TW201251148A - Manufacturing method of LED heat conduction device - Google Patents

Manufacturing method of LED heat conduction device Download PDF

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Publication number
TW201251148A
TW201251148A TW100120274A TW100120274A TW201251148A TW 201251148 A TW201251148 A TW 201251148A TW 100120274 A TW100120274 A TW 100120274A TW 100120274 A TW100120274 A TW 100120274A TW 201251148 A TW201251148 A TW 201251148A
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Taiwan
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heat
led
conducting
heat conduction
carrier
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TW100120274A
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TWI440233B (zh
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Zhu Li
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Pan Jit Internat Inc
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Priority to TW100120274A priority Critical patent/TW201251148A/zh
Priority to CN201110223083.7A priority patent/CN102818237B/zh
Priority to US13/234,370 priority patent/US8875373B2/en
Priority to KR1020110101753A priority patent/KR101237280B1/ko
Publication of TW201251148A publication Critical patent/TW201251148A/zh
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/004—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by deformation of parts or snap action mountings, e.g. using clips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/005—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by permanent fixing means, e.g. gluing, riveting or embedding in a potting compound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/90—Methods of manufacture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/127—Fastening; Joining by methods involving deformation of the elements by shrinking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/08—Cooling, heating or ventilating arrangements
    • H01C1/084—Cooling, heating or ventilating arrangements using self-cooling, e.g. fins, heat sinks
    • 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
    • Y10T29/49002—Electrical device making
    • 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
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
    • 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
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
    • Y10T29/49144—Assembling to base an electrical component, e.g., capacitor, etc. by metal fusion
    • 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
    • Y10T29/49826—Assembling or joining
    • 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
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49865—Assembling or joining with prestressing of part by temperature differential [e.g., shrink fit]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Thermal Sciences (AREA)
  • Led Device Packages (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Description

201251148 六、發明說明： 【發明所屬之技術領域】 本發明係一種led導熱裝置製造方法，尤指一種可提 高LED導熱板之導熱效能的成型方法。 【先前技術】 目前LED照明燈具内設有一平板狀的導熱板，該導熱 板上設有LED’以及該導熱板藉由螺絲鎖設於一散熱载體 其中’該導熱板的頂面外緣形成一導熱面，並以該導熱 面塗布散熱膠或其他導熱材質與散熱載體接觸，L E D照明 時產生的熱能傳導於導熱板上，經由導熱板上的導熱膠與 散熱載體接觸的導熱面，進一步傳導至散熱載體，達到 LED散熱的目的。 然上述中’該導熱板僅利用頂面上形成之單一導熱面 ’導熱面&供的熱能傳導接觸面積小，以及導熱板與散熱 载體螺接的方式’使導熱面與散熱載體之間存有大量的空 氣介質，影響熱傳導效率，因此LED產生的熱能無法有效 率地經由導熱板傳導至散熱載體進行散熱，故散熱效率不 佳，導致LED照明燈具的溫度升高，讓LED無法在適當 的工作飢度下運作，造成LED的使用壽命與效能下降。 另有利用螺絲鎖設的方式將導熱板與散熱載體組設， 導熱板與政熱載體之間存在大量的空氣介質，影響熱能傳 導速率戶斤W導熱性不^圭，此外，也有導熱板與散熱載體 卡接的方4 ’接觸面積太小’也會產生導熱性不佳的問題 201251148 【發明内容】 本發明之主要目的在於提供一種led導熱裝置製造方 法’希藉此設計’改善目前平板狀的導熱板利用導熱膠、 鎖設或卡接等方式與散熱載體接處的方式，產生導熱效率 不佳的問題。 為達成前揭目的，本發明所設計之LED導熱裝置製造 方法，包含有： 以冷鍛壓製成型製作一散熱載體，並於該散熱載體上 形成一略呈錐狀裝配部； 將平板狀的導熱單元放置於引伸模具内，以配合之液 壓設備對導熱單s引伸成型，將導熱單元外圍引伸形成略 呈錐面的導熱牆，讓導熱單元成型為略呈錐狀的LED導熱 板； 將LED定位並烊接於略呈錐狀的led導熱板上；以 及 先將散熱載體加熱，使其因熱膨脹，再將散熱載體與 LED導熱板進行組合，讓略呈錐狀之LED導熱板的導熱牆 與散熱載體的略呈錐狀裝配部緊迫連接，再冷卻使配合更 為緊密的熱傳導途徑。 據上所述’冷鍛壓製成型可使材料密度更高，以提升 熱傳導，該Led導熱裝置製造方法於拉伸步驟中，將導熱 單元的外圍拉伸成型出具有錐面的導熱牆，增加led導熱 板的導熱面積，以及於緊迫組接步驟中，讓LED導熱板可 以緊配於散熱載體中’使導熱牆的錐面與散熱載體的略呈 錐狀裝配部可緊密貼合’利用加熱後再冷卻的方式，也可 .201251148 提升緊密貼合度，所以LED導熱板可將LED產生的熱能 順暢的傳導出來至散熱載體，以提高LED導熱板的導熱效 率，讓LED導熱板上的LED在適當的工作溫度下發光， 進一步延長LED的使用壽命，並可省略導熱膠與螺絲的使 用0 【實施方式】 本發明LED導熱裝置製造方法係利用冷鍛壓製成型製 作一散熱載體，並於該散熱載體30上形成一略呈錐狀或直 筒狀裝配部。 將導熱單元10放置於模具内，再以配合之液壓設備對 導熱單元1 0施加引伸拉力，讓導熱單元1 〇外圍引伸成外 側面略呈錐面或垂直面的導熱牆22,使導熱單元1〇成型 為略呈錐狀或垂直的LED導熱板20，如圖1所示，該 LED導熱板20包含有一平面部21，以及該導熱牆22係由 該平面部21的外周側向延伸，故該導熱牆22環繞於該平 面部21 ’以及該導熱牆22端緣處的外徑大於該平面部21 的外徑。 將LED40定位並焊接於該LED導熱板2〇的平面部 21上。 接續進行組立步驟，將略呈錐狀的LED導熱板20, 以及散熱載體30，放置於對應配合的組立模具中，利用連 接於組立模具的液壓設備，對組立模具内的LED導熱板 20與散熱載體30進行組立，先將散熱載體3〇加熱，使 散熱載體30受熱膨脹，組立後，略呈錐狀或垂直之LED 導熱板2〇中一部分的平面部21與導熱牆22,與散熱載 201251148 體30的裝配部緊配（如圖2、圖3所示），緊配之後再行冷 卻，使散熱載體30因冷卻收縮，增加緊配度，減少|_ED 導熱板20與散熱載體30之相鄰接處的空氣介質量。 請參閱圖4所示，組接後的LED導熱板20與散熱載 體30形成LED導熱裝置，該LED導熱裝置可設置於一 LED照明燈具中，其中，該LED照明燈具包含有一燈座 50，該燈座50内可設置控制模組51，該LED導熱裝置的 散熱載體30組設於該燈座50上，並藉由一定位件52將 一燈杯單元53組固於該散熱載體30上，且該燈杯單元鄰 近該LED導熱板20 ’並配合該LED導熱板20上的 LED40，以及LED40電性連接該控制模組51。 其中，LED40發光所產生的熱能，會傳導至該LED 導熱板20的平面部21與導熱牆22，進一步將熱能傳導 至該散熱載體30以散熱。 綜上所述，該LED導熱裝置製造方法中，散熱載體 30冷鍛壓製成型可使材料密度更高，可提升熱傳導，將導 熱單元10的外圍引伸成型出導熱牆22，可增加LED導熱 板20對於散熱載體30的導熱面積，緊配合方式讓LED 導熱板20可以緊迫散熱載體30，使導熱牆22的錐面與 散熱載體30中略呈錐狀的裝配部緊貼，同時配合熱脹冷 縮提升緊配度，減少LED導熱板20與散熱載體30接觸 之間的空氣介質量，讓LED導熱板20可將LED40產生的 熱能順暢的傳導至該散熱載體30，提升LED導熱板20的 導熱效率’讓LED導熱板20上的LED40在適當的工作溫 度下發光，且可延長LED40的使用壽命’以及省略導熱膠 201251148 與螺絲的使用，故利於產業之利用。 【圖式簡單說明】 圖1 :為本發明led導熱裝置製造方法中拉伸步驟之 一較佳實施例之步驟流程示意圖。 圖2:為本發明LED導熱裝置製造方法中LED導熱裝 置之一較佳實施例之立體分解示意圖。 圖3:為本發明LED導熱裝置製造方法中LED導熱裝 置之一較佳實施例之組合側視剖面示意圖。 圖4 :為本發明led導熱裝置製造方法中LED導熱裝 置組設於LED照明燈具之一較佳實施例之組合側視剖面示 思圖β 【主要元件符號說明】 20導熱板 22導熱牆 40 LED 51控制模組 53燈杯單元 10導熱單元 21平面部 3〇散熱載體 50燈座 52定位件

Claims (1)

  1. 201251148 七、申請專利範圍： 1. 一種LED導熱裝置製造方法，其包含： 以冷鍛壓製成型製作一散熱載體，並於該散熱載體上 形成一裝配部； 將平板狀的導熱單元放置於引伸模具内，以配合之液 壓設備對導熱單元引伸成型，將導熱單元外圍引伸形成導 熱牆’讓導熱單元成型為LED導熱板； 將LED定位並焊接於LED導熱板上；以及 先將散熱載體加熱，使其因熱膨脹，再將散熱載體與 LED導熱板進行組合，讓led導熱板的導熱踏與散熱載體 的裝配部緊配連接’再冷卻使配合更為緊密。 2. 如申請專利範圍第1項所述之|_ED導熱裝置製造方 法，其中，該裝配部略呈錐狀，導熱單元外圍引伸形成略 呈錐面的導熱牆’讓導熱單元成型為略呈錐狀的LED導熱 板’略呈錐狀之LED導熱板的導熱牆與散熱載體的略呈錐 狀裝配部緊配連接。 3·如申請專利範圍第1項所述之LED導熱裝置製造方 法，其中，s玄裝配部呈直筒狀，導熱單元外圍引伸形成垂 直面的導熱牆，讓導熱單元成型為呈垂直的lED導熱板， 呈垂直之LED導熱板的導熱牆與散熱載體之直筒狀的裝配 部緊配連接。 4.如申請專利範圍第 裝置製造方法，其中，該 導熱踏環繞於該平面部， 該平面部的外徑。 第1至3項任一項所述之LED導熱 該LED導熱板包含有一平面部，該 ’以及該導熱牆端緣處的外徑大於
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