Oxygen-depleted heated atomizer and aerosol generating device

Abstract

An oxygen-poor heating atomizer and aerosol generating device, the atomizer comprising: a tube body for containing an aerosol substrate, a heating device arranged on the tube body, a support arranged on the outer wall of the tube body, and an atomizer shell fixed outside the support, the periphery of the top end of the support has a first extension outwardly extending, the periphery of the bottom end of the support has a second extension outwardly extending, the outer edges of the first and second extensions are fixedly connected with the atomizer shell, an air heat insulation ring is formed between the first and second extensions, the inner wall of the atomizer shell, and the outer wall of the support, the side of the atomizer shell is provided with a first air hole, the second extension is provided with an air channel communicating the inside of the tube body with the first air hole, and the air channel is provided with a one-way valve. The aerosol generating device comprises a main machine and the atomizer. The atomizer can realize oxygen-poor heating, has a simple structure, and the shell is not easy to be hot.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerosol generation, in particular to an oxygen-poor heating atomizer and an aerosol generating device. BACKGROUND

[0002] An aerosol is a gaseous dispersion system composed of solid or liquid particles suspended in a gaseous medium. The existing aerosol generating device is generally provided with an atomizer. After the user starts the device, the heating element in the atomizing core converts electrical energy into heat energy to heat the aerosol substrate in the device to form an aerosol for the user to consume.

[0003] The existing aerosol generating device generally heats the aerosol substrate in an oxygen-rich environment, and has the defects of hot shell and complex structure. SUMMARY

[0004] The purpose of the present application is to provide an oxygen-poor heating atomizer and an aerosol generating device to at least solve the above-mentioned defects in the related art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] An oxygen-poor heating atomizer comprises a tube for containing an aerosol substrate, a heating device arranged on the tube, a bracket arranged on the outer side wall of the tube, and an atomizer shell fixed to the outside of the bracket. The periphery of the top end of the bracket has a first extension extending outward, and the periphery of the bottom end of the bracket has a second extension extending outward. The outer edges of the first and second extensions are fixedly connected with the atomizer shell. An air heat insulation ring is formed between the first and second extensions, the inner wall of the atomizer shell, and the outer wall of the bracket. The side of the atomizer shell is provided with a first air hole, and the second extension is provided with an air duct communicating the inside of the tube with the first air hole. A one-way valve is arranged at the bottom end of the tube or the air duct.

[0007] In an embodiment, the heating device comprises a heating needle and a needle seat. The needle seat is fixedly embedded in the bottom end of the tube to support the heating needle in the tube. The needle seat is provided with a second air hole communicating the upper part and the lower part of the tube.

[0008] In an embodiment, the bottom of the needle seat is provided with a receiving cavity, and the one-way valve is a silica gel duckbill valve. The silica gel duckbill valve is arranged in the receiving cavity, and the edge of the silica gel duckbill valve is crimped and fixed to the bottom of the needle seat.

[0009] In an embodiment, the heating device comprises a coil arranged on the bracket opposite to the tube, and the coil and the tube constitute an electromagnetic heating device.

[0010] In an embodiment, the one-way valve is a silicone duckbill valve, which is arranged at the air inlet end of the air passage, and the edge of the silicone duckbill valve is press-fitted and fixed between the atomizer housing and the outer end of the second extension.

[0011] In an embodiment, the inner diameter of the tube body matches the outer diameter of the aerosol substrate.

[0012] In an embodiment, the atomizer housing is further provided with a cover at the top of the support, the cover is provided with a placement hole corresponding to the inlet of the tube body, and the diameter of the placement hole matches the outer diameter of the filter rod of the aerosol substrate.

[0013] In some embodiments, when the filter rod of the aerosol substrate is smoked, the one-way valve is in an open state, and when it is not smoked, the one-way valve is in a closed state.

[0014] An aerosol generating device, comprising a main machine and an atomizer, the atomizer being the oxygen-poor heated atomizer of any one of the above embodiments.

[0015] In an embodiment, the main machine comprises a main machine housing, a battery and a control circuit, the main machine housing is integrally formed with the atomizer housing, the battery is arranged at the bottom of the atomizer, and the control circuit is arranged at one side of the battery.

[0016] Compared with the prior art, the present application has at least the following beneficial effects:

[0017] By forming the first and second extensions at both ends of the support and forming the air passage at the second extension, on the one hand, an air heat insulation ring is formed between the housing and the heating device, which can effectively reduce the heat transferred to the housing, so that the housing is not easy to be hot; on the other hand, the structure of the atomizer is simplified.

[0018] The one-way valve arranged at the air inlet passage can close the air inlet passage in the heating state, and the aerosol substrate is heated in an oxygen-poor environment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of an aerosol generating device of an embodiment;

[0020] Figure 2 is a schematic view of an aerosol generating device of another embodiment;

[0021] REFERENCE SIGNS:

[0022] 1. Aerosol matrix; 2. First extension; 3. Tube body; 4. Air insulation ring; 5. Heating needle; 6. Second extension; 7. First air hole; 8. Air passage; 9. Circuit board; 10. Battery; 11. Main unit housing; 12. Pressure ring; 13. One-way valve; 14. Receptacle; 15. Needle seat; 16. Second air hole; 17. Support; 18. Atomizer housing; 19. Cover; 20. Coil. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 An aerosol generating device is shown, wherein the atomizer is an oxygen-deficient heated atomizer.

[0025] The atomizer includes: a tube 3 for containing an aerosol matrix 1, a heating device disposed on the tube 3, a bracket 17 disposed on the outer side wall of the tube 3, and an atomizer housing 18 fixed to the bracket 17.

[0026] The bracket 17 has a first extension 2 extending outward at the top edge and a second extension 6 extending outward at the bottom edge. The outer edges of the first and second extensions are fixedly connected to the atomizer housing 18. The fixed connection methods include, but are not limited to, bonding, snap-fitting, threaded connection, and interference fit. An air insulation ring 4 is formed between the first extension 2, the second extension 6, the inner wall of the atomizer housing 18, and the outer wall of the bracket 17. A first air hole 7 is provided on the side of the atomizer housing 18. An air passage 8 is provided on the second extension 6 to connect the inside of the tube 3 with the first air hole 7. A one-way valve 13 is provided at the bottom of the tube 3.

[0027] In the aforementioned atomizer, when the rod-shaped aerosol matrix 1 is inserted into the tube 3 and heating is activated, the one-way valve 13 is in a closed state, preventing outside air from entering the tube 3 and the aerosol matrix 1. Therefore, the aerosol matrix 1 is heated in an oxygen-deficient environment. When the filter rod of the aerosol matrix 1 is drawn in, the negative pressure generated by the suction force opens the one-way valve 13, allowing outside air to enter through the first air hole 7, pass through the air passage 8 and the one-way valve 13, and then enter the aerosol matrix 1, mixing with the aerosol generated by the heating of the aerosol matrix 1 and being inhaled together. It is evident that the one-way valve 13 allows the atomizer to heat the aerosol matrix in an oxygen-deficient environment.

[0028] The air insulation ring 4 formed in the atomizer ensures that the heat generated by the heating device must pass through this air insulation ring 4 before it can be transferred to the atomizer housing 18. Since air has low thermal conductivity, it can provide better insulation, thus reducing the heat transferred to the atomizer housing 18 and making it less likely for the atomizer housing 18 to get hot.

[0029] In addition, the support 17 is used not only to support the tube 3, but also to construct the air insulation ring 4, and is integrated with the air passage 8, which makes the components of the atomizer reduced, the structure of the atomizer simple, and the manufacturing and assembly of the atomizer easier.

[0030] In an embodiment, the heating device includes a heating needle 5 and a needle seat 15, the needle seat 15 is fixedly embedded in the bottom end of the tube 3, and the heating needle 5 is supported in the tube 3. After the aerosol substrate 1 is inserted into the tube 3, the heating needle 5 penetrates into the aerosol substrate 1, and the heating needle 5 includes a resistor and / or a heating circuit, which converts electrical energy into heat energy after being powered on, so as to heat the aerosol substrate 1. The needle seat 15 is provided with a second air hole 16 communicating the upper part and the lower part of the tube 3. External air enters the aerosol substrate 1 from the second air hole 16 after passing through the one-way valve 13.

[0031] In an embodiment, the bottom of the needle seat 15 is provided with a receiving cavity 14, and the one-way valve 13 is a silica gel duckbill valve, which is arranged in the receiving cavity 14, and the edge of the silica gel duckbill valve is press-fitted and fixed on the bottom of the needle seat 15. This structure uses the internal space of the needle seat 15 to accommodate the one-way valve 13, so that the longitudinal height of the atomizer can be smaller. In addition, the suction force acts on the one-way valve 13 after passing through the aerosol substrate 1, and when the suction force is small, the one-way valve 13 may not be turned on. After the silica gel duckbill valve is used, the valve port of the silica gel duckbill valve is a symmetrical structure, which is easier to turn on, so that the atomizer has the characteristics of better reliability.

[0032] The tube 3 is preferably made of metal or ceramic material.

[0033] In an embodiment, the inner diameter of the tube 3 is preferably matched with the diameter of the aerosol substrate 1. By this structure, air can be prevented from entering between the aerosol substrate 1 and the tube 3.

[0034] In an embodiment, the atomizer shell 18 is further provided with a cover 19 on the top of the support 17, and the cover 19 can be fixed with the atomizer shell 18 by screwing, clamping, bonding or other fixing processes. The cover 19 is provided with a placement hole corresponding to the inlet of the tube 3, and the diameter of the placement hole is matched with the outer diameter of the filter rod of the aerosol substrate 1. In this embodiment, the filter rod of the aerosol substrate 1 can form a seal with the placement hole on the cover 19, so as to prevent air from entering the tube 3 from the placement hole.

[0035] Figure 1A main machine is arranged below the atomizer, and the atomizer and the main machine combine to form an aerosol generating device. The main machine includes a main machine shell 11, a battery 5, and a control circuit, and the control circuit is arranged on a circuit board 4. The main machine shell 11 is integrally formed with the atomizer shell 18, the battery 5 is fixed at the bottom of the atomizer, the circuit board 4 is fixed on one side of the battery 5 in the main machine shell 11, and the main machine shell 11 is provided with a power switch. After the power switch is turned on, the power supply circuit of the heating needle 5 is connected, the battery 10 supplies power to the heating needle 5, the heating needle 5 outputs heat, and the aerosol substrate 1 is heated. When the filter rod of the aerosol substrate 1 is smoked, the one-way valve 13 is turned on, the external air enters from the first air hole 7, passes through the air channel 8 and the one-way valve 13, and then enters the aerosol substrate 1, mixes with the aerosol generated by heating the aerosol substrate 1, and is smoked together.

[0036] It can be seen that the aerosol generating device has simple structure and is convenient to use, can heat the aerosol substrate in a lean oxygen environment, and the shell is not easy to be hot.

[0037] Figure 2 Another aerosol generating device is shown, and the atomizer in the aerosol generating device is also a lean oxygen heating atomizer.

[0038] Referring to Figure 2 The atomizer includes a tube body 3 for containing an aerosol substrate, a heating device arranged on the tube body 3, a support 17 arranged on the outer side wall of the tube body 3, and an atomizer shell 18 fixed outside the support 17.

[0039] The outer edge of the first and second extension parts is fixedly connected with the atomizer shell 18, and the fixed connection mode that can be adopted includes but is not limited to bonding, clamping, threaded connection, interference fit, etc. The inner wall of the first extension part 2, the second extension part 6, the atomizer shell 18, and the outer wall of the support 17 form an air heat insulation ring 4. The side of the atomizer shell 18 is provided with a first air hole 7, the second extension part 6 is provided with an air channel 8 communicating with the inside of the tube body 3 and the first air hole 7, and a one-way valve 13 is arranged at one end of the air channel 8 close to the first air hole 7.

[0040] When the aerosol substrate 1 in the form of a rod is inserted into the tube 3 and the heating is started, the one-way valve 13 is in a closed state, and external air cannot enter the tube 3 and the aerosol substrate 1, so the aerosol substrate 1 is heated in an oxygen-poor environment. When the filter rod of the aerosol substrate 1 is smoked, the negative pressure generated by the suction force makes the one-way valve 13 conductive, and external air enters from the first air hole 7, passes through the air channel 8 and the one-way valve 13, and then enters the aerosol substrate 1, mixes with the aerosol generated by heating the aerosol substrate 1, and is smoked together. It can be seen that by using the one-way valve 13, the aerosolizer can heat the aerosol substrate 1 in an oxygen-poor environment.

[0041] The air insulation ring 4 formed in the aerosolizer can make the heat generated by the heating device pass through the air insulation ring 4 before being transmitted to the aerosolizer housing 18. Because the thermal conductivity of air is small, it can achieve better heat insulation effect, so the heat transmitted to the aerosolizer housing 18 can be reduced, so that the aerosolizer housing 18 is not easy to be hot.

[0042] In addition, the bracket 17 is not only used to support the tube 3, but also used to construct the air insulation ring 4, and the air channel 8 is integrated, which can reduce the components of the aerosolizer and simplify the structure of the aerosolizer, and the manufacturing and assembly of the aerosolizer become easier.

[0043] Reference Figure 2 In this embodiment, the heating device includes a coil 20, the coil 20 is wound and fixed on the bracket 17 and opposite to the tube 3, and the coil 20 and the tube 3 constitute an electromagnetic heating device. The tube 3 is preferably iron or iron alloy, or other materials that can be affected by the magnetic field of the coil to generate heat. When the coil 20 is powered, the electromagnetic heating effect heats the tube 3, and the tube 3 transmits heat to the aerosol substrate 1 inserted therein, thereby heating the aerosol substrate 1 to generate aerosol.

[0044] In this embodiment, the one-way valve 13 is a silica gel duckbill valve, and the edge of the silica gel duckbill valve is crimped and fixed between the aerosolizer housing 18 and the outer end of the second extension 6. The suction force acts on the one-way valve 13 after passing through the aerosol substrate 1, and when the suction force is small, the one-way valve 13 may not be conductive. After using the silica gel duckbill valve, the valve port of the silica gel duckbill valve is a symmetrical structure, which is more easy to conduct, so the aerosolizer has the characteristics of better reliability.

[0045] In this embodiment, the aerosolizer housing 18 is also provided with a cover 19 on the top of the bracket 17, the cover 19 has a placement hole for the aerosol substrate 1 to enter the tube 3, and the hole diameter of the placement hole matches the outer diameter of the filter rod of the aerosol substrate 1.

[0046] Figure 2A main machine is arranged below the atomizer, and the atomizer and the main machine combine to form the aerosol generating device. The main machine includes a main machine housing 11, a battery 10, and a control circuit, and the control circuit is arranged on a circuit board 9. The main machine housing 11 is integrally formed with the atomizer housing 18, the battery 10 is fixed at the bottom of the atomizer, the circuit board 9 is fixed on one side of the battery 10 in the main machine housing 11, and the main machine housing 11 is provided with a power switch. After the power switch is turned on, the power supply loop of the coil 20 is connected, the battery supplies power to the coil 20, the coil 20 generates a magnetic field to heat the tube body 3, the heat of the tube body 3 is transferred to the aerosol substrate 1 to heat the aerosol substrate. When the filter rod of the aerosol substrate 1 is smoked, the one-way valve 13 is opened, the external air enters from the first air hole 7, passes through the one-way valve 13 and the air channel 8, and then enters the aerosol substrate 1, mixes with the aerosol generated by heating the aerosol substrate, and is smoked together.

[0047] It can be seen that the aerosol generating device has simple structure and is convenient to use, can heat the aerosol substrate in an oxygen-poor environment, and the shell is not easy to be hot.

[0048] Unless otherwise specified, the above-mentioned "first", "second" and the like similar terms are used to distinguish different devices with the same name, and cannot be interpreted as containing the meaning of sequence, primary and secondary, importance, etc.

[0049] The above-mentioned specific embodiments are used to explain the present application in detail, which are limited to help the skilled in the art to understand the content of the present application, and cannot be understood as the limitation of the protection scope of the present application. Various decorations, equivalent transformations and the like of the above-mentioned solutions by the skilled in the art under the concept of the present application should be included in the protection scope of the present application.

Claims

1. An oxygen-depleted heated atomizer, comprising: A tube (3) for containing an aerosol substrate, a heating device arranged in the tube, a support (17) arranged on the outer wall of the tube, and an atomizer housing (18) fixed to the outside of the support, characterized in that the periphery of the top end of the support has a first extension (2) extending outward, the periphery of the bottom end of the support has a second extension (6) extending outward, the outer edges of the first and second extensions are fixedly connected with the atomizer housing, an air heat insulation ring (4) is formed between the first and second extensions, the inner wall of the atomizer housing, and the outer wall of the support, the side of the atomizer housing is provided with a first air hole (7), the second extension is provided with an air channel (8) communicating with the inside of the tube and the first air hole, and a one-way valve (13) is arranged at the bottom end of the tube or the air channel.

2. The lean-oxygen heated atomizer of claim 1 wherein, The heating device comprises a heating needle (5) and a needle seat (15), the needle seat is fixedly embedded in the bottom end of the tube to support the heating needle in the tube, and the needle seat is provided with a second air hole (16) communicating with the upper part and the lower part of the tube.

3. The lean-oxygen heated atomizer of claim 2, wherein, The bottom of the needle seat is provided with a receiving cavity (14), the one-way valve is a silica gel duckbill valve, the silica gel duckbill valve is arranged in the receiving cavity, and the edge of the silica gel duckbill valve is press-fitted and fixed to the bottom of the needle seat.

4. The lean-oxygen heated atomizer of claim 1 wherein, The heating device comprises a coil (20) arranged on the support and opposite to the tube (3), and the coil and the tube constitute an electromagnetic heating device.

5. The lean-oxygen heated atomizer of claim 1 wherein, The one-way valve is a silica gel duckbill valve, the silica gel duckbill valve is arranged at the air inlet end of the air channel, and the edge of the silica gel duckbill valve is press-fitted and fixed between the atomizer housing and the outer end of the second extension.

6. The lean-oxygen heated atomizer of claim 1 wherein, The inner diameter of the tube matches the outer diameter of the aerosol substrate.

7. The lean-oxygen heated atomizer of claim 1 wherein, The atomizer housing is further provided with a cover (19) at the top of the support, the cover is provided with an insertion hole corresponding to the inlet of the tube, and the diameter of the insertion hole matches the outer diameter of the filter rod of the aerosol substrate.

8. The lean-oxygen heated atomizer of claim 1 wherein, When the filter rod of the aerosol substrate is smoked, the one-way valve is in an open state, and when the filter rod is not smoked, the one-way valve is in a closed state.

9. An aerosol generating device comprising a main body and an atomizer, characterized in that, The atomizer is an oxygen-poor heated atomizer as claimed in any one of claims 1 to 8.

10. An aerosol generation device according to claim 9, wherein, The host comprises a host housing (11), a battery (10), and a control circuit, the host housing is integrally formed with the atomizer housing, the battery is arranged at the bottom of the atomizer, and the control circuit is arranged on one side of the battery.

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