JP6998343B2 - Grilled smoking equipment and vacuum insulation type heating unit - Google Patents

Description

The present invention relates to the field of tobacco substitutes, and more specifically to roasted smokers and vacuum insulated heating units.

A vacuum insulation tube is commonly used as a heat insulation method for low-temperature tobacco, and the conventional technique is generally realized by separately providing a heating tube and a vacuum insulation tube. However, since the heating tube is a high-temperature member, in order to maintain the relative fixation between the heating tube and the vacuum insulation tube, it is necessary to fix it with another material that is resistant to high temperatures and has a low thermal conductivity coefficient, and is usually used. High temperature resistant plastic is used.

The separately provided heating tube and vacuum insulation tube have the following adverse effects.

1. 1. Since the heating tube is a high temperature member, it needs to be fixed with another material having high temperature resistance and a low thermal conductivity coefficient, and a high temperature resistant plastic is usually used. However, these materials are very expensive and the overall cost rises significantly.

2. 2. Since the fixing member of the heating tube draws heat from the heating tube, the heat insulation problem is complicated. The vacuum tube can only solve the heat insulation around the heating tube, and the upper and lower heat insulation must be realized by another thin wall member. In addition, it is necessary to take a special heat dissipation design for the relatively poor upper fixing member.

3. 3. Since it is designed individually, it can only solve the heat insulation of the surroundings, and the heat that escapes from both the upper and lower directions increases, so the overall thermal efficiency becomes very low.

4. The two separate members may need to be larger in size, which can significantly increase the overall size.

5. Since both of the two members themselves are expensive, the cost burden as a whole becomes very large.

The present invention is a technical problem to be solved by providing a roasting type smoking device and a vacuum heat insulating type heating unit in response to the above-mentioned drawbacks in the prior art that heat easily escapes and the heat insulating structure is complicated.

The present invention uses the following technical measures to solve the technical problems.

It constitutes a vacuum insulation type heating unit including an outer pipe and an inner pipe.

The outer pipe is laid on the outside of the inner pipe, both ends of the outer pipe are fixedly connected to the outer wall surface of the inner pipe, and a vacuum region is formed between the inner wall surface of the outer pipe and the inner pipe. The inner tube includes a tubular base material and a heating circuit formed on the surface of the tubular base material to generate heat after energization, and the axial position of the heating circuit on the tubular base material is the vacuum. It is located within the axial section where the region exists.

Preferably, the heating circuit is installed for each segment and is electrically connected to the lead wire for each segment, and the heating circuit for each segment is distributed in the axial direction of the tubular substrate. , And / or the heating circuits of each segment are distributed in the circumferential direction of the tubular substrate.

Preferably, the heating circuit is formed on the tubular substrate by printing.

Preferably, the outer wall surface of the inner pipe extending from the outer pipe is provided with a lead wire electrically connected to the heating circuit.

Preferably, the tubular substrate is a low thermal conductive material containing any of stainless steel, titanium alloys, nickel-based alloys and zirconia, ceramics.

Preferably, both ends of the outer pipe and the inner pipe are connected and fixed by vacuum welding.

Preferably, the heating circuit is located inside the tubular substrate and the leads are electrically connected to the heating circuit through the sidewalls of the tubular substrate.

Preferably, the inner tube is formed by rolling.

Preferably, a ceramic material is used for the tubular base material, and an intervening layer is provided inside the tubular base material so as to isolate the ceramics and prevent phase transition and high-temperature ionization, and the heating circuit. Is located outside the intervening layer.

Preferably, the intervening layer is a glass layer.

Preferably, the heating circuit is located outside the tubular substrate and the heating circuit is located within the vacuum region.

Preferably, the outer surface of the inner tube is further provided with wiring connected between the lead wire and the heating circuit, and the wiring is provided from the welding material between the outer tube and the inner tube. The wiring is covered with an insulating layer so as to insulate.

It is a roasting type smoking device and includes the vacuum insulation type heating unit.

By implementing the roasting type smoking device and the vacuum insulation type heating unit of the present invention, the following beneficial effects can be obtained.

Since the tubular base material of the heating unit is not directly related to heating and can reduce the heat dissipation rate from the inner tube to the outside, it is possible to avoid the situation where the heat is diffused to the outside too rapidly. Further, since the tubular base material is not directly related to heating, it is not necessary to provide a dedicated heat insulating structure between the outer pipe and the inner pipe. Therefore, the fixing method between the outer pipe and the inner pipe can be simplified, and the size of the heating and heat insulating portions becomes more compact. This reduces the number of parts and simplifies the structural design, reducing the product volume and making it easier to carry.

Hereinafter, the present invention will be further described by combining drawings and examples.

FIG. 1 is a diagram showing an assembled structure of a heating unit according to the first embodiment of the present invention. FIG. 2 is a diagram showing a cross-sectional structure of the heating unit of FIG. FIG. 3 is an enlarged view of a portion A in FIG. FIG. 4 is a diagram showing an assembled structure of a heating unit according to a second embodiment of the present invention. FIG. 5 is a diagram showing a disassembled structure of the heating unit of FIG. FIG. 6 is a diagram showing a cross-sectional structure of the heating unit of FIG. FIG. 7 is an enlarged view of a portion B in FIG.

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

As shown in FIGS. 1 and 2, the roasting smoker in a preferred embodiment of the present invention includes a heating unit 1. The heating unit 1 includes an outer tube 11 and an inner tube 12.

The outer pipe 11 is laid on the outside of the inner pipe 12, and both ends of the outer pipe 11 are fixedly connected to the outer wall surface of the inner pipe 12. Further, a vacuum region 13 is formed between the inner wall surface of the outer pipe 11 and the inner pipe 12. Since the vacuum region 13 can exert a heat insulating effect, the situation where the heat of the inner pipe 12 is diffused to the outside is prevented.

The inner tube 12 includes a tubular base material 19 and a heating circuit 14 formed on the surface of the tubular base material 19 and generating heat after energization. The axial position of the heating circuit 14 in the inner pipe 12 is located within the axial section where the vacuum region 13 exists.

When the heating circuit 14 is energized, heat is generated, and the low-temperature cigarette inserted in the inner tube 12 can be roasted and heated. Since the tubular base material 19 is not directly related to heating and can reduce the heat dissipation rate from the inner tube 12 to the outside, it is possible to avoid the situation where the heat is diffused to the outside too rapidly. Further, since the tubular base material 19 is not directly related to heating, it is not necessary to provide a dedicated heat insulating structure between the outer tube 11 and the inner tube 12. Therefore, the fixing method between the outer pipe 11 and the inner pipe 12 can be simplified, and the size of the heating and heat insulating portions becomes more compact. This reduces the number of parts and simplifies the structural design, reducing the product volume and making it easier to carry.

Since a low heat conductive material may be used for the tubular base material 19 inside, the product cost is lowered and the heat conduction coefficient is lowered. As the material of the tubular base material 19, any one of stainless steel, titanium alloy, nickel-based alloy, zirconia, and ceramics may be included. Since the heating unit 1 has little heat dissipation to the outside and the temperature at the contact point with other members is low, the heat insulation design is simplified.

The heating circuit 14 of the inner pipe 12 is installed for each segment, and is electrically connected to the lead wire 15 for each segment. The heating circuit 14 of each segment may be distributed in the axial direction of the tubular base material 19 or may be distributed in the circumferential direction of the tubular base material 19. Further, the heating circuit 14 may be distributed in both the axial direction and the circumferential direction. By installing the heating circuit 14 for each segment, it is possible to heat each segment, so that the object to be heated is not completed at once, but is heated for each segment in order.

Preferably, the heating circuit 14 is formed on the tubular substrate 19 by printing. This improves production efficiency and reduces costs. In other embodiments, the heating circuit 14 may be glued, welded or fitted to the inner tube 12.

A lead wire 15 electrically connected to the heating circuit 14 is provided on the outer wall surface of the inner pipe 12 extending from the outer pipe 11 so that the heating circuit 14 can be easily connected to the external power source. This makes it possible to connect to an external power source via the lead wire 15 and supply electricity to the heating circuit 14. Further, each segment of the heating circuit 14 can be individually connected to a power source so that the heating effect can be controlled for each segment.

Both ends of the outer pipe 11 and the inner pipe 12 are connected and fixed by vacuum welding in a vacuum environment. This makes it possible to simplify the assembling process of the outer pipe 11 and the inner pipe 12, and it is not necessary to consider heat dissipation from the inner pipe 12 to the outside at the welding position.

As shown in the combination of FIGS. 1 to 3, in some embodiments, the heating circuit 14 is located inside the tubular substrate 19 and the lead wire 15 is located outside the inner tube 12. The lead wire 15 penetrates the side wall of the inner pipe 12 and is electrically connected to the heating circuit 14.

Preferably, the inner tube 12 is formed by rolling. After forming the heating circuit 14, the heating circuit 14 may be positioned in the inner tube 12 by rolling it together with the tubular base material 19.

In this embodiment, a ceramic material is used for the tubular base material 19. An intervening layer for insulation and heat insulation is provided inside the tubular base material 19, and the heating circuit 14 is provided outside the intervening layer. Normally, the intervening layer is a glass layer, which prevents the size change of the ceramic layer due to the phase transition of the ceramic layer in the inner tube 12 and the superconductivity of the ceramic material due to high temperature ionization. Since the tubular base material 19 made of ceramic material can reduce the heat dissipation rate to the outside, the heating effect on low-temperature tobacco is improved. Further, in other examples, the above-mentioned other materials may be used for the tubular base material 19.

As shown in the combination of FIGS. 4-7, in another embodiment, the heating circuit 14 is located outside the tubular substrate 19 and the heating circuit 14 is located within the vacuum region 13. .. In this case, the tubular base material 19 may be formed directly into a tubular shape, and the heating circuit 14 may be provided on the outside of the tubular base material 19 which is formed into a tubular shape, or the tubular base material 19 may be formed by rolling the tubular base material 19. The heating circuit 14 may be provided on the tubular base material 19 before or after the roll. Regardless of whether the heating circuit 14 is provided inside or outside the inner tube 12, the material of the tubular base material 19 may be the same in either case.

The heating circuit 14 is connected to the lead wire 15 and cannot be energized unless it is drawn from the vacuum region 13. Therefore, a wiring 16 connected between the lead wire 15 and the heating circuit 14 is further provided on the outer surface of the inner pipe 12. Since the wiring 16 is covered with the insulating layer 17, the wiring 16 can be insulated from the welding material 18 between the outer pipe 11 and the inner pipe 12, and a short circuit with the welding material 18 is avoided.

In addition, each of 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 the claims of the present invention. Any modification of the equivalent structure or equivalent flow carried out by the contents of the specification and drawings of the present invention, or any direct and indirect operation in other related technical fields, is protected by the present invention for the same reason. Is included in the range of.

Claims (10)

In the vacuum insulation type heating unit (1) including the outer pipe (11) and the inner pipe (12),
The outer pipe (11) is laid on the outside of the inner pipe (12), both ends of the outer pipe (11) are fixedly connected to the outer wall surface of the inner pipe (12), and the outer pipe (11) is connected. A vacuum region (13) is formed between the inner wall surface of the inner wall surface and the inner pipe (12).
The inner tube (12) includes a tubular base material (19) and a heating circuit (14) formed on the surface of the tubular base material (19) to generate heat after energization, and the tubular base material (19). ), The axial position of the heating circuit (14) is located within the axial section where the vacuum region (13) exists .
The outer wall surface of the inner pipe (12) extending from the outer pipe (11) is characterized in that a lead wire (15) electrically connected to the heating circuit (14) is provided. Heating unit. The heating circuit (14) is installed for each segment and is electrically connected to a lead wire (15) for each segment, and the heating circuit (14) of each segment is a tubular base material (19). 1), and / or the heating circuit (14) of each segment is distributed in the circumferential direction of the tubular substrate (19). Vacuum insulation type heating unit (1). The vacuum insulation type heating unit (1) according to claim 1, wherein the heating circuit (14) is formed on the tubular base material (19) by printing. The vacuum insulation type heating unit according to claim 1, wherein the tubular base material (19) is a low heat conductive material containing any one of stainless steel, titanium alloy, nickel-based alloy, zirconia, and ceramics. 1). The vacuum insulation type heating unit (1) according to any one of claims 1 to 4 , wherein both ends of the outer pipe (11) and the inner pipe (12) are connected and fixed by vacuum welding. The heating circuit (14) is located inside the tubular base material (19), and the heating circuit (14) is formed on the outer wall surface of the inner tube (12) extending from the outer tube (11). A lead wire (15) electrically connected to the lead wire (15) is provided, and the lead wire (15) penetrates the side wall of the tubular base material (19) and is electrically connected to the heating circuit (14). The vacuum insulation type heating unit (1) according to claim 5 , wherein the heating unit (1) is provided. The vacuum insulation type heating unit (1) according to claim 6 , wherein the inner tube (12) is formed by rolling. 5. The fifth aspect of the present invention, wherein the heating circuit (14) is located outside the tubular substrate (19), and the heating circuit (14) is located inside the vacuum region (13). Vacuum insulation type heating unit (1). A lead wire (15) electrically connected to the heating circuit (14) is provided on the outer wall surface of the inner pipe (12) extending from the outer pipe (11), and the inner pipe is provided. A wiring (16) connected between the lead wire (15) and the heating circuit (14) is further provided on the outer surface of the (12), and the wiring (16) is connected to the outer pipe (11). The vacuum according to claim 8 , wherein the wiring (16) is covered with an insulating layer (17) so as to insulate from the welding material (18) between the inner pipe (12) and the inner pipe (12). Insulation type heating unit (1). A roasting type smoking device comprising the vacuum insulation type heating unit (1) according to any one of claims 1 to 9 .

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