WO2021135245A1

WO2021135245A1 - Heater for use in heating medium to form aerosol

Info

Publication number: WO2021135245A1
Application number: PCT/CN2020/108616
Authority: WO
Inventors: 郭小义; 刘建福; 钟科军; 尹新强; 易建华; 邢立立
Original assignee: 湖南中烟工业有限责任公司
Priority date: 2020-01-02
Filing date: 2020-08-12
Publication date: 2021-07-08

Abstract

A heater for use in heating a medium for producing an aerosol, comprising a heating pipe (1). An outward protruding air duct outer wall (15) is provided on the outer wall of a pipe body of the heating pipe (1). An airflow channel (2) in communication with the bottom part of the cavity of the pipe body is provided between the inside of the air duct outer wall (15) and a medium inserted into the cavity of the pipe body of the heating pipe (1). The pipe body of the heating pipe (1) and the air duct outer wall (15) together are divided by a continuous temperature control strip (13) into a first heating part (11) and a second heating part (12). The temperature control strip (13) is connected into a loop on the surface of the pipe body and is located in the only tilted plane. The tilted plane is obliquely provided relative to the axial plane and transverse plane of the pipe body. A first heating part electrode (111) is provided on the first heating part (11). A second heating part electrode (121) is provided on the second heating part (12). A common electrode is provided on the temperature control strip (13). The common electrode connects together the first heating part (11) and the second heating part (12) and respectively connects electrodes on the two heating parts to a heating circuit. A processing process is simple, the heating efficiency of the heater (1) is increased, and the experience on a low-temperature vaping instrument is enhanced.

Description

Heater for heating medium to form aerosol

Technical field

The invention relates to a heater for heating a medium to form an aerosol.

Background technique

The gas dispersion system is a colloidal dispersion system formed by dispersing and suspending small solid or liquid particles in a gas medium. The dispersed phase is solid or liquid small particles with a size of 0.001 to 100 μm. The dispersion medium is gas. Liquid aerosol is usually called Fog, solid aerosol is usually called mist.

Traditional cigarettes produce smoke by igniting the high-temperature combustion of tobacco to produce a gas dispersion system. The mist has a large proportion of components and contains a variety of harmful substances. In order to reduce the harm, new tobacco products that require the use of equipment have been introduced—— Low-temperature smoke (also called heat-not-burn smoke). Compared with the traditional cigarette smoking method that needs to be ignited, the smoking device of low-temperature cigarette heating cigarettes directly heats the tobacco or nicotine products, and the heating temperature is between 220-250 ℃, and the smoke is gradually volatilized by curing the tobacco In addition, the tobacco is not directly burned to produce smoke, which can reduce the harmful smoke components produced through the combustion and thermal degradation of tobacco in traditional cigarettes.

The heating tube is a core component of the low-temperature smoking appliance for heating and baking cigarettes. It uses a tubular structure to wrap the cigarettes, and then the heat generated by the self-heating heats the tobacco in the cigarettes from the outside to the inside. The heating pipes of traditional low-temperature smoking sets are mostly multi-layer composite structures, such as the heating device of the baking electronic cigarette disclosed in the Chinese patent application number 201820507322.9, which superimposes the heating material, outer protective material or electrode layer on the metal base material. , The structure and manufacturing process are relatively complicated, the manufacturing cost is high, and the heating tube heats the inserted cigarette as a whole at the same time. If part of the tobacco of the cigarette is heated for too long, it will cause harmful smoke to be generated. It is necessary for external air to enter the inside of the cigarette into a flowing airflow to take out the flue gas. Most of the existing low-temperature smoking appliances also need to separately design the flue to enter the heating part. The internal structure of the flue in the flue continuous.

technical problem

The technical problem solved by the present invention is to provide a heater for heating the medium to form aerosol in view of the complicated process and high cost of the existing medium heater for heating the smoking medium with low temperature smoking device.

Technical solutions

One of the technical solutions adopted by the present invention is as follows.

A heater used to heat a medium to form an aerosol. The heater body is excited to generate conductive carriers when it is energized. The heater is divided into a first heating part and a second heating part that independently generate heat by a temperature control zone. Heating part.

The temperature control zone extends in the form of a sine function curve y=Asin(ωx+φ)+k or a cosine function curve y=Acos(ωx+φ)+k after the heater is expanded in a plane.

In the heater of the above technical solution, further, the wavelength A of the sine function curve or the cosine function curve ranges from 10 mm to 80 mm.

In the heater of the above technical solution, further, the period t of the sine function curve or the cosine function curve ranges from 9.42 mm to 31.4 mm.

In the heater of the above technical solution, further, the first heating part is provided with a first electrode and a second electrode connected to a heating circuit, and the second heating part is provided with a third electrode and a second electrode connected to the heating circuit. Four electrodes.

In the heater of the above technical solution, further, the first electrode and the second electrode on the first heating part, and the third electrode and the fourth electrode on the second heating part are all extending in the circumferential direction of the heater Strip electrode.

In the heater of the above technical solution, further, the length of the electrode matches the circumferential length of the heating part where it is located.

In the heater of the above technical solution, further, temperature sensors are respectively provided on the first heating part and the second heating part.

In the heater of the present technical solution, the temperature control belt is a gap that cuts off the heater, a connecting belt is provided at the temperature control belt, and the connecting belt connects the first heating part and the second heating part Into a whole.

Another technical solution adopted by the present invention is as follows.

A heater for heating a medium to form an aerosol, a cavity for accommodating the heating medium is formed inside the heater, the heater body is excited to generate conductive carriers in the energized state, and the outer wall of the heater has a The outer wall of the airway protruding outside, the inside of the airway outer wall and the medium inserted into the cavity of the heater form an airflow channel communicating with the bottom of the inner cavity of the tube, and the heater is divided by a continuous temperature control zone Into a first heating part and a second heating part.

In the heater of the above technical solution, further, a first heating section electrode is provided on the first heating section, a second heating section electrode is provided on the second heating section, and a common heating section is provided on the temperature control belt. An electrode, the common electrode connects the first heating part and the second heating part together, and is respectively connected to the heating circuit with the electrodes on the two heating parts, so as to realize the independent heating of the first heating part and the second heating part.

In the heater of the above technical solution, further, a first common electrode and a second common electrode are provided on the temperature control belt, and the first common electrode, the second common electrode and the first heating part electrode constitute a circuit loop, The first common electrode, the second common electrode and the second heating part electrode constitute a circuit loop.

In the heater of the above technical solution, further, the outer wall of the air passage is arranged in two groups along the axial direction of the heater body, and the outer walls of the two groups of the air passage respectively intersect the two inflection points of the temperature control zone, and the first heating part The electrode and the second heating part electrode are respectively located on the outer walls of the two air passages, and the first common electrode and the second common electrode respectively connect the divided outer walls of the air passage at the two inflection points of the temperature control zone.

In the heater of the above technical solution, further, the temperature sensor is located in a relatively central area of the first heating part or the second heating part where it is located.

In the heater of the present technical solution, the temperature control belt is a gap that cuts off the heater body, and a common electrode provided on the temperature control belt connects the first heating part and the second heating part to form a complete heater body .

In the heater of the above technical solution, further, the temperature control zone coincides with a period of the sine function curve or the cosine function curve when the tube body is in a planar expansion state.

In the heater of the above technical solution, preferably, the period t of the sine function curve or the cosine function curve ranges from 9.42 mm to 31.4 mm.

In the heater of the above technical solution, preferably, the wavelength A of the sine function curve or the cosine function curve ranges from 10 mm to 80 mm.

Beneficial effect

The heater body of the present invention is divided into two heating parts by a temperature control belt, each heating part realizes independent heating, and the heater body is energized and heated, and there is no need to print a heating circuit for district heating or install other heating circuits on the surface of the heater. Zone heating structure, the processing technology is simpler. By energizing and connecting the electrodes on each heating part, the heating of the smoking medium inside the heater can be realized. In the whole heating process of the smoking medium, the heating process can be done by dividing heating or heating in one area and preheating in the other area. Improve the smoking efficiency and continuity of the smoking medium, and avoid the generation of harmful substances caused by continuous heating of a single area.

In the present invention, the heater body is divided into two parts by the temperature control belt, and the two parts are spliced into a complete heater by the common electrode. The common electrode can be used as the connection structure of the heater, and can also be used as the connecting structure of the heating heater and the heating circuit. The conductive electrode, through the arrangement of the common electrode, can increase the zone heating control method between the two heating parts of the heater, further improve the heating efficiency of the heater to the internal smoking medium, and enhance the experience of low-temperature smoking utensils.

The present invention achieves the most obvious regional heating effect by dividing the two heating parts of the heating tube through the inclined plane where the temperature control zone is located. When the cigarettes inside the heating tube are heated in sections, the first heating part and the second heating part The two heating parts not only achieve partitions, but also overlap in some areas. The overlapping parts can play a preheating or heat preservation effect, so that the cigarettes can be quickly and continuously heated to produce a gas dispersion system, and the production of heating tubes is also better. Easy to operate and lower cost.

The heater body protrudes outwards to form the outer wall of the air duct. The outer wall of the air duct and the tube body are an integral structure. The air duct is used as the air inlet channel during the suction process of the low-temperature smoke appliance. The airflow flows through the air duct into the bottom of the heater and follows the user The suction effect of the heater is to take out the smoke generated by the heating of the smoking medium inside the heater. The air passage and the heater are integrated, which reduces the air passage structure design inside the smoke appliance, and the air passage is located on the outer wall of the heater, which is not easy to occur Blocked, smoke is more continuous and smooth.

Description of the drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of a heater used for heating a medium to form an aerosol in the first embodiment.

Fig. 2 is a front view of the heater in Fig. 1.

Fig. 3 is an expanded schematic diagram of the heater in the first embodiment.

Fig. 4 is a left side view of Fig. 2, focusing on the arrangement on the first heating part.

Fig. 5 is a right side view of Fig. 2, focusing on the arrangement of the second heating part.

Fig. 6 is a schematic diagram of the corresponding cosine function curve after the temperature control band on the heater is expanded in the first embodiment.

Fig. 7 is a schematic view of the front three-dimensional structure of the heating tube of the heater in the second embodiment.

Fig. 8 is a schematic view of the three-dimensional structure of the back of the heating tube of the heater in the second embodiment.

Fig. 9 is a front view of the heating tube in Fig. 1.

Figure 10 is a partial schematic diagram of the heating tube and the outer wall of the airway in the second embodiment.

Fig. 11 is a schematic plan view of the heating tube in the second embodiment.

Fig. 12 is a schematic diagram of the corresponding sine function curve after the temperature control zone on the heating tube is expanded in the second embodiment.

Label in the figure: 1-heating tube.

11-first heating part, 111-first heating part electrode, 112-first common electrode, 113-first temperature sensor.

12-Second heating part, 121-Second heating part electrode, 122-Second common electrode, 123-Second temperature sensor.

13- temperature control belt, 14- connecting belt, 15- airway outer wall.

2- Air flow channel.

3- Cigarettes.

The best mode of the present invention

Type here a paragraph describing the best mode of the present invention.

Embodiments of the present invention

Example one.

Referring to Fig. 1, the heater in the figure is a specific embodiment of the present invention, which is used for low-temperature smoking devices to heat the smoking medium to generate a gas dispersion system that can be smoked.

The body of the heater in the figure is a heating tube 1, which is a tube structure with two ends open, one of which is used to insert a smoking medium into the inner cavity of the tube, including but not limited to cigarettes or bombs, and heating tubes The tube body of 1 can be made into a conductor resistance for baking and heating the inserted smoking medium, that is, a semiconductor, with a relatively uniform mixture of polycrystalline materials inside. The tube body of the heating tube 1 can heat up and generate heat when it is energized. Thus, the inserted smoking medium is heated and released to form a gas dispersion system. The tube in this embodiment is divided by the temperature control belt 13 into a first heating part 11 and a second heating part 12 that can generate heat independently. The first heating part 11 and the second heating part 12 are used to treat different areas of the smoking medium. Perform zone heating. The temperature control zone 13 is a continuous arc, which is connected end to end to form a loop and is all located on the outer wall of the heating tube 1. The temperature control zone 13 is all distributed in a single inclined plane, and the inclined planes are respectively opposite to the tube body. The axial plane and the transverse cross section obliquely intersect the tube body, forming a closed-loop continuous intersecting line on the tube wall of the heating tube, and the temperature control zone 13 coincides with the closed-loop continuous intersecting line.

In this embodiment, the first heating portion 11 and the second heating portion 12 are set as heating regions with the same surface area, that is, the first heating portion 11 and the second heating portion 12 heat half of the smoking medium inserted into the heating tube respectively, in order to ensure The first heating part 11 and the second heating part 12 have the same heating surface area. Passing the inclined plane where the temperature control zone 13 is located through the geometric center of the tube body of the heating tube 1 can ensure that the tube body of the heating tube 1 is divided into two. Two heating parts with the same size and point symmetry with the geometric center of the tube.

The front projection of the cylindrical tube body of the heating tube 1 on the plane is the rectangle shown in FIG. 2, and in the front view angle, the inclined plane where the temperature control zone 13 is located is perpendicular to the projection plane, and the temperature control zone 13 is an oblique line Cut the rectangle representing the heating tube 1 obliquely. In order to ensure that a closed-loop continuous intersecting line can be formed before and after the heating tube 1, the inclination angle between the inclined plane where the temperature control zone 13 is located and the transverse section of the tube body is less than or equal to the representative heating tube 1. The diagonal oblique angle of the rectangle of φ, makes the oblique surface where the temperature control zone 13 is located all intersect the tube wall of the heating tube 1. In Fig. 2 of this embodiment, the inclined plane on which the temperature control belt 13 is located coincides with the rectangular diagonal representing the heating tube 1, and the temperature control belt 13 is connected to the left and right sides of the tube body of the heating tube 1 to form a continuous closed loop.

In this embodiment, the temperature control belt 13 is set as a gap for cutting the tube body of the heating tube 1, and the temperature control belt 13 divides the tube body of the heating tube 1 into two independent parts, namely the first heating part 11 and the second heating part 11 Two heating part 12. In order to maintain the overall tubular shape of the heating tube 1, in this embodiment, a connecting belt 14 is provided on the temperature control belt 13. The connecting belt 14 is fixedly connected to the first heating part 11 and the second heating part 12, respectively, to maintain the heating tube 1体结构。 Body structure. In the process of this embodiment, it can be directly processed into a complete tube body first, and then the tube body can be beveled into the first heating part 11 and the second heating part 12 along the set inclined plane of the temperature control zone by the cutting device. Then the connecting belt 14 is connected to the first heating part 11 and the second heating part 12 into the tubular whole of the heating tube by means of gluing, hot melting or brazing. The connecting belt 14 can be an insulating block structure or directly adopted The common electrode participates in the connection of the heating circuit in the first heating part 11 and the second heating part 12.

The connecting belt 14 in this embodiment is only a connecting structure, and keeps the insulating state between the first heating part 11 and the second heating part 12. 1 and 2 in combination, this embodiment is provided with a first electrode 111 and a second electrode 112 on the outer wall of the first heating part 11 of the heating tube 1, the first electrode 111 and the second electrode 112 are respectively connected to the low-temperature smoking set On the same heating circuit, the heating area covered by the first heating part 11 is heated. The second heating part 12 is provided with a third electrode 121 and a fourth electrode 122. The third electrode 121 and the fourth electrode 122 are respectively connected at low temperature. On the same heating circuit of the smoking article, the heating area covered by the second heating part 12 is heated. The first heating part 11 and the second heating part 12 can be heated at the same time, or they can be heated in different zones, or one of the heating parts is heated, and the other heating part is preheated for heating control. For the specific heating control method, please refer to the current There is a heating control circuit for a low-temperature smoking appliance, which is not described in detail in this embodiment.

After the tubular heating tube 1 is obliquely cut from the upper and lower ends by the inclined plane where the temperature control zone 13 is located, the tube body of the heating tube 1 is divided into two heating parts that are individually energized and heated, and an electrode is set on each heating part, so that Each heating part can form a current path. A heating circuit is formed between the two interfaces of the first electrode 111 and the second electrode 112, so that the first heating part 11 forms an energization circuit, so that when the first heating part 11 is energized When the temperature is raised, a heating loop is formed between the two interfaces of the third electrode 121 and the fourth electrode 122, so that the second heating part 12 forms a heating loop, and the second heating part 12 is heated when it is energized. In order to ensure that the current on each heating part flows evenly through the conductors of the respective heating parts, the electrodes on the first heating part 11 and the electrodes on the second heating part 12 are distributed along the central axis of the respective heating parts, as shown in Figures 3 and 4 As shown in Figure 5, the first electrode 111 and the second electrode 112 are arranged on the center line of the outer wall of the first heating part 11 along the axial direction of the heating tube. The tube body of the heating tube is axially arranged on the center line of the outer wall of the second heating part 12, so that the current on each heating part mainly circulates along the middle area of the conductor of the heating part.

At the same time, in order to ensure the uniform distribution of current on each heating part, all electrodes adopt strip electrodes along the circumference of the heating tube, and the length of each electrode matches the circumferential length of the heating part where it is located.

Specifically, as shown in the expanded schematic view of the heating tube in Fig. 3, after the first heating part 11 is expanded, the upper part is wider and the lower part is narrow, that is, in the state of the tube body, the circumferential length of the upper part of the first heating part 11 is longer than the circumferential length of the lower part. The first electrode 111 is located at the upper part of the first heating part 11, and the second electrode 112 is located at the lower part of the first heating part 11, so the length of the first electrode 111 is longer than the length of the second electrode 112; in the same way, the second heating part 12 After unfolding, the upper part is narrow and the lower part is wider, which means that the circumferential length of the upper part of the second heating part 12 is shorter than that of the lower part in the tube state. The third electrode 121 is located on the upper part of the second heating part 12, and the fourth electrode 122 is located In the lower part of the second heating part 12, the length of the third electrode 121 should be shorter than the length of the fourth electrode 122, so that the electrodes adapt to the circumferential length of the respective heating part, increase the circumferential coverage of the heating part by the circulating current, and improve The heating efficiency of the heating section.

In addition, in order to obtain the required temperature of each heating part and realize accurate heating of the smoking medium, a first temperature sensor 113 and a second temperature capable of collecting temperature information are provided on the first heating part 11 and the second heating part 12, respectively. The sensor 123, the first temperature sensor 113 and the second temperature sensor 123 are respectively connected to the heating control module of the corresponding heating part in feedback, and obtain the temperature information of the corresponding heating part from the corresponding temperature sensor, thereby controlling the heating current to the heating part , And finally accurately control the temperature of the heating part.

In order to detect the temperature of the heating part more accurately, the temperature sensor should be set at the central heating position of the respective heating part. Specifically, as shown in Figures 3, 4 and 5, the first temperature sensor 113 is located at the first heating part 11 Between the first electrode 111 and the second electrode 112, and between the first electrode 111, the first temperature sensor 113, and the second electrode 112 are distributed along the central axis of the first heating part 11; the second temperature sensor 123 is located in the second heating Between the third electrode 121 and the fourth electrode 122 of the portion 12, and between the third electrode 121, the second temperature sensor 123, and the fourth electrode 122 are distributed along the central axis of the second heating portion 12.

With reference to Figures 2 and 3, after the tube body of the heating tube 1 in this embodiment is unfolded into a plane, the temperature control zone 13 is unfolded into a continuous wave curve, and the sine function curve y=Asin(ωx+φ)+ In k or cosine function curve y=Acos(ωx+φ)+k, the partitioning effect is the most obvious after the curve in a complete cycle overlaps, and it is easier to operate during production, and the cost is lower, and the effect of segmented heating of the smoking medium is realized. Best, the continuous solid line segment in the cosine function shown in Fig. 6 can be found from the cosine function shown in Fig. 6 that the gradient of the temperature control zone 13 (as shown in Figs. 1 and 2, the temperature control The inclined plane of the belt 13 and the axial plane or transverse section of the tube are inclined at a certain angle) corresponding to the amplitude of the cosine function in Fig. 6, so the position of the temperature control belt 13 can be defined by the amplitude of the corresponding function. The length of the temperature control zone 13 corresponds to the period of the cosine function in FIG. 6, so the length of the temperature control zone 13 can be limited by the period of the corresponding cosine function. In addition, the length of the heating tube 1 determines the upper limit of the amplitude of the cosine function curve corresponding to the temperature control zone 13, and the diameter of the heating tube 1 determines the upper limit of the period of the cosine function curve corresponding to the temperature control zone 13. The perimeter of the cross section of the heating tube 1 corresponds to the period of the cosine function curve.

In this embodiment, the range of the amplitude A of the cosine function curve where the temperature control zone is located is 10mm-80mm. This range can fully ensure that different heating tubes fall into this range, so that it can perform the smoke-producing medium Partition heating can also preheat or/and keep heat in another area when heating another area, so that the smoking medium can be released quickly and continuously. The range of the period t of the sine function or cosine function curve where the temperature control zone 13 is located is 9.42mm-31.4mm. This range enables media of different volumes to be well contained by the heater, which increases the heater’s applicability.

实施例二。 Example two.

Referring to Figures 7 and 8, the heater in the figure is a specific embodiment of the present invention. It is used for non-burning smoking devices to heat the smoking medium to produce aerosol that can be smoked. The heating in the figure The body of the device is a heating tube 1. The heating tube 1 is a tube structure with two ends open, one of which is used to insert a smoking medium into the inner cavity of the tube, including but not limited to cigarettes or bombs, and the tube body of the heating tube 1 It can be made into a semiconductor for baking and heating the inserted smoking medium, and its interior is evenly mixed with polycrystalline materials. The tube body of the heating tube 1 can heat up and generate heat when energized, so as to heat the inserted smoking medium to make Its release forms a gas dispersion system. The tube in this embodiment is divided by the temperature control belt 13 into a first heating part 11 and a second heating part 12 that can independently generate heat. The first heating part 11 and the second heating part 12 are used to treat different areas of the smoking medium. Perform zone heating. The temperature control zone 13 is a continuous arc, which is connected end to end to form a loop and is all located on the outer wall of the heating tube 1. The temperature control zone 13 is all distributed in a single inclined plane, and the inclined planes are respectively opposite to the tube body. The axial plane and the transverse cross section obliquely intersect the tube body, forming a closed-loop continuous intersecting line on the tube wall of the heating tube, and the temperature control zone 13 coincides with the closed-loop continuous intersecting line. The outer wall of the heating tube 1 continuously protrudes outward in the axial direction to form an airway outer wall 15 to form an airway. One end of the airway is connected with the inner cavity of the heating tube 1 to facilitate the entry of external airflow under the action of suction pressure. The inner cavity of the heating tube 1 takes away the fumes.

In this embodiment, the first heating portion 11 and the second heating portion 12 are set as heating regions with the same surface area, that is, the first heating portion 11 and the second heating portion 12 heat half of the smoking medium inserted into the heating tube respectively, in order to ensure The first heating part 11 and the second heating part 12 have the same heating surface area. Pass the inclined plane where the temperature control zone 13 is located through the geometric center of the heating tube 11 to ensure that the tube body of the heating tube 11 is divided into two. Two heating parts with the same size and point symmetry with the geometric center of the tube.

The front projection of the cylindrical tube body of the heating tube 1 on the plane is the rectangle shown in FIG. 8, and in the front view angle, the inclined plane where the temperature control zone 13 is located is perpendicular to the projection plane, and the temperature control zone 13 is an oblique line Cut the rectangle representing the heating tube 1 obliquely. In order to ensure that a closed-loop continuous intersecting line can be formed before and after the heating tube 1, the inclination angle between the inclined plane where the temperature control zone 13 is located and the transverse section of the tube body is less than or equal to the representative heating tube 1. The diagonal oblique angle of the rectangle of φ, makes the oblique surface where the temperature control zone 13 is located all intersect the tube wall of the heating tube 1. In Fig. 8 of the present embodiment, the inclined angle of the inclined surface where the temperature control belt 13 is located is smaller than the diagonal of the rectangle of the heating tube 1, and the temperature control belt 13 is connected to the left and right sides of the heating tube 1 to form a continuous closed loop.

In this embodiment, the temperature control belt 13 is set to cut off the tube body of the heating tube 1 together with the outer wall 15 of the airway. The temperature control belt 13 divides the tube body of the heating tube 1 into two independent parts, namely the first The heating part 11 and the second heating part 12. In order to maintain the overall tubular shape of the heating tube 1, in this embodiment, a first common electrode 112 and a second common electrode 122 are provided on the temperature control zone 13, and the first common electrode 112 and the second common electrode 122 are located on the temperature control zone 13 respectively. The two positions are both fixedly connected to the first heating part 11 and the second heating part 12, and a common electrode is used as a connecting structure to connect the first heating part 11 and the second heating part 12 to form an integral tube structure of the heating tube 1. In the process of this embodiment, it can be directly processed into a complete tube body first, and then the tube body can be beveled into the first heating part 11 and the second heating part 12 along the set inclined plane of the temperature control zone by the cutting device. Then the first common electrode 112 and the second common electrode 122 are connected to the first heating part 11 and the second heating part 12 to form a tubular whole of the heating tube by means of gluing, hot melting or brazing, and the first common electrode 112 The second common electrode 122 and the second common electrode 122 can also participate in the connection of the heating circuit in the first heating part 11 and the second heating part 12 as an electrode structure pole.

As shown in FIG. 9, in this embodiment, two outer air passage walls 15 are formed on the outer wall of the heating tube 1. The outer air passage 15 is an integral structure with the tube body of the heating tube 1, and the tube body of the heating tube 1 is made of the same conductive material. , Can conduct heat together. The two air passage outer walls 15 are arranged parallel to each other along the axis of the tube body. The two air passage outer walls 15 are arranged at an interval of 180° on the circumference of the tube body of the heating tube 1, and the two sets of air passage outer walls 15 are connected to the temperature control zone 13 respectively. The two inflection points intersect.

Referring to Figure 10, the outer wall 15 of the airway in this embodiment is specifically an arc-shaped tube wall protruding from the arc of the tube body of the heating tube 2, and a convex space is formed on the outer side of the tube body of the heating tube 1. After being inserted into the tube body of the heating tube 1 as a medium, an axially continuous channel is formed between the inside of the airway outer wall 15 and the outer wall of the cigarette 3 inserted into the inner cavity of the heating tube 1, that is, the airflow channel 2, the cigarette 3 Do not insert the heating tube 1 to the bottom. The bottom of the cigarette 3 forms a space at the bottom of the heating chamber 1 to connect the bottom of the air flow channel 2 with the bottom of the inner cavity of the heating tube 1. The air flow in the air flow channel 2 runs from the top to the bottom of the tube. After flowing down to the bottom, it directly enters the bottom of the inner wall of the heating tube 1, and then the smoked smoke inside the cigarette 3 is taken out along the inside of the heating tube through the suction pressure acting on the top of the heating tube 1.

9 and 11 in combination, this embodiment is provided with a first heating part electrode 111 on the outer wall of the first heating part 11 of the heating tube 1, the first heating part electrode 111 and the first common electrode 112 or/and the second common The electrode 122 is connected to the same heating circuit of the low-temperature smoking appliance to heat the heating area covered by the first heating part 11. The second heating part 12 is provided with a second heating part electrode 121, the second heating part electrode 121 and the second heating part A common electrode 112 or/and a second common electrode 122 are respectively connected to the same heating circuit of the low-temperature smoking appliance to heat the heating area covered by the second heating part 12. The first heating part 11 and the second heating part 12 can be heated at the same time, or they can be heated in different zones, or one of the heating parts is heated, and the other heating part is preheated for heating control. For the specific heating control method, please refer to the current There is a heating control circuit for a low-temperature smoking appliance, which is not described in detail in this embodiment.

After the tubular heating tube 1 is obliquely cut from the upper and lower ends by the inclined plane where the temperature control zone 13 is located, the tube body of the heating tube 1 is divided into two heating parts that are individually energized and heated, and an electrode is set on each heating part, so that The electrodes on each heating part cooperate with the common electrode to form a current path. The two interfaces of the first heating part electrode 111 and the first common electrode 112 form a heating loop, so that the first heating part 11 is energized. The first heating part 11 is heated when energized, and a heating circuit is formed between the two interfaces of the second heating part electrode 121 and the second common electrode 122, so that the second heating part 12 forms a heating circuit to make the second heating The part 12 heats up when energized. In order to ensure that the current on each heating part flows through the respective heating parts equally, between the first heating part electrode 111 on the first heating part 11 and the first common electrode 121, and the second heating part electrode 121 on the second heating part 12 And the second common electrode 122 are distributed along the central axis of the respective heating part, as shown in FIGS. 7, 8 and 11, that is, the first heating part electrode 111 is located at the center line of the outer wall of the first heating part 11, This position is in the same axial direction as one of the closed loop inflection points of the temperature control zone 13, the first common electrode 112 is arranged at the closed loop inflection point of the temperature control zone; the second heating part electrode 121 is located at the center line of the outer wall of the second heating part 12 The position is in the same axial direction as the other closed loop inflection point of the temperature control zone 13, the second common electrode 122 is arranged at the closed loop inflection point of the temperature control zone, and the outer walls 15 of the two air passages are respectively along the first heating part 11 and the second The centers of the two heating parts 12 are arranged axially, so that the first heating part electrode 111 and the first common electrode 112 are both located on the outer wall 15 of one of the air channels, and the second heating part electrode 121 and the second common electrode 122 are both located in the other air channel. On the outer wall 15, in this way, the current on each heating part mainly circulates along the middle area of the heating part. In order to prevent the arrangement of the common electrode from blocking the air flow passage of the outer wall 15 of the airway, the first common electrode 112 and the second common electrode 122 can be arranged as arc electrodes with the same arc on the outer wall 15 of the airway.

The first heating part 11 and the second heating part 12 of the heating tube 1 of this embodiment divided by the temperature control zone 13 each contain a complete annular heating area, in order to make the annular heating area and the same The heating effect of other main bodies is the same. When the heating circuit is connected, the first heating part electrode 111 and the second heating part electrode 112 can be connected to the first common electrode 112 and the second common electrode 122 on the same circuit at the same time. When a heating section 11 generates heat, the first heating section electrode 111 and the first common electrode 112 are energized to heat the lower half of the first heating section 11, and the first heating section electrode 111 and the second common electrode 122 are energized to heat the first heating section. The upper half of the section 11 is energized to heat the annular heating area on the upper part of the first heating section 11. Similarly, when the second heating section 12 generates heat, the second heating section electrode 121 and the second common electrode 122 are energized to the second heating section 12 The upper part of the second heating part 12 is energized and heated, the second heating part electrode 121 and the first common electrode 112 are energized to energize the lower part of the second heating part 12, and the annular heating area at the lower part of the second heating part 12 is heated , To increase the energized heating area of each heating part to ensure that the smoking medium in the heating area corresponding to the heating part is uniformly heated.

In addition, in order to make each heating part obtain the required temperature and realize accurate heating of the smoking medium, a first temperature sensor 113 and a second temperature capable of collecting temperature information are respectively provided on the first heating part 11 and the second heating part 12 The sensor 123, the first temperature sensor 113 and the second temperature sensor 123 are respectively connected to the heating control module of the corresponding heating part in feedback, and obtain the temperature information of the corresponding heating part from the corresponding temperature sensor, thereby controlling the heating current to the heating part , And finally accurately control the temperature of the heating part.

In order to detect the temperature of the heating part more accurately, the temperature sensor should be set at the central heating position of the respective heating part, that is, the temperature sensor is located in the relatively central area of the first heating part or the second heating part where it is located. It refers to the position close to the center of the plane after the heater is unfolded in the plane. Specifically, as shown in Figures 7, 8 and 11, the first temperature sensor 113 on the first heating part 11 is located on the outer wall 15 of the air passage between the first heating part electrode 111 and the first common electrode 112, so that the first The heating part electrode 111, the first temperature sensor 113 and the first common electrode 112 are distributed along the central axis of the first heating part 11; the second temperature sensor 123 on the second heating part 12 is located on the second heating part electrode 121 and The outer wall 15 of the air passage between the second common electrodes 122 such that the second heating part electrode 121, the second temperature sensor 123 and the second common electrode 122 are distributed along the central axis of the second heating part 12.

9 and 11 in combination, after the tube body of the heating tube 1 in this embodiment is unfolded into a plane, the temperature control zone 13 is unfolded into a continuous wave curve, and the sine function curve y=Asin(ωx+φ)+ k or cosine function curve y=Acos(ωx+φ)+k extends the curve within a complete cycle to overlap, the partition effect is the most obvious, the production is easier to operate, the cost is lower, and the segmented heating of the smoking medium is realized. The effect is the best. The continuous solid line segment in the cosine function shown in Fig. 12 can be found from the cosine curve shown in Fig. 12 that the gradient of the temperature control zone 13 (as shown in Figs. 7 and 8, the temperature The inclined plane where the control zone 13 is located is inclined at a certain angle with the axial plane or transverse section of the tube body) corresponds to the amplitude of the cosine function in Fig. 10, so the position of the temperature control zone 13 can be defined by the amplitude of its corresponding function. The length of the temperature control zone 13 corresponds to the period of the cosine function in FIG. 10, so the length of the temperature control zone 13 can be limited by the period of the corresponding cosine function. In addition, the length of the heating tube 1 determines the upper limit of the amplitude of the cosine function curve corresponding to the temperature control zone 13, and the diameter of the heating tube 1 determines the upper limit of the period of the cosine function curve corresponding to the temperature control zone 13. The perimeter of the cross section of the heating tube 1 corresponds to the period of the cosine function curve.

In this embodiment, the range of the amplitude a of the cosine function curve where the temperature control zone 13 is located is 10mm-80mm. This range can fully ensure that different heating tubes fall into this range, so that it can affect the smoking medium. Partition heating is performed, and at the same time, one area can be preheated or/and kept warm when another area is heated, so that the smoking medium can be released quickly and continuously. The range of the period t of the sine function or cosine function curve where the temperature control zone 13 is located is 9.42mm-31.4mm. This range enables media of different volumes to be well contained by the heater, which increases the heater’s applicability.

The "aerosol" mentioned in the art is equivalent to a "gas dispersion system".

The technical term for "non-burning smoking set" in the art is also called "low temperature smoking set".

The technical terms for "heating tube" and "heating part" in the art are also called "heating tube" and "heating part".

Industrial applicability

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Claims

A heater for heating a medium to form an aerosol, characterized in that: the heater body is excited to generate conductive carriers in a energized state, and the heater is divided by a temperature control zone into an independent heating first Section and the second heating section;

The temperature control zone extends in the form of a sine function curve y=Asin(ωx+φ)+k or a cosine function curve y=Acos(ωx+φ)+k after the heater is expanded in a plane.
The heater for heating a medium to form an aerosol according to claim 1, wherein the wavelength A of the sine function curve or the cosine function curve ranges from 10 mm to 80 mm, and the period of the sine function curve or the cosine function curve The range of t is 9.42mm-31.4mm.
The heater for heating a medium to form an aerosol according to claim 1, wherein the first heating part is provided with a first electrode and a second electrode connected to a heating circuit, and the second heating part is provided with a connection The third electrode and the fourth electrode of the heating circuit.
According to the heater for heating a medium to form an aerosol according to claim 3, the first electrode and the second electrode on the first heating part, and the third electrode and the fourth electrode on the second heating part are both It is a strip electrode extending in the circumferential direction of the heater.
According to the heater for heating a medium to form an aerosol according to claim 4, the length of the electrode matches the circumferential length of the heating part where it is located.
According to the heater for heating a medium to form an aerosol according to claim 4, the first heating part and the second heating part are respectively provided with temperature sensors.
The heater for heating a medium to form an aerosol according to any one of claims 1-6, wherein the temperature control zone is a gap that cuts off the heater, and a connecting zone is provided at the temperature control zone , The connecting belt connects the first heating part and the second heating part into a whole.
A heater for heating a medium to form an aerosol, characterized in that: a cavity for accommodating a heating medium is formed inside the heater, and the heater body is excited to generate conductive carriers in an energized state, and the heater The outer wall of the airway has an outer wall of the airway protruding outward, and the inside of the airway outer wall and the medium inserted into the cavity of the heater form an airflow channel communicating with the bottom of the inner cavity of the tube, and the heater is formed by a continuous The temperature control zone is divided into a first heating part and a second heating part;

The temperature control zone extends in the form of a sine function curve y=Asin(ωx+φ)+k or a cosine function curve y=Acos(ωx+φ)+k after the heater is expanded in a plane.
The heater for heating a medium to form an aerosol according to claim 8, wherein the period t of the sine function curve or cosine function curve ranges from 9.42 mm to 31.4 mm, and the sine function curve or cosine function curve The range of wavelength A is 10mm-80mm.
The heater for heating a medium to form an aerosol according to claim 8, wherein the first heating portion is provided with a first heating portion electrode, and the second heating portion is provided with a second heating portion electrode, so The temperature control belt is provided with a common electrode, which connects the first heating part and the second heating part together, and is respectively connected to the heating circuit with the electrodes on the two heating parts to realize the first heating part and the second heating part. The heating part generates heat independently.
The heater for heating a medium to form an aerosol according to claim 10, wherein the temperature control belt is provided with a first common electrode and a second common electrode, the first common electrode, the second common electrode and the second common electrode A heating part electrode forms a circuit loop, and the first common electrode, the second common electrode and the second heating part electrode form a circuit loop.
The heater for heating a medium to form an aerosol according to claim 8, wherein the outer wall of the air passage is arranged in two groups along the axial direction of the heater body, and the outer walls of the two groups of the air passage are respectively connected to the two inflection points of the temperature control zone. Intersecting, the first heating part electrode and the second heating part electrode are respectively located on the outer walls of the two air passages, and the first common electrode and the second common electrode are respectively at the two inflection points of the temperature control zone to divide the air passage The outer wall is connected.
The heater for heating a medium to form an aerosol according to claim 12, wherein the first heating part and the second heating part are respectively provided with temperature sensors.
The heater for heating a medium to form an aerosol according to claim 13, wherein the temperature sensor is located in a relatively central area of the first heating part or the second heating part where it is located.
The heater for heating a medium to form an aerosol according to any one of claims 8-14, wherein the temperature control band is a gap that cuts off the heater body, and the common electrode provided on the temperature control band is The first heating part and the second heating part are connected to form a complete heater body.