WO2022160961A1 - 一种发热组件、雾化器及电子雾化装置 - Google Patents
一种发热组件、雾化器及电子雾化装置 Download PDFInfo
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- WO2022160961A1 WO2022160961A1 PCT/CN2021/136558 CN2021136558W WO2022160961A1 WO 2022160961 A1 WO2022160961 A1 WO 2022160961A1 CN 2021136558 W CN2021136558 W CN 2021136558W WO 2022160961 A1 WO2022160961 A1 WO 2022160961A1
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- Prior art keywords
- heating
- edge
- atomization
- electrode
- atomizing
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Abstract
一种发热组件、雾化器及电子雾化装置,发热组件包括用于吸取液态介质的多孔基体(1)和位于多孔基体(1)的雾化面(11)上的用于对多孔基体(1)中吸附的液态介质进行加热雾化的发热体(2),设置发热体(2)边缘与雾化面(11)边缘之间的最小间距值L1以使多孔基体(1)在发热体(2)工作状态下的侧边温度小于105°;发热体(2)边缘与雾化面(11)边缘之间的最小间距值L1和雾化面(11)的最小宽度值L2的比值大于15.6%。发热体(2)在加热时,一方面降低了多孔基体(1)侧边的温度,避免了多孔基体(1)侧边的发热座因温度过高而发生变形、进而引起换气不畅的问题;另一方面提高了发热组件的烟雾产生量。
Description
交叉引用
本申请要求在2021年01月27日提交的申请号为PCT/CN2021/073998、发明名称为“陶瓷基体及其制备方法、陶瓷发热体及电子雾化装置”的PCT专利申请的优先权,其全部内容通过引用结合在本申请中。
本发明涉及电子雾化器技术领域,具体涉及一种发热组件、雾化器及电子雾化装置。
电子雾化器是一种将气溶胶生成基质雾化成气溶胶的装置,其被广泛应用于医疗设备和电子雾化装置。电子雾化器主要包括通电后加热雾化烟液的陶瓷发热体,陶瓷发热体包括用于导液的多孔陶瓷基体和设置在多孔陶瓷基体的雾化面上的发热膜。
现有技术中,为了提高陶瓷发热体的烟雾产生量,一般会通过增大发热膜的发热功率来提高陶瓷发热体的正面温度,这样会导致陶瓷发热体侧边的温度过高,容易引起陶瓷发热体侧边的发热座发生变形,进而引发换气不畅等问题。
发明内容
因此,本发明要解决的技术问题在于克服现有技术中的陶瓷发热体的侧边温度过高、容易引起发热座变形、进而引发换气不畅的缺陷,从而提供一种组件、雾化器及电子雾化装置。
为解决上述技术问题,本发明的技术方案如下:
一种发热组件,包括用于吸取液态介质的多孔基体和位于所述多孔基体的雾化面上的用于对所述多孔基体中吸附的液态介质进行加热雾化的发热体;设置所述发热体边缘与所述雾化面边缘之间的最小间距值L1、以使所述多孔基体在所述发热体工作状态下的侧边温度小于105°。
在一些实施例中,所述发热体边缘与所述雾化面边缘之间的最小间距值L1和所述雾化面的最小宽度值L2的比值大于15.6%。
在一些实施例中,所述发热体边缘与所述雾化面边缘之间最小间距值L1和所述雾化面的最小宽度值L2的比值在15.6%-21.9%之间的部分所述发热体的长度L3和所述发热体的总长度L4之间的比值小于20%。
在一些实施例中,所述多孔基体为长方体。
在一些实施例中,所述最小间距值L1大于0.4mm。
在一些实施例中,所述发热体在工作状态下的温度大于200℃。
在一些实施例中,所述多孔基体的导热系数范围为0.8-2W/mk。
在一些实施例中,所述发热体相对于所述雾化面的中心点对称设置。
在一些实施例中,所述发热体两端连接有位于所述雾化面上的第一电极和第二电极,所述第一电极和第二电极位于所述雾化面纵向长度方向的两端。
在一些实施例中,所述雾化面包括核心雾化区域和位于所述核心雾化区域外的边缘雾化区域,所述边缘雾化区域位于所述所述第一电极和所述第二电极限定的区域内;所述发热体在所述核心雾化区域的分布密度大于在所述边缘雾化区域的分布密度。
在一些实施例中,所述发热体包括与所述第一电极连接的第一连接段、与所述第二电极连接的第二连接段、以及将所述第一连接段和所述第二连接段串联的中间弯折连接段,所述中间弯折连接段的边缘靠近所述核心雾化区域的边缘设置。
在一些实施例中,所述连接段的边缘靠近所述核心雾化区域的边缘设置。
在一些实施例中,所述发热体的40-90%分布在所述核心雾化区域内。
本实用新型还提供一种雾化器,包括如上述任一项所述的发热组件、用于存储液态介质的储液腔、以及具有连通所述储液腔和所述发热组件的导液通道的雾化座。
本实用新型还提供一种电子雾化装置,包括电源装置、以及如上述所述的雾化器,所述电源装置与所述雾化器电性连接。
本发明技术方案,至少具有如下优点:发热体边缘与雾化面边缘之间的最小间距值L1和雾化面的最小宽度值L2的比值大于15.6%,发热体在加热的时候,一方面降低了多孔基体侧边的温度,避免了多孔基体侧边的发热座因温度过高而发生变形、进而引起换气不畅的问题;另一方面提高了发热组件的烟雾产生量。
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案,下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为现有技术中改善前的发热组件的结构示意图;
图2为本发明实施例改善后的发热组件的结构示意图;
图3为改善前后发热组件侧面温度对比图;
图4为改善前后发热组件烟雾产生量对比图;
图5为本发明实施例提供的雾化器的剖视图;
图6为本发明实施例提供的电子雾化装置的结构示意图。
附图标记说明:1、多孔基体;11、雾化面;2、发热体;3、第一电极;4、第二电极;5、壳体;51、储液腔;6、导液座;61、导液通道;7、电源装置。
下面将结合附图对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”、“第三”仅用于描述目的,而不能理解为指示或暗示相对重要性。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
此外,下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
如图1和图2所示的一种发热组件,其中图1为改善前现有技术中发热组件的结构示意图,图2为本发明改善后发热组件的结构示意图。发热组件可应用于雾化器中对烟液、药液等液态介质进行加热雾化,其可包括用于吸取液态介质的多孔基体1以及用于对吸附到多孔基体1中的液态介质进行加热雾化的发热体2。该多孔基体1包括相对设置的第一面和第二面。其中,该第一面为用于安装发热体2的雾化面11,第二面为用于吸收烟液、药液等液态介质的吸液面。液态介质在多孔基体1的吸液面一侧被吸收后向多孔基体1的雾化面11一侧渗透。
在本实施例中,多孔基体1呈长方体型,雾化面11形成在多孔基体1的长 方形表面上。在其他实施例中,多孔基体1上的雾化面11还可以为圆形、椭圆形、菱形、方形等其他形状。多孔基体1可由多孔陶瓷、多孔玻璃陶瓷、多孔玻璃等硬质毛细结构制成。可选地,多孔基体1由多孔陶瓷制成。多孔陶瓷耐高温,化学性质稳定,不会与烟液发生化学反应,且多孔陶瓷为绝缘体,不会与其上设置的发热体2电连接而发生短路等问题,方便制造、成本低。
在一些实施例中,多孔陶瓷上的微孔的孔径范围可为1μm至100μm。多孔陶瓷的平均孔径可为10-35μm。可选地,多孔陶瓷的平均孔径为20-25μm。
可选地,多孔陶瓷上的孔径为5μm至30μm的微孔的体积,占多孔陶瓷上的所有微孔体积的60%以上。多孔陶瓷中孔径为10-15μm的微孔的体积占多孔陶瓷上的所有微孔体积的20%以上,多孔陶瓷中孔径为30-50μm的微孔的体积占多孔陶瓷上的所有微孔体积的30%左右。多孔陶瓷的孔隙率可为30%至70%,孔隙率是指多孔介质内的微小空隙的总体积与该多孔介质的总体积的比值。孔隙率的大小可以根据烟液的成分来调整,例如烟液的粘稠度大的,孔隙率则可以高一些,以保证导液效果。可选地,多孔陶瓷的孔隙率为50-60%。
雾化面11通常可包括核心雾化区域以及位于核心雾化区域外的边缘雾化区域,核心雾化区域通常可位于雾化面11的中心位置。液态介质在多孔基体1的吸液面一侧向雾化面11一侧渗透后,雾化面11上单位面积内液体介质含量聚集的区域为核心雾化区域、单位面积内液体介质含量分散的区域为边缘雾化区域;通常而言,边缘雾化区域由核心雾化区域的液体介质向外扩散形成。发热组件在加热的时候,因为核心雾化区域的温度较高,液态介质挥发的较快,边缘雾化区域的部分液态介质也会流向核心雾化区域,向核心雾化区域聚集,因此边缘雾化区域会限定在一定范围内,从而可避免漏液的情况,用户吸雾的时候不会吸入液滴,提升了用户体验。
通常,发热体2的延伸方向与多孔基体1上雾化面11的长度方向一致,发热体2在核心雾化区域中的分布密度大于在核心雾化区域外的边缘雾化区域的分布密度。该分布密度在一些实施例中可以为,发热体2在核心雾化区域(或边 缘雾化区域)所占的面积与该核心雾化区域(或边缘雾化区域)的面积的比值。通常,发热体2的40-90%分布在核心雾化区域内。
发热体2的两端可分别设置有第一电极3、第二电极4,第一电极3、第二电极4用于分别与电池装置的正负极电性连接。通常,边缘雾化区域位于第一电极3、第二电极4所界定的空间内。在一些实施方式中,第一电极3和第二电极4设置在发热体2两端的中间位置。在另外的一些实施方式中,当发热组件为侧边进气时,第一电极3、第二电极4可分别设置在雾化面11的对角上,以优化侧边进气时烟雾的输送效果,有效防止第一电极3、第二电极4对气流的阻碍,避免烟雾滞留在雾化腔内,提高烟雾流动效率。
发热体2可以为发热膜或发热丝,其材质可以为金属。发热体2的两端分别可设置有用于安装第一电极3、第二电极4的焊盘。可选地,发热体2为发热膜,其可采用电子浆料印刷在多孔基体1的雾化面11上。当多孔基体1为烧结式结构时,发热体2可通过烧结的方式与多孔基体1一体成型。
在一些实施例中,该发热膜可包括依次形成在雾化面11上的第一覆盖膜和第二覆盖膜。第一覆盖膜、第二覆盖膜均可以为多孔膜。第一覆盖膜的材质可以为钛、锆、钛铝合金、钛锆合金、钛钼合金、钛铌合金、铁铝合金或钽铝合金等,第二覆盖膜的材质可以为铂、钯、钯铜合金、金银铂合金、金银合金、钯银合金或金铂合金等。可选地,第一覆盖膜为钛锆合金膜,第二覆盖膜为金银合金膜。
发热体2可相对于雾化面11的中心点对称设置。在本实施例中,多孔基体1的导热系数范围为0.8-2W/mk;雾化面11大致呈长方形。
在一些实施例中,发热体2包括与第一电极3连接的第一连接段、与第二电极4连接的第二连接段、以及将第一连接段和第二连接段串联的中间弯折连接段,中间弯折连接段的边缘靠近核心雾化区域的边缘设置。发热体2的形状可配置成使得核心雾化区域中单位长度发热体2所需要加热的区域大小基本一致,避免多孔基体1的局部温度过高,来降低发热体2与多孔基体1之间的热 应力,减少发热体2和多孔基体1的变形量。
在本实施例中,发热体2边缘与雾化面11边缘之间的最小间距值L1和雾化面11的最小宽度值(第一宽度)L2的比值大于15.6%。例如,当雾化面11的最小宽度值L2为3.2mm时,发热体2边缘与雾化面11边缘之间的最小间距值L1大于0.5mm,比如L1为0.62mm。可选的,发热体2边缘与雾化面11边缘之间最小间距值L1和雾化面11的最小宽度值L2的比值在15.6%-21.9%之间的部分发热体2的长度L3和发热体2的总长度L4之间的比值小于20%。例如,当雾化面11的最小宽度值L2为3.2mm时,发热体2边缘与雾化面11边缘之间距离小于0.7mm的部分发热体2的长度L3和发热体2的总长度L4之间的比值小于20%。如此设置,发热体2在加热的时候,一方面降低了多孔基体1侧边的温度,避免了多孔基体1侧边的发热座因温度过高而发生变形、进而引起换气不畅的问题;另一方面提高了发热组件的烟雾产生量。
图3示出了图1、图2所示发热组件的侧面温度对比图,图4示出了图1、图2所示发热组件的烟雾产生量对比图。图3中,细线所示的改善方案为图2中发热组件的侧面温度示意图,粗线所示的原方案为图1中发热组件的侧面温度示意图,从图3中可以明显得出,改善方案中发热组件侧面的最高温度相对于原方案中发热组件侧面的最高温度降低了约18℃。图4中,黑体方框为改善方案在7.5瓦或8.5瓦以及不同抽吸口数下的烟雾产生量,半黑体方框为原方案在7.5瓦或8.5瓦以及不同抽吸口数下的烟雾产生量,从图4中可以明显得出,当发热功率为7.5瓦或8.5瓦时,改善方案相对于原方案的烟雾产生量增加了约0.5mg/puff。
具体还可以参照如下图表所示(其中,多孔基体的最小宽度值L2为3.2mm):
根据上表格记载可知,在多孔基体1在高导热系数(0.8-2W/mk)的范围内时,对发热膜多孔基体侧边的最小距离的限定,使发热膜边缘与雾化面11边缘之间的最小间距值L1大于0.5mm。发热功率8.5W,烟雾量6-6.5mg/puff,侧边温度<109℃;发热膜与多孔基体1侧边距离小于0.7mm的长度占发热膜全长比例<20%。
本发明实施例还提供了一种电子雾化装置,该电子雾化装置可作为电子烟使用,也可作为医疗雾化器等使用。
该电子雾化装置可包括雾化器和电池装置7,电池装置7与雾化器电性连接。雾化器和电池装置在一些实施例中可以以磁吸、螺接等可拆卸的方式连接在一起。
雾化器可包括用于收容液态介质的储液腔、发热组件、以及连接储液腔和发热组件的雾化座。雾化器和电源装置7组装后,电源装置7为雾化器中的发热组件的发热体2供电,发热体2发热后对液态介质加热雾化,供用户吸食。可以理解地,上述的任意一种发热体2均可以适用于该电子雾化装置。雾化器在一些实施例中还可包括用于收容液态介质的壳体5,壳体5具体为一端具有 敞口端、内部具有储液腔51的外壳。壳体5的敞口端密封连接有雾化座6,雾化座6的内部设有雾化腔,发热组件安装在雾化座6上,雾化座6上开设有可供储液腔51中的液体流向多孔基体1的吸液面的导液通道61。壳体7的闭口端连接有伸向储液腔51并与雾化座6相连的导气管,雾化座6上还设有连通导气管和雾化腔的雾化气通道(图未示出)。多孔基体1的雾化面11与雾化腔3相通。发热体2在雾化腔内产生烟雾,烟雾通过雾化气通道导入导气管,导气管用于将烟雾经壳体7上的烟雾出口导向用户口腔。
显然,上述实施例仅仅是为清楚地说明所作的举例,而并非对实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。
Claims (14)
- 一种发热组件,包括用于吸取液态介质的多孔基体(1)和位于所述多孔基体(1)的雾化面(11)上的用于对所述多孔基体(1)中吸附的液态介质进行加热雾化的发热体(2);其特征在于,设置所述发热体(2)边缘与所述雾化面(11)边缘之间的最小间距值L1、以使所述多孔基体(1)在所述发热体(2)工作状态下的侧边温度小于105°。
- 根据权利要求1所述的发热组件,其特征在于,所述发热体(2)边缘与所述雾化面(11)边缘之间的最小间距值L1和所述雾化面(11)的最小宽度值L2的比值大于15.6%。
- 根据权利要求2所述的发热组件,其特征在于,所述发热体(2)边缘与所述雾化面(11)边缘之间最小间距值L1和所述雾化面(11)的最小宽度值L2的比值在15.6%-21.9%之间的部分所述发热体(2)的长度L3和所述发热体(2)的总长度L4之间的比值小于20%。
- 根据权利要求1所述的发热组件,其特征在于,所述多孔基体(1)为长方体。
- 根据权利要求1所述的发热组件,其特征在于,所述最小间距值L1大于0.4mm。
- 根据权利要求1所述的发热组件,其特征在于,所述发热体(2)在工作状态下的温度大于200℃。
- 根据权利要求1所述的发热组件,其特征在于,所述多孔基体(1)的导热系数范围为0.8-2W/mk。
- 根据权利要求1所述的发热组件,其特征在于,所述发热体(2)相对于所述雾化面(11)的中心点对称设置。
- 根据权利要求1所述的发热组件,其特征在于,所述发热体(2)两端连接有位于所述雾化面(11)上的第一电极(3)和第二电极(4),所述第一电极(3)和第 二电极(4)位于所述雾化面(11)纵向长度方向的两端。
- 根据权利要求9所述的发热组件,其特征在于,所述雾化面(11)包括核心雾化区域和位于所述核心雾化区域外的边缘雾化区域,所述边缘雾化区域位于所述所述第一电极(3)和所述第二电极(4)限定的区域内;所述发热体(2)在所述核心雾化区域的分布密度大于在所述边缘雾化区域的分布密度。
- 根据权利要求10所述的发热组件,其特征在于,所述发热体(2)包括与所述第一电极(3)连接的第一连接段、与所述第二电极(4)连接的第二连接段、以及将所述第一连接段和所述第二连接段串联的中间弯折连接段,所述中间弯折连接段的边缘靠近所述核心雾化区域的边缘设置。
- 根据权利要求10所述的发热组件,其特征在于,所述发热体(2)的40-90%分布在所述核心雾化区域内。
- 一种雾化器,其特征在于,包括如权利要求1-12任一项所述的发热组件、用于存储液态介质的储液腔、以及具有连通所述储液腔和所述发热组件的导液通道的雾化座。
- 一种电子雾化装置,其特征在于,包括电源装置、以及如权利要求9所述的雾化器,所述电源装置与所述雾化器电性连接。
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