CN111805188A - 扁平式热交换器及其制造方法 - Google Patents
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Abstract
本发明提供一种扁平式热交换器及其制造方法,该扁平式热交换器包含一扁平管部、一第一压合部、一第二压合部及一毛细结构。扁平管部具有一流道。第一压合部与第二压合部分别连接于扁平管部的相对两端,以分别密封流道的相对两端。毛细结构位于扁平管部内。
Description
技术领域
本发明关于一种热交换器及其制造方法,特别是一种扁平式热交换器及其制造方法。
背景技术
热管是一种中空的金属管体,具有快速均温的特性。热管的运用范围相当广泛,早期运用于航天领域,现今已普及运用于各式热交换器、冷却器等。
热管具有一封闭腔室,封闭腔室容纳有冷却流体。借由封闭腔体内冷却流体液汽二相变化的冷却循环,使热管呈现快速均温的特性而达到传热的目的。其作动机制为,液相冷却流体于吸热端蒸发成汽相冷却流体,并在腔体内产生局部高压,驱使汽相冷却流体高速流向散热端,汽相冷却流体于散热端凝结成液相冷却流体后,借由毛细结构回流至吸热端。
热管的制造流程为先提供一金属的中空管体。接着,依据热源的工作温度来填入不同性质的冷却流体。接着,在中空管体的两端进行缩管作业。接着,在将中空管体两端的开口封闭。不过热管的缩管段实难以发挥散热效能,故缩管段严然形成热传导的无效段。若热管的宽度越宽,则无效段越长,且管体所需的缩管时间亦越长。因此,传统的热管制造方法,除了会产生热传导的无效段的问题,亦因缩管工艺而导致制造效率低落的问题。
发明内容
本发明在于提供一种扁平式热交换器及其制造方法,借以提升扁平式热交换器的制造效率与整体散热效能。
本发明的一实施例所揭示的扁平式热交换器的制造方法,包含下列步骤。将一圆管式热管扁化成一扁平式热管。焊接扁平式热管的一第一处。焊接扁平式热管的一第二处。
本发明的另一实施例所揭示的扁平式热交换器包含一扁平管部、一第一压合部、一第二压合部及一毛细结构。扁平管部具有一流道。第一压合部与第二压合部分别连接于扁平管部的相对两端,以分别密封流道的相对两端。毛细结构位于扁平管部内。
根据上述实施例所揭示的扁平式热交换器及其制造方法,由于上述的扁平式热交换器在制造过程中未经缩管工艺,故可以减去缩管所需的时间,并且宽度越宽的扁平式热交换器,所节省的时间就越多。如此一来,即可提高扁平式热交换器的制造效率。
此外,扁平式热交换器的宽度又比传统需缩管工艺的热管宽,使得在高散热需求的环境中而需要宽度较宽的散热器,即可采用单一根宽度较宽的扁平式热交换器来进行散热,而免去传统扁平式热管并排所造成的传导效率低落的问题。
此外,本实施例的扁平式热交换器无缩管段,故无热传导的无效段而能进一步提升其散热效能。
以上关于本发明内容的说明及以下实施方式的说明系用以示范与解释本发明的原理,并且提供本发明的专利申请范围更进一步的解释。
附图说明
图1为根据本发明第一实施例所述的扁平式热交换器的立体示意图。
图2为沿图1的2-2割面线所绘示的剖面示意图。
图3为图1的俯视示意图。
图4为图1的侧视示意图。
图5为图3的扁平式热交换器与传统的扁平式热管相比较的俯视示意图。
图6至图9为图1的扁平式热交换器的制造示意图。
其中附图标记为:
扁平式热交换器 10
圆管式热管 20
扁平式热管 22
第一处 23
第二处 24
扁平式热管 50
缩管段 52
扁平管部 100
端 101、102
中段 103
第一压合部 200
第一侧 201
第二侧 202
第二压合部 300
第一侧 301
第二侧 302
毛细结构 400
拉伸变形段 500
裁切线 B
长度 L
流道 S
宽度 W1~W4
厚度 T1~T4
具体实施方式
请参阅图1至图2。图1为根据本发明第一实施例所述的扁平式热交换器的立体示意图。图2为沿图1的2-2割面线所绘示的剖面示意图。
本实施例的扁平式热交换器10例如为扁平式热管。扁平式热交换器10包含一扁平管部100、一第一压合部200、一第二压合部300及一毛细结构400。
扁平管部100具有一流道S。流道S用以容纳冷却流体(未绘示),且扁平式热交换器10所填充的冷却流体可依扁平式热交换器10应用的环境来选择。第一压合部200与第二压合部300分别连接于扁平管部100的相对两端,以分别密封流道S的相对两端。毛细结构400全部位于扁平管部100的流道S内。然而毛细结构400的位置并非用以限制本发明,在其他实施例中,毛细结构也可以仅部分位于扁平管部的流道内,即毛细结构的另一部分夹设于第一压合部与第二压合部。
请参阅图3。图3为图1的俯视示意图。由于扁平管部100未经过缩管,故扁平管部100的相对两端101、102的宽度W1实质上等于中段103的宽度W2,且第一压合部200的宽度W3与第二压合部200的宽度W4实质上大于等于扁平管部100的中段103的宽度W2。
请参阅图4。图4为图1的侧视示意图。第一压合部200与第二压合部300各具有相对的一第一侧201、301及一第二侧202、302。第一压合部200与第二压合部300的二第一侧201、301分别透过二拉伸变形段500连接于扁平管部100的相对两端101、102,且第一侧201、301的厚度T1实质上等于第二侧202、302的厚度T2。
此外,扁平管部100未经过缩管工艺。所谓的缩管工艺系指利用缩管机来让管材具有缩管段,缩管段一般分成渐缩管段及骤缩管段。以渐缩管段为例,管材的渐缩管段的管径越外侧越小而呈渐缩状。由于扁平管部100未经过缩管工艺,故扁平管部100的相对两端101、102的厚度T3实质上等于中段103的厚度T4。需注意的是,扁平管部100的相对两端101、102与第一压合部200及第二压合部300的连接处因受到第一压合部200与第二压合部300的压合工艺影响会各有一拉伸变形段500,但拉伸变形段500与现有经缩管工艺所形成的缩管段不同,其长度L短到几乎可以忽略不计。即冷却流体(未绘示)在扁平式热交换器10的流道S内皆可运作而几乎没有热传导的无效段。
请参阅图5。图5为图3的扁平式热交换器与传统的扁平式热管相比较的俯视示意图。
本实施例的扁平式热交换器10的宽度约达传统的扁平式热管50的三倍。如此一来,当在高散热需求的环境中而需要宽度较宽的散热器,即可采用单一根宽度较宽的扁平式热交换器10来取代三根并排的传统扁平式热管50。由于传统扁平式热管50的并排处的热传导较低,故属于管外热传导,与管内热传导与采用三根并排的传统扁平式热管50相比,任二并排的传统扁平式热管50在相接间的热传导效能较低,但单一根扁平式热交换器10无接触所产生的热传导效能降低的问题。
此外,传统的扁平式热管50有缩管段52,因缩管段52内无毛细结构,使得冷却流体(未绘示)在缩管段52内无法发挥而形成热传导的无效段。但本实施例的扁平式热交换器10无缩管段,故无热传导的无效段而能进一步提升其散热效能。
此外,无缩管段的设计,亦能够提升扁平式热交换器10的制造效率,其原因容后一并说明。以下先介绍扁平式热交换器10的制造方法。
请参阅图6至图9。图6至图9为图1的扁平式热交换器的制造示意图。首先,如图6所示,提供一圆管式热管20。接着,如图7所示,将一圆管式热管20扁化成一扁平式热管22。接着,如图8所示,焊接扁平式热管22的一第一处23。接着,如图9所示,焊接扁平式热管22的一第二处24。接着,沿裁切线B裁切扁平式热管22的第二处24,并整形扁平式热管22,以获得上述的扁平式热交换器10。
上述焊接扁平式热管22的方式例如为扩散焊、压焊或激光焊。此外,由于第二处24并非位于扁平式热管22的端处,故在焊接第二处24后仍需进行裁切步骤。反之,若被焊接的第一处与第二处皆位于扁平式热管的端处,则后续即无需进行裁切步骤。此外,在本实施例中,裁切扁平式热管22后仍进行整形步骤,但在其他实施例中,若扁平式热管的外观已属良品,则亦可无需进行整形步骤。
从上述的制作方法可知,在焊接扁平式热管的第一处或第二处的步骤前,并无对扁平式热管22进行缩管工艺。所谓的缩管工艺系指利用缩管机来让管材具有缩管段,缩管段一般分成渐缩管段及骤缩管段。以经过渐缩管段为例,管材的渐缩管段的管径越外侧越小而呈渐缩状。由于扁平式热管22的宽度越宽,则缩管工艺的时间越长,故本实施例的扁平式热交换器10无经过缩管工艺除了可避免降低热传导效能之外,更能够缩短制造时间。
根据上述实施例所揭示的扁平式热交换器及其制造方法,由于上述的扁平式热交换器在制造过程中未经缩管工艺,故可以减去缩管所需的时间,并且宽度越宽的扁平式热交换器,所节省的时间就越多。如此一来,即可提高扁平式热交换器的制造效率。
此外,扁平式热交换器的宽度又比传统需缩管工艺的热管宽,使得在高散热需求的环境中而需要宽度较宽的散热器,即可采用单一根宽度较宽的扁平式热交换器来进行散热,而免去传统扁平式热管并排所造成的传导效率低落的问题。
此外,本实施例的扁平式热交换器无缩管段,故无热传导的无效段而能进一步提升其散热效能。
Claims (15)
1.一种扁平式热交换器的制造方法,其特征在于,包含:
将一圆管式热管扁化成一扁平式热管;
焊接该扁平式热管的一第一处;以及
焊接该扁平式热管的一第二处。
2.如权利要求1所述的扁平式热管的制造方法,其特征在于,在焊接该扁平式热管的该第二处的步骤后,更包含裁切该扁平式热管的该第一处或该第二处。
3.如权利要求2所述的扁平式热管的制造方法,其特征在于,在裁切该扁平式热管的该第一处或该第二处的步骤后,更包含整形该扁平式热管。
4.如权利要求1所述的扁平式热管的制造方法,其特征在于,在焊接该扁平式热管的该第二处的步骤后,更包含裁切该扁平式热管的该第一处及该第二处。
5.如权利要求4所述的扁平式热管的制造方法,其特征在于,在裁切该扁平式热管的该第一处及该第二处的步骤后,更包含整形该扁平式热管。
6.如权利要求1所述的扁平式热管的制造方法,其特征在于,在焊接该扁平式热管的该第一处或该第二处的步骤前,并无对该扁平式热管进行缩管工艺。
7.如权利要求1所述的扁平式热管的制造方法,其特征在于,焊接该扁平式热管的方法为扩散焊、压焊或激光焊。
8.一种扁平式热交换器的制造方法,其特征在于,包含:
将一圆管式热管扁化成一扁平式热管;
焊接该扁平式热管的一第一处;以及
焊接该扁平式热管的一第二处;
其中,在上述步骤中,该扁平式热管无进行缩管工艺。
9.一种扁平式热交换器,其特征在于,包含:
一扁平管部,具有一流道;
一第一压合部与一第二压合部,分别连接于该扁平管部的相对两端,以分别密封该流道的相对两端;以及
一毛细结构,至少部分位于该扁平管部的该流道内。
10.如权利要求9所述的扁平式热交换器,其特征在于,该扁平管部的相对两端的宽度实质上等于中段的宽度,且该第一压合部的宽度与该第二压合部的宽度大于等于该扁平管部的中段的宽度。
11.如权利要求9所述的扁平式热交换器,其特征在于,该第一压合部与该第二压合部各具有相对的一第一侧及一第二侧,该第一压合部与该第二压合部的该二第一侧分别连接于该扁平管部的相对两端,且该第一侧的厚度实质上等于该第二侧的厚度。
12.如权利要求11所述的扁平式热交换器,其特征在于,该扁平管部的相对两端的厚度实质上等于中段的厚度。
13.如权利要求9所述的扁平式热交换器,其特征在于,该毛细结构的部分位于该扁平管部的该流道内,该毛细结构的另一部分夹设于该第一压合部与该第二压合部。
14.如权利要求9所述的扁平式热交换器,其特征在于,该毛细结构全部位于该扁平管部的该流道内。
15.一种扁平式热交换器,其特征在于,包含:
一扁平管部,具有一流道;
一第一压合部与一第二压合部,分别连接于该扁平管部的相对两端,以分别密封该流道的相对两端;以及
一毛细结构,位于该扁平管部内;
其中,该扁平管部未经缩管工艺。
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TW108127603A TWI708921B (zh) | 2019-04-12 | 2019-08-02 | 扁平式熱交換器及其製造方法 |
US16/752,647 US20200326139A1 (en) | 2019-04-12 | 2020-01-25 | Flat heat exchanger and manufacturing method thereof |
US18/320,177 US20230288148A1 (en) | 2019-04-12 | 2023-05-18 | Flat heat exchanger and manufacturing method tereof |
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TW202037876A (zh) | 2020-10-16 |
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