CN105077572A - Electric heating smoking device - Google Patents

Abstract

The invention relates to the field of smoking appliances, in particular to an electric heating smoker. It comprises a heating assembly (1), the heating assembly (1) has a sleeve (11), and a cavity (12) for accommodating shredded tobacco is configured in the sleeve (11), and the heating assembly (1) also There is an electric heating core located in the cavity (12), and the electric heating core (13) is arranged at intervals from the inner wall of the cavity (12) for being inserted into the shredded tobacco. Compared with the prior art, the electric heating smoker of the present invention reduces the warm-up time, further reduces power consumption and optimizes smokers' intuitive smoking experience.

Description

An electric heating smoker

technical field

The invention relates to the field of smoking appliances, in particular to an electric heating smoker.

Background technique

In recent years, with the legislative restrictions on the harmfulness of cigarettes at home and abroad, the increasing attention to cigarette fire prevention, and the promulgation and implementation of the "Framework Convention on Tobacco Control", the production and sales of traditional tobacco products have suffered unprecedented impacts. Product innovation Has become the inevitable choice of the tobacco industry. At present, the tobacco industry of various countries in the world has regarded the research and development of smokeless tobacco products as one of the important ways to solve the future development of the tobacco industry.

Smokeless tobacco products mainly include heated smokeless tobacco products, chewing tobacco and snuff. Among them, heated smokeless tobacco products are the focus of research and development by domestic and foreign tobacco companies, and electronic cigarette devices are one of the important research directions. There are quite a few brands of e-cigarettes on the market, but they are basically smoking cessation tools, and the smoking experience is very different from real cigarettes, which is difficult for smokers to accept. The principle of this type of electronic cigarette is to heat and evaporate tobacco extract or substitutes to meet the needs of smokers to a certain extent, so as to achieve the purpose of getting rid of cigarettes and gradually quitting smoking. In recent years, there has been a new smoking method that uses low-temperature heating of shredded tobacco to volatilize the flavored tobacco volatiles in tobacco. This method uses low-temperature heating of tobacco, which significantly reduces the harmful components of cigarettes and the environment. Tobacco smoke, as it becomes a hot spot for smokeless tobacco products.

Patent CN1717186A discloses a smoking system that directly heats shredded tobacco at a low temperature. The shredded tobacco is heated below the ignition point to obtain smoke similar to that of burning cigarettes while reducing the emission of harmful gases. However, the system is difficult to be applied in practice because of its complicated working method.

Patent CN103815546A discloses an electric heating smoker and its control method. It has several difficulties that need to be overcome: 1) Although infrared rays have good penetration, it is difficult to realize an infrared heater that heats inward, or the structure is complicated; 2) After the infrared heater is polluted, the heating effect is poor; 3) Larger volume; 4) The intake damping of ordinary cigarettes is too small, and the smoking feeling is not realistic.

Patent CN104068472A discloses an electric heating smoker and its control method. Among them, the electric heating technology of resistance wire or electric heating film is used. However, because only the inner wall of the cavity is used for heating, the thermal efficiency is not enough, which leads to too long preheating time for heating up to a specific temperature at which the tobacco aroma is fully released, greatly increasing power consumption, and directly affecting the smoker's intuitive smoking experience.

Therefore, there is an urgent need for an electric heating smoker that reduces the warm-up time and power consumption without affecting the intuitive smoking experience of the smoker.

Contents of the invention

(1) Technical problems to be solved

The technical problem to be solved by the present invention is to provide an electric heating smoker which reduces the warm-up time and thus reduces the power consumption without affecting the intuitive smoking experience of the smoker.

(2) Technical solution

In order to solve the above-mentioned technical problems, the present invention provides an electric heating smoker, which includes a heating assembly, the heating assembly has a sleeve, and a cavity for accommodating shredded tobacco is configured in the sleeve, and the heating assembly also has an electric heating element located in the cavity. The heating core, the electric heating core is arranged at intervals on the inner wall of the cavity for being inserted into shredded tobacco.

According to the present invention, the electric heating core is made of nickel-chromium alloy electric heating wire.

According to the present invention, the cavity is inserted into the shredded tobacco section of the cigarette, and the electric heating core is inserted into the shredded tobacco of the shredded tobacco section.

According to the present invention, the electric heating core is configured as a U-shaped electric heating tube, and the arc section of the U-shaped electric heating tube constitutes the protruding end of the electric heating core inserted into shredded tobacco.

According to the present invention, the length of the electric heating core is within the range of 3-5cm, the electric heating core is an equal-diameter tube with a diameter within the range of 0.6-1mm, and the distance between the centerlines of the two parallel sections of the electric heating core is between In the range of 1.5-2mm.

According to the present invention, the heating assembly also has a fixed base, the end wall of the casing is connected to the fixed base, and the end wall is provided with a first through hole, and the electric heating core is connected to the fixed base through the first through hole; the electric heating smoker It also includes a control assembly for controlling the power on and off of the electric heating core, which is connected to the fixed base and is respectively located on both sides of the fixed base with the sleeve.

According to the present invention, the ends of the two parallel sections of the electric heating core away from the arc section are respectively configured as a first power supply interface and a second power supply interface, and the first power supply interface and the second power supply interface are connected with the control circuit board in the control assembly connect.

According to the present invention, a temperature sensor is further arranged in the cavity, and the temperature sensor is attached to the surface of the electric heating core and connected to the fixed base through the first through hole.

According to the present invention, the end wall of the bushing is further provided with a through channel and a damping membrane located in the through channel, wherein the through channel communicates with the cavity and extends laterally through the end wall.

According to the present invention, the through passage includes a second through hole and a third through hole, the second through hole is arranged in parallel with the first through hole and penetrates through the end wall, and one end of the third through hole communicates with the second through hole and extends laterally Through the end wall, wherein the damping membrane is arranged in the third through hole.

(3) Beneficial effects

The technical scheme of the present invention has the following advantages:

In the electric heating smoker of the present invention, the electric heating core is arranged at intervals on the inner wall of the cavity for being inserted into shredded tobacco, thereby constituting an inner core contact type electric heating. Compared with the heating method in the prior art, the contact electric heating of the inner core can reduce the warm-up time, thereby reducing the power consumption without affecting the intuitive smoking experience of the smoker.

In the electric heating smoker of the present invention, the cavity is inserted into the shredded tobacco section of the cigarette, and the electric heating core is inserted into the shredded tobacco of the shredded tobacco section. The electric heating core includes a main body section and a tapered section extending from the main body section. The direction of the main body section pointing to the tapered section is the same as the direction in which the electric heating core is inserted into the shredded tobacco of the shredded tobacco section. The length of the electric heating core is in the range of 3-5cm, the thickness of the main body section is in the range of 0.6-1mm, and the width of the main body section is in the range of 1.5-2mm. The shredded tobacco section of the cigarette stick is subjected to less resistance when inserted, thereby facilitating the insertion of the shredded tobacco section of the cigarette stick. In addition, the electric heating core with the above-mentioned structure has a simple structure, a small volume, and is easy to implement.

In the electric heating smoker of the present invention, the end wall of the sleeve is connected to the fixed base, and the end wall of the sleeve is provided with a first through hole, the electric heating core is connected to the fixed base through the first through hole, and the control assembly is connected to the The base is fixed, and the control assembly and the bushing are respectively located on both sides of the base. Thus, the fixed base isolates the electric heating core from the control assembly, thereby better isolating the heat conduction between the electric heating core and the control assembly, and preventing damage to the elements in the control assembly.

In the electric heating smoker of the present invention, the end wall of the sleeve is further provided with a through channel and a damping film located in the through channel, wherein the through channel communicates with the cavity and extends laterally through the end wall. In this way, the intake damping is simulated through the damping film and the through channel, making the smoking feel more realistic.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the electric heating smoker of the present invention, wherein it is shown that the electric heating smoker is connected with cigarettes;

Fig. 2 is a schematic structural view of the heating assembly in the electric heating smoker in Fig. 1;

Fig. 3 is another perspective view of the heating assembly in the electric heating smoker in Fig. 1, which includes a fixed base and an electric heating core;

Fig. 4 is a schematic diagram of the control principle of the control component.

In the figure: 1: heating assembly; 11: casing; 111: first through hole; 112: second through hole; 113: third through hole; 12: cavity; 13: electric heating core; 131: parallel section; 132: arc segment; 133: first power interface; 134: second power interface; 14: fixed base; 15: temperature sensor; 2: control component; 21: control circuit board; 22: smoking button; 23: power on indicator Light; 24: heating indicator light; 25: voltage detection module; 26: power MOSFET tube; 27: microcontroller; 28: hysteresis comparator; 29: signal converter; 3: power supply component; 31: power supply; 32: switch button ; 4: cigarettes.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Referring to FIG. 1 , an embodiment of the electric heating smoker of the present invention includes a heating assembly 1 . The heating assembly 1 has a sleeve 11 and an electric heating core 13, the sleeve 11 is configured with a cavity 12 for containing shredded tobacco, the electric heating core 13 is located in the cavity 12, and the electric heating core 13 is spaced from the inner wall of the cavity 12 Set for insertion into tobacco.

As known by those skilled in the art, the heating efficiency of the electric heating device in the electric heating smoker directly determines the time for heating the shredded tobacco to the temperature for fully releasing the flavor. In this embodiment, the electric heating core 13 is spaced apart from the inner wall of the cavity 12 to form an inner core contact electric heating. Compared with the heating method in the prior art, the inner core contact electric heating can reduce the preheating time and further reduce the power consumption. Consumption and does not affect the smoker's intuitive smoking experience.

Further, in this embodiment, the cavity 12 is inserted into the shredded tobacco section of the cigarette 4, that is, the cavity 12 accommodates the shredded tobacco in the shredded tobacco section, and the electric heating core 13 is inserted into the shredded tobacco of the shredded tobacco section. Preferably, the length and diameter of the cavity 12 are respectively equal to the length and diameter of the shredded tobacco section of the cigarette, so that the shredded tobacco section can be stably inserted into the cavity 12 . And after the cigarette branch section is inserted into the cavity 12, the filter tip of the cigarette branch 4 is connected with the casing 11.

Specifically, referring to FIG. 2, in this embodiment, the electric heating core 13 is configured as a U-shaped electric heating tube, wherein the U-shaped electric heating tube includes two parallel segments 131 arranged in parallel and a circle connecting the two parallel segments 131. The arc section 132, the arc section 132 of the U-shaped electric heating tube constitutes the protruding end of the electric heating core 13 inserted into the shredded tobacco, that is, the arc section 132 is first inserted into the shredded tobacco when the electric heating core is inserted into the shredded tobacco. The length L of the electric heating core 13 is in the range of 3-5 cm. Further, the electric heating core 13 is a tube with equal diameter, that is, the electric heating core is a U-shaped electric heating tube extending along a U shape with a circular section, and in this embodiment, the diameter is within the range of 0.6-1 mm. The distance W between the centerlines of the two parallel sections 131 of the electric heating core 13 is in the range of 1.5-2mm. With such arrangement, the shredded tobacco section of the cigarette stick is subjected to less resistance when inserted, thereby facilitating the insertion of the shredded tobacco section of the cigarette stick. In addition, the electric heating core 13 with the above-mentioned structure has a simple structure, a small volume, and is easy to realize.

Preferably, the electric heating core 13 is wound by a nickel-chromium alloy electric heating wire. The casing 11 is made of one of three materials: glass fiber, asbestos, and rock wool.

In addition, in this embodiment, the heating assembly also has a fixed base 14 , and the end wall of the sleeve 11 is connected to the fixed base 14 . Moreover, a first through hole 111 is provided on the end wall, and the first through hole 111 penetrates through the end wall along the axial direction of the casing 11 , and the electric heating core 13 is connected to the fixed base 14 through the first through hole 111 . Preferably, the electric heating core is pluggably connected to the fixed base. Of course, the present invention is not limited thereto, and in other optional embodiments, the electric heating core and the fixed base can be connected in other ways known to those skilled in the art.

In addition, in this embodiment, a temperature sensor 15 is also provided in the cavity 12, and the temperature sensor 15 is attached to the surface of the electric heating core 13 for real-time measurement of the temperature of the electric heating core 13, and the temperature sensor 15 Connect with the fixed base 14 through the first through hole 111 .

Further, the end wall of the sleeve 11 provided with the first through hole 111 is also provided with a through channel and a damping membrane located in the through channel, wherein the through channel communicates with the cavity and extends laterally through the end wall. "Lateral" is perpendicular to the axis of the sleeve 11 . In this way, the intake damping is simulated through the damping film and the through channel, making the smoking feel more realistic. However, the contact heating method of the inner core is used to directly heat the shredded tobacco to a specific temperature where the aroma is fully released, combined with the setting of the through channel and the damping film, it overcomes the defects of the traditional smoking method of second-hand smoke and the existing electronic smoking system, and has the advantages of small size, The utility model has the advantages of high heating efficiency, simple structure, economy, reliability and environmental protection.

Specifically, the through passage includes a second through hole 112 and a third through hole 113. The second through hole 112 is arranged parallel to the first through hole 111 and runs through the above-mentioned end wall. One end of the third through hole 113 is connected to the second through hole 112. Communicating with and penetrating laterally through the end wall, the damping film is arranged in the third through hole 113 . Thereby, a through channel communicating with the cavity and extending laterally through the end wall is formed. Wherein, “lateral” means perpendicular to the axis of the casing 11 .

Continuing to refer to FIG. 1 , the electric heated cigarette smoker of the present invention further includes a control assembly 2 and a power supply assembly 3 for controlling the power on and off of the electric heating core.

Specifically, the control assembly 2 is connected to the fixed base 14, and the control assembly 2 and the bushing 11 are respectively located on both sides of the fixed base 14, so that the fixed base 14 isolates the electric heating core 13 from the control assembly 2, and it is better The ground isolates the heat conduction from the electric heating core 13 to the control assembly 2 to prevent the elements in the control assembly 2 from being damaged.

In this embodiment, the control assembly 2 includes a first shell, a control circuit board 21, a smoking button 22, a power-on indicator light 23 and a heating indicator light 24, and the smoking button 22, the power-on indicator light 23 and the heating indicator light 24 are all connected with the control circuit The board 21 is connected, and the temperature sensor 15 and the electric heating core 13 are also connected with the control circuit board 21 . Preferably, the ends of the two parallel sections 131 of the electric heating core 13 away from the arc section 132 are respectively configured as a first power interface 133 and a second power interface 134, and the first power interface 133 and the second power interface 134 are connected with the control The circuit board 21 is connected.

The control circuit board 21 is housed in the first casing, and the smoking button 22 , the power-on indicator light 23 and the heating indicator light 24 are arranged on the first casing. The control circuit board 21 is provided with a voltage detection module 25 , a power MOSFET tube 26 , a single chip microcomputer 27 , a hysteresis comparator 28 , and a signal converter 29 . The voltage detection module 25 indicates that the power-on indicator light 23 is lit, and when the voltage is insufficient, the power-on indicator light 23 flickers; the single-chip microcomputer 27 realizes the control and status indication of the whole electric heating smoker; the hysteresis comparator 28 and the power MOSFET tube 26 are based on the 27 controls the power supply to the electric heating core 13; the signal converter 29 converts the analog output signal of the temperature sensor 15 into a digital temperature value and provides it to the single chip microcomputer 27. Preferably, the temperature sensor 15 is a thermocouple sensor.

The power supply assembly 3 is connected with the control assembly 2, and the power supply assembly 3 and the bushing 11 are located on both sides of the control assembly 2 respectively. The power supply assembly 3 includes a second casing, a power supply 31 and a switch button 32, the power supply 31 is arranged in the second casing, and the switch button 32 is arranged at the end of the second casing.

Wherein, the power supply 31 is connected to the control circuit board, so as to supply power to the electric heating core 13 through the control circuit board. At this time, the fixed base 14 plays a role of isolating the power supply 31 from the electric heating core, thereby protecting the power supply 31 .

Preferably, the power source 31 is a battery. In this embodiment, the power supply 31 is two 18500 rechargeable batteries with a total voltage of 7.4V and a capacity of more than 2000mAh.

The switch button 32 is also connected with the control circuit board, presses the power supply 31 once, and presses the power supply 31 once again. Preferably, the end of the second housing where the switch button 32 is disposed is configured with a base protruding around and recessed in the middle. The switch button 32 is arranged in the recessed part of the base to prevent the switch button 32 from being pressed due to extrusion.

Preferably, the heating assembly 1 , the control assembly 2 and the power supply assembly 3 are all of modular design, and the heating assembly 1 , the control assembly 2 and the power supply assembly 3 are connected to each other through threads.

Briefly describe the control method of the electric heating smoker of the present embodiment below:

When wanting to smoke, at first press the switch button 32, the control circuit board 21 in the control assembly 2 communicates with the power supply 31, the single-chip microcomputer 27 detects the power supply 31, if the power supply 31 power is not enough, then the power-on indicator light 23 flashes once (preferably green light) and then exits Working state: if the power of the power supply 31 is sufficient, then the power-on indicator light 23 keeps the state of constant light (preferably green light), and now the electric heating smoker enters the preheating state. Specifically, the single-chip microcomputer 27 controls the conduction of the power MOSFET tube 26 to energize the electric heating core 13, and the shredded tobacco is heated to a predetermined temperature (preferably, the predetermined temperature is equal to 160°C) through the electric heating core 13. During the preheating process, the single-chip microcomputer 27 continuously Read the temperature data of the signal converter 29. When the temperature data reaches the predetermined temperature, the single-chip microcomputer 27 controls the power MOSFET tube 26 to disconnect, so that the electric heating core 13 is powered off and then stops heating. The heating indicator light 24 continues to light up and enters the waiting mode smoking status. Setting this preheating state can reduce the smoker's waiting time. When the smoking button 22 is pressed, the single-chip microcomputer 27 controls the power MOSFET tube 26 to conduct, the electric heating core 13 starts to heat the shredded tobacco, and the heating indicator light 24 flashes (preferably red). During the heating process, the single-chip microcomputer 27 constantly reads the temperature data of the signal converter 29. When the temperature is higher than the set value (preferably 320° C.), the power supply 31 is cut off, and the heating indicator light 24 goes out, prompting the smoker to smoke. For avoiding that the user does not smoke for a long time and causes the temperature of the cigarette to drop and the smell of cigarettes will not be released normally, when the heating indicator light 24 goes out for more than the set time (preferably 5 seconds), it will automatically enter the preheating state, and the heating indicator light 24 will automatically enter the preheating state. Start to light continuously until the smoking button 22 is pressed for the second time.

The comparison experiment of the heating efficiency of the above-mentioned electric heating smoker is described as follows:

Using the same cigarettes and power consumption, the above-mentioned electric heating smoker, the product of patent CN104068472A and the product of patent CN103815546A (respectively using the electric heating wire on the inner wall of the cavity and the electronic smoking system with infrared heating) were used to measure the heating efficiency of the cigarettes. The comparison, that is, the comparison of the time required for the same cigarette to heat up from 25°C to the upper limit temperature of 320°C, as shown in Table 1:

Table 1

Heating time (seconds) The electric heating smoker of the present embodiment 32 Electric heating smoking system disclosed by CN104068472A 67 Electric heating smoking system disclosed by CN 103815546 A 72

As can be seen from Table 1, the electric heating smoker of this embodiment, due to the use of inner core heating in the structure, increases the heating time from 67 seconds and 72 seconds in the electronic smoking systems disclosed in CN104068472A and CN103815546A to 32 seconds , the heating time is greatly reduced, the power consumption is reduced, and the smoker has a more intuitive experience of normal smoking. Therefore, the electronic smoking system of the present application has achieved better technical effects.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. An electric heating smoker, comprising a heating assembly (1), the heating assembly (1) has a sleeve (11), and a cavity (12) for accommodating shredded tobacco is configured in the sleeve (11), It is characterized by: The heating assembly (1) also has an electric heating core (13) located in the cavity (12), and the electric heating core (13) is spaced from the inner wall of the cavity (12) for insertion into the tobacco. 2. The electric heating smoker according to claim 1, characterized in that: The electric heating core (13) is made of nickel-chromium alloy electric heating wire. 3. The electric heating smoker according to claim 1 or 2, characterized in that, The cavity (12) is used for inserting the shredded tobacco section of the cigarette, and the electric heating core (13) is inserted into the shredded tobacco of the shredded tobacco section. 4. The electric heating smoker according to claim 3, characterized in that: The electric heating core (13) is configured as a U-shaped electric heating tube, and the arc segment (132) of the U-shaped electric heating tube constitutes the protruding end of the electric heating core (13) inserted into the shredded tobacco. 5. The electric heating smoker according to claim 4, characterized in that: The length of the electric heating core (13) is within the range of 3-5cm, the electric heating core (13) is an equal-diameter tube with a diameter within the range of 0.6-1mm, and the two sides of the electric heating core (13) The distance between the centerlines of the parallel segments (131) is in the range of 1.5-2mm. 6. The electric heating smoker according to claim 4, characterized in that: The heating assembly also has a fixed base (14), the end wall of the sleeve (11) is connected to the fixed base (14), and the end wall is provided with a first through hole (111), the The electric heating core (13) is connected to the fixed base (14) through the first through hole (111); The electric heating smoker also includes a control assembly (2) for controlling the power on and off of the electric heating core, which is connected to the fixed base (14) and is located on the fixed base (11) respectively. Both sides of base (14). 7. The electric heating smoker according to claim 6, characterized in that: The ends of the two parallel sections (131) of the electric heating core (13) away from the arc section (132) are respectively configured as a first power supply interface (133) and a second power supply interface (134). The first power interface (133) and the second power interface (134) are connected to the control circuit board (21) in the control assembly (2). 8. The electric heating smoker according to claim 6, characterized in that: A temperature sensor (15) is also provided in the cavity (12), and the temperature sensor (15) is attached to the surface of the electric heating core (13) and passes through the first through hole ( 111) is connected with the fixed base (14). 9. The electric heating smoker according to claim 1, characterized in that: The end wall of the sleeve (11) is also provided with a through channel and a damping film located in the through channel, wherein the through channel communicates with the cavity and extends laterally through the end wall . 10. The electric heating smoker according to claim 9, characterized in that: The through passage includes a second through hole (112) and a third through hole (113), the second through hole (112) is arranged parallel to the first through hole (111) and runs through the end wall, so One end of the third through hole (113) communicates with the second through hole (112) and penetrates laterally through the end wall, wherein the damping film is arranged in the third through hole (113).