CN205755051U - 一种新型高导热电路板 - Google Patents

一种新型高导热电路板 Download PDF

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CN205755051U
CN205755051U CN201620701869.3U CN201620701869U CN205755051U CN 205755051 U CN205755051 U CN 205755051U CN 201620701869 U CN201620701869 U CN 201620701869U CN 205755051 U CN205755051 U CN 205755051U
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circuit board
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陶应国
杨婷
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SICHUAN HAIYING ELECTRONIC TECHNOLOGY Co Ltd
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Abstract

本实用新型公开了一种新型高导热电路板,它包括电路基板(1)和散热器,电路基板(1)的顶表面上设置有线路层(2),散热器由单面胶(3)和散热片(4)组成,单面胶(3)的顶部设置有胶粘层,胶粘层上开设有凹槽(5),凹槽(5)内且沿凹槽(5)的长度方向顺次设置有多个散热片(4),散热器位于电路基板(1)的下方,单面胶(3)经胶粘层粘合在电路基板(1)的底表面上,散热片(4)的顶表面与电路基板(1)的底表面接触,线路层(2)上贴合有保护膜(6)。本实用新型的有益效果是:结构紧凑、散热效果好、制作成本低、使用寿命长。

Description

一种新型高导热电路板
技术领域
本实用新型涉及导热电路板结构的技术领域,特别是一种新型高导热电路板。
背景技术
电路板是电子器件的承载体,是一个电子产品或电气设备中必不可少的部分。随着电子、电气技术的发展,人们对电路板的要求也越来越高,尤其是随着LED 作为照明器件,走入人们的生活后,对电路板的散热性能要求也越来越高,目前,一些需要高散热性能的电路板都是采用铝基电路板,其是在铝板上设有一层导热胶,一方面可起到导热的作用,另一方面还有绝缘的作用,在导热胶上附着有一层铜膜电路板线路,但是导热胶的导热性能不是很好,从而会影响整个电路板的导热性能。随着电路板的长时间工作,热量大量堆积在线路层上,最终导致线路层烧毁,严重降低了电路板的使用寿命,市场的竞争力也逐渐下降。
实用新型内容
本实用新型的目的在于克服现有技术的缺点,提供一种结构紧凑、散热效果好、制作成本低的新型高导热电路板。
本实用新型的目的通过以下技术方案来实现:一种新型高导热电路板,它包括电路基板和散热器,所述的电路基板的顶表面上设置有线路层,所述的散热器由单面胶和散热片组成,单面胶的顶部设置有胶粘层,胶粘层上开设有凹槽,凹槽呈矩形状,所述的凹槽内且沿凹槽的长度方向顺次设置有多个散热片,所述的散热器位于电路基板的下方,单面胶经胶粘层粘合在电路基板的底表面上,散热片的顶表面与电路基板的底表面接触,所述的线路层上贴合有保护膜。
所述的每相邻两个散热片之间的间距相等。
所述的每个散热片的高度均相等。
本实用新型具有以下优点:本实用新型结构紧凑、散热效果好、制作成本低、使用寿命长。
附图说明
图1 为本实用新型的结构示意图;
图2 为本实用新型散热器的结构示意图;
图3 为图2的俯视图;
图中,1-电路基板,2-线路层,3-单面胶,4-散热片,5-凹槽,6-保护膜。
具体实施方式
下面结合附图对本实用新型做进一步的描述,本实用新型的保护范围不局限于以下所述:
如图1~3所示,一种新型高导热电路板,它包括电路基板1和散热器,所述的电路基板1的顶表面上设置有线路层2,线路层2上印有电路图案,所述的散热器由单面胶3和散热片4组成,单面胶3的顶部设置有胶粘层,胶粘层上开设有凹槽5,凹槽5呈矩形状,所述的凹槽5内且沿凹槽5的长度方向顺次设置有多个散热片4,所述的散热器位于电路基板1的下方,单面胶3经胶粘层粘合在电路基板1的底表面上,散热片4的顶表面与电路基板1的底表面接触,所述的线路层2上贴合有保护膜6,保护膜6用于防止线路层与空气以及空气中的水分子接触后产生铜锈,同时保护膜还能避免手上的汗粘在线路层,避免发生电解反应出现线路层上电路损坏的现象,当要使用该电路板上的线路层。
所述的每相邻两个散热片4之间的间距相等;每个散热片4的高度均相等。
当高导热电路板在长时间运作时,线路层2上的热量经电路基板1传递到散热片4上,再由散热片4传递到外界,从而实现了热量的传导和释放,使该产品始终处于常温状态下,不会出现烧毁电路板上线路的现象,极大延长了电路板的使用寿命,寿命可达5~8年。
该高导热电路板的制作工艺如下:
S1、选用铜材质的电路基板1,在电路基板1的表面上压合一层厚度为0.5mm的铜箔,铜箔的厚度适中能够保证了铜箔在蚀刻过程中快速制得线路层2,若厚度过厚则要花费较长时间制得,降低了生产效率;
S2、线路层2的制作,铜箔表面进行清洗;放入酸性除油液中 2min,除去铜箔上的油脂污染和氧化层;清洗后烘干处理保证铜箔表面光洁;将铜箔顺次通过蚀刻、曝光、整平处理得到所需的线路层2,实现了线路层2的制作;
S3、在步骤S2中线路层2的顶表面上贴合保护膜6;
S4、制作散热器,取用一块与电路基板1相同大小的单面胶3,将位于单面胶3顶部的覆盖膜撕下使胶粘层露出,在胶粘层的顶部开设凹槽5,在凹槽5内固定安装数个散热片4,从而实现了散热器的制作;
S5、将步骤S4中的胶粘层贴在电路基板1的底表面,并保证每个散热片4的顶表面均与电路基板1接触;
S6、高导热电路板的制作,将步骤S5中的电路基板1放置于压力机内,通过压力机对保护膜6顶表面施加20N的均匀压力,同时以相同大小的压力对单面胶3的底表面施加压,以保证胶粘层热合在电路基板1上,从而实现了成品高导热电路板的制作
以上所述仅是本实用新型的优选实施方式,应当理解本实用新型并非局限于本文所披露的形式,不应看作是对其他实施例的排除,而可用于各种其他组合、修改和环境,并能够在本文所述构想范围内,通过上述教导或相关领域的技术或知识进行改动。而本领域人员所进行的改动和变化不脱离本实用新型的精神和范围,则都应在本实用新型所附权利要求的保护范围内。

Claims (3)

1.一种新型高导热电路板,其特征在于:它包括电路基板(1)和散热器,所述的电路基板(1)的顶表面上设置有线路层(2),所述的散热器由单面胶(3)和散热片(4)组成,单面胶(3)的顶部设置有胶粘层,胶粘层上开设有凹槽(5),凹槽(5)呈矩形状,所述的凹槽(5)内且沿凹槽(5)的长度方向顺次设置有多个散热片(4),所述的散热器位于电路基板(1)的下方,单面胶(3)经胶粘层粘合在电路基板(1)的底表面上,散热片(4)的顶表面与电路基板(1)的底表面接触,所述的线路层(2)上贴合有保护膜(6)。
2.根据权利要求1所述的一种新型高导热电路板,其特征在于:所述的每相邻两个散热片(4)之间的间距相等。
3.根据权利要求1所述的一种新型高导热电路板,其特征在于:所述的每个散热片(4)的高度均相等。
CN201620701869.3U 2016-07-06 2016-07-06 一种新型高导热电路板 Active CN205755051U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111601467A (zh) * 2020-07-02 2020-08-28 遂宁市海翔电子科技有限公司 一种高散热5g电路板的精密制作方法
CN111683475A (zh) * 2020-06-29 2020-09-18 四川海英电子科技有限公司 一种复合式高频电路板的生产方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111683475A (zh) * 2020-06-29 2020-09-18 四川海英电子科技有限公司 一种复合式高频电路板的生产方法
CN111601467A (zh) * 2020-07-02 2020-08-28 遂宁市海翔电子科技有限公司 一种高散热5g电路板的精密制作方法

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