Patent Publication Number: US-2021178306-A1

Title: Aromatherapy machine for air purification

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The present application claims priority to Chinese Patent Application Ser. No. CN201922302702.6, filed on Dec. 17, 2019, the entire content of which is incorporated herein by reference in its entirety. 
     BACKGROUND 
     Technical Field 
     The present application relates to the field of air purification technology, and more particularly, relates to an aromatherapy machine for air purification. 
     Description of Related Art 
     With the continuous improvement of people&#39;s living standards, more and more motorists generally put fragrance or aromatherapy machine in the car in order to avoid the deterioration of the air quality in the closed space of the car due to factors such as perspiration of the human body, emission of material gas in the car, or bacterial growth. Through release fragrance by aroma or diffusion and atomization of essential oil particles by aromatherapy machine, the air odor in the car is removed, and thus achieving the purpose of improving the air quality in the car. However, the aroma released by the fragrance or the atomized essential oil particles diffused by the aromatherapy machine usually has a lower purification efficiency of the air in the car, resulting in a poor improvement of the ambient air quality in the car and affecting the user experience. 
     SUMMARY 
     The purpose of the present application is to provide an aromatherapy machine for air purification, so as to solve the problem that the aromatherapy machine in the related art has a low efficiency in purifying the air in the car and resulting in a poor effect of improving the ambient air quality in the car. 
     To achieve the above purpose, the technical scheme employed in the embodiment of the present application is to provide an aromatherapy machine for air purification, comprising: 
     a housing, defining therein an air inlet and an air outlet; 
     a fan, installed in the housing; 
     a filter, configured for filtering and purifying air in the housing; and 
     an aromatherapy device, arranged in the housing and configured to diffuse an essential oil for aromatherapy. 
     The filter is installed in the housing, and the housing defines therein a mist outlet, configured to enable a diffused essential oil to diffuse to an outside of housing. 
     In an embodiment, the fan is located at the air inlet and the filter is located at the air outlet; or the fan is located at the air outlet and the filter is located at the air inlet. 
     In an embodiment, a grid for dispersing an airflow is arranged in the air inlet. 
     In an embodiment, the grid comprises a grid frame and a plurality of grid plates. The plurality of grid plates are sequentially spaced inside the grid frame in parallel, and an air duct configured for enabling the airflow to pass therethrough is formed between every two adjacent grid plates. 
     In an embodiment, the plurality of the grid plates are arranged at equal intervals. 
     In an embodiment, the aromatherapy device comprises: an essential oil vial configured for storing the essential oil, and an atomization device configured for atomizing the essential oil from the essential oil vial and spraying out an atomized essential oil. The essential oil vial and the atomization device are arranged in the housing. 
     In an embodiment, the atomization device comprises: an air pump configured for providing an airflow, an atomization cover defining therein an atomization chamber, an air nozzle arranged in the atomization chamber, an air pipe connecting the air pump and the air nozzle, an oil suction pipe extending into the essential oil vial, and an oil nozzle connected to the oil suction pipe. The atomization cover is provided with a connection port configured for fitting connection with the essential oil vial, the connection port communicates with the atomization chamber, an outlet of the air nozzle is located at a position corresponding to an oil outlet of the oil nozzle, and the mist outlet communicates with the atomization chamber. 
     In an embodiment, an outer sidewall of an opening of the essential oil vial defines external threads, and an inner sidewall of the connection port defines internal threads configured to be fitted to the external threads. 
     In an embodiment, a bottom of the atomization chamber has a bevel extending obliquely to the connection port. 
     In an embodiment, the housing comprises: an air purification cylinder, and a pedestal supporting the air purification cylinder. The air inlet and the air outlet are located at two ends of the air purification cylinder, respectively. The fan and the filter are arranged inside the air purification cylinder. 
     The one or more technical schemes in the embodiments of the present application have at least one of the following technical effects: 
     The beneficial effect of the aromatherapy machine for air purification provided in the present application lies in that, compared with the prior art, the aromatherapy machine for air purification provided in the present application, the housing is provided with an aromatherapy device, and the essential oil diffuses by the aromatherapy device and the diffused essential oil is sprayed out of the mist outlet so that the aroma of the air in the car can be achieved. In addition, a fan and a filter are arranged in the housing, and a negative pressure airflow is generated in the housing by the fan. The air in the car is sucked in from the air inlet and filtered by the filter. The filtered and purified air is then discharged into the car from the air outlet to achieve circular purification function of air in the car. The fans and filters that filter and purify the air are installed in the housing to improve the purification efficiency of the air in the car. While the essential oil is diffused by aromatherapy device in the car, it can also quickly purify the air in the car to achieve a good aroma and purification effect. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In order to explain the technical schemes in the embodiments of the present disclosure more clearly, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without devoting creative labor. 
         FIG. 1  is a perspective view of an aromatherapy machine for air purification according to an embodiment of the present application; 
         FIG. 2  is a cross-sectional view of the aromatherapy machine; 
         FIG. 3  is an exploded view of the aromatherapy machine; 
         FIG. 4  is a partially enlarged view of an essential oil vial, an oil nozzle, and an air nozzle of the aromatherapy machine; 
         FIG. 5  is another partially enlarged view of a grid of the aromatherapy machine; 
         FIG. 6  is a perspective view of an ejection mechanism according to an embodiment of the present disclosure; 
         FIG. 7  is a cross-sectional view of an aromatherapy device and an ejection mechanism according to an embodiment of the present application; 
         FIG. 8  is an exploded view of the aromatherapy device and the ejection mechanism; and 
         FIG. 9  is a partially enlarged schematic view of a locking mechanism of the ejection mechanism. 
     
    
    
     The following reference numerals are used in the drawings: 
       1 —Housing;  11 —Air inlet;  12 —Air outlet;  13 —Air purification cylinder;  14 —Pedestal;  15 —Mist outlet;  16 —Accommodation chamber; 
       2 —Fan; 
       3 —Filter; 
       4 —Aromatherapy device;  41 —Essential oil vial;  42 —Atomization device;  421 —Air pump;  422 —Atomization cover;  423 —Atomization chamber;  424 —Air nozzle;  425 —Oil nozzle;  426 —Connection port;  427 —Oil suction pipe; 
       5 —Grid;  51 —Grid frame;  52 —Grid plate;  53 —Air duct; 
       6 —Ejection mechanism;  61 —Outer sleeve;  611 —Sliding groove;  62 —Inner sleeve;  621 —Slider;  622 —Locking groove;  623 —Limiting groove;  624 —Slot;  63 —Spring;  64 —Locking mechanism;  641 —Pull rod;  642 —Hook;  65 —Limiting spring arm;  66 —Limiting block. 
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     In order to make the purpose, technical scheme, and advantages of the present disclosure clearer, the present disclosure is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not intended to limit the present disclosure. 
     It should be noted that when one component is called to be “fixed to” or “arranged on” another component, it may be directly on the other component or indirectly on the other component. When one component is referred to as being “connected to” another component, it can be directly connected to the other component or indirectly connected to the other component. 
     In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of “a plurality of” is two or more, unless it is specifically defined otherwise. 
     In the description of the present application, it should be noted that the terms “installed”, “connected”, and “connecting” should be understood in a broad sense, unless explicitly stated and limited otherwise. For example, it may be fixedly connected or removably connected or connected in one piece; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations. 
     Referring to  FIGS. 1, 2, and 3 , an aromatherapy machine for air purification provided by the present application will now be described. The aromatherapy machine for air purification provided in the present application includes: a housing  1 , a fan  2 , a filter  3 , and an aromatherapy device  4 . The housing  1  defines therein an air inlet  11  and an air outlet  12 , the fan  2  and the filter  3  are installed inside the housing  1 , and the fan  2  is configured to generate a negative pressure airflow to allow the housing  1  to suck in air from outside, the filter  3  is configured to filter and purify the air in the housing  1 . The aromatherapy device  4  is arranged in the housing  1 , and the housing  1  defines a mist outlet  15 , configured for enable a diffused essential oil to diffuse out of the housing  1 . The Essential oil is diffused by aromatherapy device  4 , and the diffused essential oil is sprayed out via the mist outlet  15 , such that the air inside the car is incensed. 
     Compared with the prior art, an aromatherapy machine for air purification provided in the present application, in which, the aromatherapy device  4  is arranged in the housing  1 , and the essential oil can be diffused by the aromatherapy device  4 , and the diffused essential oil is sprayed out via the mist outlet  15 , such that the air inside the car is incensed. In addition, the fan  2  and the filter  3  are arranged in housing  1 . A negative pressure airflow is generated in the housing  1  by the fan  2 , and the air in the car is sucked in from the air inlet  11  and filtered and purified by the filter  3 . The filtered and purified air is then discharged into the car from the air outlet  12  to achieve circular purification function of the air in the car. Because the fan  2  and the filter  3  are installed in the housing  1  to filter and purify the air, the purification efficiency of the air in the car is improved. While the essential oil is diffused in the aromatherapy device  4 , and the air in the car can be quickly purified, thereby achieving a good aroma and air purification effect. 
     Specifically, filter  3  may include, but not limited to, an electrostatic electret filter with low wind resistance, high efficiency, and high dust holding capacity, an activated carbon filter with a high volume of pore structure and a large surface area, or a high efficient particulate air filter (HEPA filter). 
     In one embodiment, as a specific implementation of the aromatherapy machine for air purification provided in the present application, the fan  2  is located at the air inlet  11 , and filter  3  is located at air outlet  12 . In this embodiment, by arranging the fan  2  at the air inlet  11  and by arranging the filter  3  at the air outlet  12 , it is beneficial to increase the air pressure of the air purification cylinder  13  and to improve the efficiency of air filtration and purification. 
     According to an embodiment, referring to  FIGS. 2-4 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the fan  2  is located at the air outlet  12  and the filter  3  is located at the air inlet  11 . In the embodiment, by arranging the fan  2  at the air outlet  12  and by arranging the filter  3  at the air inlet  11 , it is beneficial to increase the air pressure of the air purification cylinder  13  and to improve the efficiency of air filtration and purification. 
     According to an embodiment, referring to  FIGS. 2-4 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, a grid  5  is arranged within the air inlet  11  for dispersing airflow. In this embodiment, the grid  5  is arranged in the air inlet  11 , and the airflow is dispersed by the grid  5  to prevent the airflow from flowing too concentratedly to the air purification cylinder  13 , which has a strong impact on the filter  3  of the air purification cylinder  13  and affects the filtering effect. 
     According to an embodiment, referring to  FIGS. 3-4 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the air outlet  12  may further be provided therein with a grid  5  for adjusting the flow direction of the airflow. The grid  5  is capable of adjusting the direction of the airflow, thereby changing the blowing direction of air outlet  12  of the air purification cylinder  13 , so that the filtered and purified air is quickly discharged to all corner spaces in the car, which is beneficial to improve the efficiency of the ambient air quality in the car. 
     According to an embodiment, referring to  FIG. 5 , as a specific implementation of an aromatherapy machine for air purification provided in the present application, the grid  5  includes a grid frame  51  and a plurality of grid plates  52 , and the plurality of grid plates  52  are sequentially spaced in parallel inside the grid frame  51 . An air duct  53  configured for the airflow to pass therethrough is formed between every two adjacent grid plates  52 . 
     In this embodiment, the grid  5  includes a grid frame  51  and a plurality of grid plates  52  which are sequentially spaced in parallel inside the grid frame  51 . Each grid plate  52  and an adjacent grid plate  52  form an air duct  53 , respectively, for changing the blowing direction, and the airflow discharged through the air outlet  12  effectively changes the blowing direction and adjusts the blowing flow rate under the action of air duct  53 , so that the filtered and purified air is quickly discharged to all corner spaces in the car. 
     According to an embodiment, referring to  FIG. 5 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the plurality of grid plates  52  are arranged at equal intervals. In this embodiment, a plurality of grid plates  52  are arranged at equal intervals, so that the airflow velocity of the air blown out by the grid is uniform, and a good exhaust effect is achieved, thereby preventing turbulent airflow due to uneven exhaust flow velocity, which would otherwise produce noise and reduce user experience. 
     According to embodiment, referring to  FIGS. 2-4 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the aromatherapy device  4  includes: an essential oil vial  41  configured for storing the essential oil, and an atomization device  42  configured for atomizing the essential oil from the essential oil vial  41  and spraying out an atomized essential oil, and the essential oil vial  41  and the atomization device  42  are arranged in the housing  1 . 
     In this embodiment, the aromatherapy device  4  includes an essential oil vial  41  and an atomization device  42  arranged in the housing  1 . The essential oil can be stored in the essential oil vial  41  in advance, and the essential oil in the essential oil vial  41  can be atomized into mist-like essential oil particles by the atomization device  42 . The mist-like essential oil particles are diffused into the air in the car through the mist outlet  15  of the housing  1 , and the air in the car can be incensed. 
     Accordingly to an embodiment, referring to  FIGS. 2-4 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the atomization device  42  includes: an air pump  421  configured for providing an airflow, an atomization cover  422  defining therein an atomization chamber  423 , an air nozzle  424  arranged in the atomization chamber  423 , an air pipe (not shown in the figure) connecting the air pump  421  and the air nozzle  424 , an oil suction pipe  427  extending into the essential oil vial  41 , and an oil nozzle  425  connected to the oil suction pipe  427 . The atomization cover  422  is provided with a connection port  426  configured for fitting connection with the essential oil vial  41 . The connection port  426  communicates with the atomization chamber  423 . An outlet of the air nozzle  424  is located at a position corresponding to an oil outlet of the oil nozzle  425 . The atomization chamber  423  communicates with the mist outlet  15 . 
     In this embodiment, the atomization cover  422  defines therein the atomization chamber  423 . The atomization cover  422  defines the mist outlet  15  communicating with the atomization chamber  423 . A lower end of the atomization cover  422  is provided with a connection port  426 . A vial mouth of the essential oil vial  41  is connected to the atomization cover  422  through the connection port  426 . The atomization cover  422  is installed on the housing  1 , and the air pump  421  is installed in the housing. The housing  1  supports and protects the air pump  421 . One end of the air pipe is connected to the air pump  421 , and the other end of the air pipe is connected to the air nozzle  424 . The airflow provided by the air pump  421  is transmitted to the air nozzle  424  through the air pipe, and is ejected from the air nozzle  424 . The oil outlet of the oil nozzle  425  is located in the atomization chamber  423 , the outlet of the air nozzle  424  is located at a position corresponding to the oil nozzle  425 , and the oil nozzle  425  is located at a position corresponding to the connection port  426 , so that when the connection port  426  is connected to the essential oil vial  41 , the oil nozzle  425  can extract the essential oil from the essential oil vial  41  through the oil suction pipe  427 , and the upper end of the oil nozzle  425  extends into the atomization chamber  423 , and the outlet of air nozzle  424  is located at the upper end of oil nozzle  425 ; thus, when air pump  421  generates high-pressure gas and the high-pressure gas is released from air nozzle  424 , a negative pressure is formed at the upper end of the oil nozzle  425  to extract the essential oil from the essential oil vial  41  through the oil suction pipe  427 . The extracted essential oil is ejected from the oil outlet of the oil nozzle  425 . The liquid droplets will be blown away by the high-speed airflow sprayed from the air nozzle  424  and be atomized to form a mixed airflow, and at the same time, the pressure in the atomization chamber  423  will be increased; and as the connection port  426  is connected to the essential oil vial  41 , the airflow in the atomization chamber  423  will be sprayed out of the mist outlet  15  to incense the air in the car and improve the air quality inside the car 
     According to an embodiment, referring to  FIGS. 2-4 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, an outer sidewall of an opening of the essential oil vial  41  defines external threads, and an inner sidewall of the connection port  426  defines internal threads fitted to the external threads. 
     In this embodiment, the external threads are arranged on the outer sidewall of the opening of the essential oil vial  41 , and the internal threads are arranged on the inner sidewall of the connection port  426 . By matching the external threads with the internal threads, it is convenient and fast to connect the essential oil vial  41  and the connection port  426 , and the sealing of the connection between the essential oil vial  41  and the connection port  426  can be enhanced. 
     According to an embodiment, referring to  FIG. 2 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, a bottom of the atomization chamber  423  has a bevel extending obliquely to the connection port  426 . 
     In this embodiment, the bottom of the atomization chamber  423  has a bevel that extends obliquely to the connection port  426 . Through the guidance of the bevel, large particles of essential oil droplets are guided back to the essential oil vial  41  to avoid affecting the essential oil atomization effect and reduce essential oil waste. 
     According to an embodiment, referring to  FIGS. 1-3 , as a specific implementation of the aromatherapy machine for air purification provided in this application, the housing  1  includes: an air purification cylinder  13 , and a pedestal  14  supporting the air purification cylinder  13 . The air inlet  11  and the air outlet  12  are located at two ends of the air purification cylinder  13 , respectively and the fan  2  and the filter  3  are arranged inside the air purification cylinder  13 . 
     In this embodiment, the housing  1  includes: the air purification cylinder  13  extending axially and horizontally, and the pedestal  14  supporting the air purification cylinder  13 . The air inlet  11  and the air outlet  12  are located at the two ends of the air purification cylinder  13 , respectively. The fan  2  and the filter  3  are arranged inside the air purification cylinder  13 . When in use, a negative pressure airflow is generated in the air purification cylinder  13  through the fan  2 , and the air in the car is sucked in from the air inlet  11  at one end of the air purification cylinder  13  and filtered and purified by the filter  3 . The filtered and purified air is then discharged from the air outlet  12  at the other end of the air purification cylinder  13  into the car, realizing the circular purification function of the air in the car. As the air inlet  11  and the air outlet  12  are arranged at the two ends of the air purification cylinder  13 , respectively, the wind resistance is reduced, the fast convection of the airflow is easily realized, the purification efficiency of the air in the car is improved, and the air quality in the car environment is improved. 
     According to an embodiment, referring to  FIG. 2 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the pedestal  14  defines therein an accommodation chamber  16  which is in communication with the air purification cylinder  13 , and the air pump  421  is arranged in the accommodation chamber  16 . The atomization cover  422  is arranged in the air purification cylinder  13 , and the essential oil vial  41  is located between the air pump  421  and the atomization cover  422 . In this embodiment, an accommodation chamber  16  communicating with the air purification cylinder  13  is arranged on the pedestal  14  to put the air pump  421  in the accommodation chamber  16 , the atomization cover  422  is arranged in the air purification cylinder  13 , and the essential oil vial  41  is located between the air pump  421  and the atomization cover  422 . The structural layout of the aromatherapy machine used for air purification is compact and reasonable, which is beneficial to reduce the volume of the aromatherapy machine used for air purification, taking up less space and facilitating the placement in a small space in the car. 
     According to an embodiment, referring to  FIGS. 2-3 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, an end of the oil nozzle  425  away from the oil outlet is provided with a connection sleeve. The oil suction pipe  427  is inserted into the oil nozzle  425  detachably, and the oil suction pipe  427  is arranged in the essential oil vial  41 . 
     In this embodiment, a connection sleeve is arranged at an end of the oil nozzle  425  away from the oil outlet, and an oil suction pipe  427  is detachably inserted in the connection sleeve. The oil suction pipe  427  is connected to the lower end of the oil nozzle  425 . The essential oil in the essential oil vial  41  is sucked into the oil nozzle  425  by the negative pressure. In addition, the oil suction pipe  427  is detachably inserted into the connection sleeve of the oil nozzle  425 , and the oil suction pipe  427  of different lengths can be replaced according to different essential oil vial  41  to improve the adaptability. 
     According to an embodiment, referring to  FIGS. 2-4 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the housing  1  is provided therein with an accommodation space for accommodating and positioning an essential oil vial  41  to accommodate and position the essential oil vial  41  in the accommodation space, in order to facilitate the installation of the essential oil vial  41 , and to enhance the stability of the essential oil bottle  41  installation. 
     According to an embodiment, referring to  FIGS. 3-4 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, an axial direction of the outlet of the air nozzle  424  is directed to a top of an upper side wall of the oil nozzle  425 . Therefore, when the air is sprayed from the outlet of the air nozzle  424 , the air can cover the upper end of the oil nozzle  425 , to better form a vacuum at the upper end of the oil nozzle  425 . At the same time, the top of the upper side wall of the oil nozzle  425  can change the flow direction of the air nozzle  424 , and further, the essential oil droplets extracted by the oil nozzle  425  can be better atomized. 
     According to an embodiment, referring to  FIGS. 3-4 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the axial direction of the outlet of the air nozzle  424  is inclined upwardly to the top of side wall of the upper end of the oil nozzle  425 . This structure can prevent the airflow sprayed out of the air nozzle  424  from being blown into the pipe outlet of the upper end of the oil nozzle  425 , so that the essential oil can be better extracted, and the extracted essential oil can be obliquely and upwardly blown out, which can better atomize the essential oil. 
     According to an embodiment, referring to  FIGS. 3-4 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the side wall of the upper end of the oil nozzle  425  is conical, so that the side wall of the upper end of the oil nozzle  425  can guide the airflow ejected from the air nozzle  424  upwardly, thus the airflow can better atomize the essential oil extracted by the oil nozzle  425 . In other embodiments, the side wall of the upper end of the oil nozzle  425  may also be arc-shaped convex upward. 
     According to an embodiment, referring to  FIGS. 2, 6, and 7 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the housing  1  defines an accommodation slot fitted with an atomization device  42 . An accommodation slot is provided with an ejection mechanism  6  for ejecting the atomization device  42 . 
     In this embodiment, an accommodation slot is defined in housing  1 . The accommodation slot is used to accommodate the atomization device. When in use, the atomization device can be built in the accommodation slot to hide the atomization device, which achieves detachable connection and avoids the atomization device damage. In addition, an ejection mechanism  6  for ejecting an atomization device is arranged in the accommodating slot. When the atomization device is damaged, the atomization device can be ejected from the accommodating slot by the ejection mechanism  6 , and the atomization device can be conveniently removed from the accommodating slot. Easy maintenance and replacement of the atomization device could extend the life of the aromatherapy device  4  and reduce the cost of the aromatherapy device  4  utilization. 
     According to an embodiment, referring to  FIGS. 2, 6, and 7 , as a specific implementation of the aromatherapy machine for air purification provided in this application, the ejection mechanism  6  includes an outer sleeve  61  fixed in the accommodation slot, an inner sleeve  62  for accommodating the atomization device  42 , a spring  63  for elastically pushing the inner sleeve  62  outward, and a locking mechanism  64  for locking the inner sleeve  62  inside the outer sleeve  61 . The inner sleeve  62  is slidably installed in the outer sleeve  61 , a spring  63  is arranged in the outer sleeve  61 , a locking mechanism  64  is connected to the outer sleeve  61 , and an inner sleeve  62  is connected to the atomization device  42 . 
     In this embodiment, the ejection mechanism  6  includes: an outer sleeve  61 , an inner sleeve  62 , a spring  63 , and a locking mechanism  64 . The outer sleeve  61  is fixedly connected to an accommodation slot, and the inner sleeve  62  is slidably installed in the outer sleeve  61 . The spring  63  is arranged in the outer sleeve  61 , and the inner sleeve  62  is elastically pushed from the bottom of the outer sleeve  61  toward the top of the outer sleeve  61  by the spring  63 . When the atomization device is arranged in the accommodation slot, the atomization device is arranged and connected to the inner sleeve  62 , and then press the atomization device along the inner sleeve  62  (down) with force, to overcome the elastic pushing force of the spring  63  (up), the atomization device following with the inner sleeve  62  slides to the inside of the outer sleeve  61  along the axial direction of the outer sleeve  61 , and the inner sleeve  62  is locked in the outer sleeve  61  with the locking mechanism  64 , so that the atomization device is built in and hidden in the housing  1  for use. In addition, by hiding the atomization device in housing  1 , the atomization device can be protected by housing  1  to avoid damage to the atomization device. At the same time, the atomization device is built in housing  1 , which reduces the volume of the entire aromatherapy device  4 , which is convenient for placing the aromatherapy device  4  in a small area. When it is necessary to repair or replace the atomization device, the locking mechanism  64  only need to unlock the inner sleeve  62 , the inner sleeve  62  is lifted from the bottom of the outer sleeve  61  toward the top of the outer sleeve  61  by the spring  63  under the elastic pushing effect of the spring  63  (upward), so that the atomization device following with the inner sleeve  62  slides to the outside of the outer sleeve  61  along the axial direction of outer sleeve  61 , and then ejects from the accommodation slot, and the atomization device can be easily taken out from the accommodation slot, and is easy to repair and replace. 
     In another embodiment, as a specific implementation of the aromatherapy device  4  provided in the present application, the ejection mechanism  6  may further include: an outer sleeve  61  fixed in the accommodation slot, an inner sleeve  62  used to accommodate the atomization device and fitted to connect with the atomization device, a spring  63  that elastically pushes the inner sleeve  62  outward, and a locking mechanism  64  for locking the inner sleeve  62  inside the outer sleeve  61 . The inner sleeve  62  is slidably installed in the outer sleeve  61 , the locking mechanism  64  is a buckle arranged on the outer sleeve  61 , and an inner sleeve  62  defines a groove that is fitted with the buckle. The inner sleeve  62  is locked to the outer sleeve  61  by an interference fit buckle mechanism. The atomization device can be conveniently built into the housing  1  for use, or the atomization device will be taken out from the accommodation slot, which is convenient for maintenance and replacement of the atomization device. It can be understand that an external thread may be defined on the outer wall of the inner sleeve  62 , and an internal thread may be defined on the inner wall of the outer sleeve  61 . The inner sleeve  62  is locked to the outer sleeve by connecting the inner sleeve  62  with the external and internal threads, the atomization device can be conveniently built into housing  1  for use, or the atomization device will be taken out from the accommodation slot, which is convenient for maintenance and replacement of the atomization device. 
     According to an embodiment, referring to  FIGS. 7 and 8 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, an inner side wall of the outer sleeve  61  is recessed to form a sliding groove  611 . A slider  621  fitting with the sliding groove  611  is protruded on an outer side wall of the inner sleeve  62 . 
     In this embodiment, the inner side wall of the outer sleeve  61  is recessed to form the sliding groove  611 , and the slider  621  is correspondingly convexly formed on the outer side wall of the inner sleeve  62 . By the combination of the slider  621  and the slide groove  611 , the inner sleeve  62  is installed by sliding in the outer sleeve  61  to enhance the stability of the movement of the inner sleeve  62  along the outer sleeve  61  axial direction, which is beneficial to the rapid and stable installation or detachment of the atomization device. 
     According to an embodiment, referring  FIGS. 3, 7, and 8 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the locking mechanism  64  includes: a pull rod  641  arranged in the slide groove  611 , and a hook  642  bent from one end of the pull rod  641  toward the slider  621 ; and the other end of the pull rod  641  is fixed on the outer sleeve  61 . The slider  621  is provided with a locking groove  622  for engaging with the hook  642  to lock or unlock. 
     In this embodiment, the locking mechanism  64  includes the pull rod  641  and the hook  642  bent from one end of the pull rod  641  toward the slider  621 . The hook is located at the sliding groove  611 , and the end of the pull rod  641  away from the hook  642  is fixed to the outer sleeve  61 . When the inner sleeve  62  slides to the bottom of the outer sleeve  61 , the locking groove  622  is locked by the hook  642  to lock the inner sleeve  62  in the outer sleeve  61 . The atomization device following with the inner sleeve  62  slides to the inside of the outer sleeve  61  along the outer sleeve  61  axial direction, so that the atomization device is built in and hidden in housing  1  for use. When the atomization device needs to be repaired or replaced, the hook  642  only needs to be released from the locking groove  622  and the inner sleeve  62  is unlocked, the spring  63  (upward) elastically pushes the inner portion by the spring  63 . The inner sleeve  62  is elastically pushed from the bottom of the outer sleeve  61  toward the top of the outer sleeve  61 , so that the atomization device following with the inner sleeve  62  slides to the outside of the outer sleeve  61  along the outer sleeve  61  axial direction, and then the accommodation slot is ejected. So that atomization device could be easily removed from the accommodation slot for maintenance and replacement of the atomization device. 
     According to an embodiment, referring to  FIGS. 4, 8, and 9 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, a slider  621  is provided with a limiting groove  623 , configured for guiding the hook  642  to move in or out of the of the locking groove  622 , the locking groove  622  is located inside the limiting groove  623 . 
     In this embodiment, a slider  621  is provided with a limiting groove  623 , configured for guiding the hook  642  to move in or out of the locking groove  622 , the locking groove  622  is located inside the limiting groove  623 . The movement path of the hook  642  is guided by the limiting groove  623 , so that the hook  642  can smoothly move in or out of the locking groove  622 , and the inner sleeve  62  can be locked or unlocked and the smoothness and stability of the hook  642  to be moved in or out of the locking groove  622  could be enhanced, which facilitates the installation and detachment of the atomization device. 
     According to an embodiment, referring to  FIGS. 4, 8, and 9 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the limiting groove  623  is provided with a limiting spring arm  65  configured for stopping the hook  642  and defining the movement path of the hook  642  in the limiting groove  623 . 
     In this embodiment, a limiting spring arm  65  is arranged in the limiting groove  623 , and the hook  642  can be stopped by the limiting spring arm  65  to limit the movement path of the hook  642  in the limiting groove  623 , thereby further making the hook  642  capable of moving in or out of the locking groove  622  quickly and smoothly, to achieve the locking or unlocking of the inner sleeve  62  and to enhance the smoothness and stability of the hook  642  moving in or out of the locking groove  622 , thus facilitating the installation and detachment of the atomization device. 
     According to an embodiment, referring to  FIGS. 4, 8, and 9 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, an inner wall of the limiting groove  623  is convex to form a limiting block  66  for stopping the hook  642  and defining a movement path of the hook  642 , and the position of the limiting block  66  correspond to the opening position of the locking groove  622 . 
     In this embodiment, a limiting block  66  is protruded on the inner side wall of the limiting groove  623 , and when the hook  642  moves out of the locking groove  622 , the limiting block  66  is used to stop hook  642  coordinately, the movement path of the hook  642  is limited, so that the hook  642  can move out of the lock groove  622  quickly and stably, and the inner sleeve  62  can be quickly unlocked. The efficiency of the installation and detachment of the atomization device can be improved, and the stability of installation and detachment of the atomization device can be enhanced. 
     According to an embodiment, referring to  FIG. 7 , as a specific implementation of the aromatherapy machine for air purification provided in the present application, the slider  621  is provided with a slot  624  for inserting the top end of the spring  63 , and the slot  624  extends along an axial direction of the inner sleeve  62 , and a bottom end of the spring  63  is connected to the inner bottom surface of the outer sleeve  61 . 
     In this embodiment, the slider  621  is provided with a slot  624  for inserting the top end of the spring  63 , and the slot  624  extends along the axial direction of the inner sleeve  62 , and the top end of the spring  63  is arranged in the slot  624 . The bottom end of the spring  63  is connected to the inner bottom surface of the outer sleeve  61 , so that the spring  63  is defined by the slot  624 , which enhances the stability of the spring  63  to push the inner sleeve  62  elastically. 
     The above description is only the preferred embodiments of this application, and is not intended to limit this application. Any modification, equivalent replacement, and improvement made within the spirit and principle of this application shall be included in the protection range of this application.