Atomization device and electronic cigarette

Abstract

The embodiment of the present invention relates to an atomizing device, comprising a housing, an oil storage chamber, an atomizing chamber, an oil storage element, a heating element, an air inlet channel, an air outlet channel, and a driving air flow channel through which the air flow of the driving air flow sensing device passes; the atomizing chamber is a hollow chamber enclosed by the atomizing chamber wall, and the oil storage element and the heating element are arranged in the atomizing chamber; the air inlet channel is connected to the atomizing chamber, and the air outlet of the air inlet channel is arranged on the atomizing chamber wall or inside the atomizing chamber, and the air outlet channel is connected to the atomizing chamber, and the air inlet of the air outlet channel is arranged on the atomizing chamber wall or inside the atomizing chamber; at least a part of the driving air flow channel is arranged to be composed of a hollow tube that is injection molded with at least a part of the atomizing chamber wall, and the hollow tube protrudes into the atomizing chamber. The condensate of the atomizing device will not penetrate outside the atomizing chamber, thereby preventing the condensate from damaging the electrical components.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic cigarettes, and in particular relates to an atomization device and an electronic cigarette thereof. Background Art

[0002] Electronic cigarettes are electronic products that atomize tobacco liquid into aerosol for users to inhale.

[0003] Figure 3 The composition and structure of a typical electronic cigarette atomization device in the prior art are shown, which generally includes a housing 10, an oil storage chamber 20, an atomization chamber 30, an oil storage element 40, and a heating element (not shown in the figure); the oil storage chamber is used to store tobacco oil, and the oil storage element 40 is connected to the oil storage chamber 20 through an oil inlet opened on the atomization chamber 30, and tobacco oil can continuously penetrate from the oil storage chamber 20 to the oil storage element through the oil inlet. The oil storage element is a porous structure and can accommodate a certain amount of tobacco oil. The heating element (such as a heating resistor wire) is arranged in the oil storage element. The heating element generates heat after being energized, heats the tobacco oil stored in the oil storage element, atomizes the tobacco oil, and generates aerosol. The airflow channel 50 is generally straight, the atomization chamber 30 is provided with an air outlet 31, and the oil storage element 40 is located on the airflow channel, corresponding to the air outlet, that is, the oil storage element 40 is arranged in alignment with the air outlet 31, and the oil storage element 40 is exposed at the air outlet. When the user inhales, air enters through the air inlet 32 ​​provided on the atomization chamber 30, passes through the oil storage element, and flows out from the air outlet carrying the aerosol generated by the atomization of the tobacco oil, reaches the cigarette holder through the air outlet channel, and is inhaled by the user.

[0004] The above-mentioned atomization device in the prior art has the following defects: the air outlet channel has a certain length, and the atomized tobacco oil turns from hot to cold when passing through, forming a condensate mixed with tobacco oil and adhering to the wall of the air outlet channel. The condensate may be sucked into the mouth, and the user is subjected to sensory stimulation of numbness and spiciness of the tobacco oil, which is harmful to health and has a poor experience; after long-term accumulation, the condensate is easy to seep out from the air inlet of the atomization chamber, damaging the electrical components of the electronic cigarette (such as batteries or airflow sensing devices, etc.). Summary of the invention

[0005] In order to solve at least one of the technical problems of the above-mentioned condensate blocking the oil storage element, being sucked into the mouth and seeping out of the air inlet to damage the electrical components, an embodiment of the present invention proposes an atomization device, including a shell, an oil storage chamber, an atomization chamber, an oil storage element, a heating element, an air inlet channel, an air outlet channel and a driving air flow channel through which the air flow of a driving air flow sensing device passes; the atomization chamber is a hollow chamber with an atomization chamber wall, and the oil storage element and the heating element are arranged in the atomization chamber; the air inlet channel is connected to the atomization chamber, and the air outlet of the air inlet channel is arranged on the atomization chamber wall or inside the atomization chamber, and the air outlet channel is connected to the atomization chamber, and the air inlet of the air outlet channel is arranged on the atomization chamber wall or inside the atomization chamber; at least a part of the driving air flow channel is configured to be composed of a hollow tube injection-molded with at least a part of the atomization chamber wall, and the hollow tube protrudes into the atomization chamber.

[0006] Furthermore, an air-permeable oil-blocking pad is provided on the outer surface of the atomization chamber wall which is injection-molded with the hollow tube insert.

[0007] Furthermore, the air inlet passage is composed of an air inlet pipe, and the air outlet passage is composed of an air outlet pipe.

[0008] Furthermore, the air inlet channel is arranged close to the housing of the atomizing device, and the air outlet channel is arranged close to the housing relatively to the air inlet channel.

[0009] Furthermore, the air outlet of the air outlet channel constitutes the air outlet of the atomizing device, and the distance between the air inlet of the air inlet channel and the air outlet of the atomizing device is smaller than the distance between the oil storage element and the air outlet of the atomizing device.

[0010] Further, when the air outlet of the air inlet channel is arranged inside the atomization chamber, the portion of the air inlet channel located inside the atomization chamber is in an "L" shape, and / or, when the air inlet of the air outlet channel is arranged inside the atomization chamber, the portion of the air outlet channel located inside the atomization chamber is in an "L" shape.

[0011] Furthermore, the air outlet of the air inlet channel is arranged opposite to the air inlet of the air outlet channel.

[0012] Furthermore, a breathable oil-blocking net is provided at the air outlet of the air outlet channel.

[0013] Further, when the air outlet of the air inlet channel is arranged inside the atomization chamber, there is a gap between the air outlet of the air inlet channel and the wall of the atomization chamber; and / or when the air inlet of the air outlet channel is arranged inside the atomization chamber, there is a gap between the air inlet of the air outlet channel and the wall of the atomization chamber.

[0014] An embodiment of the present invention further provides an electronic cigarette, which includes one of the above-mentioned atomization devices.

[0015] Beneficial effects of the embodiments of the present invention: a breathable oil-blocking net is arranged at the air outlet of the air outlet channel of the atomizing device proposed in the embodiments of the present invention, so that condensed liquid will not be sucked into the mouth; a hollow tube injection-molded with at least a portion of the atomizing chamber wall constitutes a driving airflow channel, and the hollow tube protrudes into the atomizing chamber, thereby preventing condensed liquid from penetrating to the outside of the atomizing chamber and damaging electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front cross-sectional view of an electronic cigarette atomizer provided by an embodiment of the present invention;

[0017] Figure 2 is a side cross-sectional view of an electronic cigarette atomizer device provided by an embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of an electronic cigarette atomization device in the prior art. DETAILED DESCRIPTION

[0019] To make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. However, those skilled in the art will appreciate that the present invention is not limited to the accompanying drawings and the following embodiments.

[0020] Reference Figure 1 , Figure 2 This embodiment proposes an atomization device, which can be used for electronic cigarettes, including a shell 1, an oil storage chamber 2, an atomization chamber 3, an oil storage element 4, a heating element (not shown in the figure), an air inlet channel 51 and an air outlet channel 52.

[0021] The housing is used to define the internal space of the atomizing device and protect the internal components of the atomizing device.

[0022] The oil storage chamber 2 is used to store the smoke oil.

[0023] The atomization chamber 3 is a hollow chamber with an atomization chamber wall. The oil storage element and the heating element (such as a heating resistor) are arranged in the atomization chamber. The oil storage element is a porous structure that can hold the e-liquid. The heating element is used to heat the e-liquid in the oil storage element. The atomization chamber wall basically isolates the oil storage element and the heating element from the external structure. The external structure is, for example, an oil storage chamber, a battery compartment, etc. The basic isolation refers to incomplete isolation. For example, the oil storage element can be connected to the oil storage chamber, and the e-liquid can be introduced from the oil storage chamber to the oil storage element through the oil guide element, or the e-liquid can flow directly to the oil storage element. The heating element can also be electrically connected to the battery in the battery compartment through the electrode.

[0024] An oil inlet 31 is also provided on the wall of the atomization chamber, and the oil storage element is connected with the oil storage chamber through the oil inlet 31, so that the smoke oil can penetrate from the oil storage chamber 2 through the oil inlet to the oil storage element.

[0025] The air inlet channel 51 is used for ambient air to enter the atomization chamber 3, and the air outlet channel 52 is used for air mixed with aerosol to flow out of the atomization chamber. The heating element generates heat after being powered on, and heats the e-liquid stored in the oil storage element to generate aerosol. When the user inhales, the air enters the atomization chamber through the air inlet channel and flows out from the air outlet channel carrying the aerosol.

[0026] The air inlet channel 51 is connected to the atomization chamber 3, and the atomization chamber is connected to the external environment through the air inlet channel 51. The air inlet 511 of the air inlet channel 51 constitutes the air inlet of the atomization device, and the air outlet 512 of the air inlet channel 51 is arranged on the wall of the atomization chamber or inside the atomization chamber, constituting the air inlet of the atomization chamber.

[0027] The air outlet channel 52 is connected to the atomizing chamber 3, and the air inlet 521 of the air outlet channel 52 is arranged on the wall of the atomizing chamber or inside the atomizing chamber to constitute the air outlet of the atomizing chamber. The atomizing chamber is connected to the external environment through the air outlet channel 52, and the air outlet 522 of the air outlet channel 52 constitutes the air outlet of the atomizing device.

[0028] Preferably, the air outlet passage 52 is arranged close to the housing. This structural design can make it easier for the air outlet passage to avoid the oil storage element 4, thereby preventing the condensate from flowing onto the oil storage element and clogging the oil storage element.

[0029] Furthermore, the air inlet channel 51 is opposite to the air outlet channel 52 and is disposed close to the housing of the atomizing device. Different from the generally straight air flow channel in the prior art, this structure allows the air flow channel to be generally U-shaped, thereby easily avoiding the oil storage element.

[0030] Preferably, the air inlet passage is formed by an air inlet pipe, and the air outlet passage is formed by an air outlet pipe. Using the air inlet pipe and the air outlet pipe to form the air inlet passage and the air outlet passage can more easily control the air inhalation resistance and design the appropriate positions of the air inlet and the air outlet.

[0031] The air outlet of the air inlet channel and the air inlet of the air outlet channel are arranged on the wall of the atomization chamber. For example, the air outlet of the air inlet channel and the air inlet of the air outlet channel are formed by openings on the wall of the atomization chamber, or the air outlet end of the air inlet pipe constituting the air inlet channel and the air inlet end of the air outlet pipe constituting the air outlet channel extend to the opening of the wall of the atomization chamber and terminate.

[0032] The air outlet of the air inlet channel and the air inlet of the air outlet channel are arranged inside the atomization chamber. For example, the air outlet of the air inlet channel and the air inlet of the air outlet channel are opened on the wall of the atomization chamber and the wall of the atomization chamber extends from the edge of the opening into the atomization chamber, or the air outlet end of the air inlet pipe constituting the air inlet channel and the air inlet end of the air outlet pipe constituting the air outlet channel extend to the inside of the atomization chamber.

[0033] Preferably, the distance between the air inlet of the air inlet channel and the air outlet of the atomizing device is smaller than the distance between the oil storage element and the air outlet of the atomizing device. For example, when the atomizing device is placed vertically and the air outlet direction of the atomizing device is basically upward (basically upward means that the overall direction of the air outlet is upward, that is, the aerosol has an upward displacement in the vertical direction), refer to Figure 1 In the positional relationship shown, the air inlet of the air inlet channel is arranged above the atomization chamber. In this arrangement, since the air inlet of the air inlet channel is far away from the air outlet of the air inlet channel, even if the condensed liquid enters the air inlet channel, it is difficult to flow back from the air outlet of the air inlet channel, so that the condensed liquid will not easily fall to the outside of the electronic cigarette.

[0034] Preferably, the air outlet of the air inlet channel is staggered with the oil storage element so that when the condensed liquid of the electronic cigarette flows back to the atomization chamber through the air outlet of the air inlet channel, it is not easy to drip directly onto the oil storage element.

[0035] The staggered arrangement, for example, when the atomizer is placed vertically and the air outlet direction of the atomizer is basically upward (basically upward means that the overall direction of the air outlet is upward, that is, the aerosol has an upward displacement in the vertical direction), optionally, the air outlet of the air inlet channel is arranged vertically downward or horizontally ( Figure 1 The air outlet of the air inlet channel is arranged horizontally, and accordingly, the air flow flows out from the air outlet of the air inlet channel in a substantially vertical direction or a horizontal direction. When the air outlet of the air inlet channel is arranged vertically downward, the projections of the air outlet of the air inlet channel and the oil storage element in the vertical direction are substantially non-overlapping, preferably completely non-overlapping, and when the air outlet of the air inlet channel is arranged horizontally, the projections of the air outlet of the air inlet channel and the oil storage element in the horizontal direction are substantially non-overlapping, preferably completely non-overlapping.

[0036] Preferably, when the air outlet of the air inlet channel is arranged inside the atomizing chamber, there is a gap between the air outlet of the air inlet channel and the wall of the atomizing chamber. The gap means that the air outlet of the air inlet channel does not contact the wall of the atomizing chamber, that is, the air outlet end of the air inlet channel is suspended in the atomizing chamber. This arrangement does not form a continuous condensate flow path between the air outlet of the air inlet channel and the wall of the atomizing chamber, making it difficult for the condensate to flow back into the air inlet channel. Specifically, for example, the part of the air inlet channel located inside the atomizing chamber is "L" shaped.

[0037] Preferably, when the air inlet of the air outlet channel is arranged inside the atomizing chamber, there is a gap between the air inlet of the air outlet channel and the wall of the atomizing chamber. The gap means that the air inlet of the air outlet channel does not contact the wall of the atomizing chamber, that is, the air inlet end of the air outlet channel is suspended in the atomizing chamber. This arrangement does not form a continuous condensate flow path between the air inlet of the air outlet channel and the wall of the atomizing chamber, making it difficult for the condensate to flow back into the air outlet channel. Specifically, for example, the part of the air outlet channel located inside the atomizing chamber is "L" shaped.

[0038] Preferably, the air inlet of the air outlet channel is staggered with the oil storage element so that when the condensed liquid of the electronic cigarette flows back to the atomization chamber from the air inlet of the air outlet channel, it is not easy to drip directly onto the oil storage element.

[0039] The staggered arrangement, for example, when the atomizer is placed vertically and the air outlet direction of the atomizer is basically upward (basically upward means that the overall direction of the air outlet is upward, that is, the aerosol has an upward displacement in the vertical direction), optionally, the air inlet of the air outlet channel is arranged vertically downward or horizontally ( Figure 1 Accordingly, the air flow enters the air inlet of the air outlet channel in a basically vertical direction or a horizontal direction. When the air inlet of the air outlet channel is arranged vertically downward, the projections of the air inlet of the air outlet channel and the oil storage element in the vertical direction basically do not overlap, preferably do not overlap at all. When the air inlet of the air outlet channel is arranged horizontally, the projections of the air inlet of the air outlet channel and the oil storage element in the horizontal direction basically do not overlap, preferably do not overlap at all.

[0040] Preferably, when the atomizer is placed vertically and the air outlet direction of the atomizer is basically upward (basically upward means that the overall direction of the air outlet is upward, that is, the aerosol has an upward displacement in the vertical direction), the air outlet of the air inlet channel is arranged below the oil storage element, and / or the air inlet of the air outlet channel is arranged below the oil storage element. This arrangement can at least partially make the airflow avoid the oil storage element, and compared with the prior art in which the airflow needs to pass through the oil storage element, it reduces the influence of the oil storage element material on the taste of the e-liquid.

[0041] Preferably, the air outlet of the air inlet channel is arranged opposite to the air inlet of the air outlet channel, referring to Figure 1 For example, the air inlet channel and the air outlet channel in the atomizing chamber are both in an "L" shape, which can easily realize the relative arrangement of the two. This arrangement method is conducive to reducing the inhalation resistance and improving the user experience.

[0042] Preferably, a breathable oil-blocking net 6 is provided at the air outlet of the air outlet channel. The breathable oil-blocking net is a net coated with a breathable oleophobic layer, which is formed by coating an oleophobic material on the surface of a food-grade mesh material (such as a nylon mesh). The breathable oil-blocking net is pasted on the outer shell of the atomizer, covering the air outlet of the air outlet channel (i.e., the air outlet of the atomizer), and then the upper cover is added to press the breathable oil-blocking net so that the breathable oil-blocking net is firmly fixed to the air outlet. The breathable oil-blocking net can block condensation so that the condensation is not inhaled into the mouth of the user.

[0043] Preferably, the atomizing chamber further comprises a driving air flow channel, the driving air flow channel comprises a driving air flow inlet 7 formed on the wall of the atomizing chamber, and air can enter the atomizing chamber from the driving air flow inlet 7. For example, referring to Figure 1When the atomizer is placed vertically and the air outlet direction of the atomizer is basically upward (basically upward means that the overall direction of the air outlet is upward, that is, the aerosol has an upward displacement in the vertical direction), the driving air flow inlet 7 is formed by the bottom opening of the atomizer chamber wall. When the user inhales, due to the existence of the driving air flow inlet, a driving air flow from the outside of the atomizer chamber (such as the battery compartment) will be formed to enter the atomizer chamber through the driving air flow inlet. After the air flow sensing device senses the driving air flow, the control system of the electronic cigarette controls the heating element to heat the oil in the oil storage element.

[0044] Preferably, the driving air flow inlet is provided with a breathable oil-blocking pad. The breathable oil-blocking pad is similar to the aforementioned breathable oil-blocking net, and is formed by coating an oleophobic material on a porous material. The breathable oil-blocking pad can prevent condensate from leaking from the driving air flow inlet to outside the atomizer chamber, thereby damaging the electrical components of the electronic cigarette, such as a battery or an air flow sensing device.

[0045] Preferably, at least a portion of the driving airflow channel is configured to be composed of a hollow tube that is injection molded with at least a portion of the atomizing chamber wall, and the hollow tube protrudes into the atomizing chamber. Figure 1 A part of the atomizing chamber wall and the hollow tube 9 are formed by an insert injection molding process. After obtaining the atomizing chamber wall with the hollow tube, it is fixed at the corresponding opening of the atomizing chamber wall. The channel of the hollow tube constitutes at least a part of the driving airflow channel. In addition, a breathable oil-blocking pad 8 can be arranged on the outer surface of the part of the atomizing chamber wall. When the user inhales, air flows into the atomizing chamber from the outside through the hollow tube 9. Since the hollow tube protrudes a certain height into the atomizing chamber, even if the condensate flows back into the atomizing chamber, it cannot flow out from the hollow tube, thereby protecting the electrical components of the electronic cigarette.

[0046] Preferably, there is a gap between the main body of the oil storage element and the wall of the atomization chamber. For example, the oil storage element is connected to the oil storage chamber via a liquid guide element, and there is a gap between the main body of the oil storage element and the wall of the atomization chamber, or the oil storage element extends an elongated portion to the oil storage chamber, thereby introducing the smoke oil into the oil storage element. The oil storage element can be connected to the wall of the atomization chamber through a fixed bracket, thereby fixing the oil storage element. The above specific settings can be flexibly set by those skilled in the art based on the understanding of the present invention, and it is unnecessary to repeat them. When the oil storage element fits the wall of the atomization chamber, the condensate accumulated in the atomization chamber easily flows along the wall of the atomization chamber to the oil storage element. By adopting a structure in which there is a gap between the main body of the oil storage element and the wall of the atomization chamber, even if the condensate accumulates in the atomization chamber, it is not easy to flow to the oil storage element, thereby not clogging the oil storage element.

[0047] The present invention also provides an electronic cigarette, which includes the above-mentioned atomization device.

[0048] The above is an explanation of the embodiments of the present invention. However, the present invention is not limited to the above embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An atomizing device, characterized in that: The invention comprises a housing, an oil storage chamber, an atomizing chamber, an oil storage element, a heating element, an air inlet channel, an air outlet channel and a driving air flow channel through which the air flow of a driving air flow sensing device passes; the atomizing chamber is a hollow chamber with an atomizing chamber wall, and the oil storage element and the heating element are arranged in the atomizing chamber; the air inlet channel is communicated with the atomizing chamber, and the air outlet of the air inlet channel is arranged on the atomizing chamber wall or inside the atomizing chamber, and the air outlet channel is communicated with the atomizing chamber, and the air inlet of the air outlet channel is arranged on the atomizing chamber wall or inside the atomizing chamber; at least a part of the driving air flow channel is configured to be composed of a hollow tube that is injection-molded with at least a part of the atomizing chamber wall, the hollow tube protrudes into the atomizing chamber, and a breathable oil-blocking pad is arranged on the outer surface of the atomizing chamber wall that is injection-molded with the hollow tube insert; When the air outlet of the air inlet channel is arranged inside the atomization chamber, there is a gap between the air outlet of the air inlet channel and the wall of the atomization chamber; and / or when the air inlet of the air outlet channel is arranged inside the atomization chamber, there is a gap between the air inlet of the air outlet channel and the wall of the atomization chamber.

2. The atomizing device according to claim 1, characterized in that The air inlet passage is formed by an air inlet pipe, and the air outlet passage is formed by an air outlet pipe.

3. The atomizing device according to claim 1, characterized in that The air inlet channel is arranged close to the housing of the atomizing device, and the air outlet channel is arranged close to the housing relatively to the air inlet channel.

4. The atomizing device according to claim 1, characterized in that: The air outlet of the air outlet channel constitutes the air outlet of the atomizing device, and the distance between the air inlet of the air inlet channel and the air outlet of the atomizing device is smaller than the distance between the oil storage element and the air outlet of the atomizing device.

5. The atomizing device according to claim 1, characterized in that: When the air outlet of the air inlet channel is arranged inside the atomization chamber, the portion of the air inlet channel located inside the atomization chamber is in an "L" shape, and / or, when the air inlet of the air outlet channel is arranged inside the atomization chamber, the portion of the air outlet channel located inside the atomization chamber is in an "L" shape.

6. The atomizing device according to claim 1, characterized in that: The air outlet of the air inlet channel is arranged opposite to the air inlet of the air outlet channel.

7. The atomizing device according to claim 1, characterized in that: An air-permeable oil-blocking net is arranged at the air outlet of the air outlet channel.

8. An electronic cigarette, characterized in that: The electronic cigarette comprises the atomization device according to any one of claims 1-7.

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