Patent Publication Number: US-2018035716-A1

Title: Electronic cigarette

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     Pursuant to 35 U.S.C. §119 and the Paris Convention Treaty, this application claims the benefit of Chinese Patent Application No. 201610627692.1 filed Aug. 3, 2016, and to Chinese Patent Application No. 201620832656.4 filed Aug. 3, 2016. The contents of which, including any intervening amendments thereto, are incorporated herein by reference. 
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The invention relates to an electronic cigarette. 
     Description of the Related Art 
     An electronic cigarette (e-cigarette) is a handheld electronic device that uses an atomizer to vaporize a flavored liquid. Conventionally, even when the e-cigarette is not in use, the flavored liquid is in direct contact with the atomizing core of the atomizer, which tends to adversely affect the properties of the atomizing core. 
     SUMMARY OF THE INVENTION 
     In view of the above-described problems, it is one objective of the invention to provide an improved electronic cigarette in which the flavored liquid remains separated from the atomizing core when the e-cigarette is not in use. 
     To achieve the above objective, in accordance with one embodiment of the invention, there is provided an electronic cigarette, comprising an atomizer assembly, the atomizer assembly comprising: an upper cover; a shell comprising two through holes; a base comprising two blind holes; a heating wire comprising a limit cover and a support base; two silicon plugs; an upper sealing ring; a lower sealing ring; and a sealing plug. The shell is disposed between the upper cover and the base; flavored liquid is filled in the shell, and the two silicon plugs are disposed in the two through holes of the shell and seal the two blind holes of the base, respectively; the two silicon plugs each comprise a breakable neck adapted to be manually broken so that the flavored liquid comes into contact with the heating wire; the upper sealing ring is disposed between the upper cover and the shell, and the lower sealing ring is disposed between the shell and the limit cover of the heating wire; the heating wire is vertically disposed on the support base; and the upper cover is welded on the shell; the sealing plug is disposed on the upper cover; the sealing plug is adapted to seal the flavored liquid in the shell. 
     In a class of this embodiment, the heating wire is sheathed in a first piece of cotton; an insulating ring and a connector are mounted on the support base; and the limit cover of the heating wire is disposed on the support base. 
     In a class of this embodiment, the atomizer assembly further comprises a second sealing ring; the second sealing ring is disposed on the base; the base is fixedly connected to the shell. 
     In a class of this embodiment, the electronic cigarette further comprises a battery assembly; the atomizer assembly is disposed at one side in the battery assembly, and the atomizer assembly is fastened in the battery assembly. 
     In a class of this embodiment, the electronic cigarette further comprises a battery assembly comprising a plurality of magnets, a housing, and a main carrier; the magnets are embedded in slots on the shell and on the main carrier. 
     In a class of this embodiment, a first spring is disposed on a first fixing base; an atomizer cover is fastened by a first tightening ring; the atomizer cover is disposed on a main carrier and is fastened by a second tightening ring; and a mouthpiece is disposed on the main carrier. 
     In a class of this embodiment, a first spring is disposed on a first fixing base; an atomizer cover is fastened by a first tightening ring; the atomizer cover is disposed on the main carrier and is fastened by a second tightening ring; and a mouthpiece is disposed on the main carrier. 
     In a class of this embodiment, a positive lead on a PCB board is soldered to an anode on a battery cell, and a negative lead on the PCB board is soldered to a cathode on the battery cell; a first piece of ethylene-vinyl acetate copolymer (EVA) cotton is attached to a battery cell; and a second piece of EVA cotton and a third piece of EVA cotton are attached to the anode and the cathode on two sides of the battery cell, respectively. 
     In a class of this embodiment, the PCB board is fixed on the main carrier via a first screw; the negative lead is soldered on a second fixing base, and the positive lead is soldered on a positive electrode; the second fixing base is integrated with the positive electrode, a second spring, and an insulating sheet, and is fixed on the main carrier via a second screw; the positive lead and the negative lead are soldered on two ends of the PCB board, respectively; a fourth piece of EVA cotton is attached to a first button and a second button; the first button and the second button are mounted on a panel; the panel is embedded and fixed in the main carrier via third screws on two sides of the panel. 
     Advantage of the electronic cigarette according to embodiments of the invention is that the flavored liquid in the electronic cigarette is sealed from the atomizing core, which is favorable to the protection of the atomizing core. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention is described hereinbelow with reference to the accompanying drawings, in which: 
         FIG. 1  is an exploded view of an electronic cigarette in accordance with one embodiment of the invention; 
         FIG. 2A  is an exploded view of an atomizer assembly of an electronic cigarette in accordance with one embodiment of the invention; 
         FIG. 2B  is an exploded view of a battery assembly of an electronic cigarette in accordance with one embodiment of the invention; 
         FIG. 3  is a cross-sectional view of an electronic cigarette in accordance with one embodiment of the invention; and 
         FIG. 4  is a schematic diagram of an electronic cigarette in accordance with one embodiment of the invention. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     For further illustrating the invention, experiments detailing an electronic cigarette are described below. It should be noted that the following examples are intended to describe and not to limit the invention. 
     As shown in  FIGS. 1-4 , an electronic cigarette comprises an atomizer assembly and a battery assembly. The atomizer assembly is disposed at the right side in the battery assembly, and the atomizer assembly is fastened in the battery assembly. The atomizer assembly comprises two silicon plugs  28 . The silicon plugs are inserted through two holes on the shell  27  to the base  25 . The two silicon plugs  28  are adapted to seal the flavored liquid in the shell, and seal the flavored liquid from an atomizing core before use. When in use, one end of a traction bar of the silicon plugs  28  which is exposed outside of the base  25  is pulled, and the flavored liquid is allowed to pass through the holes on the shell  27  to the atomizing core, meanwhile, the silicon plugs seals up holes on the base  25 , in case the flavored liquid leaks out. The traction bar is broken afterwards, and the silicon plugs remain to seal up the holes on the base  25 , and prevent the flavored liquid leakage. When the flavored liquid is added to the shell, the sealing plug  31  is adapted to seals the flavored liquid in the shell. The sealing plug can be demounted only by using tools, or the sealing plug can be used once. And the atomizing core is effectively protected. Two first sealing rings  29  are disposed in the shell  27 , and an upper cover  30  is welded on the shell  27  using ultrasonic wave. The sealing plug  31  is disposed on the upper cover  30 . The sealing plug  31  can be demounted only by using tools. A heating wire  36  is vertically disposed on a support base  35  of the heating wire. The heating wire is sheathed in a first piece of cotton  37 . An insulating ring  24  is mounted on the support base  35 , and a connector  23  is mounted on the support base. A limit cover  34  of the heating wire and one of the first sealing rings  29  are disposed on the support base  35 . The atomizer assembly further comprises a second sealing ring  26 . The second sealing ring is disposed on the base  25 . The base  25  is fixedly connected to the shell  27 . The above parts are integrated to an atomizer of the electronic cigarette. 
     Preferably, the electronic cigarette comprises a battery assembly. The battery assembly comprises a plurality of magnets  9 . The magnets are embedded in slots on the main carrier  10  and on a housing  32 , so that the housing and the main carrier are combined under the effect of magnetic attraction. A first spring  16  is disposed on a first fixing base  15 . An atomizer cover  14  is fastened by a first tightening ring  13 . The atomizer cover is disposed on the main carrier  10  and is fastened by a second tightening ring  17 . A mouthpiece  18  is disposed on the main carrier. The spring  16  is elastic, thus facilitating the assembly and disassembly of atomizer assembly. A positive lead on a PCB board  5  is soldered to an anode on a battery cell  6 , and a negative lead on the PCB board is soldered to a cathode on the battery cell. A first piece of EVA cotton  8  is attached to the battery cell  6 . Two second pieces of EVA cotton  7  are attached to the anode and the cathode on two sides of the battery cell  6 , respectively, so as to avoid short circuit of the electronic cigarette. The PCB board  5  is fixed on the main carrier via a first screw  4 . The negative lead is soldered on a second fixing base  22 , and the positive lead is soldered on a positive electrode  20 . The second fixing base is integrated with the positive electrode, a second spring  19 , and an insulating sheet  21 , and is fixed on the main carrier  10  via a second screw  11 . The positive lead and the negative lead are soldered on two ends of the PCB board  5 , respectively. A fourth piece of EVA cotton  33  is attached to a first button  2  and a second button  3 . The first button and the second button are mounted on a panel  1 . The panel  1  is embedded and fixed in the main carrier  10  via third screws  12  on two sides of the panel, so that the connection between the panel  1  and the main carrier is reliable. The first button and the second button are convenient to press. 
     Advantage of the electronic cigarette according to embodiments of the invention is that the flavored liquid in the electronic cigarette is sealed from the atomizing core, and the atomizing core is protected. 
     While particular embodiments of the invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the invention in its broader aspects, and therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true spirit and scope of the invention.