Miniaturized heating cigarette smoking set capable of reducing surface temperature

Abstract

The utility model discloses a miniaturized heating cigarette smoking set capable of reducing the surface temperature. Comprising a heating cavity used for containing an aerosol generating substance, a heating system arranged in the heating cavity, a battery cell used for providing energy for the heating system, a control system used for connecting and controlling the heating system and the battery cell, and a supporting system used for fixing all parts and facilitating holding of a user. The supporting system is provided with a heat insulation area for reducing outward diffusion of heat in the heating cavity on the outer side of the heating cavity, and a heat conduction system which is connected with the heating system and the heating cavity and conducts and dissipates heat generated by the heating system and the heating cavity is arranged in the portion, used for being held by a user, of the supporting system. The device serves as a portable electronic product, the portability of the device requires that the size of the product is as small as possible, and the device strives to achieve balance in demand contradictions by reducing the surface temperature of the product through the design of heat insulation, heat conduction and heat dissipation in a small product space.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tobacco heating cigarette smoking set, in particular to a miniaturization heating cigarette smoking set with reduced surface temperature. BACKGROUND

[0002] The heating cigarette smoking set is a kind of device, which converts power into heat, heats aerosol generator and provides specific heat in a specific time, so that aerosol generator generates aerosol.In the heating process, aerosol generator can generate aerosol at a temperature much lower than its ignition point, and it is widely accepted by foreign consumers because it releases less harmful substances than traditional cigarettes.As a portable consumer product, miniaturization is an inevitable trend, but because its core function is to provide heat for aerosol generator, part of the heat will be transferred to the surface of the product contacted by the user, resulting in high surface temperature of the product and affecting user experience. SUMMARY

[0003] The utility model solves the problem of the prior art and provides a miniaturization heating cigarette smoking set with reduced surface temperature, which is designed for heat insulation, heat conduction and heat dissipation, and is applied to a miniaturization heating cigarette smoking set.The set is used with aerosol generator cigarettes to generate aerosol.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a miniaturization heating cigarette smoking set with reduced surface temperature, comprising a heating cavity for accommodating aerosol generator, a heating system arranged in the heating cavity, an electric core for providing energy to the heating system, a control system for connecting and controlling the heating system and the electric core, and a support system for fixing each component and facilitating the user to hold.

[0005] In this embodiment, the support system includes an outer shell in contact with the user, a heating cavity support forming the heating cavity, and an inner support frame fixing each component, the gap between the outer wall of the heating cavity support and the inner wall of the outer shell forms a heat insulation zone, the heat insulation zone is filled with a heat insulation layer, and the heat conduction system is arranged in the holding end of the outer shell.

[0006] In this embodiment, the heat insulation layer is made of a material with low thermal conductivity, including aerogel, cork, foamed plastic, inert gas or vacuum insulation device.

[0007] In the embodiment, the heating system comprises a heating resistor arranged in the middle of the heating cavity, and a first support and a second support coaxially arranged at the bottom of the heating resistor, and the heating resistor is clamped and fixed in the first center hole of the heating cavity support through the cooperation of the first support and the second support.

[0008] In the embodiment, the heat conduction system comprises a heat conduction support, one end of the heat conduction support is in close contact with the heating cavity support and the bottom of the second support, and the other end extends along the axial direction to the holding end of the shell and is in contact with the inner wall of the shell.

[0009] In the embodiment, the heat conduction support has a gap between the outermost side of the end in contact with the heating cavity support and the shell, forming an empty area.

[0010] In the embodiment, the heat conduction support is provided with a plurality of heat dissipation fins extending in the circumferential direction arranged in the axial direction on the side close to the holding end of the shell, and the heat dissipation fins are in contact with the inner wall of the shell.

[0011] In the embodiment, the heat conduction support encloses a heat dissipation cavity in the shell, and a driven heat dissipation device is installed in the heat dissipation cavity.

[0012] In the embodiment, the driven heat dissipation device comprises a heat dissipation fan.

[0013] In the embodiment, the driven heat dissipation device comprises a motor, a first fan and a second fan, the motor is a double-output shaft motor, the two output shafts of the motor are coaxially arranged, and the first reduction box and the second reduction box are respectively installed on the two output shafts, the first fan is installed on the output end of the first reduction box, and the second fan is installed on the output end of the second reduction box.

[0014] With the above structure, the device has the following advantages:

[0015] 1. On the one hand, the device uses heat insulation means to reduce the temperature of the shell in the area where the heating cavity is located, and on the other hand, it uses heat conduction means to disperse and transfer the heat concentrated in the heating area to a larger surface area of the shell, thereby reducing the local temperature of the shell and improving the heat dissipation effect; through the double means of heat insulation and heat conduction, not only the heat conduction of the heating cavity with large heating capacity is reduced, but also the excess heat is conducted to the shell holding part, the area of the shell holding part is utilized to disperse the accumulated heat and prevent the local surface temperature from being too high.

[0016] 2. The heat insulation system of the device can be arranged as a specific space gap to form a heat insulation area, which is filled with air or filled with a heat insulation layer with low thermal conductivity and high specific heat capacity, thereby further delaying the time of heat reaching the shell during the use cycle of the user, on the one hand, more energy can be effectively supplied to the aerosol generator to ensure the utilization efficiency of energy consumption, and on the other hand, the temperature of the shell is prevented from being too high.

[0017] 3. The heat conduction system comprises a heat conduction support, and the heat conduction support is provided with a plurality of heat dissipation fins extending in the circumferential direction and arranged in the axial direction on the side close to the holding end of the shell; the heat dissipation fins are in contact with the inner wall of the shell, so that heat is conducted to the shell through the heat dissipation fins; since the protrusions of the heat dissipation fins reduce the contact area between the shell and the heat conduction support per unit area, the heat received per unit area is reduced, so that the total heat conduction area of the total conduction heat conducted to the shell is increased, and local heat accumulation of the shell is avoided, so that the local surface temperature is not too high.

[0018] 4. The device is also provided with an active heat dissipation device in the heat dissipation cavity; when it is necessary to improve the heat conduction effect, the motor is started to accelerate the airflow velocity in the area where the heat dissipation cavity is located, so that a pressure difference is formed, and the local heat accumulated by the heat generating system is distributed to the whole space of the appliance and even to the outside of the appliance.

[0019] In summary, the heating cigarette appliance of the present application is a kind of portable electronic product, and the portability requires that the product is as small as possible in size; the device reduces the surface temperature of the product in a small product space through heat insulation, heat conduction and heat dissipation design, and strives to achieve balance in the demand contradiction. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 is a structural schematic view of the first embodiment of the present application;

[0021] Figure 2 Fig. 2 is a use state view of the present application after an aerosol generating object is inserted;

[0022] Figure 3 Fig. 3 is a schematic view of the heat conduction direction of the present application;

[0023] Figure 4 Fig. 4 is a schematic view of the external structure of the heat conduction support of the present application;

[0024] Figure 5 Fig. 5 is a structural schematic view of the second embodiment of the present application.

[0025] In the figure: 1, support system; 11, heat generating cavity support; 12, shell; 13, inner support frame; 15, heat generating cavity; 2, heat generating system; 21, heat generating resistor; 22, first support; 22, second support; 3, heat insulation layer; 4, control system; 41, main circuit board; 42, soft circuit board; 43, electrode circuit board; 44, charging interface; 45, button; 46, button support; 5, battery cell; 6, heat conduction system; 61, heat conduction support; 611, heat dissipation fin; 62, empty area; 63, motor; 64, first speed reducer; 65, first fan; 66, second speed reducer; 67, second fan; 7, aerosol generating object. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0027] In addition, the technical solutions in the various embodiments of the present application can be combined with each other, but must be based on the fact that a person skilled in the art can realize them. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope of the present application.

[0028] As shown in the accompanying drawings, Figures 1 to 5 The present application provides a miniaturized heating cigarette smoking set for reducing surface temperature, which comprises a heating cavity 15 for accommodating aerosol generating objects 7, a heating system 2 arranged in the heating cavity 15, an electric core 5 for providing energy for the heating system 2, a control system for connecting and controlling the heating system 2 and the electric core 5, and a support system 1 for fixing each component of the set and facilitating the user to hold. In the embodiment, the aerosol generating objects 7 refer to cigarette rods.

[0029] The support system 1 is provided with a heat insulation layer 3 outside the heating cavity 15 to reduce the outward diffusion of heat in the heating cavity 15. The support system 1 is provided with a heat conduction system 6 connected with the heating system 2 and the heating cavity 15 in the part for the user to hold, which conducts and dissipates the heat generated by the heating system 2 and the heating cavity 15. Embodiment

[0030] The present embodiment is suitable for the design of a miniaturized heating cigarette set with extremely compact space. Referring to Figures 1 to 4 The support system 1 of the present embodiment comprises an outer shell 12 in contact with the user, a heating cavity support 11 forming a heating cavity, and an inner support frame 13 for fixing each component. The outer shell 12 and the heating cavity support 11 are coaxially arranged, and one end of the heating cavity support 11 is in interference connection with the inner wall of one end of the outer shell 12 and the end faces are aligned with each other. The other end of the heating cavity support 11 is a flange end, and the other end of the outer shell 12 is a holding end. A gap is provided between the outer wall of the heating cavity support 11 and the inner wall of the outer shell 12 to form a heat insulation zone, and the heat insulation zone is filled with a heat insulation layer 3. The heat conduction system 6 is arranged in the holding end of the outer shell 12.

[0031] The heating system 2 comprises a heating resistor 21 arranged in the middle of the heating cavity, and a first support 22 and a second support 23 coaxially arranged at the bottom of the heating resistor 21. The flange end of the heating cavity support 11 is provided with a first center hole, the outer diameter of the first support 22 matches the inner diameter of the first center hole, the first support 22 is provided with a second center hole, the outer diameter of the second support 23 matches the inner diameter of the second center hole, and the bottom of the heating resistor 21 is supported on the second support 23. The heating resistor 21 is clamped and fixed in the first center hole of the heating cavity support 11 through the cooperation of the first support 22 and the second support 23.

[0032] The heat conduction system 6 comprises a heat conduction support 61, one end of the heat conduction support 61 is in close contact with the bottom of the heating cavity support 11 and the second support 23, and the other end extends along the axial direction to the holding end of the shell and is in contact with the inner wall of the shell. A gap is formed between the outermost side of the heat conduction support 61 in contact with the heating cavity support 11 and the shell 12 to form a clearance area 62. The heat conduction support 61 is provided with a plurality of heat dissipation fins 611 arranged in the axial direction and extending in the circumferential direction on the side close to the holding end of the shell. The heat dissipation fins 611 are in contact with the inner wall of the shell 12.

[0033] The inner support 13 is arranged at the holding end of the shell 12, and the inner support 13 is used to fix the control system 4. The control system 4 comprises a main circuit board 41, an electrode circuit board 43, a charging interface 44, a key 45, and a soft circuit board 42. The soft circuit board 42 connects the main circuit board 41, the electrode circuit board 43, and the charging interface 44 to realize current communication. The key 45 is electrically connected with the main circuit board 41. The key 45 is installed on the shell 12 through a key support 46. The shell 12 further has an electric core 5 installed therein. The heating resistor 21 and the electric core 5 are connected with the main circuit board 41. The main circuit board 41 successively fixes and manages the output energy of the electric core 5, controls the electric core 5 to supply power to the heating resistor 21, and realizes heating.

[0034] There are three main ways of heat transfer, namely heat conduction, heat radiation, and heat convection. In the use scenario of the heated cigarette device, the device is usually used for about four minutes at a time. Considering the time period, the heat transferred to the product shell 12 to cause the temperature rise of the shell 12 is mainly through heat conduction, which is perceived by the consumer. Therefore, this embodiment mainly focuses on how to utilize heat conduction in the design to reduce the surface temperature rise of the product shell 12.

[0035] This embodiment mainly reduces the temperature of the surface of the shell 12 from two aspects.

[0036] 1. The temperature of the shell in the area where the heating cavity is located is reduced by using thermal insulation.

[0037] After the user puts the aerosol generating article 7 into the aerosol generating article 7 accommodating cavity, the heating resistor 21 enters the aerosol generating article 7 at the part of the accommodating cavity body, and the user gives a command to start heating by pressing the button 45. The heat generated by the heating resistor 21 is mainly transferred to the aerosol generating article 7 by heat conduction, but some of the heat is also transferred to the shell 12 through the heating cavity support 11 by heat conduction. See Figure 3 The part of the heating resistor 21 that extends into the aerosol generating article 7 is sequentially transferred to the shell 12 through the aerosol generating article 7, the heating cavity support 11, and the heat insulation layer 3, and the other part of the heating resistor 21 generates heat and is transferred to the shell 12 through the first support 22, the second support 23, and the heating cavity support 11.

[0038] The area with a higher temperature on the shell 12 is mainly concentrated in the area where the heating resistor 21 extends radially to the circumference of the shell 12, as indicated by the arrow. In the above-mentioned circumferential area, that is, the area where the heating resistor 21 projects radially to the shell 12, a locally closed gap is designed, and the gap is filled with the heat insulation layer 3. The heat insulation layer 3 is made of a material with a lower thermal conductivity, including but not limited to aerogel, cork, foamed plastic (polystyrene foam, polyurethane foam, etc.), inert gas, vacuum insulation device, etc. The heat insulation layer 3 will greatly slow down the heat conduction along the shortest straight line from the heating resistor 21 to the shell 12. The distance between the lead-in end of the heating resistor and the heating cavity support 11 and the shell 12 at the lead-in end also lengthens the direct heat conduction path, delaying the time when the heat reaches the shell 12 during the user's use cycle.

[0039] By slowing down the heat conduction speed of the heating resistor 21 towards the shell 12, on the one hand, more energy can be effectively supplied to the aerosol generating article 7, ensuring the utilization efficiency of energy consumption, and on the other hand, preventing the temperature of the shell 12 from being too high.

[0040] 2. The heat concentrated in the heating area is dispersed and transferred to a larger surface area of the shell 12 by heat conduction, reducing the local temperature of the shell 12 and improving the heat dissipation effect:

[0041] As Figure 3 The heat of the heating cavity support 11 and the second support 23 is transferred to the shell 12 through the heat conduction support 61. The heat conduction support 61 is made of a material with high thermal conductivity, including but not limited to graphene, graphite, copper, aluminum, gold, silver, etc. One end of the heat conduction support 61 is in close contact with the bottom of the second support 23 and the heating cavity support 11, and the other end extends along the axial direction to the holding end of the shell.

[0042] As Figure 4, the heat-conducting support 61 is the closest area of the heat-conducting support 61 to the heat-conducting cavity support 11 to the heat-conducting support 61, and a gap is formed between the outermost side of the heat-conducting support 61 in contact with the heat-conducting cavity support 11 and the outer shell 12 to form a circle of empty areas 62, so that the heat-conducting support 61 and the outer shell 12 are not in direct contact at this area, and this area is in communication with the heat-insulating area, and the heat-insulating layer 3 can extend to fill the empty areas 62, so that the heat can be prevented from being concentrated in the local area of the outer shell 12, causing the local temperature of the outer shell 12 to be high.

[0043] The heat-conducting support 61 is provided with a plurality of heat dissipation fins 611 arranged in the axial direction on the side close to the holding end of the outer shell, and the top surface of the heat dissipation fin 611 is in contact with the inner wall of the outer shell 12, so that heat is conducted to the outer shell 12 through the heat dissipation fin 611. Since the protrusions of the heat dissipation fin 611 reduce the contact area between the heat-conducting support 61 and the outer shell 12 per unit area, the heat received per unit area is reduced, thus increasing the total heat dissipation area of the total heat conduction to the outer shell 12, and preventing the local heat from being concentrated in the outer shell 12, causing the local surface temperature to be too high.

[0044] Through the above two structures, through the double means of heat insulation and heat conduction, not only the heat conduction of the heat-conducting cavity with large heat generation is reduced, but also the excess heat is conducted to the area without the outer shell holding part, and the area of the outer shell holding part is utilized to disperse the accumulated heat and prevent the local surface temperature from being too high. Embodiment

[0045] This embodiment is suitable for product design with slightly larger internal space than that of embodiment 1, such as Figure 5 The difference between this embodiment and embodiment 1 is that the main circuit board 41 is translated as much as possible to the side of the key 45, increasing the space between the main circuit board 41 and the heat-conducting support 61, so that a heat dissipation cavity is formed between the main circuit board 41 and the heat-conducting support 61, and a forced cooling device is installed in the heat dissipation cavity. The forced cooling device includes a motor 63, a first fan 65 and a second fan 67. The motor 63 is a double-output shaft motor, and the two output shafts of the motor 63 are coaxially arranged, and the first reduction box 64 and the second reduction box 66 are respectively installed on the two output shafts. The first fan 65 is installed on the output end of the first reduction box 64, and the second fan 67 is installed on the output end of the second reduction box 66. The motor 63 is connected with the main circuit board 41 and is powered by the battery.

[0046] When it is necessary to improve the heat conduction effect, the motor 63 is started to drive the first fan 65 and the second fan 67 to rotate, so that the airflow velocity in the area where the first fan 65 and the second fan 67 are located is increased to form a pressure difference, so that the local heat accumulated in the heat generation system 2 is distributed to the entire space of the appliance, and even to the outside of the appliance.

[0047] In the embodiment, if the product internal space is limited, the space is insufficient to place the motor 63, a micro cooling fan can be connected with the main circuit board 41, and the micro cooling fan is in circuit communication with the main circuit board 41, but the micro cooling fan needs to be placed close to the heating system 2, and when the fan works, air is sucked towards a place with lower temperature, air flow exchange is formed, and heat is quickly distributed to a larger space. If the space is sufficient to place the motor 63, at least one fan can be directly driven by the motor 63, or a speed reducer can be additionally arranged to drive the fan, but at least one fan is placed close to the heating system. When two fans are selected, the two fans can be directly driven at both ends of the motor 63, so that the two fans have the same rotating speed. Figure 5 In the embodiment, the motor 63 is used to drive the first speed reducer 64 and the second speed reducer 66 at both ends of the motor 63, the first fan 65 and the second fan 67 are driven, respectively, under the same rotating speed of the motor 63, the first fan 65 and the second fan 67 are driven by different speed reduction ratios of the first speed reducer 64 and the second speed reducer 66, different rotating speeds are realized, and this is used to realize different air exchange of cold air and hot air in different regions under complex scenes and obtain the best cooling effect. Figure 5

[0048] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the concept of the utility model, or the content of the utility model specification and the drawings are included in the patent protection range of the utility model.​

Claims

1. A miniaturized heated cigarette device for reducing surface temperature, comprising a heating chamber for accommodating aerosol-generating materials, a heating system disposed within the heating chamber, a battery cell for providing energy to the heating system, a control system for connecting and controlling the heating system and the battery cell, and a support system for fixing the various components and facilitating user gripping, characterized in that: The support system is provided with a heat insulation area outside the heat cavity to reduce the outward diffusion of heat in the heat cavity, and the support system is provided with a heat conduction system connected with the heat generating system and the heat cavity in the holding part for the user to conduct and dissipate the heat generated by the heat generating system and the heat cavity.

2. The miniaturized heating cigarette smoking set for reducing surface temperature of claim 1, wherein: The support system comprises an outer shell in contact with the user, a heat cavity support forming the heat cavity, and an inner support frame fixing the parts, a gap is provided between the outer wall of the heat cavity support and the inner wall of the outer shell to form a heat insulation area, the heat insulation area is filled with a heat insulation layer, and the holding end of the outer shell is provided with a heat conduction system.

3. The miniaturized heating cigarette device for reducing surface temperature of claim 2, wherein: The heat insulation layer is made of a material with low thermal conductivity, including aerogel, cork, foamed plastic, inert gas or vacuum insulation device.

4. The miniaturized heating cigarette device for reducing surface temperature of claim 2, wherein: The heat generating system comprises a heat generating resistor arranged in the middle of the heat cavity, and a first support and a second support coaxially arranged at the bottom of the heat generating resistor, and the heat generating resistor is clamped and fixed in the first center hole of the heat cavity support through the cooperation of the first support and the second support.

5. The miniaturized heating cigarette device for reducing surface temperature of claim 4, wherein: The heat conduction system comprises a heat conduction support, one end of the heat conduction support is in close contact with the bottom of the heat cavity support and the second support, and the other end extends along the axial direction to the holding end of the outer shell and is in contact with the inner wall of the outer shell.

6. The miniaturized heating cigarette device for reducing surface temperature of claim 5, wherein: The heat conduction support is provided with a gap between the outermost side of the end in contact with the heat cavity support and the outer shell to form an empty area.

7. The miniaturized heating cigarette device for reducing surface temperature of claim 5, wherein: The heat conduction support is provided with a plurality of heat dissipation fins extending along the circumference of the outer shell on the side close to the holding end of the outer shell, the heat dissipation fins are in contact with the inner wall of the outer shell.

8. The miniaturized heating cigarette device for reducing surface temperature of claim 5 to 7, wherein: The heat conduction support encloses a heat dissipation cavity in the outer shell, and the heat dissipation cavity is provided with a forced cooling device.

9. The miniaturized heating cigarette device for reducing surface temperature of claim 8, wherein: The forced cooling device comprises a heat dissipation fan.

10. The miniaturized heating cigarette device for reducing surface temperature of claim 9, wherein: The forced cooling device comprises a motor, a first fan and a second fan, the motor is a double-output shaft motor, the two output shafts of the motor are coaxially arranged, and the first speed reducer and the second speed reducer are respectively installed on the two output shafts, the first fan is installed on the output end of the first speed reducer, and the second fan is installed on the output end of the second speed reducer.

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