CN114669396A - High-voltage electrostatic air purification device - Google Patents
High-voltage electrostatic air purification device Download PDFInfo
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- CN114669396A CN114669396A CN202210330536.4A CN202210330536A CN114669396A CN 114669396 A CN114669396 A CN 114669396A CN 202210330536 A CN202210330536 A CN 202210330536A CN 114669396 A CN114669396 A CN 114669396A
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- ionization part
- ionization
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- electrostatic air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/32—Transportable units, e.g. for cleaning room air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Electrostatic Separation (AREA)
Abstract
The embodiment of the application provides a high-voltage electrostatic air purification device, belongs to air purification technical field, includes: the device comprises a shell and at least one group of purification components arranged in the shell; the shell is provided with an air inlet and an air outlet; the purification assembly comprises an ionization part and a plurality of adsorption parts, the ionization part is arranged in the position, close to the air inlet, in the shell, the adsorption parts are arranged in the position, close to the air outlet, in the shell, the ionization part and the adsorption parts are both plate bodies, and the ionization part is made of hafnium or hafnium alloy; the ionization part is connected with the positive pole of the high-voltage pulse power supply, and the adsorption parts are connected with the negative pole of the high-voltage pulse power supply. Through the high-voltage electrostatic air purification device that this application embodiment provided, can improve ion amount of wind and ventilation efficiency, the dust collection efficiency that disinfects when reducing the production ozone.
Description
Technical Field
The embodiment of the application relates to the technical field of air purification, in particular to a high-voltage electrostatic air purification device.
Background
The principle of the electrostatic air purifier is that an ionization device generates charged ions through corona discharge, the charged ions move rapidly in a strong electric field formed by high voltage and collide with particulate matters of air to ionize the particulate matters to generate a large amount of ion flows to form ion wind, and then the ion wind is adsorbed by a dust collecting plate to remove the particulate matters in the air, so that the effects of sterilization and air purification are achieved. The method can also be used for desulfurization and denitrification, municipal waste treatment and reduction of automobile exhaust emission. Its advantages are collecting micro particles (0.01-0.10 microns), high dust collecting and sterilizing efficiency, no need of auxiliary fan and filter net, low noise and energy consumption, and long service life.
At present, the electrostatic air purifier adopts tungsten filaments as ionizing materials, but in the operation process, the tungsten filaments can generate a large amount of ozone when ionizing air, so that the tungsten filaments can cause harm to human bodies and the surrounding environment. And the tungsten filament is adopted as an ionization material, and the problems of small ion air volume and low ventilation efficiency are also caused.
Disclosure of Invention
The embodiment of the application provides a high-voltage electrostatic air purification device, and aims to reduce ozone generation and improve ion air volume and ventilation efficiency.
The embodiment of the application provides a high voltage electrostatic air purification device, includes:
the device comprises a shell and at least one group of purification components arranged in the shell;
the shell is provided with an air inlet and an air outlet;
the purification assembly comprises an ionization part and a plurality of adsorption parts, the ionization part is arranged in the position, close to the air inlet, in the shell, the adsorption parts are arranged in the position, close to the air outlet, in the shell, the ionization part and the adsorption parts are both plate bodies, and the ionization part is made of hafnium or hafnium alloy;
the ionization part is connected with the positive pole of the high-voltage pulse power supply, and the adsorption parts are connected with the negative pole of the high-voltage pulse power supply.
Optionally, the plurality of adsorption parts are uniformly arranged at intervals in the arc direction with the ionization part as the center.
Optionally, the distance between the ionization part and the adsorption part is 10mm-500 mm.
Optionally, the plate surface directions of the ionization part and the adsorption parts are parallel to a first direction; wherein the first direction is an air flow direction within the housing.
Optionally, the thickness of the edges at both sides of the ionization part in the length direction is smaller than the thickness of the middle part of the ionization part.
Optionally, an edge of at least one side in the length direction of the ionization part is provided in a wedge shape or a circular arc shape.
Optionally, the plate body of the ionization part has a thickness of 0.01-1.0 mm.
Optionally, a metal wire is connected to both ends of the ionization part in the length direction.
Optionally, the material of the wire comprises at least one or more of hafnium, tungsten, tantalum, molybdenum or niobium.
Optionally, the purification device further comprises a control module, the control module is electrically connected with the high-voltage pulse power supply, and the control module is used for controlling the high-voltage pulse power supply to be turned on or turned off.
Has the advantages that:
the application provides a high-voltage electrostatic air purification device, which is characterized in that a shell and a purification assembly in the shell are arranged, a high-voltage pulse power supply is arranged, an ionization part of the purification assembly is connected with a positive electrode of the high-voltage pulse power supply, an adsorption part is connected with a negative electrode of the high-voltage pulse power supply, and particles in air can be ionized through a high-voltage pulse electric field in the process that the air flows from an air inlet to an air outlet of the shell; the ionization part is made of hafnium or hafnium alloy, and the electron work function of hafnium is low, so that corona discharge can be effectively generated at a lower voltage, air ionization is reduced, and ozone generation is avoided. Simultaneously, ionization portion and absorption portion are the plate body, have higher intensity, can not damage easily because of high-pressure environment, consequently make purifier have longer life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a housing of a high-voltage electrostatic air purification apparatus according to an embodiment of the present application;
fig. 2 is a schematic cross-sectional structure diagram of a high-voltage electrostatic air purification device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a cleaning assembly of a high-voltage electrostatic air cleaning device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an ionization part of a high-voltage electrostatic air purification device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an ionization part of another high-voltage electrostatic air purification device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an ionization part of another high-voltage electrostatic air purification device according to an embodiment of the present application;
fig. 7 is a schematic cross-sectional structure view of an ionization part of another high-voltage electrostatic air purification device according to an embodiment of the present application.
Description of reference numerals: 1. a housing; 11. an air inlet; 12. an air outlet; 2. a purification assembly; 21. an ionization section; 22. an adsorption part; 3. a wire.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and 2, a high-voltage electrostatic air purification device disclosed in an embodiment of the present application includes a housing 1 and at least one set of purification assemblies 2 disposed in the housing 1.
Specifically, referring to fig. 2, the housing 1 has an air inlet 11 and an air outlet 12, the positions of the air inlet 11 and the air outlet 12 correspond to each other, when the purifying device is used, air enters the housing 1 from the air inlet 11 and flows out from the air outlet 12, and the purifying assembly 2 is disposed between the air inlet 11 and the air outlet 12. The air inlet 11 and the air outlet 12 may be in a grid shape, or may be in other shapes, which is not limited herein.
Referring to fig. 2, the purification assembly 2 includes an ionization part 21 and a plurality of adsorption parts 22, the ionization part 21 is disposed in the housing 1 near the air inlet 11, the plurality of adsorption parts 22 are disposed in the housing 1 near the air outlet 12, and a certain distance is provided between the ionization part 21 and the adsorption parts 22; meanwhile, the purification device further comprises a high-voltage pulse power supply (not shown in the figure), the ionization part 21 is connected with the positive pole of the high-voltage pulse power supply, and the adsorption parts 22 are connected with the negative pole of the high-voltage pulse power supply, so that after the high-voltage pulse power supply is started, an electric field is formed between the ionization part 21 and each adsorption part 22.
At this time, the ionization part 21 serves as an ionization electrode, each adsorption part 22 serves as a dust collecting electrode, and during the process that the air passes through the purification assembly 2, the ionization part 21 generates corona discharge to ionize the particles in the air, and the adsorption part 22 adsorbs the ionized particles, thereby achieving the effect of purifying the air.
Referring to fig. 3, the ionization part 21 and the adsorption part 22 are both provided as plate bodies having a certain thickness, the ionization part 21 is made of hafnium or a hafnium alloy, and the adsorption part 22 is made of a metal material such as stainless steel, aluminum, or titanium. When the ionization part 21 selects hafnium, the purity of the hafnium is not lower than 97%; when the ionization part 21 is made of a hafnium alloy, the hafnium alloy may include any one or more of the following elements in percentage by mass: ta is less than 20%, Mo is less than 20%, Nb is less than 20%, W is less than 10%, and Zr is less than 10%; the balance of Hf and other inevitable impurity elements, the content of Hf is more than or equal to 80%, the sum of the inevitable impurity elements is less than 0.1%, and the alloy of high-melting-point metals Ta, Mo, Nb, W and hafnium has excellent oxidation resistance and can further prolong the service life of the purification device.
Thus, because the electron work function of hafnium is low, corona discharge can be effectively generated at a lower voltage, reducing air ionization, and thus avoiding ozone generation. And utilize hafnium or hafnium alloy material's ionization portion 21 to come as the ionization electrode, the wire material can be greatly increased to corona discharge area ratio, and then can improve the ionization efficiency of particulate matter, and then improve ion amount of wind and intensity to improve the ventilation efficiency of purifier in unit interval, make purifier's dust removal sterilization efficiency improve. Meanwhile, the ionization part 21 and the adsorption part 22 are plate bodies, have high strength, and cannot be easily damaged due to a high-pressure environment, so that the purification device has a longer service life.
In specific application, a plurality of groups of purification components 2 can be arranged in the purification device.
In one embodiment, in order to ensure the field intensity generated between the ionization part 21 and each adsorption part 22 is uniform, the adsorption parts 22 are uniformly spaced in the arc direction with the ionization part 21 as the center.
Specifically, referring to fig. 2 and 3, the plurality of adsorption portions 22 are uniformly arranged on an arc line with a radius R by taking one side edge of the ionization portion 21 as a center of a circle, so that the distance between the ionization portion 21 and each adsorption portion 22 can be ensured to be equal, and the field intensity generated between the ionization portion 21 and each adsorption portion 22 is the same, thereby being more beneficial to ionizing particles in the air.
In a specific application, the size of R may be 10mm to 500mm, that is, the distance between the ionization part 21 and the adsorption part 22 may be 10mm to 500 mm.
In one embodiment, referring to fig. 2, the plate surface directions of the ionization part 21 and the plurality of adsorption parts 22 are parallel to the first direction.
Specifically, the first direction is an air flow direction inside the housing 1, i.e., a direction in which air flows from the air inlet 11 to the air outlet 12 of the housing 1. The plate surface directions of the ionization part 21 and the adsorption part 22 are parallel to the first direction, so that the ionization part 21 and the adsorption part 22 can be prevented from blocking the air flow, and the air volume of the purification device is increased.
In one embodiment, the thickness of the two side edges of the ionization part 21 in the length direction is smaller than the thickness of the middle part of the ionization part 21.
Specifically, because the plate surface direction of the ionization part 21 is parallel to the air flowing direction, one side of the ionization part 21 facing the air inlet 11 is the long side of the ionization part 21, so that the thickness of two long side parts of the ionization part 21 is smaller than that of the middle part of the ionization part 21, the cross section of the ionization part 21 is streamline, and therefore, the ionization efficiency of particulate matters is improved.
Meanwhile, in order to further improve the ionization efficiency, at least one side edge of the ionization part 21 in the length direction may be set to be wedge-shaped or arc-shaped, that is, as shown in fig. 4, one side edge of the ionization part 21 may be set to be wedge-shaped or arc-shaped and faces the air inlet 11 of the housing 1; referring to fig. 5 and 6, both side edges of the ionization section 21 may be formed in a wedge shape or a circular arc shape (in fig. 4 to 7, the X direction indicates the longitudinal direction of the ionization section 21, and the Y direction indicates the width direction of the ionization section 21).
In one embodiment, referring to fig. 7, the two ends of the ionization part 21 in the length direction are connected with metal wires 3, the diameter of the metal wires 3 is greater than 0.5mm, and the metal wires 3 can be selected from hafnium, tungsten, tantalum, molybdenum or niobium; when the ionization part 21 is connected, the ionization part 21 can be connected with a high-voltage pulse power supply through a metal wire, so that the discharge effect of the edge of the ionization part 21 can be reduced through the arrangement of the metal wire 3, and the service life of the purification device is prolonged.
In one embodiment, in order to clean the particles adsorbed by the purification device, the ionization part 21 and the adsorption parts 22 are detachably connected to the housing 1.
Specifically, a plurality of connecting plates may be provided in the housing 1, the connecting plates may be fixedly connected to the corresponding ionization part 21 or adsorption part 22 by bolts, and when detaching, the ionization part 21 or adsorption part 22 may be detached for cleaning by only unscrewing the bolts.
In one embodiment, the purification device may further include a control module, the control module is electrically connected to the high-voltage pulse power supply, the control module may control the high-voltage pulse power supply to be turned on or off, the control module may also control an operation time of the high-voltage pulse power supply, and the like.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It should also be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Moreover, relational terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions or should not be construed as indicating or implying relative importance. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.
The technical solutions provided by the present application are described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understanding the present application, and the content of the present description should not be construed as limiting the present application. While various modifications of the illustrative embodiments and applications will be apparent to those skilled in the art based upon this disclosure, it is not necessary or necessary to exhaustively enumerate all embodiments, and all obvious variations and modifications can be resorted to, falling within the scope of the disclosure.
Claims (10)
1. A high-voltage electrostatic air purification device, comprising:
the device comprises a shell and at least one group of purification components arranged in the shell;
the shell is provided with an air inlet and an air outlet;
the purification assembly comprises an ionization part and a plurality of adsorption parts, the ionization part is arranged in the position, close to the air inlet, in the shell, the adsorption parts are arranged in the position, close to the air outlet, in the shell, the ionization part and the adsorption parts are both plate bodies, and the ionization part is made of hafnium or hafnium alloy;
the ionization part is connected with the positive pole of the high-voltage pulse power supply, and the adsorption parts are connected with the negative pole of the high-voltage pulse power supply.
2. The high voltage electrostatic air cleaning apparatus of claim 1, wherein:
the adsorption parts are uniformly arranged at intervals in the arc direction by taking the ionization part as a circle center.
3. The high voltage electrostatic air cleaning apparatus of claim 2, wherein:
the distance between the ionization part and the adsorption part is 10-500 mm.
4. The high-voltage electrostatic air cleaning apparatus according to claim 1, wherein:
the plate surface directions of the ionization part and the adsorption parts are parallel to a first direction; wherein the first direction is an air flow direction within the housing.
5. The high voltage electrostatic air cleaning apparatus of claim 1, wherein:
the thickness of the ionization part plate body is 0.01-1.0 mm.
6. The high voltage electrostatic air cleaning apparatus of claim 1, wherein:
the thickness of the edges at two sides of the ionization part in the length direction is smaller than that of the middle part of the ionization part.
7. The high voltage electrostatic air cleaning apparatus of claim 6, wherein:
the edge of at least one side of the ionization part in the length direction is set to be wedge-shaped or arc-shaped.
8. The high voltage electrostatic air cleaning apparatus of claim 1, wherein:
and two ends of the ionization part in the length direction are connected with metal wires.
9. The high voltage electrostatic air cleaning apparatus of claim 8, wherein:
the material of the metal wire comprises: hafnium, tungsten, tantalum, molybdenum or niobium.
10. The high-voltage electrostatic air cleaning apparatus according to any one of claims 1 to 9, wherein:
the purification device further comprises a control module, the control module is electrically connected with the high-voltage pulse power supply, and the control module is used for controlling the high-voltage pulse power supply to be turned on or turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210330536.4A CN114669396A (en) | 2022-03-31 | 2022-03-31 | High-voltage electrostatic air purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210330536.4A CN114669396A (en) | 2022-03-31 | 2022-03-31 | High-voltage electrostatic air purification device |
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| Publication Number | Publication Date |
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| CN114669396A true CN114669396A (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210330536.4A Pending CN114669396A (en) | 2022-03-31 | 2022-03-31 | High-voltage electrostatic air purification device |
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Citations (8)
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| CN1047893A (en) * | 1989-04-19 | 1990-12-19 | 陶氏化学公司 | The electrode structure of electrolytic cell |
| JP2002361117A (en) * | 2001-06-09 | 2002-12-17 | Ayumi Iijima | Electric precipitator |
| JP2004203201A (en) * | 2002-12-25 | 2004-07-22 | Mitsubishi Motors Corp | Electric air cleaner for automobile |
| CN103604176A (en) * | 2013-10-29 | 2014-02-26 | 北京工业大学 | Carbon fiber dust collecting electrode plate type static air cleaning device |
| CN108131738A (en) * | 2017-12-20 | 2018-06-08 | 中国船舶重工集团公司第七八研究所 | A kind of needle based on pulsed discharge-net formula ion ventilating purification apparatus |
| CN209147300U (en) * | 2018-09-26 | 2019-07-23 | 苏州太阳雪新能源科技有限公司 | A kind of Combined air purifier |
| CN210545701U (en) * | 2019-07-23 | 2020-05-19 | 阳庆莉 | High-efficient ion wind air purifier |
| CN213161319U (en) * | 2020-04-21 | 2021-05-11 | 东莞伍联电子科技有限公司 | Air freshener |
-
2022
- 2022-03-31 CN CN202210330536.4A patent/CN114669396A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047893A (en) * | 1989-04-19 | 1990-12-19 | 陶氏化学公司 | The electrode structure of electrolytic cell |
| JP2002361117A (en) * | 2001-06-09 | 2002-12-17 | Ayumi Iijima | Electric precipitator |
| JP2004203201A (en) * | 2002-12-25 | 2004-07-22 | Mitsubishi Motors Corp | Electric air cleaner for automobile |
| CN103604176A (en) * | 2013-10-29 | 2014-02-26 | 北京工业大学 | Carbon fiber dust collecting electrode plate type static air cleaning device |
| CN108131738A (en) * | 2017-12-20 | 2018-06-08 | 中国船舶重工集团公司第七八研究所 | A kind of needle based on pulsed discharge-net formula ion ventilating purification apparatus |
| CN209147300U (en) * | 2018-09-26 | 2019-07-23 | 苏州太阳雪新能源科技有限公司 | A kind of Combined air purifier |
| CN210545701U (en) * | 2019-07-23 | 2020-05-19 | 阳庆莉 | High-efficient ion wind air purifier |
| CN213161319U (en) * | 2020-04-21 | 2021-05-11 | 东莞伍联电子科技有限公司 | Air freshener |
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