CN109984381A - A kind of low temperature cigarette heater and the low temperature cigarette - Google Patents

Abstract

The invention discloses a heating element for low-temperature smoke and the low-temperature smoke, wherein the heating element for low-temperature smoke comprises a heating body, and the heating body consists of a first heating section corresponding to the air intake section of the tobacco part, and a second heating section corresponding to the middle section of the tobacco part. The second heating section and the third heating section corresponding to the air outlet section of the tobacco part are connected in sequence; along the length direction of the tobacco section, the thermal power of the second heating section to a unit volume of tobacco is P, and the heat of the first heating section to a unit volume of tobacco is P. The power is (3~8)P, and the heat power of the third heating section to the unit volume of tobacco is (1.5~4)P. Aiming at the characteristics of different heat requirements for the smoke generated by the heating of each section of the tobacco part of the cigarette, the invention adopts a segmented design for the thermal power and length of the heating body, the atomization speed is fast, the tobacco part is not easy to be carbonized and scorched, and the smoke taste Good consistency and good user experience.

Description

A heating element for low temperature smoke and the low temperature smoke

technical field

The invention particularly relates to a heating element for low temperature smoke and the low temperature smoke.

Background technique

At present, among various low-temperature cigarettes, the tobacco part of the cigarette is heated by a heating element to generate smoke for users to smoke. In the prior art, along the length direction of the tobacco portion, the heating power of each section of the heating element is the same. Due to the continuous supply of cold air in the intake section of the tobacco section, the heating element corresponding to the intake section of the tobacco section has a part of the heat used to heat the cold air; the section of the heating element corresponding to the middle section of the tobacco section and the air outlet section of the tobacco section is only used for heating Tobacco without heating cold air. Therefore, the phenomenon of long waiting time for smoke or partial carbonization and scorching is prone to occur, the smoke taste is inconsistent, and the user experience is poor.

SUMMARY OF THE INVENTION

In the existing low-temperature smoke, along the length direction of the tobacco part, the heat power of each section of the heating element is the same, which is prone to the phenomenon of long waiting time for smoke or partial carbonization and scorching, inconsistent smoke taste, and poor user experience. The object of the present invention is, in view of the deficiencies of the above-mentioned prior art, to provide a kind of improved heating element for low temperature smoke and the low temperature smoke, the atomization speed is fast, the tobacco part is not easy to be carbonized and scorched, and the consistency of smoke taste is good, User experience is good.

For solving the above-mentioned technical problems, the technical scheme adopted in the present invention is:

A heating element for low-temperature cigarettes, including a heating body, its structural feature is that the heating body is composed of a first heating section corresponding to the air inlet section of the tobacco part, a second heating section corresponding to the middle section of the tobacco part, and a gas outlet section corresponding to the tobacco part. The third heating sections are connected in sequence; along the length direction of the tobacco part, the thermal power of the second heating section to the unit volume of tobacco is P, the thermal power of the first heating section to the unit volume of tobacco is (3~8)P, The thermal power of the three heating sections to the unit volume of tobacco is (1.5~4)P.

With the above structure, since the airflow entering the air intake section of the tobacco part belongs to cold air, the air intake section of the tobacco part needs the first heating section to generate more heat to heat the cigarette, preventing part of the heat from being absorbed by the cold air and affecting the air intake of the tobacco part. The atomization speed of the segment. Since the third heating section is close to the suction nozzle, the main function of the third heating section is to rapidly heat the gas outlet section of the tobacco part to produce smoke, so that the user can inhale the smoke at the initial moment of the electronic cigarette operation. Aiming at the characteristics of different heat requirements for the smoke generated by the heating of each section of the tobacco part of the cigarette, the invention designs the heat power of the heating body in sections. The smoke speed is fast, the tobacco part is not easy to be carbonized and scorched, the smoke taste is consistent, and the user experience is good.

As a preferred way, the heating power of the first heating section to the unit volume of tobacco is (3~4)P, preferably 3P.

As a preferred way, the heat power of the third heating section to the unit volume of tobacco is (2~3)P, preferably 2P.

In a preferred solution, the length of the first heating section is (1/6~1/3) of the length of the heating body, and the length of the second heating section is (3/4~1/3) the length of the heating body 2); preferably, the length of the first heating segment is 1/6 of the length of the heating body, and the length of the second heating segment is 3/4 of the length of the heating body.

In another preferred solution, the length of the first heating section is (1/10~4/3) of the length of the heating body, and the length of the second heating section is (6/10~5) the length of the heating body /10); preferably, the length of the first heating segment is 1/10 of the length of the heating body, and the length of the second heating segment is 6/10 the length of the heating body.

In the above two solutions, the heat of the first heating section is sufficient to heat the air inlet section of the atomized tobacco part to generate smoke and to heat cold air. The rising speed of the energy provided by the second heating section is relatively slow, so the middle section of the tobacco part is heated more evenly, the heat preservation effect is better, and the phenomenon of local overheating and carbonization can be prevented. Since the third heating section is close to the suction nozzle, the main function of the third heating section is to rapidly heat the gas outlet section of the tobacco part to produce smoke, so that the user can inhale the smoke at the initial moment of the electronic cigarette operation. The third heating section is not easy to be too long, so as to avoid local rapid high temperature and charring and carbonization in the exhaust gas section. The third heating section may be slightly longer than the first heating section, so that the amount of smoke atomized is faster and larger.

As a preferred mode, it also includes a heat transfer tube with an inner cavity for placing the tobacco part of the cigarette, the heating body is a spring-like structure wound by heating wires, and the heating body is sleeved outside the heat transfer tube. Corresponding to the thermal power, the winding pitch of the heating wire in the second heating section is a; the winding pitch of the heating wire in the first heating section is (3~8)a, preferably (3~4)a, more preferably 3a ; The winding pitch of the heating wire in the third heating segment is (1.5~4) a, preferably (2~3) a, more preferably 2a.

As another preferred manner, the heating body is a tubular structure formed by connecting a plurality of heating sheets.

Compared with the first structure, the heating body of this structure can be an FPC flexible heating body, which has good flexibility and is easy to assemble.

Further, the surface of the heating body is provided with a thermally conductive insulating base material layer.

In this solution, the heat-conducting insulating base material layer and the successively connected multi-segment heating sheets are packaged into a flexible board, and then the flexible board is rolled into a tubular structure, that is, the heating body is formed. Therefore, the processing technology is simpler, the manufacturing cost is lower, and the thermal coverage rate is better.

Based on the same inventive concept, the present invention also provides a low-temperature cigarette, including a cigarette with a tobacco portion, and the heating body, which is arranged along the length direction of the tobacco portion and heats the tobacco portion to generate smoke.

Further, it also includes a heat transfer tube, the heating body is a spring-like structure made of heating wires, the heating body is sleeved outside the heat transfer tube; the tobacco part is placed in the inner cavity of the heat transfer tube; the bottom of the heat transfer tube A base for carrying the tobacco part is provided, and an air hole connecting the tobacco part and the air inlet channel is arranged on the base.

Further, a first air storage cavity that communicates with the tobacco part and the air hole is arranged between the base and the tobacco part.

With the above structure, the top surface of the base is provided with a concave portion that is not in direct contact with the tobacco portion, which can prevent the smoke flow from being blocked by the bottom of the tobacco portion during smoking, thereby affecting the smoking effect.

Further, it also includes an outer casing, the heating body and the heat transfer tube are fixed in the outer casing through the base, the outer casing is also provided with a battery under the heating body, and the base and the battery are provided with air holes and air intake channels. the second air storage cavity.

With the above structure, the second air storage cavity can not only prevent the air passage from being blocked by the flakes, but also play the role of heat insulation or heat dissipation, preventing the heat from being directly transferred to the battery and affecting the battery life.

Further, the outer sleeve is also provided with a heat insulation mechanism sleeved outside the heating body.

As a preferred mode, the heat insulation mechanism includes a first heat insulation pipe and a second heat insulation pipe in the outer casing, and the first heat insulation pipe is sleeved between the second heat insulation pipe and the heating body.

As a preferred manner, the air intake passage is provided between the first thermal insulation pipe and the second thermal insulation pipe.

Further, a heat insulating cavity is provided between the second heat insulating pipe and the outer sleeve.

The arrangement of the air intake channel and the heat insulation cavity can further reduce the heat transferred to the outer casing, prevent hot hands, and provide a good user experience.

Compared with the prior art, the present invention aims at the different heat requirements of the smoke generated by the heating of each section of the tobacco part of the cigarette. It is not easy to be carbonized and scorched, the smoke taste is consistent, and the user experience is good.

Description of drawings

FIG. 1 is a schematic structural diagram of a first embodiment of a heating element.

FIG. 2 is a schematic structural diagram of the second embodiment of the heating element unfolded from the bus bar.

FIG. 3 is a schematic structural diagram of the third embodiment of the heating element unfolded from the bus bar.

FIG. 4 is a schematic structural diagram of an embodiment of low temperature smoke.

FIG. 5 is a schematic view of the structure of FIG. 4 after the cigarette is taken out.

FIG. 6 is an exploded view of FIG. 4 .

FIG. 7 is a graph showing the relationship between the heating temperature and the heating time of each section of the tobacco part of the present invention.

Wherein, 1 is the cigarette, 101 is the tobacco part, 2 is the heating body, 201 is the first heating section, 202 is the second heating section, 203 is the third heating section, 3 is the heat transfer tube, and 4 is the insulating substrate layer , 5 is the base, 501 is the air hole, 6 is the air inlet channel, 7 is the first air storage cavity, 8 is the outer casing, 9 is the battery, 10 is the second air storage cavity, 11 is the first thermal insulation Pipe, 1101 is an air intake hole, 12 is a second heat insulation pipe, 13 is a heat insulation cavity, 14 is a bracket, 15 is a control panel, 16 is a button, 17 is a spring, and 18 is a bottom cover.

Detailed ways

Heater Embodiment 1

As shown in FIG. 1 , the low-temperature cigarette heating body includes a heating body 2 arranged along the length direction of the tobacco portion 101 of the cigarette 1, and the heating body 2 is composed of a first heating segment 201 corresponding to the air intake section of the tobacco portion 101, The second heating section 202 corresponding to the middle section and the third heating section 203 corresponding to the air outlet section of the tobacco part 101 are connected in sequence;

The heating power of the first heating section 201 to a unit volume of tobacco is (3~8)P, preferably (3~4)P, and more preferably 3P.

The heating power of the third heating section 203 to the unit volume of tobacco is (1.5~4)P, preferably (2~3)P, and more preferably 2P.

The length of the first heating section 201 is (1/6~1/3) of the length of the heating body 2, and the length of the second heating section 202 is (3/4~1/2) the length of the heating body 2; Preferably, the length of the first heating segment 201 is 1/6 of the length of the heating body 2 , and the length of the second heating segment 202 is 3/4 of the length of the heating body 2 .

The heating body also includes a heat transfer tube 3 with an inner cavity for placing the tobacco portion 101 of the cigarette 1. The heating body 2 is a spring-like structure wound by a heating wire, and the heating body 2 is sleeved outside the heat transfer tube 3. .

Corresponding to the thermal power, the winding pitch of the heating wire in the second heating section 202 is a; the winding pitch of the heating wire in the first heating section 201 is (3~8)a, preferably (3~4)a, more preferably is 3a; the winding pitch of the heating wire in the third heating segment 203 is (1.5~4)a, preferably (2~3)a, more preferably 2a.

The second embodiment of the heating element

As shown in FIG. 2 , in the second embodiment, the heating body for low-temperature cigarettes includes a heating body 2 arranged along the length direction of the tobacco part 101 of the cigarette 1 , and the heating body 2 consists of a first heating section corresponding to the air intake section of the tobacco part 101 . 201. The second heating section 202 corresponding to the middle section of the tobacco section 101 and the third heating section 203 corresponding to the gas outlet section of the tobacco section 101 are connected in sequence; The thermal power is P.

The heating power of the first heating section 201 to a unit volume of tobacco is (3~8)P, preferably (3~4)P, and more preferably 3P.

The heating power of the third heating section 203 to the unit volume of tobacco is (1.5~4)P, preferably (2~3)P, and more preferably 2P.

The length of the first heating section 201 is (1/10~4/3) of the length of the heating body 2, and the length of the second heating section 202 is (6/10~5/10) the length of the heating body 2; Preferably, the length of the first heating segment 201 is 1/10 of the length of the heating body 2 , and the length of the second heating segment 202 is 6/10 of the length of the heating body 2 .

The heating body 2 is a tubular structure formed by connecting a plurality of heating pieces. FIG. 2 is a schematic structural diagram of the second embodiment of the heating body unfolded from the bus bar. During assembly, the heating body can be rolled up to form a tubular structure that can accommodate the tobacco portion 101 .

The third embodiment of the heating element

As shown in FIG. 3 , on the basis of the second embodiment, the surface of the heating body is further provided with a thermally conductive insulating base material layer 4 . FIG. 3 is a schematic structural diagram of the third embodiment of the heating element unfolded from the bus bar. During production, the heat-conducting insulating base material layer 4 and the successively connected multi-segment heating sheets are packaged into a flexible board, and then the flexible board is rolled into a tubular structure that can accommodate the tobacco portion 101 , that is, the heating body is formed. When the user replaces the cigarette, the cigarette can be inserted and pulled out more smoothly, and at the same time, the inner wall of the flexible board can be easily cleaned.

Low temperature smoke example

As shown in FIGS. 4 to 6 , the low-temperature cigarette includes a cigarette 1 with a tobacco portion 101 , and also includes the heating body 2 described in the first embodiment. The heating body 2 is arranged along the length direction of the tobacco portion 101 and faces the tobacco portion 101 Heating produces smoke.

The tobacco part 101 is placed in the inner cavity of the heat transfer pipe 3; the bottom of the heat transfer pipe 3 is provided with a base 5 carrying the tobacco part 101, and the base 5 is provided with an air hole 501 connecting the tobacco part 101 and the air inlet channel 6.

A first air storage cavity 7 connecting the tobacco part 101 and the air hole 501 is provided between the base 5 and the tobacco part 101 .

The low-temperature smoke also includes an outer casing 8. The heating body 2 and the heat transfer tube 3 are fixed in the outer casing 8 through the base 5. The outer casing 8 is also provided with a battery 9 located below the heating body 2. The base 5 and the battery 9 There is a second air storage cavity 10 connected with the air hole 501 and the air intake passage 6 therebetween.

The outer sleeve 8 is also provided with a heat insulation mechanism sleeved outside the heating body 2 .

The heat insulation mechanism includes a first heat insulation pipe 11 and a second heat insulation pipe 12 in the outer casing 8 , and the first heat insulation pipe 11 is sleeved between the second heat insulation pipe 12 and the heating body 2 .

The air intake passage 6 is provided between the first thermal insulation pipe 11 and the second thermal insulation pipe 12 .

A heat insulating cavity 13 is provided between the second heat insulating pipe 12 and the outer sleeve 8 .

The top of the first heat insulating pipe 11 is provided with an air intake hole 1101 that communicates with the outside world and the air intake passage 6 . The direction indicated by the arrow in FIG. 5 is the airflow direction.

The outer sleeve 8 is provided with a bracket 14 located between the battery 9 and the heating body 2 . A control panel 15 for controlling whether the heating element works or not is fixed on the bracket 14 , and a button 16 for controlling the on or off of the control panel 15 is provided on the side wall of the outer sleeve 8 . A spring 17 is provided between the button 16 and the control board 15 .

The bottom of the outer sleeve 8 is provided with a bottom cover 18 to seal.

test results

When the length of the first heating segment 201 is 1/6 of the length of the heating body 2, the length of the second heating segment 202 is 3/4 of the length of the heating body 2, and the length of the third heating segment 203 is the length of the heating body 2 1/12, at the same time, when the winding pitch of the heating wire in the second heating section 202 is a, the winding pitch of the heating wire in the first heating section 201 is 3a, and the winding pitch of the heating wire in the third heating section 203 is 2a, this The relationship between the heating temperature and the heating time of each section of the tobacco part 101 in the low-temperature smoke of the invention is shown in FIG. 7 . In Figure 7, , , Respectively represent the relationship curves between the heating temperature and the heating time in the air inlet section of the tobacco part 101 , the middle section of the tobacco part 101 , and the air outlet section of the tobacco part 101 .

It can be seen from Figure 7 that the winding density of each section of heating wire is related to the time required for the temperature to rise. The higher the winding density, the faster the heating rate. When the temperature reaches the preset temperature, the temperature of the section of the low-temperature smoke is maintained within the range of the preset value temperature by means of software control. If the preset value is 250°, the time required for the outlet section of the tobacco part 101 to reach 250° is the shortest, that is, the speed of smoking is the fastest; Part of the heat is taken away, so the temperature reaching the preset value is slower; the middle section of the tobacco part 101 is the slowest, because the second heating section 202 has a low density of winding heating wires and the heating part is longer, so the heating speed is relatively slow. Judging from the length of time it takes for the three periods to reach the preset temperature, the amount of smoke in each time period is just replenished in time, which can prevent users from choking due to inconsistency in the amount of smoke in each puff.

The embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than limiting. Under the inspiration of the present invention, without departing from the scope of protection of the spirit of the present invention and the claims, many forms can be made, which all fall within the protection scope of the present invention.

Claims (16)

1. A low-temperature cigarette heating body, comprising a heating body (2), characterized in that the heating body (2) consists of a first heating section (201) corresponding to the air intake section of the tobacco part (101), 101) The second heating section (202) corresponding to the middle section and the third heating section (203) corresponding to the air outlet section of the tobacco part (101) are connected in sequence; along the length direction of the tobacco part (101), the second heating section ( 202) The thermal power to a unit volume of tobacco is P, the thermal power of the first heating section (201) to a unit volume of tobacco is (3~8)P, and the thermal power of the third heating section (203) to a unit volume of tobacco is ( 1.5~4) P. 2 . The heating element for low-temperature cigarettes according to claim 1 , wherein the heating power of the first heating section ( 201 ) per unit volume of tobacco is (3-4) P, preferably 3 P. 3 . 3. The heating element for low-temperature cigarettes according to claim 1, characterized in that, the heating power of the third heating section (203) per unit volume of tobacco is (2~3)P, preferably 2P. 4. The heating body for low-temperature smoke according to any one of claims 1 to 3, wherein the length of the first heating segment (201) is (1/6~1/6) the length of the heating body (2). 3), the length of the second heating section (202) is (3/4~1/2) of the length of the heating body (2); Preferably, the length of the first heating segment (201) is 1/6 of the length of the heating body (2), and the length of the second heating segment (202) is 3/4 of the length of the heating body (2). 5. The heating body for low-temperature smoke according to any one of claims 1 to 3, wherein the length of the first heating segment (201) is (1/10~4/10) the length of the heating body (2). 3), the length of the second heating section (202) is (6/10~5/10) of the length of the heating body (2); Preferably, the length of the first heating segment (201) is 1/10 of the length of the heating body (2), and the length of the second heating segment (202) is 6/10 the length of the heating body (2). 6. The heating element for low-temperature cigarettes according to any one of claims 1 to 3, characterized in that, further comprising a heat transfer tube (3) having an inner cavity for placing the tobacco part (101) of the cigarette (1), so The heating body (2) is a spring-like structure wound by heating wires, and the heating body (2) is sleeved outside the heat transfer tube (3). 7 . The heating body for low temperature smoke according to claim 1 , wherein the heating body ( 2 ) is a tubular structure formed by connecting a plurality of heating sheets. 8 . 8 . The heating body for low temperature smoke according to claim 7 , wherein a heat-conducting insulating base material layer ( 4 ) is provided on the surface of the heating body ( 2 ). 9 . 9. A low-temperature cigarette, comprising a cigarette (1) having a tobacco portion (101), characterized in that it further comprises the heating body according to any one of claims 1 to 8, wherein the heating body (2) is along the The tobacco part (101) is arranged in the longitudinal direction and heats the tobacco part (101) to generate smoke. 10 . The low-temperature smoke according to claim 9 , further comprising a heat transfer tube ( 3 ), the heating body ( 2 ) is a spring-like structure wound by a heating wire, and the heating body ( 2 ) The tobacco part (101) is placed in the inner cavity of the heat transfer tube (3); the bottom of the heat transfer tube (3) is provided with a base (5) bearing the tobacco part (101), The base (5) is provided with a through hole (501) that communicates with the tobacco part (101) and the air intake passage (6). 11. The low-temperature smoke according to claim 10, characterized in that, a first gas storage connecting the tobacco part (101) and the air hole (501) is provided between the base (5) and the tobacco part (101) cavity (7). 12. The low-temperature smoke according to claim 10 or 11, characterized in that it further comprises an outer sleeve (8), and the heating body (2) and the heat transfer pipe (3) are fixed on the outer sleeve (8) through the base (5). 8) Inside, the outer sleeve (8) is also provided with a battery (9) located below the heating body (2), and between the base (5) and the battery (9) is provided with an air hole (501) and an air intake channel. (6) of the second air storage cavity (10). 13 . The low-temperature smoke according to claim 12 , characterized in that, the outer sleeve ( 8 ) is further provided with a heat insulation mechanism sleeved outside the heating body ( 2 ). 14 . 14. The low-temperature smoke according to claim 13, characterized in that, the heat insulation mechanism comprises a first heat insulation pipe (11) and a second heat insulation pipe (12) in the outer casing (8), the first insulation pipe (11) and the second heat insulation pipe (12). The heat pipe (11) is sleeved between the second heat insulation pipe (12) and the heating body (2). 15. The low-temperature smoke according to claim 14, characterized in that, the air intake passage (6) is provided between the first thermal insulation pipe (11) and the second thermal insulation pipe (12). 16. The low-temperature smoke according to claim 14, characterized in that, a heat insulating cavity (13) is provided between the second heat insulating pipe (12) and the outer sleeve (8).