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CN-117204619-B - Cigarette bullet heated by electromagnetic induction, heating method thereof and electronic cigarette

CN117204619BCN 117204619 BCN117204619 BCN 117204619BCN-117204619-B

Abstract

The invention relates to the technical field of electronic cigarettes, and provides a cigarette cartridge heated by electromagnetic induction, a heating method thereof and a smoking set. The smoke cartridge comprises a smoke generating section, a cooling section, a filtering section and a control circuit board, wherein the smoke generating section comprises an upper part, a lower part, plant smoke generating particles and an electromagnetic induction heater, the upper part and the lower part are respectively provided with a temperature sensor and a metal heating sheet, the electromagnetic induction heater is divided into at least two groups of electromagnetic induction coils, and the cooling section is provided with a plurality of paramagnetic points. The invention can more clearly and accurately master the heating temperature of the plant fuming particles in different stages, and the plant fuming particles are heated in a plurality of temperature areas, so that the temperature of the plant fuming particles in the plurality of temperature areas is regulated to atomize, and finally the plant fuming particles are controlled in the optimal atomization stage. The invention has high precision, high energy efficiency and quick heating, can ensure that different delicious smoke particles can be automatically matched with the electromagnetic induction heater in the smoke section, can reach the optimal working temperature in a short time, and has good temperature control effect, quick smoke output and high atomization quality.

Inventors

  • ZHOU JUN
  • LI TAO
  • Xue Tuanwei
  • ZHU ZHIPENG
  • DUAN LEI

Assignees

  • 深圳佳聚电子技术有限公司

Dates

Publication Date
20260508
Application Date
20230915

Claims (10)

  1. 1. The cigarette bullet heated by electromagnetic induction is characterized by comprising a smoke generating section (1), a cooling section (2), a filtering section (3) and a control circuit board (4), wherein the smoke generating section, the cooling section (2) and the filtering section (3) are sequentially arranged along the axial direction upwards; The smoke generating section (1) comprises an upper part (11), a lower part (12), plant smoke generating particles (13) and an electromagnetic induction heater (14), wherein the electromagnetic induction heater (14) comprises at least two groups of electromagnetic induction coils, the upper part (11) and the lower part (12) are respectively positioned at the top and the bottom of the electromagnetic induction heater (14), a heat insulation pipe (15) is arranged on the outer wall of the smoke generating section (1), the electromagnetic induction heater (14) is arranged around the heat insulation pipe (15) and is divided into at least two groups of electromagnetic induction coils in the length direction of the heat insulation pipe (15), the electromagnetic induction coils are respectively an upper electromagnetic induction coil (141) close to the upper part (11), a lower electromagnetic induction coil (142) close to the lower part (12) and N electromagnetic induction coils positioned in the middle, the N electromagnetic induction coils positioned in the middle comprise a first electromagnetic induction coil, a second electromagnetic induction coil and an N electromagnetic induction coil, wherein the N electromagnetic induction coils are sequentially arranged in the direction from the upper part (11) to the lower part (12), the N electromagnetic induction coils are divided into the upper electromagnetic induction coils (142) and the N electromagnetic induction coils when the N=0; The upper part (11) is provided with an upper temperature sensor (111) and an upper metal heating plate (112), a temperature sensing surface of the upper temperature sensor (111) passes through the upper part (11) to face into the smoke generating section (1), the lower part (12) is provided with a lower temperature sensor (121) and a lower metal heating plate (122), a temperature sensing surface of the lower temperature sensor (121) passes through the lower part (12) to face into the smoke generating section (1), the upper temperature sensor (111) and the lower temperature sensor (121) are used for measuring the temperature inside the smoke generating section (1), and the upper metal heating plate (112) and the lower metal heating plate (122) are both arranged at the axle center position of the smoke generating section (1) and extend into plant smoke generating particles (13); The upper temperature sensor (111), the lower temperature sensor (121), the upper electromagnetic induction coil (141), the lower electromagnetic induction coil (142), the first electromagnetic induction coil, the second electromagnetic induction coil, the third electromagnetic induction coil, the nth electromagnetic induction coil are all connected with the control circuit board (4), the control circuit board (4) is used for receiving temperature signals sent by the upper temperature sensor (111) and the lower temperature sensor (121), and sending control signals to the upper electromagnetic induction coil (141), the lower electromagnetic induction coil (142), the first electromagnetic induction coil, the second electromagnetic induction coil, the third electromagnetic induction coil, the nth electromagnetic induction coil according to the temperature signals so that the electromagnetic induction coils of different groups are respectively and independently connected or disconnected with power sources; The plant fuming particles (13) are prepared by mixing plant particles and metal powder, wherein the volume and the volume use ratio of the plant particles to the metal powder is 2-10:1, and the plant particles are obtained by extrusion molding of plant flower and leaf powder, a binder and perfume and then drying; the smoke filter comprises a smoke cooling section (2), a control circuit board (4) and a filtering section (3), wherein the cooling section (2) is used for guiding and cooling smoke and preliminarily filtering powder substances in the smoke, the cooling section (2) is provided with a plurality of metal paramagnetic points (21), the metal paramagnetic points (21) are connected with the control circuit board (4), the Curie temperature of the metal paramagnetic points (21) is the smoke temperature of plant particles, the control circuit board (4) is used for identifying smoke bomb parameters and controlling the heating temperature of an electromagnetic induction heater (14), and the filtering section (3) is used for filtering the powder substances in the smoke.
  2. 2. A cartridge heated by electromagnetic induction according to claim 1, characterized in that the metallic heating plate (112) is shaped as a straight, curled, spiral or multi-plate structure.
  3. 3. A cartridge heated by electromagnetic induction according to claim 1, wherein the metallic heating plate (112) is made of one or more of iron, nickel, molybdenum, chromium, tungsten.
  4. 4. A cartridge heated by electromagnetic induction according to claim 1, characterized in that the preparation method of the plant smoking particles (13) is: a. dedusting and sterilizing plant flowers and leaves, then crushing the plant flowers and leaves into powder, and sieving the powder with a 100-300-mesh sieve; b. Mixing the obtained powder with binder and perfume, extrusion molding, and oven drying to obtain plant granule; c. and uniformly mixing the obtained plant particles with metal powder to obtain the plant fuming particles (13).
  5. 5. The cartridge of claim 4, wherein the pulverizing in step a is performed by coarse pulverizing into powder capable of passing through a 30-70 mesh sieve, and fine pulverizing into powder capable of passing through a 100-300 mesh sieve.
  6. 6. A cartridge according to claim 1, wherein the plant smoke particles (13) have a particle size of 18-100 mesh, the metal powder has a particle size distribution of 500-600 microns of 60-70%, and 800 microns or less of at least 90%.
  7. 7. A cartridge heated by electromagnetic induction according to claim 1, wherein the metal powder comprises one or more of iron oxide, titanium oxide, manganese oxide, cerium oxide, zirconium oxide.
  8. 8. The heating method of a cartridge heated by electromagnetic induction according to any one of claims 1 to 7, comprising the steps of: S1, when a user inhales, a control circuit board (4) determines the smoke temperature of plant particles by identifying a metal paramagnetic point (21), so that the heating temperature of an electromagnetic induction heater (14) is determined, then a control signal is sent to enable a plurality of electromagnetic induction coils in the electromagnetic induction heater (14) to be communicated with a power supply, an alternating magnetic field is generated under the action of alternating current, the upper metal heating plate (112) and the lower metal heating plate (122) generate eddy currents through cutting alternating magnetic lines to generate heat, meanwhile, metal powder in the plant smoke particles (13) also generate eddy currents to generate heat, the plant particles are heated to generate atomization, and the upper temperature sensor (111) and the lower temperature sensor (121) measure the temperature of a smoke section and send measured temperature signals to the control circuit board (4); s2, when the temperature of the smoke generating section measured by the upper temperature sensor (111) exceeds a set threshold value, cutting off the power supply of the electromagnetic induction coil close to the upper part (11), and stopping the operation of the electromagnetic induction coil close to the upper part (11); When the temperature of the smoke generating section measured by the lower temperature sensor (121) exceeds a set threshold value, cutting off the power supply of the electromagnetic induction coil close to the lower part (12), and stopping the operation of the electromagnetic induction coil close to the lower part (12); and S3, when the temperature of the smoke generating section measured by the upper temperature sensor (111) is lower than a set threshold value, the upper electromagnetic induction coil (141) and the lower electromagnetic induction coil (142) are communicated with a power supply, and the heating operation of the steps S1 to S3 is repeated.
  9. 9. The method of claim 8, wherein the threshold is set to 260-340 ℃ in steps S2-S3.
  10. 10. An electronic cigarette characterized by comprising the cartridge according to any one of claims 1 to 7 heated by electromagnetic induction.

Description

Cigarette bullet heated by electromagnetic induction, heating method thereof and electronic cigarette Technical Field The invention relates to the technical field of electronic cigarettes, in particular to a cigarette bullet heated by electromagnetic induction, a heating method thereof and an electronic cigarette. Background Conventional electronic cigarettes typically use a resistive heater to atomize the electronic vaping liquid in the electronic vaping. The heating mode has low energy use efficiency, and relatively slow heating temperature rise, and can not reach the optimal temperature in a short time, so that the smoke outlet speed and the smoke outlet effect are affected. And the life of such heaters is relatively short. Compared with the traditional tobacco products, the heating non-combustible electronic tobacco products keep the smoking feeling similar to that of the traditional tobacco products, and meanwhile, compared with the traditional tobacco products, the heating non-combustible electronic tobacco products have obvious promotion in the aspects of smoke harmful ingredient control, flow measurement smoke release, soot pollution and the like, and are gradually accepted by consumers. Heated non-combustible electronic tobacco products typically deliver tobacco flavor to the consumer in a "heated non-combustible" manner that causes the tobacco to be heated only at relatively low temperatures (typically below 500 ℃). At present, the heating modes of the non-combustion smoking set in the market mainly comprise the following 3 modes: 1) Ceramic sheet heating core, wherein the ceramic sheet is represented by IQOS, the matrix is alumina ceramic, the thickness of the ceramic sheet heating core is about 0.5mm, the ceramic sheet heating core has high manufacturing cost, is easy to break, and is uneven in tobacco heating, and the tobacco with a circular section is heated only in a line range, so that a large amount of waste is caused; 2) The columnar needle type heating core is cylindrical, the top of the columnar needle type heating core is provided with a needle cone, the range of the columnar needle type heating core is larger and the uniformity is higher than that of a ceramic sheet type heating core, but the diameter of the columnar needle type heating core is thicker, the tobacco insertion resistance is larger, and the tobacco is easy to cut off; 3) The heating body is annular, and tobacco is inserted into the annular ring for heating. The heat distribution gradually rises outwards with the center of the circular section of the tobacco, and most of the temperature acting on the cigarettes is in the part of the cigarette paper, so that the taste of the heated tobacco is influenced by the heat distribution. Disclosure of Invention The invention aims to solve at least one of the technical problems and provide the electromagnetic induction heating cartridge with high energy efficiency, quick heating, good temperature control effect and capability of reaching the optimal working temperature in a short time and the heating method thereof. The invention provides a cartridge heated by electromagnetic induction, which comprises a smoke generating section, a cooling section, a filtering section and a control circuit board, wherein the smoke generating section, the cooling section and the filtering section are sequentially arranged along the axial direction upwards; The smoke generating section comprises an upper part, a lower part, plant smoke generating particles and an electromagnetic induction heater, wherein the electromagnetic induction heater comprises at least two groups of electromagnetic induction coils, the upper part and the lower part are respectively positioned at the top and the bottom of the electromagnetic induction heater, a heat insulation pipe is arranged on the outer wall of the smoke generating section, the electromagnetic induction heater is arranged around the heat insulation pipe and is divided into at least two groups of electromagnetic induction coils in the length direction of the heat insulation pipe, the electromagnetic induction heater is respectively an upper electromagnetic induction coil close to the upper part, a lower electromagnetic induction coil close to the lower part and N electromagnetic induction coils positioned in the middle part, the N electromagnetic induction coils positioned in the middle part comprise a first electromagnetic induction coil, a second electromagnetic induction coil and an N electromagnetic induction coil which are sequentially arranged from the upper part to the lower part, wherein the N is an integer more than or equal to 0, and the electromagnetic induction heater is only divided into the upper electromagnetic induction coil and the lower electromagnetic induction coil when N=0. The upper part is provided with an upper temperature sensor and an upper metal heating plate, the temperature sensing surface of the upper temperature sensor passes thro