WO2021135247A1

WO2021135247A1 - Heater for heating medium to form gas dispersion system

Info

Publication number: WO2021135247A1
Application number: PCT/CN2020/108618
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 heating a medium to form a gas dispersion system comprising a heating tube (1). A tube body of the heating tube (1) is divided into a first heating portion (11) and a second heating portion (12) by a continuous temperature control strip (13). The temperature control strip (13) has a continuous closed loop shape on a surface of the tube body, and is located in a unique inclined plane. The inclined plane is inclined relative to an axial plane and a transverse section of the tube body. A first heating portion electrode (111) is provided on the first heating portion (11). A second heating portion electrode (121) is provided on the second heating portion (12). Common electrodes (112, 122) are provided on the temperature control strip (13). The common electrodes (112, 122) connect the first heating portion (11) and the second heating portion (12) to each other, and are respectively connected to the electrodes on the two heating portions so as to be connected to a heating circuit, such that the first heating portion (11) and the second heating portion (12) generate heat independently. The heating tube (1) has a simple machining process, and has a variety of control methods for region-specific heating, thereby improving the efficiency of the heating tube (1) for heating an internal smoke forming medium, and improving user experience of a low-temperature smoking apparatus.

Description

Heater for heating medium to form gas dispersion system

Technical field

The invention belongs to a non-combustible smoking accessory, and in particular relates to a heater for heating a medium to form a gas dispersion system.

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 tubes of traditional low-temperature smoking sets are mostly multi-layer composite structures. For example, the heating device for baking electronic cigarettes disclosed in the Chinese patent application number 201820507322.9, which superimposes heating materials, outer protective materials or electrode layers on the metal base material. , The structure and production process are relatively complicated, and the production cost is high. And the heating tube also heats the inserted cigarette as a whole. If part of the tobacco is heated for too long, it will cause harmful smoke to be generated, and it is also prone to discontinuous smoke. The problem.

technical problem

The technical problem solved by the present invention is to provide a heater for heating a medium to form a gas dispersion system in view of the disadvantages of complicated process and high cost existing in the heater of the existing non-combustion smoking set.

Technical solutions

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

A heater used to heat a medium to form a gas dispersion system, the heater body is excited to generate conductive carriers in an energized state, and the heater is divided into a first heating part and a second heating part by a temperature control zone unit.

The temperature control zone is located in an inclined plane, and the inclined plane is arranged obliquely with respect to the axial plane and the transverse cross section of the heater.

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 first heating part electrode and the second heating part electrode are strip electrodes with a surface area larger than that of the first and second common electrodes, and are arranged along the circumferential direction of the heating part where they are 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 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 for heating a medium to form a gas dispersion system of the present technical solution, the temperature control zone is a gap that cuts the tube body of the heating tube, and the common electrode provided on the temperature control zone connects the first heating part It is connected with the second heating part to form a complete tube body of the heating tube.

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 heater is in a planar expansion state.

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

A heater used to heat a medium to form a gas dispersion system, the heater has a space that can accommodate the heating medium, the heater body is excited to generate conductive carriers when it is energized, and the heating tube is open at both ends The heater is divided into a first heating part 11 and a second heating part 12 that generate heat independently by a temperature control belt 13.

The temperature control zone 13 is located in an oblique plane, and the oblique plane is obliquely arranged with respect to the axial plane and the transverse cross-section of the tube body.

The heater is provided with an air passage 2 fixedly connecting the first heating part 11 and the second heating part 12, and one end of the air passage 2 is in communication with the space of the heater.

In the heater of the above technical solution, further, the first heating part 11 is provided with a first electrode 111 and a second electrode 112 connected to a heating circuit, and the second heating part 12 is provided with a first electrode connected to the heating circuit. Three electrodes 121 and a fourth electrode 122.

In the heater of the above technical solution, further, the electrodes between the electrodes on the first heating portion 11 and the electrodes on the second heating portion 12 are both strip-shaped electrodes along the circumferential direction of the heater body.

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

In the heater of the above technical solution, further, a first temperature sensor 113 and a second temperature sensor 123 are provided on the first heating portion 11 and the second heating portion 12, respectively.

In the heater of the above technical solution, further, the temperature control belt 13 coincides with a period of the sine function curve or the cosine function curve when the tube body is in a flat expanded state.

In the heater for heating a medium to form a gas dispersion system of the present technical solution, the air passages 2 are in two groups, which are respectively arranged and fixed to the outer wall of the tube body along the axial direction of the heater body, and are respectively connected to the temperature The two positions of the control belt 13 intersect.

In the heater of the above technical solution, further, the air passage 2 is open at both ends with independent air flow channels, the top end is the air inlet end, and the bottom end is connected with the bottom end of the heater.

In the heater of the above technical solution, further, it further includes a bottom cover 3 buckled on the heater body and the bottom end of the air passage 2 at the same time. The bottom cover 3 is provided with a positioning edge 31 buckled with the heater body. The positioning edge 31 is provided with an air inlet 32 which communicates the bottom end of the air passage 2 and the bottom end of the heater with each other.

Beneficial effect

The heating tube of the present invention is divided into two heating parts by a temperature control zone, each heating part realizes independent heating. The heating tube of the heater is a semiconductor, and its interior is uniformly mixed with polycrystalline materials, which can be excited by conductive carriers after being energized. As a result, the overall temperature is raised to form a heater, and the heating tube itself is energized to generate heat. There is no need to print a heating circuit for district heating on the surface of the heating tube, and the processing technology is simpler. By energizing and connecting the electrodes on each heating part, the heating of the smoking medium inside the heating tube can be achieved. In the entire heating process of the smoking medium, the heating process can be done by heating in one zone or heating in one zone and preheating in the other zone. 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 heating tube is divided into two parts by a temperature control belt, and the two parts are spliced into a complete tube body of the heating tube by a common electrode. The common electrode can be used as a connecting structure of the heating tube, and can also be used as a connection between the heating tube and the heating circuit. Through the setting of the common electrode, the zone heating control method between the two heating parts of the heating tube can be increased, and the heating efficiency of the heating tube to the internal smoking medium can be further improved, and the experience of low-temperature smoking utensils can be improved.

The present invention achieves the most obvious zone heating effect achieved by the two heating parts after the heater is divided by an inclined plane. When the cigarettes inside the heater are heated in sections, the first heating part and the second heating part both achieve At the same time, there are some overlapping areas. The overlapping parts can play a preheating or heat preservation effect, so that the cigarettes can be heated quickly and continuously to produce a gas dispersion system. The production of the heater is also easier to operate and more costly. low.

In addition, the present invention achieves the most obvious zone heating effect achieved by the two heating parts after the heating tube is divided by the inclined plane. When the cigarettes inside the heating tube are heated in sections, the first heating part and the second heating part It not only realizes the partitioning, but also overlaps some areas. The overlapped part can play a preheating or heat preservation effect, so that the cigarette can be quickly and continuously heated to produce a gas dispersion system. The production of the heating tube is also more convenient to operate. The cost is lower and.

The heater of the present invention is integrated with an air passage. The air passage is used as an integral structural connection between the first heating part and the second heating part of the heater, and at the same time, it also serves as an air inlet passage during the suction process of the low-temperature smoking appliance. The air passage flows into the bottom of the heater. With the user's suction, the smoke generated by the heating of the smoking medium inside the heater is taken out. The air passage and the heater body are integrally connected to reduce the air passage inside the smoker. The structure design, and the air passage is located on the outer wall of the heater, it is not easy to be blocked, and the 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 a gas dispersion system in Embodiment 1. FIG.

Fig. 2 is a front view of the heating tube in Fig. 1.

Fig. 3 is a schematic diagram of an expanded plan view of the heating tube 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 zone on the heating tube is expanded in the first embodiment.

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

Fig. 8 is a front view of the heating tube in Fig. 7.

Fig. 9 is a schematic plan view of the heating tube in the second embodiment.

Fig. 10 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.

Fig. 11 is an exploded schematic diagram of the heating tube and the bottom cover in the second embodiment.

Label in the figure.

1- Heating tube.

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

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

13-Temperature control zone.

2- Airway.

3-bottom cover, 31-positioning side, 32-air inlet.

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 Figure 1, the heating tube 1 in the figure is an embodiment of the heater for heating a medium to form a gas dispersion system according to the present invention. A smoking medium is inserted into the internal cavity, including but not limited to cigarettes or pods. The tube body of the heating tube 1 can be made into a resistor for baking and heating the inserted smoking medium. The heating tube is a semiconductor, and its interior is evenly mixed. Crystal material, the tube body of the heating tube 1 can heat up and generate heat when it is energized, so as to heat the inserted smoking medium and release it 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 the present embodiment, the inclined angle of the inclined plane where the temperature control belt 13 is located is smaller than the rectangular diagonal 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 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 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 left and right 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 heating tube 1 into 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.

1 and 2 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 evenly through the conductor of the respective heating part, between the first heating part electrode 111 on the first heating part 11 and the first common electrode 121, the second heating part on the second heating part 12 The electrode 121 and the second common electrode 122 are distributed along the central axis of the respective heating portion, as shown in FIG. 3, FIG. 4, and FIG. 5, that is, the first heating portion electrode 111 is located on the center line of the outer wall of the first heating portion 11 Position, which 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 in the tube body of the second heating part 12 The position of the center line of the outer wall is in the same axial direction as the other closed loop inflection point of the temperature control zone 13, and the second common electrode 122 is arranged at the closed loop inflection point of the temperature control zone, so that the current on each heating part mainly follows the heating part conductor Circulates in the middle area.

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 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, 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. 3, 4, and 5, the first temperature sensor 113 on the first heating part 11 is located between the first heating part electrode 111 and the first common electrode 112, and the first heating part electrode 111, the first heating part electrode 111 and the first common electrode 112 are located between the first heating part electrode 111 and the first common electrode 112. A 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 between the second heating part electrode 121 and the second common electrode 122 And 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.

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, which is similar to the sine function curve x=ksint or the cosine function curve x= After the curves in a complete cycle in kcost overlap, the partition effect is the most obvious, the production is easier to operate, the cost is lower, and the effect of segmented heating of the smoking medium is the best. The continuous solid line segment in the cosine function as shown in Figure 6. From the cosine function shown in Figure 6, it can be found that the gradient of the temperature control zone 13 (as shown in Figures 1 and 2, where the temperature control zone 13 is The inclined plane and the axial plane or transverse section of the tube body are inclined at a certain angle) corresponding to the amplitude of the cosine function in Fig. 6, so the position of the temperature control zone 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 lower limit of the amplitude a of the cosine function curve where the temperature control zone is located is in the range of 0-10mm, and the upper limit of the amplitude a is in the range of 20-100mm. This range can fully guarantee different heating The pipes fall into this range, so that it can heat the smoking medium in sections, and at the same time, it can also preheat or/and keep heat in another area when heating another area, so that the smoking medium can be quickly and continuously heated. Be released. 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 Fig. 7, the heater in the figure is another specific embodiment of the present invention, which is used for a non-burning smoking device 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 semiconductor that bakes and heats the inserted smoking medium. Polycrystalline materials are uniformly mixed inside. The tube body of the heating tube 1 can heat up and generate heat when it is energized, so that the inserted smoking medium can be heated. The medium is heated to release it 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. The outer wall of the heating tube 1 is fixedly provided with an airway 2, one end of the airway 2 is connected to the inner cavity of the heating tube 1, which is convenient for the external airflow to enter the inner cavity of the heating tube 1 under the action of suction pressure to take away the smoke and smoke. gas.

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 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 end 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, the air passage provided on the outer wall of the heating tube 1 will fixedly connect the first heating part 11 and the second heating part 12. In this embodiment, two air passages 2 are fixedly provided on the outer wall of the heating tube 1, and the two air passages 2 are arranged along the axis of the tube body, and are arranged at an interval of 180° on the circumference of the tube body. The two air passages 2 intersect with the two positions of the temperature control zone 13 respectively, and are opposite to the two sides of the central plane of the first heating part 11 and the second heating part 12 respectively, so that the outer wall of the air passage 2 and the tube of the heating tube 1 The external wall is fixedly connected. The airway 2 is used as an axial connection structure to connect the first heating part 11 and the second heating part 12 into a tubular whole. The airway 2 is not cut off by the gap of the temperature control zone 13, and the interior remains continuous. Airflow channel. The air passage 2 can be integrally formed with the tube body of the heating tube 1, or a complete tube body can be processed directly, and then the tube body can be beveled into the first heating part 11 and the heating part 11 along the inclined plane of the set temperature control zone by a cutting device. The second heating part 12 is then fixedly connected to the first heating part 11 and the second heating part 12 by means of gluing, hot melting or brazing to connect the first heating part 11 and the second heating part 12 is connected into a tubular whole of the heating pipe.

7 and 11, the bottom of the air passage 2 in this embodiment is connected to the bottom of the heating tube 1. A bottom cover 3 is fastened on the bottom of the heating tube 1, and the bottom cover 3 is provided with the bottom of the heating tube 1 at the same time. The positioning edge 31 buckled with the bottom of the air passage 2 is provided with an air inlet 32 at a circumferential position corresponding to the air passage 2 on the locating edge 31 where the bottom cover 3 and the bottom of the heating tube 1 are buckled. The bottom end of the heating tube 1 and the bottom end of the heating tube 1 are in communication with each other. The air flow inside the air duct 2 flows from top to bottom along its channel to between the bottom of the air duct and the bottom cover 3, enters the heating tube 1 through the air inlet 32, and then passes through the suction pressure acting on the top of the heating tube 1 Bring the fuming smoke upwards along the inside of the heating tube.

With reference to Figures 7, 8 and 9, 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, and the first electrode 111 and the second electrode 112 are respectively connected to On the same heating circuit of the low-temperature smoking set, 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, and the third electrode 121 and the fourth electrode 122 are respectively It is 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 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 Fig. 7 and Fig. 8 As shown in Figure 9, 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 circulates along the middle area of the heating part conductor.

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 Figure 9, the first heating part 11 is similar to an inverted trapezoid after being expanded, with a wide upper part and a narrow lower part, 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 that 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; for the same reason, After the second heating part 12 is unfolded, it resembles a regular trapezoid, which is narrow in the upper part and wider in the lower part. It 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, and the third electrode 121 is located in the second heating part. The fourth electrode 122 is located at the upper part of the second heating part 12, so 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 parts and increase the current flow. The circumferential coverage of the heating part improves the heating efficiency of the heating part.

In order to detect the temperature of the heating part more accurately, this embodiment sets the temperature sensor at the center heating position of the respective heating part. Specifically, as shown in FIGS. 7, 8 and 9, the first temperature sensor 113 is located in 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 along the central axis of the first heating part 11; the second temperature sensor 123 is located in the first Between the third electrode 121 and the fourth electrode 122 of the second heating part 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 part 12.

With reference to Figures 8 and 9, after the tube body of the heating tube 1 in this embodiment is expanded into a plane, the temperature control zone 13 is expanded into a continuous wave curve, which is similar to the sine function curve x=ksint or the cosine function curve x= After the curves in a complete cycle in kcost overlap, the partition effect is the most obvious, the production is easier to operate, the cost is lower, and the effect of segmented heating of the smoking medium is the best, as shown in Figure 10, the cosine function or The continuous solid line segment in the sine function can be found from the cosine or sine curve shown in Fig. 10, the inclination of the temperature control zone 13 (as shown in Figs. 7 and 8, the inclined plane of the temperature control zone 13 and the tube body The axial plane or the transverse cross-section is inclined at a certain angle) corresponding to the amplitude of the cosine function or the sine function in Fig. 10, so the position of the temperature control zone 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 or sine function in FIG. 10, so the length of the temperature control zone 13 can be limited by the period of the corresponding cosine function or sine function. In addition, the length of the heating tube 1 determines the upper limit of the amplitude of the cosine function or sine function curve corresponding to the temperature control zone 13, and the diameter of the heating tube 1 determines the period of the cosine function or sine function curve corresponding to the temperature control zone 13 Upper limit. The perimeter of the cross section of the heating tube 1 corresponds to the period of the cosine function or sine function curve.

In this embodiment, the range of the amplitude a of the cosine function or the sine 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 The smoking medium is heated in zones, and at the same time, it can preheat or/and keep heat preservation for 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 cosine function or 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, increasing Suitability of heater.

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".

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Claims

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

The temperature control zone is located in an inclined plane, and the inclined plane is arranged obliquely with respect to the axial plane and the transverse cross section of the heater.
The heater for heating a medium to form a gas dispersion system according to claim 1, wherein a first heating portion electrode is provided on the first heating portion, and a second heating portion electrode is provided on the second heating portion, The temperature control belt is provided with a common 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 to realize the first heating part and the second heating part. The second heating part generates heat independently.
The heater for heating a medium to form a gas dispersion system according to claim 2, 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 first 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 a gas dispersion system according to claim 3, wherein the first heating part electrode and the second heating part electrode are both strip-shaped electrodes with a surface area larger than that of the first and second common electrodes. Circumferential arrangement of the heating part.
The heater for heating a medium to form a gas dispersion system according to claim 4, wherein the first heating portion and the second heating portion are respectively provided with temperature sensors, and the temperature sensors are located in the first heating portion where they are located Or the relatively central area of the second heating part.
The heater for heating a medium to form a gas dispersion system according to any one of claims 1 to 5, wherein the temperature control zone is a gap that cuts the tube body of the heating tube, and the temperature control zone is provided The common electrode connects the first heating part and the second heating part to form a complete tube body of the heating tube.
The heater for heating a medium to form a gas dispersion system according to claim 1, wherein the temperature control zone coincides with a period of a sine function curve or a cosine function curve when the heater is in a planar expansion state.
A heater for heating a medium to form a gas dispersion system, characterized in that the heater has a space capable of accommodating a heating medium, the heater body is excited to generate conductive carriers in an energized state, and the heating tube It is a tube structure with open ends, and the heater is divided into a first heating part and a second heating part that generate heat independently by a temperature control zone;

The temperature control zone is located in an oblique plane, and the oblique plane is obliquely arranged with respect to the axial plane and the transverse cross section of the tube body;

The heater is provided with an air passage fixedly connecting the first heating part and the second heating part, and one end of the air passage is communicated with the space of the heater.
The heater for heating a medium to form a gas dispersion system according to claim 8, 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 Connect the third electrode and the fourth electrode of the heating circuit.
The heater for heating a medium to form a gas dispersion system according to claim 9, wherein the electrodes on the first heating part and the electrodes on the second heating part are all strips along the circumference of the heater body An electrode, the extending direction of the electrode matches the circumferential length of the heating part where it is located.
The heater for heating a medium to form a gas dispersion system according to claim 10, wherein a first temperature sensor and a second temperature sensor are respectively provided on the first heating part and the second heating part.
The heater for heating a medium to form a gas dispersion system according to claim 8, wherein the temperature control zone coincides with a period of a sine function curve or a cosine function curve when the tube body is in a flat expanded state.
The heater for heating a medium to form a gas dispersion system according to any one of claims 8-12, wherein the air passages are divided into two groups, respectively arranged along the axial direction of the heater body and fixed to the tube body. The outer wall and intersect with two positions of the temperature control zone respectively.
The heater for heating a medium to form a gas dispersion system according to claim 13, wherein the air passage is open at both ends and has independent air flow channels, the top end is the air inlet end, and the bottom end is in communication with the bottom end of the heater.
The heater for heating a medium to form a gas dispersion system according to claim 14, further comprising a bottom cover buckled on the heater body and the bottom end of the air passage at the same time; The positioning edge is provided with an air inlet that communicates the bottom end of the air passage and the bottom end of the heater with each other.