Patent Publication Number: US-11044947-B2

Title: Vaporizer and low-temperature baked smoking set

Description:
TECHNICAL FIELD 
     The present disclosure relates to the field of smoking sets, and particularly, to a vaporizer and a low-temperature baked smoking set having same. 
     BACKGROUND ART 
     With the increasing amount of smoking people in our country, the tobacco cigarettes are applied all over the world. It is difficult to avoid the second hand smoking. The traditional cigarettes need to be lit by open flame to generate smoking smog. The tobacco cigarettes release lots of noxious materials to human people during high-temperature combustion. Most smokers already know the hazard of smoking, but can&#39;t control themselves, it is extremely difficult to get out of smoking. 
     Recently, a low-temperature baked smoking set mainly use some solid vaporizable materials such as tobacco shreds or opium paste etc. to be baked at a low-temperature to generate smoking smog for inhaling, which tremendously reduces the noxious materials to produce. The low-temperature baked smoking set generally includes a vaporizer for receiving and heating the tobacco cigarettes to generate smoking smog. 
     In the present disclosure, the inventors found the relative technologies of aforementioned have blow problems: in a process of the vaporizer being disposable heating the tobacco cigarette, the flavor and taste of smoking will be weakened at later stage, which causes different flavors at earlier and later stages to influence user experience. 
     SUMMARY 
     In view of the drawbacks in the prior art, the present disclosure relates to a vaporizer and a low-temperature baked smoking set have the same. 
     In order to solve the above technical problem, the present disclosure provides a low-temperature baked vaporizer according to independent claim  1  whereas various embodiments of the vaporizer and improvements thereto are recited in the dependent claims. The vaporizer includes an electromagnetic induction coil; a sleeve, configured for receiving solid vaporizable materials; the sleeve is made from metallic materials; the electromagnetic induction coil encircles outside the sleeve; the sleeve includes a first sleeve and a second sleeve connected with the first sleeve; a longitudinal axis extending along a same axis direction of the first sleeve and the second sleeve, and a transverse axis that is perpendicular to and shorter that the longitudinal axis; a cross-sectional area of the first sleeve is smaller than that of the second sleeve along the transverse axis, and the second sleeve has a bigger mass than the first sleeve such that increasing rate of temperature of the second sleeve is slower than that of the first sleeve. 
     Preferably, the sleeve is a hollow cylinder, the first sleeve has same inner diameter as the second sleeve. 
     Preferably, the electromagnetic induction coil encircles outside the first sleeve, configured for heating the sleeve. 
     Preferably, a number of turns of the electromagnetic induction coil is in accordance with a length of the first sleeve. 
     Preferably, the first sleeve and the second sleeve are made from same or different kinds of metallic materials. 
     Preferably, the first sleeve and the second sleeve are made from different metallic magnet materials; the first sleeve has a bigger magnetic permeability than the second sleeve. 
     Preferably, an insulating layer encircles outside the sleeve, configured for making less heat of the sleeve delivered to outside. 
     Preferably, the sleeve has a tobacco receptacle for receiving the solid tobacco materials. 
     Preferably, the vaporizer further includes a power supply module, coupled with the electromagnetic induction coil, and configured for supplying power to the electromagnetic induction coil. 
     Preferably, the electromagnetic induction coil includes a first interface and a second interface; the first interface and the second interface are coupled with the power supply module. 
     Preferably, an insulating layer is coated to the electromagnetic induction coil, configured for preventing leakage of electricity of the electromagnetic induction coil. 
     Preferably, the power supply module includes an USB interface, a battery, a control unit, a charging circuit, a discharging circuit, a voltage detecting circuit, two switches, a battery management circuit and a converter; the battery is coupled with the charging circuit and discharging circuit, two switches are respectively disposed between the battery and the charging circuit, and between the battery and the discharging circuit. The charging circuit and discharging circuit are both coupled with the USB interface. The discharging circuit is coupled with the battery management circuit. The battery management circuit is coupled with the converter. The converter is coupled with the electromagnetic induction coil. The voltage detecting circuit is coupled with the USB interface. The control unit is coupled with the two switches and the voltage detecting circuit. 
     To solve the above problem, the present disclosure further provides a low-temperature baked smoking set having a housing and the aforementioned vaporizer; the vaporizer is disposed inside the housing. 
     Additional aspects and advantages of the present disclosure will be: by relying on the vaporizer of the low-temperature baked smoking set, it includes the electromagnetic induction coil and the sleeve for receiving vaporizable materials; the sleeve is made from metallic materials, the electromagnetic induction coil encircles outside the sleeve, the sleeve includes a first sleeve and a second sleeve connected with the first sleeve, the cross-sectional area of the first sleeve is smaller than that of the second sleeve along the transverse axis, and the second sleeve has a bigger mass than the first sleeve such that increasing rate of temperature of the second sleeve is slower than that of the first sleeve, which may realize segment heating of the vaporizer, enable consistent flavor during smoking, improve user experience and reduce the cost. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Many aspects of the present disclosure can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views. 
         FIG. 1  is an aspect view of a low-temperature baked smoking set in accordance with one embodiment of the present disclosure; 
         FIG. 2  is an isometric view of a vaporizer of the low-temperature baked smoking set in  FIG. 1 . 
         FIG. 3  is an isometric view of a sleeve of the low-temperature baked vaporizer in  FIG. 1 . 
         FIG. 4  is an isometric view of an electromagnetic induction coil of the low-temperature baked vaporizer in  FIG. 1 . 
         FIG. 5  is a block diagram of a power supply module of the low-temperature baked vaporizer in  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION 
     The structure and operating principle of the above vaporizer and the low-temperature baked smoking set are illustrated below, mainly shown from  FIG. 1  to  FIG. 5  in further detail using exemplary embodiments. 
     Referring to  FIG. 1 , which is an aspect view of a low-temperature baked smoking set in accordance with one embodiment of the present disclosure; The low-temperature baked smoking set  30  includes a vaporizer  10  and a housing  20 . The vaporizer  10   a  is accommodated inside the housing  20 . 
     Referring to  FIG. 2 , the vaporizer  10  includes a sleeve  11 , an electromagnetic induction coil  12  and a power supply  13 . The sleeve  11  is configured for receiving solid vaporizable materials; the electromagnetic induction coil  12  encircles outside the sleeve  11  for heating the sleeve  11 . The power supply module  13  is coupled with the electromagnetic induction coil  12  to output alternative current to generate an induction current. 
     Referring to  FIG. 3 , the sleeve  11  is a hollow cylinder, the sleeve  11  is made from metallic materials, preferably magnetic materials to make the effect of inductive heating better, such as powdered iron core, FeNI50 alloys, FeSiAl alloys and FeNiMo alloys etc. The sleeve  11  includes a first sleeve  111  and a second sleeve  112  connected with the first sleeve  111 ; the second sleeve  112  has a bigger mass than the first sleeve  111  such that increasing rate of temperature of the second sleeve is slower than that of the first sleeve. For example, a longitudinal axis extending along a same axis direction of the first sleeve  111  and the second sleeve  112 , and a transverse axis that is perpendicular to and shorter that the longitudinal axis; a cross-sectional area of the first sleeve  111  is equal with that of the second sleeve  112  along the transverse axis, and a length of the first sleeve  111  is shorter than that of the second sleeve  112  such that the second sleeve  112  has a bigger mass than the first sleeve  111 . Or, the cross-sectional area of the first sleeve  111  is smaller than that of the second sleeve  112  along the transverse axis, the length of the first sleeve  111  is the same as that of the second sleeve  112  such that the second sleeve  112  has a bigger mass than the first sleeve  111 . Or, the cross-sectional area of the first sleeve  111  is smaller than that of the second sleeve  112  along the transverse axis, the length of the first sleeve  111  is shorter than that of the second sleeve  112  such that the second sleeve  112  has a bigger mass than the first sleeve  111 . Preferably, the cross-sectional area of the first sleeve  111  is smaller than that of the second sleeve  112  along the transverse axis, and inner diameter of the first sleeve  111  is equal with that of the second sleeve  112 , the outer diameter of the first sleeve  111  is less than that of the second sleeve  112 , let the solid vaporizable materials abut against inside of the sleeve  11   
     The sleeve  11  is heated by induction heating of the electromagnetic induction coil  12 , since the cross-sectional area of the first sleeve  111  is smaller than that of the second sleeve  112  along the transverse axis, and the second sleeve  112  has a bigger mass than the first sleeve  111 , according to a heat quantity calculation formula: Q=c*m*ΔT, of which, c is the specific heat capacity, m is the mass, ΔT is the changing temperature and Q is the heat quantity; and a power calculation formula: P=W/t, of which, P is the electric power, W is the electric work, t is the time, presuming the energy conversion efficiency η is Q=W*η, then P*t=c*m*ΔT*η, therefore, when P is a constant, objects with same materials that have same specific heat capacity, if the object has bigger mass m, then the object need more time to rise to a same temperature. Therefore, during heating the sleeve  11 , since the second sleeve  112  has a bigger mass than the first sleeve  111 , the first sleeve  11  needs less time to rise to a preset temperature, but the second sleeve  112  needs more time to rise to the preset temperature, which may realize the segment heating. 
     An insulating layer (not shown) encircles outside the sleeve  11 , configured for making less heat of the sleeve  11  delivered to outside. The insulating layer is made from thermal insulation materials, such as, thermal insulation glue, aerogel, asbestos, aluminum silicate and calcium silicate etc. The insulating layer may further improve thermal efficiency and heat preservation effect, making the heating rate faster. 
     The sleeve  11  has a tobacco receptacle  110  for receiving the solid tobacco materials. For example, the solid tobacco materials is at least one or more selected from a group of tobacco shreds, tobacco sheets, tobacco powders and tobacco rods. 
     In some embodiment, it makes sense that the first sleeve  111  and second sleeve  112  are both made from same metallic magnetic materials or different metallic magnetic materials, such as the first sleeve  111  and the second sleeve  112  are both made from a same kind of metallic magnetic material, or the first sleeve  111  is made from a kind of metallic magnetic material and the second sleeve  112  is made from another kind of metallic magnetic material. When the first sleeve  111  and the second sleeve  112  are made from different metallic magnetic materials, the first sleeve  111  has a larger magnetic permeability than the second sleeve 112 , so when the electromagnetic induction coil  12  heats the sleeve  11 , the first sleeve  111  generates larger amount of heat than the second sleeve  112 , therefore realizing segment heating. 
     In some embodiment, it makes sense that the cross-section of the sleeve  11  is shaped as square, rectangular or irregular quadrilateral etc. just to guarantee that the sleeve  11  is able to receive the solid vaporizable materials and the second sleeve  112  has a bigger mass than the first sleeve  111 . 
     In some embodiment, the sleeve  111  is a hollow body, the cross-sectional area refers to entity part of the body, such as, if the sleeve  11  is a hollow cylinder, the cross-section is a annular, so cross-sectional area is the area of the annular. 
     Referring to  FIG. 4 , the above electromagnetic induction coil  12  encircles outside the sleeve  11  following an unified direction, to exert inductive heating around the sleeve  11 . The electromagnetic induction coil  12  may be made by electric-conductive materials, such as copper wires or aluminum wires etc. with good electric-conduction but cheap price. Preferably, the electromagnetic induction coil  12  encircles outside the first sleeve  111  to heat the first sleeve  111 . A number of turns of the electromagnetic induction coil  12  is in accordance with a length of the first sleeve  111 . When the electromagnetic induction coil  12  is electrified, by relying on the inductive heating, the temperature of the first sleeve  111  is risen soon, meanwhile, since the electromagnetic induction coil  12  encircles outside the first sleeve  111 , the temperature of the second sleeve  112  is risen by heat conductivity from the first sleeve  111 . If the heat of conductivity is constant, the first sleeve  111  has a smaller cross-sectional area and a smaller mass than the second sleeve  112 , but in same material, after the heat conductivity is finished, based on the formula: Q=c*m*ΔT, of which, c is the specific heat capacity, m is the mass, ΔT is the changing temperature and Q is the heat quantity; if Q is the constant, when c is the constant, larger m, then ΔT is more slighter. So at a certain moment, the temperature of the second sleeve  112  is permanently lower than that of the first sleeve  111 , with consequently realizing segment heating. For example, when the first sleeve  111  is heated to 30° C., the temperature of the second sleeve  112  won&#39;t be risen to 30° C. until 30 seconds later; when the first sleeve  111  is continuously heated to 40° C., after the 30 seconds, the temperature of the second sleeve  112  won&#39;t be risen to 40° C. until 10 seconds later. 
     The electromagnetic induction coil  12  includes a first interface  121  and a second interface  122 ; the first interface  121  and the second interface  122  are coupled with the power supply module  13  configured for supplying power to the electromagnetic induction coil  12 , so the electromagnetic induction coil  12  generates the electromagnetic induction. Based on the electromagnetic induction law, when the electromagnetic induction coil  12  is electrified with the alternative current, the electromagnetic induction coil  12  generates alternative magnetic flux inside, the alternative magnetic flux generates induced potential inside the sleeve  11 , meanwhile when magnetic lines of force in the magnetic field passes through the sleeve  11 , the alternative magnetic lines of force forms a loop inside the sleeve  11 , and the cross-sectional area of the sleeve  11  generates the inductive current, that is vortex, for heating the sleeve  11 . 
     In some embodiment, it makes sense that the electromagnetic induction coil  12  is able to extend into the tobacco receptacle  110 , or be embedded inside of the first sleeve  111 , just to guarantee that the first sleeve  111  is inducted by the magnetic field to generate heat. In other embodiments, the number of the electromagnetic induction coils  12  is two, including a first coil and a second coil (not shown). The first coil and the second coil both encircle outside the first sleeve  111 , the first coil and the second coil may have different turns of coil to change the heating rate of the sleeve  11 , which is more flexible to adjust the heating effect. 
     In some embodiment, it makes sense that the number of turns of the electromagnetic induction coils  12  may be more than or less than the length of the first sleeve  111 , the number may be determined by the cross-sectional area of the electromagnetic induction coils  12  and the cross-sectional area of the first sleeve  111 . 
     In some embodiment, it makes sense that an insulating layer is coated to the electromagnetic induction coil  12 , configured for preventing leakage of electricity of the electromagnetic induction coil  12 . The insulating layer is made by insulating materials such as, synthetic resin, epoxy resin, phenolic resin, 4250-plastic and polyimide plastic etc. 
     Referring to  FIG. 5 , the above power supply module  13  is coupled with the first interface  121  and the second interface respectively, that means coupled with the electromagnetic induction coil  12 . The power supply module  13  includes an USB interface  130 , a battery  131 , a control unit  132 , a charging circuit  133 , a discharging circuit  134 , a voltage detecting circuit  135 , two switches  136 , a battery management circuit  137  and a converter  138 ; the battery  131  is coupled with the charging circuit  133  and discharging circuit  134 , two switches  136  are respectively disposed between the battery  131  and the charging circuit  133 , and between the battery  131  and the discharging circuit  134 . The charging circuit  133  and discharging circuit  134  are both coupled with the USB interface  130  to be coupled with the external power supply. The voltage detecting circuit  135  is coupled with the USB interface  130 , for detecting weather the power supply module  13  is coupled with the external power supply. The control unit  132  is coupled with the two switches  136  and the voltage detecting circuit  135 . The discharging circuit  134  is coupled with the battery management circuit  137 . The battery management circuit  137  is coupled with the converter  138  configured for direct current conversed to alternative current. The converter  138  is coupled with the electromagnetic induction coil  12  for supplying power to the electromagnetic induction coil  12 . If the voltage detecting circuit  135  detects a voltage, that means the power supply module  13  is coupled with external power supply, then an electrical signal is sent to the control unit  132 , after receiving the electrical signal, the control unit  132  controls the switch  136  between the battery  131  and the charging circuit  133  from “off” state alternative to “on” state, the external power supply supplies power to the battery  131  by current from the external power supply passing the charging circuit  133 . If the voltage detecting circuit  135  fails to detect a voltage, that means, the power supply module  13  fails to be electrified with the external power supply, the control unit  132  generates another electrical signal, after the control unit  132  receives the electrical signal, the control unit  132  controls another switch  136  between the battery  131  and the discharge circuit  134  from “off” state alternative to “on” state. The current of the battery flows towards the converter  138  via the discharging circuit  134  and the battery management circuit  137 . The converter  138  may convert the direct current into the alternative current, therefore supplying power to the electromagnetic induction coil  12 . 
     In terms of the vaporizer  10  in the present disclosure, the second sleeve  112  has a bigger mass than the first sleeve  111 , a cross-sectional area of the first sleeve  111  is smaller than that of the second sleeve  112  along the transverse axis, that means, that increasing rate of temperature of the second sleeve  112  is slower than that of the first sleeve  111 , therefore, the segment heating of the vaporizer  10  is realized, enabling consistent flavor during smoking, improving user experience and reducing the cost. 
     In the embodiments, the sleeve  11  is a nearly hollow cylinder, for receiving the vaporizer  10 . The housing  20  may be a plastic housing, made of some heat preservation materials such as polycarbonate, polyurethane and polyimide etc. In other embodiments, the housing  20  may be made of metallic, coating plastic film on the housing  20  to achieve the heat preservation effect. 
     The low-temperature baked smoking set  30  in accordance with the embodiments of the present disclosure, includes the vaporizer  10  available of segment heating that makes the flavor consistent during being inhaled, effectively improves the user experience. Compared with the resistance heating in the prior art, it has lower price. 
     Terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Variations may be made to the embodiments and methods without departing from the spirit of the disclosure. Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the scope of the disclosure.