TW201423017A - 薄型熱管製造方法 - Google Patents

薄型熱管製造方法 Download PDF

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Publication number
TW201423017A
TW201423017A TW101145379A TW101145379A TW201423017A TW 201423017 A TW201423017 A TW 201423017A TW 101145379 A TW101145379 A TW 101145379A TW 101145379 A TW101145379 A TW 101145379A TW 201423017 A TW201423017 A TW 201423017A
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Taiwan
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capillary structure
heat pipe
tubular body
manufacturing
tube
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TW101145379A
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English (en)
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Chun-Ming Wu
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Asia Vital Components Co Ltd
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Priority to TW101145379A priority Critical patent/TW201423017A/zh
Priority to US13/732,415 priority patent/US9102020B2/en
Publication of TW201423017A publication Critical patent/TW201423017A/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/154—Making multi-wall tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/155—Making tubes with non circular section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/156—Making tubes with wall irregularities
    • B21C37/158—Protrusions, e.g. dimples
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
    • F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H01L23/427—Cooling by change of state, e.g. use of heat pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/09—Heat pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49353—Heat pipe device making

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

一種薄型熱管製造方法，係包含下列步驟：提供一種中空之管體及一網狀毛細結構，再將該網狀毛細結構設置於該管體內，提供一治具並將該治具設置於網狀毛細結構內，再將該管體進行燒結使該網狀毛細結構燒結於內壁上並取出該治具，對該管體進行抽真空並填入工作流體，再將該管體封閉並施以機械加工以製成扁平狀；以使網狀毛細結構得完全伏貼附所述管體內壁上，藉以維持管體完整度與維持熱管內部汽液循環通道完整度。

Description

薄型熱管製造方法
本發明係有關於一種薄型熱管製造方法，尤指一種可避免網狀毛細結構因加壓變形而影響導熱效率之薄型熱管製造方法。
熱管，其表觀上的熱傳導率是銅、鋁等金屬的數倍至數十倍左右而相當的優異，因此是作為冷卻用元件而被運用於各種熱對策相關機器。從形狀來看，熱管可分成圓管形狀的熱管、平面形狀的熱管。為了冷卻CPU等的電子機器的被冷卻零件，基於容易安裝於被冷卻零件且能獲得寬廣接觸面積的觀點，宜使用平面型熱管來進行散熱。隨著冷卻機構的小型化、省空間化，在使用熱管的冷卻機構的情況，更有嚴格要求該熱管的極薄型化之必要。
按，熱管內部設有空間來作為工作流體的流路，收容於該空間內的工作流體，經由蒸發、冷凝等的相變化和移動等，而進行熱的轉移。接下來詳細的說明熱管的動作，該熱管具備密封的空洞部，藉由收容於該空洞部的工作流體之相變化和移動來進行熱的轉移。
因此，業界採用熱管作為導熱之元件，將熱管穿設或嵌結散熱鰭片，利用熱管內部充填之低沸點工作液體在發熱電子元件處（蒸發端）吸熱蒸發，向散熱鰭片移動，在散熱鰭片處（冷凝端）將發熱電子元件產生之熱量傳遞至散熱鰭片，利用散熱風扇將產生之熱量帶走，完成對電子元件之散熱。
又，目前熱管有許多種的之製造方法，例如係透過於一中空管體中填入金屬粉末，並將該金屬粉末透過燒結之方式於該中空管體內壁形成一毛細結構層，其後對該管體進行抽真空填入工作流體最後封管，又或於所述中空管體內置入網狀毛細結構體，並將該網狀毛細結構體透過燒結之方式於該中空管體內壁形成一毛細結構層，其後對該管體進行抽真空填入工作流體最後封管，但現今因電子設備之薄型化需求，致需將熱管製作成薄型。
請參閱第1圖所示，係為習知薄型熱管製造方法所製成之薄型熱管剖視圖，而習知技術係透過於一中空管體11內置入一網狀毛細結構體12，再將其中空管體11壓扁製成扁平狀，再填入工作流體及進行抽真空及封管作業，其雖可將中空管體11製成扁平狀，但其網狀毛細結構體12於中空管體11內壁並進行加壓致扁平狀時，其網狀毛細結構體12並非完全貼附於中空管體11內壁，甚至其網狀毛細結構體12交接處會呈現脫離內壁之狀態，以致於其中空管體11壓扁製成扁平狀其網狀毛細結構體12會有變形之情況產生，以致於無法完全緊密貼附其中空管體11內壁，甚至者有所述脫離之現象產生，進而造成影響其中空管體11壓扁與同其熱管內部汽液循環通道之完整度進而造成其導熱效率變差之情況產生。
故習知技術具有下列缺點：
1.網狀毛細結構體會有變形之情況產生；
2.影響其中空管體壓扁之完整度；
3.影響熱管內部汽液循環通道之完整度；
4.導熱效率差。
本發明之主要目的在提供一種可避免網狀毛細結構因加壓變形而影響導熱效率之薄型熱管製造方法。
本發明另一目的在提供一種可維持管體完整度與維持熱管內部汽液循環通道完整度以提升導熱效率之薄型熱管製造方法。
為達上述目的，本發明係提出一種薄型熱管製造方法，係包含下列步驟：
提供一種中空之管體及一網狀毛細結構；
將該網狀毛細結構設置於該管體內；
提供一治具並將該治具設置於網狀毛細結構內；
將該管體進行燒結使該網狀毛細結構燒結於內壁上並取出該治具；
將該管體加壓製成扁狀；
對該管體進行抽真空並填入工作流體；
將該管體封閉。
為達上述目的，本發明係提出另一種薄型熱管製造方法，係包含下列步驟：
提供一種中空之管體及一網狀毛細結構；
將該網狀毛細結構設置於該管體內；
提供一治具並將該治具設置於網狀毛細結構內；
將該管體進行燒結使該網狀毛細結構燒結於內壁上並取出該治具；
對該管體進行抽真空並填入工作流體；
將該管體封閉；
施以機械加工將該管體加壓製成扁平狀。
透過本發明之薄型熱管製造方法，可使其網狀毛細結構於壓製成扁(平)型態之薄化狀後可完全伏貼附所述管體內壁，並維持管體完整度與維持熱管內部汽液循環通道完整度，達到避免網狀毛細結構因加壓變形而脫離與管體內壁之接觸，進而影響導熱效率之功效，俾使熱管實現薄型化，並大幅提升導熱效率。
本發明之上述目的及其結構與功能上的特性，將依據所附圖式之較佳實施例予以說明。
請分別參閱第2圖及第3~9圖所示，係為本發明之薄型熱管製造方法之步驟流程圖及實施示意圖及立體剖視示意圖，所述薄型熱管製造方法，係包含下列步驟：
S1：提供一種中空之管體及一網狀毛細結構；
請參閱第2及3圖所示，係準備一中空之管體2及一網狀毛細結構3，所述中空之管體2及網狀毛細結構3係為導熱性質佳之金屬材質如銅材質及鋁材質其中任一，又或者為任一種導熱性質佳之金屬，本實施例係以銅材質作為說明但並不引以為限。
S2：將該網狀毛細結構設置於該管體內；
請參閱第2及4圖所示，所述網狀毛細結構3首先係為一片狀，因此取適當寬度與長度之網狀毛細結構3以符合所述管體2之內徑，而於本實施例係將其網狀毛細結構3捲曲且使其捲曲後兩端緣接合但不相互重疊作為說明但並不引以為限，而後便將其網狀毛細結構3穿入該管體2之腔室21內，而其網狀毛細結構3置入腔室21後會展開並貼附至該管體2內壁。
S3：提供一治具並將該治具設置於網狀毛細結構內；
請參閱第2及5圖所示，係準備一治具4，所述網狀毛細結構3置入管體2後會伸展開並貼附至該管體2內壁，而該治具4於本實施例中係使用符合其網狀毛細結構3內徑之治具4寬度，令該治具4設置於網狀毛細結構3內後會使其網狀毛細結構3會完全緊密貼附於管體2內壁。
S4：將該管體進行燒結使該網狀毛細結構燒結於內壁上並取出該治具；
請參閱第2及6圖所示，此時便可將其置入有網狀毛細結構3與治具4之管體2進行燒結，該管體2進行燒結後其內部之網狀毛細結構3便完全緊密伏貼附於該內壁上，而後便將其網狀毛細結構3內之治具4取出。
S5：施以機械加工將該管體加壓製成扁(平)狀；
請參閱第2及7、8圖所示，施以機械加工將所述管體2加壓製成扁(平)狀，所述機械加工可為沖壓加工機具5及滾壓加工機具其中任一，本發明係採沖壓加工機具5，將該管體放置於沖壓加工機具5上，透過沖壓加工之方式將該管體2壓製成扁平狀，同時其管體2內部之網狀毛細結構3與管體2同時製成扁平狀，且該網狀毛細結構3於該管體2內同樣緊密貼附其管體2之內壁。
S6：對該管體進行抽真空並填入工作流體；
將經過壓成扁平狀之管體2之腔室21進行抽真空以及填入工作流體之作業。
S7：將該管體封閉。
最後將抽真空及填入工作流體之管體2呈開放之一端進行封閉作業。
另外，本發明熱管製造方法另一步驟流程（圖中未示出），其S1~S4不變，僅在S5步驟更改為先行抽真空及填入工作流體，再施行S6步驟將管體封閉，最後再進行S7步驟將該管體施以機械加工製成扁(平)狀。
藉此，本發明之薄型熱管製造方法可使其網狀毛細結構於加壓製成扁狀後仍可完全伏貼附所述管體內壁，並維持管體完整度與維持熱管內部汽液循環通道完整度，達到避免網狀毛細結構因加壓變形而影響導熱效率之功效，俾使熱管實現薄型化，並大幅提升導熱效率。
雖然本發明以實施方式揭露如上，然其並非用以限定本發明，任何熟悉此技藝者，在不脫離本發明的精神和範圍內，當可作各種的更動與潤飾，因此本發明之保護範圍當視後附的申請專利範圍所定者為準。
2．．．管體
21．．．腔室
3．．．網狀毛細結構
4．．．治具
5．．．沖壓加工機具
第1圖係為習知薄型熱管製造方法製成之薄型熱管剖視圖；
第2圖係為本發明薄型熱管製造方法之步驟流程圖；
第3圖係為本發明薄型熱管製造方法之實施示意圖一；
第4圖係為本發明薄型熱管製造方法之實施示意圖二；
第5圖係為本發明薄型熱管製造方法之實施示意圖三；
第6圖係為本發明薄型熱管製造方法之實施示意圖四；
第7圖係為本發明薄型熱管製造方法之實施示意圖五；
第8圖係為本發明薄型熱管製造方法之實施示意圖六；
第9圖係為本發明薄型熱管之立體示意圖。

Claims (5)

  1. 一種薄型熱管製造方法，係包含下列步驟：
    提供一種中空之管體及一網狀毛細結構；
    將該網狀毛細結構設置於該管體內；
    提供一治具並將該治具設置於網狀毛細結構內；
    將該管體進行燒結使該網狀毛細結構燒結於內壁上並取出該治具；
    將該管體加壓製成扁狀；
    對該管體進行抽真空並填入工作流體；
    施以機械加工將該管體封閉。
  2. 如申請專利範圍第1項所述之薄型熱管製造方法，其中所述機械加工係以沖壓加工及滾壓加工其一之方式完成。
  3. 如申請專利範圍第1項所述之薄型熱管製造方法，其中所述將該治具設置於網狀毛細結構內此一步驟係將該網狀毛細結構透過該治具有效緊密伏貼附於管體之內壁。
  4. 如申請專利範圍第1項所述之薄型熱管製造方法，其中所述將該管體加壓製成扁狀此一步驟其管體內之網狀毛細結構係依附其管體同時為扁(平)狀。
  5. 一種薄型熱管製造方法，係包含下列步驟：
    提供一種中空之管體及一網狀毛細結構；
    將該網狀毛細結構設置於該管體內；
    提供一治具並將該治具設置於網狀毛細結構內；
    將該管體進行燒結使該網狀毛細結構燒結於內壁上並取出該治具；
    對該管體進行抽真空並填入工作流體；
    施以機械加工將該管體封閉；
    將該管體加壓製成扁狀。
TW101145379A 2012-12-04 2012-12-04 薄型熱管製造方法 TW201423017A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
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TWI773292B (zh) * 2021-04-30 2022-08-01 奕昌有限公司 毛細結構的製造方法及具有該毛細結構的散熱元件

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Publication number Priority date Publication date Assignee Title
TWI429489B (zh) * 2011-01-11 2014-03-11 Cooler Master Co Ltd Metal coated heat pipe processing methods and a metal cladding of the heat pipe profiles
US20120312507A1 (en) * 2011-06-07 2012-12-13 Hsiu-Wei Yang Thin heat pipe structure and manufacturing method thereof
TW201516373A (zh) * 2013-10-29 2015-05-01 Hao Pai 具有超薄化毛細結構之熱管的製造方法
US20160095254A1 (en) * 2014-09-29 2016-03-31 International Business Machines Corporation Managing heat transfer for electronic devices
CN105479109B (zh) * 2015-12-23 2018-03-06 昆山奢茂电子科技有限公司 一种导热管的制造方法

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US3680189A (en) * 1970-12-09 1972-08-01 Noren Products Inc Method of forming a heat pipe
TWM252902U (en) * 2003-07-18 2004-12-11 Huei-Chiun Shiu Installing and forming structure for capillary structure of heat pipe
CN103673702B (zh) * 2012-08-31 2016-12-28 富瑞精密组件（昆山）有限公司 热管及其制造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI773292B (zh) * 2021-04-30 2022-08-01 奕昌有限公司 毛細結構的製造方法及具有該毛細結構的散熱元件

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