CN110089777B

CN110089777B - Surrounding heating heat-preservation type energy-saving electronic cigarette and surrounding heating heat-preservation device thereof

Info

Publication number: CN110089777B
Application number: CN201910446354.1A
Authority: CN
Inventors: 肖鑫
Original assignee: Dongguan Telakang Electronic Technology Co ltd
Current assignee: Dongguan Telakang Electronic Technology Co ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2022-03-04
Anticipated expiration: 2039-05-27
Also published as: CN110089777A

Abstract

The invention relates to a surrounding heating heat-preservation type energy-saving electronic cigarette and a surrounding heating heat-preservation device thereof, which comprise a cigarette holder component and a battery rod component, wherein the cigarette holder component is arranged on the battery rod component; the cigarette holder module comprises a first shell and a surrounding type heating and heat preserving device, the surrounding type heating and heat preserving device comprises a heat insulating cup, a cigarette containing cup and a surrounding type heating unit, the surrounding type heating unit comprises a heating FPC, and the cigarette containing cup is provided with a cigarette containing main cavity and a first contact heat conducting part; the heating FPC is arranged at the periphery of the main cavity of the cigarette container; the heat insulation cup is provided with a first air inlet, and a first air convection gap is kept between the cigarette containing cup and the heat insulation cup; the smoke containing main cavity is provided with an airflow radiation heating through hole, the first air inlet is communicated with the first air convection gap, and air enters the smoke containing main cavity through the first air inlet, the first air convection gap and the airflow radiation heating through hole in sequence; the heating device improves the heating speed in the cigarette holding main cavity, realizes complete heating of the tobacco shreds, and reduces heat loss at the same time.

Description

Surrounding heating heat-preservation type energy-saving electronic cigarette and surrounding heating heat-preservation device thereof

Technical Field

The invention relates to the technical field of electronic cigarettes, in particular to a surrounding heating heat-preservation type energy-saving electronic cigarette and a surrounding heating heat-preservation device thereof.

Background

Electronic cigarettes are common electronic products for smoking cessation and cigarette replacement, and the electronic cigarettes have similar appearance and taste to traditional cigarettes, but do not contain harmful ingredients such as tar, so the electronic cigarettes are widely used in the market.

At present, the electronic cigarette in the prior art has slow heating speed and more heat loss, and influences the use feeling of a user. In addition, the periphery of the heating element of the electronic cigarette is pasted and fixed by high-temperature-resistant adhesive paper, so that heat is easy to lose, and the use efficiency of electric energy is low.

Therefore, in the present patent application, the applicant elaborately researched a surrounding heating insulation type energy-saving electronic cigarette and a surrounding heating insulation device thereof to solve the above problems.

Disclosure of Invention

The invention aims at the defects of the prior art, and mainly aims to provide a surrounding heating heat-preservation type energy-saving electronic cigarette and a surrounding heating heat-preservation device thereof, which improve the heating speed in a cigarette containing main cavity, realize the complete heating of tobacco shreds and reduce the heat loss.

In order to achieve the purpose, the invention adopts the following technical scheme:

a surrounding type heating and heat-preserving device comprises a heat-insulating cup, a smoke containing cup and a surrounding type heating unit, wherein the smoke containing cup and the surrounding type heating unit are arranged in the heat-insulating cup;

the heating FPC is arranged at the periphery of the cigarette containing main cavity, and the inner side surface of the heating FPC is tightly attached to the outer side surface of the cigarette containing cup;

the heat insulation cup is provided with a first air inlet, and a first air convection gap is kept between the outer side surface of the cigarette containing cup and the inner side surface of the heat insulation cup; the lateral wall of holding cigarette main cavity body is provided with air current radiation heating through-hole, and first air inlet link up with first air convection gap, and the air gets into through first air inlet, first air convection gap, air current radiation heating through-hole in proper order and holds cigarette main cavity internal portion.

As an optimal scheme, still be provided with first silica gel position sleeve in the heat insulation cup, first silica gel position sleeve cover is located the FPC's that generates heat periphery so that the FPC clamp that generates heat locates between holding cigarette cup and the first silica gel position sleeve, keep having the second air convection clearance between the medial surface of first silica gel position sleeve and heat insulation cup, the second air convection clearance link up with first air convection clearance, and the air is inside holding cigarette main cavity body through first air inlet, second air convection clearance, first air convection clearance, air current radiation heating through-hole entering in proper order.

As a preferable scheme, the surrounding type heating unit further comprises a heat conducting cup; the heat conducting cup is provided with a heat conducting cavity and a second contact heat conducting part connected to the bottom of the heat conducting cavity, and the upper surface of the second contact heat conducting part faces the inside of the heat conducting cavity; the heat-conducting cup is sleeved on the periphery of the cigarette cup, the inner side face of the heat-conducting cup is tightly attached to the outer side face of the cigarette cup, the inner bottom face of the first contact heat-conducting portion is tightly attached to the outer top face of the second contact heat-conducting portion, and the heating FPC is arranged on the periphery of the heat-conducting cup in a surrounding mode.

As a preferred scheme, a second silica gel positioning sleeve is further arranged in the heat insulation cup, and the second silica gel positioning sleeve is sleeved on the periphery of the heating FPC so that the heating FPC is clamped between the heat conduction cup and the second silica gel positioning sleeve; and a third air convection gap is kept between the inner side surfaces of the second silica gel positioning sleeve and the heat insulation cup and communicated with the first air convection gap, and air enters the smoke containing main cavity body through the first air inlet, the third air convection gap, the first air convection gap and the air flow radiation heating through hole in sequence.

Preferably, the upper end of the heat conducting cup integrally extends upwards in an inclined way outwards to form an annular inclined edge.

As a preferable scheme, the inner bottom surface of the heat insulation cup is provided with a support convex column in an upward protruding manner, and the bottom end of the heat conduction cup is limited at the top end of the support convex column.

As a preferable scheme, an installation convex column is convexly arranged on the inner bottom surface of the heat insulation cup upwards, the top end of the installation convex column horizontally extends outwards to form a first annular positioning part, a one-way installation valve is arranged on the second contact heat conduction part, the heat conduction cup is arranged in the heat insulation cup from top to bottom, the installation convex column is inserted into the one-way installation valve, and the top end of the one-way installation valve abuts against the lower end of the first annular positioning part.

As a preferred scheme, the heating FPC is curled to form a cylinder shape, the lower end of the heating FPC integrally extends downwards to form two first inserting ends, two first inserting holes are formed in the first silica gel positioning sleeve, the heating FPC is arranged in the first silica gel positioning sleeve from top to bottom, and each first inserting end is inserted into the corresponding first inserting hole downwards; the lower extreme of first silica gel position sleeve is connected with fixed chassis, and each first grafting end is down inserted corresponding first spliced eye and is outwards buckled and form the fixed part behind, and the fixed part passes through a fixed chassis of electrically conductive piece connection.

As a preferred scheme, the heating FPC is curled to form a cylinder shape, the lower end of the heating FPC integrally extends downwards to form a second inserting end, the heat insulation cup is provided with a second inserting hole, the heating FPC is arranged in the heat insulation cup from top to bottom, and the second inserting end is inserted into the second inserting hole downwards and extends out of the heat insulation cup.

A surrounding heating heat preservation type energy-saving electronic cigarette comprises a cigarette holder component and a battery rod component; the cigarette holder module comprises a first shell and a surrounding type heating and heat-preserving device arranged in the first shell, wherein the surrounding type heating and heat-preserving device is the surrounding type heating and heat-preserving device; the battery pole module comprises a second shell and a power supply which is arranged in the second shell and used for supplying power; the heat-generating FPC is electrically connected to a power supply.

Compared with the prior art, the invention has obvious advantages and beneficial effects, particularly:

1. the heating FPC is tightly arranged at the periphery of the cigarette containing main cavity, and the inner side surface of the heating FPC is tightly attached to the outer side surface of the cigarette containing cup, so that the heating speed in the cigarette containing main cavity is increased, the tobacco shreds are completely heated, and the heat loss is reduced;

2. through the tight connection of the heating FPC and the heat conducting cup and the tight connection of the heat conducting cup and the cigarette containing cup, on one hand, the heating speed in the cigarette containing main cavity is improved, the tobacco shreds are completely and uniformly heated, the heat loss is also reduced, and on the other hand, the heating stability of the heating FPC is improved;

3. the first silica gel positioning sleeve or the second silica gel positioning sleeve is sleeved on the periphery of the heating FPC, so that heat in the smoke containing main cavity is well stored in the smoke containing main cavity, heat loss is avoided, and the use efficiency of electric energy is greatly improved;

4. the fixed chassis and the first shell are matched through the positioning clamping protrusions and the annular positioning grooves, so that the assembly is convenient, and the firmness is good;

5. through the design of the annular bevel edge of the heat conduction cup, the cigarette containing cup is convenient to install in the heat conduction cup from top to bottom, the assembly is convenient, and the positioning accuracy is good;

6. according to the electronic cigarette, the whole structure design is ingenious and reasonable, the parts are convenient and stable to assemble, the reliability and stability of the electronic cigarette in the charging and using processes are guaranteed, the product quality and the using performance are improved, and the service life of the product is prolonged.

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic perspective view of an assembly structure according to a first embodiment of the present invention;

FIG. 2 is an exploded view of the first embodiment of the present invention;

figure 3 is a cross-sectional view of a mouthpiece component according to a first embodiment of the present invention;

figure 4 is an exploded view of a mouthpiece component according to a first embodiment of the present invention;

fig. 5 is an exploded view of the heat-generating FPC and the first silicone positioning sleeve according to the first embodiment of the present invention;

FIG. 6 is a cross-sectional view of a battery rod assembly according to a first embodiment of the present invention;

FIG. 7 is an exploded view of a battery rod assembly according to a first embodiment of the present invention;

FIG. 8 is a schematic perspective view of a second embodiment of the present invention;

FIG. 9 is a schematic view of a first exploded structure of a surrounding type heating and heat-preserving apparatus according to a second embodiment of the present invention;

FIG. 10 is a schematic view of a second disassembled structure of the surrounding type heating and heat-preserving apparatus according to the second embodiment of the present invention (the heat-insulating cup is not shown);

FIG. 11 is a first cross-sectional view of a wrap-around thermal insulator (without the inclusion of smoke) according to a second embodiment of the present invention;

FIG. 12 is a second cross-sectional view of the wrap-around heat retention device (including the body) according to a second embodiment of the present invention.

The reference numbers illustrate:

10. battery bar assembly 101, first elastic projection

102. A first groove 103 and a second elastic bulge

104. Second groove 105, first air convection gap

106. Second air convection gap 107 and second magnetic suction joint

108. Third air convection gap

109. First air inlet

11. Second housing 111, second mounting cavity

112. Display screen assembly mounting hole 113 and display screen

114. Function key 115, fastener

12. Power supply 13 and battery compartment

14. Master control circuit board

20. Cigarette holder component 201 and second magnetic part

21. First housing 211, first installation cavity

212. Annular positioning groove 213 and clamping protrusion

22. Extraction part 221, second annular positioning part

222. Spacing step part 223, first hold vice cavity of cigarette

23. Heat insulation cup 231 and heat insulation inner side wall

232. Heat insulation outer side wall 233 and heat insulation cavity

24. Cigarette containing cup 241 and main cigarette containing cavity

242. First contact heat transfer portion 243, air flow radiation heating through hole

25. Heating FPC 251 and plug-in terminal

252. Fixing part

26. First silica gel position sleeve 261, spliced eye

27. Fixed chassis 271 and positioning clamp

272. Conductive member

28. Sealing washer 281, first annular sealing flange

282. Second annular sealing convex edge 283 and second smoke containing auxiliary cavity

29. Toggle switch 291 and toggle projection

292. Shielding part 293 and cigarette body abdicating cavity

30. Smoke body 301 and fourth air convection gap

40. Heat conduction cup 41 and heat conduction cavity

42. Second contact heat transfer portion 43, one-way installation valve

431. First conical body 44, annular beveled edge

50. Cigarette containing cup 51 and main cigarette containing cavity

511. The air flow radiation heating through hole 52, the first contact heat transfer part

521. Boss 522, convection chamber

523. Concave cavity

60. Heat insulation cup 61, second plug hole

62. Mounting convex column 621 and first annular positioning part

622. Air hole 63 and supporting convex column

64. One-way air inlet valve 641 and second conical body

25a, a heating FPC 251a and a second plug terminal

70. And a second silica gel positioning sleeve.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.

As shown in fig. 1 to 12, a surrounding heating and heat preserving type energy-saving electronic cigarette comprises a cigarette holder component 20 and a battery rod component 10; the mouthpiece component 20 and the battery rod component 10 are of an integral structure or of a separate structure, and in this embodiment, the mouthpiece component 20 and the battery rod component 10 are of a separate structure.

The cigarette holder component 20 comprises a first shell 21 and a surrounding type heating and heat-preserving device arranged in the first shell 21; the first shell 21 is provided with a first mounting cavity 211, a second air inlet and an air outlet, the surrounding type heating and heat-insulating device is mounted in the first mounting cavity 211, and outside air enters the surrounding type heating and heat-insulating device through the second air inlet and then exits from the air outlet;

the battery rod assembly 10 includes a second housing 11 and a power source 12 installed in the second housing 11 for supplying power, preferably, the power source 12 is a power supply battery, the first housing 21 is detachably connected to the second housing 11, and the power source 12 and the surrounding type heating and heat preserving device can be selectively powered on or off.

The first housing 21 and the second housing 11 are assembled together, one of the first housing 21 and the second housing 11 has a first elastic protrusion 101, and the other has a first groove 102, and the first elastic protrusion 101 is fitted into the first groove 102. Preferably, the first elastic protrusion 101 is a charging elastic thimble, the first elastic protrusion 101 is electrically connected to the power source 12, the first groove 102 is a conductive groove, and the first elastic protrusion 101 is electrically connected to the conductive groove.

Preferably, the second housing 11 has a second elastic protrusion 103, the first housing 21 has a second groove 104, the second elastic protrusion 103 is a temperature detecting probe electrically connected to the power supply 12, the first housing 21 and the second housing 11 are assembled, and the temperature detecting probe is fitted in the second groove 104 to detect the temperature of the first housing 21.

The first shell 21 is provided with a clamping protrusion 213, the second shell 11 is provided with a clamping groove 115, the first shell 21 extends into the second shell 11, the clamping protrusion 213 is adapted to the clamping groove 115, and the first elastic protrusion 101 is adapted to the first groove 102.

The second housing 11 is provided with a second mounting cavity 111, a battery compartment 13 and a main control circuit board 14 are arranged in the second mounting cavity 111, the power supply 12 is arranged in the battery compartment 13, the main control circuit board 14 is connected with the battery compartment 13, the power supply 12 is electrically connected with the main control circuit board 14, and the main control circuit board 14 is electrically connected with a heating FPC 25 of the following surrounding type heating and heat preserving device. The second housing 11 is provided with a display screen assembly mounting hole 112 communicated with the second mounting cavity 111, a display screen 113 and a plurality of function keys 114 are arranged in the second mounting cavity 111, wherein the function keys 114 include a power switch key and a heating key, the display screen 113 and the function keys 114 are both arranged in the display screen assembly mounting hole 112, the display screen 113 and the function keys 114 are exposed out of the display screen assembly mounting hole 112, and the display screen 113 and the function keys 114 are both electrically connected to the main control circuit board 14.

The surrounding type heating and heat preserving device comprises a heat insulating cup 23, a cigarette accommodating cup 24 arranged in the heat insulating cup 23 and a surrounding type heating unit, wherein the surrounding type heating unit comprises a heating FPC 25, the cigarette accommodating cup 24 is provided with a cigarette accommodating main cavity 241 and a first contact heat conducting part 242 connected to the bottom of the cigarette accommodating main cavity 241, and the upper surface of the first contact heat conducting part 242 is arranged towards the interior of the cigarette accommodating main cavity 241;

the heat insulation cup 23 has a heat insulation inner side wall 231 and a heat insulation outer side wall 232 connected to the heat insulation inner side wall 231, a heat insulation cavity 233 is formed between the heat insulation outer side wall 232 and the heat insulation inner side wall 231, the heat insulation cavity 233 is arranged around the periphery of the cigarette containing cup 24, the heat insulation cavity 233 is filled with a heat insulation material, or the inner and outer walls of the heat insulation cavity 233 are coated with a heat insulation coating.

The cigarette containing cup 24 can be arranged in the heat insulation cup 23 in a vertically taking and placing mode, the top end of the cigarette containing cup 24 is in sealing connection with the heat insulation cup 23, and the upper end of the first air convection gap 105 is sealed.

The cigarette containing cup 24 is connected with an extraction part 22 which is convenient for taking the cigarette containing cup 24 out of the heat insulation cup 23, the periphery of the upper end of the extraction part 22 horizontally extends outwards to form a second annular positioning part 221, the lower section of the extraction part 22 extends into the heat insulation cup 23, and the second annular positioning part 221 extends out of the upper end of the heat insulation cup 23; the extracting part 22 has a first smoke containing auxiliary cavity 223 penetrating the upper and lower end faces, a limiting step part 222 is formed on the inner wall of the first smoke containing auxiliary cavity 223, and the upper end face of the smoke containing main cavity 241 is limited on the lower end face of the limiting step part 222.

Still installed seal ring 28 in the first shell 21, seal ring 28 has the second and holds the vice cavity 283 of cigarette, the second holds the inner wall of the vice cavity 283 of cigarette and is formed with first annular sealed chimb 281, the internal diameter of first annular sealed chimb 281 is less than the second and holds the internal diameter of the vice cavity 283 of cigarette, the integrative downward extension of lower extreme of seal ring 28 has second annular sealed chimb 282, the internal diameter of second annular sealed chimb 282 is greater than the second and holds the internal diameter of the vice cavity 283 of cigarette, and second annular sealed chimb 282 supports and leans on the upper end of second annular location portion 221 and seals in the up end of the vice cavity 223 of first appearance cigarette.

A toggle switch 29 is further arranged in the first shell 21, the toggle switch 29 is arranged at the upper end of the heat insulation cup 23, the toggle switch 29 is arranged at the upper end of the sealing washer 28, the toggle switch 29 is provided with a toggle convex portion 291, a shielding portion 292 and a cigarette body abdicating cavity 293, the toggle convex portion 291 is arranged at the upper end of the toggle switch 29, and the cigarette body abdicating cavity 293 penetrates through the upper end face and the lower end face of the toggle switch 29;

in the first use state, the cigarette body abdicating cavity 293 and the cigarette containing main cavity 241 are both located on the same axis, so that the cigarette body 30 can be conveniently placed;

in the second use state, the toggle convex portion 291 is toggled to the opposite side, the shielding portion 292 is located right above the smoke containing main cavity 241, and the shielding portion 292 covers the upper end of the smoke containing main cavity 241.

In the first embodiment, the heating FPC 25 is closely arranged on the periphery of the smoke containing main cavity 241, the inner side surface of the heating FPC 25 is closely attached to the outer side surface of the smoke containing cup 24, and the heating FPC 25 is electrically connected to the power supply 12;

the heat insulation cup is provided with a first air inlet which is communicated with a second air inlet, and a first air convection gap 105 is kept between the outer side surface of the cigarette containing cup 24 and the inner side surface of the heat insulation cup 23; the side wall of the smoke containing main cavity 241 is provided with an air flow radiation heating through hole 243, the first air inlet is communicated with the first air convection gap 105, and air enters the smoke containing main cavity 241 through the second air inlet, the first air inlet 109, the first air convection gap 105 and the air flow radiation heating through hole 243 in sequence.

Still be provided with first silica gel position sleeve 26 in the heat-insulating cup 23, the periphery of generating heat FPC 25 is located so that the FPC clamp that generates heat locates between holding cigarette cup 24 and first silica gel position sleeve 26 to first silica gel position sleeve 26 cover, keep having second air convection gap 106 between the medial surface of first silica gel position sleeve 26 and heat-insulating cup 23, second air convection gap 106 link up with first air convection gap 105, and the air is inside holding cigarette main cavity 241 through second air inlet, first air inlet, the piece that generates heat, second air convection gap 106, first air convection gap 105, the entering of air current radiation heating through-hole 243 in proper order.

In the first embodiment, the heating FPC 25 is curled to form a cylindrical shape, the lower end of the heating FPC 25 integrally extends downward to form two first insertion ends 251, the first silicone positioning sleeve 26 is provided with two first insertion holes 261, the heating FPC 25 is installed in the first silicone positioning sleeve 26 from top to bottom, and each first insertion end 251 is inserted downward into the corresponding first insertion hole 261. Preferably, the lower end of the first silicone positioning sleeve 26 is connected to a fixing chassis 27, each first inserting end 251 is inserted into a corresponding first inserting hole 261 downwards and then bent outwards to form a fixing portion 252, and the fixing portion 252 is connected to the fixing chassis 27 through a conductive member 272.

Preferably, the lower end of the insulating chamber 233 has an annular opening, and the fixing base plate 27 is disposed at the annular opening. The periphery of the fixed chassis 27 is convexly provided with a plurality of positioning clamping protrusions 271, the first shell 21 is provided with an annular positioning groove 212, the fixed chassis 27 is arranged in the first shell 21 from bottom to top, and the positioning clamping protrusions 271 are matched in the annular positioning groove 212.

Next, another embodiment of the surrounding type heating unit, i.e., embodiment two, is described. In the second embodiment, the surrounding heating unit further comprises a heat conducting cup 40; the heat conducting cup 40 is provided with a heat conducting cavity 41 and a second contact heat conducting part 42 connected to the bottom of the heat conducting cavity 41, and the upper surface of the second contact heat conducting part 42 faces the inside of the heat conducting cavity 41; the heat conducting cup 40 is sleeved on the periphery of the cigarette containing cup 50, and the inner side surface of the heat conducting cup 40 is tightly attached to the outer side surface of the cigarette containing cup 50, preferably, the upper end of the heat conducting cup 40 integrally extends outwards in an inclined and upward manner to form an annular bevel edge 44, so that the cigarette containing cup 50 can be inserted conveniently.

The inner bottom surface of the first contact heat conduction part 52 of the cigarette containing cup 50 is tightly attached to the outer top surface of the second contact heat conduction part 42, the heating FPC 25a is tightly arranged around the periphery of the heat conduction cup 40, and the inner side surface of the heating FPC 25a is tightly attached to the outer side surface of the heat conduction cup 40; the heating FPC 25a is curled to form a cylinder shape, the lower end of the heating FPC 25a integrally extends downwards to form a second inserting end 251a, the heat insulation cup 60 is provided with a second inserting hole 61, the heating FPC 25a is arranged in the heat insulation cup 60 from top to bottom, and the second inserting end 251a is inserted into the second inserting hole 61 downwards and extends out of the heat insulation cup 60. In the second embodiment, the heat generating FPC 25a is provided with a thermistor and a temperature sensor.

The inner bottom surface of the heat insulation cup 60 is convexly provided with a plurality of supporting convex columns 63 and an installation convex column 62 upwards, all the supporting convex columns 63 are annularly distributed on the periphery of the installation convex column 62, and the bottom end of the heat conduction cup 40 is limited at the top end of the supporting convex column 63.

The top end of the mounting convex column 62 extends horizontally outwards to form a first annular positioning part 621, the second contact heat conducting part 42 is provided with a one-way mounting valve 43, the heat conducting cup 40 is mounted in the heat insulation cup 60 from top to bottom, the mounting convex column 62 is inserted into the one-way mounting valve 43, and the top end of the one-way mounting valve 43 abuts against the lower end of the first annular positioning part 621. Preferably, the one-way installation valve 43 comprises a first conical body 431 with a large bottom and a small top, the first conical body 431 being integrally connected to the second contact thermal conductor 42. In the present embodiment, the periphery of the mounting boss 62 is provided with an air hole 622, in the second embodiment, the heat insulation cup 60 is provided with a first air inlet 109, and the air hole 622 is respectively communicated with the first air convection gap 105 and the first air inlet 109.

A second silica gel positioning sleeve 70 is further arranged in the heat insulation cup 60, and the second silica gel positioning sleeve 70 is sleeved on the periphery of the heating FPC 25a so that the heating FPC 25a is clamped between the heat conduction cup 40 and the second silica gel positioning sleeve 70; keep having third air convection gap 108 between second silica gel position sleeve 70 and the medial surface of thermal-insulated cup 60, third air convection gap 108 and first air convection gap 105 link up, and inside the air flows radiation heating hole 511511 entering appearance cigarette main cavity 51 of holding cigarette cup 50 through first air inlet 109, third air convection gap 108, first air convection gap 105, appearance cigarette cup 50 in proper order, reentrant by holding fourth air convection gap 301 that forms between cigarette main cavity 51 and the cigarette body 30, get into in the cigarette body 30 at last.

The first air inlet 109 is provided with a one-way air inlet valve 64, and the outside air passes through the first air convection gap 105 through the second air inlet, the first air inlet 109 and the one-way air inlet valve 64 in sequence. The one-way air intake valve 64 includes a second conical body 641 with a larger bottom and a smaller top, the second conical body 641 is integrally connected to the heat insulation cup 60, and the top end of the second conical body 641 is provided with a one-way air vent 622.

The upper surface of the first contact heat-conducting part 52 is convexly provided with a convex part 521, a convection cavity 522 is formed above the first contact heat-conducting part 52 and corresponds to the periphery of the convex part 521, air enters the smoke containing main cavity 51 through the airflow radiation heating hole 511, then enters the convection cavity 522 downwards, and finally enters the smoke containing main cavity 51 upwards, and the airflow radiation heating hole 511 is positioned on the upper side of the convection cavity 522. The protruding portion 521 is used for propping against the cigarette body 30, so that air circulation is facilitated, and air blockage is avoided.

A concave cavity 523 is concavely formed at the bottom of the first contact heat conduction part 52 corresponding to the lower part of the convex part 521, the one-way installation valve 43 is positioned in the concave cavity 523, and the installation convex column 62 passes through the one-way installation valve 43 and extends into the concave cavity 523. A part of the heat generated by the heat generating FPC 25a is conducted to the first contact thermal conduction portion 52 through the second contact thermal conduction portion 42 of the thermal conduction cup 40. Through the arrangement of the concave cavity 523, heat generated by the heating element FPC through the one-way mounting valve 43 can be collected at one position, so that the efficiency of increasing the temperature in the heat insulation cup 60 is improved, and the heating efficiency of the cigarette body 30 is improved; further, the projection 521 is in contact with the front end of the cigarette body 30, and the heat conduction performance of the first contact heat conduction portion 52 is improved.

The design key points of the invention are as follows:

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. A surrounding type heating and heat preservation device is characterized in that: the cigarette containing cup comprises a heat insulation cup, a cigarette containing cup and a surrounding type heating unit, wherein the cigarette containing cup and the surrounding type heating unit are arranged in the heat insulation cup, the surrounding type heating unit comprises a heating FPC, the cigarette containing cup is provided with a cigarette containing main cavity body and a first contact heat conducting part connected to the bottom of the cigarette containing main cavity body, and the upper surface of the first contact heat conducting part faces to the interior of the cigarette containing main cavity body;

the heat insulation cup is provided with a first air inlet, and a first air convection gap is kept between the outer side surface of the cigarette containing cup and the inner side surface of the heat insulation cup; the side wall of the cigarette containing main cavity body is provided with an airflow radiation heating through hole, the first air inlet is communicated with the first air convection gap, and air enters the cigarette containing main cavity body through the first air inlet, the first air convection gap and the airflow radiation heating through hole in sequence;

the surrounding type heating unit also comprises a heat conducting cup; the heat conducting cup is provided with a heat conducting cavity and a second contact heat conducting part connected to the bottom of the heat conducting cavity, and the upper surface of the second contact heat conducting part faces the inside of the heat conducting cavity; the heat-conducting cup is sleeved on the periphery of the cigarette containing cup, the inner side surface of the heat-conducting cup is tightly attached to the outer side surface of the cigarette containing cup, the inner bottom surface of the first contact heat-conducting part is tightly attached to the outer top surface of the second contact heat-conducting part, and the heating FPC is arranged around the periphery of the heat-conducting cup;

the inner bottom surface of the heat insulation cup is convexly provided with a supporting convex column and an installing convex column upwards, the bottom end of the heat conduction cup is limited at the top end of the supporting convex column, the top end of the installing convex column horizontally extends outwards to form a first annular positioning part, the second contact heat conduction part is provided with a one-way installing valve, the heat conduction cup is arranged in the heat insulation cup from top to bottom, the installing convex column is inserted into the one-way installing valve, and the top end of the one-way installing valve is abutted against the lower end of the first annular positioning part;

the one-way installation valve comprises a first conical body with a large lower part and a small upper part, and the first conical body is integrally connected with the second contact heat-conducting part; the periphery of the mounting convex column is provided with an air hole, the heat insulation cup is provided with a first air inlet, and the air hole is respectively communicated with the first air convection gap and the first air inlet.

2. The wrap-around heating and insulating device according to claim 1, wherein: a second silica gel positioning sleeve is further arranged in the heat insulation cup and sleeved on the periphery of the heating FPC so that the heating FPC is clamped between the heat conduction cup and the second silica gel positioning sleeve; and a third air convection gap is kept between the inner side surfaces of the second silica gel positioning sleeve and the heat insulation cup and communicated with the first air convection gap, and air enters the smoke containing main cavity body through the first air inlet, the third air convection gap, the first air convection gap and the air flow radiation heating through hole in sequence.

3. The wrap-around heating and insulating device according to claim 1, wherein: the upper end of the heat conducting cup integrally extends upwards in an outward inclined mode to form an annular inclined edge.

4. The wrap-around heating and insulating device according to claim 1, wherein: the heating FPC is curled to form a cylinder shape, a second inserting end is integrally formed by extending the lower end of the heating FPC downwards, a second inserting hole is formed in the heat insulation cup, the heating FPC is installed in the heat insulation cup from top to bottom, and the second inserting end is inserted into the second inserting hole downwards and extends out of the heat insulation cup.

5. The utility model provides a surround energy-conserving electron cigarette of heating heat preservation formula which characterized in that: comprises a cigarette holder module and a battery rod module; the cigarette holder module comprises a first shell and a surrounding type heating and heat preserving device arranged in the first shell, wherein the surrounding type heating and heat preserving device is the surrounding type heating and heat preserving device according to any one of the claims 1 to 4; the battery pole module comprises a second shell and a power supply which is arranged in the second shell and used for supplying power; the heating FPC is electrically connected with a power supply;

the first shell is detachably connected with the second shell, and the power supply and the surrounding type heating and heat-preserving device can be selectively powered on or off in a contact manner;

one of the first shell and the second shell is provided with a first elastic bulge, the other shell is provided with a first groove, the first shell and the second shell are assembled, and the first elastic bulge is matched in the first groove; the first elastic bulge is a charging elastic thimble and is electrically connected to a power supply, the first groove is a conductive groove, and the first elastic bulge is electrically connected to the conductive groove.