Atomization device and atomizer

By introducing a heat insulation cover and a flexible seal into the atomizing device, and using the temperature responsiveness of the seal to control the liquid inlet, the problem of decreased oil absorption and leakage caused by prolonged immersion of the atomizing component is solved, thereby achieving stability of the atomization effect and improving the user experience.

CN223759235UActive Publication Date: 2026-01-06SHENZHEN SKE TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520224834.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2026-01-06
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

After a conventional atomizing device is injected with an atomizing matrix, the atomizing components are prone to reduced oil absorption due to prolonged soaking, which affects the taste and may also lead to leakage of the atomizing matrix.

Method used

The design incorporates an insulation cover and flexible sealing components. The liquid inlet hole is automatically opened or closed according to temperature changes. Combined with multiple layers of materials with different coefficients of thermal expansion, the liquid inlet hole can be sensitively controlled.

Benefits of technology

Maintaining the oil absorption of the atomizing components prevents leakage of the atomizing matrix, ensures stable atomization performance, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223759235U_ABST
    Figure CN223759235U_ABST
Patent Text Reader

Abstract

The utility model discloses an atomization device and an atomizer. The atomization device comprises a shell, an atomization assembly, a heat preservation cover, a flexible sealing piece and a sealing piece, and the interior of the shell is hollow; the atomization assembly is arranged in the shell, the atomization assembly and the inner wall of the shell define an oil storage cavity for storing an atomization matrix, the atomization assembly comprises an oil separation part and a heating part which are sequentially arranged from outside to inside, a liquid inlet hole is formed in the oil separation part, the heating part is arranged in the oil separation part, and the liquid inlet hole is communicated with the liquid inlet hole. The atomization substrate is in contact with the heating piece after passing through the liquid inlet hole; the heat preservation cover and the oil separation piece are arranged in a spaced mode, the flexible sealing piece is arranged on the oil separation piece, and an opening for exposing the liquid inlet hole is formed in the flexible sealing piece; the sealing piece can deform according to temperature or air pressure changes so as to be away from the flexible sealing piece to open the liquid inlet hole or be attached to the flexible sealing piece to seal the liquid inlet hole.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular to an atomizing device and an atomizer. Background Technology

[0002] Atomizing devices atomize a matrix into an aerosol using an atomizing component, which users then inhale. In conventional atomizing devices, the atomizing component remains immersed in the matrix after it's injected. Over time, this can reduce the component's absorbency, affecting not only the taste of the atomized matrix but also increasing the risk of matrix leakage during long-term storage or transportation. Utility Model Content

[0003] The main objective of this application is to propose an atomizing device and atomizer to solve the technical problem of encapsulating the atomizing matrix in the atomizing device.

[0004] To achieve the above objectives, this application provides an atomizing device, the atomizing device comprising:

[0005] A housing, the housing being hollow inside;

[0006] An atomizing component is disposed within the housing and defines an oil storage chamber for storing an atomizing matrix with the inner wall of the housing. The atomizing component includes an oil separator and a heating element arranged sequentially from the outside to the inside. The oil separator has a liquid inlet hole, and the heating element is disposed within the oil separator. The atomizing matrix contacts the heating element after passing through the liquid inlet hole.

[0007] A heat insulation cover is provided on the oil separator, and the heat insulation cover and the oil separator are at least partially spaced apart and defined to form an interval space, the interval space is connected to the oil storage chamber, and the liquid inlet is connected to the interval space;

[0008] A flexible seal is disposed on the oil separator, and the flexible seal has an opening that exposes the liquid inlet hole;

[0009] A closure element, at least a portion of which is disposed within the space, is capable of deforming according to temperature changes to move away from the flexible seal to open the liquid inlet or to adhere to the flexible seal to close the liquid inlet.

[0010] Compared with the prior art, this application, by setting up a heat insulation cover and a sealing element, can not only reduce the influence of the temperature difference between the atomizing matrix inside and outside the sealing element, but also increase the sealing strength of the sealing element to the liquid inlet, thereby making the timing of opening and closing of the liquid inlet in the atomizing device more sensitive and reliable to temperature.

[0011] In some embodiments, the heat insulation cover is a hollow cylindrical shape, with one end connected to the oil separator and the other end spaced apart from the outer wall of the oil separator to form the spacer space, which communicates with the oil storage chamber.

[0012] In some embodiments, the periphery of the heat insulation cover is provided with a plurality of flow ports, and at least one of the flow ports is in communication with the spacer.

[0013] In some embodiments, the plurality of flow ports are offset from the closure.

[0014] In some embodiments, at least a portion of the closure is visible through at least one of the flow ports.

[0015] In some embodiments, the flexible seal is made of silicone or rubber material.

[0016] In some embodiments, the surface of the closure member near the liquid inlet is recessed.

[0017] In some embodiments, the thermal conductivity of the oil separator is greater than 180 W / (m·K).

[0018] In some embodiments, at least a portion of the housing is transparent.

[0019] This application also provides an atomizer, comprising:

[0020] An electrical control device; and an atomizing device as described in any of the above embodiments, wherein the heating element of the atomizing device is electrically connected to the electrical control device.

[0021] Compared with the prior art, this application provides an atomizer that can reduce the influence of temperature difference between the inside and outside of the closure, making the temperature of the corresponding area more stable. This makes the timing of opening and closing of the liquid inlet in the atomizing device more sensitive to temperature, and can deform more accurately when the deformation temperature is reached on the inside. Attached Figure Description

[0022] Figure 1 This is a schematic cross-sectional view of the atomizing device in the embodiments provided in this application;

[0023] Figure 2 The schematic diagram of the assembly state structure of the heat insulation cover, flexible seal, closure and atomizing component in the embodiments provided in this application is shown, wherein the closure is in the initial state of sealing the liquid inlet before deformation;

[0024] Figure 3 This is an exploded view of the atomizing device in the embodiments provided in this application;

[0025] Figure 4This is a schematic diagram of the structure of the heat insulation cover provided in the embodiments of this application;

[0026] Figure 5 A schematic diagram of the closure element provided in the embodiments of this application;

[0027] Figure 6 This is an exploded view of the structure of the oil separator and the flexible seal in the embodiments provided in this application;

[0028] Figure 7 This is a schematic diagram of the deformed state of the closure after the liquid inlet is opened in the embodiment provided in this application.

[0029] Explanation of icon numbers:

[0030] 10-Atomizing device; 11-Oil storage chamber; 20-Atomizing component; 21-Oil separator; 210-Liquid inlet; 211-Positioning pin; 22-Heating element; 30-Sealing element; 31-Positioning hole; 32-Recess; 40-Insulation cover; 41-Assembly hole; 42-Flow port; 50-Interval space; 60-Flexible seal; 61-Opening. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] Nebulizers can be used in various fields, such as medical nebulization, beauty nebulization, and cigarette replacement. They primarily work by heating an atomizing matrix to generate an aerosol, which can be a liquid matrix containing or without nicotine. Atomizers generally consist of an oil reservoir and an atomizing component. The oil reservoir stores the atomizing matrix, and the atomizing component heats and atomizes the matrix to generate an aerosol.

[0034] like Figures 1 to 7 As shown, this application provides an atomizing device 10, which includes a housing, an atomizing component 20, a heat insulation cover 40, a flexible sealing element 60, and a sealing element 30. The housing has a hollow interior forming an assembly space. The atomizing component 20 is disposed within the assembly space and defines an oil storage chamber 11 for storing the atomizing matrix, defined by the inner wall of the housing. The oil storage chamber 11 stores the atomizing matrix, and the atomizing component 20 introduces the atomizing matrix stored in the oil storage chamber 11 into its interior and heats and atomizes it to generate an aerosol. Specifically, the atomizing component 20 includes an oil separator 21 and a heating element 22 arranged sequentially from the outside to the inside. The oil separator 21 is fixedly connected to the housing and supports the heating element 22 disposed inside it. The oil separator 21 has a liquid inlet hole 210. A flexible sealing element 60 is fixed on the oil separator 21 and exposes the liquid inlet hole 210. A sealing element 30 is disposed on the outer surface of the oil separator 21 and can cover the liquid inlet hole 210. A heat insulation cover 40 is disposed on the oil separator 21. The sealing element 30 is between the heat insulation cover 40 and the oil separator 21 and deforms to open or close the liquid inlet hole 210 in response to the temperature change of the atomizing component 20. The atomizing matrix stored in the oil storage chamber 11 enters the interior of the atomizing component 20 through the liquid inlet hole 210, and then comes into contact with the heating element 22. Finally, it is heated by the heating element 22 and atomized to generate an aerosol.

[0035] When the atomizing device 10 is not working, such as Figure 1 As shown, the sealing member 30 is in the initial state of sealing the liquid inlet 210. The interior of the atomizing component 20 is isolated from the oil storage chamber 11 by the sealing member 30, which can prevent the internal components of the atomizing component 20 (such as the heating element 22 or the liquid guiding medium) from being constantly immersed in the atomizing matrix. This maintains the oil absorption of the atomizing component 20 and the taste of the atomized matrix, and also makes it less likely for the atomizing matrix to leak during long-term storage or transportation.

[0036] When the atomizing device 10 is working, such as Figure 7As shown, the condition for the sealing member 30 to deform is triggered when the heat generated by the heating element 22 reaches a certain threshold. For example, when the atomizing device 10 is working, the heating effect of the heating element 22 causes the inner side of the sealing member 30 to reach a certain temperature and deform. The deformation of the sealing member 30 can be bending and springing away from its corresponding liquid inlet 210, thus automatically opening the liquid inlet 210, releasing the isolation between the inside of the atomizing component 20 and the oil storage chamber 11, so that when the atomizing device 10 is working, sufficient atomizing matrix can enter the atomizing component 20 and be atomized.

[0037] See Figure 3 As shown, the atomizing assembly 20 includes at least an oil separator 21 and a heating element 22, with the heating element 22 disposed within the oil separator 21. Figure 1 As shown, a gas channel is arranged inside the oil separator 21, and the heating element 22 is installed inside the gas channel. The oil separator 21 has a liquid inlet 210 communicating with the liquid storage chamber. The oil separator 21 is installed in the assembly space, and at least part of the outer wall of the oil separator 21 and the inner wall of the shell define an oil storage chamber 11. To isolate the oil storage chamber 11 from the gas channel, a sealing element 30 that can deform under temperature changes can be fixed on the oil separator 21 and cover the liquid inlet 210. In order to enable the atomizing assembly 20 to achieve more reasonable liquid inlet control, there are multiple liquid inlets 210.

[0038] In some embodiments, the oil separator 21 is made of a material with a thermal conductivity greater than 180 W / (m·K), such as at least one of common metals, including aluminum, gold, copper, and silver. The closure 30 is at least partially in direct contact with the oil separator 21, allowing for faster heat transfer. Figures 5 to 6 As shown, the oil separator 21 is provided with a positioning pin 211, and one end of the sealing member 30 is provided with a positioning hole 31. The sealing member 30 is connected to the oil separator 21 through the combination of the positioning hole 31 and the positioning pin 211.

[0039] In some embodiments, the sealing element 30 is made of at least two layers of materials with different coefficients of thermal expansion. This arrangement allows temperature to act as a trigger for deformation of the sealing element 30, thereby automatically opening the liquid inlet 210 when the atomizing device 10 is in operation. For example, the sealing element 30 may be made of two layers of metallic materials with different coefficients of thermal expansion. The coefficient of thermal expansion of the inner layer material is greater than that of the outer layer material. When the inner layer of the sealing element 30 is heated by the heating element 22, its expansion is greater than that of the outer layer, causing the sealing element 30 to bend away from its corresponding liquid inlet 210, thus opening the seal on the liquid inlet 210. It is understood that the sealing element 30 may be a double-layered metal sheet.

[0040] See Figure 5To enable the sealing element 30 to respond quickly and accurately to the deformation temperature, and to directly and rapidly generate a large deformation after its inner temperature reaches the deformation temperature rather than undergoing slow deformation, in some embodiments, the sealing element 30 has a recess 32 formed by being recessed in a direction away from the liquid inlet 210. It is understood that the heat generated by the heating element 22 is more easily concentrated in the recess, and this heat concentration causes the temperature to rise faster. When the inner temperature of the sealing element 30 reaches the deformation temperature, unlike the slow warping deformation that occurs with ordinary flat sheets, the edge portion of the sealing element 30 will instantly flip outwards, thereby quickly separating the sealing element 30 from the oil separator 21 to open the liquid inlet 210 and realize the flow of the atomizing matrix from the oil storage chamber 11 to the heating element 22. It is understood that when there are multiple liquid inlets 210, the number of sealing elements 30 is the same as the number of liquid inlets 210, and the sealing elements 30 are arranged in a one-to-one correspondence with the liquid inlets 210.

[0041] In some embodiments, each closure 30 corresponds to a unique deformation temperature. At least one closure 30 has a first deformation temperature, and at least one closure 30 has a second deformation temperature, wherein the first deformation temperature is higher than the second deformation temperature. Specifically, the closure 30 deforms when its inner temperature reaches its corresponding deformation temperature. Therefore, by designing closures 30 with different deformation temperatures, this application can gradually open the liquid inlet 210 according to actual needs, thereby achieving more reasonable liquid inlet control of the atomizing assembly 20.

[0042] In actual use, the amount of atomizing matrix required by the user varies significantly depending on the usage scenario. For example, a user might only take a single puff when bored, while a user with a high vaping demand might take continuous, large puffs, resulting in a significant difference in the required amount of atomizing matrix. To address this, the aforementioned setting allows the second deformation temperature to be reached during the user's first or first few puffs, quickly opening the liquid inlet 210 to replenish the atomizing matrix. As the user continues to vape, the temperature continues to rise until the first deformation temperature is reached, subsequently opening more liquid inlets 210 to replenish a sufficient amount of atomizing matrix into the atomizing component 20.

[0043] Furthermore, for the atomizing device 10 of this application, the sealing member 30 corresponding to the first deformation temperature can be configured with a liquid inlet 210 having a first aperture, and the sealing member 30 corresponding to the second deformation temperature can be configured with a liquid inlet 210 having a second aperture, wherein the first aperture is larger than the second aperture. It is easily understood that the above configuration allows the second deformation temperature to be reached when the user inhales for the first few puffs, thereby quickly opening the smaller liquid inlet 210 to replenish an appropriate amount of atomizing matrix. When the user continues to inhale, the temperature continues to rise to reach the first deformation temperature, subsequently opening a larger liquid inlet 210 to quickly replenish sufficient atomizing matrix into the atomizing component 20, thereby achieving more reasonable liquid inlet control of the atomizing component 20.

[0044] During the opening or closing of the liquid inlet 210, the sealing member 30 comes into contact with the surface of the oil separator 21, and may make a sound during this contact. Therefore, a flexible sealing member 60 is fixed on the oil separator 21. The flexible sealing member 60 is made of silicone or rubber-like material and can be sleeved on the oil separator 21. The flexible sealing member 60 has an opening 61 that connects to the liquid inlet 210. See also Figure 1 As shown, before the sealing member 30 deforms, it abuts against the flexible seal 60 and covers and blocks the liquid inlet 210, isolating the oil storage chamber 11 from the gas passage. When the atomizing assembly 20 starts working, the heating element 22 heats up, and the surrounding temperature rises. The heat can be transferred through the thermally conductive material or radiated to heat the sealing member 30. When the heat reaches its deformation threshold, the sealing member 30 deforms and detaches from the flexible seal 60 to open the liquid inlet 210. The atomizing matrix passes through the liquid inlet 210 and comes into contact with the heating element 22 and is atomized by the heat.

[0045] The design of the heat insulation cover 40 enables the sealing component 30 to respond quickly and accurately to deformation temperature. Specifically, the heat insulation cover 40 surrounds the oil separator 21 and defines a roughly enclosed space with it. The heat insulation cover 40 prevents most of the heat generated by the atomizing component 20 from escaping, and the sealing component 30 senses temperature changes between the heat insulation cover 40 and the oil separator 21. Deformation occurs directly once the temperature inside the sealing component 30 reaches the preset deformation temperature, without deformation occurring before or after reaching the preset deformation temperature. When the atomizing equipment is working or not working, the temperature inside the sealing component 30 rises or falls rapidly, reaching the deformation condition and causing deformation. Therefore, the design of the heat insulation cover 40 keeps the atomizing matrix around the sealing component 30 relatively stable, thus keeping the temperature on the outside of the sealing component 30 relatively stable. This allows a large temperature difference to be quickly formed between the inside and outside of the sealing component 30 when the temperature rises or falls rapidly, resulting in rapid and accurate deformation.

[0046] In order to maintain a relatively stable temperature on the outside of the closure 30, the technical solution of this application, such as Figure 4 As shown, the heat insulation cover 40 may include a cylindrical structure and a top plate disposed on the top of the cylindrical structure. The bottom end of the heat insulation cover 40 has a bottom opening, through which the atomizing matrix can enter the interior of the heat insulation cover 40. The top plate has an assembly hole 41, and the top plate is sealed to the oil separator 21. The assembly hole 41 connects the atomizing component 20 and the mist outlet pipe, or the oil separator 21 is inserted into the assembly hole 41, or the mist outlet pipe is inserted into the assembly hole 41. The inner wall of the end of the heat insulation cover 40 away from the top plate is spaced apart from the oil separator 21 to form the aforementioned space 50. When the atomizing device 10 is working, the temperature of the atomizing matrix inside the insulation cover 40 is higher than that of the atomizing matrix outside the insulation cover 40 during the operation of the atomizing device 10. After the atomizing matrix inside the insulation cover 40 is consumed, the atomizing matrix with a lower temperature outside enters the insulation cover 40. The above arrangement allows the atomizing matrix with a lower temperature to enter the insulation cover 40 only from the bottom opening. Since the original atomizing matrix inside the insulation cover 40 has a higher temperature and a certain density difference with the atomizing matrix that enters the insulation cover 40 later, the atomizing matrix that enters from the bottom opening will reduce the degree of convection and mixing of the atomizing matrix inside the insulation cover 40 to a certain extent, thereby maintaining the relative stability of the temperature outside the sealing member 30.

[0047] To meet liquid supply requirements, the circumferential surface of the insulation cover 40 may have multiple flow ports 42. Simultaneously, to prevent the atomized matrix entering through the flow ports 42 from directly impacting and disturbing the atomized matrix outside the sealing member 30, thus causing temperature changes, it is understood that in some embodiments, the shell is at least partially transparent, allowing the flow ports 42 to be observed through the shell. Furthermore, when the flow ports 42 are positioned opposite to the sealing member 30, the deformation state of the sealing member 30 can be observed through the flow ports 42. It is readily understood that in some embodiments, the multiple flow ports 42 are offset from the sealing member 30.

[0048] In some embodiments, in order to enable the atomizing component 20 to achieve more reasonable liquid inlet control, there are multiple liquid inlet holes 210, and the sealing member 30 is provided in a one-to-one correspondence with the liquid inlet holes 210; at least one sealing member 30 has a first deformation temperature, at least one sealing member 30 has a second deformation temperature, and the first deformation temperature is higher than the second deformation temperature.

[0049] Specifically, when the inner temperature of the closure 30 reaches its corresponding deformation temperature, the closure 30 will deform. Therefore, by designing a closure 30 with different deformation temperatures, this application can gradually open the liquid inlet 210 according to actual needs, thereby achieving more reasonable liquid inlet control of the atomizing component 20. In actual use, the amount of atomizing matrix required by the user varies significantly depending on the usage scenario. For example, when a user is bored, they may only take one puff, while when a user has a high demand for inhalation, they may take large, continuous puffs. The amount of atomizing matrix required for these two scenarios differs significantly. To address this, the above-mentioned design allows the second deformation temperature to be reached when the user takes the first or first few puffs, thus quickly opening the liquid inlet 210 to replenish the atomizing matrix. As the user continues to inhale, the temperature continues to rise to reach the first deformation temperature, thereby opening more liquid inlets 210 to replenish sufficient atomizing matrix into the atomizing component 20.

[0050] Furthermore, for the atomizing device 10 of this application, the sealing member 30 having the first deformation temperature can be configured corresponding to the liquid inlet 210 having the first aperture, and the sealing member 30 having the second deformation temperature can be configured corresponding to the liquid inlet 210 having the second aperture, wherein the first aperture is larger than the second aperture. It is easily understood that the above configuration allows the second deformation temperature to be reached when the user inhales for the first few puffs, thereby quickly opening the liquid inlet 210 to replenish an appropriate amount of atomizing matrix. When the user continues to inhale, the temperature continues to rise to reach the first deformation temperature, subsequently opening more liquid inlets 210 to quickly replenish sufficient atomizing matrix into the atomizing component 20, thereby achieving more reasonable liquid inlet control of the atomizing component 20.

[0051] This application also proposes an atomizer, which includes an electrical control device and an atomizing device 10, wherein the heating element 22 in the atomizing device 10 is electrically connected to the electrical control device. The specific structure of the atomizing device 10 is as described in the above embodiments. Since this atomizing device adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be elaborated further here.

[0052] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An atomising device characterised in that, The atomization device comprises: a housing, which is hollow inside; an atomization assembly arranged in the housing and defining an oil storage cavity for storing an atomization substrate with an inner wall of the housing, the atomization assembly comprising an oil separation piece and a heating piece arranged in sequence from outside to inside, the oil separation piece being provided with a liquid inlet hole, the heating piece being arranged in the oil separation piece, the atomization substrate being in contact with the heating piece after passing through the liquid inlet hole; a heat preservation cover, which is arranged on the oil separation piece, and at least partially spaced apart from the oil separation piece to define a spacing space, the spacing space being communicated with the oil storage cavity, the liquid inlet hole being communicated with the spacing space; a flexible sealing piece arranged on the oil separation piece, the flexible sealing piece being provided with an opening exposing the liquid inlet hole; a closure, at least a part of which is arranged in the spacing space, the closure being capable of deforming to move away from the flexible sealing piece to open the liquid inlet hole or adhering to the flexible sealing piece to close the liquid inlet hole according to temperature change.

2. The atomization device of claim 1, wherein, The heat preservation cover is in a hollow cylindrical shape, one end of which is connected with the oil separation piece, and the other end is spaced apart from the outer wall of the oil separation piece to form the spacing space, the spacing space being communicated with the oil storage cavity.

3. The atomization device of claim 1, wherein, The heat preservation cover is provided with a plurality of flow-through openings on the peripheral surface, at least one of the flow-through openings being communicated with the spacing space.

4. The atomization device of claim 3, wherein, The plurality of flow-through openings are arranged in a staggered manner with the closure.

5. The atomization device of claim 3, wherein, At least a part of the closure is visible through at least one of the flow-through openings.

6. The atomization device of claim 1, wherein, The flexible sealing piece is made of silica gel or rubber material.

7. The atomization device of claim 1, wherein, The closure is concave on the side surface close to the liquid inlet hole.

8. The atomization device of claim 1, wherein, The thermal conductivity of the oil separation piece is greater than 180 W / (m·K).

9. The atomization device of claim 1, wherein, At least a part of the housing is transparent.

10. An atomizer characterized by, Comprise: an electrical control device; and The atomization device of any one of claims 1 to 9, the heating piece being electrically connected with the electrical control device.