CN212088097U

CN212088097U - Tobacco heating device

Info

Publication number: CN212088097U
Application number: CN202020198127.XU
Authority: CN
Inventors: 张和平; 赵军超; 龚伦伦; 程旭东; 王孝峰
Original assignee: China Tobacco Anhui Industrial Co Ltd; Institute of Advanced Technology University of Science and Technology of China
Current assignee: China Tobacco Anhui Industrial Co Ltd; Institute of Advanced Technology University of Science and Technology of China
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-12-08
Anticipated expiration: 2030-02-20

Abstract

The utility model discloses a tobacco heating device, including the heating device outer wall, go up the port, lower port, the cooling heat insulating part, electric energy input control end, phase transition heat storage core and tobacco accept the chamber, the cooling heat insulating part includes cooling heat insulating part and lower cooling heat insulating part, the heating device outer wall with the upper port is connected, the heating device outer wall with lower port is connected, go up the port with it is connected to go up the cooling heat insulating part, down the port with the cooling heat insulating part is connected down, phase transition heat storage core is in go up between cooling heat insulating part and the lower cooling heat insulating part, the tobacco accept the chamber with the phase transition heat storage core is connected, electric energy input control end set up in lower port. The utility model discloses use phase change material as storing up the heat source to adopt the means of built-in heating, solved the long problem of preheating time in the phase change material use, compare with current heater, the temperature is more stable, and the heating effect is better.

Description

Tobacco heating device

Technical Field

The utility model relates to a heating technology field especially relates to a tobacco heating device.

Background

At present, the global tobacco industry is facing the current situation that the smoking control is becoming stricter, the smoking rate is reduced, and the health consciousness of consumers is improved, and various foreign tobacco companies increase the effort to research and develop and popularize novel tobacco, and the development trend is that the non-combustion tobacco is heated.

A heating non-combustible tobacco product (also called low-temperature cigarette) is a novel tobacco product which heats tobacco shreds by a special heating source, and nicotine and flavor substances in the tobacco shreds are volatilized to generate smoke to meet the requirements of smokers during heating. The tobacco shred or the tobacco extract is heated by a special heat source, and the tobacco shred or the tobacco extract is heated instead of burning the tobacco shred. The heating temperature of the non-combustion tobacco product is not more than 500 ℃ at most, and the cut tobacco of the non-combustion tobacco product is in a non-combustion state during intermittent smoking, so that harmful components generated by high-temperature combustion and cracking of tobacco are reduced as far as possible.

In the prior art, non-combustible tobacco heating appliances mostly adopt an electric heating mode, and the technical proposal is to etch a heating resistance wire on a heating sheet body or a needle body, such as the fiymus patent 'CN 103987286A smoking article with a front plug and an aerosol-forming substrate and a method' and 'CN 104754964A smoking article used together with an internal heating element'. The supply of electrical energy thus meant requires the whole tobacco smoking process to be continued, which has the advantage of using electrical resistance heating for easy temperature control. However, the tobacco needs to be continuously heated in the process of tobacco smoking, and the heat loss is large; energy supply devices such as lithium batteries and the like need to be arranged in the heating appliance, and the heating appliance is bulky in size.

The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tobacco heating device aims at solving current heater when heating, the great technical problem of calorific loss.

In order to achieve the above object, the utility model provides a tobacco heating device, tobacco heating device includes the heating device outer wall, goes up the port, and the chamber is acceptd to port down, cooling heat insulation spare, electric energy input control end, phase transition heat storage core and tobacco, cooling heat insulation spare includes cooling heat insulation spare and lower cooling heat insulation spare, the heating device outer wall with the upper end mouth is connected, the heating device outer wall with lower port is connected, go up the port with it is connected to go up cooling heat insulation spare, lower port with lower cooling heat insulation spare is connected, phase transition heat storage core is in go up between cooling heat insulation spare and the lower cooling heat insulation spare, the tobacco accept the chamber with phase transition heat storage core is connected, electric energy input control end set up in lower port.

Preferably, phase change heat storage core is including acceping the chamber outer wall, acceping the intracavity wall, phase change material, packaging material and the diaphragm that generates heat, it is in to accept the intracavity wall accept intracavity wall inside, just accept the intracavity wall with it is in parallel state to accept the intracavity wall, accept the intracavity wall and accept and have placed phase change material between the intracavity wall, the diaphragm that generates heat embedded in accept the intracavity wall and accept between the intracavity wall, packaging material is used for the encapsulation accept the intracavity wall and accept the interface between the intracavity wall, accept the intracavity wall with it is parallel to each other to accept the intracavity wall, and the surface area of accepting the intracavity wall is greater than the surface area of accepting the intracavity wall, accept the intracavity wall with the tobacco is accepted the chamber and is connected.

Preferably, the outer wall of the accommodating cavity is made of a material with low thermal conductivity, and the structure of the outer wall of the accommodating cavity is a vacuum structure, or an embedded aerogel structure, or a hollow structure.

Preferably, the inner wall of the accommodating cavity is made of a metal material with high thermal conductivity.

Preferably, the phase change material is a metal phase change material or an inorganic salt phase change material, and the phase change temperature range of the phase change material is 150-390 ℃.

Preferably, the heating membrane is PTC heating ceramic, or polyimide heating film, or resistance heating wire, the quantity of the heating membrane is one or more, the heating membrane is embedded into the phase-change material, and the arrangement mode of the heating membrane is a Swiss roll structure, or multilayer intercalation arrangement.

Preferably, the packaging material is high-temperature non-heat-conducting glue, and the temperature of the packaging material is over 800 ℃.

Preferably, the phase change heat storage core is separated from the electric energy input control end by a lower cooling heat insulation piece, and a hollow structure is arranged between the phase change heat storage core and the outer wall of the heating device.

Preferably, the lower port is provided with a plurality of small holes.

Preferably, the outer wall of the heating device, the upper port, the lower port, the upper cooling heat insulation member and the lower cooling heat insulation member are all materials with high heat insulation performance.

The utility model provides a tobacco heating device, including the heating device outer wall, go up the port, lower port, the cooling heat insulating part, electric energy input control end, phase transition heat storage core and tobacco accept the chamber, the cooling heat insulating part includes cooling heat insulating part and lower cooling heat insulating part, the heating device outer wall with the last port is connected, the heating device outer wall with lower port is connected, go up the port with it is connected to go up the cooling heat insulating part, down the port with the cooling heat insulating part is connected down, the phase transition heat storage core is in go up between cooling heat insulating part and the lower cooling heat insulating part, the tobacco accept the chamber with the phase transition heat storage core is connected, electric energy input control end set up in lower port. Through using phase change material as the heat storage source to adopt the means of built-in heating, solved the long problem of preheating time in the phase change material use, compare with current heater, the temperature is more stable, and heating effect is better, has also avoided current heater when heating, and the great phenomenon of calorific loss takes place.

Drawings

FIG. 1 is a schematic view of the assembly of the tobacco heating apparatus of the present invention;

fig. 2 is a schematic cross-sectional view of a heat storage core of the tobacco heating device of the present invention;

FIG. 3 is a schematic view of the lower cooling and heat insulating part of the tobacco heating device of the present invention;

fig. 4 is a schematic view of the lower port of the tobacco heating device of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Outer wall of heating device	2	Upper port
3	Lower port	4	Upper cooling heat insulation piece
				5	Lower cooling heat insulation piece	6	Electric energy input control terminal
7	Phase-change heat storage core	8	Tobacco containing cavity
				71	Outer wall of accommodating cavity	72	Inner wall of the containing cavity
73	Phase change material	74	Packaging material
				75	Heating diaphragm

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a tobacco heating device, include: heating device outer wall, last port, lower port, cooling heat insulation spare, electric energy input control end, the chamber is acceptd to phase change heat storage core and tobacco, the cooling heat insulation spare includes cooling heat insulation spare and lower cooling heat insulation spare, the heating device outer wall with the last port is connected, the heating device outer wall with lower port is connected, go up the port with it is connected to go up the cooling heat insulation spare, down the port with it is connected to cool off the heat insulation spare down, phase change heat storage core is in go up the cooling heat insulation spare and cool off under with between the heat insulation spare, the tobacco accept the chamber with the phase change heat storage core is connected, electric energy input control end set up in lower port.

Referring to fig. 1, an embodiment of the present invention is provided for a tobacco heating device.

Fig. 1 is the utility model discloses a tobacco heating device's assembly schematic diagram, including heating device outer wall 1, upper port 2, lower port 3, go up cooling heat insulating part 4, lower cooling heat insulating part 5, electric energy input control end 6, cavity 8 is acceptd to phase change heat storage core 7 and tobacco. In the embodiment, the heating device outer wall 1 is connected with the upper port 2, the heating device outer wall 1 is connected with the lower port 3, the upper port 2 is connected with the upper cooling heat insulation piece 4, the lower port 3 is connected with the lower cooling heat insulation piece 5, the phase change heat storage core 7 is arranged between the upper cooling heat insulation piece 4 and the lower cooling heat insulation piece 5, the tobacco containing cavity 8 is connected with the phase change heat storage core, and the electric energy input control terminal 6 is arranged at the lower port 3.

In the present embodiment, the outer wall 1 of the heating device of the tobacco heating device, the upper port 2, the lower port 3, the upper cooling heat insulator 4, and the lower cooling heat insulator 5 may be made of a material having a good heat insulating property. Such as stainless steel, metal alloys, and high temperature resistant plastics. The materials of the heating apparatus outer wall 1, the upper port 2, the lower port 3, the upper cooling heat insulator 4, and the lower cooling heat insulator 5 may be the same or different.

It should be noted that, in this embodiment, the phase change heat storage core 7 is separated from the power input control end 6 by the lower cooling heat insulation member 5, so as to ensure that the power input control end operates stably at a temperature below 60 ℃, thereby ensuring the safety of the tobacco heating device. And the space between the phase-change heat storage core 7 and the outer wall 1 of the heating device is a hollow structure so as to prevent heat in the phase-change heat storage core from being conducted to the outside and causing heat loss. And a hole is opened at one side of the cooling and heat insulating member (i.e., the side not in contact with the phase-change heat storage core 7) to facilitate heat exchange. In the tobacco heating device, a plurality of small holes (the specific number and size of the small holes can be determined according to the requirements of users) are arranged on the lower port 3, so that the exchange between the tobacco heating device and the air flow of the surrounding environment and the entering of the fresh air flow in the tobacco smoking process are ensured. The electric energy input control end 6 adopts a general electric energy interface, and the internal programs in the electric energy input control end 6 comprise the functions of temperature control, time reminding, operation prompting and the like. And the tobacco containing cavity in the tobacco heating device is used for placing and heating the tobacco.

In addition, in order to assist understanding of the tobacco heating apparatus in the present embodiment, the following description will be made by way of example.

For example, the non-combustible tobacco is first inserted into the tobacco receiving cavity 8. And to facilitate insertion, in some embodiments the upper port 2 is designed to be tapered, tapering in the direction of tobacco insertion. The electric energy input control terminal 6 is connected to a power supply, and the heating diaphragm 75 heats up according to a preset heating program. The electric energy input control end 6 is provided with a cut-off temperature, when the phase change material 73 is heated to the cut-off temperature, the power supply is automatically cut off, meanwhile, vibration prompt is carried out, and the heating process is completed. The power is supplied to the heat generating diaphragm 75, and the heat generating diaphragm 75 releases heat to complete the preheating of the phase change material 73. The arrangement of the heat generating film 75 is various, and may be one or more. In a particular embodiment, designed as a swiss roll structure, the voids are filled with phase change material 73. The heat conductivity coefficient inside and outside the phase-change heat storage core 7 is inconsistent, and the heat of the phase-change material 73 is preferentially transferred inwards, so that the non-combustible tobacco is heated. The phase-change heat storage core 7 and the heating device outer wall 1 are designed to be hollow structures, and the heating device outer wall 1 can be held by a user without being scalded due to the low heat conductivity coefficient of air. In order to avoid the expansion of the gas during the hollow process caused by heating, holes are designed on the lower cooling heat insulation piece 5 and the lower port 3. The interface is pulled out, and in the process of carrying out the suction experiment, fresh air flows through the small hole arranged on the lower port 3, and the lower cooling heat-insulating part 5 enters the tobacco, carries the suction substance and is sucked by the experimental body. The upper cooling heat insulation piece 4 can ensure that the phase change heat storage core 7 is isolated from the upper port 2, and can cool the pumped gas. When the smoke smell becomes light during the smoking process, the whole heating process is finished.

In this embodiment, the tobacco heating device comprises a heating device outer wall 1, an upper port 2, a lower port 3, an upper cooling heat insulation member 4, a lower cooling heat insulation member 5, an electric energy input control terminal 6, a phase change heat storage core 7 and a tobacco accommodating cavity 8. In the embodiment, the heating device outer wall 1 is connected with the upper port 2, the heating device outer wall 1 is connected with the lower port 3, the upper port 2 is connected with the upper cooling heat insulation piece 4, the lower port 3 is connected with the lower cooling heat insulation piece 5, the phase change heat storage core 7 is arranged between the upper cooling heat insulation piece 4 and the lower cooling heat insulation piece 5, the tobacco containing cavity 8 is connected with the phase change heat storage core, and the electric energy input control terminal 6 is arranged at the lower port 3. Through using phase change material as the heat storage source to adopt the means of built-in heating, solved the long problem of preheating time in the phase change material use, compare with current heater, the temperature is more stable, and heating effect is better, has also avoided current heater when heating, and the great phenomenon of calorific loss takes place.

Further, as shown in fig. 2, the phase change heat storage core 7 includes an accommodating cavity outer wall 71, an accommodating cavity inner wall 72, a phase change material 73, a packaging material 74 and a heating membrane 75, the accommodating cavity inner wall 72 is inside the accommodating cavity outer wall 71, the accommodating cavity inner wall 72 is parallel to the accommodating cavity outer wall 71, the phase change material 73 is placed between the accommodating cavity outer wall 71 and the accommodating cavity inner wall 72, the heating membrane 75 is embedded between the accommodating cavity outer wall 71 and the accommodating cavity inner wall 72, the packaging material 74 is used for packaging an interface between the accommodating cavity outer wall 71 and the accommodating cavity inner wall 72, the accommodating cavity outer wall 71 and the accommodating cavity inner wall 72 are parallel to each other, and the surface area of the accommodating cavity outer wall 71 is greater than that of the accommodating cavity inner wall 72, and the accommodating cavity inner wall 72 is connected to the tobacco accommodating cavity 8.

In this embodiment, a low thermal conductive material (i.e., a material with low thermal conductivity) is used for the outer wall 71 of the receiving cavity, and the low thermal conductive material includes stainless steel, metal alloy, high temperature resistant plastic, and the like. And in some embodiments, the outer wall 71 of the receiving cavity may also adopt a special heat insulation design to reduce the heat loss of the heating device, such as a double-layer design, and a vacuum is set in the middle, that is, the outer wall 71 of the receiving cavity is set as double layers, and the vacuum state in the middle of the double layers is maintained. And the design of the material or structure of the outer wall 71 of the accommodating cavity needs to reduce the heat dissipation so as to ensure the full utilization of the heat generated by the heating diaphragm 75. The structure of the outer wall 71 of the accommodating cavity may include a vacuum structure, an embedded aerogel structure, and a hollow structure. The inner wall 72 of the housing chamber is different from the outer wall 71 of the housing chamber, and the inner wall 72 of the housing chamber is made of a metal material having high thermal conductivity so that the energy stored in the phase change material 73 is released to the object to be heated placed in the tobacco housing chamber 8 through the inner wall 72 of the housing chamber as much as possible. The metal material with high thermal conductivity used for the inner wall 72 of the receiving cavity may include silver, copper, gold, aluminum, and one or more alloys thereof.

In the present embodiment, the phase change material 73 in the heating device is a phase change material, and in order to further reduce the heat loss, a high-temperature and low-temperature phase change material is preferably used, and the phase change temperature range is 50 ℃ to 500 ℃. And the phase change material can be selected from inorganic salts or metal phase change materials. In order to fully utilize the latent heat of phase change generated by the phase change material 73, a metal phase change material having high thermal conductivity is preferable. In addition, in the present embodiment, the number of the heat generating membranes 75 may be one or more, and PTC (Positive Temperature Coefficient) heat generating ceramics, or a polyimide heat generating film, or a resistance heating wire, etc. may be employed.

Among them, the Phase Change Material (PCM-Phase Change Material) refers to a substance that changes its form with a Change in temperature and can provide latent heat. The process of a phase change material changing from a solid state to a liquid state or from a liquid state to a solid state is called a phase change process, and when the phase change material absorbs or releases a large amount of latent heat.

In the embodiment, the phase change heat storage core 7 is designed reasonably, so that the heat loss of the heating device is reduced, and because the phase change material 73 is a phase change material, and the phase change material is a substance which changes the state of the substance and can provide latent heat under the condition of constant temperature, the heat loss of the heating device is also reduced, the energy consumption is saved, and the safety of the heating device is also improved.

Further, the housing chamber outer wall 71 is a material having low thermal conductivity, and the housing chamber outer wall has a vacuum structure, or an embedded aerogel structure, or a hollow structure. In this embodiment, since the housing chamber outer wall 71 is isolated from the heat generated by the heating film 75, the heat generated by the heating film 75 heats the object to be heated (e.g., tobacco) placed in the tobacco housing chamber 8 via the phase change material 73 and the housing chamber inner wall 72. Therefore, in the present embodiment, the outer wall 71 of the housing chamber is made of a material having low thermal conductivity, thereby achieving the above object and reducing the heat loss of the tobacco heating device. In this embodiment, the material with low thermal conductivity of the outer wall 71 of the accommodating cavity may be stainless steel, a metal alloy with low thermal conductivity, or high temperature resistant plastic. The material used to make the outer wall 71 of the receiving cavity only needs to have low thermal conductivity. In order to reduce the heat loss of the heating device.

And the outer wall 71 of the accommodating cavity adopts low heat conduction materials, and can also adopt special heat insulation design or heat insulation design for better heat insulation effect, for example, the outer wall 71 of the accommodating cavity is set to be a double-layer design structure, and the middle of the double-layer design structure is set to be in a vacuum state, namely, a vacuum structure. The outer wall 71 of the containing cavity can be embedded with aerogel, or a hollow structure.

Further, the housing chamber inner wall 72 is made of a metal material having high thermal conductivity. In this embodiment, since the tobacco housing chamber 8 and the housing chamber inner wall of the tobacco heating apparatus are connected, in this embodiment, a highly heat conductive material is used to release the energy stored in the phase change material 73 to the object to be heated in the tobacco housing chamber 8 through the housing chamber inner wall 72 as much as possible, thereby reducing the heat loss. Wherein the high heat conduction material is silver, copper, gold, aluminum or an alloy containing one or more of the silver, the copper, the gold and the aluminum. It should be noted that, in this embodiment, when the accommodating chamber inner wall 72 is manufactured, since the thermal conductivity coefficient of silver, copper, gold, and aluminum is much larger than that of other materials, the high thermal conductivity material adopted by the accommodating chamber inner wall 72 may be silver, copper, gold, aluminum, and an alloy containing one or more of these metals, such as common brass, lead brass, and the like. It should be noted that, in the present embodiment, only the above materials are used for illustration, but the materials are not limited to these materials, and any material satisfying a thermal conductivity greater than a certain value may be suitable for manufacturing the inner wall 72 of the receiving cavity in the present embodiment. In addition, in the present embodiment, the accommodating chamber inner wall 72 is made of a highly heat conductive material, so that heat loss of the tobacco heating device can be reduced, and the efficiency of heating the object to be heated can be improved.

Further, the phase change material 73 is a metal phase change material or an inorganic salt phase change material, and the phase change temperature range of the phase change material 73 is 150-390 ℃. It should be noted that, in the present embodiment, the phase change material has the ability to change its physical state within a certain temperature range. Taking solid-liquid phase change as an example, when the material is heated to a melting temperature, the material generates phase change from a solid state to a liquid state, and in the melting process, the phase change material absorbs and stores a large amount of latent heat; when the phase change material is cooled, the stored heat is dissipated to the environment within a certain temperature range, and reverse phase change from liquid to solid is carried out. In both phase change processes, the stored or released energy is called latent heat of phase change. When the physical state changes, the temperature of the material is almost kept unchanged before the phase change is completed, a wide temperature platform is formed, and although the temperature is unchanged, the latent heat absorbed or released is quite large. Therefore, in this embodiment, a metal phase change material or an inorganic salt phase change material is used as the phase change material in this embodiment, so that the heat generated by the operation of the heating membrane 75 is efficiently transferred to the inner wall 72 of the receiving cavity, and then transferred to the object to be heated in the tobacco receiving cavity 8 through the inner wall 72 of the receiving cavity, thereby reducing the heat loss.

Further, the heating film 75 is a PTC heating ceramic, or a polyimide heating film, or a resistance heating wire, the number of the heating film 75 is one or more, the heating film 75 is embedded into the phase change material 73, and the arrangement mode of the heating film 75 is a swiss coil structure or a multilayer intercalation arrangement. In the present embodiment, the phase change material is preheated by using the heat generating film of the swiss roll structure, so that the preheating time of the phase change material is shortened.

Further, the packaging material 74 is a high temperature non-thermal conductive adhesive, and the temperature of the packaging material is above 800 ℃. In this embodiment, in order to avoid heat loss of the phase change material 73, a high-temperature non-thermal conductive paste is used as the encapsulating material 74.

Further, the phase change heat storage core 7 is separated from the electric energy input control end 6 by the lower cooling heat insulation piece 5, and a hollow structure is arranged between the phase change heat storage core 7 and the heating device outer wall 1. In this embodiment, as shown in fig. 3, fig. 3 is a schematic view of the lower cooling/heat insulating material 5, and holes are formed in the lower cooling/heat insulating material 5 to perform heat exchange. And the phase-change heat storage core 7 and the outer wall 1 of the heating device are in a hollow structure, so that the heat loss of the tobacco heating device is avoided, the phase-change heat storage core 7 is separated from the electric energy input control end 6 through the lower cooling heat insulation piece 5, and the safety of the tobacco heating device is also improved.

Further, as shown in fig. 4, the lower port 3 is provided with a plurality of small holes. It should be noted that in this embodiment, by providing a plurality of small holes in the lower port 3, the exchange of the device with the ambient air flow and the entry of fresh air flow during the tobacco smoking process can be ensured.

Further, the heating apparatus outer wall 1, the upper port 2, the lower port 3, the upper cooling heat insulator 4, and the lower cooling heat insulator 5 are all materials having high heat insulating performance. Such as stainless steel, metal alloys, high temperature resistant plastics, and the like.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. The utility model provides a tobacco heating device, its characterized in that, tobacco heating device includes the heating device outer wall, goes up the port, lower port, cooling heat insulating part, and electric energy input control end, phase change heat storage core and tobacco accept the chamber, cooling heat insulating part includes cooling heat insulating part and lower cooling heat insulating part, the heating device outer wall with the last port is connected, the heating device outer wall with lower port is connected, go up the port with it is connected to go up the cooling heat insulating part, lower port with the cooling heat insulating part is connected down, phase change heat storage core is in go up the cooling heat insulating part with cool off under with between the heat insulating part, the tobacco accept the chamber with phase change heat storage core is connected, electric energy input control end set up in lower port.

2. The tobacco heating device according to claim 1, wherein the phase-change heat storage core includes an outer wall of a receiving chamber, an inner wall of the receiving chamber, a phase-change material, a packaging material and a heating film, the inner wall of the receiving chamber is inside the outer wall of the receiving chamber, the inner wall of the receiving chamber and the outer wall of the receiving chamber are in a parallel state, the phase-change material is placed between the outer wall of the receiving chamber and the inner wall of the receiving chamber, the heating film is embedded between the outer wall of the receiving chamber and the inner wall of the receiving chamber, the packaging material is used for packaging a joint between the outer wall of the receiving chamber and the inner wall of the receiving chamber, the outer wall of the receiving chamber and the inner wall of the receiving chamber are parallel to each other, the surface area of the outer wall of the receiving chamber is larger than that of.

3. The tobacco heating apparatus according to claim 2, wherein the outer wall of the housing chamber is made of a material having low thermal conductivity, and the structure of the outer wall of the housing chamber is a vacuum structure, or an embedded aerogel structure, or a hollow structure.

4. The tobacco heating apparatus according to claim 2, wherein the inner wall of the housing chamber is made of a metallic material having high thermal conductivity.

5. The tobacco heating apparatus according to claim 2, wherein the phase change material is a metal phase change material or an inorganic salt phase change material, and the phase change material has a phase change temperature ranging from 150 ℃ to 390 ℃.

6. The tobacco heating device according to claim 2, wherein the heating film is a PTC heating ceramic, a polyimide heating film, or a resistance heating wire, the number of the heating film is one or more, the heating film is embedded in the phase-change material, and the arrangement of the heating film is a swiss coil structure or a multilayer intercalation arrangement.

7. The tobacco heating apparatus according to claim 2, wherein the sealing material is a high temperature non-heat conductive adhesive, and the sealing material is resistant to a temperature of 800 ℃ or higher.

8. The tobacco heating device according to claim 1, wherein the phase-change heat storage core is separated from the electric energy input control end by a lower cooling heat insulation member, and a hollow structure is formed between the phase-change heat storage core and the outer wall of the heating device.

9. The tobacco heating apparatus of claim 1 wherein said lower port is provided with a plurality of apertures.

10. The tobacco heating device of claim 1, wherein the heating device outer wall, the upper port, the lower port, the upper cooling insulation member and the lower cooling insulation member are all materials with high thermal insulation performance.