CN208807642U - A kind of low temperature cigarette - Google Patents

Abstract

The utility model discloses a kind of low temperature cigarettes, including shell, cigarette chamber, insert mouth, inlet channel is equipped in shell, pcb board, the microphone for whether thering is air-flow to pass through for detecting inlet channel, for heating the air-heating unit of air in inlet channel, the air inlet communicated with inlet channel is opened up on side wall of outer shell, it further include the preheating unit for preheating cigarette tobacco portion, microphone seat is additionally provided in shell, main support, pcb board is fixed on main support by PCB support, heat-insulating bracket and heat insulation pedestal are additionally provided on main support, the first cavity is surrounded between heat-insulating bracket and heat insulation pedestal, inlet channel is set in PCB support, inlet channel one end is communicated with air inlet, first cavity is connected to air-heating unit and the inlet channel other end, microphone is fixedly arranged on pcb board by microphone seat, connection is opened up on microphone seat The air passage of microphone and the first cavity.The utility model microphone high sensitivity, microphone and pcb board operating temperature are low, long service life, and maintenance cost and use cost are low.

Description

A kind of low temperature cigarette

Technical field

In particular to a kind of low temperature cigarette of the utility model.

Background technique

At present in a kind of low temperature cigarette on the market, including shell, interior inlet channel, preheating unit, the air of being equipped with of shell add Hot cell, the cigarette chamber for accommodating cigarette tobacco portion, cigarette chamber, which is equipped with, inserts mouth.It is opened up on side wall of outer shell and inlet channel The air inlet communicated, wherein air-heating unit is used to heat the air in inlet channel, and preheating unit is for preheating cigarette cigarette Careless portion.When low temperature cigarette works, cigarette tobacco portion is inserted into cigarette chamber from slotting mouth first, cigarette is then preheated by preheating unit Tobacco portion (in warm tobacco portion will not be atomized generate smog), finally by the heated hot-air of air-heating unit from Inlet channel enters tobacco portion, and atomization generates smog after the heat of tobacco portion absorption hot-air, enters user from cigarette nozzle section Oral cavity is sucked for user.

Existing this low temperature cigarette has the disadvantages that

Microphone is equipped in inlet channel, and (i.e. microphone jettron is examined for detecting whether inlet channel has air-flow to pass through Survey whether user issues smoking movement), thus the air in inlet channel can be heated in smoking, thus microphone is chronically at In higher temperatures environment, sensitivity and the service life that can reduce microphone is used for a long time.Simultaneously as microphone is set on pcb board, heat meeting It is quickly conducted to pcb board by microphone, causes pcb board temperature excessively high and burn out.

Utility model content

The purpose of this utility model is that in view of the above shortcomings of the prior art, providing a kind of electronic cigarette improved, miaow Head high sensitivity, microphone and pcb board operating temperature are low, long service life, and maintenance cost and use cost are low.

In order to solve the above technical problems, the technical scheme adopted by the utility model is:

A kind of low temperature cigarette, cigarette chamber including shell, for accommodating cigarette tobacco portion, the slotting cigarette being connected with cigarette chamber Mouthful, equipped with inlet channel, pcb board, for detecting microphone that whether inlet channel have air-flow to pass through, for heating air inlet in shell The air-heating unit of air in channel opens up the air inlet communicated with inlet channel on side wall of outer shell, further includes for pre- The preheating unit of hot cigarette tobacco portion is structurally characterized in that in shell and is additionally provided with microphone seat, main support, pcb board passes through PCB support It is fixed on main support, heat-insulating bracket and heat insulation pedestal is additionally provided on main support, is surrounded between heat-insulating bracket and heat insulation pedestal One cavity, the inlet channel are set in PCB support, and inlet channel one end is communicated with air inlet, and the first cavity connection air adds Hot cell and the inlet channel other end, microphone are fixedly arranged on pcb board by microphone seat, and connection microphone and first is opened up on microphone seat The air passage of cavity.

By above structure, microphone is fixed on pcb board by microphone seat.Due to offered inside microphone seat connection microphone with The air passage of first cavity, thus when inlet channel has air-flow to pass through, there are air-flow flowing, therefore the first cavity in the first cavity Air pressure changed；Since air passage is connected to the first cavity, so the air pressure of air passage is also changed, miaow at this time Head is able to detect that air pressure change i.e. user issues smoking movement, so microphone starts work, air-heating unit works, at this time Air-flow successively passes through inlet channel, the first cavity, air-heating unit, tobacco portion, user oral cavity.Therefore the first cavity play every The effect of exhausted air-heating unit release heat and air passage also function to the effect of isolation air-heating unit release heat, Keep microphone operating ambient temperature lower, improves the sensitivity and service life of microphone.Also avoid air-heating unit fast simultaneously Speed conducts heat on pcb board, and pcb board is prevented to be burned because temperature is excessively high, reduces maintenance cost and use cost.

Further, air-heating unit is fixedly arranged in instlated tubular, and instlated tubular is connected with heat-insulating bracket, and instlated tubular, which is equipped with, to be connected Second cavity of blowing air heating unit and the first cavity.

By above structure, cold air enters inlet channel from air inlet, followed by the first cavity, the second cavity to sky Gas heating unit, and air passage is communicated with the first cavity, so that the second cavity can be used as another heat-insulated cavity of air passage, The heat of further isolation air-heating unit passes to microphone by air passage, prevents microphone and pcb board temperature excessively high.

For the inlet channel side wall loaded in the mounting hole in heat insulation pedestal, inlet channel is logical as a preferred method, The mounting hole is crossed to be connected with the first cavity.

When assembling, directly the inlet channel of pcb board is connect with mounting hole, contraposition is accurate, easy for installation.

The PCB support is connected with main support buckle as a preferred method,.

The preheating unit includes heat-generating pipe as a preferred method, and fever tube cavity forms the cigarette chamber, described Air-heating unit is spring heating wire.

The preheating unit and the air-heating unit are coaxial as a preferred method,.

Heat-generating pipe and spring heating wire co-axially align, so that the hot-air in inlet channel by heating can be suitable Benefit, which rapidly enters, participates in atomization in heat-generating pipe, reduce the loss of hot-air heat.

The heat insulation pedestal material is ceramics as a preferred method,.

Card slot is provided on main support as a preferred method, PCB support is equipped with corresponding with card slot on main support Buckle.

Be provided on main support card slot (or buckle), be correspondingly provided with buckle (or card slot) on PCB support, PCB support and It is mutually clamped between main support by buckle and card slot, simple to operate, stability is good.

Pcb board is fixedly connected by screw with PCB support as a preferred method,.

It further, further include the slip lid for being used to open or closing the slotting mouth.

The slotting mouth on top cover is turned off or on by slip lid, can prevent dust and other impurities from falling to cigarette from slotting mouth Branch is intracavitary.

Compared with prior art, the utility model microphone high sensitivity, microphone and pcb board operating temperature are low, service life Long, maintenance cost and use cost are low.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model.

Fig. 2 is structural schematic diagram when upper cover is separated with shell.

Fig. 3 is low temperature cigarette appearance diagram.

Fig. 4 is cover assembly structural schematic diagram.

Fig. 5 is casing assembly structural schematic diagram.

Fig. 6 is the explosive view on the top Fig. 1.

Fig. 7 is the explosive view in the middle part of Fig. 1.

Fig. 8 is the explosive view of the lower part Fig. 1.

Fig. 9 is PCB support structural schematic diagram.

Figure 10 is main bracket structure schematic diagram.

Figure 11 is pcb board structural schematic diagram.

Figure 12 is cap structure schematic diagram.

Figure 13 is sliding lid construction schematic diagram.

Figure 14 is sliding shoe structural schematic diagram.

Figure 15 is to insert mouth structural schematic diagram in the open state.

Figure 16 is to insert mouth to be in close state structural schematic diagram.

Figure 17 is light conducting plate structure schematic diagram.

Figure 18 is light guide plate and pcb board annexation figure.

Wherein, 1 is shell, and 101 be air inlet, and 2 be cigarette, and 201 be tobacco portion, and 202 be nozzle section, and 3 be cigarette chamber, 4 To insert mouth, 5 be inlet channel, and 6 be air-heating unit, and 7 be preheating unit, and 8 be upper cover, and 9 be ceramic cap, and 10 be footstock, 1001 be installing pipe, and 1002 be limited step, and 1003 be air passing hole, and 1004 be convex surface, and 11 be main support, and 1101 be concave curved Face, 1102 be flange collar, and 12 be pin, and 13 be pin connector, and 14 be heat-insulating base, and 15 be microphone, and 16 be microphone seat, and 1601 be ventilation Road, 17 be pcb board, and 18 be PCB support, and 19 be heat-insulating bracket, and 20 be heat insulation pedestal, and 2001 be mounting hole, and 21 be the first cavity, 22 be instlated tubular, and 23 be slip lid, and 2301 be convex block, and 24 be top cover, and 2401 be through slot, and 2402 be the first groove, and 2403 be second Groove, 2404 be the first convex ribs, and 2405 be the second convex ribs, and 25 be sliding shoe, and 2501 be the first protrusion, and 2502 be the second protrusion, 26 be display module, and 2601 be light guide plate, and 26011 be light trough, and 26012 be light band, and 26013 is, every light slot, 26014 are refraction Face, 2602 be LED light, and 27 be the first heat-insulated sebific duct, and 28 be the second heat-insulated sebific duct, and 29 be bracket cover, and 30 be cosmetic sheet, and 31 be electricity Pond, 32 be USB charge port, and 33 be motor, and 34 be flexible circuit board, and 35 be electronic key, and 36 be operation button, and 37 be key branch Frame, 38 be the second cavity.

Specific embodiment

As shown in Fig. 1 to Figure 18, low temperature cigarette includes shell 1, cigarette chamber 3 and cigarette for accommodating 2 tobacco portion 201 of cigarette The slotting mouth 4 that branch chamber 3 is connected, shell 1 is interior to be equipped with inlet channel 5, pcb board 17, for detecting whether inlet channel 5 has air-flow By microphone 15, the air-heating unit 6 for heating the air in inlet channel 5, open up on 1 side wall of shell logical with air inlet The air inlet 101 that road 5 communicates further includes the preheating unit 7 for preheating 2 tobacco portion 201 of cigarette, is additionally provided with microphone in shell 1 Seat 16, main support 11, pcb board 17 are fixed on main support 11 by PCB support 18, and heat-insulating bracket 19 is additionally provided on main support 11 With heat insulation pedestal 20, the first cavity 21 is surrounded between heat-insulating bracket 19 and heat insulation pedestal 20, the inlet channel 5 is set to PCB branch In frame 18,5 one end of inlet channel is communicated with air inlet 101, and the first cavity 21 is connected to air-heating unit 6 and inlet channel 5 is another One end, microphone 15 are fixedly arranged on pcb board 17 by microphone seat 16, and connection microphone 15 and the first cavity 21 are opened up on microphone seat 16 Air passage 1601.

Microphone 15 is fixed on pcb board 17 by microphone seat 16.Due to offering connection microphone 15 and the inside microphone seat 16 The air passage 1601 of one cavity 21, thus when inlet channel 5 has air-flow to pass through, there is air-flow flowing in the first cavity 21, therefore The air pressure of first cavity 21 is changed；Since air passage 1601 is connected to the first cavity 21, so the gas of air passage 1601 Pressure is also changed, and microphone 15 is able to detect that air pressure change and starts work and detect that user issues smoking and moves at this time Make, air-heating unit 6 works, and air-flow successively passes through inlet channel 5, the first cavity 21, air-heating unit 6, tobacco at this time Portion 201, user oral cavity.Therefore the first cavity 21 plays the role of completely cutting off the release heat of air-heating unit 6 and air passage 1601 heat-blocking action keeps 15 operating ambient temperature of microphone lower, improves the sensitivity and service life of microphone 15.Simultaneously also It avoids air-heating unit 6 from quickly conducting heat on pcb board 17, pcb board 17 is prevented to be burned because temperature is excessively high, reduce Maintenance cost and use cost.

Air-heating unit 6 is fixedly arranged in instlated tubular 22, and instlated tubular 22 is connected with heat-insulating bracket 19, and instlated tubular 22, which is equipped with, to be connected Second cavity 38 of blowing air heating unit 6 and the first cavity 21, that is to say, that the second cavity 38 is arranged in air-heating unit 6 Lower end, the first cavity 21 are connected with the second cavity 38.

Cold air enters inlet channel 5 from air inlet 101, adds followed by the first cavity 21, the second cavity 38 to air Hot cell 6, and air passage 1601 is communicated with the first cavity 21, so that the second cavity 38 can be used as another of air passage 1601 Heat-insulated cavity, the further heat for completely cutting off air-heating unit 6 pass to microphone 15 by air passage 1601, prevent microphone 15 It is excessively high with 17 temperature of pcb board.

For 5 side wall of inlet channel loaded in the mounting hole 2001 in heat insulation pedestal 20, inlet channel 5 passes through the mounting hole 2001 are connected with the first cavity 21.

When assembling, directly the inlet channel 5 of pcb board 17 is connect with mounting hole 2001, contraposition is accurate, easy for installation.

The PCB support 18 is connected with the buckle of main support 11.

The preheating unit 7 includes heat-generating pipe, and fever tube cavity forms the cigarette chamber 3, and the air-heating unit 6 is Spring heating wire.

The preheating unit 7 and the air-heating unit 6 are coaxial.

Heat-generating pipe and spring heating wire co-axially align, so that the hot-air in inlet channel 5 by heating can It smoothly rapidly enters and participates in atomization in heat-generating pipe, reduce the loss of hot-air heat.

20 material of heat insulation pedestal is ceramics.

It is provided on main support 11 card slot (or buckle), is correspondingly provided with buckle (or card slot), PCB branch on PCB support 18 It is mutually clamped between frame 18 and main support 11 by buckle and card slot, simple to operate, stability is good.

Pcb board 17 is fixedly connected by screw with PCB support 18.

Low temperature cigarette further includes the slip lid 23 for being used to open or closing the slotting mouth 4.It will be on top cover 24 by slip lid 23 It inserts mouth 4 to turn off or on, can prevent dust and other impurities from falling in cigarette chamber 3 from slotting mouth 4.

Low temperature cigarette further includes upper cover 8, and the preheating unit 7 and cigarette chamber 3 are set in upper cover 8, and upper cover 8 and shell 1 are removable It unloads connected.

Since preheating unit 7 is set in upper cover 8, upper cover 8 is detachably connected with shell 1, by upper cover 8 after the dismounting of shell 1, Upper cover 8 also takes preheating unit 7 out of, and being then inverted upper cover 8 both can pour out residual cigarette foam or be cleaned by burnisher pre- The impurity such as the cigarette foam of 3 internal residual of hot cell 7 and cigarette chamber.After upper cover 8 and shell 1 are dismantled, there is part cigarette foam that may fall Upper cover 8 and 1 junction of shell, it is only necessary to which whiffet can blow away cigarette foam, simple to operate, and user experience is good.

When upper cover 8 is connected with shell 1, heat-generating pipe and spring heating wire co-axially align, so that warp in inlet channel 5 The hot-air for crossing heating can smoothly rapidly enter the atomization tobacco portion 201 of heat-generating pipe by the venthole of ceramic cap 9, reduce heat Atmospheric heat scatters and disappears；The smog after atomization is brought into oral cavity from 2 nozzle section 202 of cigarette.

Ceramic cap 9 is provided between spring heating wire and heat-generating pipe, hot-air is entered by the venthole of ceramic cap 9 In heat-generating pipe, ceramic cap 9 is equivalent to a strainer at this time, can prevent cigarette foam from falling into the cavity of spring heating wire.

Footstock 10 is equipped in the upper cover 8, footstock 10 is equipped with installing pipe 1001, and heat-generating pipe is set in installing pipe 1001, 1001 bottom of installing pipe be equipped with for heat-generating pipe and tobacco portion 201 limit limited step 1002, for being connected to inlet channel 5 With the air passing hole 1003 of cigarette chamber 3.Air-heating unit 6 is connected by air passing hole 1003 with preheating unit 7.

Footstock 10 is used to be inserted into heat-generating pipe and 2 tobacco portion 201 of cigarette for holding fixed heat-generating pipe, limited step 1002 Length limit, hot-air enter tobacco portion 201 by air passing hole 1003 and participate in atomization.

Footstock 10 is equipped with the pin 12 being electrically connected with preheating unit 7, position corresponding with pin 12 on main support 11 Equipped with the pin connector 13 being electrically connected to a power source.

When the lid of upper cover 8 closes on shell 1, the pin 12 on footstock 10 is inserted into the pin connector 13 on main support 11, from And realize being electrically connected for preheating unit 7 and power supply, structure is simple, and connection is reliable.

Low temperature cigarette further includes heat-insulating base 14, and 14 one end of heat-insulating base is connected with heat-generating pipe, 14 other end of heat-insulating base and slotting mouth 4 Side wall is connected.

The heat that heat-insulating base 14 can separate heat-generating pipe is conducted to slotting 4 side wall of mouth, is prevented heat loss and is scalded one's hand.

Footstock 10 is connected with the buckle of main support 11.

It is provided on footstock 10 card slot (or buckle), is correspondingly provided with buckle (or card slot) on main support 11, when upper cover 8 is covered It closes when on shell 1, is mutually clamped by buckle and card slot.

Footstock 10 is equipped with convex surface 1004, and main support 11 is equipped with the concave curved surface 1101 to fit with convex surface 1004.

The cooperation of convex surface 1004 and concave curved surface 1101, upper cover 8 and shell 1 can be made to cover contraposition when closing accurately, will not There is the phenomenon that contraposition is not allowed, is rocked.

The upper cover 8 is equipped with top cover 24, and the slotting mouth 4 is set on the top cover 24, and top cover 24 is equipped with along slotting cigarette Mouthful 4 surfaces extend for sliding the cambered surface of slip lid 23, and be provided in the cambered surface for slip lid 23 in sliding process In the through slot 2401 that play the guiding role, the medial surface shape of slip lid 23 is consistent with the arc shape, so slip lid 23 is in cambered surface Upper sliding opens or closes slotting mouth 4；Alternatively under 2401 guiding role of through slot, slip lid 23 slides on top cover 24, Realization opens or closes slotting mouth 4.

The through slot 2401 is not connected to the slotting mouth 4, and the higher-end of the through slot 2401 is located at slotting mouth 4 and leads to Between the lower end of slot 2401.The face matched with through slot 2401 due to slip lid 23 is arc surfaced, thus the sliding rail of slip lid 23 Mark is arc, meets the radian of human hands sliding, and one-handed performance is more convenient, slides smooth, good hand touch.

Low temperature cigarette further includes the sliding shoe 25 being connected with slip lid 23, the portion that 24 top surface of top cover is mutually connected with 2401 low side of through slot It is divided between slip lid 23 and sliding shoe 25.

Sliding shoe 25 be equipped with the first protrusion 2501,24 inner top surface of top cover be equipped with for slotting mouth 4 opening when to first First groove 2402 of raised 2501 position-limiting actions.

When slip lid 23 slides, sliding shoe 25 also slides together.When slip lid 23, which slides into slotting mouth 4, to be opened, first is convex It rises in 2501 the first grooves 2402 of insertion, to limit the shaking of slip lid 23, while having similar gear reminding effect in place.

Sliding shoe 25 be equipped with the first protrusion 2501,24 inner top surface of top cover be equipped with for slotting mouth 4 closing when to first Second groove 2403 of raised 2501 position-limiting actions.

When slip lid 23, which slides into slotting mouth 4, closes, the first protrusion 2501 is inserted into the second groove 2403, to limit slip lid 23 shake, while having similar gear reminding effect in place.

Sliding shoe 25 is equipped with the second protrusion abutted against when inserting mouth 4 and opening with 2401 lower end side wall of through slot 2502。

By above structure, the second protrusion 2502 is slided in 2401 range of through slot, and when slotting mouth 4 is opened, second is convex It plays 2502 to abut against with 2401 side wall low side of through slot, slip lid 23 is prevented to be detached from top cover 24.When slotting mouth 4 is closed, the second protrusion 2502 with 2401 side wall of through slot is high-end abuts against, prevent slip lid 23 to be detached from through slot 2401, and influence its guiding role.

23 medial surface of slip lid be equipped with ecto-entad pass through through slot 2401 convex block 2301, sliding shoe 25 by convex block 2301 with Slip lid 23 is connected.

Convex block 2301 passes through through slot 2401, can be locked slip lid 23 and sliding shoe 25 by screw, makes slip lid 23 and sliding Block 25 forms a sliding entirety, and the reliability of sliding process is higher.

24 inner top surface of top cover be equipped with first convex ribs 2404 and second convex ribs 2405 parallel with 23 glide direction of slip lid, first Convex ribs 2404 and the second convex ribs 2405 are accordingly abutted against with the two opposite sides side of sliding shoe 25 respectively；Make the top surface of sliding shoe 25 with The inner top surface clearance fit of top cover 24.

During sliding shoe 25 slides, sliding shoe 25 is subject to that friction is small, and user is facilitated to slide slip lid 23.

Low temperature cigarette further includes display module 26, and display module 26 includes the light guide plate 2601 and several LED in shell 1 Lamp 2602, opens up several light troughs 26011 for mounted LED lamp 2602 on the light guide plate 2601, on the light guide plate 2601 With the light band 26012 for stretching out 1 side wall of shell.When LED light 2602 shines, light is conducted by light guide plate 2601 to light band 26012, the real-time status of the low temperature cigarette, such as charging time, smoking are then indicated by the light length of light band 26012 The information such as time, 7 temperature of preheating unit, 6 temperature of air-heating unit facilitate user to obtain relevant information, intuitive, simple bright ?.

It is equipped between two adjacent light troughs 26011 on light guide plate 2601 every light slot 26013, every light slot 26013 from light trough 26011 bottom surface extends to the plane at 26012 place of light band and cannot penetrate through light band 26012, improves light in light band It is uniformly distributed on 26012.

By separating the light that adjacent LED light 2602 issues every light slot 26013, optical crosstalk is prevented, so that light is only It is vertical, be equably directed in light band 26012 and show.

It is used to roll over the transmitting of LED light 2602 to the light of light band 26012 at least one on light guide plate 2601 The plane of refraction 26014 penetrated.

At least one plane of refraction 26014 is set on light guide plate 2601, and the light for issuing LED light 2602 is encountering plane of refraction It is reflected when 26014, light can be made more evenly.

The light guide plate 2601 is made of PC material or PMMA material.

Flange collar 1102 is provided on main support 11, when the lid of upper cover 8 closes on shell 1, footstock 10 is connected to the flange collar On 1102, the axis of air passing hole 1003 is overlapped with 1102 axis of flange collar on footstock 10 and the diameter of air passing hole 1003 is less than flange collar Internal diameter prevents cold air from entering 2 tobacco portion 201 of cigarette so that the air seal except sealing hot-air is more preferable, while It can prevent from collaborating.

The first heat-insulated sebific duct 27 being sheathed on outside heat-generating pipe is equipped in upper cover 8.The second heat-insulated sebific duct is arranged outside instlated tubular 22 28.It realizes to heat-generating pipe and spring heating wire insulation, prevents heat loss.

Main support 11 is equipped with bracket cover 29.

1 lateral wall of shell is equipped with cosmetic sheet 30.

Battery 31 is fixed in shell 1 by main support 11.Shell 1 is equipped with the USB charging for charging to battery 31 Mouth 32.

PCB support 18 is equipped with motor 33, for being switched on or heating time or the vibration prompt that can be smoked.

Instlated tubular 22, heat-insulating bracket 19 are made of high temperature resistant material, such as: the materials such as ceramics, PC.

The flexible circuit board 34 fixed by main support 11 is additionally provided in shell 1, electronic key 35 is set to flexible circuit board On 34.By 37 fixed operation key 36 of key support, operation button 36 can for position corresponding with electronic key 35 on shell 1 35 on-off of electronic key is abutted against and controlled with electronic key 35, controls whether low temperature cigarette works with this.

The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to The specific embodiment stated, the above mentioned embodiment is only schematical, rather than limitation, this field it is common Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model Under, many forms can be also made, these are belonged within the protection scope of the utility model.

Claims (10)

1. a kind of low temperature cigarette, cigarette chamber (3) and cigarette chamber including shell (1), for accommodating cigarette (2) tobacco portion (201) (3) the slotting mouth (4) being connected is equipped with inlet channel (5) in shell (1), pcb board (17), for detecting inlet channel (5) is The no microphone (15) for thering is air-flow to pass through, the air-heating unit (6) for heating the air in inlet channel (5), shell (1) side The air inlet (101) communicated with inlet channel (5) is opened up on wall, further includes the preheating for preheating cigarette (2) tobacco portion (201) Unit (7), which is characterized in that be additionally provided with microphone seat (16), main support (11) in shell (1), pcb board (17) passes through PCB support (18) it is fixed on main support (11), heat-insulating bracket (19) and heat insulation pedestal (20), heat-insulating bracket is additionally provided on main support (11) (19) it is surrounded between heat insulation pedestal (20) the first cavity (21), the inlet channel (5) is set in PCB support (18), air inlet Channel (5) one end is communicated with air inlet (101), and the first cavity (21) is connected to air-heating unit (6) and inlet channel (5) is another End, microphone (15) are fixedly arranged on pcb board (17) by microphone seat (16), and connection microphone (15) and first is opened up on microphone seat (16) The air passage (1601) of cavity (21).

2. low temperature cigarette as described in claim 1, which is characterized in that air-heating unit (6) is fixedly arranged in instlated tubular (22), every Heat pipe (22) is connected with heat-insulating bracket (19), and instlated tubular (22) is equipped with connection air-heating unit (6) and the first cavity (21) Second cavity (38).

3. low temperature cigarette as described in claim 1, which is characterized in that inlet channel (5) side wall is loaded on heat insulation pedestal (20) On mounting hole (2001) in, inlet channel (5) is connected by the mounting hole (2001) with the first cavity (21).

4. low temperature cigarette as described in claim 1, which is characterized in that the PCB support (18) is connected with main support (11) buckle.

5. low temperature cigarette as described in claim 1, which is characterized in that the preheating unit (7) includes heat-generating pipe, and generate heat tube cavity The cigarette chamber (3) is formed, the air-heating unit (6) is spring heating wire.

6. low temperature cigarette as claimed in claim 5, which is characterized in that the preheating unit (7) and the air-heating unit (6) Coaxially.

7. low temperature cigarette as described in claim 1, which is characterized in that heat insulation pedestal (20) material is ceramics.

8. low temperature cigarette as claimed in claim 4, which is characterized in that card slot is provided on main support (11), on PCB support (18) Equipped with buckle corresponding with card slot on main support (11).

9. low temperature cigarette as described in claim 1, which is characterized in that pcb board (17) connects by the way that screw and PCB support (18) are fixed It connects.

10. low temperature cigarette as described in any one of claim 1 to 9, which is characterized in that further include being used to open or closing described insert The slip lid (23) of mouth (4).