WO2020024145A1 - 精油回流式雾化器 - Google Patents

精油回流式雾化器 Download PDF

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Publication number
WO2020024145A1
WO2020024145A1 PCT/CN2018/098014 CN2018098014W WO2020024145A1 WO 2020024145 A1 WO2020024145 A1 WO 2020024145A1 CN 2018098014 W CN2018098014 W CN 2018098014W WO 2020024145 A1 WO2020024145 A1 WO 2020024145A1
Authority
WO
WIPO (PCT)
Prior art keywords
essential oil
nozzle
type atomizer
return type
filter
Prior art date
Application number
PCT/CN2018/098014
Other languages
English (en)
French (fr)
Inventor
宋保洁
Original Assignee
璞真生活有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 璞真生活有限公司 filed Critical 璞真生活有限公司
Priority to CN201880000924.8A priority Critical patent/CN109641226B/zh
Priority to PCT/CN2018/098014 priority patent/WO2020024145A1/zh
Publication of WO2020024145A1 publication Critical patent/WO2020024145A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0491—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid the liquid and the gas being mixed at least twice along the flow path of the liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/28—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material

Definitions

  • the invention belongs to the field of atomizers, and more particularly, relates to an essential oil return type atomizer.
  • Essential oils are often used in life to improve the surrounding environment or to perform medical treatments, such as sterilization, disinfection, and changing environmental odors.
  • an atomizer is used to atomize the essential oils for easy absorption by personnel or diffusion into the environment.
  • the current essential oil atomizer generally sprays high-speed airflow through a gas nozzle.
  • the siphon principle sucks out the essential oil in the essential oil bottle and is dispersed by the high-speed airflow to achieve atomization.
  • this atomization method results in large droplets of essential oil in the atomized gas and poor atomization performance. When these droplets are ejected, a large amount of essential oil is wasted.
  • the purpose of the present invention is to provide an essential oil reflux type atomizer to solve the problems of poor essential oil atomizing performance and the waste of a large amount of essential oil in the prior art.
  • an essential oil return type atomizer which includes a casing, a casing having an atomizing cavity, an air pump installed in the casing, and an air pump installed in the casing.
  • the casing is mounted on the casing, and the upper end of the nozzle extends into the atomizing cavity, so that An outlet of the gas nozzle is located at an upper end of the oil nozzle, and a mist outlet is formed on the casing to communicate with the atomization cavity, and a lower end of the casing is provided with a connection port for cooperatively connecting the essential oil bottle,
  • the oil nozzle is located at a position corresponding to the connection port, and a filtering and atomizing mechanism for atomizing and filtering the essential oil droplets in the airflow flowing from the atomizing cavity to the mist outlet is installed in the casing.
  • the filtering and atomizing mechanism is placed in the atomizing cavity; the filtering and atomizing mechanism includes a plurality of filter shells for the airflow to pass through in sequence, and a lower end of each filter shell is provided with a plurality of filter oils for filtering the essential oil in the airflow Droplet through hole.
  • each of the filter shells has a cylindrical shape, and a number of the filter shells are sequentially reduced in diameter, and a plurality of the filter shells are coaxially arranged, and the two adjacent filter shells are: the inner layer of the filter shell is inserted into the outer layer In the filter shell, the inner cavity of the filter shell in the innermost layer is in communication with the mist outlet.
  • each of the filter shells is an arc-shaped surface that is recessed upward in the middle.
  • each side of each of the filter shells is provided with the through hole.
  • the through holes on two adjacent filter cases are staggered from each other.
  • the filtering and atomizing mechanism further includes a fixing plate installed in the atomizing cavity, and the fixing plate is provided with a plurality of circles of connecting rings for connecting the upper ends of the filter shells, respectively; the fixing plate A through hole is provided on the upper part, and the through hole is located at a corresponding position in the connecting ring of the innermost ring.
  • each of the connecting rings is provided with a first thread
  • the upper end of each of the filter shells is provided with a second thread that is cooperatively connected to the corresponding first thread.
  • the innermost layer of the filter shell and the fixing plate are integrally formed.
  • the fixing plate is located at a position corresponding to a middle region of a side edge of the filter shell in the innermost layer.
  • the axial direction of the outlet of the gas nozzle is directed to the top of the upper end side wall of the oil nozzle.
  • the axial direction of the outlet of the gas nozzle is tilted upwards to point to the top of the upper end side wall of the oil nozzle.
  • the side wall of the upper end of the grease nipple is conical or arc-shaped convex upward.
  • a side of the atomizing cavity facing the gas nozzle is provided with a guide plate for guiding the airflow sprayed by the gas nozzle to flow upward, and the guide plate is inclined to the axial direction of the outlet of the gas nozzle.
  • the guide plate is fixedly connected to a side wall of the atomization cavity.
  • a return funnel is provided at the lower end of the atomizing cavity, and an outlet pipe is provided at the lower end of the return funnel, the outlet pipe projects into the connection port, and the oil nozzle is located at a position corresponding to the outlet pipe.
  • the guide plate is connected to the upper end of the return funnel.
  • a return funnel is provided at the lower end of the atomizing cavity, and an outlet pipe is provided at the lower end of the return funnel, the outlet pipe projects into the connection port, and the oil nozzle is located at a position corresponding to the outlet pipe.
  • connection sleeve is provided at the lower end of the grease nipple, and a suction tube is detachably inserted in the connection sleeve.
  • a connecting pipe is provided on the casing at a position corresponding to the air nozzle, and the connecting pipe is connected to the air pipe.
  • a sealing ring is further provided between the gas nozzle and the connecting pipe.
  • the casing includes a main casing mounted on the casing and an outer cover mounted on the main casing, the atomizing cavity is opened in the main casing, and the main casing is open. That is, the outer cover is covered on the main shell, the fog outlet is opened on the outer cover, and the connection port is opened on the bottom of the main shell.
  • connection port is provided with a threaded sleeve for connecting an essential oil bottle.
  • the beneficial effect of the essential oil return type atomizer provided by the present invention is that, compared with the prior art, the present invention provides a filtering and atomizing mechanism in the atomizing cavity; when the air nozzle sprays airflow, the essential oil is extracted through the oil nozzle, and When the airflow blows and atomizes to form a mixed airflow, when these airflows pass through the filter shells of the filter atomization mechanism in sequence, the essential oil droplets in the airflow will be blocked by the filter shells and recovered, reducing the waste of essential oil, and the atomized essential oil gas will Through the through holes of each filter shell to spray out; in addition, when the essential oil droplets in the air flow are located at each through hole, due to the pressure difference on the two sides of the filter shell, an air flow will be formed in the through hole, then the essential oil at the through hole The droplets will be atomized again by the airflow, and the atomization performance is improved.
  • FIG. 1 is a schematic cross-sectional structure diagram of an essential oil reflux type atomizer provided in Embodiment 1 of the present invention
  • FIG. 2 is an enlarged structure diagram of the gas nozzle and the oil nozzle in the essential oil return type atomizer of FIG. 1;
  • FIG. 2 is an enlarged structure diagram of the gas nozzle and the oil nozzle in the essential oil return type atomizer of FIG. 1;
  • FIG. 3 is an enlarged schematic structural view of a filtering and atomizing mechanism part of the essential oil reflux type atomizer of FIG. 1.
  • Embodiment 4 is a schematic cross-sectional structure diagram of an essential oil reflux type atomizer provided in Embodiment 2 of the present invention.
  • FIG. 5 is an enlarged structure diagram of a gas nozzle and an oil nozzle in the essential oil return type atomizer of FIG. 4.
  • each figure in the figure is mainly marked with:
  • 21-air pump 22-air pipe; 23-air nozzle; 24-oil nozzle; 241-connecting sleeve; 243-suction tube;
  • 30-shell 31-main shell; 310-atomizing cavity; 311-connecting port; 32-outer cover; 321-atomizing port; 33-return funnel; 331-outlet pipe; 332-guide plate; 34-thread set;
  • 40-filter atomizing mechanism 41-filter shell; 41a-inner filter shell; 41b-outer filter shell; 411-through hole; 42-fixing plate; 421-connecting ring; 422-fixing ring;
  • 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.
  • the meaning of “plurality” is two or more, unless specifically defined otherwise.
  • the meaning of “several” is one or more, unless specifically defined otherwise.
  • the essential oil return type atomizer includes a casing 10, a casing 30, an air pump 21, an air pipe 22, an air nozzle 23, an oil nozzle 24, and a filtering atomizing mechanism 40.
  • the casing 30 is provided with an atomizing cavity 310.
  • the casing 30 is provided with an outlet 321 for communicating with the atomizing cavity 310.
  • the lower end of the casing 30 is provided with a connection port 311 for connecting the essential oil bottle 60.
  • the casing 30 is installed on the casing 10, and the air pump 21 is installed in the casing 10.
  • the casing 10 supports and protects the air pump 21.
  • the oil nozzle 24 is located at the corresponding position of the connection port 311, so that when the connection port 311 is connected to the essential oil bottle 60, the oil nozzle 24 can extract the essential oil from the essential oil bottle 60, and the upper end of the oil nozzle 24 extends into the atomizing chamber 310, and the outlet 231 of the gas nozzle 23 It is located at the upper end of the oil nozzle 24; therefore, when the air pump 21 generates high-pressure gas and ejects from the gas nozzle 23, a negative pressure is formed at the upper end of the oil nozzle 24 to extract the essential oil from the essential oil bottle 60 through the oil nozzle 24, The extracted essential oil droplets will be dispersed by the high-speed airflow sprayed from the gas nozzle 23 to be atomized to form a mixed airflow, and at the same time, the pressure in the atomization chamber 310 will be increased; and because the connection port 311 is
  • the filtering and atomizing mechanism 40 is placed in the atomizing cavity 310, and the filtering and atomizing mechanism 40 is installed in the casing 30 to support the filtering and atomizing mechanism 40 through the casing 30.
  • the filtering and atomizing mechanism 40 is used for atomizing and filtering the essential oil droplets in the airflow flowing from the atomizing chamber 310 to the mist outlet 321, that is, when the mixed airflow in the atomizing chamber 310 flows toward the mist outlet 321, it needs to pass through the filter mist.
  • the atomizing mechanism 40 the essential oil droplets in the mixed air flow will be blocked and filtered by the filtering and atomizing mechanism 40, and then recovered, reducing the waste of essential oil; and the vaporized essential oil gas will pass through the filtering and atomizing mechanism 40 and be sprayed out of the mist outlet 321 .
  • the filtering and atomizing mechanism 40 includes a plurality of filter shells 41. When the airflow in the atomizing chamber 310 flows to the mist outlet 321, it will pass through each of the filter shells 41, and the lower end of each filter shell 41 is provided with a plurality of oil droplets for filtering essential oil in the air stream.
  • the through-holes 411 when the airflow passes through each of the filter shells 41 in sequence, the essential oil droplets in the airflow are filtered by each of the filter shells 41 and collected and recovered; the atomized essential oil gas will pass through the through-holes 411 of each filter shell 41; and The pressure difference between the two sides of the filter shell 41 will form airflow in each through hole 411, and the essential oil droplets at the through hole 411 will be atomized again by the airflow, thereby improving the atomization performance. And providing a plurality of filter shells 41 can better filter large essential oil droplets, further reducing waste and improving the filtering effect.
  • the essential oil return type atomizer provided by the present invention is provided with a filtering and atomizing mechanism 40 in the atomizing cavity 310; when the air nozzle 23 sprays airflow, the essential oil is extracted through the oil nozzle 24, and When the airflow blows and atomizes to form a mixed airflow, when these airflows pass through the filter shells 41 of the filter atomizing mechanism 40 in sequence, the essential oil droplets in the airflow will be blocked by the filter shells 41 and recovered, reducing the waste of essential oils, and the atomized The essential oil gas will be ejected through the through holes 411 of the filter shells 41.
  • the droplets of the essential oil in the air flow are located at the through holes 411, due to the pressure difference between the two sides of the filter shell 41, they will form in the through holes 411 Air flow, the essential oil droplets at the through hole 411 will be atomized again by the air flow, thereby improving the atomization performance.
  • each of the filter shells 41 is cylindrical, and the diameters of several filter shells 41 are sequentially reduced, and some of the filters are sequentially reduced.
  • the shell 41 is coaxially arranged, and in two adjacent filter shells 41: the inner filter shell 41 is inserted into the outer filter shell 41, and the inner cavity of the innermost filter shell 41a is in communication with the mist outlet 321.
  • the filter shell 41 of this structure is simple to manufacture and easy to install, and the filter shell 41 enters the atomizing chamber 310, which can facilitate the gas in the atomizing chamber 310 to enter the filter shell 41 to be filtered and atomized.
  • the filter shell 41 is provided in a cylindrical shape, and a through hole 411 is opened at the lower end of the filter shell 41.
  • the inner layer filter shell 41a is inserted into the outer layer filter shell 41b.
  • the airflow enters the outer layer filter shell from the through hole 411 During 41b, it will rotate or turbulently flow along the outer side of the inner filter shell 41a, so that the fully atomized essential oil will spread rapidly, and the essential oil droplets will impact the outer surface of the inner filter shell 41a due to inertia. It is blocked and filtered to improve the filtering effect.
  • the essential oil collected in the filter shell 41 can be better discharged from the lower end during the gap time of the essential oil injection, and can be better recovered.
  • several plates with openings can also be used to filter the essential oil.
  • the filter shell 41 may also have a bowl-shaped structure with a middle recessed downward.
  • the inner filter shell 41a is inserted into the outer filter shell 41b.
  • the number of the filter shells 41 may be three, four, or the like.
  • the filtering atomizing mechanism 40 further includes a fixing plate 42.
  • the fixing plate 42 is provided with several circles of connecting rings 421 for connecting the upper ends of the filter shells 41 respectively. By providing the connecting rings 421, the filter shells 41 and The fixing plates 42 are connected to each other, and the filter shells 41 are covered by the fixing plates 42, and it is also convenient to support the filter shells 41.
  • the fixing plate 42 is installed in the atomizing cavity 310 so that each filter shell 41 is installed in the atomizing cavity 310.
  • the fixing plate 42 is provided with a through hole, and the through hole is located at the corresponding position in the innermost ring connecting ring 421, so that when the innermost filter shell 41a is installed on the fixed plate 42, the through hole and the innermost filter shell 41a can be made.
  • the middle part is connected with each other, so that the innermost filter case 41a is connected with the mist outlet 321.
  • the fixing plate 42 is further provided with a fixing ring 422, and each connection ring 421 is located in the fixing ring 422.
  • the fixing ring 422 is fixedly connected to the inner wall of the atomizing chamber 310.
  • a fixing ring 422 is provided to facilitate the installation of the fixing plate 42 in the atomizing cavity 310, which is convenient for installation and fixing.
  • a mounting thread may be provided on the fixing ring 422, and a matching thread may be provided on an inner wall of the atomizing chamber 310 to connect the fixing ring 422 with the inner wall of the atomizing chamber 310 through a threaded connection.
  • each connection ring 421 is provided with a first thread
  • the upper end of each filter shell 41 is provided with a second thread which is mated with the corresponding first thread.
  • the innermost filter shell 41a and the fixing plate 42 are integrally formed.
  • the fixing plate 42 is integrally formed with the innermost filter shell 41a to ensure the connection strength between the innermost filter shell 41a and the fixed plate 42.
  • the innermost connection ring 421 can be used as the innermost filter shell 41a. Side walls to reduce footprint.
  • the fixing plate 42 and the innermost filter shell 41a may also be manufactured in two parts.
  • the fixing plate 42 is located at a position corresponding to the middle region on the side of the innermost filter shell 41a. With this structure, the upper end of the innermost filter case 41a can protrude from the fixing plate 42, so as to facilitate the connection between the innermost filter case 41a and the mist outlet 321.
  • the bottom plate 412 of each filter case 41 is an arc surface with a middle recessed upward, and since each The lower end of the filter case 41 is provided with a through hole 411, so that the bottom plate 412 of each filter case 41 is provided with an arc-shaped surface, so that the essential oil liquid collected in the filter case 41 can better flow to the through holes 411 for discharge.
  • each filter case 41 a lower end of a side surface of each filter case 41 is provided with a through hole 411.
  • the through holes 411 of each filter case 41 are disposed at the lower end of the side surface of the filter case 41, which is convenient for processing and manufacturing, and also facilitates filtering and recovery of essential oil droplets.
  • the bottom plate 412 of the filter case 41 is a curved surface recessed upward, the curved surface can also serve as a guide to guide the gas flowing from the through holes 411 into the filter case 41.
  • the through holes 411 on two adjacent filter cases 41 are staggered from each other.
  • the through holes 411 of the two adjacent filter shells 41 are staggered from each other. After the airflow passes through the through holes 411 on the outer filter shell 41b, the larger essential oil droplets will be blown onto the side walls of the inner filter shell 41a. It is blocked and collected by the inner filter shell 41a, so as to perform better filtering.
  • the bottom plate of the inner filter shell 41a and the bottom plate 412 of the outer filter shell 41b are spaced apart, so that the airflow between the inner filter shell 41a and the outer filter shell 41b can be increased.
  • the flow in the medium can better filter and recover the essential oil droplets.
  • the axial direction of the outlet 231 of the gas nozzle 23 is directed to the top of the upper side wall 242 of the oil nozzle 24, Therefore, when the airflow is ejected from the outlet 231 of the gas nozzle 23, the airflow can cover the upper end of the oil nozzle 24 to better form a vacuum at the upper end of the oil nozzle 24.
  • the top of the upper side wall 242 of the oil nozzle 24 can change the air flow of the gas nozzle 23
  • the flow direction of the oil can further atomize the essential oil droplets extracted by the nozzle 24.
  • the axial direction of the outlet 231 of the gas nozzle 23 is tilted upward and pointed towards the top of the upper end side wall 242 of the oil nozzle 24.
  • This structure can prevent the airflow sprayed from the gas nozzle 23 from blowing into the nozzle at the upper end of the oil nozzle 24, so that the essential oil can be better extracted, and the extracted essential oil can be blown out obliquely upward, so that the essential oil can be better atomized.
  • the upper side wall 242 of the nozzle 24 is conical, so that the upper side wall 242 of the nozzle 24 can guide the airflow ejected from the air nozzle 23 upward, so that the airflow can better direct the oil nozzle 24 extracted essential oils are atomized.
  • the side wall 242 of the upper end of the grease nipple 24 may also be arc-shaped convex upward.
  • the lower end of the atomization cavity 310 is provided with a return funnel 33, and the lower end of the return funnel 33 is provided with an outlet pipe 331.
  • the outlet pipe 331 extends into the connection port 311, and the grease nipple 24 is located at a position corresponding to the outlet pipe 331.
  • a return funnel 33 is set at the lower end of the atomizing chamber 310, and the outlet pipe 331 of the return funnel 33 is extended into the connection port 311, and the oil nozzle 24 is located in the outlet pipe 331.
  • the upper end of the return funnel 33 is connected to the inner wall of the atomizing chamber 310, so that the essential oil liquid accumulated on the inner wall of the atomizing chamber 310 can be better returned to the essential oil bottle 60.
  • the lower end of the oil nozzle 24 is provided with a connection sleeve 241, and a suction tube 243 is detachably inserted in the connection sleeve 241.
  • a suction pipe 243 is connected to the lower end of the nozzle 24, and the suction pipe 243 of different length can be replaced according to different essential oil bottles 60 to improve the adaptability.
  • connection pipe 12 is provided on the casing 10 at a position corresponding to the air nozzle 23, and the connection pipe 12 and the air pipe 22 are connected.
  • a connecting pipe 12 is provided in the casing 10 so that the connecting pipe 12 can be better connected to the air pipe 22 and the air pipe 22 can be fixed.
  • a sealing ring 13 is further provided between the gas nozzle 23 and the connecting pipe 12 to improve the sealing performance, so that all the gas in the gas pipe 22 can flow to the gas nozzle 23.
  • the structure can facilitate the processing and connection of the casing 30 and the casing 10.
  • the air nozzle 23 may also be directly connected to the air pipe 22. In some other embodiments, the air nozzle 23 may also be directly connected to the connecting pipe 12.
  • the casing 30 includes a main casing 31 and an outer cover 32, and the main casing 31 is mounted on the casing. 10; the outer cover 32 is installed on the main casing 31, and an atomizing cavity 310 is opened in the main casing 31, the main casing 31 is open, the outer cover 32 is covered on the main casing 31, and the fog outlet 321 is opened outside On the cover 32, a connection port 311 is opened at the bottom of the main case 31.
  • This structure facilitates the processing and manufacturing of the casing 30, and also facilitates the assembly of various components, such as the installation and fixation of the oil nozzle 24, the gas nozzle 23, and the filtering and atomizing mechanism 40.
  • connection port 311 is provided with a threaded sleeve 34 for connecting the essential oil bottle 60.
  • a threaded sleeve 34 is provided in the connection port 311 to facilitate installation or replacement of the essential oil bottle 60.
  • FIG. 1 As a specific implementation manner of the essential oil return type atomizer provided by the present invention, a support frame 11 is provided in the casing 10, an air pump 21 is installed in the support frame 11, and the support frame 11 A plurality of heat dissipation channels 111 are provided therein, so that the air pump 21 can be better fixed and the heat dissipation efficiency of the air pump 21 can be improved.
  • the air pump 21 may be a diaphragm pump.
  • the air pump 21 may also use other types of pump bodies, such as a centrifugal pump, a piston pump, and the like.
  • a guide plate 332 is provided on the side of the atomizing chamber 310 facing the gas nozzle 23.
  • the guide plate 332 is inclined to the axial direction of the outlet 231 of the gas nozzle 23.
  • the guide plate 332 is fixedly connected to the side wall of the atomizing chamber 310. The airflow for guiding the air nozzle 23 flows upward.
  • the mixed airflow will flow toward the guide plate 332, and the guide plate 332 is provided to better guide the mixed airflow to the filtering and atomizing mechanism 40, which is convenient
  • the filter shell 41 filters the mixed air stream; at the same time, the guide plate 332 can also absorb and collect some essential oil droplets in the mixed air stream, reducing these essential oil droplets from splashing onto the filter shell 41, and blocking the through hole 411 on the filter shell 41 to avoid Affects the filtering effect.
  • a lower end of the atomizing cavity 310 is provided with a return funnel 33, and a lower end of the return funnel 33 is provided.
  • the outlet pipe 331, the outlet pipe 331 extends into the connection port 311, and the grease nipple 24 is located at a position corresponding to the outlet pipe 331.
  • a return funnel 33 is set at the lower end of the atomizing chamber 310, and the outlet pipe 331 of the return funnel 33 is extended into the connection port 311, and the oil nozzle 24 is located in the outlet pipe 331.
  • the guide plate 332 is connected to the upper end of the return funnel 33. This structure can make the essential oil droplets collected on the guide plate 332 flow back better, and improve the efficiency of the backflow. Furthermore, the guide plate 332 can be integrally formed with the reflow funnel 33 to facilitate processing and manufacture and also facilitate installation and fixing.
  • the cross section of the lead plate in the height direction may be linear. In still other embodiments, the cross section of the lead plate in the height direction may also be curved. In still other embodiments, the guide plate 332 may be a flat plate or an arc plate.
  • the included angle between the tangent line at the intersection of the extension line on the guide plate 332 axis of the air nozzle 23 exit 231 and the guide plate 332 and the extension line is 15-35 degrees. In this way, the guide plate 332 can better guide the air flow to the guide plate 332 and reduce the impact force with the air flow to the guide plate 332.
  • the other structures of the essential oil reflux type atomizer in this embodiment are the same as the other structures of the essential oil reflux type atomizer in Embodiment 1, and details are not described herein again.

Abstract

一种精油回流式雾化器，包括机壳（10）、具有雾化腔（310）的壳体（30）、气泵（21）、气管（22）、气嘴（23）和油嘴（24），壳体（30）中还安装有过滤雾化机构（40），过滤雾化机构（40）包括若干过滤壳（41），各个过滤壳（41）的下端开设有若干通孔（411）。当气嘴（23）喷出气流并通过油嘴（24）抽出精油液滴，精油液滴被气流吹散雾化形成混合气流。混合气流依次经过各过滤壳（41）时，气流中的精油液滴会被各个过滤壳（41）阻挡回收，雾化的精油气流通过各个通孔（411）喷出；而通孔（411）处的精油液滴会被通过的气流再次雾化，从而提高了雾化性能。

Description

精油回流式雾化器 技术领域
本发明属于雾化器领域，更具体地说，是涉及一种精油回流式雾化器。
 背景技术
在生活中往往会用到精油，以改善周围环境或进行医疗；如进行杀菌、消毒、改变环境气味等。在使用精油时，会使用到雾化器，以对精油进行雾化，便于人员吸收，或方便扩散到环境中。当前的精油雾化器一般是通过气嘴喷出高速气流，通过虹吸原理，吸出精油瓶中精油，并被高速气流吹散，以实现雾化。然而这种雾化方式导致雾化的气体中精油液滴较大，雾化性能较差，这些液滴被喷出时会产生大量精油浪费。
 技术问题
本发明的目的在于提供一种精油回流式雾化器，以解决现有技术中存在的精油雾化性能较差且会产生大量精油浪费的问题。
 技术解决方案
为实现上述目的，本发明采用的技术方案是：提供一种精油回流式雾化器，包括机壳、具有雾化腔的壳体、安装于所述机壳中的气泵、安装于所述气泵上的气管、与所述气管相连的气嘴和用于抽取精油瓶中精油的油嘴，所述壳体安装于所述机壳上，所述油嘴的上端伸入所述雾化腔中，所述气嘴的出口位于所述油嘴的上端处，所述壳体上开设有连通所述雾化腔的出雾口，所述壳体的下端设有用于配合连接所述精油瓶的连接口，所述油嘴位于所述连接口对应的位置，所述壳体中还安装有用于雾化并过滤所述雾化腔流至所述出雾口的气流中精油液滴的过滤雾化机构，所述过滤雾化机构置于所述雾化腔中；所述过滤雾化机构包括若干供所述气流依次通过的过滤壳，各所述过滤壳的下端开设有若干用于过滤所述气流中精油液滴的通孔。
进一步地，各所述过滤壳呈圆筒状，若干所述过滤壳直径依次缩小，若干所述过滤壳同轴设置，且相邻两所述过滤壳中：内层所述过滤壳插入外层所述过滤壳中，最内层所述过滤壳的内腔与所述出雾口相连通。
进一步地，各所述过滤壳的底板呈中部向上凹陷的弧形面。
进一步地，各所述过滤壳侧面的下端开设有所述通孔。
进一步地，相邻两所述过滤壳上的所述通孔相互错开。
进一步地，所述过滤雾化机构还包括安装于所述雾化腔中的固定板，所述固定板上设有若干圈分别用于连接各所述过滤壳上端的连接环；所述固定板上开设有通过孔，所述通过孔位于最内圈所述连接环中对应的位置。
进一步地，各所述连接环上设置有第一螺纹，各所述过滤壳上端设有配合与相应所述第一螺纹相连的第二螺纹。
进一步地，最内层所述过滤壳与所述固定板是一体成型设置。
进一步地，所述固定板位于最内层所述过滤壳侧边中部区域对应的位置。
进一步地，所述气嘴出口的轴向指向所述油嘴的上端侧壁的顶部。
进一步地，所述气嘴出口的轴向向上倾斜指向所述油嘴的上端侧壁的顶部。
进一步地，所述油嘴的上端的侧壁呈圆锥状或向上凸起的圆弧状。
进一步地，所述雾化腔中正对所述气嘴的一侧设有用于引导所述气嘴喷射的气流向上流动的引导板，所述引导板倾斜于所述气嘴出口的轴向，所述引导板与所述雾化腔的侧壁固定相连。
进一步地，所述雾化腔的下端设有回流漏斗，所述回流漏斗的下端设有出口管，所述出口管伸入所述连接口中，所述油嘴位于所述出口管对应的位置，所述引导板与所述回流漏斗的上端相连。
进一步地，所述雾化腔的下端设有回流漏斗，所述回流漏斗的下端设有出口管，所述出口管伸入所述连接口中，所述油嘴位于所述出口管对应的位置。
进一步地，所述油嘴的下端设有连接套，所述连接套中可拆卸插装有吸管。
进一步地，所述机壳上对应于所述气嘴的位置设有连接管，所述连接管与所述气管相连。
进一步地，所述气嘴与所述连接管之间还设有密封圈。
进一步地，所述壳体包括安装于所述机壳上的主壳和安装于所述主壳上的外盖，所述主壳中开设有所述雾化腔，所述主壳呈敞口状，所述外盖盖于所述主壳上，所述出雾口开设于所述外盖上，所述连接口开设于所述主壳的底部。
进一步地，所述连接口中设有用于连接精油瓶的螺纹套。
 有益效果
本发明提供的精油回流式雾化器的有益效果在于：与现有技术相比，本发明通过在雾化腔中设置过滤雾化机构；当气嘴喷出气流时，通过油嘴抽出精油，并被气流吹散雾化形成混合气流，这些气流依次经过过滤雾化机构的各过滤壳时，气流中的精油液滴会被各过滤壳阻挡而回收，减少精油浪费，而雾化的精油气体会通过各过滤壳的通孔，以喷出；另外当气流中的精油液滴处于各通孔处时，由于过滤壳两侧的压差，会在通孔中形成气流，则通孔处的精油液滴会被该气流再次雾化，而提高雾化性能。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例一提供的精油回流式雾化器的剖视结构示意图；
图2为图1的精油回流式雾化器中气嘴与油嘴部分的放大结构示意图；
图3为图1的精油回流式雾化器中过滤雾化机构部分的放大结构示意图。
图4为本发明实施例二提供的精油回流式雾化器的剖视结构示意图；
图5为图4的精油回流式雾化器中气嘴与油嘴部分的放大结构示意图。
其中，图中各附图主要标记：
10-机壳；11-支撑架；111-散热通道；12-连接管；13-密封圈；
21-气泵；22-气管；23-气嘴；24-油嘴；241-连接套；243-吸管；
30-壳体；31-主壳；310-雾化腔；311-连接口；32-外盖；321-出雾口；33-回流漏斗；331-出口管；332-引导板；34-螺纹套；
40-过滤雾化机构；41-过滤壳；41a-内层过滤壳；41b-外层过滤壳；411-通孔；42-固定板；421-连接环；422-固定环；
60-精油瓶。
 本发明的实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者间接在该另一个元件上。当一个元件被称为是“连接于”另一个元件，它可以是直接连接到另一个元件或间接连接至该另一个元件上。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。“若干”的含义是一个或一个以上，除非另有明确具体的限定。
在本发明的描述中，需要理解的是，术语“中心”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
实施例一：
请一并参阅图1至图3，现对本发明提供的精油回流式雾化器进行说明。所述精油回流式雾化器，包括机壳10、壳体30、气泵21、气管22、气嘴23、油嘴24和过滤雾化机构40。壳体30中设有雾化腔310，壳体30上开设有连通雾化腔310的出雾口321，壳体30的下端设有连接口311，连接口311用于连接精油瓶60。壳体30安装在机壳10上，气泵21安装在机壳10中，通过机壳10来支撑与保护气泵21。气管22的一端与气泵21相连，气管22的另一端与气嘴23相连。油嘴24位于连接口311对应的位置，以便连接口311连接精油瓶60时，油嘴24可以从精油瓶60中抽取精油，且油嘴24的上端伸入雾化腔310中，气嘴23的出口231位于油嘴24的上端处；从而当气泵21产生高压气体，并从气嘴23中喷出时，会在油嘴24上端的管口处形成负压，以通过油嘴24从精油瓶60中抽取精油，抽取的精油液滴会被气嘴23喷出的高速气流吹散而雾化形成混合气流，同时会增大雾化腔310中压力；而由于连接口311与精油瓶60相连，则雾化腔310中气流会注射出雾口321，以喷出。过滤雾化机构40置于雾化腔310中，并且过滤雾化机构40安装在壳体30中，以通过壳体30来支撑住过滤雾化机构40。过滤雾化机构40用于雾化并过滤雾化腔310流至出雾口321的气流中精油液滴，即当雾化腔310中的混合气流朝向出雾口321流动时，需要经过过滤雾化机构40，则混合气流中的精油液滴会被过滤雾化机构40阻挡过滤，进而回收，减少精油浪费；而气化的精油气体会穿过过滤雾化机构40至出雾口321喷出。过滤雾化机构40包括若干过滤壳41，当雾化腔310中气流流向出雾口321时，会依次经过各过滤壳41，各过滤壳41的下端开设有若干用于过滤气流中精油液滴的通孔411；从而气流依次经过各过滤壳41时，气流中的精油液滴会被各过滤壳41过滤，聚集回收；雾化的精油气体会通过各过滤壳41的通孔411；并且由于过滤壳41两侧的压差，会在各通孔411中形成气流，则通孔411处的精油液滴会被该气流再次雾化，而提高雾化性能。而设置若干过滤壳41可以更好的将大的精油液滴过滤，进一步减少浪费，提高过滤效果。
本发明提供的精油回流式雾化器，与现有技术相比，本发明通过在雾化腔310中设置过滤雾化机构40；当气嘴23喷出气流时，通过油嘴24抽出精油，并被气流吹散雾化形成混合气流，这些气流依次经过过滤雾化机构40的各过滤壳41时，气流中的精油液滴会被各过滤壳41阻挡而回收，减少精油浪费，而雾化的精油气体会通过各过滤壳41的通孔411，以喷出；另外当气流中的精油液滴处于各通孔411处时，由于过滤壳41两侧的压差，会在通孔411中形成气流，则通孔411处的精油液滴会被该气流再次雾化，而提高雾化性能。
进一步地，请一并参阅图1和图3，作为本发明提供的精油回流式雾化器的一种具体实施方式，各过滤壳41呈圆筒状，若干过滤壳41直径依次缩小，若干过滤壳41同轴设置，且相邻两过滤壳41中：内层过滤壳41插入外层过滤壳41中，最内层过滤壳41a的内腔与出雾口321相连通。该结构的过滤壳41，加工制作简单，方便安装，而过滤壳41进入雾化腔310中，可以方便雾化腔310中气体进入过滤壳41中，以被过滤及雾化。另外，将过滤壳41设置呈圆筒状，并在过滤壳41的下端开设通孔411，同时将内层过滤壳41a插入外层过滤壳41b中，当气流从通孔411进入外层过滤壳41b中时，会沿内层过滤壳41a的外侧旋转或紊流，从而雾化充分的精油会快速扩散，而精油液滴在惯性作用来会冲击到内层过滤壳41a的外而面上，而被阻挡、过滤，提高过滤效果。并且该结构在喷射精油的间隙时间中，过滤壳41中收集的精油可以更好的从下端排出，更好的回收。在其它一些实施例中，也可以使用若干开设有开孔的板体来对精油进行过滤。在还有一些实施例中，过滤壳41也可以呈中部向下凹陷的碗杯状结构。
本实施例中，过滤壳41为两个，内层过滤壳41a插入外层过滤壳41b中。在其它实施例中，过滤壳41也可以为三个、四个等等数量。
进一步地，过滤雾化机构40还包括固定板42，固定板42上设有若干圈分别用于连接各过滤壳41上端的连接环421；通过设置连接环421，可以方便将各过滤壳41与固定板42相连，进而通过固定板42盖于各过滤壳41上，同时也便于支撑各过滤壳41。固定板42安装雾化腔310中，以便将各过滤壳41安装在雾化腔310中。固定板42上开设有通过孔，通过孔位于最内圈连接环421中对应的位置，从而当最内层过滤壳41a安装在固定板42上后，可以使通过孔与最内层过滤壳41a的中部相连通，进而使最内层过滤壳41a与出雾口321相连通。
进一步地，固定板42上还设有固定环422，各连接环421位于固定环422中。固定环422与雾化腔310的内壁固定相连。设置固定环422，以方便将固定板42安装在雾化腔310中，安装固定方便。
更进一步地，可以在固定环422上设置安装螺纹，而在雾化腔310的内壁上设置配合螺纹，以通过螺纹连接将固定环422与雾化腔310的内壁相连。
进一步地，各连接环421上设置有第一螺纹，各过滤壳41上端设有配合与相应第一螺纹相连的第二螺纹。该结构方便加工，同时可以方便将各过滤壳41与对应的连接环421固定相连，组装方便。
进一步地，请一并参阅图1和图3，作为本发明提供的精油回流式雾化器的一种具体实施方式，最内层过滤壳41a与固定板42是一体成型设置。将固定板42与最内层过滤壳41a一体成型，可以保证最内层过滤壳41a与固定板42的连接强度；该结构中，最内圈的连接环421可以作为最内层过滤壳41a的侧壁，以减小占用空间。当然在其它一些实施例中，固定板42与最内层过滤壳41a也可以分为两个部件制作。
更进一步地，固定板42位于最内层过滤壳41a侧边中部区域对应的位置。该结构可以使最内层过滤壳41a的上端凸出固定板42，以方便将最内层过滤壳41a与出雾口321相连。
进一步地，请一并参阅图1和图3，作为本发明提供的精油回流式雾化器的一种具体实施方式，各过滤壳41的底板412呈中部向上凹陷的弧形面，并且由于各过滤壳41的下端开设通孔411，从而将各过滤壳41的底板412设置呈弧形面，可以使过滤壳41中收集的精油液体更好的流向各通孔411，以便排出。
进一步地，各过滤壳41侧面的下端开设有通孔411。将各过滤壳41的通孔411设置在过滤壳41的侧面的下端，加工制作方便，另外也方便精油液滴过滤与回收。更进一步地，当过滤壳41的底板412呈向上凹陷的弧形面时，该弧形面还可以起到引导作用，以引导从各通孔411流至该过滤壳41中的气体。
进一步地，相邻两过滤壳41上的通孔411相互错开。将相邻两个过滤壳41的通孔411相互错开，当气流通过外层过滤壳41b上的通孔411后，较大的精油液滴会被吹到内层过滤壳41a的侧壁上，而被内层过滤壳41a阻挡与收集，从而更好的进行过滤。
进一步地，相邻两个过滤壳41中：内层过滤壳41a的底板与外层过滤壳41b的底板412间隔设置，从而可以增加气流在内层过滤壳41a与外层过滤壳41b之间间隙中的流动，进而可以更好的过滤回收精油液滴。
进一步地，请一并参阅图1和图2，作为本发明提供的精油回流式雾化器的一种具体实施方式，气嘴23出口231的轴向指向油嘴24的上端侧壁242的顶部，从而在气嘴23出口231喷出气流时，气流可以覆盖油嘴24的上端，以更好的在油嘴24的上端形成真空，同时油嘴24的上端侧壁242的顶部可以改变气嘴23喷出气流的流向，进而可以更好的将油嘴24抽出的精油液滴雾化。
更进一步地，气嘴23出口231的轴向向上倾斜指向油嘴24的上端侧壁242的顶部。该结构可以避免气嘴23喷出的气流吹入油嘴24上端的管口中，进而可以更好的抽出精油，并且可以将抽出精油倾斜向上吹出，进而可以更好的将精油雾化。
进一步地，本实施例中，油嘴24的上端的侧壁242呈圆锥状，从而油嘴24的上端的侧壁242可以对气嘴23喷出的气流向上进行导向，以便气流可以更好的将油嘴24抽出的精油雾化。在其它一些实施例中，油嘴24的上端的侧壁242也可以呈向上凸起的圆弧状。
进一步地，请一并参阅图1，作为本发明提供的精油回流式雾化器的一种具体实施方式，雾化腔310的下端设有回流漏斗33，回流漏斗33的下端设有出口管331，出口管331伸入连接口311中，油嘴24位于出口管331对应的位置。在雾化腔310的下端设置回流漏斗33，并将回流漏斗33的出口管331伸入连接口311中，而油嘴24位于出口管331中，则当连接口311与精油瓶60相连时，回流漏斗33的出口管331伸入精油瓶60口中，以便雾化腔310中精油液可以更好的回流到精油瓶60中。
进一步地，本实施例中，回流漏斗33的上端与雾化腔310的内壁相连，从而可以使雾化腔310内壁上聚集的精油液可以更好的回流至精油瓶60中。
进一步地，请一并参阅图1，作为本发明提供的精油回流式雾化器的一种具体实施方式，油嘴24的下端设有连接套241，连接套241中可拆卸插装有吸管243。在油嘴24下端连接吸管243，可以根据不同的精油瓶60来更换不同长度的吸管243，以提高适应性。
进一步地，请一并参阅图1，作为本发明提供的精油回流式雾化器的一种具体实施方式，机壳10上对应于气嘴23的位置设有连接管12，连接管12与气管22相连。在机壳10中设置连接管12，以便可以更好的与气管22相连，进而固定住气管22。
更进一步地，本实施例中，气嘴23与连接管12之间还设有密封圈13，从而提高密封性，使气管22中的气体可以全部流至气嘴23。并且该结构可以方便壳体30与机壳10的加工制作与连接。在其它一些实施例中，也可以将气嘴23直接与气管22相连。还有一些实施例中，也可以将气嘴23直接与连接管12相连。
进一步地，请一并参阅图1和图3，作为本发明提供的精油回流式雾化器的一种具体实施方式，壳体30包括主壳31和外盖32，主壳31安装于机壳10上；外盖32安装于主壳31上，并且主壳31中开设有雾化腔310，主壳31呈敞口状，外盖32盖于主壳31上，出雾口321开设于外盖32上，连接口311开设于主壳31的底部。该结构方便壳体30的加工制作，同时也方便各部件的组装，如油嘴24、气嘴23及过滤雾化机构40的安装固定。
进一步地，请一并参阅图1和图3，作为本发明提供的精油回流式雾化器的一种具体实施方式，连接口311中设有用于连接精油瓶60的螺纹套34。在连接口311中设置螺纹套34，以方便安装或更换精油瓶60。
进一步地，请一并参阅图1，作为本发明提供的精油回流式雾化器的一种具体实施方式，机壳10中设有支撑架11，气泵21安装于支撑架11中，支撑架11中设有若干散热通道111，从而可以更好的固定住气泵21，并提高气泵21的散热效率。
进一步地，气泵21可以使用隔膜泵。当然，在其它实施例中，气泵21也可以使用其它形式的泵体，如离心泵、活塞泵等等。
实施例二：
请参阅图4和图5，本实施例的精油回流式雾化器与实施例一的精油回流式雾化器的区别为：
雾化腔310中正对气嘴23的一侧设有引导板332，引导板332倾斜于气嘴23出口231的轴向，引导板332与雾化腔310的侧壁固定相连，该引导板332用于引导气嘴23喷射的气流向上流动。当气嘴23喷出气流，并抽取精油后形成混合气流后，该混合气流会朝向引导板332流动，而设置引导板332，可以更好的将该混合气流引导向过滤雾化机构40，方便过滤壳41对混合气流进行过滤；同时引导板332还可以吸附并聚集混合气流中部分精油液滴，减少这些精油液滴飞溅到过滤壳41上，而堵塞过滤壳41上的通孔411，避免影响过滤效果。
进一步地，请一并参阅图4和图5，作为本发明提供的精油回流式雾化器的一种具体实施方式，雾化腔310的下端设有回流漏斗33，回流漏斗33的下端设有出口管331，出口管331伸入连接口311中，油嘴24位于出口管331对应的位置。在雾化腔310的下端设置回流漏斗33，并将回流漏斗33的出口管331伸入连接口311中，而油嘴24位于出口管331中，则当连接口311与精油瓶60相连时，回流漏斗33的出口管331伸入精油瓶60口中，以便雾化腔310中精油液可以更好的回流到精油瓶60中。
进一步地，引导板332与回流漏斗33的上端相连。该结构可以使引导板332上聚集的精油液滴更好的回流，提高回流的效率。更进一步地，引导板332可以与回流漏斗33一体成型，以方便加工制作，同时也方便安装固定。
进一步地，一些实施例中，引板板于高度方向的截面可以呈直线状。还有一些实施例中，引板板于高度方向的截面也可以曲线状。还有一些实施例中，引导板332可以呈平板状或弧形板。
进一步地，引导板332上于气嘴23出口231轴线的延长线与该引导板332的交点处的切线与该延长线的夹角范围为15-35度。以便引导板332可以更好的引导流向该引导板332的气流，减小与流向该引导板332气流的冲击力。
本实施例的精油回流式雾化器的其它结构与实施例一的精油回流式雾化器的其它结构相同，在此不再赘述。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (20)

  1. 精油回流式雾化器，包括机壳、具有雾化腔的壳体、安装于所述机壳中的气泵、安装于所述气泵上的气管、与所述气管相连的气嘴和用于抽取精油瓶中精油的油嘴，所述壳体安装于所述机壳上，所述油嘴的上端伸入所述雾化腔中，所述气嘴的出口位于所述油嘴的上端处，所述壳体上开设有连通所述雾化腔的出雾口，其特征在于：所述壳体的下端设有用于配合连接所述精油瓶的连接口，所述油嘴位于所述连接口对应的位置，所述壳体中还安装有用于雾化并过滤所述雾化腔流至所述出雾口的气流中精油液滴的过滤雾化机构，所述过滤雾化机构置于所述雾化腔中；所述过滤雾化机构包括若干供所述气流依次通过的过滤壳，各所述过滤壳的下端开设有若干用于过滤所述气流中精油液滴的通孔。
  2. 如权利要求1所述的精油回流式雾化器，其特征在于：各所述过滤壳呈圆筒状，若干所述过滤壳直径依次缩小，若干所述过滤壳同轴设置，且相邻两所述过滤壳中：内层所述过滤壳插入外层所述过滤壳中，最内层所述过滤壳的内腔与所述出雾口相连通。
  3. 如权利要求2所述的精油回流式雾化器，其特征在于：各所述过滤壳的底板呈中部向上凹陷的弧形面。
  4. 如权利要求3所述的精油回流式雾化器，其特征在于：各所述过滤壳侧面的下端开设有所述通孔。
  5. 如权利要求4所述的精油回流式雾化器，其特征在于：相邻两所述过滤壳上的所述通孔相互错开。
  6. 如权利要求2所述的精油回流式雾化器，其特征在于：所述过滤雾化机构还包括安装于所述雾化腔中的固定板，所述固定板上设有若干圈分别用于连接各所述过滤壳上端的连接环；所述固定板上开设有通过孔，所述通过孔位于最内圈所述连接环中对应的位置。
  7. 如权利要求6所述的精油回流式雾化器，其特征在于：各所述连接环上设置有第一螺纹，各所述过滤壳上端设有配合与相应所述第一螺纹相连的第二螺纹。
  8. 如权利要求6所述的精油回流式雾化器，其特征在于：最内层所述过滤壳与所述固定板是一体成型设置。
  9. 如权利要求8所述的精油回流式雾化器，其特征在于：所述固定板位于最内层所述过滤壳侧边中部区域对应的位置。
  10. 如权利要求1-9任一项所述的精油回流式雾化器，其特征在于：所述气嘴出口的轴向指向所述油嘴的上端侧壁的顶部。
  11. 如权利要求10所述的精油回流式雾化器，其特征在于：所述气嘴出口的轴向向上倾斜指向所述油嘴的上端侧壁的顶部。
  12. 如权利要求10所述的精油回流式雾化器，其特征在于：所述油嘴的上端的侧壁呈圆锥状或向上凸起的圆弧状。
  13. 如权利要求1-9任一项所述的精油回流式雾化器，其特征在于：所述雾化腔中正对所述气嘴的一侧设有用于引导所述气嘴喷射的气流向上流动的引导板，所述引导板倾斜于所述气嘴出口的轴向，所述引导板与所述雾化腔的侧壁固定相连。
  14. 如权利要求13所述的精油回流式雾化器，其特征在于：所述雾化腔的下端设有回流漏斗，所述回流漏斗的下端设有出口管，所述出口管伸入所述连接口中，所述油嘴位于所述出口管对应的位置，所述引导板与所述回流漏斗的上端相连。
  15. 如权利要求1-9任一项所述的精油回流式雾化器，其特征在于：所述雾化腔的下端设有回流漏斗，所述回流漏斗的下端设有出口管，所述出口管伸入所述连接口中，所述油嘴位于所述出口管对应的位置。
  16. 如权利要求1-9任一项所述的精油回流式雾化器，其特征在于：所述油嘴的下端设有连接套，所述连接套中可拆卸插装有吸管。
  17. 如权利要求1-9任一项所述的精油回流式雾化器，其特征在于：所述机壳上对应于所述气嘴的位置设有连接管，所述连接管与所述气管相连。
  18. 如权利要求17所述的精油回流式雾化器，其特征在于：所述气嘴与所述连接管之间还设有密封圈。
  19. 如权利要求1-9任一项所述的精油回流式雾化器，其特征在于：所述壳体包括安装于所述机壳上的主壳和安装于所述主壳上的外盖，所述主壳中开设有所述雾化腔，所述主壳呈敞口状，所述外盖盖于所述主壳上，所述出雾口开设于所述外盖上，所述连接口开设于所述主壳的底部。
  20. 如权利要求1-9任一项所述的精油回流式雾化器，其特征在于：所述连接口中设有用于连接精油瓶的螺纹套。
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