ELECTRONIC CIGARETTE
An electronic cigarette includes an airflow sensing part, a first pressure change unit, a second pressure change unit, an outlet assembly, a pneumatic switch, and a heating element. The heating element is disposed in the first pressure change unit. The pneumatic switch is disposed in the airflow sensing part to activate the heating element to work. The airflow sensing part communicates with the second pressure change unit. The first pressure change unit and the second pressure change unit separately communicate with the outlet assembly.
Pursuant to 35 U.S.C. § 119 and the Paris Convention Treaty, this application claims foreign priority to Chinese Patent Application No. 202110417574.9 filed Apr. 19, 2021, and to Chinese Patent Application No. 202120795870.8 filed Apr. 19, 2021. The contents of all of the aforementioned applications, including any intervening amendments thereto, are incorporated herein by reference. Inquiries from the public to applicants or assignees concerning this document or the related applications should be directed to: Matthias Scholl P.C., Attn.: Dr. Matthias Scholl Esq., 245 First Street, 18th Floor, Cambridge, Mass. 02142.
BACKGROUNDThe disclosure relates to an electronic cigarette.
The airflow channel of the atomizer of a conventional electronic cigarette tends to be blocked over time by condensed e-liquid. As a result, the pneumatic switch that turns on the heating element malfunctions.
SUMMARYThe disclosure provides an electronic cigarette comprising an airflow sensing part, a first pressure change unit, a second pressure change unit, an outlet assembly, a pneumatic switch, and a heating element; the heating element is disposed in the first pressure change unit; the pneumatic switch is disposed in the airflow sensing part to activate the heating element to work; the airflow sensing part communicates with the second pressure change unit; and the first pressure change unit and the second pressure change unit separately communicate with the outlet assembly.
In a class of this embodiment, the airflow sensing part further communicates with the first pressure change unit.
In a class of this embodiment, the electronic cigarette comprises one outlet assembly, and the first pressure change unit and the second pressure change unit separately communicate with the one outlet assembly; or the electronic cigarette comprises two outlet assemblies independent of each other, and the two outlet assemblies communicate with the first pressure change unit and the second pressure change unit, respectively.
In a class of this embodiment, both the first pressure change unit and the second pressure change unit comprise hollow channels; the first pressure change unit comprises a first outlet communicating with the outlet assembly and the second pressure change unit comprises a second outlet communicating with the outlet assembly; and the cross-sectional area of the first outlet is 3-200 times that of the second outlet.
In a class of this embodiment, the electronic cigarette comprises a housing and an atomizer; the atomizer comprises an e-liquid tank dispose in the housing; a first channel is formed between an inner wall of the housing and an outer wall of the e-liquid tank.
In a class of this embodiment, the e-liquid tank is hollow; and two ends of the e-liquid tank are provided with a first seal and a second seal, respectively.
In a class of this embodiment, the e-liquid tank comprises a first cavity for storing e-liquid; a mouthpiece cover is disposed on one side of the first seal away from the first cavity; a second channel is formed between the mouthpiece cover and the first seal; the second channel communicates with the first channel, thereby forming the second pressure change unit.
In a class of this embodiment, an air tube is inserted in the e-liquid tank; the first cavity is formed by an outer wall of the air tube, an inner wall of the e-liquid tank, the first seal, and the second seal; and the heating element is disposed in the air tube.
In a class of this embodiment, the first seal and the second seal each comprise a through hole; one end of the air tube is inserted into the through hole of the first seal and the other end of the air tube is inserted into the through hole of the second seal; a third channel is formed by the through hole of the first seal, the through hole of the second seal, and an inner passage of the air tube.
In a class of this embodiment, the mouthpiece cover is disposed on one end of the housing and comprises an inhaling port disposed opposite to the third channel; and the outlet assembly comprises the inhaling port communicating with the second channel and the third channel.
In a class of this embodiment, a battery is disposed one side of the second seal away from the first cavity; a fourth channel is formed between the battery and the second seal; the third channel communicates with the fourth channel to form the first pressure change unit.
In a class of this embodiment, the battery is disposed in the housing; a fifth channel is formed between an outer wall of the battery and the inner wall of the housing; both the first channel and the fourth channel communicate with the fifth channel; the fifth channel is disposed opposite to the first channel.
In a class of this embodiment, the housing comprises a bottom end and an air inlet disposed on the bottom end; a sixth channel is formed between the air inlet and the fifth channel; the pneumatic switch is disposed in the fifth channel or the sixth channel; the fifth channel, the sixth channel, and the air inlet are connected one by one to form the airflow sensing part.
The following advantages are associated with the electronic cigarette of the disclosure: the first pressure change unit communicates with the second pressure change unit to ensure that the pneumatic switch triggers the heating element to work, which prevents the electronic cigarette from being unusable.
In the drawings, the following reference numbers are used: 1. E-liquid tank; 3. Silicone member; 4. Heating element; 5. Second seal; 7. Second conductive member; 10. First conductive member; 14. Housing; 15. Battery; 16. Fixing member; 17. Pneumatic switch; 18. Control board; 19. Bottom cover; 20. First seal; 101. Inhaling port; 102. Mouthpiece cover; 103. Air tube; 104. Hollow passage; 105. First cavity; 106. Connecting member; 107. First groove; 110. First outlet; 120. Second outlet; 200. Second channel; 301. Third channel; 400. Fourth channel; 500. Fifth channel; 501. Through hole; 600. Sixth channel; 901. First channel; 1401. Second cavity; 1601. Hole; and 1901. Air inlet.
DETAILED DESCRIPTIONTo further illustrate the disclosure, embodiments detailing an electronic cigarette are described below. It should be noted that the following embodiments are intended to describe and not to limit the disclosure.
An electronic cigarette comprises an airflow sensing part, a first pressure change unit, a second pressure change unit, an outlet assembly, and a pneumatic switch 17. Both the first pressure change unit and the second pressure change unit comprise hollow channels in which air pressure changes with airflow. A heating element 4 is disposed in the first pressure change unit. The pneumatic switch is disposed in the airflow sensing part to activate the heating element 4 to work.
In certain embodiments, both the first pressure change unit and the second pressure change unit separately communicate with the airflow sensing part. In certain embodiments, the airflow sensing part communicates with the second pressure change unit rather than the first pressure change unit. An air inlet port is disposed in the first pressure change unit to introduce outside air into electronic cigarette. The air inlet port is independent with respect to the airflow sensing part. The pneumatic switch may be optionally disposed in the air inlet port as long as the air flows into the first pressure change unit. In certain embodiments, the number of the outlet assembly may be 1, and the first pressure change unit and the second pressure change unit separately communicate with the outlet assembly. In certain embodiments, the electronic cigarette comprises two outlet assemblies independent of each other; one of the two outlet assemblies communicates with the first pressure change unit and the other communicates with the second pressure change unit.
The pneumatic switch 17 primarily refers to an airflow sensor. When sensing a change in airflow or air pressure, the airflow sensor activates the heating element 4. The airflow sensing part and the air inlet port comprise hollow channels or air inlets. One end of the airflow sensing part and one end of the air inlet port directly communicates with the outside of the electronic cigarette to introduce airflow into the electronic cigarette. The outlet assembly is a hollow channel or an air outlet. One end of the outlet assembly directly communicates with the outside of the electronic cigarette and is disposed near a mouthpiece so that the airflow is drawn out from the electronic cigarette and inhaled by a user.
When the user smokes the electronic cigarette, the pneumatic switch is turned on due to a ventilation in the first pressure change unit and the second pressure change unit. After smoking is completed, the first pressure change unit is clogged by the leaked e-liquid or condensed e-liquid. At this time, the ventilation in the first pressure change unit drives the pneumatic switch 17 to work, and the heating element 4 is activated to generate heat. The heat melts the e-liquid narrowing the first pressure change unit to unclog the first pressure change unit and to maintain normal atomization and smoking.
The electronic cigarette comprises an atomizer and a battery assembly secured or detachably connected to the atomizer. For example, the battery assembly comprises a housing 14, and the housing 14 comprises a battery 15 and a plurality of electronic components. The atomizer is inserted into one end of the housing 14, and the atomizer is secured or detachably connected to the housing 14 by magnetic attraction or screw threads.
Referring to
The mouthpiece cover 102 is disposed on one side of the first seal 20 away from the first cavity 105. A plurality of female parts is disposed on the other side of the first seal 20 that faces the mouthpiece cover 102. One side of the mouthpiece cover 102 that faces the first seal 20 comprises a plurality of male parts matched with the plurality of corresponding female parts, which results in a stable structure preventing the mouthpiece cover 102 from falling off.
One side of the e-liquid tank 1 that faces the first seal 20 comprises a connecting member 106 having a diameter smaller than that of the e-liquid tank 1. The connecting member 106 comprises a first area, a second area, and a third area. The other side of the first seal 20 that faces the mouthpiece cover 102 comprises a plug protruding into the first area and the third area. The air tube 103 is disposed in the second area.
The first seal 20 and the second seal 5 comprise colloidal materials such as rubber, plastic, and silica gel.
In certain embodiments, the mouthpiece cover 102 is detachably connected or secured to the e-liquid tank 1. In other embodiments, the mouthpiece cover 102 is disposed on one end of the housing 14 and is detachably connected to the housing 14. Such a detachable connection includes, but is not limited to, a snap-fit, an interference fit, and a screw thread.
The first seal 20 and the second seal 5 each comprise a through hole 501. One end of the air tube 103 is inserted into the through hole 501 of the first seal 20 and the other end of the air tube 103 is inserted into the through hole 501 of the second seal 5.
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The battery 15 is disposed in the housing 14 and is further disposed on one side of the second seal 5 away from the first cavity 105. Referring to
The first pressure change unit comprises a first outlet 110 communicating with the outlet assembly and the second pressure change unit comprises a second outlet 120 communicating with the outlet assembly. The cross-sectional area of the first outlet 110 is 3-200 times that of the second outlet 120, preferably 10-100 times, and more preferably 10-50 times. Referring to
A fifth channel 500 is formed between an outer wall of the battery 15 and the inner wall of the housing 14. The fifth channel 500 may be formed by a gap or a strip groove. Both the first channel 901 and the fourth channel 400 separately communicate with the fifth channel 500. The fifth channel 500 is disposed opposite to the first channel 901. Specifically, the first channel 901 and the fifth channel 500 are disposed in one straight line to reduce air resistance, so that the air flows in an upward direction along the straight line. When the first pressure change unit is blocked, the first channel is disposed opposite the fifth channel 500 to ensure that the air quickly passes through the second pressure change unit, which avoids feeling blocked in the first puff.
The housing 14 comprises a bottom end and an air inlet 1901 disposed on the bottom end. A sixth channel 600 is formed between the air inlet 1901 and the fifth channel 500. The pneumatic switch 17 is disposed in the fifth channel 500 or the sixth channel 600. The fifth channel 500, the sixth channel 600, and the air inlet 1901 are connected one by one to form the airflow sensing part. The sixth channel 600 is formed by a gap or a hole. The pneumatic switch 17 is fixed by a fixing member 16 comprising a hole 1601, The pneumatic switch 17 is secured in the hole 1601. The hole 1601 is a part of the sixth channel 600. The fixing member 16 comprises colloidal materials such as rubber, plastic, and silica gel.
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It will be obvious to those skilled in the art that changes and modifications may be made, and therefore, the aim in the appended claims is to cover all such changes and modifications.
Claims
1. An electronic cigarette, comprising: wherein:
- an airflow sensing part;
- a first pressure change unit;
- a second pressure change unit;
- an outlet assembly;
- a pneumatic switch; and
- a heating element;
- the heating element is disposed in the first pressure change unit;
- the pneumatic switch is disposed in the airflow sensing part to activate the heating element to work;
- the airflow sensing part communicates with the second pressure change unit; and
- the first pressure change unit and the second pressure change unit separately communicate with the outlet assembly.
2. The electronic cigarette of claim 1, wherein the airflow sensing part further communicates with the first pressure change unit.
3. The electronic cigarette of claim 1, wherein the electronic cigarette comprises one outlet assembly, and the first pressure change unit and the second pressure change unit separately communicate with the one outlet assembly; or the electronic cigarette comprises two outlet assemblies independent of each other, and the two outlet assemblies communicate with the first pressure change unit and the second pressure change unit, respectively.
4. The electronic cigarette of claim 1, wherein both the first pressure change unit and the second pressure change unit comprise hollow channels; the first pressure change unit comprises a first outlet communicating with the outlet assembly and the second pressure change unit comprises a second outlet communicating with the outlet assembly; and a cross-sectional area of the first outlet is 3-200 times that of the second outlet.
5. The electronic cigarette of claim 2, wherein the electronic cigarette further comprises a housing and an atomizer; the atomizer comprises an e-liquid tank dispose in the housing; a first channel is formed between an inner wall of the housing and an outer wall of the e-liquid tank.
6. The electronic cigarette of claim 5, wherein the e-liquid tank is hollow; and two ends of the e-liquid tank are provided with a first seal and a second seal, respectively.
7. The electronic cigarette of claim 6, wherein the e-liquid tank comprises a first cavity for storing e-liquid; a mouthpiece cover is disposed on one side of the first seal away from the first cavity; a second channel is formed between the mouthpiece cover and the first seal; the second channel communicates with the first channel, thereby forming the second pressure change unit.
8. The electronic cigarette of claim 7, wherein
- an air tube is inserted in the e-liquid tank; the first cavity is formed by an outer wall of the air tube, an inner wall of the e-liquid tank, the first seal, and the second seal; and the heating element is disposed in the air tube; and
- the first seal and the second seal each comprise a through hole; one end of the air tube is inserted into the through hole of the first seal and the other end of the air tube is inserted into the through hole of the second seal; and a third channel is formed by the through hole of the first seal, the through hole of the second seal, and an inner passage of the air tube.
9. The electronic cigarette of claim 8, wherein the mouthpiece cover is disposed on one end of the housing and comprises an inhaling port disposed opposite to the third channel; and the outlet assembly comprises the inhaling port communicating with the second channel and the third channel.
10. The electronic cigarette of claim 7, wherein a battery is disposed one side of the second seal away from the first cavity; a fourth channel is formed between the battery and the second seal; the third channel communicates with the fourth channel to form the first pressure change unit.
11. The electronic cigarette of claim 10, wherein the battery is disposed in the housing; a fifth channel is formed between an outer wall of the battery and the inner wall of the housing; both the first channel and the fourth channel communicate with the fifth channel; the fifth channel is disposed opposite to the first channel.
12. The electronic cigarette of claim 11, wherein the housing comprises a bottom end and an air inlet disposed on the bottom end; a sixth channel is formed between the air inlet and the fifth channel; the pneumatic switch is disposed in the fifth channel or the sixth channel; the fifth channel, the sixth channel, and the air inlet are connected one by one to form the airflow sensing part.
Type: Application
Filed: Sep 17, 2021
Publication Date: Oct 20, 2022
Inventor: Tuanfang LIU (Shenzhen)
Application Number: 17/478,868