JP6874079B2 - Heated smoking equipment - Google Patents

Description

The present invention relates to a substitute for tobacco, and more specifically to a heated smoking device.

When the flat plate-shaped heating chip is inserted into the cylindrical smoke tube of the heating type smoking tool, the pressure on the tobacco leaf differs between the central region of the heating chip and both sides, and the tobacco leaf on both sides is pressed with a large force. As a result, both sides of the heated chip come into closer contact with the tobacco leaf, and soot tends to remain.

The technical problem to be solved by the present invention is to provide an improved heated smoking device.

The present invention uses the following technical measures to solve the technical problems. That is, it includes a tubular smoke cylinder and a sheet-shaped heating member that is detachably inserted into the smoke cylinder, and the heating member includes two first sides and second sides that face each other in the width direction. Each of the first side and the second side is provided with a retracting portion that gradually reduces the thickness of the heating member toward the edge in the width direction, and the center line of the heating member is located at the center of the smoke cylinder. The two sides that are located and face each other in the width direction of the heating member constitute a heating type smoking device having the same distance to the inner wall surface of the smoke cylinder.

Preferably, the heating member includes two opposite first and second sides in the thickness direction, and the retracting portion is the first and / or second side corresponding to the first side. A chamfered portion provided on the edge and a chamfered portion provided on the first side and / or the second side edge corresponding to the second side are included, and the chamfered portion includes a bevel or a rounded corner.

Preferably, the chamfered portion is provided on each of the two sides facing each other in the width direction of the first side and the second side, and the retracted portion of the first side and the second side allows the heating member to be formed. Rounded edges or acute-angled edges are formed on the first side and the second side.

Preferably, the chamfered portion is provided on the edge of the first side or the second side of the first side, and the chamfered portion is provided on the edge of the first side or the second side of the second side. The acute-angled sides are formed on the first side and the second side.

Preferably, one end of the heating member is provided with a sharp end that is advantageous for insertion into the heat stick.

Preferably, the heating member includes a sheet-like base material, an insulating layer covering the sheet-like base material, and a conductive path provided in the insulating layer, and the conductive path generates heat after being energized.

Preferably, the sheet-like base material is made of a metal or an alloy, and the retracted portion is formed by stamping.

Preferably, the sheet-like substrate comprises a flat surface located between retracted portions on two opposing sides of the heating member 21, and the conductive path is formed by printing within the area of the flat surface. ..

Preferably, the heating member further includes an isolation layer that covers the outside of the conductive path.

Preferably, the isolation layer is a glaze layer formed by firing a glass glaze, and the outer surface of the heating member is covered with the isolation layer.

By implementing the heated smoking device of the present invention, the following beneficial effects can be obtained. That is, since both sides of the heating member are gradually reduced in thickness, the pressure from both sides of the heating member to the tobacco leaf can be reduced when the heating member is inserted into the heat stick. Therefore, the tobacco leaves on both sides corresponding to the retracted portion are not compressed by a large pressing force, and the pressure of the tobacco leaves at the side ends is relaxed, so that the atomization efficiency of the tobacco leaves is improved. The retracted portion may be gently moved so that the tobacco leaf does not adhere to the side end surface of the heating member 21.

Hereinafter, the present invention will be further described in combination with the drawings and examples.

FIG. 1 is a diagram showing a cross-sectional structure when a heating member of a heating type smoking device according to an embodiment of the present invention is inserted into a smoke cylinder provided with a heat stick. FIG. 2 is a diagram showing the structure of the heating unit of the present invention. FIG. 3 is a diagram showing a cross-sectional structure of the heating member of FIG. FIG. 4 is an exploded view of each layer of the heating unit in the present invention. FIG. 5 is a distribution diagram of a temperature field when the heat stick is heated when the sheet-like base material is metal. FIG. 6 is a diagram showing a case where the width of the heating member of FIG. 2 gradually changes. FIG. 7 is a distribution diagram of a temperature field when the heat stick is heated when the heating member is zirconia.

Specific embodiments of the present invention will be described in detail with reference to the drawings in order to more clearly understand the technical features, objectives and effects of the present invention.

As shown in FIGS. 1 and 2, the heating type smoking device in the preferred embodiment of the present invention includes a tubular chimney 1 and a heating unit 2. The heating unit 2 includes a heating member 21, a lead wire 22, and a mounting seat 23.

As shown in FIGS. 1 to 3, the heating member 21 has a sheet shape and is inserted into the smoke cylinder 1 so that it can be taken out. The heating member 21 includes two first ends A and second ends B facing each other in the length direction, and is provided so that the first end A extends outward. The heating member 21 can be inserted into the chimney 1 of the heating type smoking tool from the first end A.

The heating member 21 includes two first side C and second side D facing each other in the width direction. Each of the first side C and the second side D is provided with a retracting portion 211 that gradually reduces the thickness of the heating member 21 toward the edge in the width direction. The center line of the heating member 21 is located at the center of the chimney 1, and the two opposite sides of the heating member 21 in the width direction have the same distance to the inner wall surface of the chimney 1.

Since both sides of the heating member 21 are gradually reduced in thickness, the pressure from both sides of the heating member 21 to the tobacco leaf can be reduced when the heating member 21 is inserted into the heat stick 3. Therefore, the tobacco leaves on both sides corresponding to the retracting portion 211 are not compressed by a large pressing force, and the pressure of the tobacco leaves at the side end portions is relaxed, so that the atomization efficiency of the tobacco leaves is improved. The retracting portion 211 may be gently moved so that the tobacco leaves do not adhere to the side end faces of the heating member 21.

The heating member 21 includes two first side E and second side F facing each other in the thickness direction. The retracting portion 211 includes a chamfered portion provided on the edges of the first side E and the second side F corresponding to the first side C, and the edges of the first side E and the second side F corresponding to the second side D. Including the chamfered portion provided in.

The chamfered portion includes a bevel or a rounded corner. Chamfered portions are provided on the edges of the first side E and the second side F of the first side C, respectively, and chamfered portions are provided on the edges of the first side E and the second side F of the second side D, respectively. There is. Rounded or acute-angled sides are formed on the first side C and the second side D of the heating member 21 by the retracting portion 211 of the first side C and the second side D.

In other embodiments, the retracted portion 211 is provided with a chamfered portion only on the edge of the first side E or the second side F corresponding to the first side C so that it can be easily formed by one stamping, and the second side is provided. A chamfered portion may be provided only on the edge of the first side E or the second side F corresponding to D, and acute-angled sides may be formed on the first side C and the second side.

The retracting portions 211 on the two opposing sides can be effectively prevented from adhering to the tobacco leaves on the side sides by gently shifting, smoothly polishing, or applying a glaze layer, and the tobacco leaves are pressed. It will be relaxed.

Further, in combination with FIG. 4, the heating member 21 includes a sheet-like base material 212 made of a metal material, an insulating layer 213 covering the sheet-shaped base material 212, and a conductive path 214 provided outside the insulating layer 213. The lead wire 22 is connected to the conductive path 214. Further, the lead wire 22 is pulled out to the outside. When the lead wire 22 receives electric power and the conductive path 214 is energized, the conductive path 214 generates heat and atomizes the tobacco leaves.

Preferably, the base material of the heating member 21 is made of a metal or an alloy. A general-purpose metal such as stainless steel or a titanium alloy may be used as the material for the sheet-shaped base material 212, and stainless steel such as SUS430 or SUS304 is preferable. Usually, the thickness of the sheet-shaped base material 212 is 0.2 to 0.8 mm, and it is low cost because it is formed by stamping molding or wire cutting. Since the retracting portion 211 of the sheet-shaped base material 212 made of a metal material can be formed by stamping, the cost is further saved. Since the size such as the length and width of the heating member 21 corresponds to the diameter and length of the tobacco heat stick used in combination therewith, it is advantageous for sufficient heating of the tobacco leaf.

By using the sheet-like base material 212 made of a metal material as the main body of the heating member 21, high toughness is provided, so that it is possible to effectively prevent the heating member 21 from being torn due to a mechanical impact such as a high temperature for a long time or loading of cigarettes. .. Moreover, since the sheet-like base material 212 made of a metal material has excellent thermal conductivity, the uniformity of the surface temperature of the heating member 21 is guaranteed, which is advantageous for non-combustion / heat-not-burn tobacco to obtain a good mouthfeel.

As shown in FIGS. 5 and 7, from the steady-state simulation experiment, in the case of the same temperature field, the peripheral region of stainless steel exceeding 215 degrees is wider than that of the ceramic heating member 21 such as zirconia. Therefore, the atomization efficiency is further improved and the mouthfeel is improved.

Preferably, the first end A of the sheet-like base material 212 is provided with a sharp end 215 that is advantageous for insertion into the heat stick 3. Since the sharp end 215 can guide the insertion of the heating member 21, the resistance at the time of insertion is reduced.

In order to satisfy the technical requirements for printing the conductive path 214 on the sheet-shaped base material 212, the sheet-shaped base material 212 has a flat surface 2121 located between the retracted portions 211 on two opposite sides of the heating member 21. Including, a conductive path 214 is formed by printing in the region of the flat surface 2121. The retracting portion 211 is provided from two sides facing each other in the width direction of the flat surface 2121 toward the outside.

The insulating layer 213 is formed by coating the surface of the sheet-like base material 212 with a glass paste containing silicon oxide, calcium oxide, and aluminum oxide, and then sintering the sheet at 400 to 1000 ° C. Since the sheet-like base material 212 made of a metal or alloy material is conductive, the insulating layer 213 can prevent a short circuit between the sheet-like base material 212 and the conductive path 214.

The insulating layer 213 coats the sheet-like base material 212 by spraying or printing. The thickness of the insulating layer 213 may be designed based on the pressure resistance requirement between the conductive path 214 and the sheet-like base material 212, and the thickness of the insulating layer 213 is usually less than 0.1 mm.

It is preferable to coat both sides of the sheet-like base material 212 with an insulating layer 213 so that the sheet-like base material 212 made of a metal material does not oxidize during use at a high temperature. The conductive path 214 is located on the insulating layer 213 on one side. The insulating layer 213 may be provided only on one side of the sheet-like base material 212 in order to provide the conductive path 214. Further, when the base material of the heating member 21 is a non-metal / non-conductive material, the insulating layer 213 may be removed.

The conductive path 214 is used as an electric resistance heater and is a conductive layer that can be formed on the insulating layer 213 by a method such as physical vapor deposition, electroplating, or printing.

Preferably, the conductive path 214 includes a heating resistor 2141 and an electrical connection that is electrically connected to the heating resistor 2141. The heating resistance 2141 and the electrical connection portion are arranged along the length direction of the sheet-like base material 212. Further, the conductive electrode 2142 is connected to an external circuit. Preferably, the electrical connection comprises two conductive electrodes 2142 that are electrically connected to the heating resistor 2141.

The lead wire 22 is connected to the conductive electrode 2142, and one end separated from the heating resistance 2141 in the length direction of the heating member 21 is pulled out. That is, the heating resistance 2141 and the conductive electrode 2142 are arranged in the direction from the first end A to the second end B, and the lead wire 22 is pulled out from the second end B.

The heating resistance 2141 is formed by printing with any one of silver-palladium resistor paste, ruthenium-palladium resistor paste, platinum paste, and nickel-based paste, and then sintering. The pattern of the heating resistance 2141 can be flexibly installed, and an appropriate resistance value required by the heating member 21 is obtained in view of the characteristics of the paste and the thickness of the heating resistance 2141. Generally, the resistance value of the heating member 21 is between 0.3 and 2.0Ω. Generally, the thickness of the heating resistor 2141 is less than 0.1 mm, preferably less than 20 um. The conductive electrode 2142 is formed by printing a silver-based paste having a relatively low resistivity and then sintering it.

When the lead wire 22 is energized with an external power source, the heating resistor 2141 is energized and heat can be generated. The lead wire 22 can be connected to the conductive electrode 2142 by high temperature brazing in a protective atmosphere of 600 to 1100 ° C. depending on whether it is a silver / copper welding material, a sterling silver welding material, or a nickel welding material. Further, the lead wire 22 is connected to the conductive electrode 2142 by soldering with a high-temperature solder paste. The applicable temperature at this time is over 300 ° C.

Since the sheet-shaped base material 212 made of a metal material has excellent thermal conductivity, through holes 2122 are provided in a section of the sheet-shaped base material 212 in which the conductive electrode 2142 is located in the length direction in order to prevent heat loss. Since the heat can be blocked by the through hole 2122, the heat transferred to the second end B is reduced.

Since the temperature of the section corresponding to the conductive electrode 2142 is low and it is not possible to sufficiently atomize the tobacco leaves, the chopped tobacco at the site can accumulate and absorb a certain amount of liquid. Therefore, leakage of liquid from the relevant portion can be prevented or reduced.

There is a large temperature gradient in the section of the heating member 21 corresponding to the heating resistance 2141 inserted into the tobacco leaf and the section corresponding to the conductive electrode 2142. The section corresponding to the conductive electrode 2142 has a relatively low temperature and little heat dissipation, which is advantageous for effective use of energy.

In order to shield the heating resistance 2141 from the outside air and further enhance the service life and stability, the heating member 21 further includes an isolation layer 216 covering the outside of the conductive path 214.

The isolation layer 216 is a glaze layer formed by firing a glass glaze, and generally has a thickness of less than 0.1 mm. Both sides of the sheet-like base material 212 are covered with the isolation layer 216. Since the surface of the heating member 21 is smoothed by the glaze layer and the roughness is reduced, the adhesion of tar and liquid after the tobacco leaves are roasted is reduced, and cleaning is facilitated. In other embodiments, only the side where the conductive path 214 is present may be covered with the isolation layer 216.

Preferably, as shown in FIG. 6, the heating member 21 has a treasure sword shape in which the width from the first end A to the second end B is gradually widened so that the heating member 21 can be easily inserted into the heat stick 3. ing. Since the first end A is narrowed, the resistance at the time of inserting the heating member 21 is reduced by combining with the thickening structure of the retracting portion 211. Therefore, it is easy to insert, and further, the situation where the tobacco leaves are concentrated on the side side of the heating member 21 can be effectively reduced. Further, since the bottom portion of the heating member is widened, it is advantageous for improving the strength of the heating member 21, and the heating member is prevented from being broken by inserting and removing the heat stick many times.

Usually, the angle of the dent angle formed by the two opposing sides in the width direction of the sharp end 215 is larger than the angle of the dent angle formed by the two opposite sides in the width direction of the second end B of the heating member 21. In other embodiments, the heating member 21 may be triangular.

As shown in FIG. 2, the mounting seat 23 is covered with the second end B of the heating member 21. That is, the lead wire 22 of the heating member 21 is covered at one end on the side from which it is pulled out, and is also covered at the electrical connection portion. In other embodiments, the mounting seat 23 may be independently mounted on the heating member 21 as an independent member.

The sharp end 215 is located at one end of the heating member 21 on the side separated from the mounting seat 23. The mounting seat 23 and the sharp end 215 are located at both ends of the heating member 21 facing each other. When one end of the heating member 21 on the sharp end 215 side is inserted into the smoke cylinder 1, the mounting seat 23 comes into contact with the outer end of the smoke cylinder 1 to regulate the insertion depth of the heating member 21.

A through hole 2122 is provided in a section in the length direction of the sheet-shaped base material 212 on which the conductive electrode 2142 is located, and the heat transferred to the second end B is reduced, so that the temperature of the mounting seat 23 portion is high. The situation of becoming too much is prevented.

Since no heating region is provided between the end of the second end B where the mounting seat 23 is located and the conductive electrode 2142, the possibility of generating harmful gas is reduced. In addition, the range of material selection for the mounting seat 23 is further expanded, resulting in cost reduction. Usually, the mounting seat is injection-molded with a high molecular polymer, and commonly used materials include polyetheretherketone, high-temperature nylon and the like.

The above technical features can be used in any combination without limitation.

The above is merely an embodiment of the present invention, which does not limit the scope of claims of the present invention. Modifications to the equivalent structure or equivalent flow implemented using the contents of the specification and drawings of the present invention, or direct and indirect operations in other related technical fields, are all of the present invention for the same reason. Included in the scope of protection by.

Claims (9)

Includes a tubular chimney (1) and a sheet-shaped heating member (21) that is detachably inserted into the chimney (1).
The heating member (21) includes two first sides (C) and second sides (D) facing each other in the width direction, and the first side (C) and the second side (D) are heated. Retracting portions (211) are provided to gradually reduce the thickness of the member (21) toward the edge in the width direction.
The center line of the heating member (21) is located in the center of the chimney (1), and the two sides facing each other in the width direction of the heating member (21) have a distance to the inner wall surface of the chimney (1). equivalent der is,
The heating member (21) includes a sheet-shaped base material (212), an insulating layer (213) covering the sheet-shaped base material (212), and a conductive path (214) provided on the insulating layer (213). , The conductive path (214) is a heating type smoking tool, which generates heat after being energized. The heating member (21) includes two first side (E) and second side (F) facing each other in the thickness direction.
The retracted portion (211) includes a chamfered portion provided on the edge of the first side (E) and / or the second side (F) corresponding to the first side (C), and the second side (D). 1), the chamfered portion provided on the edge of the first side (E) and / or the second side (F) corresponding to), and the chamfered portion includes a bevel or a rounded corner. The heated smoking equipment described in. The chamfered portions are provided on the two sides facing each other in the width direction of the first side (E) and the second side (F), respectively, and of the first side (C) and the second side (D). 2. The second aspect of the present invention is that the retracting portion (211) forms rounded or acute-angled sides on the first side (C) and the second side (D) of the heating member (21). The heated smoking equipment described. A chamfered portion is provided on the edge of the first side (E) or the second side (F) of the first side (C), and the first side (E) or the first side (E) of the second side (D) or the second side (D). The second aspect of claim 2, wherein a chamfered portion is provided on the side edge of the second side (F), and acute-angled sides are formed on the first side (C) and the second side (D). Heated smoking equipment. The heating type smoking tool according to claim 1, wherein one end of the heating member (21) is provided with a sharp end (215) that is advantageous for insertion into the heat stick (3). The heated smoking device according to any one of claims 1 to 5, wherein the sheet-shaped base material (212) is made of a metal or an alloy, and the retracting portion (211) is formed by stamping. .. The sheet-like base material (212) includes a flat surface (2121) located between retracted portions (211) on two opposing sides of the heating member (21), and the conductive path (214) is said. The heated smoking device according to any one of claims 1 to 5, wherein the heated smoking device is formed by printing in a region of a flat surface (2121). The heating type smoking device according to any one of claims 1 to 5, wherein the heating member (21) further includes an isolation layer (216) that covers the outside of the conductive path (214). .. The isolation layer (216) is a glaze which is formed by baking a glass glaze, claim 8 the outer surface of the heating member (21) is characterized in that it is covered by the isolating layer (216) The heated smoking equipment described in.

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