Atomizing head backflow structure, fragrance diffusion equipment and air conditioner

Abstract

The invention relates to the technical field of atomization and fragrance diffusion equipment, in particular to an atomization head backflow structure, fragrance diffusion equipment and an air conditioner, the atomization head backflow structure comprises an atomization head shell, the atomization head shell is provided with an air inlet and a mist outlet, and an atomization cavity is formed in the atomization head shell; the atomizing core is arranged in the atomizing cavity and communicated with the air inlet, the atomizing core is provided with an air outlet, one side of the air outlet is provided with a negative pressure suction pipe, and the negative pressure suction pipe is provided with an essential oil opening; a backflow guide plate is further arranged in the atomization cavity, the backflow guide plate is of a conical surface structure, and a guide hole penetrating through the backflow guide plate is formed in the backflow guide plate. Essential oil particles pass through the backflow guide plate in the atomization diffusion process, macromolecular essential oil which is not fully atomized can be attached to the backflow guide plate, the backflow guide plate is of a conical surface structure, the attached macromolecular essential oil can flow to the flow guide holes in the lower position along the conical surface and flow back to an essential oil bottle through the flow guide holes, and flow guide recycling of the essential oil is achieved; therefore, the utilization rate of the essential oil is improved.

Description

Technical Field

[0001] The invention relates to the technical field of atomizing aroma diffusion equipment, and in particular to an atomizing head reflux structure, aroma diffusion equipment, and an air conditioner. Background Art

[0002] Aromatherapy is a product for daily relaxation, which is loved by more and more people. Aromatherapy essential oil can be atomized at the atomization core of the atomizer head and diffused into the room through the essential oil pipeline to improve the air quality. The combination of essential oil atomization and air conditioning can make the fragrance diffuse farther in the room, increase physical and mental comfort, help people relax, relieve stress and improve sleep quality.

[0003] During the atomization process of aromatherapy essential oils in the atomization equipment, some insufficiently atomized macromolecular essential oils will be produced. These insufficiently atomized macromolecular essential oils may stagnate and adhere to the atomization equipment, causing waste of essential oils and reducing the utilization rate of essential oils. Summary of the invention

[0004] The invention provides an atomizing head reflux structure, a fragrance diffusing device and an air conditioner, which are used to solve the defect that the macromolecular essential oil produced by atomizing the aromatherapy essential oil in the existing atomizing device easily causes the essential oil utilization rate to be reduced.

[0005] The present invention provides an atomizer head reflux structure, comprising an atomizer head shell, an atomizer core, a negative pressure suction pipe and a reflux guide plate, wherein the atomizer head shell is provided with an air inlet and a mist outlet, and an atomizer chamber is formed inside the atomizer head shell; the atomizer core is arranged in the atomizer chamber, the atomizer core is communicated with the air inlet, and the atomizer core is provided with an air outlet; the negative pressure suction pipe is located at one side of the air outlet, and the negative pressure suction pipe is provided with an essential oil port arranged opposite to the air outlet; the reflux guide plate is arranged in the atomizer chamber, and is located between the mist outlet and the air outlet, the reflux guide plate is a conical structure, and a guide hole penetrating the reflux guide plate is provided on the reflux guide plate.

[0006] According to a reflux structure of an atomizer head provided by the present invention, the air inlet is located on the side of the atomizer head shell, and the mist outlet is located on the top of the atomizer head shell; the top inlet of the atomizer core is connected to the air inlet, and the air outlet is located at the bottom of the atomizer core, and an atomization channel is formed between the atomizer core and the inner wall of the atomization chamber, and the reflux guide plate includes a first guide plate, and the first guide plate is located in the atomization channel.

[0007] According to a reflux structure of an atomizer head provided by the present invention, the reflux guide plate further includes a second guide plate, and the second guide plate is located between the atomizer core and the mist outlet.

[0008] According to a reflux structure of an atomizer head provided by the present invention, the first guide plate is formed into a structure with a downward depression in the center, the atomizer core is fixedly inserted into the central depression of the first guide plate, and a plurality of guide holes are distributed along the periphery of the atomizer core on the first guide plate; the second guide plate is formed into a structure with an upward protrusion in the center, and a plurality of guide holes are distributed circumferentially on the edge of the second guide plate.

[0009] According to an atomizer head reflux structure provided by the present invention, a connector is connected to the lower end of the atomizer head shell, a flow channel is formed inside the connector, the lower end of the connector is used for detachably connecting to an essential oil bottle, and the first guide plate is located in the flow channel of the connector.

[0010] According to an atomizer head reflux structure provided by the present invention, at least one guide column is vertically fixed on the first guide plate, the second guide plate is arranged in the sleeve, and the upper end of the guide column is penetrated through the sleeve wall of the sleeve so that the sleeve is overlapped on the upper end of the connecting head.

[0011] According to a reflux structure of an atomizer head provided by the present invention, the negative pressure suction pipe is connected to the lower side of the atomizer core, the upper side of the negative pressure suction pipe is provided with the essential oil port, and the extended axis line of the essential oil port intersects with the extended axis line of the air outlet.

[0012] According to an atomizer head reflux structure provided by the present invention, a pull-out handle is provided on the outer peripheral surface of the atomizer head shell.

[0013] The present invention also provides a fragrance diffusion device, comprising the atomizer head reflux structure described in any one of the above, and also comprising an essential oil bottle, an air pump and a control circuit board, wherein the essential oil bottle is detachably connected to the atomizer head housing; the air pump is connected to the air inlet through a connecting pipeline, and a solenoid valve is arranged on the connecting pipeline; the control circuit board is electrically connected to the air pump and the solenoid valve respectively.

[0014] The present invention also provides an air conditioner, comprising an openable storage cavity provided on the air conditioner body, wherein the above-mentioned fragrance diffusion device is arranged in the storage cavity, and the mist outlet of the atomizing head reflux structure in the fragrance diffusion device is connected to the air outlet of the air conditioner body through a pipeline.

[0015] The atomizer head reflux structure, aroma diffusion equipment and air conditioner provided by the present invention are connected to an air pump through an air inlet arranged on a shell of the atomizer head to receive high-speed gas pumped out by the air pump. The high-speed gas enters the atomizer core through the air inlet to form a negative pressure environment at the air outlet of the atomizer core. Since a negative pressure straw is arranged on one side of the air outlet, when the negative pressure straw is inserted into the essential oil bottle, the essential oil in the essential oil bottle can be sucked out through the negative pressure straw under the action of the negative pressure environment at the air outlet. At the essential oil port of the negative pressure straw, the sucked essential oil collides with the high-speed gas at the air outlet of the atomizer core to form nanometer-scale essential oil particles, which are then diffused into the atomization cavity of the atomizer head and then diffused out from the mist outlet of the atomizer head. During the diffusion process of essential oil particles in the atomization chamber, they will pass through the reflux guide plate. The macromolecular essential oil that is not fully atomized and the essential oil droplets in the atomized essential oil delivery pipe will adhere to the reflux guide plate. Since the reflux guide plate is a conical structure, the attached macromolecular essential oil will flow along the conical surface to the guide holes at the lower part, and flow back to the essential oil bottle through the guide holes, thus realizing the recovery of essential oil in the atomization head and the essential oil tube group, which can continue to participate in the atomization process, thereby improving the utilization rate of the essential oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is an external schematic diagram of the atomizing head reflux structure provided by the present invention.

[0018] Figure 2 It is an internal schematic diagram of the atomizing head reflux structure provided by the present invention.

[0019] Figure 3 It is a schematic diagram of the explosion structure of the atomizing head reflux structure provided by the present invention.

[0020] Figure 4 It is a schematic structural diagram of the atomizing core and the negative pressure straw provided by the present invention.

[0021] Figure 5 It is a structural schematic diagram of the fragrance diffusion device provided by the present invention.

[0022] Figure numerals: 1, atomizer head shell; 101, air inlet; 102, mist outlet; 103, pull-out handle; 2, atomizer core; 201, air outlet; 3, negative pressure straw; 301, essential oil outlet; 4, reflux guide plate; 401, guide hole; 402, first guide plate; 403, second guide plate; 404, guide column; 5, connector; 6, sleeve; 7, essential oil bottle; 8, air pump; 9, solenoid valve; 10, control circuit board. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0028] Combine the following Figures 1 to 5 The specific structures and working principles of the atomizer head reflux structure, fragrance diffusion equipment and air conditioner of the present invention are described.

[0029] One embodiment of the present invention provides an atomizer head reflux structure, combined with Figure 1 and Figure 2 As shown, the atomizer head reflux structure includes an atomizer head shell 1, an atomizer core 2, a negative pressure suction pipe 3 and a reflux guide plate 4, wherein the atomizer head shell 1 is provided with an air inlet 101 and a mist outlet 102, and an atomization chamber is formed inside the atomizer head shell 1; the atomizer core 2 is arranged in the atomization chamber, the atomizer core 2 is connected with the air inlet 101, and the atomizer core 2 is provided with an air outlet 201; the negative pressure suction pipe 3 is located on one side of the air outlet 201, and the negative pressure suction pipe 3 is provided with an essential oil port 301 arranged opposite to the air outlet 201; the reflux guide plate 4 is arranged in the atomization chamber, and is located between the mist outlet 102 and the air outlet 201, the reflux guide plate 4 is a conical structure, and the reflux guide plate 4 is provided with a guide hole 401 penetrating the reflux guide plate 4.

[0030] It can be understood that the atomizer head reflux structure of the present embodiment is connected to the air pump through the air inlet 101 provided on the atomizer head shell 1, and receives the high-speed gas pumped out by the air pump. The high-speed gas enters the atomizer core 2 through the air inlet 101, and forms a negative pressure environment at the air outlet 201 of the atomizer core 2. Since a negative pressure suction pipe 3 is provided on one side of the air outlet 201, when the negative pressure suction pipe 3 is inserted into the essential oil bottle, under the action of the negative pressure environment at the air outlet 201, the essential oil in the essential oil bottle can be sucked out through the negative pressure suction pipe 3. At the essential oil port 301 of the negative pressure suction pipe 3, the sucked essential oil collides with the high-speed gas at the air outlet 201 of the atomizer core 2 to form nanometer-scale essential oil particles, which are then diffused into the atomization cavity of the atomizer head 1, and then diffused out from the mist outlet 102 of the atomizer head 1. During the diffusion process of the essential oil particles in the atomization chamber, they will pass through the reflux guide plate 4. The macromolecular essential oil that is not fully atomized and the essential oil droplets in the atomized essential oil delivery pipe will adhere to the reflux guide plate 4. Since the reflux guide plate 4 is a conical structure, the attached macromolecular essential oil will flow along the conical surface to the guide hole 401 at the lower part, and flow back to the essential oil bottle through the guide hole 401, thereby realizing the recovery of the essential oil in the atomization head and the essential oil tube group, and can continue to participate in the atomization process, thereby improving the utilization rate of the essential oil.

[0031] Furthermore, in some embodiments, the reflux guide plate 4 is also provided with defoaming spikes, which can puncture the liquid film or bubbles in the essential oil during the reflux process of the essential oil to avoid clogging the guide hole. A plurality of defoaming spikes are provided, and the plurality of defoaming spikes are distributed at the opening of the guide hole 401 toward the mist outlet 102, the inner wall of the guide hole 401, and the area of ​​the negative pressure atomization area close to the guide hole 401. It is understandable that the refluxed essential oil droplets first reach the opening of the guide hole 401 facing the mist outlet 102 on the reflux guide plate 4, and then pass through the guide hole 401 to enter the lower layer. During this process, the defoaming spikes arranged at the opening of the guide hole 401 can perform a first round of acupuncture on the liquid film formed by the essential oil or the bubbles inside. After the essential oil enters the guide hole 401, the defoaming spikes on the inner wall of the guide hole 401 perform a second round of acupuncture to ensure that the essential oil can flow smoothly through the guide hole 401, and the guide hole 401 will not be blocked by the liquid film formed by the essential oil or the bubbles inside. In some examples, the defoaming spikes are arranged at an angle, and the inclination direction is toward the opening of the guide hole 401. The defoaming spikes arranged at an angle are more conducive to puncturing the liquid film or bubbles formed by the essential oil. Furthermore, the inclination angles of the multiple defoaming spikes are not exactly the same to form a variety of puncture angles. It is understandable that the liquid films or bubbles formed by the essential oil are of different sizes and positions. In this example, the defoaming spikes have different inclination angles, and defoaming spikes at multiple angles can be formed. When the essential oil flows through the guide hole 401, acupuncture at various angles is formed inside the essential oil, which can effectively puncture each liquid film or bubble.

[0032] In some specific embodiments of the atomizer head reflux structure of the present invention, combined with Figure 2 and Figure 3 As shown, the air inlet 101 is located at the side of the atomizer head shell 1, and the mist outlet 102 is located at the top of the atomizer head shell 1; the top entrance of the atomizer core 2 is connected to the air inlet 101, and the air outlet 201 is located at the bottom of the atomizer core 2. An atomization channel is formed between the atomizer core 2 and the inner wall of the atomization chamber, and the reflux guide plate 4 includes a first guide plate 402, and the first guide plate 402 is located in the atomization channel.

[0033] See also Figure 2 As shown, it can be understood that in this embodiment, the high-speed gas pumped out by the air pump enters the atomizing core 2 from the air inlet 101 on the side of the atomizing head housing 1, and then reaches the air outlet 201 downward. At the air outlet 201, the high-speed gas forms a negative pressure environment to absorb the essential oil in the negative pressure straw 3. The essential oil is atomized into nano-scale essential oil particles under the collision of the high-speed gas. After atomization, the nano-scale essential oil particles diffuse upward from the atomization channel formed between the atomizing core 2 and the inner wall of the atomizing chamber, pass through the guide holes 401 on the first guide plate 402 to reach the upper layer, and finally diffuse out from the mist outlet 102. During the diffusion process of the atomized essential oil particles, some macromolecular essential oils that are not fully atomized will adhere to the first guide plate 402, and flow back to the essential oil bottle through the multiple guide holes 401 on the first guide plate 402, completing the recovery of the essential oil for re-atomization.

[0034] Further, in some other embodiments of the atomizer head reflux structure of the present invention, the reflux guide plate 4 further includes a second guide plate 403, and the second guide plate 403 is located between the atomizer core 2 and the mist outlet 102. It can be understood that in the essential oil atomization and diffusion process of the above embodiment, this embodiment sets a two-layer guide plate structure, and continues to refer to Figure 2 As shown, there are a first guide plate 402 and a second guide plate 403 respectively. When the macromolecular essential oil that is not fully atomized passes through the two layers of guide plates, it will adhere to the first guide plate 402 and the second guide plate 403. Under the action of the conical structure, the essential oil flows back downward from the guide hole 401 at the lowest point of the cone and finally enters the essential oil bottle.

[0035] Specifically, in some specific examples of the reflux structure of the atomizer head of the present invention, the first guide plate 402 is formed as a structure with a downward depression in the center, the atomizer core 2 is fixedly inserted into the central depression of the first guide plate 402, and a plurality of guide holes 401 are distributed along the periphery of the atomizer core 2 on the first guide plate 402; the second guide plate 403 is formed as a structure with an upward protrusion in the center, and a plurality of guide holes 401 are distributed circumferentially on the edge of the second guide plate 403.

[0036] See again Figure 2As shown, it can be understood that, in this example, the essential oil is collided and atomized at the air outlet 201 at the bottom of the atomization core 2, and the atomized essential oil particles diffuse upward through the atomization channel between the atomization core 2 and the inner wall of the atomization chamber, first passing through the first guide plate 402, and then passing through the second guide plate 403, to reach the mist outlet 102 of the atomization head shell 1. In this process, some macromolecular essential oils that are not fully atomized in the atomized particles will be blocked by the guide plates on both sides and will adhere to the guide plates, and some essential oil droplets in the external pipeline of the mist outlet 102 will also return to the atomization head shell 1 from the mist outlet 102. For the macromolecular essential oil attached to the second guide plate 403, since the center of the second guide plate 403 protrudes upward, the attached macromolecular essential oil will flow from the center to the four sides on the second guide plate 403. The second guide plate 403 has a plurality of guide holes 401 distributed at a relatively low edge thereof, and the macromolecular essential oil gathers at the guide holes 401, and flows back to the lower layer through the guide holes 401 to reach the first guide plate 402. Since the center of the first guide plate 402 is concave downward, the macromolecular essential oil flowing back through the guide holes 401 of the second guide plate 403 and the macromolecular essential oil attached to the first guide plate 402 flow from the higher positions around to the central concave part on the second guide plate 403. Since the first guide plate 402 has a plurality of guide holes 401 distributed at the periphery close to the atomizing core 2, the macromolecular essential oil flows back to the lower layer from the plurality of guide holes 401 on the first guide plate 402, and finally returns to the essential oil bottle through the guide holes 401 on the first guide plate 402.

[0037] In some specific examples of the atomizer head reflux structure of the present invention, combined with Figure 2 and Figure 3 As shown, the lower end of the atomizer head housing 1 is connected to a connector 5 , a flow channel is formed inside the connector 5 , the lower end of the connector 5 is used for detachably connecting to the essential oil bottle, and the first guide plate 402 is located in the flow channel of the connector 5 .

[0038] It can be understood that in the structure of the present embodiment, the lower end of the atomizer head shell 1 is an open structure, the upper end of the connector 5 is clamped on the inner wall of the atomizer head shell 1 to form a connection, the lower end of the connector 5 is provided with an internal thread, which can be detachably connected to the external thread of the mouth of the essential oil bottle, and the first guide plate 402 is provided in the flow channel of the connector 5, and the atomizer core 2 is penetrated on the first guide plate 402. After the essential oil bottle is connected to the lower end of the connector 5, the air outlet 201 at the lower end of the atomizer core 2 and the negative pressure straw 3 are both extended into the essential oil bottle, and atomization is performed at the mouth of the essential oil bottle. The atomized ions pass through the first guide plate 402 during the upward diffusion process, so that the macromolecular essential oil flows back into the essential oil bottle from the guide hole 401 on the first guide plate 402.

[0039] In some specific examples, in the atomizer head reflux structure of the present invention, at least one guide column 404 is vertically fixed on the first guide plate 402, the second guide plate 403 is arranged in the sleeve 6, and the upper end of the guide column 404 is penetrated through the sleeve wall of the sleeve 6, so that the sleeve 6 is overlapped on the upper end of the connector 5. Figure 3 As shown, it can be understood that in this example, the atomizer head reflux structure mainly includes four parts, namely the atomizer head shell 1, the sleeve 6 (with the second guide plate 403 arranged inside), the connector 5 (with the first guide plate 402 arranged inside), and the atomizer assembly consisting of the atomizer core 2 and the negative pressure suction pipe 3. The side of the connector 5 is provided with a connecting interface, which is communicated with the air inlet 101 on the atomizer head shell 1. The atomizer assembly consisting of the atomizer core 2 and the negative pressure suction pipe 3 is penetrated on the first guide plate 402 inside the connector 5. The atomizer core 2 is connected to the connecting interface on the side of the connector 5. The sleeve 6 is connected to the guide column 40 4 is stacked and connected with the connecting head 5. After the sleeve 6 and the connecting head 5 are connected, they are assembled in the internal cavity of the atomizer head shell 1, forming a structure in which air is taken in through the air inlet 101, atomization is performed through the atomizer core 2 and the negative pressure suction pipe 3, and two-layer conical surface reflux is performed through the first guide plate 402 and the second guide plate 403. The essential oil in the essential oil bottle connected to the lower end of the connecting head 5 can be continuously and stably atomized and diffused, and the essential oil particles that have not diffused out in the atomization channel and the essential oil attached to the atomizer head can be refluxed into the essential oil bottle along the conical surface guide plate through the two-layer conical surface guide plate, thereby improving the atomization utilization rate of the essential oil.

[0040] In some embodiments of the atomizer head reflux structure of the present invention, see Figure 4 As shown, the negative pressure suction pipe 3 is connected to the lower side of the atomizer core 2, and the upper side of the negative pressure suction pipe 3 is provided with an essential oil port 301, and the extended axis line of the essential oil port 301 intersects with the extended axis line of the air outlet 201.

[0041] It can be understood that in the structure of the air conditioner capable of diffusing fragrance of the present embodiment, the high-speed gas pumped out by the air pump enters the upper end of the atomizing core 2 from the air inlet 101 on the side of the atomizing head shell 1, and in the atomizing core 2, the high-speed gas reaches downwardly the air outlet 201 at the lower end of the atomizing core 2, and a negative pressure environment is formed at the air outlet 201, and the axis extension line of the air outlet 201 intersects with the axis extension line of the essential oil port 301. Then, due to the negative pressure environment, the negative pressure suction pipe 3 generates an upward adsorption force on the essential oil in the essential oil bottle, so that the essential oil in the essential oil bottle is sucked out from the essential oil port 301 of the negative pressure suction pipe 3, and the essential oil sucked out of the essential oil port 301 collides with the high-speed gas ejected from the air outlet 201 to form nano-scale essential oil particles, which then diffuse upwardly from the atomizing cavity inside the atomizing head shell 1 to reach the mist outlet 102 at the top of the atomizing head shell 1, and the fragrance is diffused through the pipeline by the mist outlet 102.

[0042] In some specific examples of the atomizer head reflux structure of the present invention, a pull-out handle 103 is provided on the outer peripheral surface of the atomizer head shell 1. It can be understood that the atomizer head reflux structure in this example can be easily moved and placed on the atomizer head reflux structure by providing the pull-out handle 103 for the atomizer head shell 1, and is suitable for replacing and adding aromatherapy essential oils in the essential oil bottle connected to the atomizer head reflux structure. For details, please refer to the structure of the air conditioner provided later.

[0043] Another aspect of the present invention provides a fragrance diffusion device, see Figure 5 As shown, in some embodiments, the aroma diffusion device of the present invention includes the atomizer head reflux structure of any one of the above embodiments, and also includes an essential oil bottle 7, an air pump 8 and a control circuit board 10, the essential oil bottle 7 is detachably connected to the atomizer head housing 1; the air pump 8 is connected to the air inlet 101 through a connecting pipeline, and a solenoid valve 9 is arranged on the connecting pipeline; the control circuit board 10 is electrically connected to the air pump 8 and the solenoid valve 9 respectively.

[0044] The aroma diffusion device of this embodiment is pumped with high-speed flowing gas through the air pump 8, and the high-speed flowing gas enters the atomizing head reflux structure from the air inlet 101, and the essential oil in the essential oil bottle 7 is atomized and diffused and the essential oil refluxes in the atomizing head reflux structure, and the atomized essential oil diffuses outward from the mist outlet 102 to increase the fragrance. It can be understood that the aroma diffusion device in this embodiment includes the atomizing head reflux structure of the present invention, so that the aroma diffusion device has the atomization effect of the atomizing head reflux structure during the atomization and aroma diffusion process, that is, it can achieve uniform and stable atomization and aroma diffusion, and ensure that the macromolecular essential oil that is not fully atomized during the atomization process and the essential oil droplets in the atomized essential oil delivery pipe can be left behind by the two-layer conical guide plate and reflux into the essential oil bottle 7.

[0045] In addition, the aroma diffusion device of this embodiment can realize intelligent fragrance switching and concentration adjustment by controlling the circuit board 10 to be electrically connected to the air pump 8 and the solenoid valve 9, so as to perform uniform and long-lasting aroma diffusion. Specifically, multiple groups of essential oil bottles 7 and the corresponding atomizer head reflux structures (such as Figure 5 The two groups shown can realize two-fluid fragrance atomization and fragrance diffusion), the air pump 8 is connected to all the atomizer head reflux structures through pipelines, and each connecting pipeline is provided with a solenoid valve 9. The opening of all the solenoid valves 9 is adjusted by the control circuit board 10. The fragrance concentration can be reduced by reducing the opening of the solenoid valve 9. Conversely, the fragrance concentration can be increased by increasing the opening of the solenoid valve 9. By controlling the solenoid valve 9 on each connecting pipeline by the control circuit board 10, the proportion of the aromatherapy essential oil atomized by the corresponding atomizer head reflux structure can be adjusted, and the fragrance ratio of the final atomized fragrance can be adjusted to achieve atomization fragrance switching.

[0046] On the other hand, the present invention also provides an air conditioner, including a storage cavity arranged on the air conditioner body and can be opened, the storage cavity is arranged with the fragrance diffusion device in the above embodiment, and the mist outlet 102 of the atomizer head reflux structure in the fragrance diffusion device is connected to the air outlet of the air conditioner body through a pipeline.

[0047] It is understandable that in the air conditioner of this embodiment, the aroma diffusion device is located in the storage cavity on the air conditioner body, and the storage cavity can be conveniently opened at any time to take out and replace the essential oil in the essential oil bottle 7, solving the problem of inconvenience in replacement and taking out when the user uses the air conditioner to diffuse the fragrance. The essential oil bottle 7 can be set to multiple groups to provide a variety of aromatherapy products with different fragrances, forming a three-dimensional combination of fragrances that diffuse into the room, providing a high-quality and comfortable environment for the user's daily activities. The air conditioner of this embodiment, on the basis of flexible taking out and replacing of fragrance essential oils, includes the atomizer head reflux structure of the above embodiment, so that the air conditioner can evenly provide a variety of different selected fragrances during the fragrance diffusion process, and can reflux the macromolecular essential oils that are not fully atomized, thereby improving the utilization rate of the essential oils.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An atomizing head reflux structure, characterized in that: include: An atomizer head shell (1), wherein the atomizer head shell (1) is provided with an air inlet (101) and a mist outlet (102), and an atomizer chamber is formed inside the atomizer head shell (1); An atomizing core (2) is arranged in the atomizing chamber, the atomizing core (2) is in communication with the air inlet (101), and the atomizing core (2) is provided with an air outlet (201); A negative pressure suction pipe (3) is located on one side of the air outlet (201), and the negative pressure suction pipe (3) is provided with an essential oil port (301) arranged opposite to the air outlet (201); A return flow guide plate (4) is arranged in the atomization chamber and is located between the mist outlet (102) and the air outlet (201); the return flow guide plate (4) is a conical structure; and a guide hole (401) penetrating the return flow guide plate (4) is arranged on the return flow guide plate (4).

2. The atomizer head reflux structure according to claim 1, characterized in that: The air inlet (101) is located at the side of the atomizer head housing (1), and the mist outlet (102) is located at the top of the atomizer head housing (1); the top entrance of the atomizer core (2) is connected to the air inlet (101), and the air outlet (201) is located at the bottom of the atomizer core (2); an atomization channel is formed between the atomizer core (2) and the inner wall of the atomization chamber; the return flow guide plate (4) comprises a first guide plate (402), and the first guide plate (402) is located in the atomization channel.

3. The atomizing head reflux structure according to claim 2, characterized in that: The return flow guide plate (4) further comprises a second flow guide plate (403), wherein the second flow guide plate (403) is located between the atomization core (2) and the mist outlet (102).

4. The atomizing head reflux structure according to claim 3, characterized in that: The first guide plate (402) is formed as a structure with a center that is concave downwards, the atomizer core (2) is fixedly inserted into the center concave portion of the first guide plate (402), and the first guide plate (402) is provided with a plurality of guide holes (401) distributed along the periphery of the atomizer core (2); the second guide plate (403) is formed as a structure with a center that is protruding upwards, and the edge of the second guide plate (403) is provided with a plurality of guide holes (401) distributed circumferentially.

5. The atomizing head reflux structure according to claim 4, characterized in that: The lower end of the atomizer head housing (1) is connected to a connector (5), a flow passage is formed inside the connector (5), the lower end of the connector (5) is used for detachably connecting to an essential oil bottle, and the first guide plate (402) is located in the flow passage of the connector (5).

6. The atomizing head reflux structure according to claim 5, characterized in that: At least one guide column (404) is vertically fixed on the first guide plate (402), the second guide plate (403) is arranged in the sleeve (6), and the upper end of the guide column (404) is penetrated through the sleeve wall of the sleeve (6), so that the sleeve (6) is overlapped on the upper end of the connector (5).

7. The atomizer head reflux structure according to any one of claims 1 to 6, characterized in that: The negative pressure suction pipe (3) is connected to the lower side of the atomizing core (2), and the upper side of the negative pressure suction pipe (3) is provided with the essential oil port (301), and the extended axis line of the essential oil port (301) intersects with the extended axis line of the air outlet (201).

8. The atomizer head reflux structure according to any one of claims 1 to 6, characterized in that: A pull-out handle (103) is provided on the outer peripheral surface of the atomizer head housing (1).

9. A fragrance diffusion device, characterized in that: include: The atomizer head reflux structure according to any one of claims 1 to 8; An essential oil bottle (7) detachably connected to the atomizer head housing (1); An air pump (8), the air pump (8) being connected to the air inlet (101) via a connecting pipeline, and a solenoid valve (9) being provided on the connecting pipeline; A control circuit board (10), wherein the control circuit board (10) is electrically connected to the air pump (8) and the solenoid valve (9) respectively.

10. An air conditioner, characterized in that: It comprises an openable storage cavity which is arranged on the air conditioner body, wherein the fragrance diffusion device according to claim 9 is arranged in the storage cavity, and the mist outlet (102) of the atomizing head reflux structure in the fragrance diffusion device is connected to the air outlet of the air conditioner body through a pipeline.

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