CN109156862B - Air heating tobacco flue-curing machine with improved heating performance - Google Patents
Air heating tobacco flue-curing machine with improved heating performance Download PDFInfo
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- CN109156862B CN109156862B CN201811178317.9A CN201811178317A CN109156862B CN 109156862 B CN109156862 B CN 109156862B CN 201811178317 A CN201811178317 A CN 201811178317A CN 109156862 B CN109156862 B CN 109156862B
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
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- Baking, Grill, Roasting (AREA)
Abstract
The invention relates to an air heating tobacco flue-curing machine with improved heating performance, which comprises a shell and a heating and heat-preserving device; the heating and heat-preserving device is arranged in the mounting cavity of the shell; the heating and heat preserving device comprises a heat insulating cup, a smoke containing cup and a heating piece; the heating element is arranged below the contact heat conduction part; an air convection gap is kept between the outer side surface of the smoke containing cup and the inner side surface of the heat insulating cup; the side wall of the smoke-containing main cavity is provided with an air flow radiation heating through hole, a first air inlet of the shell is communicated with the air convection gap, and air enters the smoke-containing main cavity through the first air inlet, the heating piece, the air convection gap and the air flow radiation heating through hole; therefore, the heat generated by the heating element is transferred to the tobacco body in a mode of combining thermal contact conduction at the bottom and heat lateral air convection radiation, the heating area of the tobacco body and the heating efficiency of the tobacco body are improved, the heating is uniform, the tobacco body is heated in all directions, the using taste of a user is improved, the tobacco shreds are baked completely, and the waste of the tobacco shreds is avoided.
Description
Technical Field
The invention relates to the field of tobacco curing machines, in particular to an air heating tobacco curing machine with improved heating performance.
Background
The existing flue-cured tobacco machine has a single implementation mode, or the heat energy generated by heating components is heated from outside to inside and is directly transferred to the heat conduction cup and then transferred to the solid fuming material to heat the solid fuming material; or the heating components are directly inserted into the fuming material from inside to outside, and the generated heat energy is directly transferred to the solid fuming material to heat the solid fuming material by baking. The two modes have common defects: the temperature of the inner part and the outer part of the baked heating substance is uneven, the heating area is small, the heating efficiency is low, and the use feeling of a user is affected. The tobacco shreds are difficult to completely bake in the internal heating mode, so that the tobacco shreds are easily wasted.
In addition, the existing tobacco flue-curing machine has the problem of heat loss generally, so that more energy is consumed. In addition, the existing heat conduction cup is fixedly connected with a smoking set, so that the disassembly is inconvenient, and the cleaning of the baked tobacco residue is not facilitated.
Accordingly, in the present patent application, the applicant has studied an air heating tobacco flue-curing machine with improved heating performance to solve the above problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention mainly aims to provide the air heating tobacco flue-curing machine with improved heating performance, which enables heat generated by a heating element to be transmitted to a tobacco body in a mode of combining thermal contact conduction at the bottom and heat lateral air convection radiation, improves the heating area of the tobacco body and the heating efficiency of the tobacco body, is uniformly heated, improves the using taste of a user, realizes omnibearing heating of the tobacco body, completely toasts tobacco shreds and avoids wasting the tobacco shreds.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an air heating tobacco flue-curing machine with improved heating performance comprises a shell and a heating and heat-preserving device arranged on the shell; the shell is provided with a mounting cavity and a first air inlet, and the heating and heat-preserving device is arranged in the mounting cavity;
the heating and heat preserving device comprises a heat insulating cup, a smoke containing cup and a heating piece, wherein the smoke containing cup is arranged in the heat insulating cup; the cigarette containing cup is provided with a cigarette containing main cavity and a contact heat conducting part connected to the bottom of the cigarette containing main cavity, and the upper surface of the contact heat conducting part is arranged towards the inside of the cigarette containing main cavity; the heating element is arranged below the contact heat conduction part; an air convection gap is kept between the outer side surface of the smoke containing cup and the inner side surface of the heat insulating cup; the side wall of the main smoke containing cavity is provided with an air flow radiation heating through hole, the first air inlet is communicated with the air convection gap, and air sequentially enters the inside of the main smoke containing cavity through the first air inlet, the heating piece, the air convection gap and the air flow radiation heating through hole.
As a preferred scheme, the main smoke containing cavity is connected with the contact heat conducting part.
As a preferable scheme, the upper surface of the contact heat conduction part is convexly provided with a bulge part, a convection cavity is formed above the contact heat conduction part corresponding to the periphery of the bulge part, air enters the interior of the smoke containing main cavity through the airflow radiation heating through hole, then enters the convection cavity downwards, finally enters the interior of the smoke containing main cavity upwards, and the airflow radiation heating through hole is positioned at the upper side of the convection cavity.
As a preferable scheme, the cigarette containing cup can be vertically arranged in the heat insulation cup in a taking and placing mode, the top end of the cigarette containing cup is in sealing connection with the heat insulation cup, and the upper end of the air convection gap is sealed.
As a preferable scheme, the smoke containing cup is connected with an extraction part which is convenient for taking the smoke containing cup out of the heat insulating cup, an annular positioning part is formed by extending the upper end periphery of the extraction part horizontally outwards, the lower section part of the extraction part extends into the heat insulating cup, and the annular positioning part extends out of the upper end of the heat insulating cup; the extraction part is provided with a first cigarette holding auxiliary cavity penetrating through the upper end face and the lower end face, a limiting step part is formed on the inner wall of the first cigarette holding auxiliary cavity, and the upper end face of the cigarette holding main cavity is limited on the lower end face of the limiting step part;
the annular positioning part is sleeved with a sealing gasket, the sealing gasket is provided with a second cigarette containing auxiliary cavity, an annular sealing convex edge and an annular positioning groove are formed in the inner wall of the second cigarette containing auxiliary cavity, the annular sealing convex edge is positioned above the annular positioning groove, the inner diameter of the annular sealing convex edge is smaller than the inner diameter of the second cigarette containing auxiliary cavity, and the annular positioning part is adapted to the annular positioning groove; the lower end of the sealing gasket is abutted against the upper end of the heat insulation cup.
As a preferable scheme, the heat insulation cup is provided with an inner side wall and an outer side wall connected with the inner side wall, a heat insulation cavity is formed between the outer side wall and the inner side wall, the heat insulation cavity is arranged around the periphery of the cigarette containing cup, and heat insulation materials are filled in the heat insulation cavity, or heat insulation coatings are coated on the inner wall and the outer wall of the heat insulation cavity; the lower end of the heat insulation cavity is provided with an annular opening, and an annular gasket is arranged at the annular opening.
As a preferable scheme, a one-way air inlet valve is arranged below the heating piece, and outside air sequentially passes through the first air inlet and the one-way air inlet valve and penetrates through the air convection gap.
As a preferred scheme, the one-way air inlet valve comprises a conical body with a large lower part and a small upper part and an installation flanging integrally connected to the periphery of the bottom end of the conical body, the lower end of the heat insulation cup is pressed on the installation flanging in a sealing manner, and the top end of the conical body is provided with one-way air holes.
As a preferable scheme, the upper end of the heat insulation cup is provided with a toggle switch, the toggle switch is provided with a toggle convex part, a shielding part and a cigarette body abdication cavity, the toggle convex part is arranged at the upper end of the toggle switch, the shielding part is provided with a smoking through hole, and the cigarette body abdication cavity penetrates through the upper end face and the lower end face of the toggle switch;
in the first use state, the tobacco body abdicating cavity and the tobacco accommodating main cavity are positioned on the same axis so as to facilitate the placement of the tobacco body;
under the second state of use, stir the convex part and stir to opposite side, shelter from the portion and be located and hold cigarette main cavity body directly over and shelter from the portion and cover in the upper end that holds cigarette main cavity body to and smoking through-hole intercommunication holds cigarette main cavity body.
As a preferable scheme, the upper cover is installed to the upper end of shell, have upper cover installation cavity in the upper cover, be equipped with in the upper cover installation cavity and install the magnetic part, but be equipped with magnetism in the aforesaid shell and inhale the metal part, but the upper cover open-close type is connected in the shell, but magnetism inhale the metal part and inhale the location mutually with magnetism, be equipped with the main control circuit board in the shell, the shell is provided with the hall sensor that is used for responding to magnetism spare position, hall sensor electricity is connected in the main control circuit board.
Compared with the prior art, the invention has obvious advantages and beneficial effects, in particular:
1. through the contact heat conduction part, the air convection gap and the airflow radiation heating through hole, heat generated by the heating element can be transmitted to the tobacco body in a mode of combining bottom thermal contact conduction and heat lateral air convection radiation, so that the heating area of the tobacco body and the heating efficiency of the tobacco body are improved, the heating is uniform, the using taste of a user is improved, the tobacco body is comprehensively heated, the tobacco shreds are completely baked, and the waste of the tobacco shreds is avoided;
2. the heat is not lost upwards by combining the bottom heat conduction design and the top seal (under the working state), the heat is well stored in the flue-cured tobacco machine, the heat loss is avoided, the use efficiency of the electric energy is greatly improved, and further, the hot air can not flow downwards through the arrangement of the one-way air inlet valve, so that the heat is prevented from being lost downwards on one hand, the heat is prevented from being transferred to the main control circuit board on the other hand, and the service life of the flue-cured tobacco machine is prolonged;
3. the smoke containing cup is connected with the heat insulating cup, so that the use is more convenient, the smoke slag is convenient to clean, and the scattered smoke slag and smoke oil generally stay on the contact heat conducting cup (for example, a convection cavity at the periphery of the protruding part) and cannot fall down to the heating element;
4. different use states can be switched through the toggle switch, the device is applicable to different fuming materials, and the practicability is good;
5. the upper cover and the shell are connected by the matching of the magnetically attractable metal piece and the magnetic piece, so that the connection and positioning between the upper cover and the shell are more accurate and have better reliability, and particularly, the heating can be started only after the upper cover is connected with the shell through the detection feedback of the Hall sensor, the safety is better, and the safety accident is avoided;
6. the whole structural design is ingenious and reasonable, the installation and the positioning between each part are stable, the reliability and the stability of the tobacco flue-curing machine during operation are guaranteed, and the service life of the tobacco flue-curing machine is prolonged.
In order to more clearly illustrate the structural features and efficacy of the present invention, a detailed description thereof will be given below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic view of a three-dimensional assembly structure according to an embodiment of the present invention;
FIG. 2 is a first exploded view of an embodiment of the present invention;
FIG. 3 is a schematic view of a second split construction (including annular gasket and one-way intake valve) of an embodiment of the present invention;
FIG. 4 is a first cross-sectional schematic view of an embodiment of the present invention (the smoke body is not shown);
FIG. 5 is an enlarged schematic view of the structure of FIG. 4 at A;
FIG. 6 is a third exploded view of an embodiment of the present invention (mainly showing the top cover, toggle switch and magnetic element);
FIG. 7 is a schematic diagram showing an exploded structure of a heating and insulating device according to an embodiment of the present invention;
FIG. 8 is a second cross-sectional schematic view of an embodiment of the invention (showing a smoke body);
FIG. 9 is an enlarged schematic view of the structure at B in FIG. 8 (showing the main flow direction of heat);
FIG. 10 is an exploded view of a heating and insulating apparatus (not shown) according to another embodiment of the present invention;
fig. 11 is an enlarged partial cross-sectional view of another embodiment of the present invention.
Reference numerals illustrate:
10. housing 101, installation cavity
102. First air inlet 103, rechargeable battery
104. Main control circuit board 105 and function keys
11. Front shell 12, rear shell
20. Heating and heat preserving device 21 and heat insulating cup
211. Fastener 212, lower end air inlet through hole
213. Insulation 214, lower extension
215. Thermal chamber 216, thermal barrier coating
221. Main cavity 222 and cylinder for holding smoke
223. Second inner cavity 224, air flow radiation heating through hole
225. Cavity 226, contact heat conduction part
2261. Convection chamber 227, annular section
228. Boss 23, heat generating member
231. Elastic connection end 24, air convection gap
25. One-way air inlet valve 251, mounting flange
252. Lower end extension mounting cavity 253, second air inlet
254. Conical body 2541 and one-way ventilation holes
26. Extraction part 261, first cigarette holding auxiliary cavity
262. Limiting step 263 and annular positioning part
27. Internal forced air guide needle tube 271 and puncturing part
272. Air guide cavity 273 and air guide heating hole
28. Sealing gasket 281, second cigarette holding auxiliary cavity
282. Annular sealing convex edge 283 and annular positioning groove
30. Cigarette body
40. Upper cover 401 and cigarette body placing opening
402. Upper cover installation cavity 41 and toggle switch
411. Toggle protrusion 412 and blocking portion
413. Cigarette body abdication cavity 414 and cigarette suction through hole
51. Magnetically attractable metal piece 511 and heat insulation cup mounting hole
52. Hall sensor 53, magnetic member
54. Annular gasket 541, clamping groove
542. Air flow through hole 543, elastic connection end mounting hole
55. Tinfoil paper.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
As shown in fig. 1 to 11, an air heating tobacco flue-curing machine with improved heating performance comprises a housing 10 and a heating and heat preserving device 20 arranged on the housing 10, wherein the housing 10 comprises a front housing 11 and a rear housing 12, the front housing 11 and the rear housing 12 are configured into the following mounting cavities 101 in a surrounding manner, and the mounting cavities comprise:
the left and right sides of the housing 10 are connected with left and right side strips by means of a buckle 211. The shell 10 is provided with a mounting cavity 101 and a first air inlet 102, and the heating and heat preservation device 20 is arranged in the mounting cavity 101. The battery is installed in the installation cavity 101 of the housing 10, and in the first embodiment and the second embodiment, the battery is a rechargeable battery 103, and the first air inlet 102 is disposed at a charging interface (not shown in the drawing), and the charging interface is electrically connected to the rechargeable battery 103. Here, the charging interface is provided at the bottom of the housing 10, and the charging interface is skillfully utilized as the first air inlet 102.
The heating and heat preserving device 20 comprises a heat insulating cup 21, a smoke containing cup arranged in the heat insulating cup 21 and a heating piece 23, wherein the heating piece 23 is designed into a sheet shape, the heating piece 23 is a product with low specific heat and small volume, and the waste heat of the heating and heat preserving device is little. For example, the heat generating member 23 may be a ceramic member or the like, but is not limited to the ceramic member. The heat generating element 23 is directly contacted with the contact heat conducting part 226 for conducting heat, and the upper surface of the contact heat conducting part 226 directly conducts heat to the smoke body 30, so that the heat tends to be conducted upwards.
The smoke containing cup is provided with a smoke containing main cavity 221 and a contact heat conducting part 226 connected to the bottom of the smoke containing main cavity 221, wherein the upper surface of the contact heat conducting part 226 is arranged towards the inside of the smoke containing main cavity 221; the heating element 23 is arranged below the contact heat conduction part 226; an air convection gap 24 is kept between the outer side surface of the cigarette containing cup and the inner side surface of the heat insulation cup 21; the side wall of the main smoke-containing cavity 221 is provided with an air flow radiation heating through hole 224, the first air inlet 102 is communicated with the air convection gap 24, and air sequentially enters the main smoke-containing cavity 221 through the first air inlet 102, the heating element 23, the air convection gap 24 and the air flow radiation heating through hole 224. In order to radiate heat upwards, a tinfoil 55 (or aluminum foil) is disposed in the heat insulation cup 21, a lower air inlet through hole 212 is formed in the lower end of the heat insulation cup 21, the first air inlet 102 is communicated with the air convection gap 24 through the lower air inlet through hole 212, the tinfoil 55 is disposed at a position corresponding to the lower air inlet through hole 212, and the heating element 23, the air convection gap 24 and the smoke receiving cup are all disposed above the tinfoil 55.
The main smoke-containing cavity 221 is connected to the contact heat-conducting portion 226 in a split manner, in this embodiment, an outer periphery of the contact heat-conducting portion 226 integrally extends upwards to form an annular portion 227, the annular portion 227 is connected to a bottom end of the main smoke-containing cavity 221, and preferably, the annular portion 227 is connected to an inner side of the bottom end of the main smoke-containing cavity 221. The smoke-accommodating main cavity 221 and the contact heat-conducting portion 226 are separately disposed, and may be made of different materials, for example, a material having excellent heat-conducting property may be used for the contact heat-conducting portion 226, so that the cost may be controlled. The material (heat conduction coefficient) and thickness (heat conduction area) of the contact heat conduction part 226 can be selected so that the heat conduction speed and the usual smoking speed are consistent, a part of smoking is completed, a part of smoking is then completed, and finally the whole process does not leak the smoke body 30 to be baked.
The upper surface of the contact heat conducting portion 226 is provided with a protruding portion 228, a convection cavity 2261 is formed above the contact heat conducting portion 226 corresponding to the periphery of the protruding portion 228, air enters the smoke-containing main cavity 221 through the air flow radiation heating through hole 224, then enters the convection cavity 2261 downwards, finally enters the smoke-containing main cavity 221 upwards, and the air flow radiation heating through hole 224 is located at the upper side of the convection cavity 2261. The protruding portion 228 is used for supporting the cigarette body 30, and is beneficial to ventilation and prevents air from being blocked.
The bottom of the contact heat conducting portion 226 is concavely provided with a concave cavity 225 corresponding to the lower portion of the protruding portion 228, hot air enters the interior of the cigarette body 30 from the concave cavity 225 through the bottom end of the cigarette body 30, and typically, the heat generating element 23 may use a spring (or other structure) provided at the lower end to keep the heat generating element 23 in close contact with the contact heat conducting portion 226, so that heat conduction is faster. Naturally, if the arrangement is designed to reduce the pitch, the heat conduction effect can be improved. The heating element 23 is arranged below the bottom of the contact heat conduction part 226, and the heating element 23 is arranged at a distance from the contact heat conduction part 226. The heat generating element 23 generates heat upward toward the air convection gap 24 and the cavity 225. By the arrangement of the concave cavity 225, heat generated by the heating element 23 can be collected at one place, so that the efficiency of improving the temperature in the heat insulation cup 21 is improved, and the heating efficiency of the smoke body 30 is further improved; in addition, the protruding portion 228 is in contact with the front end of the smoke body 30, and the heat conductive performance of the contact heat conductive portion 226 is improved.
In this embodiment, the top of the protruding portion 228 is provided with an air guide needle tube mounting hole penetrating through the main smoke-accommodating cavity 221, the air guide needle tube mounting hole is provided with an internal forced air guide needle tube 27, here, the top of the protruding portion 228 is provided with a cylinder portion 222 protruding from the periphery of the air guide needle tube mounting hole, and the internal forced air guide needle tube 27 extends into the cylinder portion 222. The inner forced air guide needle tube 27 is provided with an air guide cavity 272 communicated with the air convection gap 24, the air guide cavity 272 extends from bottom to top, a plurality of air guide heating holes 273 penetrating through the air guide cavity 272 and the main smoke containing cavity 221 are formed in the side wall of the inner forced air guide needle tube 27, and hot air generated by the heating piece 23 sequentially passes through the cavity 225, the air guide cavity 272 and the air guide heating holes 273 and enters the main smoke containing cavity 221. The air guide heating holes 273 are located above the protrusions 228.
The top end of the inner forced air guide needle tube 27 is provided with a penetrating part 271 which is convenient to penetrate into the cigarette body 30; the tip of the inner forced air guide needle tube 27 is a sealed end, and the penetrating portion 271 is protruded upward from the tip of the inner forced air guide needle tube 27, and the penetrating portion 271 is tapered from bottom to top.
The cigarette containing cup can be vertically arranged in the heat insulation cup 21, the top end of the cigarette containing cup is in sealing connection with the heat insulation cup 21, and the upper end of the air convection gap 24 is sealed. The cigarette containing cup is connected with an extraction part 26 which is convenient for taking the cigarette containing cup out of the heat insulation cup 21, an annular positioning part 263 is formed at the upper end periphery of the extraction part 26 horizontally outwards, the lower section part of the extraction part 26 stretches into the heat insulation cup 21, and the annular positioning part 263 stretches out of the upper end of the heat insulation cup 21; the extraction portion 26 has a first smoke-containing auxiliary cavity 261 penetrating the upper and lower end surfaces, a limiting step portion 262 is formed on the inner wall of the first smoke-containing auxiliary cavity 261, and the upper end surface of the smoke-containing main cavity 221 is limited on the lower end surface of the limiting step portion 262.
The annular positioning portion 263 is sleeved with a sealing gasket 28, the sealing gasket 28 is provided with a second cigarette accommodating auxiliary cavity 281, an annular sealing convex edge 282 and an annular positioning groove 283 are formed on the inner wall of the second cigarette accommodating auxiliary cavity 281, the annular sealing convex edge 282 is located above the annular positioning groove 283, the inner diameter of the annular sealing convex edge 282 is smaller than that of the second cigarette accommodating auxiliary cavity 281, after the cigarette body 30 is inserted, the annular sealing convex edge 282 is used for sealing air, and the inner diameter surface of the annular sealing convex edge 282 is in interference fit with the outer side surface of the cigarette body 30. The annular positioning portion 263 is fitted into the annular positioning groove 283; the inner diameter of the annular sealing collar 282 is less than the outer diameter of the smoke body 30; through annular seal chimb 282, install the cigarette body behind second holds cigarette auxiliary chamber 281, effectively avoid the steam in the heat-proof cup 21 to flow outwards to escape, not take away the heat, improve the leakproofness, guarantee that the heat can not run off, play the effect of saving energy. The lower end of the sealing gasket 28 abuts against the upper end of the insulating cup 21.
Between 300 degrees celsius and 350 degrees celsius, the soot body 30 will not burn, no carbon monoxide and carbon dioxide are produced, and the hazard limits are reduced. After the body 30 is drawn (or smelled), the body 30 is still relatively intact, but is a black residue. Therefore, when the fume is required, the sealing gasket 28 is only required to be taken out.
The heat insulating cup 21 has an upper opening, and a smoke containing cup is usually placed inside the heat insulating cup 21 through the upper opening. The heat insulation cup 21 has an inner side wall and an outer side wall connected to the inner side wall, a heat insulation cavity 215 is formed between the outer side wall and the inner side wall, the heat insulation cavity 215 is arranged around the periphery of the first inner cavity 211, the heat insulation cavity 215 is filled with heat insulation materials, or the inner wall and the outer wall of the heat insulation cavity 215 are coated with heat insulation coating 216, of course, the inner side wall and/or the outer side wall of the heat insulation cup 21 can be coated with the heat insulation coating 216 for better heat insulation effect; the lower end of the heat insulation cavity 215 is provided with an annular opening, and an annular gasket 54 is arranged at the annular opening.
A unidirectional air inlet valve 25 is arranged below the heating element 23, and outside air sequentially passes through the first air inlet 102 and the unidirectional air inlet valve 25 and penetrates through the air convection gap 24; the aforementioned tinfoil 55 is located between the heat generating member 23 and the one-way intake valve 25.
The unidirectional air inlet valve comprises a conical body 254 with a large lower part and a small upper part and a mounting flange 251 integrally connected to the periphery of the bottom end of the conical body 254, the lower end of the heat insulation cup 21 is pressed on the mounting flange 251 in a sealing manner, and unidirectional air holes 2541 are formed in the top end of the conical body 254.
In this embodiment, the mounting flange is disposed below the annular gasket 54, the lower end of the heat insulation cup 21 is connected with the annular gasket 54, and the upper end surface of the annular gasket 54 shields the annular opening, the lower end surface of the annular gasket 54 is attached to the mounting flange 251, the upper end of the unidirectional air inlet valve 25 is concavely formed with a lower end extension portion mounting cavity 252, the lower section of the lower end extension portion 214 extends into the lower end extension portion mounting cavity 252, and the lower end of the lower end extension portion 214 abuts against the bottom wall of the lower end extension portion mounting cavity 252;
the lower end of the unidirectional air inlet valve 25 is concavely provided with a second air inlet 253, and the second air inlet is respectively communicated with the first air inlet 102 and the lower end air inlet through hole 212. The inner wall of the second air inlet 253 integrally extends to form the conical body 254 to ensure that the hot air generated by the heat generating element 23 does not escape downwards from the second air inlet 253.
Preferably, the cone-shaped body is formed by splicing four pieces of silica gel (or soft gel) blocks obliquely upwards, the lower end of each silica gel block is integrally connected to the inner wall of the second air inlet 253 in an arc shape, and the top ends of the four silica gel blocks are respectively unfolded to form the one-way air holes 2541. When external air is introduced from the lower end of the unidirectional air inlet valve 25, the top ends of the four silica gel pieces are respectively unfolded outwards to form the unidirectional air holes 2541, so that the air from the first air inlet 102 can enter the air convection gap 24 from the unidirectional air holes 2541; when the hot air in the heat insulation cup 21 flows downwards, the top ends of the four silica gel blocks are all inwards closed to be extruded to form a sealing structure, so that the hot air is prevented from escaping downwards from the one-way air inlet valve 25, and air convection is also prevented. The number of silica gel blocks is not limited to four, and may be other, and is not limited herein.
In another embodiment, the bottom end of the heat insulation cup 21 is convexly provided with a buckle 211, the annular gasket 54 is provided with a clamping groove 541 and an air flow hole 542, the buckle 211 is adapted to the clamping groove 541, and the air flow hole 542 penetrates through the mounting cavity 101 and the lower air inlet hole 212. Here, the inner wall of the airflow through hole 542 may form the aforementioned one-way intake valve 25, which is not limited herein. It should be noted that, in another embodiment, two elastic connection ends 231 are provided at the lower end of the heating element 23, two elastic connection end mounting holes 543 are provided on the lower end air inlet through hole 212, each elastic connection end mounting hole 543 is opposite to the lower side of the lower end air inlet through hole 212, and the elastic connection ends 231 of the heating element 23 sequentially pass through the corresponding lower end air inlet through hole 212 and the elastic connection end mounting hole 543 and then are connected with the main control circuit board 104 described below, where the elastic connection ends 231 of the heating element 23 pass through the lower end air inlet through hole 212 and then keep a certain gap with the inner wall of the lower end air inlet through hole 212.
The upper end of the heat insulation cup is provided with a toggle switch, the toggle switch 41 is provided with a toggle convex part 411, a shielding part 412 and a smoke body abdication cavity 413, the toggle convex part 411 is arranged at the upper end of the toggle switch 41, the shielding part 412 is positioned at the front side and the rear side of the toggle switch 41, the shielding part 412 is provided with a smoke suction through hole 414, the smoke body abdication cavity 413 penetrates through the upper end surface and the lower end surface of the toggle switch 41,
in the first use state, the tobacco body abdicating cavity 413 and the tobacco containing main cavity are positioned on the same axis so as to be convenient for placing the tobacco body 30; in the second use state, the poking protrusion 411 is poked to the opposite side (here, the front side), the shielding part 412 is located right above the main smoke-containing cavity, the shielding part 412 covers the upper end of the main smoke-containing cavity, and the smoking through hole 414 is communicated with the main smoke-containing cavity; the user may draw smoke through the smoke vent 414. It should be noted that the first use state is to place the cigarette body; the second use state is to place a smoking material in a crushed or the like.
An upper cover 40 is mounted at the upper end of the housing 10, a cigarette body placing opening 401 is formed at the upper end of the upper cover 40, and the poking convex part 411 is arranged at the rear side of the upper end of the poking switch 41 and extends out of the cigarette body placing opening 401; an upper cover mounting cavity 402 is formed in the upper cover 40, the cigarette body placing opening 401 is communicated with the upper cover mounting cavity 402, and the toggle switch 41 is arranged in the upper cover mounting cavity 402; the upper cover mounting cavity 402 is internally provided with a magnetic part 53, the shell 10 is internally provided with a magnetically attractable metal part 51 and a main control circuit board 104, the magnetically attractable metal part 51 is provided with a heat insulation cup mounting hole 511, the heat insulation cup 21 is arranged in the heat insulation cup mounting hole 511 and extends out of the magnetically attractable metal part 51, the upper cover 40 is connected to the shell 10 in an openable manner, and the magnetically attractable metal part 51 and the magnetic part 53 are magnetically attracted and positioned; in the second embodiment, a hall sensor 52 for sensing a magnetic element is disposed below the magnetically attractable metal element 51, and the hall sensor 52 is electrically connected to the main control circuit board 104.
The main control circuit board 104 is electrically connected to a temperature sensor (not shown) for detecting the temperature of the heat generating component 23. When smoking, cold air entering from the first air inlet 102 passes through the heating element 23, hot air flows to the periphery of the tobacco section of the tobacco body 30 through the air flow radiation heating through hole 224, the probe of the temperature sensor detects the temperature drop and then sends a signal to the main control circuit board 104, and the main control circuit board 104 receives the signal and then controls the heating element 23 to work so as to rapidly supplement heat. When not smoking, the heat of the heating element 23 is transferred to the lower end of the contact heat conduction part 226 through heat conduction, the contact heat conduction part is made of a material with good heat conduction, and then the heat is transferred from the internal forced air guide needle tube 27 to the inside of the tobacco section of the tobacco body 30.
The main control circuit board 104 is also electrically connected with a plurality of function keys 105, and the function keys 105 are electrically connected with the main control circuit board 104. The casing 10 is provided with a function key mounting hole, and the function key 105 is mounted in the function key mounting hole. The function key 105 includes a key switch, and in this embodiment, the key switch is configured in an loving shape, not limited to the above shape, but may be configured in other shapes. When the magnetically attractable metal 5151 of the upper cover 40 is matched with the magnetic member 5353, the hall sensor 52 sends a signal to the main control circuit board 104, and after the cigarette body 30 is placed in the cigarette body accommodating cavity, the key switch is pressed, and the heating member starts to operate. After 3 to 4 seconds, the temperature of the first inner cavity 211 reaches a certain temperature. When the temperature sensor detects the temperature of the smoke, for example, 350 ℃, the smoke can be drawn by reminding a user in a vibration mode, an alarm sound or a flashing effect and the like. Of course, the device may also have a reminding function after smoking, and the reminding mode may be various modes such as vibration and sound, and is not limited herein.
The design key point of the invention is as follows:
1. through the contact heat conduction part, the air convection gap and the airflow radiation heating through hole, heat generated by the heating element can be transmitted to the tobacco body in a mode of combining bottom thermal contact conduction and heat lateral air convection radiation, so that the heating area of the tobacco body and the heating efficiency of the tobacco body are improved, the heating is uniform, the using taste of a user is improved, the tobacco body is comprehensively heated, the tobacco shreds are completely baked, and the waste of the tobacco shreds is avoided;
2. the heat is not lost upwards by combining the bottom heat conduction design and the top seal (under the working state), the heat is well stored in the flue-cured tobacco machine, the heat loss is avoided, the use efficiency of the electric energy is greatly improved, and further, the hot air can not flow downwards through the arrangement of the one-way air inlet valve, so that the heat is prevented from being lost downwards on one hand, the heat is prevented from being transferred to the main control circuit board on the other hand, and the service life of the flue-cured tobacco machine is prolonged;
3. the smoke containing cup is connected with the heat insulating cup, so that the use is more convenient, the smoke slag is convenient to clean, and the scattered smoke slag and smoke oil generally stay on the contact heat conducting cup (for example, a convection cavity at the periphery of the protruding part) and cannot fall down to the heating element;
4. different use states can be switched through the toggle switch, the device is applicable to different fuming materials, and the practicability is good;
5. the upper cover and the shell are connected by the matching of the magnetically attractable metal piece and the magnetic piece, so that the connection and positioning between the upper cover and the shell are more accurate and have better reliability, and particularly, the heating can be started only after the upper cover is connected with the shell through the detection feedback of the Hall sensor, the safety is better, and the safety accident is avoided;
6. the whole structural design is ingenious and reasonable, the installation and the positioning between each part are stable, the reliability and the stability of the tobacco flue-curing machine during operation are guaranteed, and the service life of the tobacco flue-curing machine is prolonged.
The foregoing description is only of the preferred embodiments 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 embodiments according to the technical principles of the present invention still fall within the scope of the technical solutions of the present invention.
Claims (6)
1. An air heating tobacco flue-curing machine of improvement heat performance, its characterized in that: comprises a shell and a heating and heat preserving device arranged on the shell; the shell is provided with a mounting cavity and a first air inlet, and the heating and heat-preserving device is arranged in the mounting cavity;
the heating and heat preserving device comprises a heat insulating cup, a smoke containing cup and a heating piece, wherein the smoke containing cup is arranged in the heat insulating cup; the cigarette containing cup is provided with a cigarette containing main cavity and a contact heat conducting part connected to the bottom of the cigarette containing main cavity, and the upper surface of the contact heat conducting part is arranged towards the inside of the cigarette containing main cavity; the heating element is arranged below the contact heat conduction part; an air convection gap is kept between the outer side surface of the smoke containing cup and the inner side surface of the heat insulating cup; the side wall of the smoke-containing main cavity is provided with an air flow radiation heating through hole, the first air inlet is communicated with the air convection gap, and air sequentially enters the smoke-containing main cavity through the first air inlet, the heating piece, the air convection gap and the air flow radiation heating through hole;
the upper surface of the contact heat conduction part is convexly provided with a bulge part, a convection cavity is formed above the contact heat conduction part and corresponding to the periphery of the bulge part, air enters the interior of the smoke containing main cavity through the air flow radiation heating through hole, then enters the convection cavity downwards, finally enters the interior of the smoke containing main cavity upwards, and the air flow radiation heating through hole is positioned at the upper side of the convection cavity;
a concave cavity is concavely formed at the lower part of the bottom of the contact heat conduction part corresponding to the convex part;
the cigarette containing cup can be vertically arranged in the heat insulating cup, tinfoil paper is arranged in the heat insulating cup, a lower-end air inlet through hole is formed in the lower end of the heat insulating cup, a heating piece, an air convection gap and the cigarette containing cup are arranged at the position, corresponding to the lower-end air inlet through hole, of the tinfoil paper, and are all located above the tinfoil paper;
the top end of the smoke containing cup is connected with the heat insulation cup in a sealing way, and the upper end of the air convection gap is sealed;
the cigarette containing cup is connected with an extraction part which is convenient for taking the cigarette containing cup out of the heat insulation cup, an annular positioning part is formed by extending the upper end periphery of the extraction part horizontally outwards, the lower section part of the extraction part extends into the heat insulation cup, and the annular positioning part extends out of the upper end of the heat insulation cup; the extraction part is provided with a first cigarette holding auxiliary cavity penetrating through the upper end face and the lower end face, a limiting step part is formed on the inner wall of the first cigarette holding auxiliary cavity, and the upper end face of the cigarette holding main cavity is limited on the lower end face of the limiting step part;
the annular positioning part is sleeved with a sealing gasket, the sealing gasket is provided with a second cigarette containing auxiliary cavity, an annular sealing convex edge and an annular positioning groove are formed in the inner wall of the second cigarette containing auxiliary cavity, the annular sealing convex edge is positioned above the annular positioning groove, the inner diameter of the annular sealing convex edge is smaller than the inner diameter of the second cigarette containing auxiliary cavity, and the annular positioning part is adapted to the annular positioning groove; the lower end of the sealing gasket is abutted against the upper end of the heat insulation cup;
the upper end of the heat insulation cup is provided with a toggle switch, the toggle switch is provided with a toggle convex part, a shielding part and a smoke body abdication cavity, the toggle convex part is arranged at the upper end of the toggle switch, the shielding part is provided with a smoking through hole, and the smoke body abdication cavity penetrates through the upper end face and the lower end face of the toggle switch;
in the first use state, the tobacco body abdicating cavity and the tobacco accommodating main cavity are positioned on the same axis so as to facilitate the placement of the tobacco body;
under the second state of use, stir the convex part and stir to opposite side, shelter from the portion and be located and hold cigarette main cavity body directly over and shelter from the portion and cover in the upper end that holds cigarette main cavity body to and smoking through-hole intercommunication holds cigarette main cavity body.
2. The air-heated tobacco flue-curing machine with improved heating performance as recited in claim 1, wherein: the main smoke containing cavity is connected with the contact heat conducting part.
3. The air-heated tobacco flue-curing machine with improved heating performance as recited in claim 1, wherein: the heat insulation cup is provided with an inner side wall and an outer side wall connected with the inner side wall, a heat insulation cavity is formed between the outer side wall and the inner side wall, the heat insulation cavity is arranged around the periphery of the smoke containing cup, and heat insulation materials are filled in the heat insulation cavity, or heat insulation coatings are coated on the inner wall and the outer wall of the heat insulation cavity; the lower end of the heat insulation cavity is provided with an annular opening, and an annular gasket is arranged at the annular opening.
4. The air-heated tobacco flue-curing machine with improved heating performance as recited in claim 1, wherein: the one-way air inlet valve is arranged below the heating piece, and outside air sequentially passes through the first air inlet and the one-way air inlet valve and penetrates through the air convection gap.
5. The air-heated tobacco flue-curing machine with improved heating performance as recited in claim 4, wherein: the one-way air inlet valve comprises a conical body with a large lower part and a small upper part and an installation flanging integrally connected to the periphery of the bottom end of the conical body, the lower end of the heat insulation cup is pressed on the installation flanging in a sealing mode, and the top end of the conical body is provided with one-way air holes.
6. The air-heated tobacco flue-curing machine with improved heating performance as recited in claim 1, wherein: the upper cover is installed to the upper end of shell, have upper cover installation cavity in the upper cover, be equipped with the magnetism spare in the upper cover installation cavity, but be equipped with magnetism in the aforesaid shell and inhale the metalwork, but the upper cover open-close type is connected in the shell, but magnetism inhale the metalwork and inhale the location mutually with magnetism spare, be equipped with the main control circuit board in the shell, the shell is provided with the hall sensor that is used for responding to magnetism spare position, hall sensor electricity is connected in the main control circuit board.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178317.9A CN109156862B (en) | 2018-10-10 | 2018-10-10 | Air heating tobacco flue-curing machine with improved heating performance |
| PCT/CN2019/099900 WO2020073730A1 (en) | 2018-10-10 | 2019-08-09 | Air-heating tobacco roasting machine having improved heating performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178317.9A CN109156862B (en) | 2018-10-10 | 2018-10-10 | Air heating tobacco flue-curing machine with improved heating performance |
Publications (2)
| Publication Number | Publication Date |
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| CN109156862A CN109156862A (en) | 2019-01-08 |
| CN109156862B true CN109156862B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811178317.9A Active CN109156862B (en) | 2018-10-10 | 2018-10-10 | Air heating tobacco flue-curing machine with improved heating performance |
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| Country | Link |
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| CN (1) | CN109156862B (en) |
| WO (1) | WO2020073730A1 (en) |
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| CN106858726B (en) * | 2017-04-20 | 2018-06-19 | 深圳市卓力能电子有限公司 | A kind of burning tobacco electronic cigarette Cooker structure |
| CN109156862B (en) * | 2018-10-10 | 2023-09-15 | 东莞市特拉康电子科技有限公司 | Air heating tobacco flue-curing machine with improved heating performance |
| US11337458B2 (en) * | 2019-05-13 | 2022-05-24 | Tuanfang Liu | Vaporizer having means for pausing vaporizing of cigarette |
| CN110089777B (en) * | 2019-05-27 | 2022-03-04 | 东莞市特拉康电子科技有限公司 | Surrounding heating heat-preservation type energy-saving electronic cigarette and surrounding heating heat-preservation device thereof |
| CN110916237A (en) * | 2019-11-07 | 2020-03-27 | 东莞市特拉康电子科技有限公司 | Intelligent air heating tobacco baking machine |
| CN110810929A (en) * | 2019-11-22 | 2020-02-21 | 惠州市沛格斯科技有限公司 | Electronic smoking set |
| CN110810928A (en) * | 2019-11-22 | 2020-02-21 | 惠州市沛格斯科技有限公司 | Electronic smoking set |
| CN114158777B (en) * | 2022-01-12 | 2024-07-19 | 云南中烟工业有限责任公司 | Device for heating cigarettes by air and application method thereof |
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| CN109156862A (en) | 2019-01-08 |
| WO2020073730A1 (en) | 2020-04-16 |
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