Background technology
Traditional cigarette satisfies the demands of consumers by lighting pipe tobacco generation flue gas.Yet pipe tobacco ignition temperature is generally 900 ℃ of left and right, in combustion process, can produce the flue gas that contains in a large number bio-toxicity and harmful chemical component (as polycyclic aromatic hydrocarbon constituents), except harm humans health, also can cause environmental pollution.Research shows, nicotine and most tobacco flavor composition (are usually less than 500 ℃) and just can transfer in flue gas at lower temperature, therefore can not produce cigarette because of harmful substance and side-stream smoke that high-temp combustion produces, can significantly reduce cigarette to the harm of health and the pollution to environment.Nearest decades, world Ge great tobacco company is all at Development of New Generation tobacco product or substitute of tobacco, and hope can reduce the harm that tobacco brings to greatest extent meeting on the basis of consumer demand.Low temperature cigarette is by heating (being usually less than 500 ℃) but not burning tobacco, and the fragrance matter toasting in tobacco satisfies the demands of consumers, and is one of important development direction of following tobacco business.
In three kinds of conventional mode of heatings, electric-heating technology is relatively ripe, uses very extensive at present.But general electrical heating conventionally adopts in cigarette the mode of zone of heating is around set; heat from outside to inside tobacco; therefore often there will be the carbonization of outer pipe tobacco and internal layer pipe tobacco also not pipe tobacco such as heating grade heat uneven situation; waste resource; reduced the utilization rate of cigarette; and smoker often feels that flue gas is charred taste, affect smoking and experience.
In addition,, in order to give smog various peculiar flavours, usually need to add various spices in tobacco product.Any material that can send fragrance of spices general reference, the spices using in tobacco industry is generally the natural plant extracts that can send fragrance.These spices discharge fragrance ingredient at normal temperature or while being heated, and are mixed in smog with flavouring.But in practice, find, spices is heated and discharges the optimum temperature range of fragrance ingredient, is heated and discharges the optimum temperature range of smog with tobacco product, often also inconsistent.Conventionally, the former is more much lower than the latter, and for example, the former is generally within the scope of 100-200 ℃, and the latter is generally within the scope of 150-300 ℃, and this makes single heating device be difficult to take into account the optimum working temperature of the two.When using electrical heating cigarette heating tobacco product, in order in the time in short one or two second of each suction of smoker, tobacco product to be heated to make its temperature of being fuming of being fully fuming from environment temperature, conventionally need heater to there is larger heating power.This brings problem.The one, higher to the demanded power output of power supply.The 2nd,, with high heating power, tobacco product is being heated to be fuming in temperature course, spices is " overheated " usually, causes its fragrance " to send out punching ", and fragrance is soft not soft.
Summary of the invention
The present invention solves the deficiency that above-mentioned background technology exists.
The present invention proposes a kind of electric heating type cigarette with a plurality of destructive distillation chamber, it is characterized in that its bringing-up section 3 comprises truncated cone cylinder heater 33 and this truncated cone cylinder heater 33 is separated into heating plate 31 in several of a plurality of destructive distillation chamber; The shape of wherein said truncated cone cylinder heater 33 is to have side opening on truncated cone-shaped and its sidewall.Truncated cone cylinder, as its name suggests, a taper cone barrel has been clipped the remaining truncated cone-shaped cylinder of its head portion exactly.In wherein said destructive distillation chamber for holding tobacco product, described tobacco product is pipe tobacco, tobacco leaf, reconstituted tobacco, expanded cut stem and composite form thereof, or adds pipe tobacco, tobacco leaf, reconstituted tobacco, expanded cut stem and the composite form thereof of the additives such as tobacco extract and Alevaire and essence and flavoring agent.But in preferred embodiments, the tobacco product in this destructive distillation chamber is not containing essence or spices.Wherein in each, heating plate 31 is provided with at least one venthole 32, for heating the circulation of the smog of tobacco product generation.The diameter of described venthole is 0.3-2mm.The number of described interior heating plate 31 can be determined as the case may be, is generally 4-7.
The electric heating type cigarette with a plurality of destructive distillation chamber of the present invention also comprises mixing section 4 and the cigarette holder 5 with described bringing-up section 3 airflow connections, and the cell section 1 of powering to described bringing-up section 3; Between cell section 1 and bringing-up section 3, be provided with changeover portion 2.
In a kind of preferred embodiment, described electric heating type cigarette, from that one end away from cigarette holder, comprises socket is connected successively cell section 1, changeover portion 2, bringing-up section 3, mixing section 4 and cigarette holder 5.Described bringing-up section 3 forms a plurality of destructive distillation chamber jointly by truncated cone cylinder heater 33 and interior heating plate 31 axial perpendicular to cigarette and that keep at a certain distance away; A plurality of ventholes 32 that are connected with carbonizing gas outlet passageway are set on described interior heating plate; Described mixing section is connected with carbonizing gas outlet passageway.Described cell section is that truncated cone cylinder heater and interior heating plate are powered by circuit, and tobacco product is heated.By control circuit, heating-up temperature is remained on below 500 ℃, realize quick low-temperature heat.
In preferred embodiments, wherein said truncated cone cylinder heater 33 arranged outside cylindrical shape thermal insulation layers 36, between described truncated cone cylinder heater 33 outsides and described cylindrical shape thermal insulation layer 36 inner sides, define chamber, limit 35, in this chamber, limit 35, be filled with fragrance and produce material, it is the mixture of spices itself or spices and carrier that described fragrance produces material, this chamber, limit and described mixing section 4 airflow connections.The effect one of described thermal insulation layer 36 is heat insulation to reduce the temperature of shell, prevents from that smoker from pointing to be burned, and the 2nd, between its inner side and described truncated cone cylinder heater 33 outsides, define chamber, above-mentioned limit 35.Wherein any material that can give out fragrance ingredient of spices general reference, can adopt any spices common in tobacco industry.Wherein carrier can be porous carrier, for load spices; Carrier also can form compound with any suitable form with spices.In the present invention, the mixture of spices or spices and carrier is placed in the chamber, limit of unique design, realized the separated of spices and tobacco product, can power and the operating temperature of heater be set according to the two optimum working temperature separately, avoid the inconsistent defect that causes the overheated generation fragrance of spices " overshoot " of the two operating temperature.
Described interior heating plate is fixed on truncated cone cylinder heater, and is connected with truncated cone cylinder heater, tobacco product is heated simultaneously.
The thickness of described interior heating plate is 0.5-1.5mm.
Between described truncated cone cylinder heater 33 and mixing section 4, be provided with dry distiller dividing plate 37, on this dry distiller dividing plate 37, be provided with at least one outlet passageway 38.
Described truncated cone cylinder heater 33 is configured to the whole form opening and closing, to change the tobacco product in each destructive distillation chamber.For example, described truncated cone cylinder heater 33 is by along being axially divided into two semi-cylindrical shaped parts, and two semi-cylindrical shaped parts can be opened freely or close, and for example the two connects by draw-in groove or connects by rotating shaft, etc.
Side opening on described truncated cone cylinder heater 33 sidewalls makes under smoker's swabbing action, part smog can enter chamber, limit 35, carried by thermogenetic fragrance ingredient spices in chamber, limit and enter mixing section 4, and mix with mainstream smoke (advance along each destructive distillation chamber and pass the outlet passageway on dry distiller dividing plate and enter the smog of mixing section 4) in mixing section 4, finally through cigarette holder 5, enter in smoker's mouth.By regulating number, packed density and the tobacco product packed density each destructive distillation chamber in of spices in chamber, limit of side opening, can also regulate draw resistance.The adjusting that exists for draw resistance in chamber, limit provides abundanter regulative mode.In preferred embodiments, from away from mouth end, limit and on the sidewall of described truncated cone cylinder heater 33 in each destructive distillation chamber, there is gradually few side opening of number, be surprised to find that this design can make smoker realize and relatively have more conforming draw resistance between each suction.
In preferred embodiments, circuit design in the electric heating type cigarette with a plurality of destructive distillation chamber of the present invention is configured such that described truncated cone cylinder heater 33 is continuously energized heating, and make described in several heating plates 31 from the heating one by one that starts to switch on successively of the interior heating plate away from cigarette holder.The heating temp of wherein said truncated cone cylinder heater is controlled in spices and starts to discharge within the scope of the optimum working temperature of fragrance ingredient, but lower than the temperature of being fuming of tobacco product, and the heating temp of described interior heating plate is controlled in being fuming more than temperature of tobacco product.Thus, truncated cone cylinder heater mainly plays the effect that heating spices discharges fragrance ingredient and the tobacco product in each destructive distillation chamber carried out to preheating, and interior heating plate plays the effect that heating is fuming.Conventionally, the temperature that spices starts to discharge fragrance ingredient depends on the type of used spices, and the concrete numerical value of the temperature of being fuming of tobacco product will depend on the type of used tobacco product.These can easily be determined as the case may be by the technical staff of tobacco business.
The invention has the beneficial effects as follows:
Smoking set in the present invention is heated to discharge fragrance ingredient and the tobacco product in destructive distillation chamber is carried out to preheating by spices in truncated cone cylinder heater opposite side chamber, adopting a plurality of interior heating plates to heat is successively fuming tobacco product, make spices and tobacco product realize heating independently, can under each comfortable its optimum working temperature, work, avoid the inconsistent defect that causes the overheated generation fragrance of spices " overshoot " of the two operating temperature.
The design of a plurality of heating plates, has also avoided traditional electrical hot type cigarette tobacco overheated being burnt of skin causing when zone of heating heats tobacco to be from outside to inside set and the disadvantage that tobacco internal is not also fully heated around in cigarette.
By regulating number, packed density and the tobacco product packed density each destructive distillation chamber in of spices in chamber, limit of truncated cone cylinder heater side opening, provide the mode of abundanter adjusting draw resistance.From away from mouth end, limit and on the sidewall of described truncated cone cylinder heater 33 in each destructive distillation chamber, there is gradually few side opening of number, in the time of can making each suction, draw resistance is relatively consistent.
The specific embodiment
Below in conjunction with Figure of description and specific embodiment, the present invention is described in further detail, be convenient to be well understood to the present invention, but they do not form restriction to the present invention.
The invention discloses a kind of electrical heating low temperature cigarette, as shown in Figure 1, it comprises cell section 1, changeover portion 2, bringing-up section 3, mixing section 4 and the cigarette holder 5 that socket is connected successively.In cell section 1, be provided with battery flat.Changeover portion two ends are screw thread, and the inside comprises pipe tobacco baffle plate and line interface.Bringing-up section 3 forms a plurality of destructive distillation chamber jointly by truncated cone cylinder heater 33 and interior heating plate 31 axial perpendicular to cigarette and that keep at a certain distance away; Described truncated cone cylinder heater arranged outside cylindrical shape thermal insulation layer 36, between described truncated cone cylinder heater 33 outsides and described cylindrical shape thermal insulation layer 36 inner sides, define chamber, limit 35, in this chamber, limit 35, be filled with fragrance and produce material, it is the mixture of spices itself or spices and carrier that described fragrance produces material, this chamber, limit and described mixing section 4 airflow connections.
A plurality of ventholes 32 are set on described interior heating plate; Described mixing section 4 is connected with carbonizing gas outlet passageway 38.
During use, bringing-up section 3 two ends are connected with mixing section 4 with changeover portion 2 respectively.Cell section 1 is truncated cone cylinder heater 33 and 31 power supplies of interior heating plate of bringing-up section 2 by circuit, makes truncated cone cylinder heater 31 and 31 heatings of interior heating plate, jointly tobacco product is heated, and produces the flue gas with tobacco smell.In preferred embodiments, make described truncated cone cylinder heater 33 be continuously energized heating, but in the operating temperature range of heating temp in spices, and be controlled in being fuming below temperature of tobacco product, the effect that discharges fragrance ingredient and the tobacco product in destructive distillation chamber is carried out to preheating and insulation mainly to play heating spices.And make described in several heating plates 31 from start to switch on successively heating one by one and the heating temp of the interior heating plate away from cigarette holder, be controlled in being fuming more than temperature of tobacco product, mainly to play, tobacco product is carried out to the effect that destructive distillation makes it to be fuming.By control circuit, keep heating-up temperature below 500 ℃, realize homogeneous heating.The number of interior heating plate 31 is 4-7, can increase and decrease according to the actual requirements, to reach needed flue gas effect.Thermal insulation layer 36 guarantees that heat does not does not scatter and disappear, and strengthens heating effect, improves heat utilization rate, and prevents that smoker from pointing scald.The smog producing when tobacco product is heated destructive distillation is divided into two parts, mainstream smoke enters mixing section 4 by the venthole 32 on heating plate in each 31 and the outlet passageway 38 on dry distiller dividing plate successively, and a part of smog enters chamber, limit from the side opening of cone cylinder heater sidewall, and carry spices in chamber, limit and be subject to thermogenetic fragrance ingredient to enter mixing section 4, after mixing with mainstream smoke, jointly through cigarette holder 5, arrive in smoker's mouth.
Adopt the design of the present invention shown in Fig. 1 to make electric heating type cigarette model machine, only do not adopt the electrical heating cigarette model machine of a plurality of destructive distillation chamber design to carry out contrast experiment with adopting the design of chamber, limit.The former is by tobacco product and spices is separated in He Bian chamber, destructive distillation chamber, heats respectively, and latter is put into destructive distillation chamber by tobacco product and spices blend and jointly heated.Invite up to a hundred smokers to aspirate contrast experiment.Result has 92% smoker feedback to say that the former smog fragrance is more soft soft, and draw resistance high conformity between each suction.