CN218104909U - Heat insulator and aerosol generating device - Google Patents
Heat insulator and aerosol generating device Download PDFInfo
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- CN218104909U CN218104909U CN202222117436.1U CN202222117436U CN218104909U CN 218104909 U CN218104909 U CN 218104909U CN 202222117436 U CN202222117436 U CN 202222117436U CN 218104909 U CN218104909 U CN 218104909U
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Abstract
The utility model discloses a heat insulating part and aerosol generate device, aerosol generate device includes: a housing defining a cavity therein for receiving an aerosol-generating article; a heater disposed within the cavity for heating an aerosol-generating article within the cavity to generate an aerosol; and the heat insulation piece is at least partially arranged on the peripheral surface of the heater in a surrounding manner, wherein hollow microspheres are arranged in the heat insulation piece. The utility model provides a heat insulating part and aerosol generate device has solved the higher technical problem of surface temperature of present electron cigarette.
Description
Technical Field
The utility model relates to a smoking set technical field especially relates to a heat insulating part and aerosol generate device.
Background
The traditional cigarette needs to burn tobacco to generate smoke, but harmful substances such as carbon monoxide, tar and the like can be generated in the burning process, so that the health of a human body is influenced. Therefore, many substitutes for traditional cigarettes, such as smoking cessation tablets, electronic cigarettes and the like, appear on the market.
An electronic cigarette is a technology in which an aerosol-generating substrate (e.g., tobacco tar containing tobacco) is heated by a non-combustion heating method to form an evaporant, and the evaporant is mixed with air to form an aerosol. The electronic cigarette does not burn in the heating process, so that harmful substances can be prevented from being generated, and the harm to the health of a user can be reduced.
However, when the existing electronic cigarette is heated to generate aerosol, the temperature of the outer surface of the product is high, which affects the experience of the user.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide a heat insulating element and an aerosol generating device, which are used to solve the technical problem of high temperature of the outer surface of the present electronic cigarette.
To achieve the above object, an embodiment of the present invention provides an aerosol generating device, including:
a housing defining a cavity therein for receiving an aerosol-generating article;
a heater disposed within the cavity for heating an aerosol-generating article within the cavity to generate an aerosol; and
and the heat insulation piece is at least partially arranged on the peripheral surface of the heater in a surrounding manner, wherein hollow microspheres are arranged in the heat insulation piece.
Optionally, in an embodiment of the present invention, the hollow beads in the heat insulation member account for 11% to 30% by weight.
Optionally, in an embodiment of the present invention, a particle size of the hollow glass micro beads in the thermal insulation member is in a range of 5 to 20 micrometers.
Optionally, in an embodiment of the present invention, the hollow beads are hollow glass beads.
Optionally, the utility model discloses an embodiment, the shell is including epitheca, mesochite and the inferior valve that connects gradually, the mesochite is equipped with the cavity, the epitheca locate with the air inlet of cavity intercommunication, the inferior valve be equipped with the gas outlet of cavity intercommunication.
Optionally, in an embodiment of the present invention, the upper shell and the middle shell are bonded; and/or, the middle shell and the lower shell are bonded.
Optionally, in an embodiment of the present invention, the lower casing faces the side of the middle casing, a first positioning portion is disposed on the side of the middle casing, the first positioning portion faces the direction close to the middle casing, extends and surrounds the gas outlet, and the end of the heater close to the lower casing is disposed in the covering space formed by the first positioning portion.
Optionally, in an embodiment of the present invention, a second positioning portion is disposed on a side surface of the lower shell facing the middle shell, the second positioning portion extends toward a direction close to the middle shell and is disposed around the air outlet, and both the heat insulating element and an end of the middle shell close to the lower shell are located in a covering space formed by the second positioning portion; and/or the presence of a gas in the gas,
the air outlet is provided with a blocking piece, and the blocking piece is connected with the inner wall of the air outlet.
Optionally, in an embodiment of the present invention, the housing further includes a third positioning portion, the third positioning portion is connected to the upper shell, and extends into the cavity to abut against the heat insulation member, so as to cooperate with the lower shell to be clamped on two opposite surfaces of the heat insulation member; and/or the presence of a gas in the gas,
the heater comprises a metal tube and an electrical heating portion arranged on the outer surface of the metal tube, and the metal tube is communicated with the cavity to heat the aerosol-generating product.
In order to achieve the above object, an embodiment of the present invention provides a heat insulation member, which includes hollow beads and an injection molding substrate.
Optionally, in an embodiment of the present invention, the weight part of the hollow bead is 11-30, and the weight part of the injection molding base material is 70-89; and/or the particle size of the hollow microsphere is 5-20 micrometers; and/or the hollow microspheres are hollow glass microspheres.
In order to achieve the above object, an embodiment of the present invention provides a method for manufacturing a heat insulation member, including the following steps:
weighing raw materials for forming the heat insulation piece according to a formula, wherein the raw materials comprise hollow microspheres and an injection molding base material;
mixing the raw materials by a particle extractor to obtain a mixed raw material;
and carrying out injection molding on the mixed raw materials to obtain the heat insulation piece.
Compared with the prior art, the utility model provides an among the technical scheme, aerosol generates behind the cavity that goods got into the shell, utilizes the heater can generate goods to aerosol in the cavity and heat, and aerosol after the heating generates the matrix and forms the mixture to mix with the air, thereby form aerosol. Moreover, the heat insulation piece can reduce the heat conduction of the heater to the outer direction of the shell, the surface temperature of the shell is prevented from being too high, the problem that a user burns hands when using the heater is prevented, and therefore the experience of the user is improved. In addition, the hollow microspheres are arranged in the heat insulation piece, the hollow microspheres interrupt a heat conduction path in the heat insulation piece, and heat convection is not formed in the hollow part, so that the heat conductivity of parts is reduced, and the heat insulation effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Figure 1 is a schematic diagram of the structure of an embodiment of the aerosol-generating device of the present invention;
figure 2 is a schematic diagram of an exploded view of an embodiment of the aerosol generating device of the present invention;
fig. 3 is a schematic cross-sectional view of an aerosol-generating device according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
110 | |
| 111 | |
120 | |
| 130 | Lower casing | 131 | A |
| 132 | |
140 | |
| 150 | |
200 | |
| 210 | |
220 | |
| 300 | Heat insulation piece |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope protected by the embodiments of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions related to "first", "second", and the like in the embodiments of the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the embodiments of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In addition, technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory to each other or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and the combination is not within the protection scope claimed by the embodiments of the present invention.
Tobacco products (such as cigarettes, cigars and the like) burn tobacco during use to generate tobacco smoke, and harmful substances such as carbon monoxide, coal tar and the like are generated during the combustion of the tobacco, so that the health of a user is adversely affected. To this end, aerosol-generating devices have been designed to generate an aerosol by heating tobacco or other non-tobacco products. Typically, the aerosol-generating article is heated by a heater to form an aerosol. However, the heater may generate a large amount of heat during operation, and a portion of the heat may be conducted to the outside of the aerosol-generating device, so that the temperature of the outer surface of the aerosol-generating device may increase, and a user may feel hot to the hand during use, which may result in poor user experience. To prevent heat from the heater from being conducted toward the housing, there are two current approaches: firstly, the problem of high surface temperature of the aerosol generating device can be solved by adopting a metal bracket or a metal shell, but the power consumption of the product can be increased; secondly, the heat insulation is carried out by using heat insulation foam or aerogel sheets, but the assembly is more complicated, and the powder falling condition is easy to occur after the sheets are aged.
In view of this, the embodiment of the present invention provides an aerosol generating device, which has a heat insulation element disposed on the outer surface of the heater, and can reduce the heat conduction of the heater toward the casing, thereby avoiding the temperature rise of the casing, preventing the discomfort of the user due to the higher temperature of the casing, and improving the experience of the user.
In order to better understand the technical scheme, the technical scheme is described in detail below with reference to the accompanying drawings.
As shown in fig. 1-3, an aerosol-generating device according to an embodiment of the present invention includes:
a housing 100 defining a cavity therein for receiving an aerosol-generating article;
a heater 200 disposed within the cavity for heating the aerosol-generating article within the cavity to generate an aerosol; and
and a heat insulator 300 at least partially surrounding the outer circumferential surface of the heater 200, wherein the heat insulator 300 has cenospheres therein.
In the solution adopted by this embodiment, once the aerosol-generating article has entered the cavity of the housing 100, the aerosol-generating article within the cavity can be heated by the heater 200, the heated aerosol-generating substrate forming a mixture and mixing with air to form an aerosol. Moreover, the heat insulation member 300 can reduce the heat conduction of the heater 200 to the outside of the casing 100, thereby avoiding the over-high surface temperature of the casing 100, preventing the user from scalding hands when using the heater, and improving the user experience. In addition, the heat insulation member 300 is provided with hollow beads, the hollow beads interrupt a heat conduction path in the heat insulation member 300, and heat convection is not formed in the hollow part, so that the heat conductivity of the part is reduced, and the heat insulation effect is improved.
In particular, the aerosol-generating device may heat the aerosol-generating article to obtain an aerosol. The aerosol-generating article may be tobacco or other non-tobacco product, which may or may not contain nicotine.
The interior of the housing 100 forms a cavity for receiving an aerosol-generating article through which the aerosol-generating article can be received or contained. An air inlet 140 and an air outlet 150 may be provided in the housing 100, the air inlet 140 being adapted to receive a tobacco rod or other non-tobacco product, it being understood that the tobacco rod or other non-tobacco product at the air inlet 140 extends within the cavity so as to provide an aerosol-generating device with an aerosol-generating article. The air outlet 150 of the housing 100 facilitates the outflow of the aerosol, and a suction nozzle may be installed at the air outlet 150, which is beneficial for a user to suck the aerosol generated in the cavity. An end cover capable of being opened and closed can be arranged at the air inlet 140, the end cover can be in threaded connection with the air inlet 140, and when a product needs to be inserted, the end cover can be screwed out of the air inlet 140, so that the air inlet 140 is exposed; when the product is not required to be inserted, the end cover is screwed with the air inlet 140, so that the air inlet 140 is sealed, and impurities such as dust are prevented from entering the cavity. To prevent the end cap from being unscrewed from the air inlet 140 and being lost, a pull string or a link chain may be provided, by which the end cap and the outer case 100 are connected. The gas outlet 150 can be further provided with a blocking piece, the blocking piece is connected with the inner wall of the gas outlet 150, the blocking piece is made of flexible materials, such as rubber, silica gel and the like, a crack is arranged on the blocking piece, the crack can be a cross-shaped crack or a straight-line-shaped crack, when the gas outlet 150 is not used, the blocking piece can close the gas outlet 150, and when a user sucks the gas with force, the blocking piece deforms at the crack, so that the gas outlet 150 is opened, and aerosol in the cavity flows out of the gas outlet 150. It will be appreciated that, on inhalation by a user, aerosol may flow from the air outlet 150; when the user does not absorb, the aerosol gathers in the cavity to avoid the waste of aerosol, improve user's satisfaction and experience and feel. Preferably, the housing 100 is cylindrical. The material of the housing 100 may be a high temperature resistant plastic material, such as PEEK (polyether ether ketone) and PPSU (polyphenylene sulfone resin), which can resist a temperature of more than 200 degrees for a long time, has low thermal conductivity and high strength, and can prolong the service life of the housing 100.
The heater 200 is primarily for heating the aerosol-generating article within the cavity and is disposed within the cavity, preferably with the heater 200 disposed circumferentially along the inner wall of the cavity. It is understood that the heater 200 has a ring shape. The heater 200 may be electromagnetic induction heating or infrared heating, and is not limited herein. The aerosol-generating article is placed in the cavity and when used by a user, the heater 200 is operated to heat the aerosol-generating article within the cavity and the aerosol-generating article is heated and mixed with air to form an aerosol. In the aerosol generating process, combustion cannot be generated, the generation of carbon monoxide and coal tar can be reduced, and the harm to the body health of a user is prevented.
The heat insulator 300 serves to insulate heat from the outer surface of the heater 200 and prevent heat from being conducted toward the housing 100. It will be appreciated that the thermal shield 300 is provided on the outer surface of the heater 200 to maximise the use of heat generated by the heater 200 to heat the aerosol generating article, reducing heat loss and increasing the heating efficiency of the heater 200. Moreover, the heat conduction towards the shell 100 is reduced, the temperature rise on the surface of the shell 100 is avoided, the phenomenon that the user feels hot due to overhigh temperature is prevented, and the experience of the user is improved. Preferably, the heat insulator 300 has a ring shape and is disposed around the outer circumference of the heater 200. Specifically, the heat insulation member 300 is provided with hollow beads therein, the heat insulation member 300 may be formed by mixing and injection molding hollow glass beads and an injection molding base material, and the injection molding base material may be plastic, etc., which is not limited herein. The hollow microspheres may be hollow ceramic microspheres or hollow glass microspheres, which is not limited herein. The hollow glass microsphere is a micron-sized hollow glass microsphere with a smooth surface, the main chemical component of the hollow glass microsphere is borosilicate glass, and the hollow glass microsphere is a hollow transparent regular sphere under the observation of an electron microscope. The hollow glass beads have various performances of low density, high strength, high temperature resistance, acid and alkali resistance, low heat conductivity coefficient, electric insulation and the like, good fluidity and chemical stability, higher filling amount and better heat insulation and fireproof effects. It can be understood that the heat insulating member 300 is provided with cenospheres by which a path of heat conduction can be interrupted in the heat insulating member 300, and the hollow portions of the cenospheres do not form heat convection, which reduces heat conductivity of parts, thereby preventing the surface temperature of the case 100 from being excessively high. With heat insulating part 300 assembly to in the cavity, can make overall structure have advantages such as small, light in weight, thermal insulation performance are good, and then let the aerosol generate device consumption little, energy loss is few, shell 100 low temperature.
Further, in an embodiment of the present invention, the hollow micro beads in the heat insulation member 300 account for 11% to 30% by weight. In this embodiment, the proportion range of the hollow beads and the injection molding base material in the heat insulation member 300 is adjusted, so that the obtained heat insulation member 300 is subjected to parameter measurement, the heat insulation performance is better, and the process is relatively simple. Preferably, the weight ratio of the hollow micro beads in the heat insulation member 300 is 11 to 20, so that both the process difficulty and the heat insulation performance can be considered. It can be understood that the larger the weight proportion of the hollow beads in the heat insulating member 300, the more complicated the process, and the better the heat insulating property. By adjusting the ratio of parts by weight of the hollow micro beads in the thermal insulation member 300, the conductivity of the thermal insulation member 300 can be reduced to 0.15-0.19W/m.k.
Further, in an embodiment of the present invention, the hollow micro beads in the heat insulating member 300 have a particle size ranging from 5 to 20 μm. In this embodiment, the particle size of the hollow micro beads in the thermal insulation member 300 is adjusted, and the obtained thermal insulation member 300 is subjected to parameter measurement, so that the thermal insulation performance is better, and the process is relatively simple. Preferably, the particle size of the hollow micro beads in the heat insulation member 300 is 10 to 15 micrometers, so that the process difficulty and the heat insulation performance can be considered at the same time. It is understood that the larger the particle size of the hollow beads in the heat insulating member 300, the more complicated the process, and the better the heat insulating property. By adjusting the particle size of the hollow micro beads in the thermal insulation member 300, the conductivity of the thermal insulation member 300 can be reduced to 0.15-0.19W/m.k. It is noted that the lower the conductivity, the better the insulating properties.
Further, referring to fig. 2, in an embodiment of the present invention, the housing 100 includes an upper shell 110, a middle shell 120, and a lower shell 130 connected in sequence, the middle shell 120 is provided with a cavity, the upper shell 110 is provided with an air inlet 140 communicated with the cavity, and the lower shell 130 is provided with an air outlet 150 communicated with the cavity.
In this embodiment, for convenience of assembly, the housing 100 may include an upper shell 110, a middle shell 120, and a lower shell 130, and the upper shell 110, the middle shell 120, and the lower shell 130 may be made of metal materials or other non-metal materials. Wherein the lower case 130 is formed with a cavity. During assembly, the heater 200 may be fixed to the lower case 130, the heat insulating member 300 may be fitted over the outer circumferential surface of the heater 200, the middle case 120 may be fitted over the outer circumferential surface of the heat insulating member 300, and the upper case 110 may be covered on an end of the middle case 120 away from the lower case 130, so that the assembly of the entire device may be completed. It should be noted that the upper shell 110, the middle shell 120, and the lower shell 130 may be fixed by welding or by screws, which is not limited herein. Of course, in other embodiments, the upper shell 110 and the middle shell 120 may also be bonded; and/or, an adhesive bond may be provided between the middle case 120 and the lower case 130. So set up, can simplify the fixed flow between each part through bonding, save time can also guarantee fixed effect. Specifically, the adhesive may be fixed by glue, non-adhesive glue, or double-sided adhesive, which is not limited herein.
Further, referring to fig. 3, in an embodiment of the present invention, the first positioning portion 131 is disposed on the side of the lower casing 130 facing the middle casing 120, the first positioning portion 131 extends toward the direction close to the middle casing 120 and is disposed around the air outlet 150, and one end of the heater 200 close to the lower casing 130 is disposed in the covering space formed by the first positioning portion 131.
In this embodiment, the lower shell 130 is provided with a first positioning portion 131, one end of the first positioning portion 131 is connected to the lower shell 130, and the other end of the first positioning portion 131 extends toward the middle shell 120, so that the first positioning portion 131 protrudes out of the lower shell 130. Preferably, the first positioning portion 131 is disposed around the air outlet 150 by one turn, thereby forming a covering space. One end of the heater 200, which is away from the upper shell 110, is located in the covering space, so that the heater 200 can be limited by the first positioning portion 131 protruding from the lower shell 130, the heater 200 is prevented from moving in the direction perpendicular to the axis of the housing 100, and the fixing effect of the heater 200 is improved. Specifically, the first positioning portion 131 may be a protrusion or a support bar. One or more first positioning portions 131 may be provided, and only the first positioning portions need to be provided around the air outlet 150; the first positioning portion 131 may also be annularly disposed around the air outlet 150.
Further, referring to fig. 3, a second positioning portion 132 is disposed on a side surface of the lower shell 130 facing the middle shell 120, the second positioning portion 132 extends toward a direction close to the middle shell 120 and is disposed around the first positioning portion 131, and the heat insulation member 300 and one end of the middle shell 120 close to the lower shell 130 are both located in a covering space formed by the first positioning portion 131 and the second positioning portion 132.
In this embodiment, the lower case 130 is further provided with a second positioning portion 132, one end of the second positioning portion 132 is connected to the lower case 130, and the other end of the second positioning portion 132 extends toward a direction close to the middle case 120, so that the second positioning portion 132 protrudes out of the lower case 130. Preferably, the second positioning portion 132 is disposed around the first positioning portion 131 by one turn, so as to form a covering space. One end of the heat insulating member 300 and the middle shell 120 is located in the covering space formed by the second positioning portion 132 and the first positioning portion 131, so that the heat insulating member 300 and the middle shell 120 can be limited by the second positioning portion 132 and the first positioning portion 131 protruding from the lower shell 130, the heat insulating member 300 and the middle shell 120 are prevented from moving in the axial direction perpendicular to the outer shell 100, and the fixing effect is improved. Specifically, the second positioning portion 132 may be a protrusion or a support bar. One or more second positioning portions 132 may be provided, and only need to be provided around the air outlet 150; the second positioning portion 132 may also be annularly disposed around the first positioning portion 131, which is not limited herein. It should be noted that only one of the first positioning portion 131 and the second positioning portion 132 may be provided, or both of them may be provided; when the first positioning portion 131 and the second positioning portion 132 are provided at the same time, the first positioning portion 131 and the second positioning portion 132 may be provided at intervals.
Further, referring to fig. 3, in an embodiment of the present invention, the housing 100 further includes a third positioning portion 111, the third positioning portion 111 is connected to the upper shell 110, and extends into the cavity to abut against the heat insulation member 300, so as to cooperate with the lower shell 130 to clamp on two opposite surfaces of the heat insulation member 300.
In this embodiment, the upper case 110 is provided with a third positioning portion 111, one end of the third positioning portion 111 is connected to the upper case 110, the other end of the third positioning portion 111 extends in a direction close to the middle case 120, and one end of the third positioning portion 111 far from the upper case 110 is used for abutting against the heat insulator 300. It can be understood that the third positioning portion 111 and the lower case 130 abut on both opposite sides of the heat insulator 300, thereby clamping and fixing the heat insulator 300 in the cavity, preventing the heat insulator 300 from moving in the cavity, and improving the fixing effect of the heat insulator 300. In an embodiment, one or more third positioning portions 111 may be provided, and the third positioning portions 111 may also be integrally formed with the upper shell 110, which is not limited herein. In other embodiments, a notch may be provided on the heat insulation member 300, and one end of the third positioning portion 111 far from the upper shell 110 may extend into the notch, so as to position and fix the heat insulation member 300.
Further, referring to fig. 2, the heater 200 includes a metal tube 210 and an electrical heating portion 220 provided on an outer surface of the metal tube 210, the metal tube 210 communicating with the cavity to heat the aerosol-generating article.
In this embodiment, the metal pipe 210 may be any one of SUS304/SUS316/AL, and the metal pipe 210 is disposed coaxially with the cavity. The surface of the metal tube 210 is provided with an electric heating part 220, the electric heating part 220 may be a heating sheet or a heating net, the electric heating part 220 is connected to a power supply through a wire, and generates heat by using a resistance wire heating principle, and heat generated by the electric heating part 220 is transferred to the metal tube 210 to heat the aerosol-generating product. The wires may extend to the outside of the housing 100 to connect with an external circuit. It should be noted that the housing 100 and the heat insulation member 300 are provided with an avoiding hole for passing a wire therethrough, and the wire is hermetically connected to the avoiding hole.
To achieve the above object, the embodiment of the present invention provides a heat insulation member 300, wherein the heat insulation member 300 includes:
1-30 parts by weight of hollow microspheres; and
70-89 parts by weight of an injection molding base material.
In this embodiment, by adjusting the proportion range of the hollow micro beads in the heat insulation member 300 and the injection molding base material, the obtained heat insulation member 300 is subjected to parameter measurement, so that the heat insulation performance is better, and the process is relatively simple. Preferably, the weight ratio of the hollow micro beads in the heat insulation member 300 is 11 to 20, so that the process difficulty and the heat insulation performance can be considered at the same time. It can be understood that the larger the weight ratio of the hollow beads in the heat insulating member 300, the more complicated the process, and the better the heat insulating performance. By adjusting the ratio of parts by weight of the hollow micro beads in the thermal insulation member 300, the conductivity of the thermal insulation member 300 can be reduced to 0.15-0.19W/m.k. In this embodiment, the hollow beads may be hollow glass beads or hollow ceramic beads, and the injection molding substrate may be plastic, or the like, which is not limited herein.
Furthermore, in an embodiment of the present invention, the hollow glass beads have a particle size of 5 to 20 μm.
In this embodiment, the obtained thermal insulation member 300 is subjected to parameter measurement by adjusting the particle size of the hollow micro beads in the thermal insulation member 300, so that the thermal insulation performance is better, and the process is relatively simple. Preferably, the particle size of the hollow micro beads in the heat insulation member 300 is 10 to 15 micrometers, so that the process difficulty and the heat insulation performance can be considered at the same time. It is understood that the larger the particle size of the hollow beads in the heat insulating member 300, the more complicated the process, and the better the heat insulating property. By adjusting the particle size of the hollow beads in the thermal insulator 300, the conductivity of the thermal insulator 300 can be reduced to 0.15-0.19W/m.k. It is noted that the lower the conductivity, the better the insulating properties.
In order to achieve the above object, an embodiment of the present invention provides an injection molding method of a heat insulation member 300, including the following steps:
weighing the raw materials for forming the heat insulation piece 300 according to a formula, wherein the raw materials comprise hollow microspheres and an injection molding base material;
mixing the raw materials to obtain a mixed raw material;
the mixed raw materials are injection-molded to obtain the heat insulator 300.
In this embodiment, the cenospheres and the injection molding base material are weighed according to the formula, then the weighed cenospheres and the injection molding base material are placed in a pellet extractor to be uniformly mixed, so as to obtain a mixed raw material, and finally, the mixed raw material is subjected to injection molding by using an injection molding machine, so that the whole injection molding process is completed, and the heat insulation part 300 is formed. The density of the molded material is 0.9-1.2, the melt index (the test condition of the melt index: the test temperature is 400 ℃, the load is 2.16 kg) of the product is 21-36 g/10min, and the crystallinity is 28-35%.
The above only is the preferred embodiment of the present invention, and the patent scope of the embodiment of the present invention is not limited thereby, and all the equivalent structure changes made by the embodiments of the present invention and the attached drawings under the inventive concept of the embodiment of the present invention, or directly/indirectly applied to other related technical fields are included in the patent protection scope of the embodiments of the present invention.
Claims (10)
1. An aerosol-generating device, comprising:
a housing defining a cavity therein for receiving an aerosol-generating article;
a heater disposed within the cavity for heating an aerosol-generating article within the cavity to generate an aerosol; and
and the heat insulation piece is at least partially arranged on the peripheral surface of the heater in a surrounding manner, wherein hollow microspheres are arranged in the heat insulation piece.
2. An aerosol-generating device according to claim 1, wherein the cenospheres in the thermal insulating member have a particle size in the range of 5 to 20 microns.
3. An aerosol-generating device according to claim 2, wherein the cenospheres are cenospheres of hollow glass.
4. An aerosol-generating device according to claim 1, wherein the housing comprises an upper shell, a middle shell and a lower shell connected in series, the middle shell being provided with the cavity, the upper shell being provided with an air inlet communicating with the cavity, the lower shell being provided with an air outlet communicating with the cavity.
5. An aerosol-generating device according to claim 4, wherein the lower shell is provided with a first positioning portion on a side thereof facing the middle shell, the first positioning portion extends in a direction close to the middle shell and is disposed around the air outlet, and one end of the heater close to the lower shell is located in a covering space formed by the first positioning portion.
6. An aerosol-generating device according to claim 5, wherein a second positioning portion is provided on a side of the lower case facing the middle case, the second positioning portion extends in a direction close to the middle case and is disposed around the first positioning portion, and the heat insulating member and one end of the middle case close to the lower case are both located in a covering space formed by the second positioning portion and the first positioning portion; and/or the presence of a gas in the gas,
the air outlet is provided with a blocking piece, and the blocking piece is connected with the inner wall of the air outlet.
7. An aerosol-generating device according to claim 4, wherein the housing further comprises a third detent connected to the upper shell and extending into the cavity to abut the thermal barrier to cooperate with the lower shell to grip onto opposite surfaces of the thermal barrier.
8. An aerosol-generating device according to any one of claims 1 to 7, wherein the heater comprises a metal tube and an electrically heated portion provided on an outer surface of the metal tube, the metal tube being in communication with the cavity to heat the aerosol-generating article.
9. A heat insulation piece is characterized by comprising hollow microspheres and an injection molding base material.
10. The thermal insulating element of claim 9, wherein said cenospheres have a particle size of 5 to 20 microns; and/or the presence of a gas in the gas,
the hollow microspheres are hollow glass microspheres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222117436.1U CN218104909U (en) | 2022-08-11 | 2022-08-11 | Heat insulator and aerosol generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222117436.1U CN218104909U (en) | 2022-08-11 | 2022-08-11 | Heat insulator and aerosol generating device |
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| Publication Number | Publication Date |
|---|---|
| CN218104909U true CN218104909U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222117436.1U Active CN218104909U (en) | 2022-08-11 | 2022-08-11 | Heat insulator and aerosol generating device |
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| Country | Link |
|---|---|
| CN (1) | CN218104909U (en) |
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2022
- 2022-08-11 CN CN202222117436.1U patent/CN218104909U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20230426 Address after: Floor 3, Building 2, Community 41, Zhongkai High tech Zone, Huizhou City, Guangdong Province, 516000 Patentee after: Huizhou Tongli Electronics Co.,Ltd. Address before: 516006 community 37, Zhongkai high tech Zone, Huizhou, Guangdong Patentee before: Tongli Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |