Abstract:
The present invention relates to an electronic smoking device, comprising a cell part ( 1 ), a cigarette body part ( 2 ) and a cigarette holder ( 3 ). The cigarette body part ( 2 ) comprises a shell ( 4 ) and a heating element ( 7 ) arranged within the shell ( 4 ). The heating element ( 7 ) comprises a tobacco container ( 5 ) in the shape of tube, and the cigarette body part ( 2 ) is provided with a through hole ( 17 ) which is connected to the tobacco container ( 5 ). The heating element ( 7 ) also comprises a heating unit ( 6 ); the heating unit ( 6 ) is sleeved on the outside of the tobacco container ( 5 ). The electronic smoking device of the present invention makes it possible to load and remove the tobacco conveniently, thus facilitating the cleaning of the tobacco container.

Description:
CLAIM OF PRIORITY 
     This application claims priority under 35 USC 371 to International Application No. PCT/CN2012/082507, filed on Sep. 29, 2012 which is incorporated by reference in its entirety. 
     FIELD OF THE INVENTION 
     The present invention relates to an electronic smoking device a tobacco vaporizer, more particularly, to a tobacco vaporizer with a cigarette body part of hollow structure hollow atomizer. 
     BACKGROUND OF THE INVENTION 
     At present, in the field of electronic flue-cured tobacco, there are mainly two kinds of products available in the market: one is to provide a heating wire inside a tobacco container, and the other is to heat a tobacco container through combustion of a liquid fuel. However, the tobacco containers in such two kinds of products are both semi-closed cavities which are closed at the bottom and opened at the top. As a result, the volume of the tobacco container is small, in which only some tobacco can be placed. Besides, tobacco rod available in the market can only be loaded by several times after an unraveling, and it is required to dig out the tobacco residue from the top by utilization of a rod-like article like a ear pick after usage, thereby causing extremely inconvenient operation. 
     SUMMARY OF THE INVENTION 
     The objective of the present invention is to provide an electronic cigarette for which it is easy to clean a tobacco container, aiming at the drawbacks that the tobacco container is not easy to be cleaned in a tobacco vaporizer in the prior art 
     A tobacco vaporizer is provided in the present invention, which comprises a cell part, an atomizer and a cigarette holder. The atomizer comprises a shell and a heating element arranged within the shell; the heating element comprises a tobacco container in the shape of tube, and the atomizer is provided with a through hole which is connected to the tobacco container. 
     The heating element of the tobacco vaporizer of the present invention also comprises a heating unit which is sleeved on the outside of the tobacco container. 
     The atomizer of the tobacco vaporizer of the present invention is equipped with a top electrode installed on a back-end of the heating element, and the through hole is arranged on the top electrode. 
     The tobacco vaporizer of the present invention also comprises an isolation region; wherein the cigarette holder is connected to one end of the atomizer, the cell part is permanently installed on one side of the cigarette body part atomizer, and the isolation region is disposed between the atomizer and the cell part. 
     The cigarette holder of the tobacco vaporizer of the present invention is connected to one end of the atomizer, and the cell part is detachably installed on the other end of the atomizer. 
     The tobacco vaporizer of the present invention also comprises a sealing component which is installed on the other end of the atomizer and inserted into the through hole. 
     The cell part of the tobacco vaporizer of the present invention comprises a lower electrode which is permanently installed on its front end and in electric connection with a PCB board. 
     The tobacco vaporizer of the present invention also comprises a sealing component and the lower electrode has planar ends; wherein one end of the sealing component is inserted into the through hole and its other end presses against the lower electrode. 
     The tobacco vaporizer of the present invention also comprises a sealing component and the lower electrode has a cavity; wherein two ends of the sealing component are respectively inserted into the through hole and the cavity. 
     The tobacco vaporizer of the present invention also comprises a sealing component and the lower electrode has a cavity; wherein one end of the sealing component is inserted into the cavity and its other end presses against the end of the top electrode. 
     When implementing the tobacco vaporizer of the present invention, the following beneficial effects can be achieved: the tobacco container in the atomizer of the tobacco vaporizer is a hollow tubular structure, and the back-end of the atomizer is equipped with the through hole so that the tobacco container is connected to the through hole; in this case, the tobacco is easy to be loaded and removed conveniently, thus facilitating the cleaning of the tobacco container. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention will be further described with reference to the accompanying drawings and embodiments in the following. In the figures: 
         FIG. 1  is a structural sectional view for the cigarette holder and the atomizer of the tobacco vaporizer in the present invention; 
         FIG. 2  is an exploded structural sectional view for the cell part and the sealing component of a first implementation in a first embodiment of the tobacco vaporizer in the present invention; 
         FIG. 3  is an overall structural sectional view for a first implementation in a first embodiment of the tobacco vaporizer in the present invention; 
         FIG. 4  is an overall structural sectional view for a second implementation in a first embodiment of the tobacco vaporizer in the present invention; 
         FIG. 5  is an overall structural sectional view for a third implementation in a first embodiment of the tobacco vaporizer in the present invention; 
         FIG. 6  is an overall structural sectional view for a second embodiment of the tobacco vaporizer in the present invention; 
         FIG. 7  is a top view for a second embodiment of the tobacco vaporizer in the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     To make the objective of the present invention be understood more clearly, now the present invention is described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiment described herein is only to explain the present invention instead of limiting the present invention. 
     As shown in  FIGS. 1 to 6 , a tobacco vaporizer of the present invention comprises a cell part  1 , an atomizer  2  and a cigarette holder  3 . The atomizer  2  comprises a shell  4  and a heating element  7  arranged within the shell  4 . The heating element  7  comprises a tobacco container  5  which in the shape of tube and connected to a through hole  17 . 
     The heating element  7  further comprises a heating unit  6  which is sleeved on the outside of the tobacco container  5 . 
     The tobacco is placed within the tobacco container  5 . 
     It is to be understood that the shape of the through hole  17  is not limited specially, i.e. it can be circular, square or other shapes. 
     Preferably, the shape of the through hole  17  in the present invention is circular, and the inner diameter of the through hole  17  is comparable to that of the tobacco container  5 . 
     Further, the positions where the through hole  17  and tobacco container  5  are arranged are not defined specially. It can be arranged coaxially and can also be arranged eccentrically. 
     Preferably, the through hole  17  and the tobacco container  5  are set coaxially in the present invention, so that it is convenient to stretch into a cleaning tool from the connecting structure formed by the through hole  17  and the tobacco container  5  to clean the tobacco container  5 . 
     First Embodiment 
     As shown in  FIG. 3 , when the cigarette holder  3  is connected with one end of the atomizer  2 , the cell part  1  is detachably installed on the other end of the atomizer  2 . 
     The atomizer  2  is further equipped with a top electrode  14  installed on a back-end of the heating element  7 , and the through hole  17  is provided on the top electrode  14 . 
     The cross-section of the tobacco vaporizer is circular. 
     To improve the safety, the outside of the top electrode  14  is sleeved with an insulation sleeve  21 . 
     Specifically, the insulation sleeve  21  can be consisted of rubber, resin, silica gel and the like. 
     It is to be understood that the mode to fix the top electrode  14  in the atomizer  2  is not defined specially. Specifically, the mode to fix the top electrode  14  in the atomizer  2  in the present invention is as follows: an end of the atomizer  2  is equipped with a first copper element  30 , the insulation sleeve  21  is then clamped inside the first copper element  3 , and the top electrode  14  is subsequently clamped inside the insulation sleeve  21  so as to achieve a permanent connection between the top electrode  14  and the atomizer  2 . 
     The insulation sleeve  21  is in a pressed state at this time. 
     As shown in  FIG. 2 , the cell part  1  comprises a lower electrode  15  which is permanently installed on its front end. 
     To improve the safety, the outside of the lower electrode  15  is sleeved with an insulation sleeve  20 . 
     Specifically, the insulation sleeve  20  can be consisted of rubber, resin, silica gel and the like. 
     It is to be understood that the mode to fix the lower electrode  15  in the atomizer  2  is not defined specially. Specifically, the fixing mode in the present invention is as follows: the insulation sleeve  20  is clamped inside the cell part  1 , and the lower electrode  15  is subsequently clamped inside the insulation sleeve  20  so as to fix the lower electrode  15  within the cell part  1 . 
     The insulation sleeve  20  is in a pressed state at this time. 
     The connection mode between the cell part  1  and the atomizer  2  has no specific limitation, which can be achieved by interference fit, pin connection, clamp fit, screw-thread fit and the like. 
     Preferably, the mode of screw-thread fit is employed in the present invention, so that a detachable structure is formed by the cell part  1  and the atomizer  2 . 
     Its specific structure is as follows: the end of the cell part  1  is equipped with an external thread, and the first copper element  30  of the atomizer  2  is equipped with an inner thread simultaneously; in this way, the outer thread is screwed with the inner thread so as to achieve the connection of the atomizer  2  and the cell part  1 . 
     When the cell part  1  and the atomizer  2  are in the state of connection, the top electrode  14  and the lower electrode  15  contact with each other for ensuring the connection between the electrodes. 
     The tobacco vaporizer also comprises a sealing component  10  which is arranged between the cell part  1  and the atomizer  2 . Herein, the atomizer  2  and the cell part  1  are sealed by the sealing component  10 . 
     It is to be understood that the sealing between the atomizer  2  and the cell part  1  can be achieved by the following three ways. However, it is not limited to these ways. 
     Specifically, as shown in  FIG. 2  and  FIG. 3 , the lower electrode  15  has a cavity  16  in a first implementation. 
     When the cell part  1  is connected with the atomizer  2 , two ends of the sealing component  10  are respectively inserted into the through hole  17  and the cavity  16 . 
     Since the sealing component  10  is inserted into the through hole  17  and the cavity  16 , the sealing between the cell part  1  and the atomizer  2  can be achieved. 
     The connection mode of the sealing component  10  and the through hole  17  is interference fit at this time. 
     Further, as shown in  FIG. 4 , the lower electrode  15  is planar in a second implementation. 
     One end of the sealing component  10  is inserted into the through hole  17 , and its other end presses against the lower electrode  15 . Herein, the sealing of the atomizer  2  and the cell part  1  is achieved by such structure. 
     The connection mode of the sealing component  10  and the through hole  17  is interference fit at this time. 
     Further, as shown in  FIG. 5 , the lower electrode  15  has a cavity  16  in a third implementation. 
     One end of the sealing component  10  is inserted into the cavity  16 , and its other end presses against the end of the top electrode  14 . Herein the sealing component can completely block an opening of the through hole  17 , in which case the sealing of the atomizer  2  and the cell part  1  is achieved by such structure. 
     The following beneficial effects can be achieved using the seal structure described above. 
     On one hand, hot air in the atomizer  2  does not flow to the cell part  1  during smoking so as to prevent the cell with sensitivity to heat from damage. On the other hand, such structure can prevent the loss of heating heat in the atomizer  2  during smoking. 
     The cigarette holder  3  is installed on one end of the atomizer  2 . 
     The cigarette holder  3  and the atomizer  2  are detachable with respect to each other. 
     The cigarette holder  3  is consisted of soft material. For example, it can be consisted by rubber, resin, silica gel and the like. 
     It is to be understood that the connection mode of the cigarette holder is not defined specially. Specifically, a front end of the atomizer  2  is permanently installed with a hollow second copper element  13 . The cigarette holder  3  is combined with the atomizer  2  by clamping the cigarette holder  3  into the hollow part of the second copper element  13 . Wherein, the inner diameter of the cigarette holder  3  is slightly larger than that of the second copper element  13 . 
     In this way, the cigarette holder  3  and the atomizer  2  as well as the cell part  1  and the atomizer  2  are structures that can be installed detachably, so that when loading the tobacco, the cell part  1  and the atomizer  2  can be unscrewed directly to load the tobacco and tobacco rod into the connecting structure formed by the through hole  17  and the tobacco container  5 . 
     In the process of cleaning the tobacco and the tobacco rod, the cigarette holder  3  and the atomizer  2  are separated while the atomizer  2  and the cell part  1  are unscrewed. Subsequently, a rod-like article which has a size comparable to that of a channel is stretched into the tobacco container  5  to clean the tobacco residue in the tobacco container  5 . In this way, it is ensured that no matter the tobacco rod or the hand-cut tobacco can be cleaned out quickly from the tobacco container  5 . 
     When the cigarette holder  3  and the atomizer  2  are not detachable, the cigarette holder  3  can be equipped with a through hole for loading or pushing out the tobacco rod and tobacco. When cleaning the tobacco or the tobacco rod, it is only needed to disassemble the cell part  1  and then draw out or remove the tobacco or the tobacco rod by the through hole of the cigarette holder  3 , the tobacco container  5  and the through hole  17 . 
     Second Embodiment 
     As shown in  FIGS. 6-7 , the tobacco vaporizer also comprises an isolation region  8 . Herein, the cigarette holder  3  is connected to one end of the atomizer  2 , the cell part  1  is permanently installed on one side of the atomizer  2 , and the isolation region  8  is disposed between the atomizer  2  and the cell part  1 . 
     The present embodiment does not comprise the top electrode or the lower electrode. Instead, a PCB board is directly connected with the heating unit through a welding line provided in the isolation region  8 . 
     The isolation region  8  can be provided with some materials such as heat-protective cotton which are configured to isolate the cell part  1  and the atomizer  2 . 
     The tobacco vaporizer of the present embodiment also comprises a sealing component  10 . The sealing component  10  is installed on the other end of the atomizer  2  and further inserted into the through hole  17 . 
     In this embodiment, since the cell part  1  is permanently installed on one side of the atomizer  2  and is isolated by the isolation region  8 , the heat generated during smoking does not cause damage to the cell with sensitivity to heat. 
     The connection mode of the cigarette holder  3  and the atomizer  2  in this embodiment is the same as that in the embodiment. 
     When loading the tobacco, the sealing component  10  is removed directly from the atomizer  2 . After that, the tobacco and tobacco rod are loaded into the connecting structure formed between the through hole  17  and the tobacco container  5 . 
     In the process of cleaning the tobacco and the tobacco rod, the cigarette holder  3  and the atomizer  2  are separated and the sealing component  10  is taken out when the cigarette holder  3  and the atomizer are detachable structures, a rod-like article which has a size comparable to that of a channel is stretched into the tobacco container  5  to clean the tobacco residue. In this way, it is ensured that no matter the tobacco rod or the hand-cut tobacco can be cleaned out quickly from the tobacco container  5 . 
     When the cigarette holder  3  and the atomizer  2  are not detachable, the cigarette holder  3  can be equipped with a through hole for loading or pushing out the tobacco rod and the tobacco. When cleaning the tobacco or the tobacco rod, it is only needed to disassemble the sealing component  10  from the atomizer  2  and then draw out or remove the tobacco or the tobacco rod by the through hole of the cigarette holder  3 , the tobacco container  5  and the through hole  17 . 
     While the embodiments of the present invention are described with reference to the accompanying drawings above, the present invention is not limited to the above-mentioned specific implementations. In fact, the above-mentioned specific implementations are intended to be exemplary instead of being limited. In the inspiration of the present invention, those ordinary skills in the art can also make many modifications without breaking away from the subject of the present invention and the protection scope of the claims. All these modifications belong to the protection of the present invention.