plate 502, and an air outlet pipe 504 connected to the top of the housing 1, thereby reducing noise transmission through the noise reduction component 5; and a fixing component 6 is installed inside the housing 1. Component 6 includes a retaining ring 601 installed inside the housing 1, a rotating shaft 602 movably connected inside the support frame 3, and a buckle 603 installed on the surface of the rotating shaft 602. The filter element 4 is fixed by the fixing component 6. A dustproof component 7 is provided inside the housing 1. The dustproof component 7 includes a base 701 installed at the bottom of the support frame 3, a material rod 702 movably connected inside the base 701, a protective cover 703 installed on the surface of the material rod 702, and a hanging rod 704 installed on the other side of the protective cover 703. The dustproof component 7 protects the filter element 4 from dust that falls off during disassembly.

[0034] Specifically: The electrode plates and electrode needles work together to generate ions. When these ions move in the electric field, they collide with neutral air molecules, causing them to move together and forming an ion wind circulation system. The support frame 3 is located on one side of the air inlet duct 2 to support and position the filter element 4, ensuring precise alignment between the filter assembly and the air duct. The sound-absorbing cotton 501 is made of melamine foam with a thickness of 5-10mm and a density of 8-12kg / m3. This special material can effectively absorb broadband noise, especially the high-frequency whistling unique to ion wind purifiers. The electrode plates 502 are arranged in a spiral array, which avoids airflow resonance and significantly reduces turbulent noise. The electrode needles 503 are passivated. The needle-tip electrode has a curvature radius ≥0.2mm. This passivation treatment makes the corona discharge more stable and can reduce the corona discharge noise by 3-5dB. The air outlet duct 504 adopts a gradually expanding flow guide structure. Through the gradually expanding pipe diameter design, the airflow speed is effectively reduced and the generation of turbulence noise is reduced. The retaining ring 601 is installed inside the housing 1 and cooperates with the buckle 603 on the rotating shaft 602 to form a reliable mechanical locking mechanism. The rotating shaft 602 is movably connected inside the support frame 3. The filter element 4 is quickly locked and unlocked through rotation. The buckle 603 is installed on the surface of the rotating shaft 602 and forms an interlocking structure with the retaining ring 601 to ensure the stability of the filter element 4 in the working state.

[0035] Example 2 Please see Figures 1-9 Based on Example 1, the sound-absorbing cotton 501 is made of melamine foam material with a thickness of 5-10mm and a density of 8-12kg / m³. 3It can absorb broadband noise. The electrode needle 503 adopts a passivated needle tip electrode with a curvature radius ≥0.2mm, which reduces corona discharge noise by 3-5dB. The electrode plate 502 array is arranged in a spiral to avoid airflow resonance. The air outlet duct 504 adopts a gradually expanding flow guiding structure to reduce turbulence noise. The fixing component 6 also includes a gear 604 installed on the surface of the rotating shaft 602, a toothed plate 605 meshing with one side of the gear 604, a limiting plate 606 installed on one side of the toothed plate 605, a guide rail plate 8 slidably connected to one side of the toothed plate 605, and a fixed connection between one side of the guide rail plate 8 and the support frame 3. The base 701 is fixedly connected to both sides of the support shaft 9. A fixing seat 10 is sleeved on the surface of the support shaft 9, and one side of the fixing seat 10 is fixedly connected to the housing 1.

[0036] Specifically: the electrode material is 316L stainless steel; gear 604 is mounted on the surface of rotating shaft 602, converting rotational motion into linear motion; toothed plate 605 meshes with gear 604 to achieve motion conversion; limiting plate 606 is mounted on one side of toothed plate 605, providing additional limiting protection after filter element 4 is installed in place; guide rail plate 8 is fixedly connected to support frame 3 on one side and slidably connected to toothed plate 605 on the other side, providing precise guidance for the movement of toothed plate 605 and ensuring that limiting plate 606 can accurately reach the predetermined position; base 701 is mounted on the bottom of support frame 3, providing an installation base for dustproof mechanism; material rod 702 is movably connected inside base 701 and is the telescopic drive component of protective cover 703; protective cover 703 is mounted on the surface of material rod 702 and automatically unfolds when filter element 4 is disassembled to prevent dust from scattering; hanging rod 704 is mounted on the other side of protective cover 703 to fix the position of protective cover 703 after unfolding.

[0037] Example 3 Please see Figures 1-9 Based on Embodiments 1 and 2, the dustproof assembly 7 further includes a support tube 705 sleeved on the surface of the rotating shaft 602, a hook 706 installed on the top of the support tube 705, a coil spring 11 fixedly connected to the surface of the material rod 702, the other end of the coil spring 11 fixedly connected to the inner wall of the base 701, the other side of the protective cover 703 extending through to the outside of the base 701, one side of the base 701 having an arc-shaped design, a fixing cover 12 installed on the top of the air outlet 504, a guide plate 13 fixedly connected to the top of the fixing cover 12, an adsorption plate 14 provided on one side of the electrode plate 502, and a ventilation pipe 15 provided on the other side of the adsorption plate 14.

[0038] Specifically: the support tube 705 is sleeved on the surface of the rotating shaft 602 to provide support for the hook 706. The hook 706 is installed on the top of the support tube 705 to fix the hanging rod 704 and keep the protective cover 703 in the unfolded state. The support shaft 9 is fixed on both sides of the base 701 and cooperates with the fixing seat 10 to form the rotation fulcrum of the support frame 3. The fixing seat 10 is sleeved on the surface of the support shaft 9 and fixedly connected to the housing 1 on one side to provide stable rotation support for the support frame 3. One end of the coil spring 11 is fixed to the surface of the material rod 702 and the other end is fixed to the inner wall of the base 701 to provide the elastic force for automatic retraction of the protective cover 703. The adsorption plate 14 is set on one side of the electrode plate 502 to capture charged particles. The ventilation pipe 15 is set on the other side of the adsorption plate 14 to ensure uniform airflow distribution and improve purification efficiency. The special passivation design of the electrode needle 503 not only reduces corona discharge noise but also extends the service life of the electrode. The spiral array arrangement of the electrode plate 502 optimizes the airflow distribution in the ionization area and avoids the airflow disturbance and noise amplification effect caused by the traditional parallel arrangement.

[0039] The working principle of this invention is as follows: Air flows through the filter core 4 for primary filtration, and then the air enters the ionization zone. The high-voltage electric field generated by the electrode plate 502 array causes corona discharge at the tip of the electrode needle 503, generating a large number of positive and negative ions. These ions charge the particles in the air, which are then captured by the adsorption plate 14. The charged ions are accelerated by the counter electrode and collide with more neutral air molecules during migration, thereby generating air movement, i.e., ion wind. The ion wind generated by the ionization and movement of air under the high-voltage electric field does not require traditional aerodynamic devices such as fans, so the energy consumption (usually a few watts to tens of watts) is low and the noise (slight discharge hissing sound) is low. The noise reduction component 5 plays a continuous role throughout the process, the sound-absorbing cotton 501 absorbs high-frequency noise, the spiral electrode plate 502 avoids airflow resonance, and the gradually expanding air outlet duct 504 reduces turbulence.

[0040] During filter element 4 installation, first insert filter element 4 into support frame 3. Then move support frame 3 and filter element 4. As support frame 3 moves, it drives support shaft 9 to insert into fixed seat 10, limiting the bottom of support frame 3. Then, push support frame 3 backward around support shaft 9 to make filter element 4 fit against air inlet pipe 2. Figure 3 and Figure 4 As shown, the rotating shaft 602 is then rotated clockwise. The rotating shaft 602 drives the buckle 603 to insert into the surface of the retaining ring 601, fixing the support frame 3 and the housing 1. While the rotating shaft 602 is rotating, it drives the gear 604 to rotate. The gear 604, in conjunction with the toothed plate 605, drives the limiting plate 606 to move. When the limiting plate 606 moves downward, it blocks the filter element 4, thereby fixing the filter element 4 and using the filter element 4 to filter the incoming air.

[0041] When it is necessary to disassemble the filter element 4, pull the hanging rod 704 to move it. When the hanging rod 704 moves, it pulls the protective cover 703 out of the base 701. Then, move the hanging rod 704 upward, and the hanging rod 704 pulls the protective cover 703 to cover the surface of the filter element 4. Then, hang the hanging rod 704 into the hook 706 to fix the protective cover 703. Use the protective cover 703 to cover the side of the filter element 4 that absorbs dust. Then, rotate the rotating shaft 602 counterclockwise. The rotating shaft 602 drives the buckle 603 to disengage from the retaining ring 601. At the same time, it drives the limiting plate 606 to move upward, releasing the fixation of the filter element 4. Then, pull the support frame 3 upward. The support frame 3 drives the support shaft 9 to disengage from the fixing seat 10, completing the quick disassembly of the support frame 3. When the operator moves the support frame 3, the side of the protective cover 703 covering the filter element 4 can face downward. During the movement, the falling dust can be collected to prevent dust from falling into the working environment and improve the convenience of use.

[0042] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A low-noise ion wind air purifier, comprising a housing (1), characterized in that: An air inlet pipe (2) is installed inside the housing (1), a support frame (3) is provided on one side of the air inlet pipe (2), and a filter element (4) is provided on one side of the support frame (3). The housing (1) is provided with a noise reduction component (5), which includes sound-absorbing cotton (501) installed inside the housing (1), an electrode plate (502) installed inside the housing (1), an electrode needle (503) installed on the surface of the electrode plate (502), and an air outlet pipe (504) connected to the top of the housing (1). The noise reduction component (5) reduces the transmission of noise. The housing (1) is provided with a fixing component (6), which includes a retaining ring (601) installed inside the housing (1), a rotating shaft (602) movably connected inside the support frame (3), and a buckle (603) installed on the surface of the rotating shaft (602). The filter element (4) is fixed by the fixing component (6). The housing (1) is provided with a dustproof component (7). The dustproof component (7) includes a base (701) installed at the bottom of the support frame (3), a material rod (702) movably connected inside the base (701), a protective cover (703) installed on the surface of the material rod (702), and a hanging rod (704) installed on the other side of the protective cover (703). The dustproof component (7) is used to cover the dust that falls off the filter element (4) after disassembly.

2. The low-noise ion air purifier according to claim 1, characterized in that: The sound-absorbing cotton (501) is made of melamine foam, with a thickness of 5-10mm and a density of 8-12kg / m³. 3 It can absorb broadband noise. The electrode needle (503) adopts a passivated needle tip electrode with a curvature radius ≥0.2mm, which reduces corona discharge noise by 3-5dB. The electrode plate (502) array is arranged in a spiral to avoid airflow resonance. The air outlet pipe (504) adopts a gradually expanding flow guiding structure to reduce turbulence noise.

3. The low-noise ion air purifier according to claim 1, characterized in that: The fixing component (6) also includes a gear (604) mounted on the surface of the rotating shaft (602), a toothed plate (605) meshing with one side of the gear (604), and a limiting plate (606) mounted on one side of the toothed plate (605).

4. The low-noise ion wind air purifier according to claim 3, characterized in that: The toothed plate (605) is slidably connected to a guide rail plate (8) on one side, and the guide rail plate (8) is fixedly connected to the support frame (3) on one side.

5. The low-noise ion wind air purifier according to claim 1, characterized in that: The base (701) is fixedly connected to both sides of the support shaft (9), and a fixed seat (10) is sleeved on the surface of the support shaft (9). One side of the fixed seat (10) is fixedly connected to the shell (1).

6. The low-noise ion air purifier according to claim 1, characterized in that: The dustproof assembly (7) also includes a support tube (705) sleeved on the surface of the rotating shaft (602) and a hook (706) installed on the top of the support tube (705).

7. The low-noise ion wind air purifier according to claim 1, characterized in that: A coil spring (11) is fixedly connected to the surface of the feed rod (702), and the other end of the coil spring (11) is fixedly connected to the inner wall of the base (701).

8. The low-noise ion wind air purifier according to claim 1, characterized in that: The protective cover (703) extends through the other side to the outside of the base (701), and one side of the base (701) has an arc-shaped design.

9. The low-noise ion wind air purifier according to claim 1, characterized in that: The top of the air outlet pipe (504) is fitted with a fixed cover (12), and a guide plate (13) is fixedly connected to the top of the fixed cover (12).

10. The low-noise ion wind air purifier according to claim 1, characterized in that: An adsorption plate (14) is provided on one side of the electrode plate (502), and a ventilation pipe (15) is provided on the other side of the adsorption plate (14).

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