CN113316400A - 热传递效率优秀的卷烟型电子烟用加热器及其制造方法 - Google Patents

热传递效率优秀的卷烟型电子烟用加热器及其制造方法 Download PDF

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CN113316400A
CN113316400A CN201980089264.XA CN201980089264A CN113316400A CN 113316400 A CN113316400 A CN 113316400A CN 201980089264 A CN201980089264 A CN 201980089264A CN 113316400 A CN113316400 A CN 113316400A
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Prior art keywords
cigarette
heat
heater
type electronic
transfer efficiency
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李载春
李忠国
王永星
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Hot Dragon
Lattron Co Ltd
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Hot Dragon
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on insulating base
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/70—Manufacture
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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    • C09J11/02—Non-macromolecular additives
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J179/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09J161/00 - C09J177/00
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    • C—CHEMISTRY; METALLURGY
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    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
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    • F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
    • F16B11/008—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing of tubular elements or rods in coaxial engagement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
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    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4865—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
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Abstract

本发明公开如下的卷烟型电子烟用加热器及其制造方法，即，利用在耐高温热塑性聚酰亚胺树脂内添加有散热填充剂的散热粘结剂层并通过热压接使卷烟支撑部与加热部之间接合，来加强卷烟支撑部与加热部之间的接合力，从而提高热传递效率。

Description

热传递效率优秀的卷烟型电子烟用加热器及其制造方法
技术领域
本发明涉及卷烟型电子烟用加热器及其制造方法，更详细地，涉及如下的卷烟型电子烟用加热器及其制造方法，即，利用在耐高温热塑性聚酰亚胺树脂内添加有散热填充剂的散热粘结剂层并通过热压接使卷烟支撑部与加热部之间接合，来加强卷烟支撑部与加热部之间的接合力，从而提高热传递效率。
背景技术
通常，卷烟形态的香烟几乎是用于吸入嗜好物质的唯一方式，但最近，液相电子烟成为了另一种方式。
这种液相电子烟通过向包含以液体形态装载有吸入物质的烟弹施加热量或超声波来将吸入物质汽化成蒸汽，从而产生微粒。因此，液相电子烟的产生烟雾的方式与现有的卷烟型香烟完全不同，尤其，可防止产生因燃烧引起的各种有害物质。
另一方面，根据偏好卷烟形态的普通香烟的需求人员的需要，最近出现了具有香烟形状的卷烟型电子烟。这种卷烟型电子烟利用加热器使包含于卷烟中的吸入物质汽化并使得使用人员通过与普通香烟具有相同结构的卷烟的过滤嘴进行吸入。
不同于填充有干烟叶的普通香烟，在卷烟型电子烟中填充有在表面浸渍或涂抹吸入物质的纸。卷烟***在卷烟型电子烟的壳体内部，通过加热壳体内部的加热器来对卷烟的吸入物质进行汽化，由此，使用人员可通过卷烟的过滤嘴吸入汽化的吸入物质。
因此，卷烟型电子烟与液相电子烟相同，具有与抽普通香烟时相同的机理，均可在不引起燃烧的情况下通过卷烟的过滤嘴吸入汽化的吸入物质。
但是，现有的卷烟型电子烟具有如下隐患，即，在用于加热卷烟的加热器中，当加热部与卷烟支撑部之间并未完全粘结时，具有因加热部过热而引起火灾的风险。
相关现有技术文献有韩国授权专利公报第10-0844445号(2008年07月08日公告)，在上述文献中记载有电加热卷烟。
发明内容
技术问题
本发明的目的在于，提供如下的卷烟型电子烟用加热器及其制造方法，即，利用在耐高温热塑性聚酰亚胺树脂内添加有散热填充剂的散热粘结剂层并通过热压接使卷烟支撑部与加热部之间接合，来加强卷烟支撑部与加热部之间的接合力，从而提高热传递效率。
技术方案
用于实现上述目的的本发明实施例的热传递效率优秀的卷烟型电子烟用加热器的特征在于，包括：卷烟支撑部，用于支撑卷烟；加热部，配置在上述卷烟支撑部的外侧，用于对与上述卷烟支撑部相结合的卷烟进行加热；以及散热粘结剂层，涂布在上述卷烟支撑部的表面，用于使上述卷烟支撑部与加热部之间接合。
用于实现上述目的的本发明实施例的热传递效率优秀的卷烟型电子烟用加热器制造方法的特征在于，包括：散热粘结剂层形成步骤，在卷烟支撑部的外侧表面形成散热粘结剂层；加热部配置步骤，以包围形成上述散热粘结剂层的卷烟支撑部的外侧的方式配置加热部；以及接合步骤，对上述卷烟支撑部及加热部进行热压接并通过上述散热粘结剂层使上述卷烟支撑部与加热部接合。
技术效果
本发明的热传递效率优秀的卷烟型电子烟用加热器及其制造方法利用在耐高温热塑性聚酰亚胺树脂内添加有散热填充剂的散热粘结剂层并通过热压接使卷烟支撑部与加热部之间接合，因此，不仅可加强卷烟支撑部与加热部之间的接合力，而且，可通过添加具有热传导性的散热填充剂来提高热传递效率。
其结果，本发明的热传递效率优秀的卷烟型电子烟用加热器及其制造方法通过配置在卷烟支撑部与加热部之间的散热粘结剂层加强卷烟支撑部与加热部之间的粘结力来确保粘结，而且，可通过散热填充剂来改善散热特性并在卷烟型电子烟工作过程中防止加热部过热。
附图说明
图1为示出本发明实施例的热传递效率优秀的卷烟型电子烟的剖视图；
图2为示出本发明实施例的热传递效率优秀的卷烟型电子烟的立体图；
图3为示出本发明实施例的热传递效率优秀的卷烟型电子烟用加热器的立体图；
图4为示出沿着图3的IV-IV’线切割的剖视图；
图5为示出本发明变形例的热传递效率优秀的卷烟型电子烟用加热器的剖视图；
图6至图8为示出本发明实施例的热传递效率优秀的卷烟型电子烟用加热器制造方法的工序剖视图。
附图标记说明
400：卷烟型电子烟用加热器 420：卷烟支撑部
440：散热粘结剂层 460：加热部
具体实施方式
以下参照附图及详细说明的实施例会让本发明的优点、特征及实现这些优点和特征的方法更加明确。但是，本发明并不限定于以下公开的实施例，可通过互不相同的方式实现，仅用于使本发明的公开变得完整，以便本发明所属技术领域的普通技术人员能够完全理解本发明的范畴。本发明仅基于发明要求保护范围加以定义。在本说明书全文中，对于相同结构要素赋予了相同的附图标记。
以下，参照附图，详细说明本发明优选实施例的热传递效率优秀的卷烟型电子烟用加热器及其制造方法。
图1为示出本发明实施例的热传递效率优秀的卷烟型电子烟的剖视图，图2为示出本发明实施例的热传递效率优秀的卷烟型电子烟的立体图。
参照图1及图2，本发明实施例的热传递效率优秀的卷烟型电子烟500包括壳体100、电池200、控制部300及加热器400。
在壳体100的一侧端部设置有用于***卷烟10的卷烟放入孔T。在这种壳体100形成有用于装载电池200及控制部300的内部空间。这种壳体100可被设计成分离结构。例如，使用人员可通过沿着顺时针方向或逆时针方向转动壳体100来分离壳体100的上端和下端。
在此情况下，在图1及图2中仅示出了与本发明的实施例相关的结构要素。因此，本发明所属技术领域的普通技术人员应当理解的是，除图1及图2中示出的结构要素外，本发明实施例的热传递效率优秀的卷烟型电子烟500还可包括其他广泛使用的结构要素。
若卷烟10***于壳体100的卷烟放入孔T，则卷烟型电子烟500将加热加热器400。在此情况下，卷烟10内的气雾生成物质的温度因加热的加热器400而上升，从而生成气雾。所生成的气雾通过卷烟10的过滤嘴传递到使用人员。
电池200供给用于卷烟型电子烟500工作所需的电力。例如，电池200可通过供给电力来加热加热器400。并且，电池200可供给控制部300工作所需的电力。进而，电池200也可供给用于设置在卷烟型电子烟500的显示部、传感器、电机等工作所需的电力。
作为电池200可使用磷酸铁锂(LiFePO4)电池，但并不局限于此。
控制部300用于整体控制卷烟型电子烟500的工作。具体地，控制部300用于控制包括电池200及加热器400在内的卷烟型电子烟500中的其他结构的工作。并且，控制部300也可通过分别确认卷烟型电子烟500的结构状态来判断卷烟型电子烟500是否处于可工作的状态。
为此，控制部300包括至少一个处理器。处理器也可通过多个逻辑门的阵列实现，也可通过通用的微处理器和存储有微处理器可运行程序的存储器的组合来实现。
加热器400基于从电池200供给的电力而被加热。若卷烟10***于壳体100的卷烟放入孔T，则加热器400包围卷烟10的外侧。为此，加热器400可具有在内部形成有卷烟固定口H的圆筒结构。由此，加热的加热器400可提高卷烟10内的气雾生成物质的温度。
为此，本发明的加热器400包括用于接合卷烟支撑部及加热部与卷烟支撑部及加热部之间的散热粘结剂层。
由此，本发明实施例的卷烟型电子烟用加热器400利用在耐高温热塑性聚酰亚胺树脂内添加有散热填充剂的散热粘结剂层并通过热压接使卷烟支撑部与加热部之间接合，来加强卷烟支撑部与加热部之间的接合力，从而可提高热传递效率。
对此，以下将参照附图进一步详细说明。
图3为示出本发明实施例的热传递效率优秀的卷烟型电子烟用加热器的立体图，图4为示出沿着图3的IV-IV’线切割的剖视图。
参照图3及图4，本发明实施例的热传递效率优秀的卷烟型电子烟用加热器400包括卷烟支撑部420、加热部460及散热粘结剂层440。
卷烟支撑部420具有支撑卷烟的作用。这种卷烟支撑部420可配置在卷烟型电子烟用加热器400的中心部。在此情况下，卷烟支撑部420可具有中空的圆筒形状。考虑到在卷烟型电子烟进行工作的情况下加热器400的温度大致为350℃，优选地，卷烟支撑部420应由具有350℃以上的耐热性的高分子或陶瓷材料制成。
作为一例，作为卷烟支撑部420的材料可使用非热塑性聚酰亚胺树脂。优选地，上述非热塑性聚酰亚胺树脂应具有15ppm/K～20ppm/K的热膨胀系数(CTE)、380℃～450℃的玻璃化转变温度(Tg)及550℃～600℃的热分解温度(Td)。
这种非热塑性聚酰亚胺树脂可包含二元胺(diamine)和二酐(dianhydride)。优选地，二元胺使用4,4-二氨基二苯醚(ODA，4,4-oxydianiline)及对苯二胺(PPDA，para-phenylenediamine)中的一种以上。二酐可包含均苯四甲酸二酐(PMDA，pyromelliticdianhydride)及联苯四甲酸二酐(BPDA，diphenyl tetra carboxylic acid dianhydride)中的一种以上。
加热部460配置在卷烟支撑部420的外侧，用于对与卷烟支撑部420相结合的卷烟(图2的10)进行加热。这种加热部460与卷烟支撑部420相同，优选地，应利用具有350℃以上的耐热性的高分子或陶瓷材料。
作为一例，加热部460的材料可使用非热塑性聚酰亚胺树脂。优选地，上述非热塑性聚酰亚胺树脂应具有15ppm/K～20ppm/K的热膨胀系数(CTE)、380℃～450℃的玻璃化转变温度(Tg)及550℃～600℃的热分解温度(Td)。
这种非热塑性聚酰亚胺树脂可包含二元胺和二酐。优选地，二元胺使用4,4-二氨基二苯醚及对苯二胺中的一种以上。二酐可包含均苯四甲酸二酐及联苯四甲酸二酐中的一种以上。
为了对与卷烟支撑部420相结合的卷烟进行加热，在加热部460可形成有发热图案(未图示)。上述发热图案可配置在加热部460的表面或内部。发热图案可使用导电性优秀的金属物质。具体地，发热图案可使用金(Au)、银(Ag)、铜(Cu)、镍(Ni)、钛(Ti)、铝(Al)、铬(Cr)等中的一种以上，优选使用铜。虽然上述发热图案的厚度可以为1μm～30μm，但并不局限于此。
散热粘结剂层440涂布在卷烟支撑部420的表面，用于使卷烟支撑部420与加热部460之间接合。即，散热粘结剂层440配置在卷烟支撑部420与加热部460之间，以便将加热部460稳定粘结在卷烟支撑部420，同时起到在卷烟型电子烟工作过程中防止加热部460过热的作用。
优选地，上述散热粘结剂层440的厚度为0.5μm～10μm。若散热粘结剂层440的厚度小于0.5μm，则因其厚度过薄而产生无法完全粘结的隐患。相反，若散热粘结剂层440的厚度大于10μm，则因其厚度过厚而产生热传递效率降低的隐患。
如上所述，为了顺利进行热传递并防止加热部460过热，散热粘结剂层440涂布在卷烟支撑部420的表面，包含热塑性聚酰亚胺树脂及添加于热塑性聚酰亚胺树脂的内部的散热填充剂。
在此情况下，作为热塑性聚酰亚胺树脂，优选使用具有240℃～300℃的玻璃化转变温度(Tg)及500℃～550℃的热分解温度(Td)的热塑性聚酰亚胺树脂。如上所述，可利用具有240℃～300℃的玻璃化转变温度(Tg)及500℃～550℃的热分解温度(Td)的耐高温热塑性聚酰亚胺树脂并通过热压接使卷烟支撑部420与加热部406接合来改善卷烟支撑部420与加热部460之间的接合力，从而可防止加热部460过热。
上述热塑性聚酰亚胺树脂可包含二元胺和二酐。在此情况下，二元胺可使用选自4,4-二氨基二苯醚、对苯二胺、2,2-双[4-(4-氨苯氧基)苯基]丙烷(BAPP，2,2-Bis(4-(4-amino phenoxy)phenyl)propane)、双(4-(3-氨基苯氧基)苯基)砜(m-BAPS，(bis(4-(3-aminophenoxy)phenyl)Sulfone))及1,3-双(4’-氨基苯氧基)苯(TPE-R，1,3-Bis(4-aminophenoxy)benzene)中的一种以上。而且，二酐可使用均苯四甲酸二酐、联苯四甲酸二酐、双酚A型二酐(BPADA，4,4’-bispheno A dianhydrie)及二苯酮四羧酸二酐(BTDA，Benzophenone tetracarboxylic acid dianhydride)中的一种以上。
散热填充剂分布在热塑性聚酰亚胺树脂内。像这样，可通过向热塑性聚酰亚胺树脂内分布具有热传导性的散热填充剂进行复合化来使热传递效率最大化并提高散热特性。
由此，本发明实施例的热传递效率优秀的卷烟型电子烟用加热器400因利用通过向热塑性聚酰亚胺树脂内添加散热填充剂进行复合化的散热粘结剂层440而具有0.5W/m·k～1.2W/m·k的热导率。
相对于100重量份的热塑性聚酰亚胺树脂，优选添加20重量份～50重量份的上述散热填充剂。相对于100重量份的热塑性聚酰亚胺树脂，若散热填充剂的添加量小于20重量份，则难以提高热传递效率。相反，相对于100重量份的热塑性聚酰亚胺树脂，若散热填充剂的添加量大于50重量份，则因热塑性聚酰亚胺树脂的含量相对减少而难以确保耐热性及粘结力。
在此情况下，作为散热填充剂可优选使用包括炭黑(carbon black)、碳纳米管(carbon nanotube)及石墨烯(graphene)的碳类填充剂中的一种以上。
并且，作为散热填充剂也可使用包括氮化硼(boron nitride)、氧化硅(siliconoxide)、氧化锌(zinc oxide)及氧化铝(aluminium oxide)的氧化物类填充剂中的一种以上。
优选使用平均直径及长度为50nm～1000nm的上述散热填充剂。若散热填充剂的平均直径及长度小于50nm，则随着其大小微细化，因分散性问题而引起粘结力及耐热性降低的问题。相反，若散热填充剂的平均直径及长度大于1000nm，则因热塑性聚酰亚胺树脂的厚度增加而产生热阻抗上升的隐患。
另一发明，图5为示出本发明变形例的热传递效率优秀的卷烟型电子烟用加热器的剖视图。
如图5所示，本发明变形例的热传递效率优秀的卷烟型电子烟用加热器400包括卷烟支撑部420、加热部460及散热粘结剂层440。
在此情况下，卷烟支撑部420可具有一侧端部尖锐且未中空的圆筒结构。
加热部460配置在卷烟支撑部420的外侧，起到对与卷烟支撑部420相结合的卷烟进行加热的作用。
散热粘结剂层440涂布在卷烟支撑部420的表面，起到使卷烟支撑部420与加热部460之间接合的作用。其中，散热粘结剂层440可涂布在除卷烟支撑部420的尖锐一侧端部外的所有表面。与此不同地，散热粘结剂层440也可涂布在卷烟支撑部420的所有外侧表面。
由此，除了在一部分结构的形状层面上存在差异外，本发明变形例的热传递效率优秀的卷烟型电子烟用加热器400与参照图3及图4说明的实施例中的卷烟型电子烟用加热器实质上相同，因此，将省略重复的说明。
如上所述，本发明的热传递效率优秀的卷烟型电子烟用加热器可利用在耐高温热塑性聚酰亚胺树脂内添加有散热填充剂的散热粘结剂层并通过热压接使卷烟支撑部与加热部接合，来加强卷烟支撑部与加热部之间的接合力，进而可通过添加具有热传导性的散热填充剂来提高热传递效率。
其结果，本发明的热传递效率优秀的卷烟型电子烟用加热器通过配置在卷烟支撑部与加热部之间的散热粘结剂层加强卷烟支撑部与加热部之间的粘结力并确保粘结，进而可通过改善散热填充剂的散热特性来防止在卷烟型电子烟工作过程中加热部过热。
以下，参照附图，说明本发明实施例的热传递效率优秀的卷烟型电子烟用加热器制造方法。
图6至图8为示出本发明实施例的热传递效率优秀的卷烟型电子烟用加热器制造方法的工序剖视图。
如图6所示，对卷烟支撑部420的外侧表面进行表面改性。
在此情况下，卷烟支撑部420可具有内部中心中空的圆筒形状。考虑到在上述卷烟型电子烟进行工作的情况下加热器的温度大致为350℃，因此，优选地，卷烟支撑部420应利用具有350℃以上的耐热性的高分子或陶瓷材料。
作为一例，作为卷烟支撑部420的材料可使用非热塑性聚酰亚胺树脂。优选地，上述非热塑性聚酰亚胺树脂应具有15ppm/K～20ppm/K的热膨胀系数(CTE)、380℃～450℃的玻璃化转变温度(Tg)及550℃～600℃的热分解温度(Td)。
在本步骤中，表面改性是以提高卷烟支撑部420的外侧表面的表面粗糙度为目的进行的。作为这种表面改性可通过利用腐蚀剂的化学湿磨方式进行。并且，表面改性也可通过利用磨辊的物理干磨方式进行。
如上所述，通过表面改性提高表面粗糙度的方式可使得与附着在卷烟支撑部420的外侧表面的散热粘结剂层(图7的440)的粘结面积有所增加。其结果，可进一步加强卷烟支撑部420与散热粘结剂层之间的接合力。
接着，如图7所示，在进行表面改性的卷烟支撑部420的外侧表面形成散热粘结剂层440。
在本步骤中，散热粘结剂层440可通过旋涂(spin coating)、喷嘴涂布(nozzlecoating)、喷涂(spray coating)、浸渍涂布(dip coating)及棒涂布(bar coating)中的一种方法向卷烟支撑部的外侧表面涂布散热粘结剂组合物并进行干燥形成。在此情况下，干燥可在作为可通过挥发去除热塑性聚酰亚胺树脂组合物内的溶剂的60℃的温度条件下进行10分钟并在150℃的温度条件下进行10分钟，虽然干燥可在200℃的温度条件下进行10分钟并在350℃的温度条件下进行10分钟，但并不局限于此。
优选地，上述散热粘结剂层440的厚度为0.5μm～10μm。若散热粘结剂层440的厚度小于0.5μm，则因其厚度过薄而产生无法完全粘结的隐患。相反，若散热粘结剂层440的厚度大于10μm，则因其厚度过厚而产生热传递效率降低的隐患。
如上所述，为了顺利进行热传递并防止加热部(图8的460)过热，散热粘结剂层440涂布在卷烟支撑部420的表面，包含热塑性聚酰亚胺树脂及添加于热塑性聚酰亚胺树脂的内部的散热填充剂。
在此情况下，作为热塑性聚酰亚胺树脂，优选使用具有240℃～300℃的玻璃化转变温度(Tg)及500℃～550℃的热分解温度(Td)的热塑性聚酰亚胺树脂。
上述热塑性聚酰亚胺树脂可包含二元胺和二酐。在此情况下，二元胺可使用选自4,4-二氨基二苯醚、对苯二胺、2,2-双4-(4-氨苯氧基)苯基丙烷及1,3-双(4’-氨基苯氧基)苯中的一种以上。而且，二酐可使用均苯四甲酸二酐、联苯四甲酸二酐、双酚A型二酐、4,4’-双(3-氨基苯氧基)二苯砜及二苯酮四羧酸二酐中的一种以上。
散热填充剂分布在热塑性聚酰亚胺树脂内。像这样，可通过向热塑性聚酰亚胺树脂内分布具有热传导性的散热填充剂进行复合化来使热传递效率最大化并提高散热特性。
相对于100重量份的热塑性聚酰亚胺树脂，优选添加20重量份～50重量份的上述散热填充剂。相对于100重量份的热塑性聚酰亚胺树脂，若散热填充剂的添加量小于20重量份，则难以正常发挥热传递效率。相反，相对于100重量份的热塑性聚酰亚胺树脂，若散热填充剂的添加量大于50重量份，则因热塑性聚酰亚胺树脂的含量相对减少而难以确保耐热性及粘结力。
在此情况下，作为散热填充剂可优选使用包括炭、碳纳米管及石墨烯的碳类填充剂中的一种以上。
并且，作为散热填充剂也可使用包括氮化硼、氧化硅、氧化锌及氧化铝的氧化物类填充剂中的一种以上。
优选使用平均直径及长度为50nm～1000nm的上述散热填充剂。若散热填充剂的平均直径及长度小于50nm，则随着其大小微细化，因分散性问题而引起粘结力及耐热性降低的问题。相反，若散热填充剂的平均直径及长度大于1000nm，则因热塑性聚酰亚胺树脂的厚度增加而产生热阻抗上升的隐患。
如图8所示，以包围形成散热粘结剂层440的卷烟支撑部420的外侧的方式配置加热部460。
上述加热部460与卷烟支撑部420相同，优选使用具有350℃以上的耐热性的高分子或陶瓷材料。
作为一例，作为加热部460的材料可使用非热塑性聚酰亚胺树脂。优选地，上述非热塑性聚酰亚胺树脂应具有15ppm/K～20ppm/K的热膨胀系数(CTE)、380℃～450℃的玻璃化转变温度(Tg)及550℃～600℃的热分解温度(Td)。
为了对与卷烟支撑部420相结合的卷烟进行加热，在加热部460可形成有发热图案。上述发热图案可配置在加热部的表面或内部。
随后，对卷烟支撑部420及加热部460进行热压接并通过散热粘结剂层440使卷烟支撑部420与加热部460接合。
在本步骤中，优选在260℃～350℃的温度条件下进行热压接。若热压接温度小于260℃，则因表面粘结力不充分而产生无法确保卷烟支撑部420与加热部460之间的接合的隐患。相反，若热压接温度大于350℃，则因在只增加制造成本的情况下无法进一步增加效果而导致经济性低下。
由此，可通过以上工序制造本发明实施例的热传递效率优秀的卷烟型电子烟用加热器400。
实施例
以下，将说明优选实施例，以便于理解本发明。但是，以下实施例仅为本发明的例示，本发明所属技术领域的普通技术人员可在本发明的范畴及技术思想范围内进行多种变更及修改，而这种变形及修改均属于所附的发明要求保护范围。
1.卷烟型电子烟用加热器的制造
实施例1
通过利用磨辊的物理干磨方式对厚度为80μm的卷烟支撑部的外侧表面进行表面改性。
接着，通过喷嘴涂布法在经表面改性的卷烟支撑部的外侧表面以5μm的厚度涂布由平均直径为500nm的碳纳米管、热塑性聚酰亚胺树脂及溶剂组成的散热粘结剂组合物后，在60℃的温度条件下干燥10分钟并在150℃的温度条件下干燥10分钟，在200℃的温度条件下干燥10分钟并在350℃的温度条件下固化10分钟，从而形成散热粘结剂层。
随后，以包围形成散热粘结剂层的卷烟支撑部的外侧的方式配置厚度为120μm的加热部后，通过热压接在300℃的温度条件下制造卷烟型电子烟用加热器。
其中，热塑性聚酰亚胺树脂为通过将0.139mol的2,2-双[4-(4-氨苯氧基)苯基]丙烷溶解在410g的二甲基乙酰胺(DMAc，Dimethylacetamid)后，分别溶解0.111mol的均苯四甲酸二酐和0.028mol的二苯酮四羧酸二酐并通过反应合成。在此情况下，合成的热塑性聚酰亚胺树脂的玻璃化转变温度(Tg)为280℃。
并且，在散热粘结剂层中，相对于100重量份的热塑性聚酰亚胺树脂添加了20重量份的碳纳米管。
实施例2
在散热粘结剂层中，相对于100重量份的热塑性聚酰亚胺树脂，添加30重量份的碳纳米管外，除此之外通过与实施例1相同方法制造卷烟型电子烟用加热器。
实施例3
相对于100重量份的热塑性聚酰亚胺树脂，添加40重量份的平均直径为300nm的炭黑来代替碳纳米管，除此之外通过与实施例1相同方法制造卷烟型电子烟用加热器。
实施例4
除形成厚度为2μm的散热粘结剂层外，通过与实施例1相同方法制造卷烟型电子烟用加热器。
实施例5
除形成厚度为8μm的散热粘结剂层外，通过与实施例1相同方法制造卷烟型电子烟用加热器。
比较例1
除以下过程外，通过与实施例1相同方法制造卷烟型电子烟用加热器，即，通过喷嘴涂布法在未进行表面改性的卷烟支撑部的外侧表面以5μm的厚度涂布由热塑性聚酰亚胺树脂及溶剂组成的散热粘结剂组合物后，在60℃的温度条件下干燥10分钟并在150℃的温度条件下干燥10分钟，在200℃的温度条件下干燥10分钟并在350℃的温度条件下固化10分钟，从而形成散热粘结剂层。
比较例2
在散热粘结剂层中，相对于100重量份的热塑性聚酰亚胺树脂，添加5重量份的碳纳米管，除此之外通过与实施例1相同方法制造卷烟型电子烟用加热器。
2.物性评价
表1为示出通过实施例1～实施例5及比较例1～比较例2制造的卷烟型电子烟用加热器的物性评价结果。
1)热导率
以10mm*10mm(宽*长)的尺寸进行切割后，利用热导率测定装置测定并示出热导率。
2)粘结力
以10mm*10mm(宽*长)的尺寸进行切割后，通过以90°角度进行剥离(peeling)的IPC-TM-650 2.4.9方法测定并示出散热粘结剂层与卷烟支撑部之间的剥离强度。
表1
Figure BDA0003165249740000131
参照表1，经确认，通过实施例1～实施例5制造的卷烟型电子烟用加热器均满足相当于目标值的0.5W/m·k～1.1W/m·k的热导率及1.0kgf/cm以上的粘结力。
相反，通过比较例1制造的卷烟型电子烟用加热器均无法满足热导率及粘结力。
并且，虽然通过比较例2制造的卷烟型电子烟用加热器的粘结力满足目标值，但是，热导率仅为0.11W/m·k，并未达到目标值。
以上，以本发明的实施例为中心进行了说明，但是，本发明所属技术领域的普通技术人员可进行多种变更或变形。这种变更和变形在不脱离本发明提供的技术思想范围的前提下均属于本发明。因此，本发明的权利范围应根据发明要求保护范围判断。

Claims (11)

1.一种热传递效率优秀的卷烟型电子烟用加热器，其特征在于，包括：
卷烟支撑部，用于支撑卷烟；
加热部，配置在上述卷烟支撑部的外侧，用于对与上述卷烟支撑部相结合的卷烟进行加热；以及
散热粘结剂层，涂布在上述卷烟支撑部的表面，用于使上述卷烟支撑部与加热部之间接合。
2.根据权利要求1所述的热传递效率优秀的卷烟型电子烟用加热器，其特征在于，上述散热粘结剂层包括：
热塑性聚酰亚胺树脂；以及
散热填充剂，分布在上述热塑性聚酰亚胺树脂内。
3.根据权利要求2所述的热传递效率优秀的卷烟型电子烟用加热器，其特征在于，上述热塑性聚酰亚胺树脂具有240℃～300℃的玻璃化转变温度及500℃～550℃的热分解温度。
4.根据权利要求2所述的热传递效率优秀的卷烟型电子烟用加热器，其特征在于，相对于100重量份的上述热塑性聚酰亚胺树脂，添加20重量份～50重量份的上述散热填充剂。
5.根据权利要求1所述的热传递效率优秀的卷烟型电子烟用加热器，其特征在于，上述散热填充剂包含碳类填充剂中的一种以上，上述碳类填充剂包括炭黑、碳纳米管和石墨烯。
6.根据权利要求1所述的热传递效率优秀的卷烟型电子烟用加热器，其特征在于，上述散热填充剂包含氧化物类填充剂中的一种以上，上述氧化物类填充剂包括氮化硼、氧化硅、氧化锌及氧化铝。
7.根据权利要求1所述的热传递效率优秀的卷烟型电子烟用加热器，其特征在于，上述散热粘结剂层的厚度为0.5μm～10μm。
8.一种热传递效率优秀的卷烟型电子烟用加热器制造方法，其特征在于，包括：
散热粘结剂层形成步骤，在卷烟支撑部的外侧表面形成散热粘结剂层；
加热部配置步骤，以包围形成上述散热粘结剂层的卷烟支撑部的外侧的方式配置加热部；以及
接合步骤，对上述卷烟支撑部及加热部进行热压接并通过上述散热粘结剂层使上述卷烟支撑部与加热部接合。
9.根据权利要求8所述的热传递效率优秀的卷烟型电子烟用加热器制造方法，其特征在于，在上述散热粘结剂层形成步骤之前，还包括表面改性步骤，对上述卷烟支撑部的外侧表面进行改性。
10.根据权利要求8所述的热传递效率优秀的卷烟型电子烟用加热器制造方法，其特征在于，上述散热粘结剂层通过旋涂、喷嘴涂布、喷涂、浸渍涂布及棒涂布中的一种方法向上述卷烟支撑部的外侧表面涂布散热粘结剂组合物并进行干燥来形成。
11.根据权利要求8所述的热传递效率优秀的卷烟型电子烟用加热器制造方法，其特征在于，在上述接合步骤中，在260℃～350℃的温度条件下进行上述热压接。
CN201980089264.XA 2019-01-15 2019-11-14 热传递效率优秀的卷烟型电子烟用加热器及其制造方法 Pending CN113316400A (zh)

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