Air purifier capable of emitting agilawood flavor to purify air

Abstract

The invention discloses an air purifier capable of emitting agilawood flavor to purify air, and relates to the technical field of air purification, the air purifier comprises an air purification structure composed of a convenient filtering mechanism and a final-stage filter element, the maintenance frequency of each filter element can be reduced, and the convenience in use is improved; the air duct variable-volume cylinder and the final filter element located on the upper portion can finely filter air filtered for the first time in the composite filter unit again to release clean air, then the aroma of agilawood essential oil is released through the agilawood essential oil releaser, the aroma and the clean air are evenly mixed through external swirling airflow of the draught fan, and the air purification effect is achieved. The active ingredients of the agilawood essential oil are uniformly diffused into the purified air, so that a high-quality air environment is constructed; the antibacterial characteristic of natural agilawood is coupled with the air purification process, the problem that the air purification assembly and the aromatherapy assembly lack collaborative air purification is solved, agilawood essential oil molecules synchronously cover peculiar smell and inhibit bacteria breeding of a filter element, and multi-dimensional optimization of purification efficiency, sensory experience and convenient use is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, and in particular to an air purifier for emitting agarwood scent and purifying air. Background Art

[0002] With the increasing environmental pollution and the improvement of health awareness, air purifiers have become an important device in modern life. Existing technologies generally use physical filtration, electrostatic adsorption or photocatalytic oxidation, such as HEPA (high efficiency filter) to remove pollutants such as particulate matter and formaldehyde. However, existing solutions still have the following significant defects:

[0003] First, traditional purification technology has limited effect on odor and volatile organic compounds. Although activated carbon filters can absorb some odors, they are easily saturated and cannot decompose harmful gases, so the filter element needs to be replaced frequently. Although photocatalytic technology can degrade pollutants, it may produce secondary pollution such as ozone.

[0004] What is more prominent is that long-term use in a closed space can easily create a feeling of stuffiness, and because air purifiers cannot absorb all odors in the filtered air, existing air purification equipment only focuses on the "purification" function and lacks improvement in the sensory quality of the air. Users need to purchase additional aromatherapy machines to cover up residual odors, resulting in equipment redundancy and increased energy consumption.

[0005] Secondly, there is a technical gap between the existing air purifier and the fragrance module. Some products try to add chemical fragrance volatilization devices, but artificial synthetic fragrances may cause respiratory irritation, and the concentration of fragrance release is uncontrollable, which can easily cause olfactory fatigue. In addition, chemical fragrances can only temporarily cover up odors and cannot cooperate with the purification process to eliminate the root cause of odors. In the existing technology, it is proposed to improve air quality through atomized fragrances, but its fragrance ingredients have no synergistic effect with the purification system, and may increase the burden on the filter element.

[0006] Furthermore, the traditional purification equipment has a significant problem of single function; most of the products on the market focus on basic functions such as filtration and sterilization, ignoring the diversified needs of users for a healthy environment. Studies have shown that the linalool and furan compounds contained in natural agarwood volatiles not only have antibacterial properties, but can also regulate the nervous system and relieve anxiety through aromatic odors; however, existing technologies have not effectively utilized the composite value of such natural materials, resulting in a gap in the health added value of air purification equipment.

[0007] Finally, the maintenance cost of air purification equipment and the user experience are in sharp conflict; the multi-layer filter structure leads to high replacement costs in the later stage, and products with integrated aromatherapy modules often require independent maintenance of the fragrance carrier, which increases the complexity of use. For example, in the prior art, there are air purifiers that have a mismatch between the aromatherapy box and the filter life, which requires users to frequently disassemble and clean them, greatly reducing the practicality of air purification equipment with fragrance function.

[0008] In summary, it is found that the prior art has at least the following technical problems:

[0009] Existing air purification equipment has a technical problem that the air purification component and the aromatherapy component lack the function of cooperating to purify the air, and the technical separation of the two components leads to frequent maintenance and inconvenience in the use of the air purifier. Summary of the invention

[0010] The purpose of the present invention is to provide an air purifier that emits the scent of agarwood to purify the air, so as to solve the technical problems of existing air purification equipment, that the air purification component and the aromatherapy component lack the function of collaboratively purifying the air, and the technical separation of the two components leads to frequent maintenance and inconvenience in use of the air purifier.

[0011] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0012] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0013] The present invention provides an air purifier that emits the scent of agarwood and purifies the air, comprising a lower shell, wherein a reusable and antibacterial convenient filtering mechanism is installed in the lower shell; the convenient filtering mechanism is provided with a filter element lifting unit and a composite filter unit that are coaxially arranged with the shell, and the outer ring and inner ring interfaces at the bottom end of the composite filter unit are sealed and connected with the base of the filter element lifting unit; the lower shell is provided with an openable and closable lower maintenance door at a position corresponding to the composite filter unit; and an upper shell, the bottom of the upper shell is provided with an air duct pipe that is connected with the interior, the air duct pipe is inserted from top to bottom into the inner ring interface at the top end of the composite filter unit and is sealed and connected, and the bottom of the upper shell is sealed and connected with the outer ring interface at the top end of the composite filter unit; and an air duct variable volume cylinder that is arranged in the upper shell and is sealed and connected with the air outlet of the air duct pipe, and a There is a square final filter chamber, on which a filter element insertion port is provided, and an upper maintenance door that can be opened and closed is provided on the upper shell at a position corresponding to the filter element insertion port; and a final filter element horizontally inserted into the final filter chamber through the filter element insertion port, which is used to filter and absorb pollutants and odors in the air entering the air inlet end of the air duct variable volume cylinder; and a fan installed at the air outlet end of the air duct variable volume cylinder; and an agarwood essential oil releaser arranged around the outer ring of the fan, the agarwood essential oil releaser has a heating function and is provided with an essential oil filling port for repeated use and release of agarwood fragrance; and a touch screen and a power supply electronic control unit, the touch screen is arranged above the upper maintenance door, and the essential oil filling port is arranged on one side of the touch screen; the power supply electronic control unit is arranged outside the air duct variable volume cylinder, and is used to receive instructions from the touch screen to control the fan and the agarwood essential oil releaser.

[0014] In one embodiment, the composite filter unit includes a washable and reusable metal filter cartridge and a wood fiber primary filter cartridge; the outer ring of the primary filter cartridge is also provided with a sponge filter sleeve; the metal filter cartridge is used to filter air pollutants with a diameter greater than 40 μm; the primary filter cartridge is used to filter air pollutants with a diameter greater than 3 μm.

[0015] In one embodiment, the outer surface of the metal filter cylinder is provided with a silver ion coating to inhibit bacteria generated by accumulation of dust woven fabric contaminants on the outer surface of the metal filter cylinder.

[0016] In one embodiment, the final filter element is composed of a cotton filter layer provided with activated carbon and silver ions and a HEPA filter layer with a filtration grade of H12-H14; the HEPA filter layer of the final filter element faces the air inlet end of the air duct variable volume cylinder, and the cotton filter layer faces the air outlet end of the air duct variable volume cylinder.

[0017] In one of the embodiments, the filter element lifting unit includes a dust collecting plate and a lifting spring; a first boss and a second boss for positioning the lifting spring are respectively provided inside the bottom of the lower shell and the bottom of the dust collecting plate, and the two ends of the lifting spring are respectively fitted on the outside of the first boss and the second boss; a coaxially arranged first filter fixing ring and a primary filter element fixing ring are provided on the top of the dust collecting plate, and the primary filter element fixing ring is provided inside the first filter fixing ring; a second filter fixing ring is provided at the bottom of the upper shell, and the second filter fixing ring is sleeved on the outside of the air duct pipe; the two ends of the metal filter cylinder are respectively sleeved on the outside of the first filter fixing ring and the second filter fixing ring in a detachable sealing manner; the two ends of the primary filter element cylinder are respectively sleeved on the primary filter element fixing ring and the outside of the air duct pipe in a detachable sealing manner.

[0018] In one of the embodiments, a first air quality sensor unit is provided between the lower shell and the metal filter cylinder, for detecting the air quality of the current environment and transmitting data to the power supply electronic control unit; a second air quality sensor unit is provided between the metal filter cylinder and the primary filter cartridge, for detecting the air quality after being filtered by the metal filter cartridge, and transmitting data to the power supply electronic control unit; a third air quality sensor unit is provided at the air inlet end of the air duct variable volume cylinder, for detecting the air quality after being filtered by the primary filter cartridge, and transmitting data to the power supply electronic control unit; a fourth air quality sensor unit is provided at the air outlet end of the air duct variable volume cylinder, for detecting the air quality after being filtered by the final filter cartridge, and transmitting data to the power supply electronic control unit; a fifth air quality sensor unit is provided above the agarwood essential oil releaser, for detecting the air quality above the agarwood essential oil releaser and at the final outlet, and transmitting data to the power supply electronic control unit.

[0019] In one embodiment, the air inlet end and the air outlet end of the air duct variable volume cylinder are both tubular, and the final filter chamber is cubic; the diameter of the air outlet end of the air duct variable volume cylinder is smaller than the diameter of the air inlet duct of the fan, the diameter of the air inlet end of the air duct variable volume cylinder is smaller than the diameter of the air outlet end of the air duct variable volume cylinder, and the diameter of the air duct pipe is smaller than the diameter of the air inlet end of the air duct variable volume cylinder, which is used to gradually increase the air inlet speed of the final filter element and the composite filter unit from top to bottom.

[0020] In one embodiment, the agarwood essential oil releaser includes an oil tank for loading agarwood essential oil, a cotton column attraction rod, a heating plate, and volatile cotton for distributing agarwood essential oil; an outwardly extending oil pipe is provided on the side of the oil tank, and the essential oil filling port is provided at the end of the oil pipe and fixed to the upper shell; a support tube connected to the inside of the oil tank is installed on the top of the oil tank, and the cotton column attraction rod is inserted into the support tube; one end of the support tube is inserted into the oil tank, and the other end of the support tube is connected to the heating plate, and a ceramic insulation sleeve is provided between the support tube and the heating plate; an oil hole corresponding to the cotton column attraction rod is provided at the bottom of the heating plate, and the volatile cotton is placed in the heating plate, and the volatile cotton contacts the cotton column attraction rod to conduct the agarwood essential oil in the oil tank to the heating plate; a heating patch is provided at the bottom of the heating plate, and the heating patch is arranged between the two support tubes; the heating patch is electrically connected to the power supply electronic control unit.

[0021] In one of the embodiments, a temperature sensor electrically connected to the power supply electronic control unit is provided at the top of the oil tank, between the oil tank and the heating plate, and a probe of the temperature sensor extends into the volatile cotton through the side of the heating plate to measure the temperature information of the volatile cotton.

[0022] In one of the embodiments, the lower outer shell and the lower maintenance door are both provided with through air inlet holes; a detachable air outlet cover is installed on the top of the upper outer shell, and an air outlet net is provided on the air outlet cover.

[0023] The beneficial effects of the present invention are as follows:

[0024] (1) The air purification structure and the aroma released by the agarwood essential oil releaser work together to improve the quality of air purification: by integrating the agarwood essential oil releaser above the fan, that is, at the end of the air duct, the clean air purified by the composite filter unit and the final filter element and the natural agarwood aroma released by the agarwood essential oil releaser are diffused synchronously, achieving the dual effects of odor adsorption and aroma regulation.

[0025] Among them, the active ingredients in agarwood volatiles can decompose residual organic pollutants, forming a complete purification chain of odor collaborative purification with the final filter element, avoiding the problem of mutual interference between the aromatherapy module and purification components in traditional air purification equipment.

[0026] (2) Modular filtration structure enables convenient maintenance: The split housing design and the openable and closable lower and upper maintenance doors enable independent maintenance operations such as filter element cleaning and filter element replacement for the composite filter unit and final filter element.

[0027] Among them, the composite filter unit supports vertical extraction through the filter element lifting unit after opening the lower maintenance door; it avoids the difficulty of disassembly caused by the overlapping of multiple layers of filters in traditional air purification equipment, improves maintenance efficiency and convenience, and makes the replacement of filter element consumables faster and dust cleaning more convenient.

[0028] (3) Intelligent fragrance control and energy efficiency optimization: The fragrance release concentration of the agarwood essential oil releaser is adjusted through the touch screen. After receiving the command, the power electronic control unit controls the built-in heating function of the agarwood essential oil releaser, adjusts the heating power and heating time, and finally adjusts the speed of fragrance release by controlling the heating temperature, thereby controlling the concentration of fragrance release. Combined with the linkage control of the fan air volume, it is ensured that the fragrance is evenly diffused and there is no problem of excessive local concentration. Compared with the combination of an independent aromatherapy device and an independent traditional air purification device, the air purifier of the present invention that emits the fragrance of agarwood and purifies the air has lower comprehensive energy consumption, which reduces the energy consumption of users using the air purification and fragrance functions. In addition, the agarwood essential oil releaser uses natural fragrance substances to release natural fragrance, and can also avoid the use of chemical fragrances in traditional aromatherapy equipment, which leads to unstable volatilization and difficulty in controlling uniform fragrance concentration.

[0029] (4) Natural antibacterial and health benefits: The agarwood essential oil releaser uses agarwood essential oil made from natural aroma substances. During the heating process, it not only releases natural aroma, but also contains natural antibacterial molecules with broad-spectrum antibacterial properties. During the process of circulating and purifying the air in the air purifier, the previously released natural antibacterial molecules will be re-absorbed into the composite filter unit and the final filter element, which can inhibit the growth of microorganisms on the surface of the filter element, reduce odor generation, and extend the service life of the filter element. At the same time, the agarwood aromatic molecules act on the human parasympathetic nerves through the respiratory tract, achieving the dual health value of air purification and user psychological relief, thereby enhancing the added value of the air purifier in purifying the air.

[0030] (5) The air purifier has a higher air volume and wind speed: The square final filter cavity structure in the air duct variable volume cylinder allows the air duct variable volume cylinder to accommodate the total filter element. At the same time, the cavity capacity of the final filter cavity at both ends and in the middle of the air duct variable volume cylinder can be changed. When the fan makes the wind move forward in the air duct, the wind speed is changed, and the wind speed attenuation rate in the air duct filter structure composed of the composite filter unit and the final filter element is reduced, thereby improving the air speed and air volume. In conjunction with the inner and outer double-layer sealing interfaces of the composite filter unit, the air is sealed in the first stage of purification, and enters the next stage of purification structure with a higher air volume, thereby maintaining the purification efficiency of the final filter element.

[0031] (6) Uniform aroma: The fan is installed at the outlet end of the air duct variable volume cylinder, at the end of the air duct filtering structure, and the agarwood essential oil releaser arranged around the outer ring of the fan is installed on the air outlet side of the fan, so that under the stable rotation of the fan, it can drive a sufficient amount of purified air with a uniform wind field to drive the aroma released by the agarwood essential oil releaser, so that the purified air and the aroma are evenly mixed, and the purified air and the aroma are kept evenly discharged at the air outlet end of the air purifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 is a front view structural schematic diagram of the air purifier of the present invention;

[0034] Figure 2 It is a schematic diagram of the test axonometric structure of the air purifier of the present invention;

[0035] Figure 3 is a schematic cross-sectional view of the air purifier of the present invention;

[0036] Figure 4 yes Figure 3 A partial enlarged view of part A;

[0037] Figure 5 It is a schematic diagram of the top view of the structure of the air purifier of the present invention;

[0038] Figure 6 yes Figure 5 Partial cross-sectional view of the BB part.

[0039] The reference numerals are as follows:

[0040] 1. Lower housing; 11. Lower maintenance door; 12. Air inlet; 13. First boss;

[0041] 2. Convenient filtering mechanism; 21. Filter element lifting unit; 22. Dust collecting plate; 221. Second boss; 222. First filter screen fixing ring; 223. Primary filter element fixing ring; 23. Lifting spring; 24. Composite filtering unit; 241. Metal filter screen cylinder; 242. Primary filter element cylinder; 243. Sponge filter sleeve;

[0042] 3. Upper shell; 31. Air duct; 32. Second filter fixing ring; 33. Upper maintenance door; 34. Air outlet cover; 341. Air outlet net;

[0043] 4. Air duct variable volume cylinder; 41. Final filter chamber; 411. Filter element insertion port; 412. Inlet rail;

[0044] 5. Final filter element; 51. Guide rail groove; 52. Sealing ring;

[0045] 6. Fan;

[0046] 7. Agarwood essential oil releaser; 71. Oil tank; 711. Oil pipe; 712. Essential oil filling port; 72. Support tube; 721. Cotton column suction rod; 722. Ceramic insulation sleeve; 73. Heating plate; 731. Oil hole; 732. Positioning hook; 74. Volatile cotton; 75. Heating patch;

[0047] 8. Touch screen;

[0048] 9. Power supply electronic control unit; 91. Charging interface. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0050] In a specific embodiment, an air purifier that emits the scent of agarwood and purifies the air is provided. The device includes an air purification structure composed of a convenient filtering mechanism and a final filter element, which can reduce the maintenance frequency of each filter element and improve the maintenance compatibility between the filter element and the agarwood essential oil releaser, thereby improving the convenience of use; and the filter element lifting unit included in the convenient filtering mechanism located at the bottom can make the composite filter unit liftable, disassembled and installed, and quickly complete the operation of separating the composite filter unit from the air duct pipe of the lower shell and the upper shell, greatly improving the convenience of filter element maintenance; the air duct variable volume cylinder and the final filter element located at the upper part can finely filter the air that was initially filtered in the composite filter unit again to release clean air. , and then release the aroma of agarwood essential oil through the agarwood essential oil releaser, and combine the outward rotating airflow of the fan to mix the aroma with the clean air evenly, so that the active ingredients of agarwood essential oil are evenly diffused into the purified air, building a high-quality air environment; and the antibacterial properties of natural agarwood are coupled with the air purification process. Through the circulation and purification of air, the aroma molecules and antibacterial molecules released by the agarwood essential oil simultaneously cover up the odor and inhibit the growth of bacteria in the filter element, thereby achieving multi-dimensional optimization of purification efficiency, sensory experience and convenient use; it effectively solves the technical problems of existing air purification equipment, that is, the air purification component and the aromatherapy component lack the function of collaborative air purification, and the technical separation of the two components leads to frequent maintenance and inconvenience in use of the air purifier.

[0051] The first implementation of an air purifier is Figures 1 to 3As shown, it includes a lower shell 1, in which a reusable and antibacterial convenient filtering mechanism 2 is installed; the convenient filtering mechanism 2 is provided with a filter element lifting unit 21 and a composite filtering unit 24 coaxially arranged with the shell, and the outer ring and inner ring interfaces at the bottom of the composite filtering unit 24 are sealed and connected with the base of the filter element lifting unit 21; the lower shell 1 is provided with an openable and closable lower maintenance door 11 at a position corresponding to the composite filtering unit 24; and an upper shell 3, the bottom of the upper shell 3 is provided with an air duct pipe 31 connected to the interior, the air duct pipe 31 is inserted from top to bottom into the inner ring interface of the top end of the composite filtering unit 24 and is sealed, and the bottom of the upper shell 3 is sealed with the outer ring interface of the top end of the composite filtering unit 24; and an air duct variable volume cylinder 4 arranged in the upper shell 3 and sealedly connected to the air outlet of the air duct pipe 31, a square final filter cavity 41 is provided between the two ends of the air duct variable volume cylinder 4, and the final filter cavity 41 is provided between the two ends of the air duct variable volume cylinder 4. The secondary filter chamber 41 is provided with a filter element insertion port 411, and an upper maintenance door 33 that can be opened and closed is provided on the upper shell 3 at a position corresponding to the filter element insertion port 411; and a final filter element 5 horizontally inserted into the final filter chamber through the filter element insertion port 411, used to filter and absorb pollutants and odors in the air entering the air inlet end of the air duct variable volume cylinder 4; and a fan 6 installed at the air outlet end of the air duct variable volume cylinder 4; and an agarwood essence arranged around the outer ring of the fan 6. An oil releaser 7, wherein the agarwood essential oil releaser 7 has a heating function and is provided with an essential oil filling port 712 for repeated use and releasing the agarwood aroma; and a touch screen 8 and a power electronic control unit 9, wherein the touch screen 8 is arranged above the upper maintenance door 33, and the essential oil filling port 712 is arranged on one side of the touch screen 8; the power electronic control unit 9 is arranged outside the air duct variable volume cylinder 4, and is used to receive instructions from the touch screen 8 to control the fan 6 and the agarwood essential oil releaser 7.

[0052] Among them, the final filter element 5 is installed in the final filter cavity 41 in a detachable sealing manner, and a sealing ring 52 is arranged on the inner wall of the final filter cavity 41 or on the surrounding sides of the final filter element 5; guide rail grooves 51 are arranged on the opposite side walls of the final filter element 5, and an introduction rail 412 is arranged on the inner wall of the final filter cavity 41 corresponding to the guide rail groove 51, which provides positioning and introduction when the user replaces the final filter element, and makes the sealing ring 52 abut against the inner wall of the final filter cavity 41 and the surrounding sides of the final filter element 5 to form a seal.

[0053] The charging interface 91 of the power supply and electronic control unit 9 is arranged on the upper housing 3 .

[0054] Regarding the structure of the composite filter unit that is reusable and antibacterial, this embodiment Figure 3As shown, the composite filter unit 24 includes a washable and reusable metal filter cartridge 241 and a wood fiber primary filter cartridge 242; the outer ring of the primary filter cartridge 242 is also provided with a sponge filter sleeve 243; the metal filter cartridge 241 is used to filter air pollutants with a diameter greater than 40 μm; the primary filter cartridge 242 is used to filter air pollutants with a diameter greater than 3 μm.

[0055] The outer surface of the metal filter cylinder 241 is provided with a silver ion coating to inhibit bacteria generated by the accumulation of dust woven fabric pollutants on the outer surface of the metal filter cylinder 241 .

[0056] Regarding the structure of the above-mentioned final filter element filtering and absorbing the incoming air and odor, such as Figure 3 and Figure 4 As shown, the final filter element 5 is composed of a cotton filter layer provided with activated carbon and silver ions and a HEPA filter layer with a filtration grade of H12-H14. The HEPA filter layer of the final filter element 5 faces the air inlet end of the air duct variable volume cylinder 4, and the cotton filter layer faces the air outlet end of the air duct variable volume cylinder 4.

[0057] When used, the HEPA filter layer is used to filter air pollutant particles with a diameter of at least greater than 0.3 μm, and absorb odors in the air through the cotton filter layer.

[0058] Through multiple filtering structures, air duct structures and agarwood essential oil releasers, the air purifier can achieve the following under the drive of the fan: (1) The air purification structure and the aroma released by the agarwood essential oil releaser work together to improve the air purification quality: by integrating the agarwood essential oil releaser 7 on the fan 6, that is, at the end of the air duct, the clean air purified by the composite filter unit 24 and the final filter element 5 and the natural agarwood aroma released by the agarwood essential oil releaser 7 are diffused synchronously, achieving the dual effects of odor adsorption and aroma regulation.

[0059] Among them, the active ingredients in the agarwood volatiles can decompose residual organic pollutants, forming a complete purification chain for coordinated odor purification with the final filter element 5, avoiding the problem of mutual interference between the aromatherapy module and the purification components in traditional air purification equipment.

[0060] (2) Modular filtration structure enables convenient maintenance: The split housing design and the openable and closable lower maintenance door 11 and upper maintenance door 33 structure enable the composite filter unit 24 and the final filter element 5 to independently perform maintenance operations such as filter element cleaning and filter element replacement.

[0061] Among them, the composite filter unit 24 supports vertical extraction through the filter element lifting unit 21 after opening the lower maintenance door 11; it avoids the difficulty of disassembly caused by the overlapping of multiple layers of filters in traditional air purification equipment, improves maintenance efficiency and convenience, and makes the replacement of filter element consumables faster and dust cleaning more convenient.

[0062] Regarding the specific structure for controlling the temperature of the heating plate and controlling the aroma concentration released by the agarwood essential oil releaser, a temperature sensor electrically connected to the power supply electronic control unit 9 is provided at the top of the oil tank 71 between the oil tank 71 and the heating plate 73, and the probe of the temperature sensor extends into the volatile cotton 74 through the side of the heating plate 73 to measure the temperature information of the volatile cotton 74.

[0063] When in use, the temperature sensor is used to measure the temperature information of the volatile cotton 74 and feed it back to the power supply electronic control unit 9, so that the heating temperature of the agarwood essential oil releaser 7 is displayed on the touch screen 8, forming a closed-loop control of the heating time of the heating patch 75 and adjusting the heating power, completing the temperature adjustment of the heating plate 73, thereby flexibly adjusting the aroma concentration released by the agarwood essential oil releaser 7.

[0064] (3) Intelligent fragrance control and energy efficiency optimization: The fragrance release concentration of the agarwood essential oil releaser 7 is adjusted through the touch screen 8. After receiving the command, the power electronic control unit 9 controls the built-in heating function of the agarwood essential oil releaser 7, adjusts the heating power and heating time, and finally adjusts the speed of fragrance release by controlling the heating temperature, thereby controlling the concentration of fragrance release. Combined with the linkage control of the air volume of the fan 6, it is ensured that the fragrance is evenly diffused and there is no problem of excessive local concentration. Compared with the combination of an independent aromatherapy device and an independent traditional air purification device, the air purifier of the present invention that emits the fragrance of agarwood and purifies the air has lower comprehensive energy consumption, which reduces the energy consumption of users using the air purification and fragrance functions. In addition, the agarwood essential oil releaser 7 uses natural fragrance substances to release natural fragrance, which can also avoid the use of chemical fragrances in traditional aromatherapy equipment, resulting in unstable volatilization and difficulty in controlling uniform fragrance concentration.

[0065] (4) Natural antibacterial and health benefits: The agarwood essential oil releaser 7 uses agarwood essential oil made of natural aroma substances. During the heating process, it not only releases natural aroma, but also contains natural antibacterial ingredients with broad-spectrum antibacterial properties. During the process of circulating and purifying the air in the air purifier, the previously released natural antibacterial ingredients will be re-absorbed into the composite filter unit 24 and the final filter element 5, which can inhibit the growth of microorganisms on the surface of the filter element, reduce odor generation, and extend the service life of the filter element; at the same time, the agarwood aromatic molecules act on the human parasympathetic nerves through the respiratory tract, achieving the dual health value of air purification and user psychological relief, and enhancing the value-added effect of the air purifier on air purification.

[0066] (5) The air purifier has a higher air volume and wind speed: the square final filter chamber 41 structure in the air duct variable volume cylinder 4 allows the air duct variable volume cylinder 4 to accommodate the total filter element. At the same time, the cavity capacity of the final filter chamber 41 at both ends and in the middle of the air duct variable volume cylinder 4 can be changed. When the fan 6 makes the wind move forward in the air duct, the wind speed is changed, and the wind speed attenuation rate in the air duct filter structure composed of the composite filter unit 24 and the final filter element 5 is reduced, thereby improving the air speed and air volume. In conjunction with the inner and outer double-layer sealing interfaces of the composite filter unit 24, the air is sealed in the first stage of purification, and enters the next stage of purification structure with a higher air volume, thereby maintaining the purification efficiency of the final filter element 5.

[0067] (6) Uniform aroma: The fan 6 is installed at the outlet end of the air duct variable volume cylinder 4, at the end of the air duct filtering structure, and the agarwood essential oil releaser 7 arranged around the outer ring of the fan 6 is installed on the outlet side of the fan 6, so that under the stable rotation of the fan 6, it can drive a sufficient amount of purified air with a uniform wind field to drive the aroma released by the agarwood essential oil releaser 7, so that the purified air and the aroma are evenly mixed, and the purified air and the aroma are kept evenly discharged at the outlet end of the air purifier.

[0068] As one optional implementation,

[0069] Regarding the structure of the filter element lifting unit, this embodiment is as follows: Figure 3 As shown, the filter element lifting unit 21 includes a dust collecting tray 22 and a lifting spring 23; the bottom of the lower housing 1 and the bottom of the dust collecting tray 22 are respectively provided with a first boss 13 and a second boss 221 for positioning the lifting spring 23, and the two ends of the lifting spring 23 are respectively fitted on the outside of the first boss 13 and the second boss 221; the top of the dust collecting tray 22 is provided with a coaxially arranged first filter screen fixing ring 222 and a primary filter element fixing ring 223, and the primary filter element The fixing ring 223 is arranged inside the first filter fixing ring 222; a second filter fixing ring 32 is arranged at the bottom of the upper outer shell 3, and the second filter fixing ring 32 is sleeved on the outside of the air duct pipe 31; the two ends of the metal filter cylinder 241 are respectively sleeved on the outside of the first filter fixing ring 222 and the second filter fixing ring 32 in a detachable sealing manner; the two ends of the primary filter element cylinder 242 are respectively sleeved on the outside of the primary filter element fixing ring 223 and the air duct pipe 31 in a detachable sealing manner.

[0070] When in use, the dust collecting tray 22 is used to collect air pollutants filtered by the metal filter cylinder 241 and the primary filter cartridge 242; after opening the lower maintenance door 11, the dust collecting tray 22 is pressed, and the metal filter cylinder 241 and the primary filter cartridge 242 are lowered and separated from the second filter fixing ring 32 and the air duct tube 31 by the lifting spring 23, so that the dust collecting tray 22, the metal filter cylinder 241 and the primary filter cartridge 242 are taken out for cleaning and filter replacement.

[0071] Regarding the sensing structure for step-by-step monitoring of the air quality passing through the metal filter cylinder, the primary filter element cylinder, the final filter element, and the agarwood essential oil releaser, a first air quality sensor unit is arranged between the lower outer shell 1 and the metal filter cylinder 241, which is used to detect the air quality of the current environment and transmit data to the power supply electronic control unit 9.

[0072] When in use, the first air quality sensor is arranged adjacent to the inner side of the lower shell 1, and the first air quality sensor unit is electrically connected to the power supply electronic control unit 9 for detecting the air quality of the current environment and displaying the ambient air quality on the touch screen 8 by transmitting data to the power supply electronic control unit 9.

[0073] A second air quality sensor unit is provided between the metal filter cylinder 241 and the primary filter cartridge 242 for detecting the quality of air filtered by the metal filter cylinder 241 and transmitting data to the power supply electronic control unit 9 .

[0074] When in use, the second air quality sensor unit is electrically connected to the power supply electronic control unit 9, and is used to detect the quality of air filtered by the metal filter cylinder 241, and record air quality change data and filtering time by transmitting data to the power supply electronic control unit 9; and display the remaining usage time of the metal filter cylinder 241 on the touch screen 8, so as to prompt the user to clean the metal filter cylinder 241 in time.

[0075] A third air quality sensor unit is provided at the air inlet end of the air duct variable volume cylinder 4, for detecting the quality of air filtered by the primary filter cartridge 242, and transmitting data to the power supply electronic control unit 9;

[0076] When in use, the third air quality sensor unit is electrically connected to the power supply electronic control unit 9, and is used to detect the quality of air filtered by the primary filter cartridge 242, and record air quality change data and filtering time by transmitting data to the power supply electronic control unit 9; and display the remaining usage time of the primary filter cartridge 242 on the touch screen 8, so as to prompt the user to replace the primary filter cartridge 242 in time.

[0077] A fourth air quality sensor unit is provided at the air outlet end of the air duct variable volume cylinder 4 for detecting the quality of air filtered by the final filter element 5 and transmitting the data to the power supply electronic control unit 9 .

[0078] When in use, the fourth air quality sensor unit is electrically connected to the power supply electronic control unit 9, and is used to detect the quality of air after being filtered by the final filter element 5, and to record air quality change data and filtering time by transmitting data to the power supply electronic control unit 9; and to display the remaining usage time of the final filter element 5 on the touch screen 8, so as to prompt the user to replace the final filter element 5 in time.

[0079] Regarding the specific structure of the agarwood essential oil releaser, this embodiment is as follows: Figure 3 , Figure 5 and Figure 6 As shown, the agarwood essential oil releaser 7 includes an oil tank 71 for loading agarwood essential oil, a cotton column attraction rod 721, a heating plate 73, and volatile cotton 74 for distributing agarwood essential oil; an outwardly extending oil pipe 711 is arranged on the side of the oil tank 71, and the essential oil filling port 712 is arranged at the end of the oil pipe 711 and fixed to the upper shell 3; a support tube 72 connected to the inside of the oil tank 71 is installed on the top of the oil tank 71, and the cotton column attraction rod 721 is inserted into the support tube 72; one end of the support tube 72 is inserted into the oil tank 71, and the other end of the support tube 72 is connected to the heating plate 73. The oil tank 71 is connected to the heating plate 73, and a ceramic insulation sleeve 722 is arranged between the support tube 72 and the heating plate 73; the bottom of the heating plate 73 is provided with an oil hole 731 corresponding to the cotton column attraction rod 721, the volatile cotton 74 is placed in the heating plate 73, and the volatile cotton 74 is in contact with the cotton column attraction rod 721 to conduct the agarwood essential oil in the oil tank 71 to the heating plate 73; a heating patch 75 is arranged at the bottom of the heating plate 73, and the heating patch 75 is arranged between the two support tubes 72; the heating patch 75 is electrically connected to the power supply electronic control unit 9.

[0080] Among them, Figure 5 As shown, the heating plate 73 is also provided with a positioning hook 732 for hooking the volatile cotton 74 when replacing the volatile cotton 74 to avoid the problem of the volatile cotton 74 falling when moving the air purifier.

[0081] Specifically, the support tube 72 is a metal tube, which is used to improve the supporting strength of the heating plate 73; the heating plate 73 is ceramic or heat-resistant glass, which is used to avoid the denaturation of natural substances in the agarwood essential oil by metal during the heating and volatilization of the agarwood essential oil, and the thermal insulation effect of ceramic, glass and other materials during the initial heating and end heating of the agarwood essential oil can make the aroma slowly increase or slowly decrease, so that the aroma release is more uniform and has a slow aroma release curve, so as to improve the user's adaptability to the fragrance, and reduce the carbon deposits generated in the heating plate 73 during the heating and volatilization of the agarwood essential oil, thereby reducing the cleaning frequency of the agarwood essential oil releaser 7; more maintenance of the agarwood essential oil releaser 7 is concentrated on the timely adjustment operation after the essential oil release is completed.

[0082] During application, the heating patch 75 is controlled to heat the heating plate 73 through the touch screen 8 and the power electronic control unit 9 to promote the volatilization of the agarwood essential oil absorbed by the volatilization cotton 74 .

[0083] A liquid level sensor is provided in the oil tank 71, and the liquid level sensor is electrically connected to the power electronic control unit 9, and is used to detect the amount of agarwood essential oil in the oil tank 71, and display the current liquid level of the agarwood essential oil on the touch screen 8, to remind the user to replenish the agarwood essential oil in time.

[0084] Specifically, agarwood essential oil is made from the natural aroma substance agarwood as the main substance. It has a natural fragrance and is healthier than aromatherapy essential oils with chemical flavors, avoiding effects on the respiratory tract. Agarwood substances have antibacterial properties, which can be released in conjunction with air purification mechanisms to further purify the air and improve air quality.

[0085] A fifth air quality sensor unit is provided above the agarwood essential oil releaser 7, for detecting the air quality above the agarwood essential oil releaser 7 and at the final outlet, and transmitting the data to the power electronic control unit 9, so as to display the purified air quality data and the aroma concentration released by the agarwood essential oil on the touch screen 8; combined with the data of the unpurified ambient air quality displayed on the touch screen 8, it is convenient for customers to compare and dynamically view the degree of air purification, and the target value of air purification can be set through the touch screen 8, and the air purifier can be automatically started and stopped, thereby saving energy consumption and making it more convenient for users to use it with ease.

[0086] When in use, the fifth air quality sensor unit is electrically connected to the power supply electronic control unit 9 to detect the air quality above the agarwood essential oil releaser 7 and the final air outlet, and transmit data to the power supply electronic control unit 9 to record air quality change data and air outlet time; the remaining usage time of the agarwood essential oil releaser 7 is displayed on the touch screen 8 to prompt the user to clean the agarwood essential oil releaser 7 in time, because the heating plate 73 will affect the final air quality if it is not cleaned in time, and the data can be detected by the particles of the air quality sensor.

[0087] Among them, the air quality sensing unit can be combined with multiple MQ series gas sensors to form a function capable of detecting particulate matter and harmful gases (including formaldehyde, etc.) in the air.

[0088] Regarding the specific structure of the air duct variable volume cylinder, this embodiment is as follows: Figure 3 As shown, the air inlet end and the air outlet end of the air duct variable volume cylinder 4 are both tubular, and the final filter chamber 41 is cubic; the diameter of the air outlet end of the air duct variable volume cylinder 4 is smaller than the diameter of the air inlet duct of the fan 6, the diameter of the air inlet end of the air duct variable volume cylinder 4 is smaller than the diameter of the air outlet end of the air duct variable volume cylinder 4, and the diameter of the air duct pipe 31 is smaller than the diameter of the air inlet end of the air duct variable volume cylinder 4, which is used to gradually increase the air inlet speed of the final filter element 5 and the composite filter unit 24 from top to bottom.

[0089] The fan 6 is equipped with a digital motor, and the rotation speed of the digital motor is not less than 100,000 revolutions per minute, which can increase the air volume while controlling the noise.

[0090] When in use, the diameter of the air duct which decreases step by step from the fan 6 to the air duct pipe 31 is used to increase the air inlet speed of the final filter element 5 and the composite filter unit 24 step by step from top to bottom from the fan 6, so that the air inlet speed is increased step by step, and the air outlet volume is increased, so that the air outlet volume of the fan 6 at the highest speed is at least not lower than the air outlet volume at the medium speed.

[0091] Regarding the air purifier, the air inlet structure is arranged on the lower shell and the air outlet structure is arranged on the upper shell. Figures 1 to 3 As shown, the lower housing 1 and the lower maintenance door 11 are both provided with a through air inlet 12 ; a detachable air outlet cover 34 is installed on the top of the upper housing 3 , and an air outlet net 341 is provided on the air outlet cover 34 .

[0092] When in use, the composite filter unit 24 takes in air through the air inlet hole 12. The air inlet holes 12 arranged around the lower shell 1 increase the air intake of the composite filter unit 24, reduce the speed load of the fan 6, and prevent overload.

[0093] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. An air purifier that emits the scent of agarwood to purify the air, characterized in that: The invention comprises a lower housing, wherein a reusable and antibacterial convenient filtering mechanism is installed in the lower housing; The convenient filtering mechanism is provided with a filter element lifting unit and a composite filtering unit coaxially arranged with the housing, and the outer ring and inner ring interfaces at the bottom end of the composite filtering unit are sealed and connected with the base of the filter element lifting unit; The lower housing is provided with an openable and closable lower maintenance door at a position corresponding to the composite filter unit; and an upper shell, wherein the bottom of the upper shell is provided with an air duct pipe communicating with the interior, the air duct pipe is inserted from top to bottom into the inner ring interface at the top of the composite filter unit for sealing connection, and the bottom of the upper shell is sealedly connected to the outer ring interface at the top of the composite filter unit; and an air duct variable volume cylinder arranged in the upper shell and sealedly connected to the air outlet of the air duct pipe, a square final filter chamber is arranged between the two ends of the air duct variable volume cylinder, a filter element insertion port is arranged on the final filter chamber, and an openable and closable upper maintenance door is arranged on the upper shell at a position corresponding to the filter element insertion port; and a final filter element horizontally inserted into the final filter cavity through the filter element insertion port, for filtering and absorbing pollutants and odors of the air entering the air inlet end of the air duct variable volume cylinder; and a fan installed at the air outlet end of the air duct variable volume cylinder; and an agarwood essential oil releaser arranged around the outer ring of the fan, the agarwood essential oil releaser having a heating function and being provided with an essential oil filling port for repeated use and releasing the agarwood aroma; And a touch screen and a power supply electronic control unit, the touch screen is arranged above the upper maintenance door, and the essential oil filling port is arranged on one side of the touch screen; the power supply electronic control unit is arranged outside the air duct variable volume cylinder, and is used to receive instructions from the touch screen to control the fan and the agarwood essential oil releaser.

2. The air purifier according to claim 1, characterized in that: The composite filter unit comprises a washable and reusable metal filter cylinder and a wood fiber primary filter cartridge; the outer ring of the primary filter cartridge is also provided with a sponge filter sleeve; The metal filter cylinder is used to filter air pollutants with a diameter greater than 40 μm; The primary filter cartridge is used to filter air pollutants with a diameter greater than 3 μm.

3. The air purifier according to claim 2, characterized in that: The outer surface of the metal filter cylinder is provided with a silver ion coating for inhibiting bacteria generated by accumulation of dust woven material pollutants on the outer surface of the metal filter cylinder.

4. The air purifier according to claim 2, characterized in that: The final filter element is composed of a cotton filter layer provided with activated carbon and silver ions and a HEPA filter layer with a filtration grade of H12-H14; the HEPA filter layer of the final filter element faces the air inlet end of the air duct variable volume cylinder, and the cotton filter layer faces the air outlet end of the air duct variable volume cylinder.

5. The air purifier according to claim 2, characterized in that: The filter element lifting unit includes a dust collecting plate and a lifting spring; A first boss and a second boss for positioning the lifting spring are respectively provided in the bottom of the lower housing and the bottom of the dust collecting tray, and two ends of the lifting spring are respectively fitted outside the first boss and the second boss; The top of the dust collecting tray is provided with a coaxially arranged first filter fixing ring and a primary filter element fixing ring, and the primary filter element fixing ring is arranged inside the first filter fixing ring; the bottom of the upper shell is provided with a second filter fixing ring, and the second filter fixing ring is sleeved outside the air duct; The two ends of the metal filter cylinder are respectively mounted on the outside of the first filter fixing ring and the second filter fixing ring in a detachable sealing manner; the two ends of the primary filter element cylinder are respectively mounted on the outside of the primary filter element fixing ring and the air duct in a detachable sealing manner.

6. The air purifier according to claim 5, characterized in that: A first air quality sensor unit is provided between the lower housing and the metal filter cylinder, for detecting the air quality of the current environment and transmitting data to the power supply electronic control unit; A second air quality sensor unit is provided between the metal filter cylinder and the primary filter cartridge, for detecting the quality of air filtered by the metal filter cylinder and transmitting data to the power supply electronic control unit; A third air quality sensor unit is provided at the air inlet end of the air duct variable volume cylinder, for detecting the quality of air filtered by the primary filter cartridge and transmitting data to the power supply electronic control unit; A fourth air quality sensor unit is provided at the air outlet end of the air duct variable volume cylinder, for detecting the quality of air filtered by the final filter element and transmitting data to the power supply electronic control unit; A fifth air quality sensor unit is arranged above the agarwood essential oil releaser to detect the air quality above the agarwood essential oil releaser and the final air outlet, and transmit the data to the power supply electronic control unit.

7. The air purifier according to claim 1, characterized in that: The air inlet and outlet ends of the air duct variable volume cylinder are both in the shape of a circular tube, and the final filter chamber is in the shape of a cube; The diameter of the air outlet end of the air duct variable volume cylinder is smaller than the diameter of the air inlet duct of the fan, the diameter of the air inlet end of the air duct variable volume cylinder is smaller than the diameter of the air outlet end of the air duct variable volume cylinder, and the diameter of the air duct pipe is smaller than the diameter of the air inlet end of the air duct variable volume cylinder, which is used to gradually increase the air inlet speed of the final filter element and the composite filter unit from top to bottom.

8. The air purifier according to claim 1, characterized in that: The agarwood essential oil releaser comprises an oil tank for loading agarwood essential oil, a cotton column suction rod, a heating plate, and volatile cotton for distributing agarwood essential oil; an outwardly extending oil pipe is arranged on the side of the oil tank, and the essential oil filling port is arranged at the end of the oil pipe and fixed to the upper shell; A support tube connected to the inside of the oil tank is installed on the top of the oil tank, and the cotton column suction rod is inserted into the support tube; one end of the support tube is inserted into the oil tank, and the other end of the support tube is connected to the heating plate, and a ceramic heat insulation sleeve is provided between the support tube and the heating plate; The bottom of the heating plate is provided with an oil hole corresponding to the cotton column attraction rod, the volatile cotton is placed in the heating plate, and the volatile cotton is in contact with the cotton column attraction rod to transfer the agarwood essential oil in the oil tank to the heating plate; A heating patch is provided at the bottom of the heating plate, and the heating patch is arranged between the two support tubes; the heating patch is electrically connected to the power supply electronic control unit.

9. The air purifier according to claim 8, characterized in that: A temperature sensor electrically connected to the power supply electronic control unit is provided at the top of the oil tank and between the oil tank and the heating plate. The probe of the temperature sensor extends into the volatile cotton through the side of the heating plate to measure the temperature information of the volatile cotton.

10. The air purifier according to claim 1, characterized in that: The lower shell and the lower maintenance door are both provided with penetrating air inlet holes; a detachable air outlet cover is installed on the top of the upper shell, and an air outlet net is provided on the air outlet cover.

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