CN210275915U - Heat guiding component and low-temperature smoking set thereof - Google Patents

Abstract

The utility model discloses a heat guide part, be in including heat-conducting plate, laminating setting the graphite flake and the phase transition heat pipe of heat-conducting plate both sides, the condensation segment of phase transition heat pipe assemble in the assembly passageway on the heat-conducting plate, the evaporation zone stretches out to outside the heat-conducting plate. The application also discloses a low-temperature smoking set adopting the heat guiding component. This application is through setting up heat guide part in the smoking set shell for the heat that the heating chamber gived off finally flows to the tip of low temperature smoking set, makes the heat that finally transmits the part of holding on the low temperature smoking set shell become few, fine solution the problem that the low temperature smoking set shell scalded the hand.

Description

Heat guiding component and low-temperature smoking set thereof

Technical Field

The utility model belongs to the technical field of smoking articles for use, especially, relate to a heat guide part and low temperature smoking set thereof.

Background

Compared with the traditional cigarette, the heating non-combustion smoking device directly heats the tobacco or nicotine product at the temperature of 220-250 ℃, and the smoke gradually volatilizes after baking, thereby reducing harmful smoke components generated by combustion and thermal degradation of the tobacco in the traditional cigarette.

The heating of the incombustible product can be divided into surrounding heating and center heating in form, and various heating techniques such as ceramic heating, film heating, electromagnetic heating and the like have been developed based on the electric heating principle. In the practical application process, because the heating temperature (220-; moreover, the internal temperature of the product is too high, which may affect the operational stability of the battery, circuit board, etc.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that a heat guide part that can guide the heat to setting for the direction transmission is provided.

The second technical problem to be solved of the utility model is to provide a low temperature smoking set with this heat guide part that can effectively reduce smoking set shell temperature.

In order to solve the first technical problem, the following technical scheme is adopted in the application:

the utility model provides a heat guiding part, includes the heat-conducting plate, the laminating sets up the graphite flake and the phase transition heat pipe of heat-conducting plate both sides, the condensation segment of phase transition heat pipe assemble in the assembly passageway on the heat-conducting plate, the evaporation zone stretches out to outside the heat-conducting plate.

In the scheme, when the heat guide component conducts heat, the heat source is arranged at the evaporation section, when the heat passes through the heat guide component, the evaporation section of the phase-change heat pipe absorbs heat, the phase-change liquid in the phase-change heat pipe is heated, evaporated and vaporized, the condensation section cools and releases heat, one part of the heat released by the condensation section is transferred to the heat conduction plate, and the other part of the heat is transferred to the end part of the heat conduction plate; a part of the heat received by the heat-conducting plate is transferred to the layered graphite sheet, and the other part is transferred to and radiated from the outer edge thereof; the heat that the heat-conducting plate transmitted is finally obstructed to the stratiform graphite piece, carries the heat of receiving along the lamellar structure extending direction of stratiform graphite piece, finally reaches the purpose that the guide heat distributes to setting for the direction.

Further, the evaporation section is in a plane spiral shape.

Further, the evaporation section covers the heat conducting plate and the side end of the graphite sheet facing the heating chamber.

Further, the heat guiding component further comprises a carbon fiber plate arranged on one side of the graphite sheet, which is away from the heat conducting plate, and the evaporation section covers the side end, facing the heating cavity, of the carbon fiber plate.

Further, the heat conducting plate is stacked with multiple layers of graphite sheets.

Furthermore, the phase change heat pipe comprises a closed pipe body and a capillary structure layer tightly attached to the inner wall of the pipe body, and phase change liquid is stored in the capillary structure layer.

In order to solve the second technical problem, the following technical solutions are adopted in the present application:

a low temperature smoking set comprising a housing and the heat directing means, said housing having a heating chamber at one end for loading and heating tobacco products and at the other end said heat directing means directing heat emitted from said heating chamber towards said heating chamber, said evaporator end being directed towards said heating chamber;

the assembly channel is arranged in the middle of one side surface of the heat-conducting plate and along the concave clamping groove extending in the axial direction of the heating cavity.

Furthermore, the phase change heat pipe is in close contact with the inner wall of the clamping groove.

Further, the heating chamber has the first end that is close to heat guide part and with first end is used for inserting relatively tobacco products's second end, be equipped with the heat-generating body fixing base in the first end, be equipped with the heat-generating body on the heat-generating body fixing base, be equipped with on the shell with the cigarette mouth is inserted that the second end through is connected.

Furthermore, a battery assembly for supplying power to the heating body is further arranged in the shell.

The phase change heat pipe comprises an evaporation section, a convection section and a condensation section which are connected in sequence, and the condensation section is far away from the heating cavity.

Compared with the prior art, the utility model discloses the beneficial effect who has lies in:

1. the heat-conducting plate is arranged in the low-temperature smoking set shell, and the phase-change heat pipe is arranged on the heat-conducting plate, the graphite flake is arranged between the heat conducting plate and the shell, and the heat conducting plate and the graphite flake are ensured to be kept in a close state as much as possible, so that the heat diffused from the heating cavity can be greatly absorbed by the evaporation section of the phase-change heat pipe, the phase-change liquid in the phase-change heat pipe absorbs heat and then is evaporated and vaporized, the vaporized phase-change liquid moves to the condensation section far away from the heating cavity through the convection section, re-solidifying into liquid state and releasing heat, diffusing a part of heat released by the condensing section from one end of the smoking set shell far away from the heating cavity to the outside of the smoking set, transferring the other part of heat to the graphite sheet, transferring the heat to the graphite sheet, because the inside special structure of graphite flake, the heat finally flows to the tip of low temperature smoking set along the lamellar structure of graphite flake, fine solution low temperature smoking set shell scald one's hand the problem.

2. The evaporation section is in a plane spiral shape, so that the heat absorption capacity of the phase-change heat pipe can be further improved, and meanwhile, the heat transferred to the heat conduction plate and the graphite sheet can be prevented from flowing back to the interior of the smoking set again from the end; in particular, when the evaporation stage entirely covers the heat-conducting plate and the side of the graphite sheet facing the heating chamber, the backflow of heat can be further prevented.

3. The heat dissipated outside the heating cavity can be quickly and directionally guided out of the smoking set through the heat guiding part, so that the working temperature of the battery assembly can be kept at a lower temperature, and the battery assembly can be prevented from being out of work due to overhigh internal temperature of the smoking set.

Drawings

Fig. 1 is a main sectional view of the present invention;

fig. 2 is a side sectional view of the present invention;

FIG. 3 is an exploded view of the heat directing component of the present invention;

FIG. 4 is a schematic view of the inner layered structure and heat conduction of the graphite sheet according to the present invention;

FIG. 5 is a schematic view of the internal heat flow of the graphite sheet according to the present invention;

fig. 6 is a schematic view of a medium phase variable heat pipe structure of the present invention;

fig. 7 is a schematic view of the heat flow inside the phase change heat pipe of the present invention;

FIG. 8 is a liquid-vapor circulation diagram of the interior of a phase change heat pipe according to the present invention;

fig. 9 is a general view of the heat flow and vapor-liquid circulation in the phase change heat pipe of the present invention.

Detailed Description

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

Referring to fig. 1 and 2, the low-temperature smoking set of the embodiment comprises a housing 1, a heating cavity 2 for loading and heating tobacco products is formed in the housing 1, a tobacco inserting port 3 communicated with the heating cavity 2 is further arranged on the housing 1, and the tobacco products are inserted into the heating cavity 2 through the tobacco inserting port 3 to be heated so as to generate smoke for a user to smoke.

In order to prevent dust and other substances from entering the smoking set from the cigarette insertion opening 3 to contaminate the smoking set, a dust-proof cover (not shown) capable of shielding or opening the cigarette insertion opening 3 may be further provided on the housing 1.

Referring to fig. 1, in one embodiment, the low temperature smoking set of this embodiment is provided with a battery assembly and a heating element 4 fixed in a housing 1, the heating element 4 being used for heating tobacco inserted into a heating chamber 2. The battery pack comprises a battery 5 and a PCB 6, between the battery 5 and the PCB 6, the PCB 6 and the heating element 4 are electrically connected, namely the PCB 6 controls the battery 5 to supply energy to the heating element 4, so as to ensure the heating element 4 to heat, cool and the like, a key 12 is arranged on the shell 1, the key 12 is fixed on the shell 1 through a key ring 13, and is electrically connected with the PCB 6, and a user can control the starting and the shutdown of the low-temperature smoking set through the key 12.

Be equipped with cigarette branch cover 14 in the shell 1, when the low temperature smoking set was used, the inside space that bears tobacco product that forms of cigarette branch cover 14 simultaneously as tobacco product's heating chamber 2, inserts cigarette mouth 3 and cigarette branch cover 14 intercommunication, and the user can insert tobacco product in cigarette branch cover 14 from inserting cigarette mouth 3 department. A heating body 4 is arranged in one end of the cigarette support sleeve far away from the cigarette inserting port 3, and the heating body 4 is fixed on a heating body fixing seat 15, so that most of the heating body 4 is positioned in the heating cavity 2.

The heating element 4 in this embodiment is a heating element 4 of a central heating type, and may be a rod-like heating element 4 or a sheet-like heating element 4, and when in use, the heating element 4 penetrates into a tobacco product, heats a smoking material such as tobacco shreds in a low-temperature smoking set, and generates smoke for a user to smoke.

Referring to fig. 1 and 2, the housing 1 of the low-temperature smoking set is further provided with a heat guiding component for guiding the heat emitted by the heating cavity 2 to one end of the housing 1 far away from the cigarette inserting port 3, and the heat guiding component is arranged at one end of the heating cavity 2 far away from the cigarette inserting port 3.

Referring to fig. 3, specifically, the heat guiding component includes a heat conducting plate 7, graphite sheets 8 closely attached to two sides of the heat conducting plate 7, and a phase change heat pipe 9; the heat conducting plate 7 is provided with an assembly channel 10 for mounting the phase change heat pipe 9. The evaporation section a of the phase-change heat pipe 9 extends to the position of the heating chamber 2 so as to rapidly absorb the heat emitted from the heating chamber 2, and the condensation section b of the phase-change heat pipe 9 is assembled in the assembly passage 10 on the heat-conducting plate 7.

In this embodiment, when the heating element 4 starts to operate, since the heat conducting plate 7 is disposed in the low temperature smoking set case 1, it is preferable that the heat conducting plate 7 is made of a material having a high heat conductivity coefficient, such as an aluminum alloy or a copper alloy. And the heat conducting plate 7 is provided with the phase-change heat pipe 9, the graphite sheet 8 is arranged between the heat conducting plate 7 and the outer shell 1, and the close contact state between the heat conducting plate 7 and the graphite sheet 8 is ensured to be kept as much as possible, so that the heat diffused from the heating cavity 2 can be greatly absorbed by the evaporation section of the phase-change heat pipe 9, the phase-change liquid in the phase-change heat pipe 9 is evaporated and vaporized after absorbing heat, the vaporized phase-change liquid is solidified into liquid and releases heat after moving to the condensation section away from the heating cavity 2, one part of the heat released by the condensation section is diffused to the outside of the smoking set from one end of the outer shell 1 of the smoking set away from the heating cavity 2, the other part of the heat is transferred to the graphite sheet 8, and after the heat is transferred to the graphite sheet 8, because of the special structure in the graphite sheet 8, the heat finally flows to the end part of the lower-temperature smoking set opposite to the smoke, the problem that the low-temperature smoking set shell 1 burns hands is well solved.

As for the thickness and area size of the heat-conducting plate 7 and the graphite sheet 8, those skilled in the art can select the thickness and area size adaptively according to the actual heat-insulating requirement, and in order to ensure the reliability of heat insulation, the graphite sheet 8 should be designed to cover the heat-conducting plate 7 as a whole.

In practice, the tobacco articles may be cigarettes or cartridges or the like, and the heating chamber 2 is constructed and arranged to removably receive the cigarettes or cartridges, that is, the cigarettes or cartridges may be inserted into the heating chamber 2 by a user and removed from the heating chamber 2 by the user after use.

For effectively reducing the temperature of smog, improve and inhale and experience the sense, can also add the condensation segment between the cigarette material section of cigarette and filter tip section, the condensation segment can be designed into the expansion condensation structure.

It can be understood that when the tobacco product adopts a cartridge, the suction nozzle structure is required to be arranged at the cigarette insertion port 3, but the smoking set with the structure needs to be detached from the shell 1 to load the cartridge, and the operation is not very convenient.

The principles of graphite sheet thermal insulation are explained in detail below in conjunction with the atomic structure of the interior of the graphite sheet:

referring to fig. 4, each graphite sheet 8 is a laminated structure as shown in the figure, that is, the bonding force between carbon atoms on each layer is very strong, the bonding density is very high, and is much higher than the bonding force and the bonding density between carbon atoms on each layer, so that, when external heat is to pass through the laminated graphite sheet 8, as shown in the figure, the heat is blocked by heat diffusion in the space between two adjacent layers much weaker than the blocking by layer-by-layer penetration of each laminated structure, so that the heat is dissipated along the extending direction of the laminated structure, and finally most of the heat is transmitted to the edge position of the laminated graphite sheet 8, and the heat penetrating through the laminated graphite is a very small part by layer-by-layer blocking.

Figure 5 is a schematic diagram of the heat dissipation of the graphite sheet in the application of the laminar graphite sheet in a low temperature smoking article, as shown, when heat diffuses into the graphite sheet 8, a portion of the heat moves directly towards the edges of the graphite sheet 8 under the barrier of the graphite sheet 8, and another portion of the heat enters the interior of the graphite sheet 8 (layer-by-layer entry), and further moves towards the edges of the graphite sheet 8 along the particular structure of the interior of the graphite sheet 8, i.e. there is little heat that can eventually penetrate the graphite sheet 8 completely.

It will be appreciated that, in order to improve the heat insulation performance, a plurality of graphite sheets 8 can be stacked on the heat conducting plate 7, and heat insulating material (such as aerogel, vacuum tube, etc.) can be further provided around the heating chamber 2, so that the heat can be prevented from being transferred to the housing 1 by the excellent heat insulation performance of the heat insulating material.

The working principle of the phase change heat pipe will be described in detail below with reference to the specific structure of the heat pipe:

referring to fig. 6, it is conceivable that the phase-change heat pipe 9 includes a sealed pipe body 901 and a capillary structure layer 902 disposed adjacent to an inner wall of the pipe body, and the capillary structure layer 902 stores a phase-change liquid 903 therein. The phase-change heat pipe 9 is divided into an evaporation section (evaporation zone), a convection section (convection zone) and a condensation section (condensation zone) which are connected in sequence, the evaporation section faces the heating cavity 2, and the condensation section is tightly attached to the heat conducting plate 7. The phase change liquid is adsorbed by the capillary structure layer, and when the external temperature changes slightly, the phase change liquid is attached to the capillary structure layer; when the external temperature rises, the temperature inside the phase change heat pipe 9 is higher and higher until the phase change liquid inside the phase change heat pipe vaporizes to form steam, the steam flows to a region with low pressure, namely a condensation section, under the action of air pressure, and is liquefied to form the phase change liquid in the region with low pressure, and the phase change liquid flows to a region with steam generation, namely an evaporation section, to form a circulation, so that a large amount of heat is absorbed and released in the process, and a heat conduction component with excellent effect is formed.

Fig. 7 is the heat flow schematic diagram in the phase change heat pipe 9 of low temperature smoking set during operation, as shown in the figure, when the part of phase change heat pipe 9 is heated, it receives the heat and spreads into, and the heat that spreads into phase change heat pipe 9 is along with the inside liquid vapour conversion of phase change heat pipe 9, is conveyed to the position that phase change heat pipe 9 is not heated to along with vapour liquid conversion from phase change heat pipe 9 diffusion, form a route that the heat gived off.

Fig. 8 is a schematic diagram of vapor-liquid circulation in the phase-change heat pipe 9 in the low-temperature smoking set during operation, and as shown in fig. 7, when a part of the phase-change heat pipe 9 is heated, heat is transferred to the heated part, and the liquid in the part of the phase-change heat pipe 9 is heated and converted into vapor, where the region is an evaporation region (the leftmost section in the orientation shown in fig. 8), the pressure of the evaporation region is increased due to the generation of the vapor, the vapor is pushed to other regions, so that the vapor flows, the region through which the vapor flows is a convection region (the middle section in the orientation shown in fig. 8), and the vapor finally reaches another region (the rightmost section in the orientation shown in fig. 8) of the phase-change heat pipe 9 after passing through the convection region, where the temperature is reduced after the vapor in the phase-change heat pipe 9 enters the. As the liquid in the evaporation zone is changed into steam, negative pressure is formed at the capillary structure of the zone, the liquid in the capillary structure of the adjacent zone is sucked to the evaporation zone, and finally, a steam flow path from the evaporation zone to the convection zone and then to the condensation zone and a liquid flow path from the condensation zone to the convection zone and then to the evaporation zone are formed, so that a closed circulation is formed.

Fig. 9 is a schematic diagram of vapor-liquid circulation and heat flow in the phase-change heat pipe inside the low-temperature smoking set during operation, as shown in the figure, after heat enters the phase-change heat pipe 9, the liquid at the corresponding part is caused to vaporize to form vapor, the evaporation pressure is increased, the vapor flows to a low-pressure area, passes through a convection area to reach a condensation area with the lowest temperature, is condensed back to the liquid in the condensation area, and releases the carried heat from the condensation area; the liquid in the capillary structure of the evaporation area is reduced to form negative pressure, so that the liquid in the convection area and the liquid in the condensation area flow to the evaporation area to form liquid-vapor circulation, and the phase-change heat pipe 9 can rapidly transfer heat in a required mode and direction in the circulation process.

Therefore, the evaporation section is arranged at the position of the heating cavity 2, the condensation area is arranged on the heat conduction plate 7 at one end far away from the heating cavity 2, and the heat emitted by the heating cavity 2 can be guided to one end, far away from the cigarette inserting port 3, of the smoking set shell 1 through the phase change heat pipe 9 in an oriented mode, and then the heat is discharged to the outside from the shell 1 at the end.

In the actual design, because of the different heat production of smoking set with different structures, the person skilled in the art can artificially control the boiling point and the condensation point to meet the heat transfer requirement of smoking set by adjusting the specific proportion of each substance component forming the phase change liquid.

Of course, the heat pipe without the capillary structure layer can be applied in the utility model, and the heat pipe can be selected according to the actual situation.

Referring to fig. 1 and 2, in one embodiment, to further prevent heat from being transferred transversely across graphite sheet 8 to the side of smoking article housing 1, a carbon fiber plate 11 is disposed on the side of graphite sheet 8 facing away from heat conducting plate 7; that is, the graphite sheet 8 and the heat conductive plate 7 are sandwiched between two carbon fiber plates 11.

In addition, because of graphite flake 8 is thin and easy rupture, graphite flake 8 compresses tightly through carbon fiber plate 11 and fixes on heat-conducting plate 7, and graphite flake 8 not only keeps and heat-conducting plate 7 in close contact with, but also closely laminates with carbon fiber plate 11's lateral wall, adopts this kind of mounting structure, utilizes the good shock resistance and the shock resistance of carbon fiber plate 11, protects graphite flake 8, and is difficult for destroying during the installation of graphite flake 8 and after the installation.

Specifically, the phase-change heat pipe 9 is fixedly clamped on the heat conducting plate 7, a buckling position 16 for fixing the heat conducting plate 7 is arranged in the shell 1, and the heat conducting plate 7 is firmly fixed in the shell 1 through the buckling position; the evaporation zone of phase change heat pipe 9 is close to heat-generating body fixing base 15, and when heat-generating body 4 began to work, phase change heat pipe 9 can be very big absorption heat-generating body 4 distribute out to transmit it to the direction of setting for, from reducing the temperature of the inside and surface of low temperature smoking set, avoid the too high influence stability of the inside high temperature of low temperature smoking set, the too high scald hand problem that leads to of surface temperature.

Referring to fig. 3, in the present embodiment, the phase-change heat pipe 9 is fixed in the heat conducting plate 7, the graphite sheets 8 are respectively disposed on two side surfaces of the heat conducting plate 7, and the phase-change heat pipe 9, the heat conducting plate 7 and the graphite sheets 8 are located in two carbon fiber plates 11 together, so that the heat conducting plate 7 and the housing 1 of the low-temperature smoking set sequentially form a layered structure of the graphite sheets 8 and the carbon fiber plates 11. When the low-temperature smoking set works, the phase-change heat pipe 9 and the high-heat-conductivity alloy plate jointly absorb heat emitted by the heating body 4, the phase-change heat pipe 9 transmits the absorbed heat to the heat-conducting plate 7 and the graphite sheet 8, and transmits the heat to one end opposite to one end of the low-temperature smoking set smoke-inserting opening 3 through the heat-conducting plate 7 and the graphite sheet 8, so that the heat is diffused to the outside of the low-temperature smoking set. When the heat guiding component is installed, positioning fixture blocks 17 can be further arranged on the shell between the graphite sheet 8 and the carbon fiber plate 11 and between the carbon fiber plate 11 and the side wall of the shell.

Referring to fig. 2, the present embodiment shows a specific mounting structure of the phase-change heat pipe 9 and the heat conducting plate 7: one or more clamping grooves are formed in one side face of the heat conducting plate 7, the clamping grooves form an installation channel 10, the clamping grooves extend along the axial direction of the heating cavity 2 (the length direction of the heat conducting plate 7) and are evenly distributed on the inner wall of the heating cavity, phase-change heat pipes 9 are arranged in each clamping groove, and the shape of each clamping groove is matched with that of each phase-change heat pipe 9, so that the phase-change heat pipes 9 can be fixed in the clamping grooves.

Of course, the mounting channel 10 can also be provided directly inside the plate 7, but this configuration of the mounting channel 10 is relatively inconvenient to machine. In addition, grooves can be formed in the two opposite sides of the heat conduction plate to form the installation channel 10, and the grooves in the two sides of the heat conduction plate can be designed to be arranged in a staggered mode, so that the thickness of the heat conduction plate can be effectively reduced, and heat conduction is facilitated.

Referring to fig. 1 and 2, in an embodiment, an evaporation section of the low-temperature smoking set phase-change heat pipe 9 of the present embodiment is in a planar spiral shape, and faces one end of the heating chamber 2 where the heating element 4 is disposed, the rest parts (convection section and condensation section) of the phase-change heat pipe 9 are in a vertical tubular shape and ensure a smooth transition connection with the evaporation section, and the convection section and the condensation section of the phase-change heat pipe 9 are integrally clamped in a clamping groove of the heat conducting plate 7.

In addition, through carrying out thermal-insulated setting with the pipe wall of convection current section, like parcel thermal insulation material or spraying insulating layer etc. steam can not condense exothermic when through the convection current section like this, that is to say from the heat that the evaporation zone absorbed, and basically all transmission to condensation segment to can conduct the heat as far as possible to the smoking set tip of keeping away from the heating chamber, and then improve heat-conducting component's heat-sinking capability.

The evaporation zone of this embodiment low temperature smoking set is the spiral helicine epitaxy in plane, can further improve the heat absorption capacity of phase transition heat pipe 9, also can prevent simultaneously that the heat that transmits to heat-conducting plate 7 and graphite flake 8 from this end flows back to inside the smoking set again, especially, when the evaporation zone all covers heat-conducting plate 7, graphite flake 8 and carbon fiber plate 11 and faces the lateral part of heating chamber 2, can further prevent thermal backward flow.

Combine fig. 2, after the equipment is accomplished, the evaporation zone of phase transition heat pipe 9 can cover one side of heat-conducting plate 7, graphite flake 8 and carbon fiber plate 11 simultaneously, because the heat that graphite flake 8 and carbon fiber plate 11's special construction made its self gather can be followed to side department transmission to can the at utmost with heat transfer to the one end relative with low temperature smoking set insertion smoke mouth 3 one end, make its outside that spreads to the low temperature smoking set.

It should be explained here that, in the low-temperature smoking set of the above-mentioned structure, besides the heat transfer from the heat guiding component toward the axial direction side of the heating chamber 2, a part of the heat is transferred from the side of the heat guiding component perpendicular to the axial direction of the heating chamber 2 to the low-temperature smoking set housing 1, and for the purpose of directionally guiding the heat transfer toward the axial direction of the heating chamber 2, a heat isolating layer (not shown in the figure) may be provided on the side wall of the heat conducting plate 7 and the graphite sheet 8 perpendicular to the axial direction of the heating chamber 2, and the heat transfer from the side is prevented by the heat isolating layer, so that the heat transferred by the heat guiding component is substantially entirely guided and transferred to the end of the smoking set opposite to the end of the smoking set inserted into the. Specifically, the heat isolation layer can be made of heat insulation materials such as heat insulation cotton.

The above examples are merely illustrative of the present invention clearly and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims (10)

1. A heat directing component characterized by: set up including the heat-conducting plate, laminating the graphite flake and the phase transition heat pipe of heat-conducting plate both sides, the condensation segment of phase transition heat pipe assemble in the assembly passageway on the heat-conducting plate, the evaporation zone stretches out to outside the heat-conducting plate.

2. A heat directing component as recited in claim 1, wherein: the evaporation section is in a plane spiral shape.

3. A heat directing component as recited in claim 2, wherein: the evaporation section covers the heat conducting plate and the side end of the graphite sheet facing the heating cavity.

4. A heat directing component as recited in claim 3, wherein: the heat guiding component further comprises a carbon fiber plate arranged on one side of the graphite sheet, which is away from the heat conducting plate, and the evaporation section covers the side end, facing the heating cavity, of the carbon fiber plate.

5. A heat directing component as recited in claim 1, wherein: the heat conducting plate is overlapped with a plurality of layers of graphite sheets.

6. A heat directing component as recited in claim 1, wherein: the phase change heat pipe comprises a closed pipe body and a capillary structure layer tightly attached to the inner wall of the pipe body, and phase change liquid is stored in the capillary structure layer.

7. A low temperature smoking set, its characterized in that: comprising a housing and a heat directing component as claimed in any one of claims 1 to 6, the housing having an interior with a heating chamber at one end for loading and heating tobacco products and at the other end with the heat directing component directing heat emanating from the heating chamber towards that end, the evaporation zone being directed towards the heating chamber;

the assembly channel is arranged in the middle of one side surface of the heat-conducting plate and along the concave clamping groove extending in the axial direction of the heating cavity.

8. The low temperature smoking article of claim 7, wherein: the phase change heat pipe is in close contact with the inner wall of the clamping groove.

9. The low temperature smoking article of claim 7, wherein: the heating chamber has the first end that is close to heat guide part and with first end is used for inserting relatively tobacco products's second end, be equipped with the heat-generating body fixing base in the first end, be equipped with the heat-generating body on the heat-generating body fixing base, be equipped with on the shell with the cigarette mouth is inserted to second end through connection.

10. The low temperature smoking article of claim 9, wherein: and a battery assembly for supplying power to the heating body is also arranged in the shell.

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