Protective film for smoke condensation, smoke cartridge and electronic cigarette

Abstract

The utility model discloses a protective film used for smoke condensation, a smoke cartridge and an electronic cigarette, and belongs to the field of electronic cigarettes, and the protective film used for smoke condensation comprises a metal supporting net and a fiber film; the fiber membrane is attached to the metal supporting net; and the surface of the fiber membrane is coated with an oleophobic nano material. The liquid smoke condensate can be separated while air circulation in the air channel is guaranteed, and erosion and damage of the liquid smoke condensate to the electronic cigarette are effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electronic cigarette, especially a protective film for smoke condensation, a cartridge and an electronic cigarette. BACKGROUND

[0002] The essence of the electronic cigarette is that the airflow sensor acts as a switch when being smoked, airflow movement is converted into an electrical signal, and the battery supplies power to the atomization unit after the circuit is connected, realizing smoke atomization through the conversion of electric energy-thermal energy.

[0003] In daily practice, the existing technical solutions have the following problems:

[0004] The electronic cigarettes on the market currently generally have the problem of oil leakage caused by condensate. Specifically, condensate is generated in the smoke channel when people smoke electronic cigarettes, and the condensate flows back to the inside of the cigarette rod due to gravity, causing erosion and damage to the airflow sensor and the PCB circuit assembly. In addition, users may blow the electronic cigarette in the actual smoking process, causing more smoke to enter the channel and further causing more condensate in the inside of the cigarette rod.

[0005] To solve the problem of oil leakage, the utility model with the application number CN201621066175.3 discloses an oil leakage-proof electronic cigarette atomizer. PTFE oil-proof films are installed at both ends of the air passage. However, in the actual smoking process, the condensate of about 10 puffs of smoke will block the PTFE oil-proof film, and the airflow cannot pass smoothly, causing the electronic cigarette to not work normally. This method does not have mass production and cannot completely solve the problem of oil leakage caused by condensate in electronic cigarettes.

[0006] Therefore, it is necessary to provide a new technical solution to solve the above problems. UTILITY MODEL CONTENT

[0007] To solve the above technical problems, the present application provides a protective film for smoke condensation, a cartridge and an electronic cigarette, which can separate liquid smoke condensate while ensuring air circulation in the air passage, effectively preventing liquid smoke condensate from eroding and damaging the electronic cigarette.

[0008] A protective film for electronic cigarette smoke condensation, comprising: a metal support net and a fiber film; the fiber film is attached to the metal support net; the surface of the fiber film is coated with an oil-repellent nano material.

[0009] Preferably, the metal support net is 80-500 mesh.

[0010] Preferably, the fiber film is combined with the metal support net through an electrospinning process.

[0011] Preferably, the protective film has a gas permeability of 10000-80000ml / min / cm2 at 1Kpa, and a gas resistance of 50-800Pa, and a particle interception efficiency of 0.02-2μm of no less than 90%.

[0012] According to another aspect of the present application, a cartridge is also provided, comprising the protective film; the cartridge further comprises a mouthpiece, an oil reservoir, an atomizer, a cartridge base, and an air channel for drawing air to the atomizer; the air channel is communicated with the atomizer through the cartridge base; the protective film covers the air channel; and the protective film is arranged obliquely relative to a cross section of the cartridge.

[0013] Preferably, the cartridge base comprises an oblique portion through which the air channel is communicated; the upper surface of the oblique portion is an oblique plane; and the protective film is fixedly connected with the oblique plane and covers all the air channel outlets on the oblique plane.

[0014] Preferably, the protective film is fixedly connected with the oblique plane by means of hot melting, welding, gluing or a fixing connector.

[0015] Preferably, the cartridge further comprises an oil collecting cavity for collecting liquid smoke condensate that rolls off the surface of the protective film; and the oil collecting cavity is provided with an oil absorbing member for absorbing oil by capillary action.

[0016] Preferably, the acute angle of the oblique plane relative to the cross section of the cartridge ranges from 5° to 45°.

[0017] According to another aspect of the present application, an electronic cigarette is also provided, characterized in that comprising the cartridge and a cigarette rod; and the cartridge is detachably fixedly connected with the cigarette rod.

[0018] Compared with the prior art, the present application has at least the following beneficial effects:

[0019] The present application can separate liquid smoke condensate while ensuring air circulation in the airway, effectively avoiding the erosion and damage of liquid smoke condensate to the electronic cigarette. BRIEF DESCRIPTION OF DRAWINGS

[0020] Some specific embodiments of the present application will be described in detail hereinafter with reference to the drawings, which are presented by way of illustration and not of limitation. The same reference numbers in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale.

[0021] In the drawings:

[0022] Figure 1It is cross section structure schematic view of the protective film for smoke condensation of the utility model.

[0023] Figure 2 It is explosion view of the protective film for smoke condensation of the utility model.

[0024] Figure 3 It is front structure schematic view of the cartridge of the utility model.

[0025] Figure 4 It is plan view of the cartridge of the utility model.

[0026] Figure 5 It is Figure 4 Sectional view of A-A position.

[0027] Figure 6 It is Figure 5 Sectional view of B-B position.

[0028] Figure 7 It is Figure 6 Local enlarged view of C position.

[0029] Figure 8 It is structure schematic view of the electronic cigarette of the utility model.

[0030] Among them, the above-mentioned drawing includes the following figure marks:

[0031] 1, metal support net; 2, fiber film; 10, mouthpiece; 20, oil storage bin; 21, oil storage bin shell; 22, oil storage cavity; 30, atomizer; 40, protective film; 50, cartridge base; 51, oil collection cavity; 52, air passage; 53, inclined part; 54, inclined plane; 60, oil suction accessory; 70, sealing support; 80, oil bin sealing element; 90, atomizer sealing pad; 100, cartridge; 200, cigarette rod. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Embodiment 1

[0034] As Figure 1 And Figure 2 A protective film for electronic cigarette smoke condensation, comprising: metal support net 1 and fiber film 2, fiber film 2 is attached to metal support net 1, and fiber film 2 surface is coated with oil-repellent nanomaterial.

[0035] The metal support net 1 can be made of copper material, aluminum material, silver material, iron material, etc.

[0036] The metal support net 1 is preferably made of copper material with good heat dissipation performance and relatively low cost.

[0037] It should be noted that, under the premise of meeting the requirement that the protective film can effectively condense the smoke in the electronic cigarette, the metal support net 1 can also be made of other metal materials with good heat dissipation performance, such as aluminum alloy material, magnesium alloy material, etc.

[0038] The fiber film 2 is made of one or more of polyacrylonitrile, polymethyl methacrylate, polystyrene, polyurethane, acetate fiber, and polyimide, and is made by electrospinning process.

[0039] The oil-repellent nano material coated on the surface of the fiber film 2 can be nano silicon dioxide, fluorosilicon resin nano coating, modified resin nano coating material, fluorine-containing polymer nano coating, etc. In addition, the oil-repellent material that can repel the oil formed by the smoke of the electronic cigarette can also be coated on the surface of the fiber film 2.

[0040] The super-hydrophobic treatment reagent coated on the surface of the fiber film 2 is preferably an ethanol reagent solution of nano silicon dioxide.

[0041] Preferably, the metal support net 1 is 80-500 mesh.

[0042] Preferably, the fiber film 2 is combined with the metal support net 1 by electrospinning process. The fibers formed during the electrospinning process will be inserted into the mesh of the metal support net 1, and the fiber film 2 will be formed on the surface of the metal support net 1.

[0043] Preferably, the air permeability of the protective film under the condition of 1Kpa is 10000-80000ml / min / cm2, the air resistance is 50-800Pa, and the interception efficiency for 0.02-2μm particles is not less than 90%.

[0044] Example 2

[0045] Based on the same inventive concept, the embodiment provides a manufacturing method for an electronic cigarette smoke condensation protective film, which is used to manufacture the smoke condensation protective film in Example 1, and includes the following steps:

[0046] S1, according to the design requirements, select a metal support net with a predetermined size and specification, and ultrasonically clean the metal support net for 30-120min.

[0047] Specifically, select 80-500 mesh metal support net as raw material for ultrasonic cleaning, to remove the surface stains and rust, to provide the necessary support for the subsequent process and the basis of the attached conditions.

[0048] S2, the cleaned metal support net is installed on the spinning equipment for spinning, so that the fiber membrane is formed on the metal support net.

[0049] S3, using super-hydrophobic treatment agent, and using soaking or spraying treatment method to the fiber membrane for super-hydrophobic treatment.

[0050] Preferably, the cleaned metal support net is installed on the spinning equipment for spinning, so that the fiber membrane is formed on the metal support net, using the spinning liquid to spin by electrospinning process.

[0051] Specifically, the spinning liquid is one or more of polyacrylonitrile, polymethyl methacrylate, polystyrene, polyurethane, acetate fiber, polyimide. That is, any one of polyacrylonitrile, polymethyl methacrylate, polystyrene, polyurethane, acetate fiber, polyimide can be selected as the spinning liquid, or two or more of polyacrylonitrile, polymethyl methacrylate, polystyrene, polyurethane, acetate fiber, polyimide can be mixed as the spinning liquid.

[0052] Further, the solid content of the spinning liquid is 5-40%, and the viscosity under the condition of 25℃ is 5000-25000CPS.

[0053] In the process of using the spinning liquid to spin by electrospinning process, the temperature range is 22-28℃, the humidity range is 30%-55%, the positive high voltage range is 10-50Kv, the negative high voltage range is-30-0Kv, the receiving distance range is 10-35cm, and the liquid pushing speed is 1-50ml / H.

[0054] Further, the super-hydrophobic treatment agent includes nano-silica ethanol reagent solution, and the solid content of the nano-silica ethanol reagent solution is 0.5%-6%, and the nano-particle size range is 5-16nm.

[0055] Further, the super-hydrophobic treatment agent includes nano-silica ethanol reagent solution, and the solid content of the nano-silica ethanol reagent solution is 0.5%-6%, and the nano-particle size range is 5-16nm.

[0056] In this embodiment, the protective film for smoke condensation prepared by the method is tested. In the test, the atomization device simulates the normal puffing of the electronic cigarette, and the surface state and air permeability of the protective film before and after the test are compared. Among them, the atomization solvent adopts the national standard tobacco oil, the atomization time is 1 h, and the solvent consumption is 12 ml.

[0057] Table 1 Test results of the protective film for smoke condensation prepared

[0058]

[0059] The test results show that the protective film for smoke condensation prepared by the method can make the condensate smoothly slide off under the condition of simulating the normal puffing of the electronic cigarette, and effectively avoid the adhesion of foreign matters when placed obliquely. At the same time, according to the air permeability data, the minimum air permeability difference of the protective film for smoke condensation prepared by the method under the condition of simulating the normal puffing of the electronic cigarette is even up to 30 ml / min / cm 2 , which has a good effect of only 0.09% reduction before and after the test.

[0060] Example 3

[0061] Based on the same inventive concept, as shown in Figures 3-7 , this embodiment provides a cartridge including the protective film 40 for smoke condensation in Example 1, which condenses the smoke by using the protective film 40, prevents the backflow of the smoke condensate in the cartridge, and further avoids the corrosion or damage of the smoke condensate to the components inside the electronic cigarette.

[0062] Further, the cartridge further includes a mouthpiece 10, an oil storage tank 20, an atomizer 30, a cartridge base 50, and an air channel 52 for sucking air to the atomizer 30; the air channel 52 communicates with the atomizer 30 through the cartridge base 50; the protective film 40 covers the air channel 52; and the protective film 40 is arranged obliquely relative to the cross section of the cartridge.

[0063] Specifically, the oil storage tank 20 includes an oil storage tank shell 21 and an oil storage cavity 22 arranged in the oil storage tank shell 21, and the oil storage cavity 22 is used for storing tobacco oil. The atomizer 30 is arranged below the oil storage tank 20 and has a plurality of interconnected holes inside. The atomizer 30 is in contact with the tobacco oil in the oil storage cavity 22, and under the capillary action, the tobacco oil can enter the inside of the atomizer 30. At the same time, the atomizer 30 has a heating device inside, which can heat the tobacco oil in the holes of the atomizer 30 when the electronic cigarette is puffed, so that the tobacco oil changes into smoke.

[0064] In addition, the cartridge further comprises a sealing support 70 for fixing the atomizer 30, the sealing support 70 is fixedly arranged in the oil storage cavity 21, and the atomizer 30 is fixedly connected to the lower part of the sealing support 70. An oil storage cavity sealing element 80 is arranged between the sealing support 70 and the oil storage cavity 20, so as to prevent leakage of the tobacco tar between the sealing support 70 and the oil storage cavity 22.

[0065] Further, the cartridge further comprises an atomizer sealing gasket 90 arranged between the sealing support 70 and the atomizer 30, so as to prevent leakage of the tobacco tar between the sealing support 70 and the atomizer 30.

[0066] It should be noted that the lower part of the oil storage cavity 22 has a tobacco tar flow channel. Although the cartridge is provided with the sealing support 70, the oil storage cavity sealing element 80 and the atomizer sealing gasket 90, the tobacco tar flow channel and the atomizer 30 are not blocked, so that the atomizer 30 is kept in contact with the tobacco tar in the oil storage cavity 20, thereby ensuring that the tobacco tar in the oil storage cavity 22 smoothly enters the hole in the atomizer 30, and the effective atomization of the tobacco tar is ensured.

[0067] Further, the cartridge base 50 comprises an inclined part 53 provided with the air channel 52, and the upper surface of the inclined part 53 is an inclined plane 54; the protective film 40 is fixedly connected to the inclined plane 54 and covers all the outlets of the air channel 52 on the inclined plane 54.

[0068] Preferably, the protective film 40 is fixedly connected to the inclined plane 54 by means of hot melting, welding, gluing or by using a fixing connector.

[0069] As another embodiment of the present application, the cartridge further comprises an oil collecting cavity 51 for collecting the liquid tobacco smoke condensate rolled on the surface of the protective film 40; the oil collecting cavity 51 is provided with an oil absorbing member 60 for absorbing the oil by capillary phenomenon.

[0070] It should be noted that the natural fiber absorbing material and the non-polar absorbing material capable of absorbing oil by capillary phenomenon can be used to manufacture the oil absorbing member 60. In addition, the oil absorbing member 60 is made of two or more than two kinds of materials. For example, the natural fiber material can be cotton, coconut fiber, etc., the synthetic material can be polypropylene fiber, polyurethane foam, etc., and the inorganic material can be activated carbon, diatomite, etc. In addition, when the oil absorbing member 60 is a granular material, the material can be fixed by high temperature heating, sintering, bonding, mechanical compression, etc., so as to ensure that the oil absorbing member 60 can be fixed in the oil collecting cavity, thereby preventing the particles in the oil absorbing member 60 from falling off.

[0071] Embodiment 4

[0072] Based on the same inventive concept, asFigure 8 As shown, and described in connection with Figures 3-7 The present embodiment provides an electronic cigarette, comprising the cartridge 100 in claim embodiment 3 and the cigarette rod 200. Wherein, the cartridge 100 and the cigarette rod 200 are detachably fixedly connected.

[0073] In the present embodiment, the electronic cigarette containing the protective film 40 for smoke condensation and the electronic cigarette without the protective film are tested. Wherein, the test samples are selected from the electronic cigarettes with and without the fiber film assembly, 5 pcs for each, a total of 10 pcs samples. In the test, the electronic cigarette is actually smoked, and the cartridge is replaced with a brand new cartridge after the oil in the cartridge is consumed. After smoking 1 cartridge and 5 cartridges respectively, whether there is oil stain caused by condensate in the joint of the cartridge and the cigarette rod and the airway of the cigarette rod is observed and compared, and the test results are shown in Table 2.

[0074] Table 2 Comparison of electronic cigarette test results

[0075]

[0076] From the test results, the electronic cigarette atomizer front end of the air passage installed with the protective film for smoke condensation has no oil stain, and the protection effect of the smoke condensate is remarkable.

[0077] For the convenience of description, spatial relative terms such as "above", "upper", "upper surface", "upper", etc. can be used here to describe the spatial position relationship of one device or feature with other devices or features as shown in the figure. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the figure. For example, if the device in the figure is inverted, the device described as "above" or "above" other devices or structures will be positioned "below" or "below" other devices or structures. Thus, the example term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used here is interpreted accordingly.

[0078] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, it means that the features, steps, operations, devices, components and / or combinations thereof are present.

[0079] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and in the above-described drawings are used only for distinguishing between similar objects and do not necessarily have to describe a specific sequential or chronological order. It is to be understood that the data so distinguished can be interchanged, under appropriate circumstances, such that the embodiments of the present application described herein can be practiced in other than the illustrated or described order.

[0080] The preferred embodiments of the present application have been described above with the specific details. Obviously, the present application can be carried out without the specific details. It is to be understood that the above-described embodiments are only used to illustrate the present application, and the present application can be modified and changed in various ways by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A protective film for condensation of aerosol of an electronic cigarette, characterized in that, The protective film comprises: a metal supporting net and a fiber membrane; the fiber membrane is attached to the metal supporting net; the surface of the fiber membrane is coated with oleophobic nanomaterials.

2. The protective film according to claim 1, wherein The metal supporting net is 80-500 mesh.

3. The protective film according to claim 1 or 2, characterized in that, The fiber membrane is combined with the metal supporting net through an electrospinning process.

4. The protective film of claim 1, wherein The air permeability of the protective film under 1Kpa is 10000-80000ml / min / cm2; the air resistance of the protective film is 50-800Pa, and the interception efficiency for 0.02-2μm particles is not less than 90%.

5. A cartridge, characterized by, The cigarette cartridge comprises the protective film according to any one of claims 1-4; the cigarette cartridge further comprises a mouthpiece, an oil storage compartment, an atomizer, a cartridge base and an air channel for sucking air to the atomizer; the air channel is communicated with the atomizer through the cartridge base; the protective film covers the air channel. The protective film is arranged obliquely relative to the cross section of the cartridge.

6. The cartridge of claim 5, wherein, The cartridge base comprises an inclined part through which the air channel passes; the upper surface of the inclined part is an inclined plane; the protective film is fixedly connected with the inclined plane and covers all the air channel outlets on the inclined plane.

7. The cartridge of claim 6, wherein, The protective film is fixedly connected with the inclined plane through hot melting, welding, gluing or by means of a fixing connector.

8. The cartridge of claim 7, wherein, The cartridge further comprises an oil collecting cavity for collecting liquid smoke condensate rolled on the surface of the protective film; the oil collecting cavity is provided with an oil absorbing member for absorbing oil by capillary phenomenon.

9. The cartridge of claim 6, wherein, The acute angle of the inclined plane relative to the cross section of the cartridge ranges from 5° to 45°.

10. An electronic cigarette, characterized in that, The cigarette cartridge according to any one of claims 5-9 and a cigarette rod; the cigarette cartridge and the cigarette rod are detachably fixedly connected.

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