CN104366697A - Smoking device with heat storage component and combined type smoking system - Google Patents

Abstract

The invention relates to a smoking device with a heat storage component, which is characterized in that it comprises the following components: a casing (1); a heat storage component (2), which is placed inside the casing (1), and the heat storage The component (2) includes: a heat storage material container (5), which defines one or more tobacco product accommodating cavities (10) independently or together with its peripheral parts, and the heat storage material container (5) is placed inside the heat storage material container (5). material; a heat conduction element (7), which includes a first heat conduction section (7a) contained in the heat storage material container (5) and a second heat conduction section (7a) protruding out of the heat storage material container (5) 7b). The smoking device of the present invention can be pluggably connected with an external heating device to form a smoking system, and the phase change material is used to realize heat storage and heat release, and the tobacco product is heated during the heat release process. Therefore, the smoking device of the present invention may not have its own battery or only have a very small battery, and its volume is closer to that of a traditional lit cigarette, which is convenient to use.

Description

Smoking device with heat storage component and combined smoking system

technical field

The invention relates to a smoking device, in particular to a smoking device with a heat storage component.

Background technique

The main feature of heat-not-burn cigarettes is to use an external heat source to heat the tobacco instead of igniting it. Because the heating temperature is much lower than the combustion temperature, it can effectively reduce the harmful components produced by high-temperature combustion and cracking of tobacco, and greatly reduce the release of chemical components in mainstream smoke. According to different heating sources, heat-not-burn cigarettes can be divided into electric heating type, fuel heating type and physical and chemical reaction heating type.

At present, a large number of patents have been reported abroad for heat-not-burn cigarettes. The Chinese patents CN101277622B, CN101277623B, CN1131676C, CN1113620C, CN1287699C, CN100546509C, CN101637308B, and CN102438470B applied by Philip Morris Tobacco Company disclosed electric heating cigarette technology. Chinese patents CN87101955B, CN1068024A, CN87105964A, and CN1059841A disclose fuel-heating cigarette technology, and Chinese patents CN200980102589.3 and CN200980133308.0 applied by Steigmold Co., Ltd. disclose physical and chemical reaction heating cigarette technology.

However, since the heat of electric-heated cigarettes is directly provided by the electric heating element, it takes a long time for the heating element to heat to the set temperature, and the demand for battery capacity is high, resulting in a large volume of the cigarette body; Cigarettes are heated by heat, and the combustion of fuel will introduce other gases into the smoke during the process, affecting the smoking experience of cigarettes; physical and chemical reaction heating cigarettes use chemical reactions to provide heat, and the process of generating heat from chemical reactions is often difficult to control. The stability is not enough. For the above reasons, heat-not-burn cigarette products have not been widely accepted.

In view of the above problems, the present invention provides a smoking device with a heat storage component, which can effectively solve the above problems, so that the volume of the smoking device is greatly reduced and the heating stability is enhanced.

Contents of the invention

A first aspect of the invention relates to a smoking device with a heat storage component, comprising the following components: a housing 1;

A heat storage device 2, which is placed inside the housing 1, and the heat storage device 2 includes:

The heat storage material container 5 defines one or more tobacco product accommodating cavities 10 by itself or jointly with its peripheral components, and the heat storage material is placed in the heat storage material container 5;

The heat conduction element 7 includes a first heat conduction section 7 a accommodated in the heat storage material container 5 and a second heat conduction section 7 b extending out of the heat storage material container 5 .

Wherein, the heat storage material 5 is a reversible phase change material, its state changes from a solid phase to a liquid phase during the heat storage process (that is, the process of receiving heat from the outside of the smoking device), The state change in the process of releasing heat in the tobacco product accommodating cavity is from liquid phase to solid phase. Generally, due to the great latent heat of the solid-liquid phase transition of the material, only a small amount of phase-change material is needed to reserve enough heat to heat the tobacco product and keep the temperature of the tobacco product in the range of, for example, 200-300°C Within the holding time, for example, 1-5 minutes, during this period, the tobacco product volatilizes smoke for the smoker to inhale after being heated. Also because the temperature is constant when the material undergoes a solid-liquid phase transition, it is easy to control the heating temperature of the tobacco product at or below the desired fixed value. The reversible phase change material is any material capable of undergoing a solid-liquid phase change at the working temperature of the heating cigarette (for example, 120-600°C, preferably 150-360°C, more preferably 180-320°C). As a representative example, the reversible phase change material is a combination of one or more metal materials with different melting points, such as various tin alloys available in the industry, whose solid-liquid phase transition temperature can be between 100-300°C It can be freely adjusted by the relative ratio of each metal in the alloy, which is very suitable as the reversible phase change material of the present invention.

In a preferred embodiment of the first aspect, the smoking device with a heat storage device of the present invention further includes the following components:

A power supply system 4, which is placed inside the casing 1;

A control system 3, which is placed inside the housing 1;

Wherein the power supply system 4 is only used to supply power to the control system 3, or the power supply system 4 and the control system 3 are electrically connected to the heat conduction element 7 for the heat release process of the heat storage material Provide power to the heat conducting element 7 in a controllable manner, so that the heat conducting element 7 can also be used as an electric heating element; or, the power supply system 4 and the control system 3 are electrically connected with an optional electric heat preservation element 13, and the electric heat preservation element 13 is electrically connected. The heat preservation element 13 is in thermal contact with the tobacco product containing chamber 10 to controllably power the electric heat preservation element during the exothermic process of the heat storage material so as to generate heat to maintain the tobacco product containing chamber temperature inside.

The power supply system 4 can be powered by a battery or connected to peripheral power supply devices such as USB and mobile power through an interface. In a preferred embodiment, the power supply system is powered by a 3.7-4.2V lithium battery, which is convenient for multiple charging and repeated use of the smoking device. However, it must be pointed out that the power supply system is not a necessary component of the smoking system with heat storage components described in the first aspect of the present invention, and the smoking system with heat storage components may not have any power supply system at all, or, Even if there is a power supply system, the power supply system can only be used to supply power to the control system, and can not be used to supply power to any electric heating element at all. Of course, in a preferred embodiment, the power supply system not only supplies power to the control system, but also supplies power to the heat conducting element or the optional electric heating and heat preservation element.

The control system 3 is used to control the start and stop of the smoking device. The control can be realized through mechanical switches, electromagnetic switches, airflow switches and other devices. In a preferred embodiment, the control system 3 is designed to provide Different heating temperature adjustment and other control functions.

In a more preferred embodiment of the first aspect, the smoking device with a heat storage device of the present invention further includes the following components:

The heat insulation layer 8 is placed between the heat storage material container 5 and the casing 1 . The function of the heat insulation layer is to insulate the heat loss and keep the temperature of the casing 1 at normal temperature so as not to burn the smoker's fingers.

In the first aspect of the present invention, the heat storage material container 5 itself may define a tobacco product accommodating cavity, for example as shown in FIG. 1 below. Alternatively, in the case that the heat storage material container 5 itself does not define a tobacco product accommodating cavity but defines a tobacco product accommodating cavity together with its peripheral components, the heat insulation layer may serve as the peripheral component to communicate with the The heat storage material containers together define a tobacco product containing chamber, for example as shown in FIG. 2 below.

In a preferred embodiment of the first aspect of the present invention, where the heat storage material container is in contact with the tobacco product, a heat conduction layer 6 may also be provided as required to enhance heat transfer from the heat storage material to the tobacco product The heat conduction layer 6 can be made of a material with a thermal conductivity greater than 30W/mK, such as silver, copper, gold, aluminum and other metal materials. Optimally, the heat conduction layer 6 is made of aluminum with a thickness of 0.1-1mm. It is preferably 0.2-0.5 mm, which can ensure that the heat stored in the heat storage material can be fully and rapidly transferred to the tobacco product during the heat dissipation process.

In the first aspect of the present invention, the peripheral components are broadly understood, and any component that can constitute at least a part of the cavity wall or cavity bottom of the tobacco product containing cavity 10 can be called a peripheral component. For example, the peripheral components include the components that have been clearly mentioned in the present invention, and also include other auxiliary components that can be added on the basis of the present invention, as long as their surfaces can constitute the cavity wall or cavity bottom of the tobacco product accommodating cavity 10. At least part of it will do. For example, in a preferred embodiment, the heat insulation layer 8 can serve as the peripheral component, or the housing 1 can also serve as the peripheral component.

A second aspect of the invention relates to a combined smoking system comprising:

A. an external heating device 11, comprising an external heating element 9 powered by an external power supply 12 in the external heating device 11; and

B. The smoking device with a heat storage device according to the first aspect of this aspect, which can be pluggably connected to the external heating device 11, and includes the following components:

shell 1;

A heat storage device 2, which is placed inside the housing 1, and the heat storage device 2 includes:

The heat storage material container 5 defines one or more tobacco product accommodating cavities 10 by itself or jointly with its peripheral components, and the heat storage material is placed in the heat storage material container 5;

and

A heat conduction element 7, comprising a first heat conduction section 7a accommodated in the heat storage material container 5 and a second heat conduction section 7b protruding out of the heat storage material container 5;

Wherein at least a part of the second heat conducting section 7b is in contact with the external heating element 9 so as to transmit heat from the external heating element 9 to the heat storage material.

In a more preferred embodiment of the second aspect, the combined smoking system further comprises the following components:

A power supply system 4, which is placed inside the casing 1;

A control system 3, which is placed inside the housing 1;

Wherein the power supply system 4 is only used to supply power to the control system 3, or the power supply system 4 and the control system 3 are electrically connected to the heat conduction element 7 for the heat release process of the heat storage material Provide power to the heat conducting element 7 in a controllable manner, so that the heat conducting element 7 can also be used as an electric heating element; or, the power supply system 4 and the control system 3 are electrically connected with an optional electric heat preservation element 13, and the electric heat preservation element 13 is electrically connected. The heat preservation element 13 is in thermal contact with the tobacco product containing chamber 10 to controllably power the electric heat preservation element during the exothermic process of the heat storage material so as to generate heat to maintain the tobacco product containing chamber the temperature inside;

Wherein the control system 3 can also be electrically connected with the external power supply 12 and the external heating element 9, to control the opening or closing of the external heating element 9 and adjust the intensity of its heating current, and then adjust the flow from the external heating unit to the external heating element. the heat in the heat storage device.

In a more preferred embodiment of the second aspect, the external heating device 11 can also be used as a cigarette case. For example, it may be similar in shape and size to a packet of a traditional lit cigarette.

The advantages of the present invention are as follows:

1. Minimize the capacity requirements of the power supply system in the heat-not-burn smoking device, thereby reducing the volume occupied by the power supply system, or even not having a power supply system at all. This is because the present invention can directly introduce heat from outside the smoking device with a heat storage component, such as an external heat supply device, and store it in the heat storage component by using the heat conduction element and the heat storage device. At the same time, it is used to heat tobacco products from ambient temperature to smoking temperature. After reaching the fuming temperature, the fuming temperature can be maintained only by the heat stored in the heat storage component, and only when it is really necessary, a little electric energy is used to supply power to the heat conducting element or the electric heating and heat preservation element. Achieve heat preservation. Therefore, in the present invention, the consumption of electric energy is very little, and the electric energy is only limited to keeping warm and/or supplying power to the control system, so the smoking device with heat storage components of the present invention can use a battery with a small volume, which is enough to convert the desired The heating temperature is maintained for a long enough suction time. The battery is usually the most volume-occupied part of traditional electric heating cigarettes, reducing battery capacity or avoiding the use of batteries, so that the smoking device with heat storage components of the present invention can be made very compact and small in size, such as to a size similar to that of traditional lit cigarettes, which makes them more acceptable to traditional smokers.

2. Because the reversible phase change energy storage material changes from solid phase to liquid phase during the heat storage process, its temperature is constant before it completely turns into liquid phase, which can avoid excessive heating of tobacco products and avoid burning. ; And in the exothermic process, before it is completely turned into a solid, its temperature is also constant, so the heating temperature can be kept constant for a relatively long time. Therefore, the present invention is easier to maintain the stability of the heating temperature and avoid large fluctuations in the heating temperature than the traditional electric heating element.

3. The solid-liquid phase change of substances is often accompanied by a large latent heat, so only a small amount of reversible phase change material is needed to achieve a large enough heat storage, which is also conducive to reducing the smoking device of the heat storage component of the present invention volume of. In addition, heat storage materials can withstand tens of thousands of solid-liquid phase transitions and can be used repeatedly for a long time.

4. The smoking device with a heat storage component of the present invention can be pluggably connected with an external heating device to form a combined smoking system. Therefore, the smoking device with a heat storage component can be detached from the external heating device after heat storage The heating device works independently from the external power supply, that is, the smoker can pull it out from the external heating device after it reaches the smoking temperature, and hold it between the fingers for smoking like a traditional lit cigarette, More in line with the smoking habits of smokers. In addition, its shape can also be conveniently made into the same or similar shape as traditional lit cigarettes.

Description of drawings

Fig. 1 is a schematic structural view of the first embodiment of a smoking device with a heat storage component according to the present invention, wherein a part of an external heating device is also shown for ease of understanding.

Fig. 2 is a schematic structural view of the second embodiment of the smoking device with heat storage components of the present invention, wherein a part of the external heating device is also shown for ease of understanding.

Explanation of reference signs:

1. Shell; 2. Heat storage component; 3. Control system; 4. Power supply system; 5. Heat storage material container; 6. Heat conduction layer; 8. Heat insulation layer; 9. External heating element; 10. Tobacco product storage chamber; 11. External heating device; 12. External power supply; 13. Electric insulation element.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings, so that those skilled in the art can practice the present invention according to the accompanying drawings and the description. However, the examples are illustrative only and do not limit the present invention in any way.

As shown in FIG. 1 , the smoking device with a heat storage component of the present invention is plugged into an external heating device 11 , and the two together can be called a combined smoking system. The smoking device with a heat storage component includes a casing 1, a heat storage component 2 located in the casing 1, a power supply system 4 and a control system 3, and a cup-shaped heat storage material container 5 is provided in the heat storage component 2 , so it itself defines a tobacco product accommodating cavity 10 that is close to the size of a traditional cigarette, and the tobacco product used correspondingly can be a traditional lit tobacco product or a columnar or ingot tobacco product, or it can be shredded tobacco Or tobacco dust, as long as it can be put into the tobacco product containing chamber 10. The heat storage material container is filled with a heat storage material, which can be a combination of one or more metal materials with different melting points such as tin alloy, bismuth alloy, lead alloy, etc., which can absorb and store the heat introduced by the heat conduction element 7, and the heat can make The temperature of the tobacco product is kept at 200-300° C. for 1-5 minutes. The heat-conducting element 7 is inserted into the heat-storage material container 5 from the outside of the heat-storage material container, and the section inside the heat-storage material container 5 is called the first heat-conduction section 7a, which is extended to the heat-storage material container 5. The section outside the material container 5 is called the second heat conduction section 7b, the first heat conduction section 7a is in contact with the heat storage material, at least a part of the second heat conduction section 7b is in contact with the external heating element extending from the external heat supply device 11 When the external heating element 9 is energized and heats up, the heat is transferred to the heat storage material via the heat conduction element 7, making it reach the solid-liquid phase transition temperature and a solid-liquid phase transition occurs, and heat storage is carried out at the same time. , the tobacco products in the tobacco product accommodating cavity 10 are also heated simultaneously through the optional heat conducting layer 6 . When the control system 3 detects that the temperature of the heat storage material is just about to exceed the preset solid-liquid phase transition temperature value, it will consider that all solids have changed into liquid, and will send a prompt to the user to remind the user that the heat storage component with The smoking device is pulled from the external heat supply and held between the fingers for smoking. Of course, the control system 3 can also control the current on-off or the current intensity of the external heating element 9, so as to realize a more flexible adjustment method.

Although the power supply system is not necessary, there is a power supply system 4 in the embodiment shown in Fig. 1, which at least supplies power to the control system 3, and of course, can also provide the thermal conduction element 7 or optionally existing Electric insulation part 13 provides power. The power supply system can be powered by batteries or connected to peripheral power supply equipment such as USB and mobile power supply through the interface, and supplies power to the heat conduction element 7 of the heat storage component 2 and the control system 3 during the use of the smoking device, wherein the heat conduction element 7 also doubles as an electric heat preservation device. pieces. In a preferred embodiment, the power supply system is powered by a 3.7-4.2V polymer lithium battery, which is convenient for multiple charging and repeated use of the smoking device.

The control system 3 is used to control the start and stop of the smoking device. The control can be realized by mechanical switches, electromagnetic switches, airflow switches and other devices; the control of the power system of the smoking device can be realized through the voltage regulating circuit and the charging circuit; it can be protected by short circuit The circuit and the over-limit alarm circuit provide protection for the smoking device; the information collection and display system can provide users with information display such as the number of suction ports, the number of remaining suction ports, and battery power. Preferably, the control system 3 is designed to provide control functions such as different heating temperature adjustments according to the individual needs of users. The control system 3 controls the heating temperature or the amount of heat emitted by the heat conducting element 7 by adjusting the power supply voltage or power-on time, and controls the heat storage. The material absorbs the amount of stored heat and adjusts the heating temperature of the heated tobacco product.

This figure 1 also shows a heat insulation layer 8, which is located between the heat storage material container 5 and the casing 1, and is not in contact with both, for reducing the heat stored by the heat storage material to the casing side heat transfer loss. The heat insulation material can include at least one layer of silicate heat insulation paper/cotton, polyurethane/polystyrene/polyvinyl chloride foam, airgel felt, ceramic fiber composite heat insulation felt and other materials. Preferably, the thickness of the heat insulation layer is 0.5-2.5mm, which can keep the temperature outside the shell below 40°C.

Although shown in Fig. 1, the electrical insulation is optional. For example, when the material of the heat-conducting element 7 itself is also suitable as a resistance heating material, the heat-conducting element 7 itself can be used as an electric heat preservation piece without a separate electric heat preservation piece. Of course, a separate electric heat preservation piece can also be provided to provide an auxiliary function of maintaining the temperature of the smoking article in the heat release mode of the heat storage material. When the heat conduction element 7 is also used as an electric heat preservation piece, its material can be an alloy resistance material, such as nickel-chromium alloy, iron-chromium-aluminum alloy, constantan alloy, copper-manganese alloy, preferably nickel-chromium alloy, with a certain The shape is installed in the heat storage material 5, and its shape can be a straight line, a broken line, a spiral, or the like.

Fig. 2 shows another form of smoking device with a heat storage component of the present invention, which is plugged into an external heating device in the figure, and the two together form a combined smoking system. Wherein, only the heat storage material container is set in the form of a closed cylinder, which is filled with heat storage material, and a tobacco product accommodating cavity 10 is defined between its outer wall and the heat insulation layer 8, corresponding to it. The tobacco product is a hollow columnar or ingot-shaped tobacco product, and may also be shredded tobacco or tobacco powder, as long as it can be put into the tobacco product containing cavity 10 . The rest are the same as those shown in FIG. 1 and will not be repeated here.

Claims (10)

1., with a smoking apparatus for heat accumulation parts, it is characterized in that comprising with lower component:

Housing (1);

Heat accumulation parts (2), it is inner that it is placed in described housing (1), and described heat accumulation parts (2) comprising:

Heat accumulating container (5), himself defines separately or jointly defines one or more tobacco product container cavity (10) with its peripheral components, places heat accumulating in described heat accumulating container (5);

Heat conducting element (7), it comprises the first heat conduction section (7a) be contained in described heat accumulating container (5) and the second heat conduction section (7b) reached outside described heat accumulating container (5).

2. the smoking apparatus with heat accumulation parts according to claim 1, is characterized in that it also comprises with lower component:

Power-supply system (4), it is inner that it is placed in described housing (1);

Control system (3), it is inner that it is placed in described housing (1);

Wherein said power-supply system (4) is only for giving described control system (3) power supply, or, described power-supply system (4) and control system (3) are electrically connected with described heat conducting element (7), for giving described heat conducting element (7) power supply to controllably in the exothermic process of described heat accumulating, also can use as electric heating part to make this heat conducting element (7); Or, described power-supply system (4) and control system (3) are electrically connected with optional electric heat preservation member (13), this electric heat preservation member (13) and the thermo-contact of described tobacco product container cavity (10), power to controllably in the exothermic process of described heat accumulating described electric heat preservation member, generate heat to make it to maintain the temperature in described tobacco product container cavity.

3. the smoking apparatus with heat accumulation parts according to claim 1, is characterized in that it also comprises with lower component:

Thermal insulation layer (8), it is placed between described heat accumulating container (5) and described housing (1).

4. the smoking apparatus with heat accumulation parts according to claim 1, is characterized in that described heat accumulating is reversible phase transition material, and its state in heat accumulation process is changed to solid phase and becomes liquid phase, and the state in heating process is changed to liquid phase and becomes solid phase.

5. the smoking apparatus with heat accumulation parts according to claim 1, is characterized in that heat accumulating is the combination of the metal material of a kind of metal or multiple different melting points.

6. the smoking apparatus with heat accumulation parts according to claim 1, is characterized in that described peripheral components is anyly can form the chamber wall of described tobacco product container cavity (10) or the parts at least partially at the bottom of chamber.

7. the smoking apparatus with heat accumulation parts according to claim 3, is characterized in that described peripheral components is described thermal insulation layer (8).

8. a modular smoking system, is characterized in that it comprises:

A. outside heating plant (11), comprises the external heat part (9) of powering by external power source (12) in described outside heating plant (11); With

B. with a smoking apparatus for heat accumulation parts, it can be connected with described outside heating plant (11) plug type, comprises with lower component:

Housing (1);

Heat accumulation parts (2), it is inner that it is placed in described housing (1), and described heat accumulation parts (2) comprising:

Heat accumulating container (5), himself defines separately or jointly defines one or more tobacco product container cavity (10) with its peripheral components, places heat accumulating in described heat accumulating container (5); With

Heat conducting element (7), it comprises the first heat conduction section (7a) be contained in described heat accumulating container (5) and the second heat conduction section (7b) reached outside described heat accumulating container (5); Fitting with described external heat part (9) at least partially of wherein said second heat conduction section (7b) contacts, heat can be passed to described heat accumulating from external heat part (9).

9. modular smoking system according to claim 7, is characterized in that it also comprises with lower component:

Power-supply system (4), it is inner that it is placed in described housing (1);

Control system (3), it is inner that it is placed in described housing (1);

Wherein said power-supply system (4) and control system (3) are electrically connected with described heat conducting element (7), for giving described heat conducting element (7) power supply to controllably in the exothermic process of described heat accumulating, also can use as electric heating part to make this heat conducting element (7); Or, described power-supply system (4) and control system (3) are electrically connected with optional electric heat preservation member (13), this electric heat preservation member (13) and the thermo-contact of described tobacco product container cavity (10), power to controllably in the exothermic process of described heat accumulating described electric heat preservation member, generate heat to make it to maintain the temperature in described tobacco product container cavity;

Wherein said control system (3) is also electrically connected with described external power source (12) and described external heat part (9), to control the unlatching of external heat part (9) or closedown and to regulate the intensity of its heating current.

10. modular smoking system according to claim 7, is characterized in that described outside heating plant (11) doubles as cigarette case.