Patent Publication Number: US-9839239-B2

Title: Electronic cigarette and electronic cigarette atomizing device

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to electronic technology fields, particularly with regard to an electronic cigarette and an electronic cigarette atomizing device. 
     2. the Related Arts 
     The air passage of the existing electronic cigarette atomizing device is usually only one. The heated tobacco liquid evaporates to form smoke, which will condense into a liquid in the air passage after cooling. Users tend to easily inhale condensates and a feeling of discomfort is caused thereby. Secondly, materials of an outer tube of the electronic cigarette atomizing device are mostly metal material, and tend to conduct heat to burn or scald users&#39; mouths when smoking. In addition, the tobacco liquid in the atomizing device directly contacts with a heating device. When a use angle varies, such design will result in disobedience of the guided tobacco liquid and cause some burnt smell problems. 
     SUMMARY OF THE INVENTION 
     The main objective of the present invention is to provide an electronic cigarette and an electronic cigarette atomizing device. The present invention is able to fully meet needs of users. Meanwhile the present invention is able to avoid burnt smell problems generated due to disobedience of guided tobacco liquid and in the meantime to increase better experience of users of the electronic cigarette. 
     To achieve the objective of the present invention mentioned above, the present invention adopts technology solutions as follows. An electronic cigarette atomizing device comprises an atomizing component installed within an outer tube of the atomizing device and used for heating and atomizing tobacco liquid, and a liquid cup used for accommodating tobacco liquid. The atomizing component comprises an atomizing holder and a heating component fixed inside the atomizing holder. A filter component is installed and used for filtering tobacco liquid to enter the atomizing holder, and is disposed between the liquid cup and the atomizing holder. The other end of the atomizing holder is connected in turn to an engaging insert and a thread thimble. The filter component comprises a filter net with micropores and a filter cotton, and the filter cotton is attached to a bottom of the filter net. Two sets of air passages are formed and disposed between the liquid cup and the outer tube, and the air passages are communicated with the atomizing component. 
     Further, a concave first groove is disposed and installed at each of both sides of the liquid cup, and at least one of the air passages is formed by the first groove and an inner wall of the outer tube. 
     Further, the filter net is an annular filter net. A projecting annular wall flange is formed at side edges of each of upper and lower ends of the filter net, and a second groove matching a size of the first groove is installed and disposed on the wall flanges. 
     Further, a metal sleeve is installed and disposed between the atomizing holder and the outer tube. A lower end of the metal sleeve completely surrounds the atomizing holder, and an upper end of the metal sleeve surrounds a lower end portion of the liquid cup. 
     Further, a through groove is disposed and installed in a middle end portion of the atomizing holder. An assembly hole is installed and disposed at one end portion of the through groove and used for assembling the heating component, and is symmetrically arranged at both sides thereof. The heating component is attached to fit the filter cotton. 
     Further, an air via hole is installed and disposed in a middle portion of the metal engaging insert, and air is introduced through the air via hole from an outside to an inside of the atomizing device. An insulating pad is installed between the thread thimble and the engaging insert. 
     Further, the outer tube is a plastic outer tube. 
     Further, a top of the outer tube further comprises a top cover, and the top cover comprises a vent hole disposed therein. The vent hole is communicated with the air passages of the liquid cup. 
     An electronic cigarette is also provided wherein the electronic cigarette atomizing device mentioned above is adopted therein. The electronic cigarette further comprises a battery component connected to the electronic cigarette atomizing device. The battery component comprises batteries, control panels, pneumatic switches and indication lights. 
     Further, a lower portion of the atomizing holder connects to the thread thimble which electrically connects to a positive electrode of the battery component of the electronic cigarette, and a negative electrode of the battery component of the electronic cigarette electrically connects to the metal engaging insert. 
     The beneficial effect of the present invention is that a groove shape air passage is installed and disposed at each of both sides of the liquid cup. Smokes can be led to the outside via the air passage, and phenomenon of condensation can be thereby reduced and users are prevented from sucking condensate into their mouths. The filter component is installed at the bottom of the liquid cup and is used for filtering tobacco liquid to move the filtered tobacco liquid into the atomizing holder, and the filter component can filter tobacco liquid to keep produced smokes from the filtered tobacco liquid being pure and clean. The metal sleeve is installed between the atomizing holder and the outer tube, and the metal sleeve wholly surrounds the atomizing holder and only partially surrounds the liquid cup. Since the outer tube is made of plastic material, the metal sleeve can be used to isolate heat to avoid deformation of the outer tube. Besides the metal sleeve does not extend to cover an upper end of the outer tube so that heat can be effectively prevented from being conducted to users&#39; mouths and causing burns or scald problems. The filter cotton has a liquid storage function to avoid burnt smell problems due to disobedience of the guided tobacco liquid caused by varying of use angles of the electronic cigarette atomizing device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  shows a structural schematic exploded perspective view of an electronic cigarette atomizing device in accordance with the present invention; and 
         FIG. 2  shows a schematic cross sectional view of the assembled electronic cigarette atomizing device of  FIG. 1  in accordance with the present invention; and 
         FIG. 3  shows a structural schematic perspective view of a filter net in accordance with the present invention. 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENT 
     In order to facilitate understanding of the present invention, the following descriptions accompanying attached drawings are presented to further completely describe the present invention. Attached drawings show a preferred embodiment of the present invention. However, the present invention may be implemented by many different forms thereof and is not limited to the preferred embodiments described herein. On the contrary, the purpose of providing these embodiments is for much more thorough and entire understanding of the published disclosure of the present invention. 
     With reference to  FIGS. 1 to 3 , they show structural schematic views of an electronic cigarette atomizing device in accordance with an embodiment of the present invention. 
     An electronic cigarette atomizing device in accordance with the present invention comprises an atomizing component  20  installed within an outer tube  10  for heating and atomizing tobacco liquid and a liquid cup  30  for accommodating tobacco liquid. The outer tube  10  is made of plastic material, and is used to provide a very good heat insulation effect to avoid burn or scald hands or mouths of users when using the electronic cigarette. A top of the outer tube  10  further comprises a top cover  11 , and the top cover  11  comprises a vent hole  12  disposed therein. First grooves  31  to be inwardly concave are respectively disposed at both sides of the liquid cup  30 . The atomizing component  20  comprises an atomizing holder  21  and a heating component  22  fixed inside the atomizing holder  21 . A filter component  23  is installed for filtering tobacco liquid to enter the atomizing holder  21  and is disposed between the liquid cup  30  and the atomizing holder  21 . The other end of the atomizing holder  21  is connected in turn to an engaging insert  40  and a thread thimble  50 . The engaging insert  40 , the atomizing component  20  and the liquid cup  30  can be assembled from bottom to top within the outer tube  10 . The filter component  23  comprises a filter net  232  with micropores  2332  and a filter cotton  233 . The filter cotton  233  is attached to a bottom of the filter net  232 . The filter net  232  is an annular filter net  232  and a projecting annular wall flange  2331  is formed at side edges of each of upper and lower ends of the filter net  232 . The wall flange  2331  is set to be capable of storing a certain amount of tobacco liquid therein, and to separate the micropores  2332  from the filter cotton  233  for a certain distance in order for facilitating the atomizing process of the heating component  22 . A second groove  2333  matching a size of the first groove  31  is installed and disposed on the wall flanges  2331 , and the first groove  31  and the second groove  2333  are assembled to be aligned. An air passage is formed by the above mentioned two grooves  31 ,  2333  together with an inner wall of the outer tube  10  when they are matched. An upper end of the air passage is communicated with the vent hole  12 , and a lower end of the air passage is communicated with the filter cotton  233 . The tobacco liquid from an inside of the liquid cup  30  is filtered through the filter net  232  and then permeates into the filter cotton  233 . The heating component  22  atomizes tobacco liquid inside the filter cotton  233 , and the atomized tobacco liquid is output to the vent hole  12  through the air passage. 
     In addition, a through groove  211  is disposed and installed in a middle end portion of the atomizing holder  21 . An assembly hole  212  is installed and disposed at one end portion of the through groove  211  for assembling the heating component  22  and is symmetrically arranged at two sides thereof. The heating component  22  is inserted into and fixed to the assembly hole  212 . A work area of the heating component  22  is engaged with and fitted to the filter cotton  233 . A metal sleeve  70  is installed and disposed between the atomizing holder  21  and the outer tube  10 . A lower end of the metal sleeve  70  completely surrounds the atomizing holder  21 , and an upper end of the metal sleeve  70  surrounds a lower end portion of the liquid cup  30 . The atomizing holder  21  and the liquid cup  30  can be fixed through the metal sleeve  70 . An air via hole  41  is installed and disposed in a middle portion of the metal engaging insert  40 , and air is introduced through the air via hole  41  from an outside to an inside of the atomizing device after assembly. An insulating pad  60  is installed between the thread thimble  50  and the engaging insert  40  to avoid contacts between the engaging insert  40  and the thread thimble  50  while the contacts may lead to a short circuit situation. 
     An electronic cigarette is also provided to comprise the electronic cigarette atomizing device mentioned above. The electronic cigarette further comprises a battery component connected to the electronic cigarette atomizing device. The battery component comprises batteries, control panels, pneumatic switches and indication lights. A lower portion of the atomizing holder  21  connects to the thread thimble  50 . The thread thimble  50  electrically connects to a positive electrode of the battery component of the electronic cigarette, and a negative electrode of the battery component of the electronic cigarette electrically connects to the metal engaging insert  40 . 
     The beneficial effect of the present invention is that a groove shape air passage  31 ,  2333  is installed and disposed at each of both sides of the liquid cup  30 . Smokes can be led to the outside via the air passage  31 ,  2333 , and phenomenon of condensation can be thereby reduced and users are prevented from sucking condensate into their mouths. The filter component  23  is installed at the bottom of the liquid cup  30  and is used for filtering tobacco liquid to move the filtered tobacco liquid into the atomizing holder  21 , and the filter component  23  can filter tobacco liquid to keep produced smokes from the filtered tobacco liquid being pure and clean. The metal sleeve  70  is installed between the atomizing holder  21  and the outer tube  10 , and the metal sleeve  70  wholly surrounds the atomizing holder  21  and only partially surrounds the liquid cup  30 . Since the outer tube  10  is made of plastic material, the metal sleeve  70  can be used to isolate heat to avoid deformation of the outer tube  10 . Besides, the metal sleeve  70  does not extend to cover an upper end of the outer tube  10  so that heat can be effectively prevented from being conducted to users&#39; mouths and causing burns or scald problems. The filter cotton  233  has a liquid storage function to avoid burnt smell problems due to disobedience of the guided tobacco liquid caused by varying of use angles of the electronic cigarette atomizing device. 
     Descriptions and applications of the present invention are intended to be illustrative, not intended to limit the scope of the present invention to the above described embodiment. Variations and modifications of the embodiment disclosed herein are possible, and for those of ordinary skilled in the field, alternative and equivalent various components of the embodiment are common senses and well known. Where any person skilled in this art should know that the present invention can be achieved in other forms, structures, arrangements, proportions, and with other components, materials, and parts, the changes or improvements are still covered within the inventive spirit of the present invention and the scope as defined in the following claims. Without departing from the spirit and scope of the present invention, people can make other modifications and changes of the embodiment disclosed herein.