CN109938402A - Aerosol generating device - Google Patents

Abstract

The present invention provides a kind of aerosol generating device, comprising: matrix occurs for the aerosol for generating inhalable aerosol, and the filter tip that matrix is connect occurs with the aerosol；The filter tip includes the first absorbing unit for filling filter medium and the second absorbing unit with aerosol deposition region, wherein second absorbing unit includes: the cooling hybrid channel of aerosol；It is set to the current equalizing structure of the arrival end of the cooling hybrid channel of the aerosol；The aerosol deposition region is set to the outlet end of the cooling hybrid channel of the aerosol；Inside and an external at least diluent air entrance along the cooling hybrid channel of radial communication aerosol of the cooling hybrid channel of aerosol.Aerosol filter condition can be improved, obtain ideal aerosol deposition effect.

Description

Aerosol generating device

Technical field

The present invention relates to Field of Tobacco, more particularly to the smoking article with filter structure, and in particular to a kind of aerosol hair Generating apparatus.

Background technique

Currently, there is miscellaneous smoking article on the market, generally, common cigarette includes the cigarette for generating compound aerosol Matrix and the filter tip for filtering out part nuisance in compound aerosol occur for the aerosol that silk is constituted.Usual filter tip is general Including two sections, in order to improve filter effect, research staff considers to fill for example in the wherein filtering rod of one section of filter tip in the industry The efficient absorption material of active carbon, although so setting can more filtering noxious objects to a certain extent, improving While filter capacity, can also enhance the absorption resistance of filter tip entirety, and filter capacity always with the size of filtering material Directly proportional, the size of filter tip is arranged too long or does not all meet the market demand slightly excessively.

And additional resistance to suction, which also results in, provides the negative pressure reduction of suction, and then makes to reduce for tobacco oxygen flow, very may be used The burning under burn incompletely or hypoxemia state can be will cause, such case frequently can lead to nuisance such as carbon monoxide, tar Deng yield promoted.

Still further aspect also has industry personnel to provide matched filtering utensil such as cigarette holder, as the extension of smoking article, Secondary filter is carried out to aerosol.The deficiency of the product is, needs additionally to configure, and needs to carry, moreover, repeatedly making With rear, this kind of filtering utensil can be infected with the bigger tarry odour of more common cigarette.Meanwhile the product also further increases suction resistance Power.

Those skilled in the art consider for the filtering adsorption structure of cigarette holder class product to be transplanted in common cigarette, such as China is specially Sharp (publication number CN1747664 A) discloses a kind of transparent extraction filter cigarette, is changed to the filter structures of cigarette Into increasing one section of extraction, and extraction has been placed between two sections of filter rods, be achieved in the nuisances such as tar Filtering and the visualization of nuisance, although however, the more common cigarette with filter tip of the actual filter effect of the product is promoted, Do not attain yet perfect.

It should be noted that above content belongs to the technology category of cognition of inventor, the prior art is not necessarily constituted.

Summary of the invention

For the defect of existing product described in background technique, the present invention provides a kind of aerosol generating device, comprising: produces Matrix occurs for the aerosol of raw inhalable aerosol, and the filter tip that matrix is connect occurs with the aerosol；

The filter tip includes filling the first absorbing unit of filter medium and the second absorption list with aerosol deposition region Member, wherein second absorbing unit includes: the cooling hybrid channel of aerosol；It is set to entering for the cooling hybrid channel of the aerosol The current equalizing structure at mouth end；The aerosol deposition region is set to the outlet end of the cooling hybrid channel of the aerosol；It is cooling along aerosol The inside of the cooling hybrid channel of the radial communication aerosol of hybrid channel and an external at least diluent air entrance.

In preferred embodiment, the cooling hybrid channel of the aerosol is column.

In some particular embodiments, orifice plate and deflector or fuisw rib can be combined together, and be co-located on gas In mist cooling duct.

In preferred embodiment, the length of the cooling hybrid channel of the aerosol is 7mm-14mm.

In preferred embodiment, the current equalizing structure includes the identical duct of several size and shapes, and the duct is equal It is distributed in the plane of the axis of the vertical cooling hybrid channel of the aerosol.

In preferred embodiment, the current equalizing structure is grid or orifice plate.Percent opening ranges preferably from 45%-80%.

The current equalizing structure is 0.4mm-0.8mm along the thickness of aerosol circulating direction.

In preferred embodiment, between the arrival end of the diluent air entrance to the cooling hybrid channel of the aerosol The ratio between the distance between distance and the diluent air entrance to the outlet end of the cooling hybrid channel of the aerosol are 1:2~20.

In preferred embodiment, the diluent air entrance is to extend perpendicularly to the cooling hybrid channel of the aerosol Axial opening.

In preferred embodiment, the diluent air entrance is multiple along the circumferential equal of the cooling hybrid channel of the aerosol The air inlet of cloth.

In preferred embodiment, second absorbing unit includes the shell for defining the cooling hybrid channel of the aerosol, It is at least partially disposed in the core of interior of shell, the core is formed with several aerosol channels, and the aerosol flows through aerosol channel Aerosol deposition region is reached afterwards；The entrance in the aerosol channel is distributed in the end of the outlet end of the cooling hybrid channel of the aerosol Face.

In preferred embodiment, first absorbing unit is at least partially arranged at second absorbing unit downstream, The outlet in the aerosol channel is distributed in second absorbing unit and docks place with the first absorbing unit.

It further include the surrounding layer for wrapping up aerosol and matrix and filter tip occurring in preferred embodiment, the surrounding layer has Positioned at the aerosol deposition region can viewport.

Since cigarette is disposable products, the nuisance that the aerosol deposition region of realization nuisance filtering can remove is for example The content of tar is limited, so need that whole aerosol deposition regions is allowed to play one's part to the full.Entering, the second absorption is single It before member, is first flowed and is cooled down, aerosol can be made evenly into the second absorbing unit, and by cooling, gas can be made Mist is easier to deposit, furthermore it is possible to which diluent air and aerosol is allowed equably to mix, promotes the mouthfeel of suction, has avoided " sucking air Sense ".

It is kept uniformly finally, also helping the aerosol after the second absorbing unit, because unevenly flowing into the second absorption The aerosol of unit is difficult to be flowed while carrying out nuisance deposition, by the first absorbing unit such as traditional filtering mouth In the case where the downstream for being at least partially disposed in the second absorbing unit, is conducive to traditional filtering mouth structure and equably gives full play to work With this is beneficial to the length for shortening filter tip, avoids cigarette being made too long.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 depicts the structural schematic diagram of aerosol generating device in one embodiment of the invention.

Fig. 2 depict in one embodiment of the invention the second absorbing unit in aerosol generating device illustrate after cutting it is interior Portion's structural schematic diagram.

Fig. 3 depicts the broken section structural representation of the second absorbing unit in aerosol generating device in one embodiment of the invention Figure.

Fig. 4 depicts the external structure signal of the second absorbing unit in aerosol generating device in further embodiment of this invention Figure.

Fig. 5 depicts in further embodiment of this invention in aerosol generating device aerosol and diluent air in the second absorbing unit Flow path schematic diagram.

Fig. 6 depicts in yet another embodiment of the invention in aerosol generating device in the second absorbing unit aerosol in outflow filter core Aerosol channel after flow tendency schematic diagram.

Fig. 7 depicts the partial structure diagram of core in aerosol generating device in yet another embodiment of the invention.

Fig. 8 depicts the ring portion schematic shapes of core in aerosol generating device in yet another embodiment of the invention.

Specific embodiment

General idea of the invention is illustrated in order to clearer, is carried out in an illustrative manner in conjunction with Figure of description below It is described in detail.

It needs to illustrate, in the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, this hair Bright to be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by under The limitation of specific embodiment disclosed in face.

In addition, in the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", The orientation of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction " Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, and It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore It is not considered as limiting the invention.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed System.But it indicates and is directly connected to, illustrate to construct connection relationship not by excessive structural between two main bodys in connection ground, only pass through Connection structure is connected to form an entirety.For the ordinary skill in the art, on can understanding as the case may be State the concrete meaning of term in the present invention.

In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.In retouching for this specification In stating, the description of reference term " one embodiment ", " some embodiments ", " example ", " specific example " or " some examples " etc. Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the invention In embodiment or example.In the present specification, schematic expression of the above terms are necessarily directed to identical embodiment Or example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples It can be combined in any suitable manner.

The product deposited in the prior art, which can also be configured, is handled aerosol using the filter structure of different absorption mechanisms, But similar products using there is not thorough place to the greatest extent, that is, are, filter structure is not fully utilized filter structure, hence it is evident that Ground also can be in the deposition of similar filter structure generation tar after the cigarette singly propped up has been aspirated, but tar is unevenly heavy Product, in order to realize aerosol deposition effect ideal enough, certainly will just increase the length of filter structure on each smoke collision wall Degree to extend the sphere of action of aerosol deposition time and aerosol deposition structure, but is arranged such that will lead to filter tip further It lengthens, not only increases whole resistance to suction, influence the mouthfeel of suction, also will increase cigarette volume, reduce portability.

The individual cigarette holder for cooperating traditional cigarette to use is due to not disposable, so after a number of uses, The deposition of tar is generally uniform, and as disposable products, in the prior art, single branch configuration utilizes aerosol deposition principle The product for adsorbing nuisance in aerosol, is the using effect that can not obtain repeatedly used cigarette holder, that is to say, that do not do Method makes full use of adsorption structure perhaps aerosol deposition ineffective perhaps only partial adsorbates structure function or adsorption structure Each section adsorption saturation degree is inconsistent, causes the waste of structure or production capacity.

Part or filter tip occur for the reason of above situation occurs, the flue gas for essentially consisting in the filling of either pipe tobacco Filter rod, all and irregular eutectic, flue gas are also random turbulent condition in flow process, are especially become in flow fields environment Under conditions of change, aerosol can not be evenly into the adsorption structure added in extraction.

In addition, the prior art uses the product of preceding adsorption structure in suction, the feeling of sucking air is still suffered from, Mouthfeel differs greatly compared with conventional cigarette, and reason is that, diluted air does not mix uniformly with flue gas properly.

The mentality of designing and realization of the one aspect of aerosol generating device provided by the invention are disclosed in one embodiment Mode, as shown in Figure 1 to Figure 3, aerosol generating device 100, comprising:

Matrix 110 occurs for the aerosol for generating inhalable aerosol, and the filter tip that matrix 110 is docked occurs with aerosol；

Filter tip includes filling the first absorbing unit 120 of filter medium and the second absorption list with aerosol deposition region Q Member 130, wherein the second absorbing unit includes transparent outer cover 1301, at least partly the aerosol deposition region portion that is located at transparent outer cover Divide on inner sidewall.That is, aerosol deposition P is distributed on the internal partial wall of transparent outer cover.

By controlling aerosol deposition, the nuisance in aerosol such as flue gas is allowed to form sheet in the inner sidewall of transparent outer cover Deposition, can be effectively reduced the content of harmful material in smoke such as tar, also, by aerosol deposition rather than adsorption filtration Mode reduces nuisance content, not will increase draw resistance substantially.

The principle of aerosol deposition mainly allows aerosol regularly to collide aerosol deposition region such as wall construction, then in temperature It is deposited on wall mechanism, or the variation by controlling aerosol flow rates under the action of difference, is allowed while aerosol velocity reduces Aerosol and wall construction come into full contact with, and are increased with the time for promoting aerosol to rest on aerosol deposition region, and allowing has viscosity in aerosol Liquid particles deposit.

It follows that temperature difference is extremely important for the deposition of nuisance in aerosol, in filter tip, transparent outer cover is position In aerosol generating device such as cigarette cigarette it is radially outermost, radiating condition is best, and undoubtedly temperature is also minimum, Aerosol deposition region is limited to the inner sidewall of transparent outer cover, is more advantageous to the deposition of nuisance.

In addition, the nuisance of deposition is allowed to be clearly observed, it is also advantageous, so, it is formed for observer for example The deposition of slabbing is most suitable for the smoker of cigarette, the angle of overview be perpendicular to cigarette axis or with The axis of cigarette is slightly formed certain angle, anyway, if aerosol deposition region is limited at one and cigarette axis When in vertical plane, by external observation to deposition figure be probably a line or a very narrow trace, can not Obtain ideal effect of visualization.And the inner sidewall of transparent outer cover is set, then it will necessarily be formed for observer, in flakes The deposition figure of shape.

In conjunction with attached drawing, the second absorbing unit 130 includes the core 1302 being arranged in inside shell 1301, the formation of core 1302 Aerosol deposition region Q is reached after having aerosol channel 13021, aerosol to flow through aerosol channel 13021.

By having the core in aerosol channel in the setting of the second absorbing unit, it is single that the second absorption is flowed into after generating for aerosol Member, the purpose that core is arranged are to control direction and the trend of aerosol flowing, make position and and the range-controllable of aerosol deposition It is possibly realized, and not flows directly into after shell and transparent outer cover inner sidewall is just deposited on by depositional mode above-mentioned, meanwhile, if It sets built-in core and is also advantageous that assembling in structure, or perhaps be conducive to apply in industrialization volume production, in order to match The demand produced in enormous quantities is closed, is to be desirable to reduce each complex degree of structure for constituting element as far as possible, by assembling side Formula provides aerosol channel inside transparent outer cover, compared with producing aerosol channel on transparent outer cover ontology, it is clear that is simpler Single, the structure of transparent outer cover itself can be made simpler, mould development cost is reduced, equally improve the stability of structure, As long as above scheme can be realized in the cavity for forming accommodating core on transparent outer cover, it is clear that such design can guarantee The production of bright shell has sufficiently high yields.

In conjunction with attached drawing, the gap 13022 between the outer wall of core 1302 and the inner sidewall of transparent outer cover 1301 forms aerosol The extension in channel, aerosol deposition region Q are formed at the inner sidewall of the transparent outer cover at gap 13022.

It allows and forms gap between core and transparent outer cover, gap preferably in homogeneous thickness, aerosol is flowed out from aerosol channel After can rapidly spread and be filled into gap, then formed and deposited in gap location.This is to control deposition position and range just Prompt means, as long as the range that control gap is formed, so that it may the range of aerosol sprawling is controlled, so as to according to different designs It is intended to simply adjust the visualization range of aerosol deposition.

And the implementation of the means, the main processing by core outer wall, core outer wall can be processed into a part with The inner sidewall of transparent outer cover is bonded, and the inner sidewall of another part and transparent outer cover forms gap, can be achieved with aforementioned control in this way It is intended to.Additional processing is carried out without the inner sidewall to transparent outer cover, for structure lesser for size, for structural outer Difficulty of processing will be far away lower than to the difficulty of processing of inside configuration, such setting is similarly advantageous in industrial application 's.Obviously, cigarette etc. is not burnt for portable requirement, common product for aerosol generating device class product such as cigarette, low temperature Design size it is all smaller, avoid the secondary operation retrofit in other words for inside configuration, be all very important.

In conjunction with attached drawing, aerosol channel 13021 has the portion that curves, and aerosol is axially flowed by curving portion forward position core 1302, Aerosol is flowed along the Radial Flow of core 1302 after curving portion or towards close to the direction of transparent outer cover 1301.

By the way that the bending in aerosol channel is arranged, control aerosol changes flow direction when flowing through aerosol channel, finally transparent to flow to The inner sidewall of shell.In conjunction with aerosol deposition principle above-mentioned, when aerosol enters, make aerosol along core for the demand for reducing resistance The axial flowing of body axial direction i.e. entire second absorbing unit, this is axially extending and matrix occurs from aerosol and generates with aerosol The flow tendency for being sucked into the first absorbing unit and the second absorbing unit afterwards is consistent.Then in the position for needing to form deposition It sets, changing flow direction can also generate when flowing through bending part since deflecting causes to hit with the inner sidewall in aerosol channel Some depositions, these deposition rate small amounts are formed in the interior of the aerosol channel inside core because flow velocity does not change substantially Side wall will not have enough temperature differences with aerosol, these a small amount of depositions help to reduce the content of nuisance in aerosol, another Aspect does not expect aerosol deposition excessive in aerosol channel, firstly, this part for the durability requirements of pumped mass yet Deposition is difficult to realize the visualization of deposition, secondly, if generating excessive deposition, it will the flow field of aerosol in aerosol channel is influenced, During being aspirated, the aerosol for starting suction may have certain difference with the aerosol finally aspirated in mouthfeel, Influence the experience of user.

The inner sidewall for making the region of aerosol deposition be mainly distributed on transparent shell is realized in this way: passing through bending Portion changes aerosol flow direction, and aerosol is then allowed to hit perpendicular to the inner sidewall of transparent outer cover, under impact force effect, while by the temperature difference It influences and the flowing velocity of aerosol tends towards stability after flowing out aerosol channel, to the model of external diffusion at shock and at shock It encloses to be formed and tends to formula deposition.Or flowed on the inner sidewall of transparent outer cover by other directions, such as along in transparent outer cover The tangent direction of side wall flows on inner sidewall, flows then along inner sidewall, and under the influence of the temperature difference, while flow velocity reduces, saturating The inner sidewall forming region formula of bright shell deposits.

In conjunction with attached drawing, the flow area that gap 13022 is supplied to aerosol is not less than the circulation in 13021 exit of aerosol channel Section.

In order to allow aerosol deposition, it is expected that aerosol, when flowing to aerosol deposition region, flowing velocity reduces, with more gentle shape State flowing.Control flow area is the mode for being easier to realize.In addition, reducing aerosol flow rates in aerosol deposition region, can prolong Long aerosol is in aerosol deposition region residence time, on the one hand, provides enough sedimentation times, more fully reduces nuisance Content, on the other hand, aerosol can promote the reduction of aerosol temperature in this region stay longer, that is to say, that by the Two absorbing units realize certain refrigerating function, and the cooling of aerosol is also necessary for being promoted and aspirating mouthfeel, if This part cools down, so that it may the cooling structure for reducing aerosol generating device such as cigarette, heating cigarette other parts of not burning Length, be also beneficial to promote product miniaturization.

Preferably, gap be supplied to the flow area of aerosol area be aerosol channel exit flow cross-section areas 2 times or more.The area change in section can be with gradual change or stepped change.

In conjunction with attached drawing, aerosol channel 13021 meet aerosol from aerosol channel 13021 outlet outflow after at least partly with it is saturating Bright 1301 inner sidewall of shell is vertical or approximately perpendicular flow direction collides aerosol deposition region Q.

When aerosol and aerosol deposition region are collided, the inertia force of aerosol flowing can play a role, the liquid of the condensation in aerosol Drop can be collided under the action of inertia force in aerosol deposition region, hit in vertical direction with wall is hit, inertia force can play most Big effect, the collision of this inertia power drive are advantageous aerosol deposition, because of the drop condensed in aerosol generally all band There is certain viscosity, by collision, there is the higher position that may directly stick in and collide.This vertical collision side Formula will also drive the quick loss of aerosol, random but substantially contact to a wide range in homogeneous state with aerosol deposition region on the whole, To be deposited under action of thermal difference.

In conjunction with attached drawing, be formed on the outside of core 1302 by be divided between gap 13022 several subregions it is straight between muscle 13023, Between the outlet in each aerosol channel 13021 is located at adjacent two directly between muscle 13023.

For make aerosol with the implementation of vertical flow direction collision aerosol deposition region, being equipped with advantageously It is to be separated the region for forming gap, is thus spaced each region that aerosol deposition occurs, eliminates in aerosol deposition process In, the aerosol of adjacent aerosol channel outlet outflow is interfered and is influenced.Simultaneously by the loss and deposition of Separation control aerosol The visible level of range, aerosol deposition is improved with the reinforcement of deposition thickness, is controlled the range of loss and deposition, is conducive to Increase the thickness of aerosol deposition under equal conditions.Meanwhile muscle can also act on support core support construction, make core with Transparent outer cover is relatively stable, avoids product when carrying because shaking causes to loosen.

In addition, preferably, on core, in aerosol channel outlet and core close to the exit end of the second absorbing unit Between be formed with limit rib, the top fitting transparent outer cover of limit rib or form gap.Between muscle and limit rib all along core Axially extending arrangement.This limit rib further separates gap, primarily serves the effect flowed, limit rib be formed in it is adjacent between Between muscle, and the distance between muscle is consistent between preferred limit rib and two.Aerosol is in compare disorder after deposition State, by the arrangement of muscle and limit rib, state tends to be equal when aerosol can be allowed to flow out from the outlet of the second absorbing unit It is even, downstream can be entered after aerosol outflow with more uniform state.It is arranged in the first absorbing unit in the second absorbing unit downstream When, this set, which then seems, to be even more important, and the filter medium in the first absorbing unit, which can fill, to be utilized respectively, and aerosol is avoided to enter When the first absorbing unit, circumferential even concentration degree is too low, leads to a certain portions of filter medium adsorption saturation, and reduces filtering and inhale Attached effect.

In embodiment not shown, aerosol channel meet aerosol from aerosol channel outlet outflow after at least partly with it is saturating Bright housing interior side-wall is tangent or approximate tangent flow direction collides aerosol deposition region.

Another allows aerosol deposition in the implementation in the aerosol deposition region for being located at transparent shell inner sidewall, is to allow gas Mist is after flowing through aerosol channel, with tangent or approximate tangent flow direction collides aerosol deposition region with transparent outer cover inner sidewall, this The setting of sample is to flow under inertia force and suction by aerosol along inner sidewall, then cooperates the circle of transparent outer cover inner sidewall Arc shape, aerosol will be acted on by centrifugal force close to inner sidewall in flowing, cooperate the temperature difference and flow velocity regulating measure, aerosol at this time It will be deposited in the inner sidewall of transparent outer cover, this implementation will keep the deposition of aerosol more uniform.

In the embodiment of meaning not shown, it is formed between the arc that gap is divided into several helical channels on the outside of core Muscle, each aerosol channel outlet is between two adjacent arcs between muscle.

Allow aerosol with tangent or approximate tangent flow direction collides aerosol deposition region with transparent outer cover inner sidewall for above-mentioned Implementation, preferred fit system be between the outer wall of core and the inner sidewall of transparent shell formed cooperation aerosol flow direction Helical duct, helical duct extends to the outlet of the second absorbing unit around core, is evenly distributed aerosol deposition, and The guiding of spiral way, allows to flow to amplitude of variation more gentle, wide-angle flow direction variation is reduced, to reduce aerosol flow process In driving force loss, reduce the resistance to suction of entire second absorbing unit.

In addition, aerosol generating device 100 further includes the surrounding layer (not shown) wrapped up aerosol and matrix 110 and filter tip occurs, Surrounding layer have positioned at aerosol deposition region can viewport.

Occur matrix and filter tip to fix aerosol, the way routinely used be occurred with surrounding layer package aerosol matrix with Filter tip, in order to ensure visual effect, selection surrounding layer setting can viewport, can viewport can be the opening that surrounding layer is set, Be also possible to be arranged in the transparent material of the part of surrounding layer, through can viewport be observed that the shell of transparent outer cover, in turn Observe the aerosol deposition formed in aerosol deposition region, can the range of viewport can be completely covered where aerosol deposition region Full scope can also cover the part range where aerosol deposition region, can also be set as needed can viewport shape, Realize the visualization of visible results with standardization.

Another embodiment disclose the other side of aerosol generating device provided by the invention mentality of designing and Implementation, as shown in Fig. 4 to Fig. 5, the structure and previous embodiment of aerosol generating device are almost the same comprising:

Matrix occurs for the aerosol for generating inhalable aerosol, and the filter tip that matrix is connect occurs with aerosol；

Filter tip includes the first absorbing unit for filling filter medium and the second absorbing unit with aerosol deposition region 230, wherein the second absorbing unit 230 includes: the cooling hybrid channel of aerosol limited by part enclosure 2301；It is set to aerosol The current equalizing structure 2303 of the arrival end of cooling hybrid channel；Aerosol deposition region is set to the outlet of the cooling hybrid channel of aerosol End；Inside along the cooling hybrid channel of radial communication aerosol of the cooling hybrid channel of aerosol enters with an external at least diluent air Mouth 2304.

Since cigarette is disposable products, the nuisance that the aerosol deposition region of realization nuisance filtering can remove is for example The content of tar is limited, so need that whole aerosol deposition regions is allowed to play one's part to the full.Entering, the second absorption is single It before member, is first flowed and is cooled down, aerosol can be made evenly into the second absorbing unit, and by cooling, gas can be made Mist is easier to deposit, furthermore it is possible to which diluent air and aerosol is allowed equably to mix, promotes the mouthfeel of suction, has avoided " sucking air Sense ".

It is kept uniformly finally, also helping the aerosol after the second absorbing unit, because unevenly flowing into the second absorption The aerosol of unit is difficult to be flowed while carrying out nuisance deposition, by the first absorbing unit such as traditional filtering mouth In the case where the downstream for being at least partially disposed in the second absorbing unit, is conducive to traditional filtering mouth structure and equably gives full play to work With this is beneficial to the length for shortening filter tip, avoids cigarette being made too long.

In conjunction with attached drawing, the cooling hybrid channel of aerosol is column.

With the variation that each section of section or section having the same axially extending are gentle.Along axial changes of section No more than 5%.Column is preferably cylinder or other shapes with smooth surface inner wall, and section substantially constantization can Air-flow is allowed to tend towards stability in flow process, the setting of passage length can be determined by flow field simulation result, such as can be passed through The simulation of fluent smoothness determines that under normal negative pressure effect, flow field basically reaches stable minimum length；

The experimental data that temperature change then passes through laboratory determines that the development length of the cooling hybrid channel of aerosol is longer, then Temperature reduce it is more, into the filter core as filter medium after more abundant deposition, improve tar reduction oil content, mixing is also more evenly.

In the embodiment of meaning not shown, it is equipped in the cooling hybrid channel of aerosol and flows part, it is empty to be set to dilution for stream part Between gas entrance and the outlet end of the cooling hybrid channel of aerosol.

For the stream effect for further increasing aerosol in aerosol cooling duct, preferably it is achieved in that cooling in aerosol Part is flowed in setting in channel, compared with using flowing naturally by aerosol after a distance for formation raising uniformity coefficient, flows Part will be with more efficient stream effect.The optional setting aerosol cooling duct inner hole plate of constituted mode of part is flowed, orifice plate is opened The equal portion in hole, and opening direction is axial consistent with aerosol cooling duct.Or the constituted mode of stream part can also be to be formed In the deflector or fuisw rib of the inner wall of aerosol cooling duct, the extending direction of deflector or fuisw rib is also cooling logical with aerosol The axial direction in road is consistent, and the flow field of aerosol is arranged with this, is allowed to tend to be uniform.Aerosol can be shortened using stream part to a certain extent The necessary development length of cooling duct.

Above-mentioned constituted mode, which is all made of, is easy installation or easy molding mode composition, to adapt to the demand of industry application. Such as orifice plate is filled in aerosol cooling duct, then limits it along the axially shifting of aerosol cooling duct to be formed in the supporting rib of side wall Dynamic trend, deflector or fuisw rib then can integrally formed mode be formed on the inner wall of aerosol cooling duct.Setting The extending direction of deflector or fuisw rib is axial consistent with aerosol cooling duct, can be real as long as opening straight trough on mold It is existing.In addition, considering for structural strength, by that can also increase with the integrally formed deflector in aerosol cooling duct or fuisw rib The integral strength of structure, in this structure composition, due to the booster action of deflector and fuisw rib, can permit will limit aerosol The shell mechanism of cooling duct makes more frivolous.

In some particular embodiments, orifice plate and deflector or fuisw rib can be combined together, and be co-located on gas In mist cooling duct.

Preferably, stream part, axially closer to diluent air entrance, is diluting sky close along aerosol cooling duct The downstream area of gas entrance will form apparent flow-disturbing due to the entrance of diluent air, and stream part is arranged here, first can Enough promote even flow field, second during stream part stream field arranges, flows the flow field of the partial region of part setting actually It is for turbulence state, aerosol and diluent air form turbulent flow, would be even more beneficial to promote aerosol and diluent air sufficiently, uniformly Ground mixing.

Preferably, the length of the cooling hybrid channel of aerosol is 7mm-14mm.

It has been observed that the cooling hybrid channel of aerosol should have enough length, and ideal length is in order to guarantee to flow effect 7mm should be not less than, and length is excessive, will increase draw resistance, and increases aerosol generating device such as cigarette on the whole Length, so ideal setting length should be not more than 14mm.Preferred length range is 9mm-12mm, it is highly preferred that length is optional 9.5mm、10mm、10.5mm、11mm。

In conjunction with attached drawing, current equalizing structure 2303 includes the identical duct of several size and shapes, and duct is distributed in vertical aerosol The plane of the axis of cooling hybrid channel.

Current equalizing structure is arranged in entrance in aerosol cooling duct, that is, aerosol is allowed to flow into aerosol with relatively uniform state Cooling duct is necessary, and specific implementation measure is just to provide the duct in equal portion, and aerosol flow field is promoted to have uniform and direction ratio More consistent vector, providing cellular structure is one of the conventional means of even flow fieldization processing, but applies and describe in aforementioned schemes Aerosol cooling duct in be advantageous in that, this duct formed can production limit aerosol cooling duct shell While, it is made by integrally formed mode, and can directly be formed by simple buckling mould.

Specifically, current equalizing structure is grid or the orifice plate anticipated as shown.Percent opening ranges preferably from 45%-80%.

Current equalizing structure is 0.4mm-0.8mm along the thickness of aerosol circulating direction.

It is related to the composition of current equalizing structure, grid or AND DEWATERING FOR ORIFICE STRUCTURE, the range of aforementioned percent opening and thickness can be used It is equally the more satisfactory parameter area of inventor's confirmation.Certainly, use size except the range of certain deviation can also be with Certain stream effect is obtained, substantially, aerosol is allowed to be flowed by single channel variation to pass through multiple uniformly distributed channels, so that it may To allow aerosol uniformity coefficient to improve to a certain extent.And in the preferred range, more satisfactory stream effect will be obtained.

In addition, the distance between the arrival end of diluent air entrance 2304 to the cooling hybrid channel of aerosol enters with diluent air It is 1:2~20 that mouth 2304, which cools down the ratio between the distance between outlet end of hybrid channel to aerosol,.

Cool down with aerosol for diluent air to reserve sufficient cooling mixing length and mix, preferably by diluent air Entrance be arranged closer to the cooling hybrid channel of aerosol arrival end, the ratio between setting afore-mentioned distance can be passed through and realize above-mentioned technology meaning Figure.In aforementioned range, the uniform cooling effect of aerosol and diluent air is all more satisfactory, major embodiment be exactly aspirate mouthfeel compared with It is good, the mouthfeel of " sucking air " is not had substantially.And to the second absorbing unit and detection, completing, cigarette is whole After branch suction, or even after every mouthful of suction of completion, aerosol deposition is all in homogeneous state distribution, and the deposition in each aerosol deposition region is also Close to uniformly.

In conjunction with attached drawing, diluent air entrance 2304 is axial the opening for extending perpendicularly to the cooling hybrid channel of aerosol Mouthful.

As a kind of constituted mode of diluent air entrance, the axial direction for directly opening up one and the cooling hybrid channel of aerosol is hung down Straight opening allows diluent air to enter aerosol at the consistent distance and position of arrival end for cooling down hybrid channel with aerosol cooling mixed Channel is closed, the mixing flow field of generation is that comparison is regular, it is easier to be arranged as flow field.And opening is directly formed, is passed through Simple machining mode can be formed, and complex process degree can be reduced.

In the embodiment of meaning not shown, diluent air entrance is multiple along the circumferentially uniformly distributed of the cooling hybrid channel of aerosol Air inlet.

As a kind of constituted mode of diluent air entrance, the air inlet along the circumferential portion in the cooling hybrid channel of aerosol is set Allow diluent air circumferentially evenly into the cooling hybrid channel of aerosol, that is to say, that also to carry out at stream to diluent air Reason, the more conducively uniform mixing of aerosol and diluent air, and will make due to being distributed in circumferential air inlet through each air inlet The diluent air of entrance forms convection current, offsets part along the fluid vectors of the cooling hybrid channel radial direction of aerosol, it is equal to be conducive to downstream Flow the formation in flow field.

Such as figure, the second absorbing unit 230 includes the shell 2301 for defining the cooling hybrid channel of aerosol, is at least partially disposed in The core 2302 of interior of shell, core 2302 are formed with several aerosol channels, and aerosol reaches aerosol deposition after flowing through aerosol channel Region；The entrance in aerosol channel is distributed in the end face of the outlet end of the cooling hybrid channel of aerosol.

Since core is blocked in one end of shell, the outlet end of the cooling hybrid channel of aerosol terminates at core and is provided with aerosol The end of feeder connection after aerosol is by equal stream process, and by the entrance entrance in uniformly distributed aerosol channel, continues flow field Uniformity, makes the equal stream process of upstream be applied to the subsequent aerosol deposition stage, and core cooperates shell to realize aerosol deposition, upstream Stream allow aerosol to enter before aerosol channel to be in rough flow field and be evenly distributed with state, and the uniformly distributed of aerosol feeder connection then allows respectively It is roughly the same that entrance enters aerosol amount.

In addition, the structure illustrated referring to Fig.1, the first absorbing unit is at least partially arranged in aerosol generating device Two absorbing unit downstreams, the outlet in aerosol channel are distributed in the second absorbing unit and dock place with the first absorbing unit.

Aerosol enters the first absorbing unit after the second absorbing unit carries out aerosol deposition, and the first absorbing unit is mainly logical It crosses filter medium and carries out traditional adsorption cleaning to aerosol, allow aerosol to enter the first absorbing unit with homogeneous state flow field, allow first Filter medium in absorbing unit can also be adequately used for filtering absorption.Cooperate scheme above-mentioned, then this is arranged just into one Step has continued the uniformity in flow field.It is possible thereby to which the filter medium in the first absorbing unit is supported to protect with shorter development length Card ideal filtering adsorption effect, partial offset add the second absorbing unit and increased extensions length compared to traditional cigarette Degree.

In addition, aerosol generating device further includes the surrounding layer for wrapping up aerosol and matrix and filter tip occurring, surrounding layer, which has, to be located at Aerosol deposition region can viewport.

Occur matrix and filter tip to fix aerosol, the way routinely used be occurred with surrounding layer package aerosol matrix with Filter tip, in order to ensure visual effect, selection surrounding layer setting can viewport, can viewport can be the opening that surrounding layer is set, Be also possible to be arranged in the transparent material of the part of surrounding layer, through can viewport be observed that the shell of transparent outer cover, in turn Observe the aerosol deposition formed in aerosol deposition region, can the range of viewport can be completely covered where aerosol deposition region Full scope can also cover the part range where aerosol deposition region, can also be set as needed can viewport shape, Realize the visualization of visible results with standardization.Cooperate aforementioned aerosol to flow means, can through can viewport observe equably It is formed in the aerosol deposition in aerosol deposition region, it is bright that uniform deposition guarantees that smoker can be clearly observed in all directions It deposits aobviously, obtains good effect of visualization.

Mentality of designing in terms of another that further embodiment discloses aerosol generating device provided by the invention And implementation, as shown in Figure 6 to 8, the structure and previous embodiment of aerosol generating device are almost the same comprising:

Matrix occurs for the aerosol for generating inhalable aerosol, and the filter tip that matrix is connect occurs with aerosol；

Filter tip includes the first absorbing unit for filling filter medium and the second suction with aerosol channel and aerosol impact walls Coupon member 330, the first absorbing unit are located at the aerosol exit end of the second absorbing unit 330；

Wherein, illustrate in conjunction with arrow in Fig. 6 (Fig. 5 can also be referred to), aerosol is flowed along aerosol channel and collided at least There is the flow tendency along the second absorbing unit circumferential direction after the aerosol impact walls of part.

This deflecting mode is more conducive to form the tar deposition of (externally observation visual angle) sheet, if it is Radial Flow, The tar deposition then formed will be similar linear deposition, unobvious.In addition, by shape if aerosol after collision is axial flowing It at irregular sinuous flow, controls aerosol and is flowed with circumferential flow tendency, aerosol will be made evenly dispersed, conducive to being located at the of downstream Making full use of for one absorbing unit filter medium, avoids local saturation.

By controlling aerosol deposition, aerosol of the nuisance in aerosol such as flue gas on the inner sidewall of transparent outer cover is allowed to touch The deposition that wall forms sheet is hit, the content of harmful material in smoke such as tar can be effectively reduced, also, pass through aerosol deposition Rather than the mode of adsorption filtration reduces nuisance content, not will increase draw resistance substantially.

The principle of aerosol deposition mainly allows aerosol regularly to collide aerosol impact walls, has the substance of viscosity just in aerosol Meeting adhesion is simultaneously gradually deposited at aerosol impact walls, and the effect of temperature difference can promote aerosol deposition in wall construction, or pass through The variation for controlling aerosol flow rates allows aerosol and wall construction to come into full contact with, can also deposit while aerosol velocity reduces.

Since cigarette is disposable products, the nuisance that the aerosol deposition region of realization nuisance filtering can remove is for example The content of tar is limited, so need that whole aerosol deposition regions is allowed to play one's part to the full.

Aerosol after the second absorbing unit is kept uniformly, because the aerosol for unevenly flowing into the second absorbing unit is difficult It is flowed while carrying out nuisance deposition, in being at least partially disposed in the first absorbing unit such as traditional filtering mouth In the case where the downstream of second absorbing unit, it is also beneficial to traditional filtering mouth structure and equably plays one's part to the full, this will be advantageous In the development length for shortening filter tip, the enough extension length of matrix occurs for the other parts such as aerosol for being thus provided to cigarette Degree guarantees the aerosol aspiration of more sufficient single branch cigarette.

In conjunction with attached drawing, at least partly aerosol impact walls are barred from the flow path after aerosol flows out aerosol channel, aerosol It is flowed after collision at least partly aerosol impact walls along the two sides of aerosol impact walls.

Advantageously being equipped with mode is to flow after allowing aerosol collision to occur along the two sides of aerosol impact walls, in circumferential direction The upper contact range for expanding aerosol and aerosol impact walls, and one aerosol is divided into two strands, play the effect of even flow field.

As another implementation, in embodiment not shown, at least partly aerosol impact walls are barred from aerosol stream Out on the flow path behind aerosol channel, flowed after aerosol collision at least partly aerosol impact walls along the side of aerosol impact walls.

In conjunction with attached drawing, the second absorbing unit includes shell 3301, and aerosol impact walls are formed in the inside of shell 3301；At least The core 3302 of part setting inside the housing, core 3302 are filled in by the opening of shell side, and by being formed in inner walls 3307 stop of protrusion.Core 3302 is formed with several aerosol channels, and 3302 surface of core is formed with to be connected to aerosol channel Several grooves；Aerosol enters groove after flowing through aerosol channel and collides aerosol impact walls.

So arrangement aerosol impact walls will not substantially occur during colliding deposition in aerosol channel Aerosol deposition, so as to guarantee that the sectional dimension of aerosol channel each section on the whole does not change substantially, guarantee was aspirated The resistance to suction aspirated every time in journey is almost the same.Also it can guarantee that the flow field of aerosol is stablized.

And by the constituted mode in above-mentioned aerosol channel, by having the core in aerosol channel in the setting of the second absorbing unit Body, for aerosol generate after flow into the second absorbing unit, the structure of core be set the purpose of be control aerosol flowing direction and trend, Make it possible aerosol deposition position with and range-controllable, and not flow directly into after shell just by depositional mode above-mentioned It is deposited on transparent outer cover inner sidewall, meanwhile, built-in core is set and is also advantageous that assembling in structure, or perhaps is conducive to The application of industrialization volume production, be to be desirable to reduce each knot for constituting element as far as possible to cooperate the demand of mass production Structure complexity, the aerosol channel inside transparent outer cover is provided by assembling mode, is made compared on transparent outer cover ontology Make aerosol channel, it is clear that be it is simpler, the structure of transparent outer cover itself can be made simpler, reduce mould development at This, the same stability for improving structure is shown as long as above scheme can be realized in the cavity for forming accommodating core on transparent outer cover So, such design can guarantee that the production of transparent outer cover has sufficiently high yields.

In addition, by groove structure by forming gap between core and transparent outer cover, gap preferably in homogeneous thickness, gas Mist can rapidly spread after flowing out from aerosol channel and be filled into gap, then formed and deposited in gap location.This is that control is heavy The convenient means of product location and range, as long as the range that control gap is formed, so that it may the range of aerosol sprawling is controlled, so as to Simply to adjust the visualization range of aerosol deposition according to different design ideas.By controlling the trend in gap, can control Aerosol processed provides the support construction of aerosol homogenization flowing in the trend after aerosol deposition occurs for collision.

And the implementation of the means, the main processing by core outer wall, can say core outer wall be processed into a part with The inner sidewall of transparent outer cover is bonded, and another part has fluted part and the inner sidewall of transparent outer cover forms gap.Without pair The inner sidewall of transparent outer cover carries out additional processing, for structure lesser for size, for the difficulty of processing of structural outer Will be far away lower than to the difficulty of processing of inside configuration, such setting is similarly advantageous in industrial application.Obviously, for Aerosol generating device class product such as cigarette, low temperature do not burn cigarette etc. for portable requirement, and the design size of common product is all It is smaller, the secondary operation retrofit in other words for inside configuration is avoided, is all very important.

In conjunction with attached drawing, it is spaced between adjacent groove by muscle 33023.

The setting at interval makes each groove relatively independent, the aerosol flow field after avoiding adjacent groove from being connected to, in the groove that circulates It liquidates and causes sinuous flow, can also reduce to liquidate and cause the counteracting of fluid dynamic energy, reduce by the second absorbing unit to a certain extent Integral suction resistance.

In addition, for making aerosol that will form the area in gap with the implementation of vertical flow direction collision aerosol deposition region Domain is separated, and is thus spaced each region that aerosol deposition occurs, is eliminated adjacent aerosol channel during aerosol deposition The aerosol of outlet outflow is interfered and is influenced.In addition, by the loss and range of deposition of Separation control aerosol, aerosol deposition can See that degree is improved with the reinforcement of deposition thickness, controls the range of loss and deposition, be conducive under equal conditions increase gas The thickness of mist deposition.Meanwhile muscle can also act on the support construction of support core, keep core opposite with transparent outer cover steady It is fixed, avoid product when carrying because shaking causes to loosen.

In optional implementation, the extending direction of groove is one of following or combines: axially extending along core, along core Circumferentially extending and edge extend by axial screw direction of core-center.The groove that attached drawing illustrates the circumferentially extending along core is constituted The constituted mode of mode and the axially extending groove along core.

The gap trend that groove controls as needed, can be formed in the surface of core by the combination of different directions.

In conjunction with attached drawing, the arrangement of groove and muscle 33023 meets at least partly aerosol and touches with aerosol impact walls The side of muscle 33023 between being collided after hitting.

Between the channel side wall that constitutes of muscle, multiple impact is provided, increases nuisance deposition, is able to further decrease nuisance Content.

In conjunction with attached drawing, water conservancy diversion protrusion 33024 is formed in groove, the outlet that water conservancy diversion protrusion 33024 is located at aerosol channel is leaned on The side of nearly first absorbing unit (not shown).

The top of protrusion can abut the inner wall of shell, completely along protrusion after allowing aerosol to flow out the outlet in aerosol channel Circumferential flow of the edge to aerosol deposition region.

In some embodiments, it is formed and is had the gap between raised top and the inner wall of shell.

Make a reservation for certain gap, flowed for tar deposits, advantageously forms more obvious sheet deposition.

In conjunction with attached drawing, core 3302 includes top (stage body being located above in Fig. 7), lower part (underlying in Fig. 7 Body) and separately positioned ring portion 3306；The surface of core 3302 is formed with perforation upper face and at least partly lower surface Slot 33021；The inner wall of ring portion 3306 forms the part for matching and merging enclosed slot 33021 and penetrating through upper face with the outer wall on top, with Form aerosol channel；Between muscle 33023 be set to the surface of lower part and abut ring portion 3306.

The composition structure of this core avoids by fabricated structure and forms channel, especially shape in small structure aperture At the operation with the channel curved, partial impairment is eliminated to industrial application.

In addition, aerosol generating device further includes the surrounding layer for wrapping up aerosol and matrix and filter tip occurring, shell at least forms gas The partially transparent or substantially transparent of mist impact walls；Surrounding layer have be located at aerosol impact walls outside can viewport.

Occur matrix and filter tip to fix aerosol, the way routinely used be occurred with surrounding layer package aerosol matrix with Filter tip, in order to ensure visual effect, selection surrounding layer setting can viewport, can viewport can be the opening that surrounding layer is set, Be also possible to be arranged in the transparent material of the part of surrounding layer, through can viewport be observed that the shell of transparent outer cover, in turn Observe the aerosol deposition formed in aerosol deposition region, can the range of viewport can be completely covered where aerosol deposition region Full scope can also cover the part range where aerosol deposition region, can also be set as needed can viewport shape, Realize the visualization of visible results with standardization.Cooperate aforementioned aerosol to flow means, can through can viewport observe equably It is formed in the aerosol deposition in aerosol deposition region, it is bright that uniform deposition guarantees that smoker can be clearly observed in all directions It deposits aobviously, obtains good effect of visualization.

Claims (12)

1. aerosol generating device, comprising: matrix occurs for the aerosol for generating inhalable aerosol, occurs what matrix was connect with the aerosol Filter tip；It is characterized in that,

The filter tip includes the first absorbing unit for filling filter medium and the second absorbing unit with aerosol deposition region, In, second absorbing unit includes: the cooling hybrid channel of aerosol；It is set to the arrival end of the cooling hybrid channel of the aerosol Current equalizing structure；The aerosol deposition region is set to the outlet end of the cooling hybrid channel of the aerosol；It is logical along the cooling mixing of aerosol The inside of the cooling hybrid channel of the radial communication aerosol in road and an external at least diluent air entrance.

2. aerosol generating device as described in claim 1, which is characterized in that the cooling hybrid channel of the aerosol is column.

3. aerosol generating device as claimed in claim 2, which is characterized in that the length of the cooling hybrid channel of the aerosol is 7mm-14mm。

4. aerosol generating device as described in claim 1, which is characterized in that the current equalizing structure includes several size and shapes Identical duct, the duct are distributed in the plane of the axis of the vertical cooling hybrid channel of the aerosol.

5. aerosol generating device as claimed in claim 4, which is characterized in that the current equalizing structure is grid or orifice plate.

6. aerosol generating device as described in claim 1, which is characterized in that the diluent air entrance is cooling to the aerosol The distance between arrival end of hybrid channel and the diluent air entrance to the cooling hybrid channel of the aerosol outlet end it Between ratio of distances constant be 1:2~20.

7. aerosol generating device as claimed in claim 6, which is characterized in that be equipped in the cooling hybrid channel of the aerosol and flow Part, the stream part are located between the diluent air entrance and the outlet end of the cooling hybrid channel of aerosol.

8. aerosol generating device as claimed in claim 6, which is characterized in that the diluent air entrance is that extending direction is vertical Axial opening in the cooling hybrid channel of the aerosol.

9. aerosol generating device as claimed in claim 6, which is characterized in that the diluent air entrance is multiple along the gas The circumferentially uniformly distributed air inlet of the cooling hybrid channel of mist.

10. aerosol generating device as described in claim 1, which is characterized in that second absorbing unit is described including defining The shell of the cooling hybrid channel of aerosol, is at least partially disposed in the core of interior of shell, it is logical that the core is formed with several aerosols Road, the aerosol reach the aerosol deposition region after flowing through the aerosol channel；The entrance in the aerosol channel is distributed in institute State the end face of the outlet end of the cooling hybrid channel of aerosol.

11. aerosol generating device as claimed in claim 10, which is characterized in that first absorbing unit is at least partly arranged In second absorbing unit downstream, the outlet in the aerosol channel is distributed in second absorbing unit and the first absorbing unit At docking.

12. aerosol generating device as described in any one of claim 1 to 11, which is characterized in that further include wrapping up aerosol The surrounding layer of matrix and filter tip, the surrounding layer have positioned at the aerosol deposition region can viewport.