CN110881693A

CN110881693A - Low-temperature cigarette

Info

Publication number: CN110881693A
Application number: CN201811040674.9A
Authority: CN
Inventors: 刘建福; 钟科军; 郭小义; 黄炜; 尹新强; 易建华; 何友邻; 周永权
Original assignee: China Tobacco Hunan Industrial Co Ltd
Current assignee: China Tobacco Hunan Industrial Co Ltd
Priority date: 2018-09-07
Filing date: 2018-09-07
Publication date: 2020-03-17

Abstract

The invention discloses a low-temperature cigarette, which comprises a shell, a cigarette cavity for accommodating a cigarette part and a cigarette inserting port communicated with the cigarette cavity, wherein an air inlet channel and an air heating unit for heating air in the air inlet channel are arranged in the shell; the preheating unit comprises a heating tube, an inner cavity of the heating tube forms a cigarette cavity, the air heating unit is arranged in the shell, and the air heating unit is a spring type heating wire which is coaxial with the heating tube when the upper cover is connected with the shell. The invention is convenient to clean; the microphone has high sensitivity, low working temperature of the microphone and the PCB, long service life, low maintenance cost and low use cost; the operation mode of the sliding cover conforms to the operation habit of a human body, and the sliding cover is convenient to operate and good in hand feeling by one hand; the display module light that people's eye sees is even soft, not dazzling, and user experience is good.

Description

Low-temperature cigarette

Technical Field

The invention particularly relates to low-temperature smoke.

Background

Among the low temperature cigarette in the market at present, including the shell, be equipped with inlet channel, preheat unit, air heating unit in the shell, be used for holding a cigarette chamber of a cigarette tobacco portion, be equipped with on the cigarette chamber and insert the cigarette mouth. An air inlet communicated with the air inlet channel is formed in the side wall of the shell, the air heating unit is used for heating air in the air inlet channel, and the preheating unit is used for preheating the cigarette tobacco part. When the low-temperature cigarette works, the cigarette tobacco part is inserted into the cigarette cavity from the cigarette inserting opening, then the cigarette tobacco part is preheated through the preheating unit (the tobacco part cannot be atomized to generate smoke in the preheating process), and finally hot air heated by the air heating unit enters the tobacco part from the air inlet channel, and the tobacco part is atomized to generate smoke after absorbing heat of the hot air and enters the oral cavity of a user from the cigarette suction nozzle part to be sucked by the user.

The existing low-temperature smoke has the following defects:

first, preheat unit and air heating unit and all set firmly in the shell, consequently need just can clean a cigarette chamber with the help of supplementary utensil, and it is troublesome to use, and user experience is poor.

Second, be equipped with the miaow head (the pneumatic switch of miaow head promptly) in the inlet channel for whether detect inlet channel and have the air current to pass through, whether detect the user promptly and send the smoking action, therefore the air in the inlet channel can be heated when the smoking, therefore the miaow head is in higher temperature environment for a long time, and long-term use can reduce the sensitivity and the life-span of miaow head. Meanwhile, as the microphone is arranged on the PCB, heat can be quickly conducted to the PCB through the microphone, and the PCB is burnt out due to overhigh temperature.

Thirdly, in order to prevent sundries such as dust from falling into the cigarette cavity from the cigarette inserting port, a sliding cover is arranged at the cigarette inserting port and used for sealing the cigarette inserting port during smoking. The connecting surface of the existing sliding cover and the shell is a plane, so that the sliding mode of the sliding cover is a plane type sliding mode, two hands are needed to cooperate to operate, and the sliding track of the sliding cover does not accord with the operation habit of a human body when the sliding cover is operated by one hand, so that the operation by one hand is inconvenient and the hand feeling is poor.

And fourthly, a display module is arranged on the outer wall of the shell and comprises a plurality of LED lamps for indicating charging time, smoking time, preheating unit temperature, air heating unit temperature and the like. Because the light that the LED lamp sent on the shell outer wall directly incides to in the people's eye, therefore the light that people's eye seen is very inhomogeneous, and is dazzling, and display effect is poor, and user experience is poor.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a low temperature smoke.

In order to solve the first problem in the background art, the technical scheme adopted by the invention is as follows:

the utility model provides a low temperature cigarette, includes the shell, is used for holding a cigarette chamber of a cigarette tobacco portion, inserts the cigarette mouth that is linked together with a cigarette chamber, is equipped with inlet channel in the shell, is used for heating the air heating unit of the air in the inlet channel, sets up on the shell lateral wall with the communicating inlet port of inlet channel, still including the preheating unit that is used for preheating a cigarette tobacco portion, its structural feature is still including the upper cover, preheat unit and a cigarette chamber and locate in the upper cover, the upper cover can dismantle with the shell and link to each other.

Borrow by above-mentioned structure, because preheat in the unit locates the upper cover, the upper cover can be dismantled with the shell and link to each other, demolish the back with the upper cover from the shell, the upper cover also takes out preheating unit, impurity such as preheating unit and cigarette chamber inside residual cigarette foam in can conveniently cleaning the upper cover. After the upper cover and the shell are disassembled, part of smoke can fall at the joint of the upper cover and the shell, the smoke can be blown away only by lightly blowing, the operation is simple and convenient, and the user experience is good.

As a preferred mode, the preheating unit comprises a heating tube, the inner cavity of the heating tube forms the cigarette cavity, the air heating unit is arranged in the shell, and the air heating unit is a spring type heating wire which is coaxial with the heating tube when the upper cover is connected with the shell.

When the upper cover is connected with the shell, the heating tube is coaxially aligned with the spring type heating wire, so that hot air heated by the air heating unit in the air inlet channel can smoothly and quickly enter the heating tube to participate in atomization, and the heat loss of the hot air is reduced; the upper cover can be dismantled with the shell and link to each other, and preheating unit and air heating unit set up respectively at upper cover and shell, so when preheating unit and/or air heating unit damage and need clean, can dismantle independent maintenance change, cleanness out with upper cover and shell, convenient and fast reduces use cost.

Further, be equipped with the footstock in the upper cover, be equipped with the installation pipe on the footstock, in the installation pipe was located to the heating tube, installation socle portion was equipped with and is used for spacing step, the gas passing hole that is used for communicateing inlet channel and cigarette chamber to heating tube and tobacco portion.

The footstock is used for holding fixed heating tube, and spacing step is used for spacing heating tube and a cigarette tobacco portion insert length, and hot-air enters into tobacco portion through crossing the gas pocket and participates in the atomizing.

Furthermore, a main support is arranged in the shell, a pin needle electrically connected with the preheating unit is arranged on the top seat, and a pin joint electrically connected with the power supply is arranged at a position, corresponding to the pin needle, on the main support.

By means of the structure, when the upper cover is covered on the shell, the pin on the top seat is inserted into the pin joint on the main support, so that the preheating unit is electrically connected with the power supply, the structure is simple, and the upper cover and the shell can be more reliably disassembled and connected.

Further, still include thermal-insulated seat, thermal-insulated seat one end links to each other with the heating tube, and the thermal-insulated seat other end links to each other with inserting the cigarette mouth lateral wall.

The heat insulation seat can isolate the heat conduction of the heating tube to the side wall of the cigarette inserting port, and the energy of the hand scalding unit and the preheating unit for preheating the tobacco part is prevented from being dissipated quickly.

As a preferred mode, the top seat is connected with the main bracket buckle.

The top seat is provided with a clamping groove (or a buckle), the main bracket is correspondingly provided with a buckle (or a clamping groove), and when the upper cover is covered on the shell, the upper cover and the main bracket are mutually clamped through the buckle and the clamping groove.

Furthermore, a convex curved surface is arranged on the top seat, and a concave curved surface which is attached to the convex curved surface is arranged on the main support.

Convex surface and concave curved surface's cooperation, face and face contact can be so that the upper cover with the outer cover when closing counterpoint accurate, make pin needle and pin connect can not appear counterpointing inaccurate and can't close or cover tight and the phenomenon of rocking.

For solving the second problem in the background art, furtherly, be equipped with miaow head, miaow head seat, main support and PCB board in the shell, the PCB board passes through the PCB support to be fixed on the main support, still is equipped with thermal-insulated support and thermal-insulated base on the main support, encloses into first cavity between thermal-insulated support and the thermal-insulated base, inlet channel locates in the PCB support, and inlet channel one end communicates with each other with the inlet port, and first cavity intercommunication air heating unit and inlet channel other end, the miaow head sets firmly on the PCB board through miaow head seat, sets up the air vent of intercommunication miaow head and first cavity on the miaow head seat.

By means of the structure, the microphone head seat fixes the microphone head on the PCB. Because the air duct that intercommunication miaow head and first cavity is seted up to miaow head seat inside, therefore when inlet channel had the air current to pass through, first cavity had the air current to flow and passed through, and the atmospheric pressure of first cavity has changed this moment, because air duct and first cavity intercommunication, so the atmospheric pressure of air duct has also changed, and the miaow head can detect the user and send the smoking action this moment. Because first cavity and air vent have isolated the heat that the air heating unit during operation produced, so miaow head operational environment temperature is lower, has improved the sensitivity and the life of miaow head. Meanwhile, the microphone is prevented from rapidly conducting heat to the PCB, the PCB is prevented from being burnt due to overhigh temperature, and the maintenance cost and the use cost are reduced.

Further, the air heating unit is fixedly arranged in the heat insulation pipe, the heat insulation pipe is connected with the heat insulation support, and the heat insulation pipe is provided with a second cavity communicated with the air heating unit and the first cavity.

By means of the structure, cold air enters the air inlet channel from the air inlet hole, sequentially flows through the first cavity and the second cavity to the air heating unit, the air duct is communicated with the first cavity, so that the second cavity can serve as another heat insulation cavity of the air duct, the temperature of the air duct where the microphone is located is further reduced, and the microphone and the PCB are prevented from being overhigh in temperature.

As a preferable mode, the side wall of the air inlet channel is arranged in a mounting hole on the heat insulation base, and the air inlet channel is communicated with the first cavity through the mounting hole.

During the equipment, directly be connected the inlet channel and the mounting hole of PCB board, counterpoint accurate, simple to operate.

Preferably, the PCB support is connected with the main support by a snap.

Be provided with draw-in groove (or buckle) on the main support, the PCB support is last to be correspondingly provided with buckle (or draw-in groove), through buckle and the mutual joint of draw-in groove between PCB support and the main support, easy operation is convenient, and the steadiness is good.

In order to solve the third problem in the background art, the cigarette inserting device further comprises a sliding cover for opening or closing the cigarette inserting port, a top cover is arranged on the upper cover, the cigarette inserting port is arranged on the top cover, a cambered surface which extends along the surface of the cigarette inserting port and is used for sliding the sliding cover is arranged on the top cover, a through groove for guiding the sliding cover in the sliding process is arranged on the cambered surface, the shape of the inner side surface of the sliding cover is consistent with that of the cambered surface, the through groove is not communicated with the cigarette inserting port, and the higher end of the through groove is positioned between the cigarette inserting port and the lower end of the through groove.

By means of the structure, the cigarette inserting opening in the top cover is closed or opened through the sliding cover, and dust and other impurities can be prevented from falling into the cigarette cavity from the cigarette inserting opening. The sliding track of the sliding cover is arc-shaped and accords with the radian of sliding of human hands, so that the sliding cover is more convenient to operate by one hand, slides smoothly and has good hand feeling.

Furthermore, the sliding block is connected with the sliding cover, and the part of the top surface of the top cover, which is connected with the lower end of the through groove, is arranged between the sliding cover and the sliding block.

Further, be equipped with first arch on the sliding block, top surface is equipped with the first recess that is used for when inserting the mouth of cigarette and opening first protruding limiting displacement.

When the slider slides, the slider also slides together. When the sliding cover slides to the cigarette inserting opening to be opened, the first bulge is inserted into the first groove to limit the sliding cover to swing.

Further, be equipped with first arch on the sliding block, top surface is equipped with the second recess that is used for when inserting the mouth and closing first protruding limiting displacement.

When the sliding cover slides to close the cigarette inserting port, the first protrusion is inserted into the second groove to limit the sliding cover to shake.

Furthermore, the sliding block is provided with a second protrusion which is abutted against the side wall of the lower end of the through groove when the cigarette inserting port is opened.

By means of the structure, the second protrusion slides in the range of the through groove, and when the cigarette inserting opening is opened, the second protrusion abuts against the lower end of the side wall of the through groove, so that the sliding cover is prevented from being separated from the top cover.

As a preferred mode, the inner side surface of the sliding cover is provided with a convex block which penetrates through the through groove from outside to inside, and the sliding block is connected with the sliding cover through the convex block.

The lug passes through the through groove, and the sliding cover and the sliding block can be locked through the screw.

Furthermore, a first convex rib and a second convex rib which are parallel to the sliding direction of the sliding cover are arranged on the inner top surface of the top cover, and the first convex rib and the second convex rib are respectively and correspondingly abutted against two opposite side edges of the sliding block; the top surface of the sliding block is in clearance fit with the inner top surface of the top cover.

By means of the structure, the friction force applied to the sliding block is small, and a user can slide the sliding cover conveniently.

In order to solve the fourth problem in the background art, the display module further comprises a display module, the display module comprises a light guide plate and a plurality of LED lamps, the light guide plate is arranged in the housing, the light guide plate is provided with a plurality of lamp slots for mounting the LED lamps, and the light guide plate is provided with a bright light band extending out of the side wall of the housing.

The display module is used for indicating charging time, smoking time, preheating unit temperature, air heating unit temperature and the like. By means of the structure, light emitted by the LED lamp is not directly emitted into human eyes, but is guided to the bright light band on the outer side wall of the shell through the light guide plate, and the length of the bright light band is used for representing information of the low-temperature smoke switched in various functions, such as: charging time, smoking time, preheating unit temperature, air heating unit temperature and the like; because the light that the LED lamp sent filters through the light guide plate, then with light bright light on the bright light area to show the real-time function of this low temperature cigarette, therefore the light that people's eye saw is very even soft, does not dazzle, and people's eye easily wipes other, and information expression is more directly perceived, and user experience is good.

Furthermore, a light isolation groove is arranged between two adjacent lamp grooves on the light guide plate.

Light emitted by the adjacent LED lamps is separated through the light isolation grooves, light crosstalk is prevented, and the light is independently and uniformly guided to the bright light band to be displayed.

Further, the light guide plate is provided with at least one refraction surface for refracting the light rays emitted to the bright light band by the LED lamp.

At least one refraction surface is arranged on the light guide plate, so that light emitted by the LED lamp is refracted when encountering the refraction surface, and the light can be more uniform.

Preferably, the light guide plate is made of a PC material or a PMMA material.

Compared with the prior art, the invention is convenient to clean; the microphone has high sensitivity, low working temperature of the microphone and the PCB, long service life, low maintenance cost and low use cost; the operation mode of the sliding cover conforms to the operation habit of a human body, and the sliding cover is convenient to operate, good in hand feeling, simple, convenient and sanitary by one hand; the display module light that people's eye sees is even soft, not dazzling, and user experience is good.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic structural view when the upper cover is separated from the housing.

Fig. 3 is a schematic view of the appearance of low temperature smoke.

FIG. 4 is a schematic view of the structure of the upper cover assembly.

Fig. 5 is a schematic view of the housing assembly.

Fig. 6 is an exploded view of the upper portion of fig. 1.

Fig. 7 is an exploded view of the middle portion of fig. 1.

Fig. 8 is an exploded view of the lower portion of fig. 1.

Fig. 9 is a schematic diagram of a PCB support structure.

Figure 10 is a schematic view of the main support structure.

FIG. 11 is a schematic diagram of a PCB structure.

Fig. 12 is a schematic view of the top cover structure.

Fig. 13 is a schematic view of a sliding cover structure.

FIG. 14 is a schematic view of a slider structure.

Fig. 15 is a structural schematic view of the cigarette inserting port in an open state.

Fig. 16 is a structural schematic view of the cigarette inserting port in a closed state.

FIG. 17 is a schematic view of a light guide plate structure.

FIG. 18 is a diagram illustrating a connection relationship between a light guide plate and a PCB.

Wherein, 1 is a shell, 101 is an air inlet hole, 2 is a cigarette, 201 is a tobacco part, 202 is a mouthpiece part, 3 is a cigarette cavity, 4 is a cigarette insertion hole, 5 is an air inlet channel, 6 is an air heating unit, 7 is a preheating unit, 8 is an upper cover, 9 is a ceramic cover, 10 is a top seat, 1001 is a mounting tube, 1002 is a limit step, 1003 is an air passing hole, 1004 is a convex curved surface, 11 is a main support, 1101 is a concave curved surface, 1102 is a convex ring, 12 is a pin needle, 13 is a pin joint, 14 is a heat insulation seat, 15 is a microphone head, 16 is a microphone seat, 1601 is a vent channel, 17 is a PCB board, 18 is a PCB support, 19 is a heat insulation support, 20 is a heat insulation base, 2001 is a mounting hole, 21 is a first cavity, 22 is a heat insulation tube, 23 is a sliding cover, 2301 is a convex block, 24 is a top cover, 2401 is a through groove, 2402 is a first groove, 2403 is a second groove, 2404 is a first convex rib, 2405 is a second convex rib, 24025 is a first sliding block 2501, 2502 is the second protruding, 26 is the display module, 2601 is the light guide plate, 26011 is the lamp groove, 26012 is the light area, 26013 is the light-proof groove, 26014 is the refraction face, 2602 is the LED lamp, 27 is the first heat-proof rubber tube, 28 is the second heat-proof rubber tube, 29 is the support lid, 30 is the decorative piece, 31 is the battery, 32 is the USB mouth that charges, 33 is the motor, 34 is the flexible circuit board, 35 is the electron button, 36 is the operation button, 37 is the key-press support, 38 is the second cavity.

Detailed Description

As shown in fig. 1 to fig. 18, the low temperature cigarette comprises a housing 1, a cigarette cavity 3 for accommodating a tobacco part 201 of a cigarette 2, and a cigarette insertion opening 4 communicated with the cigarette cavity 3, wherein an air inlet channel 5 and an air heating unit 6 for heating air in the air inlet channel 5 are arranged in the housing 1, an air inlet hole 101 communicated with the air inlet channel 5 is formed in the side wall of the housing 1, the low temperature cigarette further comprises a preheating unit 7 for preheating the tobacco part 201 of the cigarette 2, and an upper cover 8, wherein the preheating unit 7 and the cigarette cavity 3 are arranged in the upper cover 8, and the upper cover 8 is detachably connected with the housing 1.

Because preheating unit 7 is located in upper cover 8, upper cover 8 can dismantle with shell 1 and link to each other, demolish back with upper cover 8 from shell 1, preheating unit 7 is also taken out to upper cover 8, then invert upper cover 8 and both can pour out residual cigarette foam or clean impurity such as preheating unit 7 and the inside residual cigarette foam of cigarette chamber 3 through burnisher. After upper cover 8 and shell 1 are unpacked apart, have some cigarette foam to probably drop at

upper cover

8 and 1 junction of shell, only need blow gently just can blow away the cigarette foam, easy operation is convenient, and user experience is good.

Preheating unit 7 includes the heating tube, and the heating tube inner chamber forms cigarette chamber 3, air heating unit 6 sets up in shell 1, air heating unit 6 is the spring heater coaxial with the heating tube when upper cover 8 links to each other with shell 1. A ceramic cover 9 is arranged between the spring type heating wire and the heating tube, hot air enters the heating tube through an air outlet of the ceramic cover 9, and the ceramic cover 9 is equivalent to a filter screen at the moment, so that smoke can be prevented from falling into a cavity of the spring type heating wire.

The upper cover 8 is detachably connected with the shell 1, the preheating unit 7 and the air heating unit 6 are respectively arranged on the upper cover 8 and the shell 1, so that when the preheating unit 7 and/or the air heating unit 6 are damaged and need to be cleaned, the upper cover 8 and the shell 1 can be detached to be independently maintained, replaced and cleaned, the use is convenient and fast, and the use cost is reduced.

When the upper cover 8 is connected with the shell 1, the heating tube is coaxially aligned with the spring type heating wire, so that heated hot air in the air inlet channel 5 can smoothly and quickly enter the tobacco atomizing part 201 in the heating tube through the air outlet hole of the ceramic cover 9, and the heat loss of the hot air is reduced; the atomized smoke is taken into the mouth from the mouthpiece portion 202 of the cigarette 2.

Be equipped with footstock 10 in the upper cover 8, be equipped with installation pipe 1001 on the footstock 10, in installation pipe 1001 was located to the heating tube, installation pipe 1001 bottom was equipped with and is used for spacing step 1002, the gas passing hole 1003 that is used for communicateing inlet channel 5 and cigarette chamber 3 to heating tube and tobacco portion 201. The air heating unit 6 is communicated with the preheating unit 7 through the air passing hole 1003.

The footstock 10 is used for supporting the fixed heating tube, the limit step 1002 is used for limiting the insertion length of the heating tube and the tobacco part 201 of the cigarette 2, and hot air enters the tobacco part 201 through the air hole 1003 to participate in atomization.

A main support 11 is arranged in the shell 1, a pin needle 12 electrically connected with the preheating unit 7 is arranged on the top seat 10, and a pin joint 13 electrically connected with a power supply is arranged at a position, corresponding to the pin needle 12, on the main support 11.

When the upper cover 8 is covered on the shell 1, the pin needle 12 on the top seat 10 is inserted into the pin joint 13 on the main support 11, thereby realizing the electric connection of the preheating unit 7 and the power supply, and having simple structure and reliable connection.

The low-temperature cigarette also comprises a heat insulation seat 14, one end of the heat insulation seat 14 is connected with the heating tube, and the other end of the heat insulation seat 14 is connected with the side wall of the cigarette inserting port 4.

The heat insulation seat 14 can prevent the heat of the heating tube from being conducted to the side wall of the cigarette inserting port 4, so that the heat is prevented from being dissipated and hands are prevented from being scalded.

The top seat 10 is connected with the main bracket 11 in a snap-fit manner.

The top seat 10 is provided with a clamping groove (or a buckle), the main bracket 11 is correspondingly provided with a buckle (or a clamping groove), and when the upper cover 8 is covered on the shell 1, the upper cover and the main bracket are mutually clamped through the buckle and the clamping groove.

The top base 10 is provided with a convex curved surface 1004, and the main support 11 is provided with a concave curved surface 1101 attached to the convex curved surface 1004.

The convex curved surface 1004 and the concave curved surface 1101 are matched, so that the alignment is accurate when the upper cover 8 and the shell 1 are covered, and the phenomena of inaccurate alignment and shaking cannot occur.

Be equipped with miaow head 15, miaow head seat 16, main support 11 and PCB board 17 in the shell 1, PCB board 17 passes through PCB support 18 to be fixed on main support 11, still is equipped with thermal-insulated support 19 and thermal-insulated base 20 on the main support 11, and thermal-insulated support 19 covers on closing thermal-insulated base 20, makes to enclose into first cavity 21 between thermal-insulated support 19 and the thermal-insulated base 20, inlet channel 5 locates in PCB support 18, and inlet channel 5 one end communicates with each other with inlet port 101, and first cavity 21 intercommunication air heating unit 6 and the 5 other ends of inlet channel, and miaow head 15 sets firmly on PCB board 17 through miaow head seat 16, sets up the air vent 1601 of intercommunication miaow head 15 and first cavity 21 on the miaow head seat 16.

The microphone holder 16 fixes the microphone 15 to the PCB 17. Because the microphone seat 16 is provided with the air duct 1601 communicating the microphone 15 and the first cavity 21 therein, when the air inlet passage 5 has air flow, the first cavity 21 and the air duct 1601 both have air flow flowing, and at this time, the microphone 15 can detect that the user has a smoking action. Due to the heat insulation effect of the first cavity 21 and the air duct 1601, the temperature of the working environment of the microphone 15 is low, and the sensitivity and the service life of the microphone 15 are improved. Meanwhile, the microphone 15 is prevented from conducting heat to the PCB 17 quickly, the PCB 17 is prevented from being burnt due to overhigh temperature, and the maintenance cost and the use cost are reduced.

The PCB board 17 is fixedly connected with the PCB support 18 by screws.

The air heating unit 6 is fixedly arranged in the heat insulation pipe 22, the heat insulation pipe 22 is connected with the heat insulation support 19, and the heat insulation pipe 22 is provided with a second cavity 38 which is communicated with the air heating unit 6 and the first cavity 21.

Cold air enters the air inlet channel 5 from the air inlet hole 101 and flows through the first cavity 21 and the second cavity 38 to the air heating unit 6 in sequence, and the air duct 1601 is communicated with the first cavity 21, so that the second cavity 38 can be used as another heat insulation cavity of the air duct 1601, the temperature of the air duct 1601 where the microphone 15 is located is further reduced, and the microphone 15 and the PCB 17 are prevented from being too high in temperature.

The side wall of the air inlet channel 5 is arranged in a mounting hole 2001 on the heat insulation base 20, and the air inlet channel 5 is communicated with the first cavity 21 through the mounting hole 2001.

During assembly, the air inlet channel 5 of the PCB 17 is directly connected with the mounting hole 2001, alignment is accurate, and mounting is convenient.

The PCB support 18 is snap-fit connected to the main support 11.

The main support 11 is provided with a clamping groove (or a buckle), the PCB support 18 is correspondingly provided with a buckle (or a clamping groove), the PCB support 18 and the main support 11 are mutually clamped through the buckle and the clamping groove, the operation is simple and convenient, and the stability is good.

The low-temperature cigarette further comprises a sliding cover 23 for opening or closing the cigarette insertion port 4, a top cover 24 is arranged on the upper cover 8, the cigarette insertion port 4 is arranged on the top cover 24, an arc surface which extends along the surface of the cigarette insertion port 4 and is used for sliding the sliding cover 23 is arranged on the top cover 24, a through groove 2401 for guiding the sliding cover 23 in the sliding process is arranged on the arc surface, the sliding cover 23 is arranged on the arc surface of the top cover 24, and the shape of the inner side surface of the sliding cover 23 is consistent with that of the arc surface, so that the sliding cover 23 slides on the arc surface to open or close the cigarette insertion port 4; under the guiding action of the through groove 2401, the sliding cover 23 slides on the top cover 24 to open or close the cigarette insertion opening 4.

The low-temperature cigarette also comprises a sliding block 25 connected with the sliding cover 23, and the sliding block 25 is arranged on the other side surface of the cambered surface corresponding to the sliding cover 23; for the embodiment of the present invention, it can also be said that the sliding cover 23 is provided with an arc surface on the outer bottom surface of the top cover 24, the sliding block 25 is provided with an arc surface on the inner top surface of the top cover 24, and the sliding cover 23 and the sliding block 25 are connected through the through groove 2401, so that the sliding block 25 slides together with the sliding cover 23 when opening or closing the cigarette insertion opening 4, and the sliding cover 23 is prevented from falling off or separating from the arc surface.

The sliding block 25 is provided with a first protrusion 2501, and the inner top surface of the top cover 24 is provided with a first groove 2402 for limiting the first protrusion 2501 when the cigarette insertion opening 4 is opened.

When the slide cover 23 slides, the slide block 25 also slides together. When the sliding cover 23 slides to the cigarette insertion opening 4 and is opened, the first protrusion 2501 is inserted into the first groove 2402 to limit the sliding cover 23 to swing, and meanwhile, the gear position in-place reminding function is similar.

The sliding block 25 is provided with a first protrusion 2501, and the inner top surface of the top cover 24 is provided with a second groove 2403 for limiting the first protrusion 2501 when the cigarette insertion opening 4 is closed.

When the sliding cover 23 slides to the cigarette insertion port 4 and is closed, the first protrusion 2501 is inserted into the second groove 2403 to limit the sliding cover 23 to swing, and meanwhile, the gear position in-place reminding function is similar.

The slide block 25 is provided with a second projection 2502 which abuts against the lower end side wall of the through groove 2401 when the smoke insertion port 4 is opened.

By means of the structure, the second protrusion 2502 slides in the range of the through groove 2401, when the cigarette insertion opening 4 is opened, the second protrusion 2502 abuts against the lower end of the side wall of the through groove 2401, and the sliding cover 23 is prevented from being separated from the top cover 24. When the cigarette insertion opening 4 is closed, the second protrusion 2502 abuts against the high end of the side wall of the through groove 2401, so that the sliding cover 23 is prevented from being separated from the through groove 2401, and the guiding effect of the sliding cover is prevented from being influenced.

The inner side surface of the sliding cover 23 is provided with a projection 2301 penetrating through the through groove 2401 from outside to inside, and the sliding block 25 is connected with the sliding cover 23 through the projection 2301.

The protrusion 2301 penetrates through the through slot 2401, and the sliding cover 23 and the sliding block 25 can be locked by screws, so that the sliding cover 23 and the sliding block 25 form a sliding whole, and the reliability of the sliding process is higher.

The inner top surface of the top cover 24 is provided with a first rib 2404 and a second rib 2405 which are parallel to the sliding direction of the sliding cover 23, and the first rib 2404 and the second rib 2405 are respectively and correspondingly abutted against two opposite side edges of the sliding block 25; the top surface of the slider 25 is clearance fit with the inner top surface of the top cover 24.

In the sliding process of the sliding block 25, the friction force applied to the sliding block 25 is small, which is convenient for the user to slide the sliding cover 23.

The low-temperature cigarette further comprises a display module 26, wherein the display module 26 comprises a light guide plate 2601 and a plurality of LED lamps 2602 which are arranged in the housing 1, the light guide plate 2601 is provided with a plurality of lamp grooves 26011 for mounting the LED lamps 2602, and the light guide plate 2601 is provided with a light band 26012 extending out of the side wall of the housing 1. When the LED lamp 2602 emits light, the light is transmitted to the bright band 26012 by the light guide plate 2601, and then the state of the low-temperature smoke at the present stage, such as the charging time, the smoking time, the temperature of the preheating unit 7, the temperature of the air heating unit 6, and other information, is represented by the bright length of the bright band 26012, so that the user can obtain the relevant information, and the method is intuitive, simple and clear.

A light-blocking groove 26013 is formed between two adjacent light grooves 26011 on the light guide plate 2601, and the light-blocking groove 26013 extends from the bottom surface of the light groove 26011 to the plane where the bright band 26012 is located and cannot penetrate through the bright band 26012, thereby improving the uniform distribution of light on the bright band 26012.

Light emitted from the adjacent LED lamps 2602 is separated by the light-blocking grooves 26013, so that light is prevented from being mixed, and the light is independently and uniformly guided to the bright band 26012 for display.

The light guide plate 2601 has at least one refracting surface 26014 for refracting light emitted from the LED lamp 2602 to the bright band 26012.

At least one refraction surface 26014 is disposed on the light guide plate 2601, so that light emitted from the LED lamp 2602 is refracted when encountering the refraction surface 26014, thereby making the light more uniform.

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

Be provided with protruding circle 1102 on the main support 11, when the upper cover 8 lid closed on shell 1, footstock 10 butt is on this protruding circle 1102, and the axis of air passing hole 1003 and protruding circle 1102 axis coincidence and the diameter of air passing hole 1003 are less than the internal diameter of protruding circle on the footstock 10 to make the air sealing effect outside the sealed hot-air better, prevent that cold air from getting into a cigarette 2 tobacco portion 201, also can prevent to cross gas simultaneously.

The upper cover 8 is internally provided with a first heat insulation rubber tube 27 sleeved outside the heating tube. The second heat insulation rubber tube 28 is sleeved outside the heat insulation tube 22. The heating tube and the spring heating wire are insulated and heat is prevented from being dissipated.

The main bracket 11 is provided with a bracket cover 29.

The outer side wall of the shell 1 is provided with a decorative sheet 30.

The battery 31 is fixed in the housing 1 by the main support 11. The case 1 is provided with a USB charging port 32 for charging the battery 31.

The PCB support 18 is provided with a motor 33 for starting or heating time or vibration prompt for smoking.

The heat insulation pipe 22, the heat insulation support 19 and the heat insulation base 20 are made of high temperature resistant materials, such as: ceramics, PC, etc.

The housing 1 is also provided with a flexible circuit board 34 fixed by the main support 11, and the electronic key 35 is arranged on the flexible circuit board 34. The position on the shell 1 corresponding to the electronic key 35 is fixed with an operation key 36 through a key support 37, and the operation key 36 can be abutted against the electronic key 35 and controls the on-off of the electronic key 35, so as to control whether the low-temperature smoke works or not.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a low temperature cigarette, includes shell (1), a cigarette chamber (3) for holding a cigarette (2) tobacco portion (201), insert cigarette mouth (4) that are linked together with a cigarette chamber (3), be equipped with inlet channel (5) in shell (1), air heating unit (6) for heating the air in inlet channel (5), set up on shell (1) lateral wall with communicating inlet port (101) of inlet channel (5), still including preheating unit (7) that are used for preheating a cigarette (2) tobacco portion (201), its characterized in that still includes upper cover (8), in upper cover (8) are located in preheating unit (7) and a cigarette chamber (3), upper cover (8) can be dismantled with shell (1) and link to each other.

2. The low-temperature cigarette according to claim 1, wherein the preheating unit (7) comprises a heating tube, the inner cavity of the heating tube forms the cigarette cavity (3), the air heating unit (6) is arranged in the housing (1), and the air heating unit (6) is a spring-type heating wire coaxial with the heating tube when the upper cover (8) is connected with the housing (1).

3. The low-temperature cigarette as claimed in claim 2, wherein a top seat (10) is arranged in the upper cover (8), a mounting pipe (1001) is arranged on the top seat (10), the heating pipe is arranged in the mounting pipe (1001), and a limiting step (1002) for limiting the heating pipe and the tobacco part (201) and an air passing hole (1003) for communicating the air inlet channel (5) with the cigarette cavity (3) are arranged at the bottom of the mounting pipe (1001).

4. The low-temperature cigarette according to claim 3, wherein a main support (11) is provided in the housing (1), a pin (12) electrically connected to the preheating unit (7) is provided on the top base (10), and a pin connector (13) electrically connected to a power supply is provided on the main support (11) at a position corresponding to the pin (12).

5. The low-temperature smoke according to claim 2, further comprising a heat insulation seat (14), wherein one end of the heat insulation seat (14) is connected with the heating pipe, and the other end of the heat insulation seat (14) is connected with the side wall of the smoke insertion opening (4).

6. The low-temperature smoke according to claim 4, wherein the top base (10) is provided with a convex curved surface (1004), and the main support (11) is provided with a concave curved surface (1101) which is attached to the convex curved surface (1004).

7. The low-temperature smoke according to any one of claims 1 to 7, wherein a microphone (15), a microphone seat (16), a main support (11) and a PCB (17) are arranged in the housing (1), the PCB (17) is fixed on the main support (11) through a PCB support (18), a heat insulation support (19) and a heat insulation base (20) are further arranged on the main support (11), a first cavity (21) is enclosed between the heat insulation support (19) and the heat insulation base (20), air inlet channel (5) are arranged in PCB support (18), one end of air inlet channel (5) is communicated with air inlet hole (101), first cavity (21) is communicated with air heating unit (6) and the other end of air inlet channel (5), microphone (15) is fixedly arranged on PCB (17) through microphone seat (16), and vent duct (1601) communicated with microphone (15) and first cavity (21) is arranged on microphone seat (16).

8. The low-temperature cigarette according to claim 8, wherein the air heating unit (6) is fixedly arranged in a heat insulating pipe (22), the heat insulating pipe (22) is connected with the heat insulating support (19), and the heat insulating pipe (22) is provided with a second cavity (38) which is communicated with the air heating unit (6) and the first cavity (21).

9. The low-temperature flue gas according to claim 8, wherein the side wall of the air inlet channel (5) is arranged in a mounting hole (2001) on the heat insulation base (20), and the air inlet channel (5) is communicated with the first cavity (21) through the mounting hole (2001).

10. The low-temperature smoke according to any one of claims 1 to 6, further comprising a sliding cover (23) for opening or closing the smoke insertion opening (4), wherein a top cover (24) is arranged on the upper cover (8), the smoke insertion opening (4) is arranged on the top cover (24), an arc surface for sliding the sliding cover (23) is arranged on the top cover (24) and extends along the surface of the smoke insertion opening (4), a through groove (2401) for guiding the sliding cover (23) in the sliding process is arranged on the arc surface, the shape of the inner side surface of the sliding cover (23) is consistent with the shape of the arc surface, the through groove (2401) is not communicated with the smoke insertion opening (4), and the higher end of the through groove (2401) is located between the smoke insertion opening (4) and the lower end of the through groove (2401).

11. The low-temperature smoke according to claim 10, further comprising a sliding block (25) connected to the sliding cover (23), wherein the portion of the top surface of the top cover (24) engaged with the lower end of the through groove (2401) is provided between the sliding cover (23) and the sliding block (25).

12. The cigarette as claimed in claim 10, wherein the sliding block (25) is provided with a first protrusion (2501), and the inner top surface of the top cover (24) is provided with a first groove (2402) for limiting the first protrusion (2501) when the cigarette insertion port (4) is opened.

13. The cigarette as claimed in claim 10, wherein the sliding block (25) is provided with a first protrusion (2501), and the inner top surface of the top cover (24) is provided with a second groove (2403) for limiting the first protrusion (2501) when the cigarette insertion port (4) is closed.

14. The low temperature flue according to claim 10, wherein the sliding block (25) is provided with a second projection (2502) which abuts against the lower end side wall of the through groove (2401) when the flue gas insertion port (4) is opened.

15. The low-temperature smoke as claimed in claim 11, wherein the inner side surface of the sliding cover (23) is provided with a lug (2301) penetrating through the through groove (2401) from outside to inside, and the sliding block (25) is connected with the sliding cover (23) through the lug (2301).

16. The low-temperature smoke according to claim 11, wherein the top cover (24) is provided at an inner top surface thereof with a first rib (2404) and a second rib (2405) parallel to the sliding direction of the sliding cover (23), and the first rib (2404) and the second rib (2405) are respectively and correspondingly abutted against two opposite side edges of the sliding block (25); the top surface of the sliding block (25) is in clearance fit with the inner top surface of the top cover (24).

17. The low-temperature smoke according to claim 10, further comprising a display module (26), wherein the display module (26) comprises a light guide plate (2601) and a plurality of LED lamps (2602) arranged in the housing (1), the light guide plate (2601) is provided with a plurality of light grooves (26011) for mounting the LED lamps (2602), and the light guide plate (2601) is provided with a bright light band (26012) extending out of the side wall of the housing (1).

18. The low temperature cigarette as claimed in claim 17, wherein a light-isolating groove (26013) is formed between two adjacent light grooves (26011) on the light guide plate (2601).

19. The low temperature smoke of claim 17, wherein the light guide plate (2601) has at least one refracting surface (26014) thereon for refracting light rays emitted from the LED lamp (2602) to the bright light band (26012).